Patent Description:
The present invention relates to a surgical kit. The surgical kit includes a surgical instrument and the above assembly.

A stapler suitable for surgery is a surgical instrument that can excise redundant tissue while suturing a wound of a patient, and is widely applied to resection and anastomosis of tissue in minimally invasive surgery such as abdominal surgery, gynecology departments, pediatric departments and thoracic surgery. The stapler enters a human body by using a cannula of a puncture outfit that accurately positions a surgical site, and then makes a longitudinal incision in the tissue and applies a suturing staple on an opposite side of the incision, so as to dissect and anastomose the tissue, which is similar to a book sewer. The stapler includes an end effector. The end effector includes a staple cartridge base and a staple abutting seat. The staple cartridge base is used to receive a staple cartridge. The stapler further includes a cutting component. The cutting component is operationally supported relative to the staple cartridge base. Once a doctor determines that the end effector is appropriately grasp the tissue and in a closed position, the stapler can be started to cut and suture the tissue.

During surgery, the doctor sometimes needs to cut and suture specific target tissue, but the target tissue is attached to other tissue. For example, the doctor sometimes needs to cut and suture a blood vessel, but the blood vessel is usually attached to other tissue. In order to cut and suture the blood vessel, the doctor needs to strip the blood vessel from other tissue, then makes the blood vessel be between the staple abutting seat and the staple cartridge base, and finally uses the stapler to cut and suture the blood vessel.

When the doctor operates a conventional surgical instrument, and if the doctor needs to cut and suture the specific target tissue, the doctor usually needs to repeatedly adjust an angle of the surgical instrument to cause a far end of the end effector to align the target tissue, applies force to the surgical instrument in a direction toward the far end, to cause the far end of the end effector to separate the target tissue and then to cause the target tissue to be between the staple abutting seat and the staple cartridge base, so as to cut and suture the target tissue.

However, the design of the far end of the conventional end effector is not suitable for the stripping of the target tissue, and it is laborious for the doctor to use the end effector of the surgical instrument to separate the target tissue.

<CIT> discloses a package for a surgical blade tip is provided. The package cooperates with the surgical blade tip to properly retain it and facilitate mounting onto a surgical blade handle. In one aspect, the invention includes a package having a body with a side wall and at least two detents extending inwardly from the side wall. In addition, a surgical blade tip is provided having an adaptor with a blade extending there from the adaptor includes at least two recesses formed therein. The surgical blade tip is disposed in the package with the detents being at least partially inserted into the recesses. Also, the detents are configured to apply a retentive force to the adaptor to retain the adaptor in a first position and configured to deflect with a predetermined amount of torque being applied to the surgical blade tip so as to permit the adaptor to rotate from the first position to a second position where the detents are not inserted into the recesses. Advantageously, with the subject invention, a package may be provided which maintains a blade of a surgical blade tip in spaced relationship so as to minimize contamination thereof. In addition, the inter engagement of the detents and the recesses allows for proper retention of the surgical blade tip during mounting onto a surgical blade handle.

<CIT> discloses a blade loader is provided herein. The blade loader includes a housing defining a cavity and an insertion opening at one end portion of the cavity. The cavity is configured to accept a blade therein. The housing includes first and second sections. First and second sidewalls extend from the respective first and second sections. The first sidewall is disposed outside the second sidewall. A support extends from the housing and into the cavity configured to interact with an aperture defined by the blade. A rib structure extends into the cavity and defines a channel and a press portion. The press portion is configured to contact a portion of the blade.

In view of the deficiency in the prior art, the present invention is intended to provide an assembly for a surgical instrument. The assembly includes a separation member used for separating target tissue and a packaging box for storing the separation member.

The present invention is achieved by the following technical solutions. The assembly for a surgical instrument includes a separation member and a packaging box. The separation member and a surgical instrument switch between a first state and a second state by means of a clipping mechanism. In the first state, the separation member is connected to the surgical instrument. In the second state, the separation member is detached from the surgical instrument. The packaging box includes an accommodation portion used for accommodating the separation member, and further includes an operating member. The operating member drives the clipping mechanism to switch the separation member from the first state to the second state.

In some embodiments, the operating member includes an operating portion and a driving portion. The operating portion is pressed by an operator. The driving portion drives the clipping mechanism to switch the separation member from the first state to the second state.

In some embodiments, the operating portion performs first movement to drive the driving portion to perform second movement, so as to switch the separation member from the first state to the second state.

In some embodiments, the first movement includes rotation; and the second movement includes rotation.

In some embodiments, the packaging box includes a housing. The accommodation portion is disposed to the housing. The housing further includes a first sidewall and a second sidewall surrounding the accommodation portion. There is a gap between the first sidewall and the second sidewall. The first sidewall forms the operating portion.

In some embodiments, the operating portion includes a free end and a connection end connected to the second sidewall. The free end rotates around a junction of the connection end and the second sidewall, to drive the driving portion to move.

In some embodiments, a rotation axis of the free end is perpendicular to a central symmetry plane in a longitudinal direction of the packaging box.

In some embodiments, at least one portion of the operating portion is made of an elastic material, and the at least one portion of includes the connection end.

In some embodiments, an extending direction of the operating portion is perpendicular to an extending direction of the driving portion.

In some embodiments, the packaging box includes a housing. The housing is provided with an opening hole. The opening hole is disposed opposite to the driving portion.

In some embodiments, the accommodation portion is provided with a guide surface. The guide surface is used to guide the separation member to be inserted into the accommodation portion along the guide surface.

In some embodiments, the accommodation portion is provided with an abutment surface extending lengthwise. The abutment surface is used to limit the separation member.

In some embodiments, the accommodation portion is further provided with a guide surface. The guide surface is used to guide the separation member to move into the accommodation portion along the guide surface. The abutment surface and the guide surface intersect with each other and are disposed at an angle.

In some embodiments, the accommodation portion has an open end and a closed end. The open end is used for inserting the separation member into the accommodation portion. The closed end is used to limit the separation member.

In some embodiments, a protrusion is disposed on a surface of the accommodation portion.

In some embodiments, the clipping mechanism includes a clipping portion disposed to the separation member and a clipping port disposed to the surgical instrument. In the first state, the clipping portion is in elastically-mated connection with the clipping port. The operating member drives the clipping portion to detach from the clipping port, so that the separation member switches from the first state to the second state.

In some embodiments, the packaging box is made of a transparent material.

Compared with the prior art, the beneficial effects of the present invention are that, the assembly of the present invention includes the separation member and the packaging box. The separation member is used for stripping the target tissue, to make the operation of a doctor easier and more convenient. The packaging box can not only provide packaging for the separation member, but also serve as a disassembling tool of the separation member relative to the surgical instrument, of which design is very artful.

The present invention further provides to a surgical kit. The surgical kit includes a surgical instrument and the above assembly.

The present invention is achieved by the following technical solutions. The surgical kit includes the surgical instrument and the assembly described in any one of the above. A separation member is mounted to the surgical instrument to strip tissue.

In some embodiments, the separation member is detachably mounted to the surgical instrument by using a mating mechanism. The mating mechanism includes an insertion portion disposed to the separation member and an insertion channel disposed to the surgical instrument. The mating mechanism further includes a clipping portion disposed to the separation member and a clipping port disposed to the surgical instrument. When the clipping portion and the insertion portion are inserted into the clipping portion to be in clipped connection with the clipping port, the separation member is fixed to the surgical instrument.

In some embodiments, a sidewall of the insertion channel is provided with a channel groove extending from a far end to a near end. An operating member includes an operating portion and a driving portion. The driving portion drives the clipping portion to detach from the surgical instrument. A width of the driving portion is less than a width of the channel groove.

Compared with the prior art, the beneficial effects of the present invention are that, the surgical kit includes the assembly and the surgical instrument, which can meet requirements of the doctor for separating the target tissue and cutting and suturing the target tissue; and the surgical kit is convenient in operation.

To make the objectives, technical solutions and advantages of the present invention clearer, the present invention is further described in detail with reference to the drawings and embodiments. It should be understood that the specific examples described here are merely used to explain the present invention, and are not used to limit the present invention. Based on the embodiments in the present invention, all other embodiments obtained by those of ordinary skilled in the art without creative work shall fall within the protection scope of the present invention.

The terms "near", "rear", "far" and "front" are used herein with respect to a clinician manipulating a handle assembly of a surgical instrument. The terms "near" and "rear" refer to portions close to the clinician; and the terms "far" and "front" refer to portions away from the clinician. For example, the handle assembly is on a near side and a rear side, and an end effector is on a far side and a front side. For another example, a near side end of a certain part represents an end relatively close to the handle assembly, and a far side end represents an end relatively close to the end effector. In the present invention, a relative positional relationship between the parts of the separation member, for example, being relatively located on a "near" end or a "far" end, is based on the state in which the separation member is mounted to the surgical instrument. The terms "upper" and "lower" are based on relative positions of a staple abutting seat and a staple cartridge base of the end effector. Specifically, the staple abutting seat is at the "upper" portion, and the staple cartridge base is at the "lower" portion.

The "longitudinal direction" is defined as a direction from far to near or a direction from near to far. The "longitudinal direction" of the separation member is defined according to the state in which the separation member is mounted to the surgical instrument. The "longitudinal direction" of the packaging box is defined according to the state in which the separation member is mounted to the packaging box, that is, the longitudinal direction of the packaging box is parallel to the longitudinal direction of the separation member. In addition, that a component extends lengthwise means that a length of the component is greater than a width of the component, for example, the entire component is long-strip-shaped. However, it is to be understood that, "lengthwise extending" does not limit the specific shape and setting position of the component.

A surface of the separation member close to a side of target tissue is defined as a "front surface", and a surface away from the side of the target tissue is defined as a "back surface". Specifically, when the separation member is operated, a concave surface of the working portion is close to the target tissue and can strip the target tissue from other tissues. The surface of the side where the concave surface is located is defined as the front surface, and the surface of the side where a convex surface is located is defined as the back surface.

It is to be understood that, the orientations "near", "far", "rear", "front", "upper", "lower", "front surface", "back surface" are defined for ease of description. However, the surgical instrument may be used in various directions and positions. Therefore, these terms expressing relative positional relationships are not restrictive and absolute. The "longitudinal direction" is also defined for ease of description. In the present invention, the above definitions shall comply with the above explicit stipulations and limitations if there are other explicit stipulations and definitions.

In the present invention, unless expressly specified and limited otherwise, the terms such as "connected to each other" should be understood in a broad sense. For example, "connected to each other" may be a fixed connection, a detachable connection, a movable connection, or an integrated; or may be a direct connection or an indirect connection by means of an intermediate medium; or may be an internal communication between two elements or an interaction relationship between two elements. Except that "connection" does not include integration, "connection" has the same meaning as "connected to each other". For those of ordinary skill in the art, specific meanings of the above terms in the present invention may be understood according to a specific condition.

<FIG> shows a surgical instrument <NUM> in the present invention.

Referring to <FIG>, the surgical instrument provided in the present invention is a stapler, preferably, an electric stapler. The surgical instrument <NUM> includes a host <NUM> and a battery pack <NUM> detachably mounted with the host <NUM>. Those skilled in the art may think that, the surgical instrument may also be a manual stapler, and any solution that is the same as or similar to this implementation is covered within the protection scope of the present invention.

The host <NUM> includes a rod body assembly <NUM>, a housing <NUM> disposed on one end of the rod body assembly <NUM>, and an end effector <NUM> disposed on the other end of the rod body assembly <NUM>. A cutting component (not shown) is disposed in the end effector <NUM>.

The rod body assembly <NUM> includes a cannula <NUM> and a core shaft (not shown) accommodated in the cannula <NUM>. A motor and a transmission mechanism are disposed in the housing <NUM>. The motor drives the end effector <NUM> and the cutting component by using the transmission mechanism. The end effector <NUM> includes a staple cartridge base <NUM> and a staple abutting seat <NUM> rotatably connected to the staple cartridge base <NUM>. The staple cartridge base <NUM> is used to operationally support a staple cartridge assembly (not shown) located therein. The staple abutting seat <NUM> may be selectively moved between an open position and a closed position, so as to clamp the tissue or loosen the tissue. The cutting component is disposed in the end effector <NUM> to cut the tissue. The staple cartridge assembly is used to suture the tissue.

The transmission mechanism includes an end effector driving apparatus. The end effector driving apparatus drives the staple abutting seat <NUM> of the end effector <NUM> to rotate relative to the staple cartridge base <NUM>, so as to be selectively moved between the open position and the closed position. Generally, the end effector <NUM> driving apparatus includes a gear, a cam and the cannula <NUM>. The gear drives the cannula <NUM> to do linear movement by means of the switching of the cam. By means of the linear movement of the cannula <NUM>, the staple abutting seat <NUM> is driven to rotate by using a switching mechanism. A specific structure of the end effector driving apparatus is the same as or similar to that in the prior art, which is not described herein again.

The transmission mechanism further includes a cutting component driving apparatus. Generally, the cutting component driving apparatus includes a gear, a rack and a core shaft. The gear rotates to drive the rack, the core shaft and the cutting component to do linear movement, so that the cutting component may cut the tissue. A specific structure of the cutting component driving apparatus is the same as or similar to that in the prior art, which is not described herein again.

When the surgical instrument is used, the end effector driving apparatus first drives the cannula <NUM> to drive the staple abutting seat <NUM> to rotate to be mated with the staple cartridge base <NUM>, so as to clamp the target tissue. Then, the motor starts and rotates forward; the cutting component driving apparatus drives the cutting component to advance by using the core shaft; and the cutting component moves from an initial position to a termination position in the end effector <NUM> of the surgical instrument, and synchronously pushes a staple-pushing block in the staple cartridge to move from the initial position to the termination position, so as to achieve an effect of suturing the cut tissue while redundant tissue is cut. Next, the motor rotates backward, and the cutting component driving apparatus drives the cutting component to retract to the initial position by using the core shaft. Then, the end effector driving apparatus drives the cannula <NUM> to drive the staple abutting seat <NUM> to open, so as to loosen the tissue. Finally, the end effector driving apparatus drives the cannula <NUM> to drive the staple abutting seat <NUM> to close. Definitely, before and after the surgical instrument is used, the staple abutting seat <NUM> is required to be closed relative to the staple cartridge base <NUM>, so that the end effector <NUM> extends into a body of a patient or is removed from the body of the patient via the cannula of a puncture outfit, and details are not described again.

<FIG> show the separation member in a first implementation of the present invention. The separation member is used in cooperation with the surgical instrument <NUM>.

Referring to <FIG>, this implementation further provides the separation member <NUM> cooperatively used with the surgical instrument <NUM>. The separation member <NUM> is used to strip the tissue. Specifically, the separation member <NUM> is used to strip the target tissue from other tissue, so that the surgical instrument <NUM> may conveniently cut and suture the target tissue. For example, a doctor first uses the separation member <NUM> to strip the blood vessel from other tissue, and then uses the surgical instrument <NUM> to cut and suture the stripped blood vessel.

The separation member <NUM> is detachably connected to the surgical instrument <NUM>. That is to say, the separation member <NUM> switches between a first state and a second state. In the first state, the separation member <NUM> is connected to the surgical instrument <NUM>; and in the second state, the separation member <NUM> is detached from the surgical instrument <NUM>.

Therefore, when the separation member <NUM> is required to be used, the doctor connects the separation member <NUM> and the surgical instrument <NUM>. The doctor first uses the separation member <NUM> to strip the target tissue from other tissue, and then moves the surgical instrument <NUM> forward, to cause the target tissue to be between the staple cartridge base <NUM> and the staple abutting seat <NUM>, so as to operate the surgical instrument <NUM> to cut and suture the target tissue. When the separation member <NUM> is not required to be used, the doctor switches the separation member <NUM> from the first state to the second state, so that the separation member <NUM> is detached from the surgical instrument <NUM>. In this way, the separation member <NUM> can be prevented from occupying surgical space to affect the convenience of the surgical instrument <NUM> for cutting and suturing other tissue.

Specifically, the separation member <NUM> is detachably connected to the end effector <NUM> of the surgical instrument <NUM>. The end effector <NUM> is a working component in the surgical instrument <NUM> that is in direct contact with the tissue and cuts and sutures the tissue. That the separation member <NUM> is detachably connected to the end effector <NUM> conforms to the operation habits of the doctor and facilitates the operation of the doctor.

More specifically, the separation member <NUM> is detachably connected to the staple abutting seat <NUM> of the end effector <NUM>. Since the staple abutting seat <NUM> of the conventional surgical instrument <NUM> is not equipped with the staple cartridge and other components, the separation member <NUM> is detachably connected to the staple abutting seat <NUM>, so that the design is more rational by rationally using the staple abutting seat <NUM> without affecting the mounting and dismounting of other components (such as the staple cartridge). More specifically, the separation member <NUM> is detachably connected to a far end of the staple abutting seat <NUM>, which is more conforms to the operation habits of the doctor and facilitates the operation of the doctor.

Referring to <FIG>, the separation member <NUM> includes a mounting portion <NUM> and a working portion <NUM>. The mounting portion <NUM> is detachably connected to the surgical instrument <NUM>, and specifically, is detachably connected to the far end of the staple abutting seat <NUM> of the end effector <NUM>. The working portion <NUM> is used to strip the tissue.

The mounting portion <NUM> is detachably connected to the surgical instrument <NUM> by using the mating mechanism. The mating mechanism includes an insertion mechanism and a clipping mechanism. The insertion mechanism includes an insertion portion <NUM> disposed to the separation member <NUM> and an insertion channel <NUM> disposed on the surgical instrument <NUM>. The clipping mechanism includes a clipping portion <NUM> disposed on the separation member <NUM> and a clipping port <NUM> disposed on the surgical instrument <NUM>. The insertion channel <NUM> communicates with the clipping port <NUM>. Specifically, the clipping port <NUM> communicates with a near end of the insertion channel <NUM> and penetrates a sidewall of the insertion channel. When the separation member <NUM> is mounted, the insertion portion <NUM> and the clipping portion <NUM> are inserted into the surgical instrument <NUM> along the insertion channel <NUM>. After a certain stroke is inserted, the clipping portion <NUM> is clipped in the clipping port <NUM>, so that the separation member <NUM> is fixed on the surgical instrument <NUM>. Therefore, the mounting portion <NUM> of the separation member <NUM> is detachably connected to the surgical instrument <NUM> through insertion and clipping, thereby achieving reliable mounting and convenient dismounting.

The mounting portion <NUM> includes the insertion portion <NUM> and the clipping portion <NUM> that are connected to each other. The clipping portion <NUM> is in elastically-mated connection with the surgical instrument <NUM>. That is to say, the clipping portion <NUM> is connected to the surgical instrument <NUM> under the action of elastic force, and is detached from the surgical instrument <NUM> by overcoming the action of elastic force, so that a reliable connection and convenient dismounting can be realized. A source of the elastic force may be the elasticity of the clipping portion <NUM> itself. Alternatively, other elastomer may abut against the clipping portion <NUM>, and provide the elastic force for the clipping portion <NUM>.

Specifically, the clipping portion <NUM> is in elastically-mated connection with the clipping port <NUM>. That is to say, the clipping portion <NUM> is clipped in the clipping port <NUM> under the action of elastic force, so that the separation member <NUM> is fixed to the surgical instrument <NUM>. By overcoming the action of elastic force, the clipping portion <NUM> may be detached from the clipping port <NUM>, so that the separation member <NUM> is detached from the surgical instrument <NUM>.

The clipping portion <NUM> has a first end <NUM> and a second end <NUM>. The first end <NUM> is connected to the insertion portion <NUM>, and the second end <NUM> is in elastically-mated connection with the surgical instrument <NUM>. Specifically, the second end <NUM> rotates around the first end <NUM>, to cause the separation member <NUM> to be fixed to the surgical instrument <NUM> or to be detached from the surgical instrument, so as to achieve a detachable connection. The second end <NUM> rotates around the first end <NUM>, that is, a rotation axis is located at a position of the first end <NUM>. In this implementation, the rotation axis of the second end <NUM> is perpendicular to a central symmetry plane in a longitudinal direction of the separation member <NUM>. In this implementation, the first end <NUM> is located on the far end relative to the second end <NUM>. Those skilled in the art may think that, the first end <NUM> is located on the near end relative to the second end <NUM>.

Specifically, the first end <NUM> includes a rotating shaft <NUM>. The insertion portion <NUM> is provided with a shaft hole <NUM>. The rotating shaft <NUM> is mounted in the shaft hole <NUM>. The rotating shaft <NUM> rotates in the shaft hole <NUM> to cause the clipping portion <NUM> to rotate, so that the separation member <NUM> is finally detachably connected to the surgical instrument <NUM>. The rotation axis is a central axis of the rotating shaft <NUM>.

The shaft hole <NUM> is partially open, and the rotating shaft <NUM> is partially accommodated in the shaft hole <NUM>. That is to say, a circumferential extension angle of the shaft hole <NUM> is less than <NUM> degrees. For example, the circumferential extension angle of the shaft hole <NUM> is <NUM> degrees. The shaft hole <NUM> is partially open, so that an operation of mounting the rotating shaft <NUM> into the shaft hole <NUM> is very convenient, and a size of the separation member <NUM> may also be reduced, to cause a structure of the separation member <NUM> to be more compact.

The first end <NUM> of the clipping portion <NUM> is mounted to a first side surface <NUM> of the insertion portion <NUM>. It is to be noted that, the first side surface <NUM> refers to a surface of a back side of the insertion portion <NUM>, and the surface is not only limited to a plane area indicated by <NUM>. The second end <NUM> of the clipping portion <NUM> protrudes from a second side surface <NUM> of the insertion portion <NUM>. It is to be noted that, the second side surface <NUM> refers to a surface of a front side of the insertion portion <NUM>, and the surface is not only limited to a plane area indicated by <NUM>. The insertion portion <NUM> is provided with an opening <NUM> penetrating the first side surface <NUM> and the second side surface <NUM>. The second end <NUM> protrudes from the second side surface <NUM> by extending through the opening <NUM> from the first side surface <NUM>.

Therefore, the opening <NUM> provides space for movement stroke of the second end <NUM> of the clipping portion <NUM>. That is to say, a thickness of the insertion portion <NUM> provides space for the movement stroke of the second end <NUM> of the clipping portion <NUM>. In this way, the structure is reliable; and the size of the separation member <NUM> may also be reduced, so that the design of the structure is very rational.

The second end <NUM> of the clipping portion <NUM> is in elastically-mated connection with the clipping port <NUM> of the surgical instrument <NUM>. In this implementation, the clipping portion <NUM> itself has no elasticity. The separation member <NUM> further includes a support portion <NUM> abutting against the clipping portion <NUM>. The support portion <NUM> elastically supports the clipping portion <NUM>. The support portion <NUM> at least partially made of an elastic material. The support portion <NUM> provides elastic force for the clipping portion <NUM>. That is to say, the clipping portion <NUM> only needs to realize a function of being engaged with or detached from the surgical instrument <NUM>. The support portion <NUM> only needs to realize a function of providing the elastic force. The clipping portion <NUM> and the support portion <NUM> perform their own functions, so that process requirements for the clipping portion <NUM> and the support portion <NUM> can be reduced, which is more conform to mass production demand.

In order to apply acting force toward the second side surface <NUM> to the clipping portion <NUM>, to cause the clipping portion <NUM> to be held in the clipping port <NUM> without external force, so as to be maintained in the first state of being connected to the surgical instrument <NUM>, the support portion <NUM> is disposed on the first side surface <NUM> of the clipping portion <NUM> and is away from the second side surface <NUM> relative to the clipping portion <NUM>.

Specifically, the support portion <NUM> has a first portion <NUM> and a second portion <NUM> that are connected to each other. The first portion <NUM> is connected to the first side surface <NUM>. The second portion <NUM> abuts against the clipping portion <NUM>, and provides the elastic force for the clipping portion <NUM>, so as to cause the clipping portion <NUM> to have a trend to be clipped into the clipping port <NUM>.

In order to cause the support portion <NUM> to be reliably fixed on the separation member <NUM>, a connection portion <NUM> is disposed to the mounting portion <NUM>. The support portion <NUM> and the mounting portion <NUM> are fixed through welding at the connection portion <NUM>. Those skilled in the art may think that, other proper fixing method may also be used according to materials of the support portion <NUM> and the mounting portion <NUM>.

As described above, the shaft hole <NUM> used for mounting the rotating shaft <NUM> is partially open. In order to prevent the rotating shaft <NUM> from falling off the open shaft hole <NUM>, the support portion <NUM> covers the open portion of the shaft hole <NUM>. Specifically, the connection portion <NUM> is disposed adjacent to the shaft hole <NUM>. The connection portion <NUM> is away from the second end <NUM> of the clipping portion <NUM> relative to the shaft hole <NUM>. The far end of the first portion <NUM> of the support portion <NUM> is fixed on the connection portion <NUM>. Therefore, the support portion <NUM> extending from the far end to the near end may naturally cover the shaft hole <NUM>, so that the design of the structure is very rational.

It may be seen that, a position of one portion of the rotating shaft <NUM> is defined by the shaft hole <NUM>, and a position of the other portion is defined by the support portion <NUM>. Compared with the support portion <NUM> superposed on the totally-closed shaft hole <NUM>, the size of the separation member <NUM> can be obviously reduced, so that the structure of the separation member <NUM> can be more compact.

It is to be noted that, the present invention focuses on reducing the size of the separation member <NUM> in a plurality of aspects. Although the reduction in size of these designs may not be noticeable to naked eyes (for example, less than <NUM>), the size of the separation member <NUM> is critical. The reason is that: the end effector <NUM> of the surgical instrument <NUM> and the separation member <NUM> are required to enter the body of the patient by extending through the cannula of the puncture outfit for operation; in order to achieve the purpose of minimally invasive surgery, the cannula of the puncture outfit is available in standard sizes (for example, <NUM>/<NUM>/<NUM>/<NUM>); and widths of the end effector <NUM> and the separation member <NUM> must be less than a diameter of the cannula of the puncture outfit, so that when designing the end effector <NUM> and the separation member <NUM>, a designer needs to repeatedly consider and optimize the structure to achieve the purpose even if the size is reduced by less than <NUM>.

As described above, the first end <NUM> of the clipping portion <NUM> is mounted to the first side surface <NUM> of the insertion portion <NUM>. The first portion <NUM> of the support portion <NUM> is connected to the first side surface <NUM>. In order to better arrange the clipping portion <NUM> and the support portion <NUM>, the first side surface <NUM> of the insertion portion <NUM> is recessed inward to form accommodating space <NUM>. That is to say, the accommodating space <NUM> is disposed at the insertion portion <NUM> of the mounting portion <NUM>, and partial clipping portion <NUM> is accommodated in the accommodating space <NUM>. The accommodating space <NUM> includes the opening <NUM> penetrating the insertion portion <NUM>. The second end <NUM> of the clipping portion <NUM> protrudes from the opening <NUM> to be in clipped connection with the clipping port <NUM> in the first state. When the separation member <NUM> is in the first state, partial clipping portion <NUM> is accommodated in the accommodating space <NUM>. Preferably, when the separation member <NUM> is in the first state, partial support portion <NUM> is also accommodated in the accommodating space <NUM>.

Since the accommodating space <NUM> may store at least partial clipping portion <NUM>, or even store partial support portion <NUM>, the clipping portion <NUM> and the support portion <NUM> are prevented from completely protruding from the first side surface <NUM> of the insertion portion <NUM>. By rationally using the space of the insertion portion <NUM> itself, not only the size of the insertion portion <NUM> can be reduced, but also the structure of the insertion portion <NUM> can be more regular. The accommodating space <NUM> accommodates partial clipping portion <NUM>, and may also achieve limitation to the clipping portion <NUM>. The second end <NUM> of the clipping portion <NUM> is located in the opening <NUM>, so that the second end <NUM> may change the position under the action of the elastic force to achieve its function. Preferably, partial support portion <NUM> is accommodated in the accommodating space <NUM>; and the support portion may be prevented from interfering with the insertion channel when the insertion portion is inserted into the insertion channel.

In this implementation, the insertion portion <NUM> and the clipping portion <NUM> have no elasticity. The separation member <NUM> further includes the elastomer abutting against the clipping portion <NUM>. The elastomer abuts against the support portion <NUM> to elastically support the clipping portion <NUM>. The elastomer is the support portion <NUM>. The support portion <NUM> at least partially made of an elastic material. The support portion <NUM> provides elastic force for the clipping portion <NUM>. Those skilled in the art may think that, the clipping portion <NUM> may also have the elasticity, and any solution that is the same as or similar to this implementation is covered within the protection scope of the present invention.

In this implementation, there is no other elastomer between the support portion <NUM> and the clipping portion <NUM>, and the elastic force is provided for the clipping portion <NUM> only by the support portion <NUM>. That is to say, the elastomer abutting against the clipping portion <NUM> and elastically supporting the clipping portion <NUM> only includes the support portion <NUM>. Those skilled in the art may think that, on the basis of disposing the support portion <NUM>, another elastomer is disposed between the support portion <NUM> and the clipping portion <NUM>, for example, second elastomer. The second elastomer and the support portion <NUM> provide the elastic force for the clipping portion <NUM> together. Alternatively, the support portion <NUM> is not disposed, and the elasticity may also be provided for the clipping portion <NUM> only by other elastomer. Any solution that is the same as or similar to this implementation is covered within the protection scope of the present invention.

The second end <NUM> of the clipping portion <NUM> includes a clipping surface <NUM> and a slope <NUM> disposed with the clipping surface <NUM> at an angle. As shown in <FIG>, the clipping surface <NUM> extends vertically. As shown in <FIG>, <FIG> and <FIG>, the clipping surface <NUM> abuts against the sidewall of the clipping port <NUM> to prevent the separation member <NUM> from falling off the surgical instrument <NUM>. As shown in <FIG>, the slope <NUM> obliquely extends upward in a direction from the near end to the far end. The upward here refers to a direction toward the opening of the clipping port <NUM>. Under the guide of the slope <NUM>, the position of the second end <NUM> is changed due to the rotation of the clipping portion <NUM> in a process of being inserted into the insertion channel <NUM>, so that the insertion portion <NUM> of the separation member <NUM> and the clipping portion <NUM> may be inserted into the insertion channel <NUM> more smoothly in the direction from the far end to the near end.

The second end <NUM> of the clipping portion <NUM> further includes a top surface <NUM> disposed between the clipping surface <NUM> and the slope <NUM>. The top surface <NUM> has a certain width, and may cause the structure of the second end <NUM> to be more reliable. The top surface <NUM> may be a straight surface, or may be the inclined slope <NUM>. If the top surface <NUM> is a slope, an inclined angle of the top surface <NUM> is preferably less than an inclined angle of the slope <NUM>.

It is to be noted that, in this implementation, the clipping portion <NUM> is integrally formed. Those skilled in the art may think that, the portions of the clipping portion <NUM> are independently formed and are connected in a specific connection manner. Any solution that is the same as or similar to this implementation is covered within the protection scope of the present invention.

As described above, the mounting portion <NUM> of the separation member <NUM> includes the insertion portion <NUM> for mounting the clipping portion <NUM>. Referring to <FIG>, the insertion portion <NUM> extends lengthwise. Correspondingly, the insertion channel <NUM> extends from the far end surface of the surgical instrument <NUM> in a direction toward the near end. Specifically, the insertion channel <NUM> extends from the far end surface of the staple abutting seat <NUM> in the direction toward the near end.

It is well known to those skilled in the art that, the staple abutting seat <NUM> is provided with a knife-moving slot <NUM> extending lengthwise. The knife-moving slot <NUM> stores partial cutting component of the surgical instrument <NUM> and guides the movement of the cutting component. The knife-moving slot <NUM> is disposed in a center position of the staple abutting seat <NUM> and extends lengthwise. The insertion channel <NUM>, the clipping port <NUM> and the knife-moving slot <NUM> communicate with each other and are coaxially disposed, so that a regular structure is achieved.

The clipping port <NUM> communicates with the near end of the insertion channel <NUM> and penetrates the sidewall of the insertion channel <NUM>. Specifically, the clipping port <NUM> penetrates the sidewall of a staple against surface <NUM> of the staple abutting seat <NUM>.

Therefore, when the separation member <NUM> is required to be mounted to the surgical instrument <NUM>, the insertion portion <NUM> of the separation member <NUM> is aligned to the insertion channel <NUM>, and the separation member <NUM> is pushed in the direction from the far end to the near end. During pushing, the insertion channel <NUM> abuts against the slope <NUM> of the second end <NUM> of the clipping portion <NUM>, so that the clipping portion <NUM> rotates by overcoming the elastic force provided by the support portion <NUM>, until the second end <NUM> of the clipping portion <NUM> and the insertion portion <NUM> are successfully inserted into the insertion channel <NUM>. The separation member <NUM> is continuously pushed, until the second end <NUM> of the clipping portion <NUM> is flush with the clipping port <NUM>. The second end <NUM> of the clipping portion <NUM> rotates in a reverse direction under the action of the elastic force provided by the support portion <NUM>, and the second end <NUM> protrudes from the second side surface <NUM> of the insertion portion <NUM> and is clipped in the clipping port <NUM>. In this way, the separation member <NUM> is mounted in place.

The sidewall of the insertion channel <NUM>, specifically, the sidewall of the insertion channel <NUM> located on the staple against surface <NUM> of the staple abutting seat <NUM> includes a first excavated portion <NUM> and a second excavated portion <NUM> that communicate with the clipping port <NUM>. The second excavated portion <NUM> is located on the far end relative to the first excavated portion <NUM>. A width of the second excavated portion <NUM> is greater than a width of the first excavated portion <NUM>. A width of the clipping port <NUM> is greater than the width of the first excavated portion <NUM>.

During the inserting of the separation member <NUM>, the wider second excavated portion <NUM> may cause the insertion operation of the separation member <NUM> to be easier. During the moving of the separation member <NUM> in the second excavated portion <NUM>, the clipping portion <NUM> is not required to overcome the elasticity of the support portion <NUM> to rotate, and the support portion <NUM> is not required to be deformed, so that the service life of the separation member <NUM> may be prolonged, and the increasing of resistance due to the contact between the clipping portion <NUM> and the second excavated portion may also be prevented. When the slope <NUM> of the second end <NUM> of the separation member <NUM> is in contact with the first excavated portion <NUM>, the second end <NUM> of the clipping portion <NUM> may overcome the elasticity of the support portion <NUM> to rotate and is moved inside the first excavated portion <NUM>. When the separation member <NUM> is flush with the clipping port <NUM> by moving to the second end <NUM> of the clipping portion <NUM>, since the width of the clipping port <NUM> is greater than the width of the first excavated portion <NUM>, the clipping surface <NUM> of the clipping portion <NUM> may abut against the sidewall of the first excavated portion <NUM> adjacent to the clipping port <NUM>. In addition, the second end <NUM> of the clipping portion <NUM> rotates in the reverse direction under the action of the elastic force of the support portion <NUM> to protrude from the second side surface <NUM>, so that the second end <NUM> can be successfully clipped in the clipping port <NUM>, and the separation member <NUM> is mounted in place.

It may be seen that, through the rational design of the first excavated portion <NUM> and the second excavated portion <NUM>, not only the service life of the separation member <NUM> can be prolonged, but also the mounting operation of the separation member <NUM> can be easier and more convenient.

A length of the second excavated portion <NUM> is greater than a length of the first excavated portion <NUM>. That is to say, during the movement of the clipping portion <NUM> in the second excavated portion <NUM>, the clipping portion <NUM> is not required to overcome the elasticity of the support portion <NUM> to rotate, and the support portion <NUM> is not deformed, so that the service life of the separation member <NUM> can be prolonged.

The width of the first excavated portion <NUM> equals to a width of the knife-moving slot <NUM>. The knife-moving slot <NUM>, the clipping port <NUM>, the first excavated portion <NUM> and the second excavated portion <NUM> are coaxially disposed, so that a proper position of the separation member <NUM> after mounting may be guaranteed, the separation member does not deviate from the central axis, and the doctor may conveniently operate the separation member.

The second excavated portion <NUM>, the first excavated portion <NUM>, the clipping port <NUM>, and even the knife-moving slot <NUM> form a channel groove in the sidewall of the insertion channel <NUM> extending from the far end to the near end.

A first wedge portion <NUM> is disposed on the far end of the staple abutting seat <NUM>. The first wedge portion <NUM> has a first slope <NUM>. A second wedge portion <NUM> is disposed on the near end of the working portion <NUM>. The second wedge portion <NUM> has a second slope <NUM>. After the separation member <NUM> is mounted to the staple abutting seat <NUM>, the first slope <NUM> abuts against the second slope <NUM>.

Since the first slope <NUM> abuts against the second slope <NUM>, the first wedge portion <NUM> is superposed with the second wedge portion <NUM>, so that the separation member <NUM> may be mounted on the staple abutting seat <NUM> more reliably. In addition, the first wedge portion <NUM> may cause the far end of the staple abutting seat <NUM> to be thinner relative to other portions. The second wedge portion <NUM> may cause the near end of the working portion to be thinner relative to other portions. That is to say, even if the first wedge portion <NUM> is superposed with the second wedge portion <NUM>, a size of the junction is not obviously increased. In an aspect, the superposition causes the mounting to be reliable; and in another aspect, the size is not obviously increased by the superposition, so that the design is very rational.

The second excavated portion <NUM> is disposed to the first slope <NUM>. The mounting portion <NUM> extends from the second slope <NUM> in the direction toward the near end, so that the structure is compact, and the design is rational.

The combined thickness of the first wedge portion <NUM> and the second wedge portion <NUM> is equivalent to the thickness of the staple abutting seat <NUM> adjacent to the near end of the first slope <NUM>, and/or is equivalent to the thickness of the separation member adjacent to the far end of the second slope <NUM>.

Since the thicknesses are equivalent, that is, the thicknesses are approximately equal, a step is prevented from appearing at the junction of the separation member <NUM> and the staple abutting seat <NUM>, so that the tissue can be prevented from being scratched.

As described above, the separation member <NUM> includes the mounting portion <NUM> and the working portion <NUM>. The working portion <NUM> is used to strip the tissue.

The working portion <NUM> includes the near end <NUM> and a far end <NUM>. In a direction from the near end <NUM> to the far end <NUM>, a width of the working portion <NUM> gradually decreases. When the working portion <NUM> strips the tissue, the narrow far end <NUM> preferentially contacts the tissue, so that the narrow far end <NUM> may be conveniently inserted into the tissue and strip the target tissue from other tissue, thereby achieving more convenient operation.

At least a portion of the working portion <NUM> extends in an arc line from the near end <NUM> to the far end <NUM>. The working portion <NUM> has a working surface <NUM> extending in the arc line and recessed inward. By means of the working surface <NUM> extending in the arc line, the working portion <NUM> may successfully pass through a gap between the target tissue and other tissue when stripping the tissue, to better guide the end effector <NUM> to pass through the gap between the target tissue and other tissue, so that the separation member <NUM> and the surgical instrument <NUM> can be more convenient in operation.

The working portion <NUM> extends in the arc line, and the working surface <NUM> extends in the arc line, so that the back side of a working member also extends in the arc line. The working portion <NUM> is regular in structure and good-looking in appearance.

Outer contour lines of the working portion <NUM> and the mounting portion <NUM> of the separation member <NUM> have not obvious edges and corners. All of the outer contour lines are rounded, so that the edges and corners may be prevented from cutting the tissue.

As described above, the separation member <NUM> is mounted on the far end of the surgical instrument <NUM>. The surgical instrument <NUM> has a mounting end used for mounting the separation member <NUM>. The separation member <NUM> further includes an elastic member <NUM>. The elastic member <NUM> abuts against an end surface of the mounting end. Specifically, the elastic member <NUM> abuts against the end surface of the far end of the staple abutting seat <NUM>.

Since the end surface of the far end of the mounting end is hard and the elastic member <NUM> is flexible and deformable, when the elastic member <NUM> abuts against the end surface of the far end of the mounting end, the end surface of the far end of the mounting end may be prevented from scratching the tissue, and the risk that the tissue is sandwiched in a gap between the end surface of the far end of the mounting end and the separation member <NUM> may also be reduced, so that unnecessary pulling to the tissue can be avoided, thereby preventing the tissue from being damaged.

An outer surface of the elastic member <NUM> protrudes from an outer surface of the mounting end or is flush with the outer surface of the mounting end. Specifically, the staple abutting seat has the staple against surface <NUM> and a back surface <NUM>. In this implementation, preferably, the outer surface of the elastic member <NUM> is flush with the back surface <NUM> of the staple abutting seat <NUM> or protrudes from the back surface <NUM>. When the target tissue is stripped from other tissue, since the mounting end on the side of the back surface <NUM> of the staple abutting seat <NUM> is easy to scratch other tissue, the outer surface of the elastic member <NUM> is flush with the back surface <NUM> of the staple cartridge or protrudes from the back surface <NUM>, so that the end surface of the far end of the mounting end may be prevented from scratching the tissue to the greatest extend, and the risk that the tissue is sandwiched in the gap between the end surface of the far end of the mounting end and the separation member <NUM> may be reduced to the greatest extend.

The separation member <NUM> is provided with a slot <NUM>. The mounting end has a first outer surface <NUM>, and the separation member <NUM> has a second outer surface <NUM>. When the separation member <NUM> is in the first state, the slot <NUM> is located at an adjacent portion of the first outer surface <NUM> and the second outer surface <NUM>. The elastic member <NUM> is disposed in the slot <NUM>. By using the slot <NUM>, the elastic member <NUM> may be better mounted without affecting the functions of the elastic member <NUM>.

The outer surface of the elastic member <NUM> protrudes from the second outer surface <NUM> or is flush with the second outer surface <NUM>. By using the slot <NUM>, the elastic member <NUM> may be better mounted, but, there is a risk of scratching the tissue at the near end and/or the far end of the slot <NUM>. By causing the outer surface of the elastic member <NUM> to protrude the second outer surface <NUM> or to be flush with the second outer surface <NUM>, the elastic member <NUM> can be conveniently mounted, and the tissue can also be prevented from being scratched.

A shape of the elastic member <NUM> matches a shape of the slot <NUM>, so that the tissue can be prevented from being scratched to the greatest extent. The elastic member <NUM> is in interference fit with the slot <NUM>, so that the elastic member <NUM> can be mounted reliably, and the elastic member <NUM> can conveniently protrude from the surface adjacent to the elastic member, thereby preventing the tissue from being scratched to the greatest extent.

The slot <NUM> extends circumferentially. Therefore, the mounting of the elastic member <NUM> may be more reliable.

A bottom surface of the slot <NUM> is rough. Specifically, the bottom surface of the slot includes depressions and/or projections, which may increase the friction force between the slot <NUM> and the elastic member <NUM>. In this way, the elastic member <NUM> can be reliably mounted in the slot <NUM>.

A shape of the bottom surface of the slot <NUM> is symmetrically designed relative to the central symmetry plane in the longitudinal direction of the separation member <NUM>. Since the structure is regular, the elastic member <NUM> is evenly stressed, so that an effect of preventing tissue scratching can be better achieved.

In this implementation, the elastic member <NUM> is a component formed independently. The elastic member <NUM> is manually disposed in the slot <NUM>. Those skilled in the art may think that, the elastic member <NUM> may also be formed in the slot <NUM> in a spraying manner. Any solution that is the same as or similar to this implementation is covered within the protection scope of the present invention.

Referring to <FIG>, this implementation further provides a packaging box <NUM> of the separation member <NUM>. The separation member <NUM> may be accommodated in the packaging box <NUM>. The packaging box <NUM> provides an external packing for the separation member <NUM>, so that the separation member <NUM> is conveniently transported and stored. The separation member <NUM> and the packaging box <NUM> form an assembly. The assembly may be sold and purchased separately, or may be sold and purchased together with the surgical instrument <NUM> to form a surgical kit. Regardless of sale and purchase methods, the needs of the doctor to strip the target tissue can be met. Definitely, the separation member <NUM> in this implementation may also be sold and purchased separately.

The packaging box <NUM> includes an accommodation portion <NUM> used for accommodating the separation member <NUM>. The separation member <NUM> may be accommodated in the packaging box <NUM> by inserting the accommodation portion <NUM>. The packaging box <NUM> includes a housing <NUM>. A surface of a side of the housing <NUM> is recessed inward to form the open accommodation portion <NUM>. The accommodation portion <NUM> has an open end, so that the separation member <NUM> can be conveniently put in or taken out from the packaging box <NUM> from the open end.

The accommodation portion <NUM> has a closed end <NUM> spaced apart from the open end. A shape of the closed end <NUM> may match a shape of the far end <NUM> of the separation member <NUM>. The shape of the closed end <NUM> may also not match the shape of the far end <NUM> of the separation member <NUM>, as long as the closed end <NUM> may limit the inserting of the separation member <NUM>. Therefore, during the inserting of the separation member <NUM> into the accommodation portion <NUM>, when the far end <NUM> of the separation member <NUM> abuts against the closed end <NUM> of the accommodation portion <NUM>, an operator can perceive that the separation member <NUM> has been accommodated in place.

The accommodation portion <NUM> is provided with a convex rib <NUM>. The convex rib <NUM> is provided with a guide surface <NUM>. The separation member <NUM> slides into the accommodation portion <NUM> along the guide surface <NUM>. The guide surface <NUM> may cause the separation member <NUM> to be inserted into the accommodation portion <NUM> more easily and accurately.

The convex rib <NUM> is further provided with an abutment surface <NUM>. The abutment surface <NUM> and the guide surface <NUM> intersect with each other and are disposed at an angle, specifically, at an obtuse angle. The abutment surface <NUM> is close to the closed end <NUM> of the accommodation portion <NUM> relative to the guide surface <NUM>. The abutment surface <NUM> limits the separation member <NUM>. Specifically, when the separation member <NUM> is mounted in the accommodation portion <NUM>, the abutment surface <NUM> abuts against partial working surface <NUM> of the separation member <NUM>, so that the separation member <NUM> can be accommodated in the accommodation portion <NUM> more reliably.

It may be seen that, the convex rib <NUM> may not only define the size of the accommodation portion <NUM>, but also guide the operation of the separation member <NUM> to slide into the accommodation portion <NUM>. After the separation member <NUM> slides into the accommodation portion <NUM>, the convex rib <NUM> may also limit the separation member <NUM>, so that the design of the structure is very rational.

Referring to <FIG>, a protrusion <NUM> is disposed on a surface of the accommodation portion <NUM>. The protrusion <NUM> may support the working portion <NUM> of the separation member <NUM>, and reduce a contact area between the working portion <NUM> and the accommodation portion <NUM>, so that the separation member <NUM> can be inserted or taken out more easily. In this implementation, the protrusion <NUM> extends lengthwise and is approximately in a strip shape. The protrusion <NUM> extends in a longitudinal direction. Those skilled in the art may think that, the protrusion <NUM> may be in other shapes.

As described above, the separation member <NUM> includes the elastic member <NUM> abutting against the end surface of the mounting end of the surgical instrument <NUM>. Preferably, the outer surface of the elastic member <NUM> protrudes from the outer surface of the working portion <NUM> of the separation member <NUM>. Therefore, the elastic member <NUM> elastically abuts against an inner surface of the accommodation portion <NUM>.

During the inserting of the separation member <NUM> into the accommodation portion <NUM> of the packaging box <NUM>, and when the elastic member <NUM> elastically abuts against the inner surface of the accommodation portion <NUM>, the operator can perceive the effect of damping. The effect of damping provides operation feedback for the operator, so that the operator may determine whether the separation member <NUM> is accommodated in place by means of such feedback. That is to say, in addition to the foregoing closed end <NUM> allowing the operator to perceive that the separation member <NUM> has been inserted in place, that the elastic member <NUM> elastically abuts against the inner surface of the accommodation portion <NUM> further provides feedback for the operator, thereby further improving operation experience. In addition, the friction force between the elastic member <NUM> and the inner surface of the accommodation portion <NUM> may prevent the separation member <NUM> from falling off the accommodation portion <NUM>.

As described above, the separation member <NUM> is detachably connected to the surgical instrument <NUM> by using a mating mechanism. The separation member <NUM> switches between a first state and a second state. In the first state, the separation member <NUM> is connected to the surgical instrument <NUM>; and in the second state, the separation member <NUM> is detached from the surgical instrument <NUM>.

In this implementation, preferably, the packaging box <NUM> may not only accommodate the separation member <NUM>, but also switch the separation member <NUM> between the first state and the second state. That is to say, the packaging box <NUM> can not only provide packaging for the separation member <NUM>, but also serve as a disassembling tool of the separation member <NUM> relative to the surgical instrument <NUM>, of which design is very artful.

Specifically, the packaging box <NUM> includes an operating member <NUM>. The operating member <NUM> acts on the mating mechanism to switch the separation member <NUM> from the first state to the second state. More specifically, the operating portion <NUM> acts on the clipping mechanism to switch the separation member <NUM> from the first state to the second state.

The operating member <NUM> includes the operating portion <NUM> and a driving portion <NUM> that are connected to each other. The operating portion <NUM> is pressed by the operator. The driving portion <NUM> acts on the clipping mechanism to switch the separation member <NUM> from the first state to the second state.

The operating portion <NUM> performs first movement to drive the driving portion <NUM> to perform second movement, so as to switch the separation member <NUM> from the first state to the second state. The first movement includes rotation; and the second movement includes rotation.

The packaging box <NUM> includes the housing <NUM>. The housing <NUM> is partially recessed inward to form the accommodation portion <NUM>. The housing <NUM> includes a first sidewall <NUM> and a second sidewall <NUM> surrounding the accommodation portion <NUM>. There is a gap <NUM> between the first sidewall <NUM> and the second sidewall <NUM>. The first sidewall <NUM> forms the operating portion <NUM>. The gap <NUM> extends lengthwise in a direction from one end of the housing <NUM> to the other end. An extending length of the gap <NUM> is less than an extending length of the housing <NUM>. Due to the presence of the gap <NUM>, the first sidewall <NUM> may move relative to the second sidewall <NUM>, so that the driving portion <NUM> is driven to move and finally acts on the separation member <NUM> to switch the separation member <NUM> from the first state to the second state. In addition, the first sidewall <NUM> is a portion of the housing <NUM>. A portion of the housing <NUM> forms the operating portion <NUM>, and other components are not required to be extra disposed to form the operating portion <NUM>. Therefore, a simple structure and rational design can be achieved.

The operating portion <NUM> rotates to drive the driving portion <NUM> to rotate. Specifically, the first sidewall <NUM> includes a connection end <NUM> and a free end <NUM>. The driving portion <NUM> is connected to the free end <NUM>. The free end <NUM> rotates around the junction of the connection end <NUM> and the second sidewall to drive the driving portion <NUM> to rotate. Extra components are not required to be disposed, so that the simple structure and rational design can be achieved.

A rotation axis of the free end <NUM> is perpendicular to a central symmetry plane in a longitudinal direction of the packaging box <NUM>. The rotation axis of the free end <NUM> is also parallel to a rotation axis of the clipping portion <NUM>. Therefore, the assembly formed by the separation member <NUM> and the packaging box <NUM> may be regular in structure.

The connection end <NUM> of the operating portion <NUM> is made of an elastic material. Optionally, the entire operating portion <NUM> is made of the elastic material. Therefore, when the free end <NUM> is pressed, the connection end <NUM> is deformed, to cause the free end <NUM> to rotate around the junction of the connection end <NUM> and the second sidewall. Therefore, the doctor overcomes the elastic force of the operating portion <NUM> itself to drive the driving portion <NUM> to move, so that the separation member <NUM> may be switched from the first state to the second state. By using the elasticity of the operating portion <NUM> itself, the structure of the packaging box <NUM> can be simpler. By means of the elasticity of the operating portion <NUM> itself, the free end <NUM> is maintained in a raised state without external force, as shown in <FIG>, <FIG>.

Both the operating portion <NUM> and the driving portion <NUM> extend lengthwise. An extending direction of the operating portion <NUM> is perpendicular to an extending direction of the driving portion <NUM>. The operating portion <NUM> and the driving portion <NUM> that extend lengthwise and have the mutually perpendicular extending directions provide an enough stroke, so that the driving portion <NUM> may effectively the clipping portion <NUM>. Therefore, the separation member <NUM> can be successfully detached from the surgical instrument <NUM>.

The operating portion <NUM> is connected to the driving portion <NUM>, and cooperatively abuts against the clipping portion <NUM>. The operating portion <NUM> and the driving portion <NUM> are two independent components. Specifically, the driving portion <NUM> is a pin, and the pin is mated with a hole in the operating portion <NUM> to achieve the connection between the driving portion <NUM> and the operating portion <NUM>. Those skilled in the art may think that, the operating portion <NUM> and the driving portion <NUM> may also be integrally formed.

As shown in <FIG>, the housing <NUM> is provided with an opening hole <NUM> for the driving portion <NUM> to pass through. The opening hole <NUM> is disposed opposite to the driving portion <NUM>. Therefore, when the driving portion <NUM> is mounted, the driving portion <NUM> is connected to the operating portion <NUM> after extending through the opening hole <NUM>. Through the opening hole <NUM>, a mounting tool can conveniently extend to apply force to the driving portion <NUM>, so that the structure is rational in design. The driving portion <NUM> is connected to the free end <NUM> of the operating portion <NUM>. Correspondingly, the opening hole <NUM> is opposite to the free end <NUM> of the operating portion <NUM>. Therefore, rational layout can be achieved.

A width of the driving portion <NUM> is less than a width of the channel groove (including the second excavated portion <NUM>, the first excavated portion <NUM> and the clipping port <NUM> that successively communicate with each other) in the staple abutting seat <NUM>. During the detaching of the separation member <NUM> from the surgical instrument <NUM>, the driving portion <NUM> may be moved in the channel groove and maintained in a state of pressing the second end <NUM> of the clipping portion <NUM>.

It may be learned that, the operating member <NUM> acts on the clipping mechanism to switch the separation member <NUM> from the first state to the second state.

The far end of the accommodation portion <NUM> is closed to form the closed end <NUM>. When the separation member <NUM> is mounted to the surgical instrument <NUM>, the packaging box <NUM> accommodating the separation member <NUM> drives the separation member <NUM> to move toward the surgical instrument <NUM>. The closed end <NUM> pushes the separation member <NUM> to insert into the surgical instrument <NUM>. Therefore, the closed end <NUM> of the accommodation portion <NUM> of the packaging box <NUM> pushes the separation member <NUM> to switch from the second state to the first state.

The packaging box <NUM> is made of the transparent material, so that the packaging box is good-looking in appearance. When the separation member <NUM> is dismounted by using the packaging box <NUM>, the transparent packaging box <NUM> facilitates the operator to observe whether the dismounting operation is in place.

An application scenario of the separation member <NUM> in this implementation is described below.

After the separation member <NUM> leaves factory and before the separation member is used, the separation member <NUM> is located in the accommodation portion <NUM> of the packaging box <NUM>. The elastic member <NUM> on the separation member <NUM> elastically abuts against the inner side surface of the accommodation portion <NUM>. The separation member <NUM> is held in the packaging box <NUM> under the action of the elastic force of the elastic member <NUM>.

When the doctor needs to use the separation member <NUM> to strip the tissue during the using of the surgical instrument <NUM>, the doctor holds the housing <NUM> of the packaging box <NUM>, to align the mounting portion <NUM> of the separation member <NUM> with the insertion channel <NUM> disposed on the staple abutting seat <NUM> of the end effector <NUM> of the surgical instrument <NUM>, and pushes the packaging box <NUM> in a direction toward the surgical instrument <NUM>. During pushing, the insertion portion <NUM> of the separation member <NUM> and the clipping portion <NUM> are moved along the insertion channel <NUM>, until the second end <NUM> of the clipping portion <NUM> is flush with the clipping port <NUM> and clipped in the clipping port <NUM>. In this case, the separation member <NUM> has been mounted on the surgical instrument <NUM>.

Then, the doctor overcomes the friction force between the elastic member and the inner side surface of the accommodation portion <NUM> due to the elastic force of the elastic member <NUM>, to pull the packaging box <NUM> in a direction away from the surgical instrument <NUM>, so as to detach the packaging box <NUM> from the separation member <NUM>, so that the doctor may use the separation member <NUM> to strip the target tissue. Specifically, the narrow far end <NUM> of the working portion <NUM> of the separation member <NUM> is aligned with an interface of the target tissue and other tissue, and the surgical instrument <NUM> and the separation member <NUM> are pushed forward, until the separation member <NUM> strips the target tissue from other tissue.

After the separation member <NUM> strips the target tissue from other tissue, the doctor moves forward the surgical instrument <NUM> in a direction toward the far end <NUM>, to cause the target tissue to be between the staple abutting seat <NUM> and the staple cartridge base. Then, the doctor may use the surgical instrument <NUM> to cut and suture the target tissue.

When the doctor does not need to strip the tissue during the using of the surgical instrument <NUM>, the separation member <NUM> may be taken down from the surgical instrument <NUM>, to prevent the separation member <NUM> from occupying space to affect other operations when the surgical instrument <NUM> does not need the separation member <NUM>. Specifically, the doctor aligns the packaging box <NUM> with the separation member <NUM> to move to accommodate the separation member <NUM> in the accommodation portion <NUM> of the packaging box <NUM>. Then, the doctor presses the free end <NUM> of the operating portion <NUM>, and then the free end <NUM> rotates around the connection end <NUM> to drive the driving portion <NUM> to rotate, until the driving portion <NUM> abuts against the slop <NUM> or the top surface <NUM> of the second end <NUM> of the clipping portion <NUM>. The free end <NUM> of the operating portion <NUM> is continuously pressed, and the driving portion <NUM> drives the second end <NUM> of the clipping portion <NUM> to rotate against the acting force of the support portion <NUM>, until the second end <NUM> of the clipping portion <NUM> is detached from the clipping port <NUM>. Then, the doctor pulls the packaging box <NUM> in the direction away from the surgical instrument <NUM>. The packaging box <NUM> drives the insertion portion <NUM> of the separation member <NUM> to be detached from the insertion channel <NUM>, so that the separation member <NUM> is detached from the surgical instrument <NUM>. The separation member <NUM> detached from the surgical instrument <NUM> is located in the accommodation portion <NUM> of the packaging box <NUM>, which returns back to a state before the separation member is used and after the separation member leaves factory. It is to be noted that, after the driving portion <NUM> causes the second end <NUM> of the clipping portion <NUM> to be detached from the clipping port, the driving portion <NUM> maintains the state of pressing the second end <NUM> of the clipping portion <NUM>. That is to say, during the detaching of the separation member <NUM> from the surgical instrument <NUM>, the driving portion <NUM> presses the second end <NUM> of the clipping portion <NUM> all the time and applies force to the second end <NUM>. The driving portion <NUM> moves in the channel groove. Finally, the packaging box <NUM> drives the separation member <NUM> to detach from the surgical instrument <NUM>.

<FIG> show the separation member 200a cooperatively used with the surgical instrument provided in a second implementation of the present invention.

A difference between the separation member 200a of this implementation and the separation member in the first implementation is mainly described below.

In the first implementation, the elastic member circumferentially extends into an annular shape. The annular elastic member is mounted in a slot between the separation member and the far end surface of the staple abutting seat.

In this implementation, the elastic member 280a is in a bag shape. At least a portion of the working portion 230a is inserted in the elastic member 280a. The at least a portion of the working portion 230a has a same shape as the elastic member 280a. Specifically, the working portion 230a is inserted in the elastic member 280a from the far end to a portion adjacent to the mounting end of the surgical instrument. The end surface of the opening on the near end of the elastic member 280a abuts against the far end surface of the mounting end, to prevent the far end surface of the mounting end from scratching the tissue.

<FIG> shows the separation member cooperatively used with the surgical instrument provided in a third implementation of the present invention.

A difference between the separation member 200b of this implementation and the separation member in the first implementation is mainly described below.

In the first implementation, a first end of the clipping portion includes a rotating shaft. The rotating shaft and other portions of the clipping portion are integrally formed. The insertion portion is provided with an open shaft hole. The rotating shaft is partially accommodated in the shaft hole. The support portion covers the open portion of the shaft hole, so that a second end of the clipping portion can rotate around the rotating shaft.

In this implementation, the separation member 200b includes an independent rotating shaft 234b. The first end of the clipping portion 240b is provided with a pin hole 299b extending through the rotating shaft 234b. The mounting portion of the separation member 200b is provided with circular holes 298b corresponding to two end portions of the pin hole 299b. The rotating shaft 234b successively extends through the first circular hole 298b, the pin hole 299b and the second circular hole 298b, so that the first end of the clipping portion 240b is rotatably mounted on the mounting portion. The rotating shaft 234b is mated with the first circular hole 298b and/or second circular hole 298b, to prevent the rotating shaft from falling off.

In addition, in this implementation, the shape of the elastic member 280b of the separation member 200b, the elastic member 280b and the mating mechanism of the working portion 230b are the same as that in the second implementation, which are not described again.

<FIG> show the separation member cooperatively used with the surgical instrument provided in a fourth implementation of the present invention.

A difference between the separation member 200c of this implementation and the separation member in the third implementation is mainly described below.

In the third implementation, the connection portion is disposed on a far side of the mounting portion of the separation member adjacent to the first end of the clipping portion. The first portion of the support portion is connected to the connection portion. The support portion extends toward the near end from the connection portion. The support portion applies the force to the clipping portion relative to the second portion of the near end, so that the clipping portion has a trend to be clipped in the clipping port of the surgical instrument.

In this implementation, the support portion 250c is disposed close to the near end of the clipping portion 240c. The near end of the support portion 250c is connected to the mounting portion 220c in a manner of welding. The support portion 250c has elasticity. The far end of the support portion 250c applies the force to the second end of the clipping portion 240c, so that the clipping portion 240c has a trend to be clipped in the clipping port 60c in the surgical instrument.

<FIG> show the separation member cooperatively used with the surgical instrument provided in a fifth implementation of the present invention.

A difference between the separation member 200d of this implementation and the separation member in the second implementation is mainly described below.

In the second implementation, the clipping portion itself has no elasticity, so that the support portion provides the elastic force for the clipping portion to cause the clipping portion to have a trend to be clipped in the clipping port of the surgical instrument.

In this implementation, the clipping portion 240d is at least partially made of the elastic material, so that the clipping portion 240d has a trend to be clipped in the clipping port of the surgical instrument. That is to say, other elastomers are not extra disposed to provide the elastic force for the clipping portion 240d, so that the structure is simpler.

In this implementation, the near end of the clipping portion 240d is connected to the mounting portion 220d of the separation member 200d. The clipping portion 240d is deformed. The far end of the clipping portion 240d rotates around the near end, so that the clipping portion 240d is clipped in the clipping port or detached from the clipping port, and finally, the separation member 200d is switched between the first state and the second state. It is to be noted that, extra rotating shaft is not disposed on the near end, and the far end rotates around the junction of the near end and the mounting portion 220d.

Therefore, it may be seen that, the separation member 200d in this implementation is simpler in structure and lower in cost.

<FIG> show the separation member cooperatively used with the surgical instrument provided in a sixth implementation of the present invention.

A difference between the separation member 200e of this implementation and the separation member in the fifth implementation is mainly described below.

In the fifth implementation, the clipping portion is disposed on the front surface (second side surface) of the mounting portion of the separation member, and is mated with the clipping port disposed in the surgical instrument.

In this implementation, the clipping portion 240e is disposed on the back surface of the mounting portion 220e of the separation member 200e. The clipping port 60e is disposed on the back surface 32e of the staple abutting seat 30e. The clipping portion 240e disposed on the back surface of the mounting portion 220e is mated with the clipping port 60e disposed on the back surface 32e of the staple abutting seat 30e. Therefore, the separation member 200e can be detachably connected to the surgical instrument.

Since the clipping port 60e is disposed on the back surface 32e of the staple abutting seat 30e, the clipping port is not affected by the staple cartridge base. Therefore, the operating member of the packaging box may operate on the back surface 32e of the staple abutting seat 30e, so as to mount and dismount the separation member 200e. Therefore, the operating space is larger, and the operation is more convenient.

The far end of the clipping portion 240e is connected to the separation member 200e in the manner of welding. The clipping portion 240e itself has the elasticity, so that switching between the first state and the second state can be realized, and details are not described.

<FIG> show the separation member cooperatively used with the surgical instrument provided in a seventh implementation of the present invention.

A difference between the separation member 200f of this implementation and the separation member in the fifth implementation is mainly described below.

In the fifth implementation, the near end of the clipping portion is fixed to the mounting portion of the separation member, and the far end of the clipping portion is in mated connection with the clipping port of the surgical instrument.

In this implementation, the far end of the clipping portion 240f is fixed to the portion of the separation member 200f other than the clipping portion 240f, and the near end of the clipping portion 240f is in mated connection with the clipping port of the surgical instrument.

In this implementation, the separation member 200f is provided with an accommodation cavity 297f. The accommodation cavity 297f extends from the near end of the mounting portion in a direction toward the working portion. The accommodation cavity 297f is partially located in the working portion. A mounting shaft 296f vertically extending is disposed on the far end of the accommodation cavity 297f. The clipping portion 240f is provided with a mounting hole that can be sleeved on the mounting shaft 296f. The mounting hole is mated with the mounting shaft 296f to achieve the mated connection between the far end of the clipping portion 240f and the separation member 200f. The near end of the clipping portion 240f may rotate around the far end to achieve the clipping and detaching of the clipping port.

It is to be noted that, in this implementation, although the mounting shaft 296f is a cylindrical shaft and the mounting hole is a circular hole, the clipping portion 240f does not rotate around the axis of the mounting shaft 296f. The rotation axis of the clipping portion 240f is the same as that in the foregoing implementation. The rotation axis of the clipping portion 240f is parallel to a working surface of the separation member 200f.

To sum up, in the present invention, the doctor first uses the separation member to strip the target tissue from other tissue, and then moves the surgical instrument forward, to cause the target tissue to be between the staple cartridge base and the staple abutting seat, so as to operate the surgical instrument to cut and suture the target tissue. By using the separation member to strip the target tissue, the operation of the doctor can be easier and more convenient. In addition, by means of the clipping mechanism, the separation member is in elastically-mated connection with the surgical instrument, so that reliable connection and convenient dismounting can be realized.

In the present invention, the elastomer abuts against the end surface of the mounting end, so that the end surface of the far end of the mounting end may be prevented from scratching the tissue to the greatest extend, and the risk that the tissue is sandwiched in the gap between the end surface of the far end of the mounting end and the separation member may be reduced to the greatest extend.

In the present invention, the packaging box can not only provide packaging for the separation member, but also serve as a disassembling tool of the separation member relative to the surgical instrument, of which design is very artful. In the present invention, the elastomer may not only prevent the tissue from being scratched, but also prevent the separation member from accidentally falling off when the separation member is accommodated in the packaging box.

Claim 1:
A surgical kit, comprising an assembly, a surgical instrument (<NUM>) and a clipping mechanism, wherein the assembly comprises a separation member (<NUM>) and a packaging box (<NUM>), the separation member (<NUM>) is mounted to the surgical instrument (<NUM>) to strip tissue,
wherein the separation member (<NUM>) and the surgical instrument (<NUM>) switch between a first state and a second state by means of the clipping mechanism; in the first state, the separation member (<NUM>) is connected to the surgical instrument (<NUM>); in the second state, the separation member (<NUM>) is detached from the surgical instrument (<NUM>); the packaging box (<NUM>) comprises an accommodation portion (<NUM>) used for accommodating the separation member (<NUM>), and characterized in that the packaging box (<NUM>) further comprises an operating member (<NUM>); and the operating member (<NUM>) drives the clipping mechanism to switch the separation member (<NUM>) from the first state to the second state.