Patent Description:
As people's way of living has changed in recent years, prostate disease in men is in the trend of rising, which seriously threatens people's health and quality of life. Prostate disease is a common disease especially among older men.

At present, generally prostate biopsy is used to detect and troubleshoot prostate diseases. In ultrasound biopsy, a small amount of sample tissues needs to be taken out from different parts of the prostate for the purpose of diagnosis. Biopsy is less invasive and more accurate, and thus has been widely used in clinic applications. Common sampling ways of biopsy are by way of rectum and by way of perineum. There are some disadvantages by way of rectum, which are mainly as follows: <NUM>. an ultrasound probe and a puncture support reach the position of the prostate via the rectum entrance, and bacteria in the rectum easily lead to a high risk of being infected; and, <NUM>. puncture positions are limited and there are some blind areas. Therefore, biopsy by way of perineum is the mainstream method of prostate biopsy at present, and has advantages of aseptic operations, low risk of being infected and comprehensive sampling.

The existing needle groove plate is a square grid screen plate, on which hundreds of needle penetration holes are arranged in an array. The needle groove plate is fixedly mounted on the puncture support by a dedicated stepper. When in use, the stepper is adjusted to make the puncture support of the grid screen plate abut against a patient's perineum. The ultrasonic probe connected to the puncture support goes from the patient's anus into the prostate position, and selects an appropriate hole position of the grid screen plate to insert the needle. After the puncture needle is inserted into the patient's perineum, it reaches the position in the prostate that needs to be punctured. There are hundreds of positions into which needles can be inserted on this type of grid screen plate, which can fully cover any position where the prostate needs to be punctured without blind areas. However, there are still the following disadvantages: <NUM>. the grid screen plate requires a particular stepper for fixation, but the stepper is expensive, and its size could easily interfering the doctor's surgical operations, besides, a large area has a higher risk of being contaminated; and, <NUM>. holes in the grid screen plate are closed holes, sometimes the doctor needs to separately remove the ultrasonic probe and the puncture support during surgery, leaving only the puncture needle in the human body. In this case, since the holes in the grid screen plate are closed holes, the grid screen plate could not separate the needle and the support, and thus the need for separating cannot be satisfied.

<CIT> discloses a biopsy guide for use in guiding a needle in a transperineal prostate biopsy procedure. The biopsy guide may include a guide member and a displacement member. The guide member may operably couple with the transrectal probe and include a guide body including a distal end, a proximal end, a length, a first guide member extending the length, and a second guide member extending the length, wherein a portion of the first and second guide members overhangs the transrectal probe when coupled thereto. The displacement member may be supported by the guide member and may include a central vertically extending member having a plurality of needle receiving ports therein, and a planar member coupled to the central vertically extending member and having a planar bottom surface that is configured to slide on the first and second planar top surfaces of the first and second guide members, respectively.

<CIT> discloses a medical instrument guiding device comprising the medical instrument, a monitoring device comprising a support and a medical imaging probe which is arranged on the support, a screen, and a control unit of the device which is connected to the screen and the probe for generating at least one three-dimensional image, the control unit being configured to generate at least one two-dimensional image on the screen showing a deformation of the instrument from at least the three-dimensional image, the control unit being configured to estimate a virtual path of the instrument from the deformation of the instrument for extending the insertion thereof to a target, and deduce therefrom at least one distance between the virtual path and the target.

<CIT> discloses a puncture adapter capable of stably supporting and guiding a puncture needle to a plurality of positions and being easily detached from the puncture needle so that only the puncture needle is inserted.

In view of the above, the present invention provides a needle groove plate, a puncture support and a biopsy device, which have advantages of a simple structure, low costs, flexible and convenient operations, and capability of achieving separation of the penetration needle in surgery.

According to one aspect of the present invention, a needle groove plate is provided, which includes the features of claim <NUM>.

Optionally, on side walls of the needle groove arm, a plurality of beams is provided in parallel along the vertical direction of the needle groove arm, and the needle penetration holes are voids between the plurality of beams.

Optionally, the width of an entrance into the needle penetration holes from a radial direction of the needle penetration holes is smaller than an inner diameter of the needle penetration holes.

Optionally, the needle penetration holes have an intact inner wall.

Optionally, the needle groove arm includes a main body portion and a cooperating portion, wherein: an abutting surface of the cooperating portion is provided with a plurality of parallel grooves that are arranged along the vertical direction of the needle groove arm and penetrate the needle groove arm along the horizontal direction of the needle groove arm; and an abutting surface of the main body portion fits the abutting surface of the cooperating portion to form a hole having an intact inner wall.

Optionally, the main body portion and the cooperating portion are connected by a connecting component; the connecting component includes a hole located in the top of the main body portion and a buckle located in the top of the cooperating portion, the buckle includes a first board perpendicular to the abutting surface of the cooperating portion, a free end of the first board is connected with a second board arranged in parallel with the first board, the first board and the second board form a U-shaped structure, a free end of the second board extends and protrudes out of a surface of the cooperating portion, the said surface is a plane that located away from the abutting surface, an upper surface of the second board is provided with a protruding structure that has a fourth inclined surface and a fourth straight end surface; and/or, the bottom of the main body portion is provided with an abutting platform that abuts against the bottom of the cooperating portion, the abutting platform is provided with a groove, and the bottom of the cooperating portion is provided with a protrusion to be inserted into the groove.

In the invention, the clamping component includes a protruding structure and two insertion arms, wherein: the two insertion arms are provided along the horizontal direction of the needle groove arm, specifically at an edge of the bottom of the needle groove arm; and the protruding structure is provided in the bottom of the needle groove arm and is located between the two insertion arms, and the protruding structure includes a third inclined surface and a third straight end surface.

Optionally, one end of the insertion arms has an insertion end, and the other end is a position limit end, the position limed end is provided with a protruding stop block along a surface of the insertion arms.

According to another aspect of the present invention, a puncture support is further provided, which includes a main body, a rod, and the needle groove plate, wherein: the main body is connectable to an ultrasonic probe and has a channel whose length is smaller than the length of the rod; the rod can, from a first end thereof, go into the channel, and slide back and forth in the channel along a first direction that is parallel to an extending direction of the rod; and the needle groove plate is fixed to a second end of the rod.

Optionally, the main body includes a hold hoop and two L-shaped walls with a spacing; the hold hoop is used to connect the ultrasonic probe; and the L-shaped walls include vertical walls and horizontal walls, wherein the vertical walls extend from an outer surface of the hold hoop towards the direction away from the hold hoop, two horizontal walls respectively extend from free sides of two vertical walls towards each other, and the free sides are parallel to the first direction, so that the two L-shaped walls and an outer wall of the hold hoop form the channel.

Optionally, the hold hoop includes a hold hoop main body having an arch-shaped cross section and an arch-shaped wrench connected with the hold hoop main body, and the L-shaped walls are located on the hold hoop main body; and one end of the wrench is connected right next to one edge of the hold hoop main body ; and a first stepped edge is located next to the other edge of the hold hoop main body , the other end of the wrench is provided with a second stepped edge for clamping the first stepped edge so that the hold hoop main body and the wrench form a closed loop.

Optionally, an upper surface of a main arm of the rod includes an upper boss that protrudes upwards so as to be located between the two horizontal walls and extend along the first direction; and a plurality of pits are arranged in one line along surfaces of two side walls of the upper boss along the first direction; the two horizontal walls have notches at the same positions in the first direction; the puncture support further has a push button and two first elastic arms, wherein: a fixed end of the first elastic arms is fixed to an inner wall at an entrance of the notches, and the first elastic arms are parallel to the first direction, so that the first elastic arms and the notches form a hole, and free ends of the two first elastic arms are provided with convex points, and two convex points protrude towards each other; the push button includes a push button platform and two fixed arms, the fixed arms are located on a lower surface of the push button platform and are perpendicular to the push button platform, the fixed arms are inserted into the hole and can slide in the hole along the first direction, roots of the fixed arms have a first section of fixed arms protruding towards the entrance of the notches, the first section of fixed arms is used for abutting against the free ends of the first elastic arms so that the convex points get into the pits and thereafter cannot be separated therefrom, thereby limiting the rod sliding in the channel along the first direction.

Optionally, the first section of fixed arms is provided with a second section of fixed arms extending towards the direction away from the push button platform, a U-shaped groove parallel to the first direction is formed between the second section of fixed arms and the first section of fixed arms, and part of edges of both sides of the main arm are located in the U-shaped groove; and an upper surface of the push button platform is provided with a hand position slot and/or an identification portion.

Optionally, a lower portion of the rod has a groove extending along the first direction, and an accommodating space is formed between the groove and an outer wall of the hold hoop; a wall of the hold hoop is provided with a single hole in which a second elastic arm is provided, the single hole is located on the wall of the hold hoop in the channel and close to one end of the channel away from the needle groove plate; and the second elastic arm is parallel to the first direction, a fixed end of the second elastic arm is fixed to an end surface of the wall of the hold hoop, and a free end of the second elastic arm is provided with a protruding structure that includes a first straight end surface whose height is greater than a wall thickness of the hold hoop, so that the protruding structure protrudes towards the interior of the channel and goes into the accommodating space; and the first end of the rod has an end wall perpendicular to the first direction, and an inner side of the end wall can be blocked by the first straight end surface during the sliding process of the rod so as to stop sliding.

Optionally, a front end of the main arm is provided with two auxiliary arms in parallel extending along the first direction, a defined spacing is provided between the two auxiliary arms, and inner sides of the two auxiliary arms are each provided with protruding blocking walls protruding towards each other; a lower surface of the main arm is provided with a lower boss provided along a length direction thereof, a surface of the lower boss fits an outer wall of the hold hoop, the lower boss extends to below a lower portion of the auxiliary arms, the bottom of one end of the two auxiliary arms away from the main arm is connected to the beams, a third elastic arm arranged along a sliding direction of the rod is provided between the two auxiliary arms, both ends of the third elastic arm are respectively connected with an end portion of the main arm and the beams, and an upper surface of the third elastic arm is provided with a protruding structure that includes a second inclined surface and a second straight end surface; insertion arms are inserted between the two auxiliary arms, an upper surface of the insertion arms fits a lower surface of the blocking wall, positions of the second inclined surface and the second straight end surface, and the third inclined surface and the third straight end surface are so set that the second straight end surface abuts against the third straight end surface, and thus the insertion arms cannot exit from between the two auxiliary arms.

Optionally, both ends of the beams respectively protrude towards directions of both sides of the first direction so as to abut against an end surface of a second end of the hold hoop close to the rod to form a limit position.

According to a further aspect of the present invention, a biopsy device is further provided, which includes an ultrasonic probe and the puncture support, wherein the hold hoop of the puncture support is sleeved on an outer wall of the ultrasonic probe.

Optionally, the outer wall of the ultrasonic probe is provided with a position limit protrusion, and the hold hoop is provided with a slot for clamping the position limit protrusion.

According to the technical solution provided by the present invention, the existing square puncture support is replaced with the needle groove plate, and the needle groove plate is in a clamping connection with the puncture support without a need for a stepper structure, which not only optimizes the structure of the puncture support and reduces its volume, but also reduces manufacturing costs. Meanwhile, the needle penetration hole can adopt a groove shaped non-closed hole, so that the penetration needle can be separated from the puncture support and the ultrasonic probe during surgery, thereby facilitating flexible operations by the doctor.

The present invention will be described with reference to preferred embodiments of the present invention, particularly figures, for the purpose of illustrations rather than limitations, wherein:.

In embodiments of the present invention, the structure of a puncture support is effectively optimized, which can not only reduce its sizes and costs, but also facilitate flexible operations by a doctor and reduce a patient's discomfort in use. It will be described below in detail.

<FIG> is a structural schematic diagram of a puncture support according to an embodiment of the present invention. As shown in <FIG>, the puncture support according to the present invention includes a main body <NUM>, a wrench <NUM>, a push button <NUM>, a rod <NUM> and a needle groove plate <NUM>, wherein the main body <NUM> and the wrench <NUM> are used to connect an ultrasonic probe, a first end of the rod <NUM> is inserted into the main body <NUM>, a second end of the rod <NUM> is connected with the needle groove plate <NUM>, the rod <NUM> can slide back and forth along an extending direction thereof (the left-right direction according to the perspective in the figure, and the sliding direction will be called "a first direction" below), and the push button <NUM> can lock the rod <NUM> during the sliding process. The structure of the puncture support will be further described below.

<FIG> is a structural schematic diagram of the main body. As shown in <FIG>, the main body <NUM> includes a hold hoop <NUM> and two L-shaped walls <NUM> with a spacing in between; the hold hoop <NUM> is used to connect the ultrasonic probe; and the L-shaped walls <NUM> include vertical walls <NUM> and horizontal walls <NUM>, wherein the vertical walls <NUM> extend from an outer surface of the hold hoop <NUM> towards the direction (an upward direction according to the perspective in the figure) away from the hold hoop <NUM>, two horizontal walls <NUM> respectively extend from free sides of two vertical walls <NUM> towards each other, and the free sides are parallel to the first direction, so that the two L-shaped walls <NUM> and an outer wall of the hold hoop <NUM> form the channel <NUM>.

<FIG> is a structural schematic diagram of the main body from another perspective. As shown in <FIG> and <FIG>, according to the perspective in the figures, the L-shaped walls <NUM> are provided above a hold hoop main body of the hold hoop <NUM>, and one side of the hold hoop main body is provided with a first stepped edge <NUM> (shown in <FIG> ), and the other side thereof is provided with a rotary shaft <NUM> (shown in <FIG>).

The hold hoop <NUM> further includes a wrench <NUM> used to connect the hold hoop main body; <FIG> is a structural schematic diagram of the wrench; <FIG> is a structural schematic diagram of the wrench from another perspective; as shown in <FIG> and <FIG>, the main body of the wrench is an arch-shaped portion <NUM> that has a certain elastic deformation capability. One end of the arch-shaped portion <NUM> is provided with a rotary sleeve <NUM>, and the other end of the arch-shaped portion <NUM> is provided with a second stepped edge <NUM> for clamping the first stepped edge <NUM>, wherein, a hand position <NUM> is further provided at the second stepped edge <NUM>.

The rotary sleeve <NUM> is a cylinder provided with an opening whose width is smaller than an inner diameter of the cylinder, and the rotary sleeve <NUM> has a certain elastic deformation capability to make the width of the opening varies, and further make the rotary sleeve <NUM> capable of clamping a connecting shaft <NUM>, so that the wrench <NUM> is rotatable about the rotary shaft <NUM> within a certain range. The first stepped edge <NUM> can occlude with the second stepped edge <NUM> provided on the wrench <NUM>, the inclination directions of the steps of the first stepped edge and the second stepped edge make the two only movable towards each other in the direction of reducing the inner diameter of the hold hoop in the contact state. If the inner diameter of the hold hoop needs to be increased, the other end of the wrench <NUM> needs to be pulled, so that the first stepped edge <NUM> is separated from the second stepped edge <NUM>. In this way, after the puncture support is sleeved on the ultrasonic probe, it is only required to hold the hold hoop at the thumb-index web of an operator's hand and then apply a force to tighten up the hold hoop. Thus it is easy to control the size of the hold hoop <NUM> thus formed, and the hold hoop <NUM> cannot automatically relax after being tightened up. In addition, multi-step stepped edges make the hold hoop suitable for various diameters of the puncture support, thereby improving applicability of the puncture support.

As shown in <FIG> and the above depictions, there is a split structure between the hold hoop main body and the wrench <NUM>, and the ultrasonic probe is held closely by starting or closing of the wrench <NUM>. In addition, the hold hoop main body and the wrench <NUM> can also be set as an integral structure. That is, the hold hoop main body and the wrench <NUM> enclose a closed loop with a constant inner diameter, friction between an inner surface of the hold hoop and an outer surface of the ultrasonic probe is used to sleeve the closed-loop structure on the ultrasonic probe when the puncture support is connected with the ultrasonic probe.

<FIG> is a structural schematic diagram of adding a rubber pad to the wrench. As shown in <FIG>, a rubber pad <NUM> is provided on an inner wall of the arch-shaped portion <NUM> along its radian direction, the soft rubber pad <NUM> is made of soft materials such as rubber, TPE or TPU, and is fixedly connected, e.g., bonded, to the arch-shaped portion <NUM>. By setting the structure of the rubber pad <NUM>, the puncture support can be assembled better, and friction between the puncture support and the ultrasonic probe can be increased, thereby facilitating a stabler assembling. Besides, since the rubber pad <NUM> is of an elastomer material, the ultrasonic probe can be protected from being scratched and damaged when the puncture support is mounted and dismounted.

<FIG> is a structural schematic diagram of the push button, and <FIG> is a structural schematic diagram of the push button from another perspective. As shown in <FIG>, the push button <NUM> includes a push button platform <NUM> and two fixed arms <NUM> located on the lower surface of the push button platform <NUM> and perpendicular to the push button platform <NUM>. The upper surface of the push button platform <NUM> is provided with a hand position slot <NUM> and/or an identification portion. The hand position slot <NUM> can increase friction between figures and the hand position slot <NUM> during in use, and the identification portion is character and/or pattern information to facilitate the user to know about functions and operation method of the push button <NUM>.

<FIG> is a structural schematic diagram of the rod. As shown in <FIG>, the rod <NUM> includes a main arm <NUM>, an upper boss <NUM> provided above the main arm <NUM>, and a lower boss <NUM> provide below the main arm <NUM>. The upper boss <NUM> and the lower boss <NUM> extend along the length direction of the main arm <NUM>, and the three are an integral structure. That is, the shape of the cross section of the rod <NUM> is similar to the "+" character. The rod <NUM> can, from its first end (a proximal end according to the perspective of <FIG>) go into a channel <NUM>, the length of the channel <NUM> is less than the length of the rod <NUM>, so that after the rod <NUM> goes into the channel <NUM>, part of the rod <NUM> is located outside the channel <NUM> and a needle groove plate can be mounted. The rod <NUM> can slide back and forth in the channel <NUM> along the first direction. In this state, the upper boss <NUM> is located between two horizontal walls <NUM>, and the surface of the lower boss <NUM> fits the outer wall of the hold hoop <NUM>.

<FIG> is a structural schematic diagram of the rod being connected with the needle groove plate. As shown in <FIG>, the needle groove plate <NUM> is fixed to the second end of the rod <NUM> (i.e., a distal end in <FIG>), and the needle groove plate <NUM> is provided with at least one needle penetration hole <NUM> parallel to the first direction. The structure of the needle groove plate will be described below.

In embodiments of the present invention, the push button <NUM> can be used to lock the rod <NUM> so as to limit expansion position of the rod <NUM> on the main body <NUM> and achieve the purpose of adjusting the position of the needle groove plate <NUM>. As shown in <FIG>, a plurality of pits <NUM> are arranged in one line along surfaces of two side walls of the upper boss <NUM> along the first direction. <FIG> is a structural schematic diagram of the top of the main body. <FIG> is a sectional view of the first elastic arm along the first direction. As shown in <FIG>, <FIG>, <FIG>, the two horizontal walls <NUM> have notches <NUM> in the same positions in the first direction, the fixed end of the first elastic arm <NUM> is fixed to the inner wall at the entrance of the notches122, and the first elastic arm <NUM> is parallel to the first direction, so that the first elastic arm <NUM> and the notches <NUM> form the hole <NUM>. Free ends of two first elastic arms <NUM> are provided with convex points <NUM>, and two convex points <NUM> protrude towards each other. When the push button <NUM> is connected with the main body <NUM>, the fixed arms <NUM> are inserted into the hole <NUM> and can slide in the hole <NUM> along the first direction, roots of the fixed arms <NUM> have a first section <NUM> of fixed arms protruding towards the entrance of the notches <NUM>, the first section <NUM> of fixed arms abuts against the first elastic arms <NUM> when the first section <NUM> of fixed arms is located at the free ends of the first elastic arms <NUM>, then the first section of fixed arms <NUM> can limit the opening of the free ends of the first elastic arms <NUM> so that the convex points <NUM> cannot be separated from the pits <NUM> and the first elastic arms <NUM> lock tightly the rod <NUM> to achieve the purpose of limiting free sliding of the rod <NUM> along the first direction. When the first section <NUM> of fixed arms slides to the other end of the first elastic arms <NUM> (away from the free end), the free end of the first elastic arms <NUM> breaks away from limitation of the first section <NUM> of fixed arms, then the rod <NUM> is manually pulled, the convex points <NUM> can break away from the pits <NUM> under the action of external force, and if continuing to apply a pulling force to the rod <NUM>, the convex points <NUM> repeat acts of getting into the pits <NUM> and breaking away from the pits <NUM> until the rod <NUM> moves to a target position. At that time, the convex points <NUM> get into the pits <NUM>, the first section <NUM> of fixed arms is moved to the free end of the first elastic arms <NUM>, and the first section <NUM> of fixed arms locks tightly the rod <NUM> again to complete adjustments of the position of the rod <NUM>.

As shown in <FIG> , the first section <NUM> of fixed arms is provided with a second section <NUM> of fixed arms extending towards a direction away from the push button platform <NUM>, a U-shaped groove <NUM> parallel to the first direction is formed between the second section <NUM> of fixed arms and the first section <NUM> of fixed arm, and in the state shown in <FIG>, part of edges of both sides of the main arm <NUM> are located in the U-shaped groove <NUM>.

In embodiments of the present invention, when the push button <NUM> is in an unlocked state, the rod <NUM> can freely slide in the channel <NUM> of the main body <NUM>. In order to prevent the rod <NUM> from being separated from the main body <NUM>, a position limit structure is further provided therebetween. <FIG> is a structural schematic diagram of the lower surface of the rod (according to the perspective of <FIG>). As shown in <FIG>, there is a groove <NUM> extending along the first direction below the rod <NUM> (in <FIG>, the rod <NUM> is in a flip state that the lower surface is placed upwards), the groove <NUM> can form an accommodation space with the outer wall of the hold hoop <NUM>. As shown in <FIG>, the wall of the hold hoop <NUM> is provided with a single hole <NUM>, and a second elastic arm <NUM> is provided in the single hole <NUM>. The second elastic arm <NUM> has a certain elastic deformation capability, and the single hole <NUM> is located on the wall of the hold hoop <NUM> in the channel <NUM> and close to one end of the channel <NUM> away from the needle groove plate <NUM> (see <FIG> ). The second elastic arm <NUM> is parallel to the first direction, the fixed end of the second elastic arm <NUM> is fixed to the end surface of the wall of the hold hoop <NUM> and the free end of the second elastic arm <NUM> is provided with a protruding structure <NUM>, and the protruding structure <NUM> includes a first straight end surface <NUM> and a first inclined surface <NUM> whose height is greater than a wall thickness of the hold hoop <NUM>, so that the protruding structure <NUM> protrudes towards the interior of the channel <NUM> and goes into the accommodating space formed between the groove <NUM> and the outer wall of the hold hoop <NUM>. As shown in <FIG>, the first end of the rod <NUM> has an end wall <NUM> perpendicular to the first direction. Referring to <FIG>, when the rod <NUM> slides in the channel <NUM> towards the outer side of the end wall <NUM> in the upper right of <FIG> during an inserting sliding process, the rod <NUM> passes the first inclined surface <NUM>, then an inner side <NUM> is blocked by the first straight end surface <NUM> from the retracting sliding process of the rod <NUM> in the channel <NUM> in the lower left of <FIG> thus lock the rod <NUM> in place, so the rod <NUM> cannot exit from the channel <NUM>. In addition, the protruding structure <NUM> is enclosed in the accommodating space so that the rod <NUM> cannot be easily disassembled from the channel <NUM>, which facilitates realizing disposable use of the puncture support and improving sanitation and safety.

In embodiments of the present invention, the needle groove plate <NUM> is in a clamping connection with the second end of the rod <NUM>. <FIG> is a structural schematic diagram of another perspective of the rod. <FIG> is a sectional view of the front end of the rod. As shown in <FIG> and <FIG>, the front end of the main arm <NUM> is provided with two auxiliary arms <NUM> that are parallel at edges of both sides of the main arm <NUM> and extend along the first direction, the two auxiliary arms <NUM> extend from edges of both sides of the main arm <NUM> and thus there is a space formed therebetween. The inner sides of the two auxiliary arms <NUM> are each provided with protruding blocking walls <NUM>, and two blocking walls <NUM> protrude towards each other. The lower boss <NUM> is extended under the auxiliary arms <NUM>, and the bottom of one end of the two auxiliary arms <NUM> that is away from the main arm <NUM> is connected to the beam <NUM>. A third elastic arm <NUM> provided along the sliding direction of the rod <NUM> is provided between the two auxiliary arms <NUM>, both ends of the third elastic arm <NUM> are respectively connected with the end portion of the main arm <NUM> and the beam <NUM>, the upper surface of the third elastic arm <NUM> is provided with a protruding structure <NUM> that includes a second inclined surface <NUM> and a second straight end surface <NUM>.

<FIG> is a structural schematic diagram of a needle groove plate of a semi-closed needle penetration hole, <FIG> is a structural schematic diagram of another perspective of <FIG>, and <FIG> is a structural schematic diagram of the bottom of the needle groove plate. As shown in <FIG>, the needle groove plate <NUM> includes a needle groove arm <NUM> and two insertion arms <NUM>, wherein the needle groove arm <NUM> is provided with a depth identifier <NUM> and a specification identifier <NUM>, and the two insertion arms <NUM> are provided at the edge of the bottom of the needle groove arm <NUM> along the horizontal direction of the needle groove arm <NUM>. The bottom surface of the needle groove arm <NUM> is provided with a protruding structure <NUM> located between the two insertion arms <NUM>. The protruding structure <NUM> includes a third inclined surface <NUM> and a third straight end surface <NUM>. The insertion arms <NUM> are inserted between the two auxiliary arms <NUM>, and the upper surfaces of the insertion arms <NUM> fit the lower surfaces of the blocking walls <NUM>, the positions of the second inclined surface <NUM> and the second straight end surface <NUM>, and the third inclined surface <NUM> and the third straight end surface <NUM> are so set that the second straight end surface <NUM> abuts against the third straight end surface <NUM>, and thereby the insertion arms <NUM> cannot move towards the left (see <FIG>) and accordingly cannot exit from between the two auxiliary arms <NUM>. On the other hand, the insertion arms <NUM> are blocked by the upper boss <NUM> of the main arm <NUM> when moving towards the right, so that the needle groove plate <NUM> is fixed to the main arm <NUM>. Besides, as can be seen, the second straight end surface <NUM> and the third straight end surface <NUM> that abut against each other cannot be reached from the outside, and thus the abutting state cannot be removed without causing damages, thereby realizing disposable use of medical devices and improving sanitation and safety.

As shown in <FIG>, both ends of the beam <NUM> respectively protrude towards the left and the right so as to abut against the end surface of the second end of the hold hoop <NUM> close to the rod <NUM> to form a limiting position. The limiting position structure cooperates with the limiting position structure of the end wall <NUM> of the other end of the rod <NUM> so that there are both limiting positions at both ends of the rod <NUM> and the rod <NUM> cannot be separated from the main body <NUM>. This also helps to realize disposable use of the medical devices.

In embodiments of the present invention, the needle penetration hole <NUM> is a fully closed hole or a semi-closed hole, wherein, a plurality of beams are provided in parallel on the side wall of the needle groove arm <NUM> along the vertical direction of the needle groove arm <NUM>, and spacing between the plurality of beams forms a semi-closed hole; or, the needle penetration hole <NUM> is a hole having a full inner wall and penetrating the needle groove plate <NUM>, and is a fully closed hole. As shown in <FIG> and <FIG>, the needle penetration hole <NUM> in the needle groove plate <NUM> is a semi-closed hole. <FIG> is a structural schematic diagram of a needle groove plate of a fully closed needle penetration hole. <FIG> is a structural schematic diagram of another perspective of <FIG>. The needle penetration hole <NUM> in the needle groove plate <NUM> in <FIG> is a fully closed hole. The position of the needle penetration hole <NUM> is in one-to-one correspondence with the position of the depth identifier <NUM>, and conforms to the needle insertion route set by software in an ultrasound machine. The size of the needle penetration hole <NUM> is in one-to-one correspondence with the specification identifier <NUM>. The model of the needle penetration hole <NUM> can be selected according to the actual needs, wherein, when the semi-closed hole structure is used, a puncture needle or a biopsy needle can be rapidly moved in parallel out of the opening of the needle penetration hole <NUM> when the doctor requires the puncture needle to be separated from a puncture needle support, so that the ultrasonic probe and the puncture support can be rapidly removed and the puncture needle can be left alone in the human body for operations such as drug delivery or treatment.

Since the needle groove plate <NUM> is an independent structure, it is only required that the needle groove plate <NUM> is clamped on the rod <NUM>. Therefore, the needle groove plate <NUM> may have various structural forms. <FIG> is a structural schematic diagram of the main body, <FIG> is a structural schematic diagram of the cooperating portion, <FIG> is a structural schematic diagram of the buckle of the top of the cooperating portion, and <FIG> is a structural schematic diagram of the protrusion in the bottom of the cooperating portion. As shown in <FIG>, the needle groove plate <NUM> can further adopt a split structure. That is, the needle groove arm <NUM> includes a main body portion <NUM> and a cooperating portion <NUM>, a groove <NUM> is provided on an abutting surface of the cooperating portion <NUM>, and an abutting surface of the cooperating portion <NUM> abuts against the cooperating portion <NUM> to form a closed hole.

The main body portion <NUM> and the cooperating portion <NUM> are connected by a connecting component. The connecting component includes a hole <NUM> located on the top of the main body portion <NUM> and a buckle <NUM> located on the top of the cooperating portion <NUM>, the buckle <NUM> includes a first board <NUM> perpendicular to the abutting surface of the cooperating portion <NUM>, a free end of the first board <NUM> is connected with a second board <NUM> provided parallel to the first board <NUM>, the first board <NUM> and the second board <NUM> form a U-shaped structure, a free end of the second board <NUM> extends and protrudes out of the surface of the cooperating portion <NUM>, the extends and protrudes out of surface is a plane away from the abutting surface of the cooperating portion <NUM>, and the upper surface of the second board <NUM> is provided with a protruding structure <NUM> that has a fourth inclined surface <NUM> and a fourth straight end surface <NUM>. The bottom of the main body portion <NUM> is provided with an abutting platform <NUM> that abuts against the bottom of the cooperating portion <NUM>, the abutting platform is provided with a groove <NUM>, and the bottom of the cooperating portion <NUM> is provided with a protrusion <NUM> to be inserted into the groove <NUM>.

<FIG> is a structural schematic diagram when the main body portion and the cooperating portion are assembled, and <FIG> is a structural schematic diagram after the main body portion and the cooperating portion are assembled. As shown in <FIG>, when the main body portion <NUM> and the cooperating portion <NUM> are assembled into a device, firstly the protrusion <NUM> is inserted into the groove <NUM>, and the central point of the protrusion <NUM> and the groove <NUM> moves the cooperating portion <NUM>, so that the abutting surface of the cooperating portion <NUM> fits the abutting surface of the main body portion <NUM>, wherein, during the movement process, the buckle <NUM> is inserted into the hole <NUM>, the second board <NUM> can be deformed downwards (extrusion deformed or manually pressed deformed), and can automatically reset, so that the protruding structure <NUM> automatically resets after going through the hole <NUM>, and finally the fourth straight end surface <NUM> abuts against the hole <NUM> to form an assembly structure as shown in <FIG>. When disassembling is performed, a handle <NUM> on the second board <NUM> is pressed by hand to deform the second board <NUM>, then the protruding structure <NUM> can break away from blocking by the side walls of the periphery of the hole <NUM> so as to separate the buckle <NUM> from the hole <NUM>, and finally it is only required that the protrusion <NUM> in the bottom of the cooperating portion <NUM> is pulled out from the groove <NUM>.

The needle groove plate <NUM> adopts a split structure. When the needle groove plate <NUM> is used, cooperating portions <NUM> of different models can be assembled with the main body portion <NUM> to further form needle groove plates <NUM> of different models to satisfy different usage requirements in biopsy surgery.

The puncture support provided by the embodiment has the following advantages:.

Embodiments of the present invention further provide a biopsy device, which includes an ultrasonic probe <NUM> and a puncture support <NUM>. <FIG> is a structural schematic diagram of the biopsy device, and as shown in <FIG>, the hold hoop <NUM> of the main body <NUM> is sleeved on the outer wall of the ultrasonic probe. In order to further improve stability of connection between the puncture support <NUM> and the ultrasonic probe <NUM>, as shown in <FIG>, the hold hoop <NUM> is provided with a slot <NUM> for clamping the position limit protrusion on the outer wall of the ultrasonic probe. At the same time, the lower surface of the beam <NUM> abuts against the outer wall of the ultrasonic probe <NUM>, and in order to improve fitting degree between the two, the lower surface of the beam <NUM> is set as an arch-shaped surface having the same radian as the outer wall of the ultrasonic probe <NUM>.

Claim 1:
A needle groove plate (<NUM>) for a biopsy device, the needle groove plate comprising a needle groove arm (<NUM>) and a clamping component, wherein:
the needle groove arm (<NUM>) is provided with a plurality of parallel needle penetration holes (<NUM>) arranged along the vertical direction of the needle groove arm (<NUM>) and penetrating the needle groove arm (<NUM>) along the horizontal direction of the needle groove arm; and
the clamping component is located at the bottom of the needle groove arm (<NUM>) for connecting a puncture support (<NUM>), characterized in that the clamping component comprises a protruding structure (<NUM>) and two insertion arms (<NUM>), wherein:
the two insertion arms (<NUM>) are provided at an edge of the bottom of the needle groove arm (<NUM>) along the horizontal direction of the needle groove arm (<NUM>);
the protruding structure (<NUM>) is provided in the bottom of the needle groove arm (<NUM>) and is located between the two insertion arms (<NUM>), and the protruding structure (<NUM>) comprises a third inclined surface (<NUM>) and a third straight end surface (<NUM>).