Source: https://patents.google.com/patent/WO2018061562A1/en
Timestamp: 2019-07-20 12:18:36
Document Index: 641929363

Matched Legal Cases: ['art 11', 'art 112', 'art 112', 'art 111', 'art 11', 'art 11', 'arts 132', 'art 12', 'art 141', 'art 141', 'art 146', 'art 141', 'art 141', 'art 11', 'Application No. 2016', 'art,\n14', 'art,\n100', 'art,\n142']

WO2018061562A1 - Liquid medicine administration device - Google Patents
Liquid medicine administration device Download PDF
WO2018061562A1
WO2018061562A1 PCT/JP2017/030604 JP2017030604W WO2018061562A1 WO 2018061562 A1 WO2018061562 A1 WO 2018061562A1 JP 2017030604 W JP2017030604 W JP 2017030604W WO 2018061562 A1 WO2018061562 A1 WO 2018061562A1
PCT/JP2017/030604
勝平 佐々木
2016-09-27 Priority to JP2016-188563 priority Critical
2016-09-27 Priority to JP2016188563 priority
2017-08-25 Application filed by テルモ株式会社 filed Critical テルモ株式会社
2018-04-05 Publication of WO2018061562A1 publication Critical patent/WO2018061562A1/en
[Problem] To provide a liquid medicine administration device capable of discriminating between failure in a drive mechanism such as a motor and blockage of a circulation portion that forms a flow path. [Solution] A liquid medicine administration device 100 according to the present invention stops delivery of liquid from a liquid delivery tube 142 when an output from a rotation detection unit 132 is not included in a detection region; determines that the liquid delivery tube 142 or a cannula 113 and a support member 114 are blocked when the output of the rotation detection unit 132 is included in the detection region in a state in which a motor 136 is rotated in a rotation direction opposite to the direction for the liquid delivery; and determines that a drive mechanism 131 fails when the output is not included in the detection region.
The chemical dosing device
The present invention relates to a drug solution administration device used to administer a drug solution into a living body.
As a device for administering a drug solution such as insulin from conventionally been a portable dispensing device is known to administer continuously chemical while being attached to the skin of the patient or subject to be subject of administration.
In this drug solution delivery device, although unlikely to occur in the case of normal, which may be predetermined operation when an abnormality occurs in the apparatus as a fallback. In the prior art relating to the operation at the time of abnormal timer to monitor the speed of the motor included in the control unit, if the speed falls below a predetermined range, the control unit of the actuator for operating the plunger to push the chemical liquid in the syringe stopping (see Patent Document 1).
JP 2002-136594 JP
If an abnormality in the chemical delivery device as described above is found, replace the entire device, or to identify the components will cause abnormal, it is necessary to replace the component or component group. A case of replacing only the parts required as in the latter case, although monitors the operation of the motor in Patent Document 1, the abnormality due to clogging of the chemical liquid to flow circulating passage administering seemingly due failure of the motor it is not possible to identify whether such of.
The present invention aims to provide a chemical solution dosing device that can determine a blockage of circulation portion constituting a failure and the flow path of the drive mechanism such as a motor.
Chemical dosing device according to the present invention, flow and distribution section having a distribution is to channel the liquid medicine, a liquid medicine reservoir for storing the drug solution to be sent to the distribution section communicates with the circulation unit, the chemical stored in the chemical reservoir a drive mechanism having a motor for generating a driving force for feeding the road, a detector for detecting the operating state of the drive mechanism in the detection area set to control the drive mechanism, a judgment based on the output from the detector and a control unit that performs. Control unit, when the output from the detector is not included in the detection region, the liquid feed from the distribution unit is stopped, the detection of the output while rotating the opposite motor rotation direction at the time of feeding There is determined that the clogging in the circulation unit if included in the detection area has occurred, the output is determined that a failure in the drive mechanism to be included in the detection area has occurred.
According to the drug solution administration device according to the present invention, if the occluded flow portion constituting the flow path occurs, the output detection unit is rotated with the motor in the rotational direction of the feeding and reverse are included in the detection area . On the other hand, if there is an abnormality in the drive mechanism, the output of the detection unit even reverse rotation is not included in the detection region. Therefore, with the structure described above, it is possible to determine the fault in the closed and the drive mechanism in the distribution unit.
The drug solution delivery device according to a first embodiment of the present invention is a schematic diagram showing. It is an exploded perspective view showing a liquid supply body portion of the chemical solution administration device. Is a plan view showing the injection of the drug solution administration device. An enlarged sectional view taken along line 4-4 of FIG. 3, FIG. 4 (A) shows a state before introducing the cannula into the living body, to FIG. 4 (B) in vivo a cannula by piercing device is a diagram illustrating the introduced state was. Figure 4 (C) is withdrawn the puncture device, showing a state in which the cannula is indwelled in the body. It is a schematic plan view showing the structure of each part in the feeding body portion of the chemical solution administration device according to the first embodiment. It is a perspective view showing a blocking member which constitutes the rotation detecting unit for detecting the rotation of the motor constituting the driving mechanism. A sectional view taken along line 7-7 of FIG. 5, FIG. 7 (A) shows a state before connecting the injection portion and the liquid supply portion, FIG. 7 (B), injection unit and feeding parts is a diagram showing a state of connecting the. It is a block diagram illustrating a configuration of a control system of the chemical solution administration device. Is a flowchart showing specific cause of a failure in the chemical solution administration device according to the first embodiment. Is a flowchart showing specific cause of a failure in the chemical solution administration device according to the second embodiment.
Hereinafter, with reference to the accompanying drawings, an embodiment of the present invention. It should be noted that the following description is not intended to limit the meaning of the technical scope and terms set forth in the appended claims. Further, dimensional ratios in the drawings are exaggerated for convenience of explanation, and may be different from the actual ratio.
Hereinafter, with reference to FIGS. 1-9, will be described in detail the chemical solution administration device according to the first embodiment. 1 to 8 are diagrams for explaining the structure of each part of the drug solution administration device according to the present embodiment.
Chemical dosing device according to the present embodiment is configured to insulin as the chemical as a portable insulin administration device 100 for feeding into the body of a diabetic patient who is the user. In the following description, the liquid medicine administering device as insulin dispensing device 100.
As shown in FIG. 1, the insulin dispensing device 100 includes a liquid feed body portion 10 for liquid feed operation for feeding insulin, the drug solution into a living body and performs various operation instructions with respect to liquid transfer body 10 It includes a remote control 20. Hereinafter, detailed configuration of each part of the insulin dispensing device 100.
As shown in FIG. 2, liquid feed body 10 is provided with a cannula 113 or the like that are placed in the body of the user, an injection unit 11 which is attached to the living body of the user drives the members necessary for liquid transfer operation etc. extruding mechanism 143 to be described later is used when sending a chemical solution feeding reuse unit 13 as well as insulin is filled in the drug solution reservoir 141 and the drug solution reservoir 141 is filled includes a drive mechanism 131 or the like to produce a driving force a liquid feed portion 12 comprising a liquid feed disposable unit 14 includes, a has.
Injection unit 11 and the liquid feed section 12 is configured to be coupled isolation. The user, for example, during bathing or the like, the injection unit 11 remains attached to the living body, a liquid feed portion 12 comprising insulin or drug solution reservoir 141 has been filled electrical and mechanical mechanism from the injection unit 11 To separate. By performing this task, it is possible to prevent that the insulin in the liquid medicine reservoir 141 is warmed and, that liquid wets and adheres to the electrical and mechanical mechanism within feeding portion 12.
The liquid feed reuse unit 13 and the liquid supply disposable portion 14 is configured to be coupled isolation. After use for a predetermined period, when the exhausted insulin or the like in the drug solution reservoir 141, to separate the liquid feed reuse unit 13 and the liquid supply disposable portion 14, the liquid supply disposable portion 14 in the disposable (disposable), new it can be replaced with. On the other hand, the liquid feed reuse unit 13 like a motor 136 and gears 137 to be described later, a relatively expensive component replacement frequency is smaller than the component to be mounted on the liquid feed disposable unit 14 is mounted. Such a relatively expensive components and components which are discarded after use in a predetermined period by respectively mounted to different housings, relatively expensive reusable equipped with a component in the liquid feed reuse unit 13 and by, it is made possible to reduce the costs associated with production cost and use of the device. It will be described each configuration below.
First, the injection unit 11 will be described. Injection unit 11, as shown in FIG. 2 or the like, the injection main body (also referred to as a cradle) 111, a bonding unit 112 to paste the implant body 111 to the living body of the user, protrudes from the injection main body 111, the body Referring cannula 113 is placed, it is placed on the implant body portion 111, a support member 114 for supporting the cannula 113, a magnet 115 (FIG. 3 used in the detection of the connection between the injection part 11 and the liquid supply portion 12 to the ), and the have.
As shown in FIG. 2, the injection main body portion 111 includes a plate-shaped mounting portion 111a, a vertical wall portion 111b which launched the part of the outer peripheral edge of the mounting portion 111a, a. As shown in FIG. 4 (A) ~ (C), the mounting portion 111a, the cannula 113 can be inserted through hole 111c is formed.
Further, as shown in FIG. 2, the vertical wall portion 111b, as an engaging portion for maintaining the mechanical connection state between the second housing 145 of the liquid supply disposable portion 14 to be described later, toward the opposing surface and projecting protrusions 111d, and the through hole 111e, is formed. The concatenation is slid relative to the second housing 145 to the injection body portion 111 of the liquid supply disposable portion 14, the projection 111d is fitted outwardly to form a groove 145c of the second housing 145. Further, the through hole 111e, the hook portion 145d formed in the second housing 145 is hooked. Incidentally, the second housing 145 to connecting and separating if the injection main body 111 and the liquid supply disposable portion 14, the shape of the engaging portion is not limited to the shape described above.
As shown in FIG. 3 and FIG. 4 (A) ~ (C), attachment unit 112 is constituted by a substantially rectangular sheet-like member. Pasting unit 112, the mounting portion 111a of the injection main body portion 111, the adhesive on the surface opposite to the surface on which rises vertical wall portion 111b is added. Pasting unit 112, by using the sticking part 112 itself of the adhesive, it is made possible to paste the injection portion 11 to the living body of the user. Note that the surface provided with an adhesive which at the attachment unit 112 is attached to a living body, using a removable release paper or the like which covers and protects the sticking part 112, the bonding unit 112 is attached to the careless it may be prevented.
The cannula 113 is punctured to the biological, used a chemical solution such as insulin from the chemical solution reservoir portion 141 for introduction into a living body. As shown in FIG. 4 (A), the cannula 113 has a portion and a portion in the portion of the truncated cone shape formed continuously in the cylindrical shape of the cylindrical shape, parts and portions of the frustoconical cylindrical lumen circulating insulin are formed in succession on. The cannula 113 is provided with the above-mentioned shape, and configured with a shape like a so-called funnel. Of course, the cannula 113, if introducing a chemical from the chemical reservoir 141 to the living body, the shape is not limited to the above.
The support member 114, as shown in FIG. 4, the connection port 114b comprising a base 114a for supporting the cannula 113, the lumen feeding tube 142 of the liquid supply disposable portion 14 (see FIG. 7) is inserted, a cap 114c mounted so as to cover the connection port 114b, and the lid member 114d mounted on the upper surface of the base portion 114a (a surface of the mounting surface of the injection main body portion 111 opposite), the base 114a and the lid member 114d and a, and a seal member 114e is provided between the.
The base 114a is a portion serving as a base of the support member 114 is constituted by a substantially cylindrical shape in this embodiment. The base 114a is provided with an internal space 114f for installing the cannula 113 as shown in FIG. 4 (C) or the like, such that the internal space 114f can support the cannula 113 comprises a funnel-shaped to fit the shape of the cannula 113 It is configured so as.
The connection port 114b is at the base 114a as shown in FIG. 4 (A) or the like, extends in the direction intersecting the axis of the cylindrical shape having the cannula 113. And the lumen of the connection port 114b, the inner space 114f of the base portion 114a is communicated.
Cap 114c is that it is possible to plugging the liquid feed tube 142 of the liquid supply disposable portion 14 to be described later, is formed of a material that can be kept liquid-tight between the connecting port 114b and liquid feed pipe 142 preferably, such materials include for example, rubber or the like.
As shown in FIG. 4 (C), the lid member 114d has a function to press the seal member 114e. The lid member 114d, the axial direction coaxially with the cannula 113, the needle N of the puncture device M to be described later can be inserted through holes are formed.
Seal member 114e, together are configured to be able to plugging the needle N of the puncture device M, to prevent leakage of the insulin from the through hole of the lid member 114d after removal of the piercing tool M. As the material of the seal member 114e, like for example rubber or the like. Incidentally, puncture device M shown in FIG. 4 (A), (B) illustrates omitted the detailed structure.
Placement into the body of the cannula 113, for example, the needle N that can be inserted into the lumen of the cannula 113 which is supported by the support member 114, in the direction the needle N and cannula 113 projects from the mounting portion 111a supported a biasing member for applying a biasing force to member 114 and the needle N (not shown), it can be carried out by the piercing device M comprising a.
Specifically, first, the user attaches the injection main body 111 in its body surface by bonding unit 112. Then, through the through hole formed in the lid member 114d of the supporting member 114 by inserting a needle N, the lumen of the cannula 113 such that the needle N is inserted, attached to the support member 114 to the puncture device M. Next, as shown in FIG. 4 (A), mounted on part 111a mounting the puncture tool M. Next, as shown in FIG. 4 (B), by the urging force of the urging member provided in the puncture device M, the supporting member 114 and the needle N in the direction of the needle N and cannula 113 projects from the mounting portion 111a injection. At this time, the supporting member 114 is fixed to the portion 111a mounting by hanging fastening mechanism (not shown). Next, as shown in FIG. 4 (C), in a state where the supporting member 114 attached to the mounting portion 111a, remove the puncture device M comprising a needle N from the mounting portion 111a. Thus, the cannula 113 is placed in the living body.
Incidentally, the cannula 113 and support member 114 herein, when circulation portion having a flow passing the chemical solution channel corresponds to the first flow portion among them.
Magnet 115 is used to detect that the liquid feed portion 12 is connected to the injection part 11. Attachment detector 139 used to detect a connection between the liquid feed portion 12 and an injection portion 11 with the magnet 115 as described later on feeding disposable portion 14 of the liquid feed portion 12 is provided. Attachment detector 139 in this embodiment is constituted by a reed switch, it is installed in the first housing 135 of liquid transfer reuse unit 13 to be described later. Reed switch is arranged so as to be positioned above the head of the magnet 115 when fitted with a liquid feed section 12 to the injection unit 11. Reed switch is spaced apart metal plate inside the glass tube, the magnet 115 is a metal plate contact each other by being positioned overhead in the vicinity of the reed switch. Since the attachment detector 139 which is connected to the first control unit 134 electrically to be described later, the liquid feed section 12 is mounted on the injection unit 11 by detecting the presence or absence of contact of the metal plate attachment detection section 139 dolphin whether it can detect.
It will now be described feeding reuse unit 13. As shown in FIGS. 2 and 5, the liquid feed reuse unit 13 includes a drive mechanism 131 for driving the member required to perform liquid transfer operation, a rotation detector 132 for detecting the rotational movement of the drive mechanism 131, a first communication unit 133 for communicating with remote control 20, the first control unit 134 for controlling the drive mechanism 131 and the like first communication unit 133, a first housing 135 for holding the liquid feed portion to the injection part 11 having an attachment detector 139 which is used to detect the 12 mounting the. The portion surrounded by the dotted line X in FIG. 5 represents the part which is attached to the liquid feed reuse unit 13, a portion surrounded by a one-dot chain line Y represents a component which is attached to the liquid feed disposable portion 14. Further, in FIG. 5, it is not illustrated for simplicity first housing 135 for ease of understanding.
As shown in FIG. 5 or the like, the drive mechanism 131 includes a motor 136 having an output shaft to cause rotation by electric power from the battery 144 of the liquid supply disposable portion 14, and therefore the rotation caused by the motor 136 feeding having a gear group 137 for transmitting the extruding mechanism 143 of the disposable unit 14, a motor driver 138 for controlling the operation of the motor 136, the.
Motor 136 causes a rotary motion of the driving force required to move the sliding portion 146 of the pushing mechanism 143 in the output shaft. Motor 136 utilizes a stepping motor in this embodiment. Stepping motor, the rotation of the motor is stopped at the time of short-circuit, preferred in terms such as the safety. However, it is possible to generate a driving force by rotating, a specific embodiment of the motor 136 as long as the size that can be mounted on a mobile capable insulin dispensing device 100 is not limited thereto. Motor 136, also for example DC motors other than the stepping motor may be an AC motor or the like.
The motor driver 138 is electrically connected to the first control unit 134 to be described later, forward rotation of the motor 136, controls the operation of such reverse rotation, and stop.
Gear group 137, the power of rotation resulting from the motor 136 is used to transmit to the extrusion mechanism 143 for pressing the drug solution reservoir 141. Gear group 137 in the present embodiment, as shown in FIG. 5, a first gear 137a connected to the motor 136, a second gear 137b meshing with the adjacent gears, the third gear 137c, a fourth gear 137d.
The first gear 137a is provided with one or teeth that mesh with the adjacent gears. In contrast, the second gear 137b, the third gear 137c and the fourth gear 137d is provided side by side two teeth that mesh with the adjacent gears in the axial direction of rotation of the gear.
The second gear 137b are disposed adjacent to the first gear 137a and the third gear 137c in a direction (vertical direction in FIG. 5) that intersects the rotational axis of the first gear 137a.
The third gear 137c is in a direction intersecting the rotational axis of the first gear 137a (vertical direction in FIG. 5) adjacent to the second gear 137b, and the fourth gear 137d disposed.
The fourth gear 137d is disposed adjacent to the fifth gear 148 of the third gear 137c and the liquid supply disposable portion 14 (vertical direction in FIG. 5) direction intersecting the rotational axis of the first gear 137a.
Gear group 137 and the fifth gear 148 is constituted by a spur gear. However, if transmit power by the rotation of the motor 136 to the extrusion mechanism 143 is not limited thereto. Also, gear group 137 and the fifth gear 148 is set to the number of gears and the number of teeth or the like can be decelerated to a value obtained by setting the torque from the motor 136. However, if realize a desired speed reduction ratio in a given space, the specifications of such number of gears and the number of teeth is not limited to the above. Further, the input side of the gear in the present embodiment corresponds to the first gear 137a, the rotation direction of the output side of the gear corresponding to the fifth gear 148 may be the same rotational direction, it may be different. Further, the material of the gear group 137 is not particularly limited as long transmit the output from the output shaft 136a of the motor 136 to the extrusion mechanism 143 may include a resin material such as metal or plastic.
The motor 136 is connected via the first gear 137a and the coil springs of gears 137 (not shown).
Rotation detector 132, as shown in FIG. 5, the blocking member 132a disposed on the motor 136 side of the first gear 137a, arranged light emitting portion 132b and a light receiving to face each other between the blocking member 132a having a light sensor, the comprising parts 132c.
Blocking member 132a, as shown in FIG. 6, a substantially fan shape as the blades of fan and plurality at regular angular intervals in the circumferential direction of the first gear 137a. When detection light emitted from the light emitting portion 132b of the optical sensor passes through the portion that is not provided with the vane shape of the blocking member 132a, light-receiving unit 132c to receive the detection light S. Conversely, the detection light S from the light emitting portion 132b is blocked by the blade shape of the blocking member 132a, light-receiving portion 132c would not receive the detection light S. Since the blade shape of the blocking member 132a is provided at regular intervals, the rotational speed of the output shaft of the motor 136 based on the time interval that has received the detection light S (frequency) is detected. Reduction ratio by gear group 137 and the fifth gear 148, and the screw pitch and the like of the feed screw 147 of the pushing mechanism 143 is (not variable) that is fixed for the chemical liquid by detecting the rotation speed of the output shaft 136a of the motor 136 it is possible to detect the liquid feed amount. Detection region rotation detector 132 can be detected, for example, the rotation speed of the motor 136 is predetermined to be a like 60 ~ 300 rpm.
Incidentally, the shielding member 132a is being configured by providing three fan-shaped blade shape in FIG. 6 or the like, if it is possible to switch the pass interrupting of the detection light S, number of sheets of blades shaped and the blade shape Figure but it is not limited to 6. Further, in the present embodiment, by detecting the rotational speed of the output shaft of the motor 136 has been sought feed rate by the rotation detection unit 132, the detection method of the liquid supply amount is not limited thereto. For example, it is also possible to determine the flow volume from the control signal sent to the motor 136. Although the detection of the rotational speed is using an optical sensor, not limited to the optical sensor if the detection of the rotation amount of the motor and may use a magnetic sensor or the like other than the above.
The first communication unit 133 includes an electronic device required for communication with the remote controller 20. The remote controller 20 has a second communication unit 202 is provided as described later, the first is the communication unit 133 and the short-range wireless communication BLE (Bluetooth (registered trademark) Low Energy) of the liquid supply reuse unit 13 using the communication it is configured to be able to transmit and receive information to and from each other Te.
The first control unit 134 includes a processing unit 134a as shown in FIG. 8, a storage unit 134b, and a time management section 134c, a. The first control unit 134, constituted by a known microcomputer, and performs overall control of components operating in liquid transfer part 12.
Processing section 134a, motor 136 constituting the drive mechanism 131, the first communication unit 133, executes the operations and instructions required for the operation of such rotation detecting unit 132. Processing unit 134a constitutes the like CPU.
Storage section 134b, and stores the rotational speed of the output of the motor 136 from the rotation detecting unit 132, liquid feed unit 12 stores information concerning whether the removed from the injection unit 11. Storage unit 134b is constituted by a RAM or ROM.
Time management section 134c are used to require during the A and time information or the like for detecting the like rotational speed of the motor 136. Date and time management section 134c is configured in such as real-time clock.
As shown in FIG. 2, the first housing 135, drive mechanism 131, the rotation detecting unit 132, and the upper surface 135a of the first communication unit 133, and a configuration such as the first control unit 134 covers the outer circumferential edge portion of the upper surface 135a It has a side wall 135b, which was launched in part, a. The upper surface 135a, a drive mechanism 131, the rotation detecting unit 132, first communication unit 133, and the like the first control unit 134 is attached, each operatively.
The first housing 135 has a configuration that allows the connecting and separating the liquid feed reuse unit 13 to the liquid supply disposable portion 14, a convex portion that protrudes from the inner surface of the side wall 135b inwardly (not shown). In the present embodiment, the first housing 135, although of a resin component such as plastic, if it has a certain degree of strength and the like, but is not limited thereto. Since the attachment detector 139 have been described above, a detailed description thereof will be omitted herein. Incidentally, the attachment detection section 139 corresponds to the connection detecting unit for detecting a connection between the cannula 113 and the support member 114 included in the liquid supply pipe 142 and the injection unit 11 included in the liquid feed section 12.
It will now be described feeding disposable portion 14. Feeding disposable unit 14 includes a liquid feed tube 142 which communicates with the drug solution reservoir 141 insulin-filled lumen of the provided implant portion 11 connecting port 114b and the drug solution reservoir 141 as shown in FIG. 5, an extrusion mechanism 143 for extruding are mechanically connected insulin in chemical reservoir 141 to liquid feed tube 142 to the drive mechanism 131, a battery 144 for supplying power to the drive mechanism 131 or the like, the second housing 145 for holding them and, the has.
Chemical reservoir 141 has a cylindrical shape. One end of the drug solution storage part 141, liquid feed pipe 142 is connected. The other end of the chemical solution reservoir portion 141 has an opening 141a is formed. The drug solution reservoir 141 and the sliding portion 146 of the pushing mechanism 143 to be described later from the opening 141a is inserted, the insulin is stored in a space partitioned by the chemical reservoir 141 and the slide portion 146.
Figure 7 (A), (B), the in the present embodiment, liquid feed pipe 142 is constituted by a metal capillary with a sharp end shape. As shown in FIG. 7 (A), when the connected while sliding the feeding portion 12 to the injection unit 11, as shown in FIG. 7 (B), the sharp tip of the liquid feed pipe 142 is injection portion 11 through the cap 114c, it is inserted into the lumen of the connecting port 114b. Incidentally, the liquid feed tube 142 in this embodiment Upon distribution unit including a flow path that circulates the liquid medicine from the liquid medicine reservoir 141, is connected detachably configured with cannula 113 and support member 114 included in the injection unit 11 among them It was hit in the second distribution part.
As shown in FIG. 5, the extrusion mechanism 143 includes a slide portion 146 which can advance and retreat in the internal space of the drug solution storage part 141, the sliding portion 146 is moved forward and backward I formed internal thread portion 146d and meshes with the slide portion 146 a feed screw 147, had the fourth gear 137d meshed with the drive mechanism 131 includes a fifth gear 148 which is connected to the feed screw 147, a.
Slide portion 146 meshes with the pushing member 146a capable advance and retreat in the drug solution reservoir 141 while keeping the sealing property so drug solution does not leak to the side of the slide portion 146 as shown in FIG. 5, a feed screw 147 internally threaded a feed plate 146b that part 146d is formed, has a connecting plate 146c for connecting the feed plate 146b and pushing member 146a, a.
Pushing member 146a is inserted through the opening 141a of the drug solution reservoir 141 to form a space for accommodating a drug solution in the internal space of the drug solution storage part 141. Pushing member 146a, as drug solution does not leak from the boundary between the inner wall surface of the cylindrical shape of the pushing member 146a and the drug solution reservoir 141, while engaged with the inner wall surface of the cylindrical, horizontal direction of the inner wall 5 back and forth to move to. The size of a housing space for a liquid medicine according to the position of the pushing member 146a at the drug solution storage part 141 (inner space of the drug solution reservoir 141) (volume) changes. Pushing member 146a is also or called pushers and pusher like.
Feed plate 146b is a hole provided in the plate shape, it is configured to form a female screw portion 146d that meshes with the external thread portion 147a of the screw 147 is sent to the hole.
Connecting plate 146c couples the feed plate 146b and pushing member 146a using two plates. However, connecting the feed plate 146b and pushing member 146a, if it is possible to operate the two together, the shape of the connecting plate 146c is not limited thereto. Connecting plate 146c may be constituted by a hollow shape that fits in the inner wall and the total circumference of the cylindrical shape of the well for example chemical reservoir 141 in addition to the above.
Feed screw 147 has a common external thread shape, a portion thereof is engaged with the female screw portion 146d of the feed plate 146b. Head in the example cross groove of the feed screw 147 is provided, meshing with a portion of the fifth gear 148 to be described later.
The fifth gear 148, the second housing 145, in a state of being connected to liquid feed reuse unit 13 and the liquid supply disposable portion 14 are disposed at a position meshing with the fourth gear 137d.
The fifth gear 148, as shown in FIG. 5, and the teeth of the gear, provided at an end of the rotary shaft as the center of rotation of the gear (engage) the groove and meshing of the screw head of the feed screw 147 has a bit, the.
Bit of the fifth gear 148, clamping the common screw driver is configured similarly to the tip shape of the (screw driver, also referred to as a screwdriver or the like). Bit of the fifth gear 148 with the structure described above, mesh with recessed grooves of the screw head of the feed screw 147, which transmits the power generated by the rotation of the fifth gear 148.
Further, since the tooth and the axis of rotation of the fifth gear 148 is similar to the known shape, description thereof is omitted.
Feed screw 147 and the fifth gear 148 is rotatably mounted on the second housing 145.
With the rotation of the fourth gear 137d constituting the driving mechanism 131, the fifth gear 148 rotates, the feed screw 147 is rotated. Feed plate 146b is rotated in the rotational direction of the feed screw 147 is regulated, with the rotation of the feed screw 147, the feed plate 146b is sent to move along the axis of the spiral shape of the male thread portion of the screw 147. Pushing member 146a coupled to the feed plate 146b through the connecting plate 146c is moved through the liquid medicine reservoir 141 with the movement of the feed plate 146b. The extrusion member 146a is moved in a direction (direction in which the volume of the accommodation space is reduced) to be pushed into the drug solution reservoir 141, insulin housing space formed by the extrusion member 146a chemical reservoir 141 to liquid feed pipe 142 It is fed. Incidentally, even when the cause blockages in liquid feed pipe 142 and the cannula 113, the connecting plate 146c is motor 136 is enabled a predetermined number of times rotation by flexing predetermined amount.
Battery 144, when ligated to feeding reuse unit 13 and the liquid supply disposable unit 14, the motor 136 in the liquid feed reuse unit 13, the rotation detecting unit 132, first communication unit 133, the first controller 134 and the motor supplies power to each unit is electrically connected to the driver 138. In the present embodiment, the battery 144 is constructed by connecting the two batteries in series. However, the number of batteries in series or parallel or a method of connection, as long as it can supply power to each unit is not particularly limited.
As shown in FIG. 2, the second housing 145, the drug solution reservoir 141, liquid feed pipe 142, pushing mechanism 143, a bottom surface 145a for placing the structure such as a battery 144, launched outer peripheral edge portion of the bottom surface 145a ; and a side wall 145b.
The second housing 145 is configured to be coupled separated injection main body 111. Specifically, in this embodiment, the side walls 145b, the through holes formed in the groove 145c can be fitted into the projection 111d formed on the injection main body 111 as shown in FIG. 2, the injection main body 111 a hook portion 145d caught on 111e, are formed. When sliding the second housing 145 to the injection main body 111, the protrusion 111d of the injection main body portion 111 and the groove 145c of the second housing 145 is fitted, the through-hole 111e of the injection main body portion 111 of the second housing 145 hook portion 145d is caught. Thus, a state where the second housing 145 is coupled to the injection main body 111.
The second housing 145 has a recess (not shown) meshing with the protrusion provided on the side wall 135b of the first housing 135, thereby being connected detachably configured on the first housing 135. By connecting the first housing 135 and the second housing 145, an extrusion mechanism 143 mounted on a drive mechanism 131 mounted on the first housing 135 the second housing 145 is mechanically connected. The motor 136 is mounted to the first housing 135, the rotation detecting unit 132, first communication unit 133, the first controller 134 and the motor driver 138 is electrically connected to the battery 144 mounted on the second housing 145 It is.
In this embodiment, the second housing 145, although of a resin component such as plastic, if it has a certain degree of strength, etc., the material similar to the first housing 135 is not limited thereto.
Next, a description will be given of the remote controller 20. As shown in FIG. 1, the remote controller 20 includes a remote controller main body portion 201, a first communication unit 133 capable of wireless communication with the second communication unit 202, a second controller 203 for generally controlling the insulin dispensing device 100 , a monitor 204 provided in the remote controller main body portion 201 (corresponding to the notification unit), and can be accepted button 205 instruction contents from the user, and a battery 206 for supplying power, to each part of the remote controller 20 .
Remote control main body portion 201 is configured to a size that the user can have in one hand, and constitutes a relatively lightweight plastic parts such as plastic.
The second communication unit 202 includes an electronic device required for communication with the first communication unit 133 of the liquid supply body portion 10. The second communication unit 202, in the present embodiment by using a communication to communicate at low power is capable of short-range wireless communications technology BLE (Bluetooth (registered trademark) Low Energy), the liquid feed body portion 10 and it is configured to transmit and receive information to and. However, if it is possible to perform wireless communication with the liquid transfer body 10, the communication method is not limited to BLE.
The second control unit 203 includes a processor 203a, as shown in FIG. 8, a storage unit 203b, a. The second control unit 203, constituted by a known microcomputer, and performs control of the entire components operating the remote control 20. Processor 203a performs operations and instructions required second communication unit 202, the operation of the monitor 204 or the like. Processor 203a constitutes the like CPU.
Storage unit 203b stores a program necessary for controlling the second communication section 202 and the monitor 204. Storage unit 203b is constituted by a RAM or ROM. For example, if the storage unit 203b is composed of RAM and ROM, processor 203a reads and executes various programs stored in advance in the ROM in the RAM, respectively, to implement the operation of the liquid feed operation and the like. Since monitor 204, button 205, and battery 206 has the same configuration as those known, not shown and described in FIG.
Next, a description will be given of usage examples of the insulin dispensing device 100.
First, the user prior to use of the insulin dispensing device 100, the injection unit 11 is attached to a living body, as described above, take action to indwelling cannula 113 into the body using a puncture device M.
Further, the user, prior to use of the insulin dispensing device 100, and integrated by connecting feeding reuse unit 13 and the liquid supply disposable portion 14 to form a liquid feed section 12. Then, the user operates the remote controller 20, and instructs priming (first priming) to fill the insulin into the liquid feed tube 142 of the liquid supply disposable portion 14. Receiving an instruction from the remote controller 20, the first control unit 134 operates the driving mechanism 131 to move the sliding portion 146 of the pushing mechanism 143 by a predetermined amount. Thus, insulin contained within the drug solution reservoir 141 is fed to the liquid feed pipe 142, the insulin is filled in liquid feed pipe 142.
Then, linking the liquid supply portion 12 to the injection unit 11.
Next, the user operates the remote controller 20, and instructs priming (second priming) as insulin is filled in the lumen of the cannula 113.
Next, the user operates the remote controller 20, bolus mode insulin continuously the feeding amount of insulin per Besarumodo and unit time to feed temporarily increases at a constant amount for feeding the like and a feeding mode of appropriately selected, perform liquid delivery of insulin into the body.
Next the operation of the case where abnormality is found in the insulin dispensing device 100. Figure 9 is a flowchart showing the specific cause of the failure in the insulin dispensing device according to a first embodiment of the present invention. It assumed to be described the case where a failure occurs in the following.
Rotation detector 132 having a sensing function determines whether it is within the range of the detection area detected outputs are set (ST1). If the output of the rotation detecting unit 132 is included in the detection region (ST1: NO), the subsequent operation is not performed.
If the motor 136 has stopped most rotated for some reason, the output value may be below the detection region. If the output of the rotation detector 132 is out of the detection area (ST1: YES), the first control unit 134 stops the liquid feed by the operation of the drive mechanism 131 by sending a signal to the driving mechanism 131 (ST2).
The first controller 134, the time of feeding the insulin feeding tube 142 in the drug solution reservoir 141 by pushing mechanism 143 to operate the driving mechanism 131 in the rotation direction of the reverse (ST3). The rotation detecting unit 132, the output value of the rotation detection unit 132 in the reverse direction of rotation determines whether out of the detection region of the driving mechanism 131 and the time of feeding insulin (ST4).
Assuming the case where abnormality is present in the motor driver 138 and the motor 136, the forward rotation and reverse rotation of either be driven mechanism 131 can not operate sufficiently, the output of the rotation detection unit 132 indicates a value out of the detection area It will be. Therefore, the first control unit 134 when the output of the rotation detector 132 is out of the detection area: in (ST4 YES), the cause of the failure to signal that the motor driver 138 and motor 136, etc. (ST5). Failure in the present embodiment informs the user by displaying on the monitor 204 of the remote controller 20.
If the output of the rotation detecting unit 132 on the opposite is included in the detection region (ST4: NO), if the reverse motor 136 is rotated and when the feeding drive mechanism 131 and pushing mechanism 143 that is operating normally Become. In this case, by eliminating the deflection of the connecting plate 146c motor 136 can be reversely rotated. From this result, no failure in the drive mechanism 131 such as a motor 136, can be considered as the cause of the fault exists in the components constituting the flow path, such as a liquid feed tube 142 and cannula 113 otherwise. In the above case, the first control unit 134 is instructed to display a notification indicating that the blockage has occurred in the monitor 204 (ST6).
Next, functions and effects will be described in this embodiment. Insulin dispensing device 100 according to the present embodiment, detected by the rotation detection unit 132 outputs to stop feeding liquid from the liquid feed tube 142 when the out of the detection region. Then, the output of the rotation detection unit 132 during the time of feeding of rotating the motor 136 in the rotation direction of the reverse, or drive system components such as the cause of failure the motor 136, liquid feed pipe 142 or cannula 113 and and specifies whether the obstruction, such as the support member 114. If the cause of the failure as described above is in the drive system components such as the motor 136 can not be a motor 136 or the like is normally rotate even rotated in reverse. On the other hand, if it's the like liquid feed pipe 142, the drive mechanism 131 when the reverse rotation can operate normally. Therefore, with the structure described above, whether the drive system components has failed, or the like liquid feed pipe 142 can identify whether the are closed.
Furthermore, the insulin dispensing device 100, a blockage or malfunction, or liquid feed pipe 142 such as the drive mechanism 131 and displayed on the monitor 204 can prompt the replacement of parts to the user.
Figure 10 is a flowchart illustrating a case of specifying a failure cause in the insulin dispensing device according to a second embodiment of the present invention. If in the first embodiment the output of the rotation detector 132 in a state in which the reverse rotation of the motor 136 is not deviated from the detection area, it was configured to display on the monitor 204 to a blockage has occurred, the following It can also be configured to. Incidentally, the flow of the determination if the second embodiment to identify the fault and the only different, for configurations such as parts constituting the insulin dispensing device is the same as the first embodiment, the description thereof is omitted.
First, the rotation detecting unit 132, the output of the first rotation similar to the embodiment detector 132 is determined whether or not out of the detection region (ST1). If the output is out of the detection region (ST1: YES), the first control unit 134 stops the liquid feed by rotation of the drive mechanism 131 by sending a signal to the driving mechanism 131 (ST2). The first controller 134 displays the removing the liquid feed section 12 and a liquid feed reuse unit 13 and the liquid supply disposable portion 14 from the injection unit 11 on the monitor 204 (ST3).
The first controller 134 refers to the storage unit 134b, to determine whether liquid feed unit 12 is detached from the injection unit 11 (ST4). If liquid feed unit 12 has not been removed from the injection unit 11 (ST4: NO), maintains the state notification is displayed in the removal of the monitor 204. Further, in order to encourage the removal to the user with reference to the information by the time management section 134c in addition to the above, if not removal even after a predetermined time has elapsed from the start of the broadcast, and also using an alarm using You may be prompted to remove the person.
If liquid feed unit 12 is detached from the injection unit 11 (ST4: YES), the first control unit 134 rotates in the opposite direction to the time of feeding a motor 136 by sending a signal to the driving mechanism 131 (ST5 ). The first control unit 134, the output of the rotation detecting section 132 determines whether or off the detection area (ST6). If the output is out of the detection area (ST6: YES), the first control unit 134 determines that there is an abnormality in the drive system components such as the motor 136, to notify the user by displaying to that effect on the monitor 204 (ST7).
If the output of the rotation detecting unit 132 by eliminating the deflection of the connecting plate 146c contrary to the above is included in the detection region (ST6: NO), the first control unit 134 temporarily stops the operation of the driving mechanism 131, again driven operating the mechanism 131 in the rotation direction of the same manner as when feeding (ST8). Then, the first control unit 134 outputs a rotation detection unit 132 in this state to confirm whether out of the detection region (ST9). Incidentally, the detection region of the output of the rotation detection unit 132 in the same rotational direction as the liquid feeding time, may be different from the detection region of the output of the rotation detecting section 132 in the liquid feed when the reverse rotation direction, either the same good.
If the output is out of the detection region (ST9: YES), because they are removed from the liquid feed portion 12 is already injected part 11, an injection unit 11 to the anomaly is not included in the liquid feed section 12, constituting the flow path it can be considered to be a blockage in the liquid feed pipe 142 has occurred. In this case, the first control unit 134 determines that the failure to feed liquid disposable unit 14 which includes a liquid feed pipe 142 has occurred, the display to inform the user of the fact that the monitor 204 to replace the liquid supply disposable portion 14 to (ST10).
If the sensor output of the rotation detection unit 132 contrary to the above is included in the detection region (ST9: NO), the cause of failure is not the feeding tube 142 among the components constituting the flow path, injection detached portion 11 it can be considered a cannula 113 contained. In this case, the first control unit 134 causes the failure to notify a replacement display to the user the fact that the injection unit 11 on the monitor 204 includes a cannula 113.
As described above, in the second embodiment is rotated again motor 136 in the same rotational direction as when feeding in the case where the output at the time of reversely rotates the motor 136 included in the detection region. Then, the output of the rotation detection unit 132 at that time, and configured to determine whether to replace or injection unit 11 to replace the liquid supply disposable portion 14. Therefore, than the first embodiment can this to determine the cause of the failure in more detail, it is possible to inform more detailed information by the user to replace only the failed component rather than the whole device.
The first control unit 134, in a state in which the cannula 113 and the support member 114 and the liquid supply pipe 142 was confirmed to be separated through the attachment detector 139, one of the cannula 113 and the support member 114 or liquid feed pipe 142 it is determined that the blockage has occurred in. Feeding unit thus includes a liquid feed tube 142 12, because that is separate from the injection unit 11 including the cannula 113 punctures the living body, that drug solution into and out of the living body to determining the cause of the fault rather, it is possible to prevent the influence on the living body.
The present embodiment is not limited only to the embodiments described above, various modifications are possible within the scope of the appended claims. In the above embodiments it has been described to display to that effect on the monitor 204 when a component failure such as the driving system parts and liquid feed pipe 142, such as a motor 136 can be identified, but is not limited thereto. By the pattern of such alarms frequency and melody instead of displaying the fault cause to the monitor 204 in addition to the above, whether the cause of failure there in parts such as the one feeding tube 142 is in the components such as the motor 136 to the user it may be notified. Further, in the embodiment described above, the drug solution administration device for administering insulin has been described as an example, but is not limited thereto. The chemical solution to be administered, analgesics, anti-cancer drugs, HIV drugs, iron chelating agents, and may be other various chemicals such as pulmonary hypertension treatment.
This application is based on Japanese Patent Application No. 2016-188563, filed September 27, 2016, the disclosure of which is hereby incorporated by reference in its entirety.
10 feeding the main body portion,
11 injection unit,
113 cannula (distribution unit, the first flow portion),
114 support member (circulation portion, a first flowing part),
12 feeding section,
13 feeding reuse part,
14 feeding disposable part,
100 insulin administration device (solution administration device),
131 drive mechanism,
132 rotation detector (detection unit),
132a blocking member,
132b the light-emitting portion,
132c light-receiving unit,
134 control unit,
The first control unit 134a,
136 motor,
138 motor driver,
139 mounting detector (connection detection unit),
141 drug solution storage part,
142 liquid feed pipe (circulation portion, the second flowing part),
203 second control unit,
204 monitor (notification unit).
A distribution section having a distribution is to channel the liquid medicine,
A drug solution reservoir for storing the drug solution to be sent to the distribution section communicates with the circulation unit,
A drive mechanism having a motor for generating a driving force for feeding the liquid medicine stored in the chemical reservoir to said flow path,
A detector for detecting the operating state of the drive mechanism in the setting detected regions,
Controlling said drive mechanism, and a control section for performing determination based on an output from the detecting unit,
Wherein, when the output from the detector is not included in the detection region, wherein stopping the liquid feed from the distribution unit, and rotates the motor in the rotating direction during the reverse feeding It determines that the output of the detection unit in a state in which there is clogging in the circulation unit if included in the detection region is occurring, when the output is a fault in the drive mechanism to be included in the detection area has occurred determining, chemical dosing apparatus.
The circulation unit includes a first flowing part which is punctured in the living body including a cannula having a said flow passage for feeding the liquid medicine to the living body, from being configured to be connectable separated from the first flow part and the drug solution reservoir and a second flow portion constituting the flow path to the first flow section,
Wherein the control unit, the second flowing part is separated from the first flow section, and, when it is determined that the closed to the circulation unit has occurred, rotating the motor in the same rotational direction as when feeding is allowed, the said output by the detection unit when the second flow portion is separated from the first circulation unit judges that the closed to the first flow section if included in the detection region is occurring, the detector it is determined that the clogging in the second circulation unit to be included in the region is occurring, chemical delivery device of claim 1.
Further comprising a connection detecting unit and the first flow portion and said second flow section detects whether or not it is connected,
Determining that the control unit is in a state where it was confirmed that the first flow portion through the connection detection unit and the second flow portion is separated, it closed on the first circulation unit or the second circulation unit has occurred to, chemical delivery device of claim 2.
Further comprising a notification unit for notifying the occlusion in failure or the distribution part of the drive mechanism, the chemical solution administration device according to any one of claims 1 to 3.
PCT/JP2017/030604 2016-09-27 2017-08-25 Liquid medicine administration device WO2018061562A1 (en)
JP2016-188563 2016-09-27
JP2016188563 2016-09-27
CN201780042704.7A CN109451731A (en) 2016-09-27 2017-08-25 Liquid device is administered
WO2018061562A1 true WO2018061562A1 (en) 2018-04-05
ID=61760448
PCT/JP2017/030604 WO2018061562A1 (en) 2016-09-27 2017-08-25 Liquid medicine administration device
CN (1) CN109451731A (en)
WO (1) WO2018061562A1 (en)
JP2002113099A (en) * 2000-08-16 2002-04-16 Smiths Group Plc Syringe pump
JP2009521998A (en) * 2005-12-30 2009-06-11 メドトロニック・ミニメッド・インコーポレーテッド Method and apparatus for detecting occlusions in a portable infusion pump
2017-08-25 WO PCT/JP2017/030604 patent/WO2018061562A1/en active Application Filing
2017-08-25 CN CN201780042704.7A patent/CN109451731A/en unknown
CN109451731A (en) 2019-03-08
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