CN116672046A - Implantation instrument and implantation system - Google Patents

Abstract

The invention relates to an implantation instrument and an implantation system, the implantation instrument comprising: a tunnel forming member for piercing the site to be implanted to form a cavity at the site to be implanted; the carrying piece is movably connected with the tunnel making piece and is used for detachably connecting the nerve stimulator so as to carry the nerve stimulator into the cavity; and an auxiliary dismounting piece which is movably connected with the carrying piece and is used for separating the carrying piece from the nerve stimulator. The invention has the advantages that: when the implantation instrument is used for implanting the nerve stimulator, only a small wound is needed to be cut on a living body to allow the tunneling member to be inserted, so that the damage to the living body is small and the residual scar is small. Because the nerve stimulator is carried to the cavity by the carrying piece, the position of the nerve stimulator can be quickly adjusted by controlling the moving distance of the carrying piece so as to accurately send the nerve stimulator to the target position, and the position of the nerve stimulator does not need to be adjusted by other auxiliary tools, so that the operation time can be shortened.

Description

Implantation instrument and implantation system

Technical Field

The invention relates to the technical field of medical instruments, in particular to an implantation instrument and an implantation system.

Background

Currently, electrical stimulation is typically applied to a target nerve at a target location using a nerve stimulator. In using the neural stimulator, the neural stimulator is required to be entirely implanted or semi-implanted in the living body so that the neural stimulator reaches a target position, thereby applying electrical stimulation to a target nerve on a neural tissue of the living body.

In the conventional art, the method for implanting the neural stimulator into the living body is as follows: a doctor firstly cuts a wound on a living body, then separates fascia and muscle tissues by using surgical tools such as a fascia knife or an ablation forceps and the like to form a channel in the living body for implantation of the nerve stimulator, and then plugs the nerve stimulator into the channel by hand and adjusts the position of the nerve stimulator in the channel, so that the nerve stimulator is placed at a target position, and the nerve stimulator can stimulate target nerves at the target position. However, this implantation method requires making a large incision in the living body for the physician to operate, which causes a large injury to the living body, leaving a large scar, and the physician also adjusts the position of the neurostimulator within the passageway with the aid of an auxiliary tool, resulting in a long surgical time.

Disclosure of Invention

Based on this, it is necessary to provide an implantation instrument in view of the above-mentioned problems. The nerve stimulator is implanted by using the implantation instrument, so that the wound on the organism is smaller, the left scar is smaller, and the operation time can be shortened.

In order to solve the problems, the invention provides the following technical scheme:

an implantation instrument for implanting a neurostimulator, comprising: a tunnel-making member for piercing a site to be implanted so that the site to be implanted forms a cavity; a carrying member movably connected to the tunneling member for detachably connecting the neurostimulator to carry the neurostimulator into the cavity; and an auxiliary disassembly piece which is movably connected with the carrying piece and is used for separating the carrying piece from the nerve stimulator.

In one embodiment, the tunnel-making member includes a guide portion and a tunnel-making portion, the tunnel-making portion is provided at a distal end of the guide portion in a longitudinal direction thereof, and a distance between both sides of the tunnel-making portion in a width direction thereof is gradually reduced along a direction in which the guide portion faces the tunnel-making portion.

In one embodiment, the tunnel-forming portion has a wedge-shaped plate shape.

In one embodiment, the guide portion is provided with a first guide groove extending toward the tunnel-making portion, and the carrying member is disposed in the first guide groove in a penetrating manner.

In one embodiment, the carrying member is provided with a second guide groove extending toward the tunnel-making portion, and the auxiliary dismounting member is arranged in the second guide groove in a penetrating manner.

In one embodiment, the tunnel forming member further includes a supporting portion, and the supporting portion is protruded from the guiding portion along a width direction of the guiding portion.

In one embodiment, the mounting member includes a protective cover and a mounting portion for detachably connecting the nerve stimulator, the mounting portion is located between the protective cover and the tunnel-making member, and the protective cover is provided on the mounting portion.

In one embodiment, the carrying member further comprises an extension portion movably connected to the tunnel-making member, and the protective cover is provided at a distal end of the extension portion in a longitudinal direction.

In one embodiment, the auxiliary dismounting member is detachably connected to the carrying member.

The present invention also provides an implantation system comprising: the implantation instrument described above; and the nerve stimulator is detachably arranged on the carrying piece and is positioned between the carrying piece and the tunnel making piece, and the projection of the carrying piece covers the projection of the nerve stimulator along the direction of the carrying piece towards the tunnel making piece.

In one embodiment, the nerve stimulator comprises a stimulator body and an anti-drop part, wherein one end of the anti-drop part is connected with the stimulator body, and the other end of the anti-drop part is movable relative to the stimulator body and can partially protrude out of the outer peripheral surface of the stimulator body; when the nerve stimulator is arranged on the carrying piece, the anti-falling part is folded and folded on the outer peripheral surface of the stimulator body; after the nerve stimulator is separated from the mounting member, the drop-off preventing portion protrudes from the outer peripheral surface of the stimulator body.

The invention has at least the following beneficial effects:

when the implantation instrument provided by the invention is used for implanting the nerve stimulator, the nerve stimulator is firstly arranged on the carrying piece; a small incision can then be made in the living body using conventional surgical tools to expose the subcutaneous muscle tissue of the living body; thereafter, inserting a tunneling member through the wound into the site to be implanted of the musculature of the living being, the tunneling member separating fascia from the musculature during the process; then, the tunnel-making piece is rotated to enable the implantation position to form a cavity in the shape of a revolution body for implantation of the nerve stimulator; then, pushing the carrying piece to push the nerve stimulator pre-mounted on the carrying piece to a target position in the cavity so that the nerve stimulator can stimulate a target nerve at the target position; afterwards, the auxiliary disassembly piece is used for separating the nerve stimulator from the carrying piece, so that the nerve stimulator can be left at the position to be implanted; thereafter, the implantation instrument is pulled out of the living body.

The size of the wound only needs to allow the tunnel making member to be inserted, so that only a small wound is needed to be cut on the living body, the damage to the living body is small, and the residual scars are small. Because the nerve stimulator is carried to the cavity by the carrying piece and the carrying piece can move relative to the tunnel making piece, the position of the nerve stimulator can be quickly adjusted by controlling the moving distance of the carrying piece so as to accurately send the nerve stimulator to the target position, and the position of the nerve stimulator does not need to be adjusted by other auxiliary tools, so that the operation time can be shortened.

Drawings

FIG. 1 is a schematic view of an implantation instrument according to an embodiment of the present invention;

FIG. 2 is an exploded view of the embodiment of FIG. 1;

FIG. 3 is a schematic view of the back side of the structure of FIG. 2;

FIG. 4 is an enlarged schematic view of FIG. 3 at A;

FIG. 5 is a schematic diagram of an implantation system according to an embodiment of the present invention;

FIG. 6 is a schematic view of the embodiment of FIG. 5 with a neural stimulator mounted to a carrier;

FIG. 7 is a top view of another embodiment of a neural stimulator;

fig. 8 is a left side view of the neural stimulator of the embodiment shown in fig. 7.

Reference numerals:

1. an implantation instrument; 11. tunnel forming; 111. a tunnel part is manufactured; 112. a guide part; 1121. a first guide groove; 113. a holding portion; 114. a guide rail group; 1141. a guide rail; 12. a carrying member; 121. a second guide groove; 122. a protective cover; 123. a carrying part; 1231. a receiving groove; 124. an extension; 125. a slide block; 13. an auxiliary dismounting piece; 2. a neural stimulator; 21. a stimulator body; 22. and an anti-falling part.

Detailed Description

In order that the above objects, features and advantages of the invention will be readily understood, a more particular description of the invention will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the invention, whereby the invention is not limited to the specific embodiments disclosed below.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present invention, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.

The present invention provides an implantation instrument for implanting a neurostimulator into a living being.

In the conventional art, the method for implanting the neural stimulator into the living body is as follows: a doctor firstly cuts a wound on a living body, then separates fascia and muscle tissues by using surgical tools such as a fascia knife or an ablation forceps and the like to form a channel in the living body for implantation of the nerve stimulator, and then plugs the nerve stimulator into the channel by hand and adjusts the position of the nerve stimulator in the channel, so that the nerve stimulator is placed at a target position, and the nerve stimulator can stimulate target nerves at the target position.

However, this implantation method requires making a large incision in the living body for the physician to operate, which causes a large injury to the living body, leaving a large scar, and the physician also adjusts the position of the neurostimulator within the passageway with the aid of an auxiliary tool, resulting in a long surgical time.

In order to solve the above-mentioned problems, referring to fig. 1 to 3 and 5, the implantation apparatus 1 provided by the present invention includes a tunneling member 11 and a carrying member 12. The tunnel-making piece 11 is used for piercing the to-be-implanted part of the organism, so that the to-be-implanted part forms a cavity for implantation of the nerve stimulator; the carrier 12 is used to carry the neurostimulator so as to carry the neurostimulator into the cavity.

Specifically, the carrying member 12 is connected to the tunnel-making member 11 and is movable relative to the tunnel-making member 11, and after the tunnel-making member 11 penetrates through the site to be implanted of the living body and forms the cavity in the site to be implanted, the position of the nerve stimulator in the cavity can be adjusted by moving the carrying member 12, so that the position of the nerve stimulator relative to the target nerve can be precisely controlled by the carrying member 12, and the nerve stimulator can precisely stimulate the target nerve at the target position. Thus, the doctor can adjust the position of the nerve stimulator by using the carrier 12, and no other auxiliary tool is needed, which can shorten the operation time.

In order to be able to leave the neurostimulator in the cavity and pull the implantation instrument 1 out of the living body, the carrier 12 needs to be detachable from the neurostimulator. For this purpose, the carrier 12 is detachably connected to the nerve stimulator.

Referring to fig. 1 to 3 and 5, the implantation instrument 1 further comprises an auxiliary disassembly member 13, the auxiliary disassembly member 13 being used to separate the carrier member 12 from the neurostimulator. Specifically, the auxiliary dismounting member 13 is connected to the mounting member 12 and is movable with respect to the mounting member 12. After the neurostimulator reaches the target position, the doctor can apply force to the neurostimulator through the auxiliary dismounting piece 13, so that the neurostimulator is separated from the carrying piece 12, and the carrying piece 12 and the neurostimulator are separated.

When the implantation instrument 1 provided by the invention is used for implanting the nerve stimulator, the nerve stimulator is firstly arranged on the carrying piece 12; a small incision can then be made in the living body using conventional surgical tools to expose the subcutaneous muscle tissue of the living body; thereafter, the tunnelling member 11 is inserted through the wound into the site to be implanted of the muscular tissue of the living body, during which the tunnelling member 11 separates fascia from the muscular tissue; then, the tunnel-making member 11 is rotated to form a cavity in the shape of a revolution body at the site to be implanted for implantation of the nerve stimulator; thereafter, the carrier 12 is pushed to push the neurostimulator previously mounted on the carrier 12 to a target position within the cavity so that the neurostimulator can stimulate a target nerve at the target position; afterwards, the auxiliary dismounting piece 13 is used for separating the nerve stimulator from the carrying piece 12, so that the nerve stimulator can be left at the position to be implanted; thereafter, the implant device 1 is pulled out of the living body.

The size of the incision only needs to allow insertion of the tunnelling member 11, so that only a small incision is made in the living body, less damage is caused to the living body and less scar remains. Because the neurostimulator is carried to the cavity by the carrying member 12 and the carrying member can move relative to the tunnel-making member, the position of the neurostimulator can be adjusted by controlling the moving distance of the carrying member 12 so as to accurately send the neurostimulator to the target position, and the position of the neurostimulator can be adjusted without other auxiliary tools, so that the operation time can be shortened.

It will be appreciated that the attachment between the carrier 12 and the neurostimulator may be a tight fit, such as: the carrying member 12 is provided with a receiving groove 1231, and the neurostimulator is tightly fitted in the receiving groove 1231, as shown in fig. 3 and 4; the connection between the carrier 12 and the nerve stimulator may also be a snap-fit connection, such as: the nerve stimulator is provided with a male buckle, the carrying piece 12 is provided with a female buckle, and the male buckle is inserted into the female buckle. The connection between the mount 12 and the nerve stimulator is not limited to the above, as long as the mount 12 can be detachably connected to the nerve stimulator and the auxiliary detachable member 13 is allowed to detach the nerve stimulator from the mount 12.

Referring to fig. 1-3 and 5, in some embodiments, the tunnel-creating member 11 includes a guide portion 112 and a tunnel-creating portion 111, the tunnel-creating portion 111 being disposed at a lengthwise end of the guide portion 112. Along the direction of the guide portion 112 toward the tunnel-making portion 111, the distance between both sides in the width direction of the tunnel-making portion 111 becomes gradually smaller, and the tunnel-making material 11 is inserted into the living body muscle tissue through the tunnel-making portion 111. Thus, the end of the tunnel-making portion 111 away from the guide portion 112 is narrower, and the resistance applied to the tunnel-making portion 111 during insertion into the muscle tissue of the living body is smaller, which is advantageous for the insertion of the tunnel-making portion 111 into the muscle tissue of the living body.

The tunnel-creating member 11 separates fascia and muscle tissue mainly by the tunnel-creating portion 111, and the tunnel-creating portion 111 needs to contact fascia. If the tunnel-creating portion 111 is too sharp, the tunnel-creating portion 111 may injure the fascia and even break the fascia.

Referring to fig. 1-3 and 5, in some embodiments, in order to prevent the tunnelling portion 111 from injuring fascia, the tunnelling portion 111 has a wedge-shaped plate shape. On the one hand, this gives the tunnelling portion 111 a certain bluntness, so that it is avoided that the tunnelling portion 111 is too sharp to injure fascia by mistake. On the other hand, the wedge-shaped tunnel-making portion 111 is advantageous in reducing resistance applied to the tunnel-making portion 111 during insertion into the musculature of the living body, and in facilitating insertion of the tunnel-making portion 111 into the living body.

To facilitate carrying of the neurostimulator to the target site by the carrier 12, some spacing guide structures may be provided on the tunneling member 11 and the carrier 12.

Referring to fig. 1 and 2, in some embodiments, the guide portion 112 is provided with a first guide groove 1121, the first guide groove 1121 extends toward the tunnel portion 111, and the carrying element 12 is disposed through the first guide groove 1121. Thus, the first guide groove 1121 serves as a stopper guide for the carrier 12, so that the carrier 12 can move along a constant straight path. The doctor can carry the nerve stimulator to the target site quickly and accurately by pushing the carrier 12 along the first guide slot 1121, which serves to shorten the operation time. Specifically, the doctor can apply force to the carriage 12 to move the carriage 12 along the first guide groove 1121 to carry the neurostimulator to the target location.

In some embodiments, the width of the carrier 12 is equal to or slightly less than the width of the first guide slot 1121.

Referring to fig. 1 and 2, in some embodiments, the guide portion 112 is further provided with a guide rail set 114, where the guide rail set 114 includes two guide rails 1141, and the two guide rails 1141 are opposite and spaced apart to form a guide gap, and an extension direction of the guide gap is consistent with an extension direction of the first guide groove 1121. The part of the carrier 12 close to the nerve stimulator is provided with a slider 125, which slider 125 is adapted to the guiding gap and is slidingly connected to the guiding rail set 114. Specifically, the width of the slider 125 is equal to or slightly smaller than the width of the guide gap. Thus, the guide gap also serves as a limit guide for the carrier 12, so that the carrier 12 can move along a fixed path, thereby enabling the carrier 12 to quickly and accurately carry the neurostimulator to the target location.

Further, in some of these embodiments, the faces on the slider 125 for sliding connection with the rail set 114 are also finished, as are the faces on the two rails 1141 of the rail set 114 for sliding connection with the slider 125. Thereby, precise guidance of the mount 12 can be achieved.

Referring to fig. 3, in some embodiments, the carrying element 12 is provided with a second guiding groove 121, the second guiding groove 121 extends towards the tunnel making portion 111, and the auxiliary dismounting element 13 is arranged through the second guiding groove 121. Thereby, the second guide groove 121 plays a role of limiting guide for the auxiliary disassembly member 13, so that the auxiliary disassembly member 13 can be quickly moved along the second guide groove 121 to quickly push the nerve stimulator away from the carrying member 12. Specifically, the doctor can apply force to the auxiliary disassembly member 13 to move the auxiliary disassembly member 13 along the second guide groove 121 to push the nerve stimulator away from the carrier 12.

In some embodiments, the auxiliary disassembly member 13 is fitted with the second guide groove 121, and the width of the auxiliary disassembly member 13 is equal to or slightly smaller than the width of the second guide groove 121.

Referring to fig. 1 to 3 and 5, in some embodiments, the tunnel forming member 11 further includes a supporting portion 113, and the supporting portion 113 is protruding from the guiding portion 112 along the width direction of the guiding portion 112. After insertion into the muscle tissue of the living body, the tunnel-making member 11 can be held against the wound by the holding portion 113. After the abutment 113 abuts against the wound, the tunnel-making member 11 cannot be inserted further into the muscle tissue of the living body. Thus, the tunnel-creating member 11 can be prevented from being inserted further into the muscle tissue of the living body by the force applied during the process of moving the mounting member 12 by applying the force to the mounting member 12 and the process of pushing the nerve stimulator away from the mounting member 12 by applying the force to the auxiliary dismounting member 13, thereby preventing the tunnel-creating member 11 from causing secondary damage to the living body.

Referring to fig. 1 to 6, in some embodiments, the mount 12 includes a mount 123, and the mount 12 mounts the nerve stimulator through the mount 123. The mounting portion 123 is detachably connected to the nerve stimulator so that the nerve stimulator can be detached from the mounting portion 123 and left in the cavity. Specifically, referring to fig. 3, 4 and 6, in some embodiments, the carrying member 12 is provided with a carrying portion 123, and the carrying portion 123 is provided with a receiving groove 1231, where the receiving groove 1231 is used to form a tight fit with the nerve stimulator. By moving the auxiliary detachable member 13 along the second guide groove 121 toward the tunnel-making portion 111, the nerve stimulator can be pushed away from the mount 12. In other embodiments, the mounting portion 123 may be snap-fit with the neurostimulator. The nerve stimulator is provided with a male button, and the carrying member 12 is provided with a female button, and the male button is inserted into the female button. The end of the auxiliary dismounting member 13 adopts a structure similar to a screwdriver bit in a straight line to pry open the snap connection between the carrying part 123 and the nerve stimulator, and after prying open the snap connection, the nerve stimulator is pushed away from the carrying member 12 by the auxiliary dismounting member 13.

It should be noted that, whether the mounting member 12 is a tight fit or a snap fit connection with the neurostimulator, the mounting member 12 can be moved forward with the neurostimulator and moved backward with the neurostimulator. The puncture needle for implanting the nerve stimulator commonly used in the market at present can only push the nerve stimulator to advance and can not carry the nerve stimulator to retreat. During implantation of the neurostimulator, the neurostimulator may be moved too far, causing the neurostimulator to pass over the target location. At this time, the carrier 12 can also be retracted with the neurostimulator, so that the neurostimulator is retracted to the target position, which is not possible with a conventional puncture needle on the market.

Referring to fig. 1 to 6, in some embodiments, the carrier 12 further includes a protective cover 122, the protective cover 122 is covered on the carrying portion 123, and the carrying portion 123 is located between the protective cover 122 and the tunnel-making member 11. Thus, the nerve stimulator mounted on the mounting portion 123 is also located between the protective cover 122 and the tunnel-making member 11, and is covered by the protective cover 122, so that the protective cover 122 and the tunnel-making member 11 can collectively protect the nerve stimulator. Specifically, during the process of carrying the neurostimulator to the target position by the carrying member 12, the protecting cover 122 can block the organism muscle tissue along one direction, and the tunnel-making member 11 can block the organism muscle tissue along the opposite direction, so as to avoid the organism muscle tissue contacting the neurostimulator, thereby avoiding damage to the neurostimulator caused by friction resistance or other resistance of the organism muscle tissue to the neurostimulator. In other words, the protective cover 122 and the tunnel-making member 11 can separate the neurostimulator from the body muscle tissue during the process of carrying the neurostimulator to the target site by the carrying member 12.

Referring to fig. 1 to 3 and 5, in some embodiments, the carrying member 12 further includes an extension 124, the extension 124 is connected to the tunnel-making member 11 and is movable relative to the tunnel-making member 11, the protecting cover 122 is disposed at a distal end of the extension 124 in a length direction, and the carrying portion 123 is connected to the protecting cover 122. The extension 124 can increase the length of the mounting member 12, and thus the mounting portion 123 can move to a deeper position in the cavity.

If the auxiliary removing member 13 is attached to the carrying member 12 during pushing of the carrying member 12, there is a possibility that the doctor may erroneously touch the auxiliary removing member 13, thereby causing the nerve stimulator to be detached from the carrying member 12 before reaching the target site. To prevent this, referring to fig. 1 and 5, in some embodiments, an auxiliary detacher 13 is detachably coupled to the carrier 12, and the auxiliary detacher 13 is coupled to the carrier 12 after the nerve stimulator reaches the target site. Specifically, in some of the embodiments, the second guide groove 121 is a cylindrical groove, and the auxiliary dismounting member 13 is a cylindrical body fitted to the second guide groove 121, so that the auxiliary dismounting member 13 can freely enter and exit the second guide groove 121 to be detachably connected to the mount member 12.

Referring to fig. 5 to 8, the present invention further provides an implantation system, which includes the neurostimulator 2 and the implantation apparatus 1, wherein the neurostimulator 2 is detachably mounted on the carrier 12. In using the implantation system, the neurostimulator 2 may be implanted in a living body using the implantation instrument 1 described above. Thus, when the neurostimulator 2 is implanted, only a small incision is made to allow the tunneling member 11 to be inserted, causing less injury to the living being and less scarring. In addition, the position of the neurostimulator 2 can be quickly adjusted by adjusting the moving distance of the mounting member 12, and the position of the neurostimulator 2 does not need to be adjusted by other auxiliary tools, so that the operation time can be shortened.

Referring to fig. 6, in the implantation system of some embodiments, the neurostimulator 2 is a substantially cylindrical body, the mounting member 12 is provided with a mounting portion 123, the mounting portion 123 is provided with a cylindrical accommodating groove 1231, and the neurostimulator 2 is tightly fitted in the accommodating groove 1231 to be detachably mounted on the mounting member 12. By moving the auxiliary dismounting member 13 along the second guide groove 121 toward the tunnel-making portion 111, the nerve stimulator 2 can be pushed away from the mounting member 12.

In some embodiments of the implantation system, the neurostimulator 2 is snap-connected to the mounting portion 123. Specifically, the neurostimulator 2 is provided with a pin, and the mounting member 12 is provided with a box into which the pin is inserted. The end of the auxiliary dismounting member 13 adopts a structure similar to a screwdriver bit to pry open the snap connection between the carrying part 123 and the nerve stimulator 2, and after prying open the snap connection, the auxiliary dismounting member 13 is used to push the nerve stimulator 2 away from the carrying member 12.

Referring to fig. 5 and 6, in some embodiments of the implantation system, the neurostimulator 2 is positioned between the mounting member 12 and the tunneling member 11. The projection of the mounting member 12 covers the projection of the nerve stimulator 2 along the direction of the mounting member 12 toward the tunnel-making member 11. Along the direction of the carrier 12 towards the tunneling member 11, the projection of the carrier 12 covers the projection of the neurostimulator 2. In other words, the neurostimulator 2 does not protrude from the mount 12 along both the longitudinal direction and the width direction of the mount 12. Thus, during the process of carrying the neurostimulator 2 to the target position by the carrying member 12, the protecting cover 122 can block the organism muscle tissue along one direction, and the tunnel-making member 11 can block the organism muscle tissue along the opposite direction, so as to avoid the organism muscle tissue from contacting the neurostimulator 2, thereby avoiding the damage to the neurostimulator 2 caused by friction resistance or other resistance of the organism muscle tissue to the neurostimulator 2.

Referring to fig. 7 and 8, in some embodiments of the implantation system, the neurostimulator 2 includes a stimulator body 21 and a release preventing portion 22, one end of the release preventing portion 22 is connected to the stimulator body 21, and the other end is movable relative to the stimulator body 21 and can partially protrude from the outer peripheral surface of the stimulator body 21. When the nerve stimulator 2 is mounted on the mounting member 12, the anti-drop portion 22 is folded and folded on the outer peripheral surface of the stimulator body 21, so that the overall size of the nerve stimulator 2 can be reduced, and thus, the size of the implanting apparatus 1 for implanting the nerve stimulator 2 can be also smaller, which is advantageous in reducing the incision that needs to be cut on the living body; after the nerve stimulator 2 is separated from the mounting member 12, the retaining portion 22 protrudes from the outer peripheral surface of the stimulator body 21 to abut against the muscle tissue of the living body, thereby fixing the nerve stimulator.

In some embodiments of the implantation system, the anti-falling portion 22 may be an elastomer, one end of the anti-falling portion 22 is connected to the stimulator body 21, and the other end protrudes from the outer peripheral surface of the stimulator body 21. During the process of inserting the nerve stimulator 2 into the accommodating groove 1231, the drop-preventing portion 22 is folded and folded on the outer circumferential surface of the stimulator body 21 due to the elastic deformation of the accommodating groove 1231 due to the restriction of the groove wall. After the nerve stimulator 2 is pushed away from the mount 12, the retaining portion 22 returns to its original state and protrudes from the outer peripheral surface of the stimulator body 21.

Specifically, in the embodiment shown in fig. 7 and 8, the drop-off preventing portion 22 is an elastic body, and the drop-off preventing portion 22 may be biased in the circumferential direction of the stimulator body 21 so that the drop-off preventing portion 22 is elastically deformed and folded around the outer circumferential surface of the stimulator body 21, and then the neurostimulator 2 may be mounted on the mounting member 12. After the nerve stimulator 2 is pushed away from the mount 12, the retaining portion 22 returns to its original state and protrudes from the outer peripheral surface of the stimulator body 21.

It should be noted that the neurostimulator 2 shown in fig. 5 to 8 is merely an example to facilitate understanding of the structure and principle of the implantation system, and does not suggest that the implantation system is applicable to only the neurostimulator 2 shown in fig. 5 to 8.

It will be appreciated that in each of the above embodiments, the body that applies force to the insertion instrument 1 may be a medical staff member or a surgical robot. The medical staff or the surgical robot may apply force to the surgical instrument by bare hands or may apply force to the implant instrument 1 by using an auxiliary tool.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples illustrate only a few embodiments of the invention, which are described in detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.

Claims (11)

1. An implantation instrument for implanting a neurostimulator (2), comprising:

a tunneling member (11) for piercing a site to be implanted so that the site to be implanted forms a cavity;

a carrying member (12) movably connected to the tunnel-making member (11) for detachably connecting the neurostimulator (2) to carry the neurostimulator (2) into the cavity; and

an auxiliary dismounting piece (13) is movably connected with the carrying piece (12) and is used for separating the carrying piece (12) from the nerve stimulator (2).

2. The implantation instrument according to claim 1, wherein the tunnel-creating member (11) comprises a guide portion (112) and a tunnel-creating portion (111), the tunnel-creating portion (111) being provided at a distal end in a longitudinal direction of the guide portion (112), a distance between both sides in a width direction of the tunnel-creating portion (111) being gradually smaller along a direction in which the guide portion (112) faces the tunnel-creating portion (111).

3. An implantation instrument according to claim 2, wherein the tunnelling portion (111) is wedge-shaped plate-like.

4. The implantation instrument according to claim 2, wherein the guide portion (112) is provided with a first guide groove (1121) extending toward the tunnel-making portion (111), and the carrier (12) is provided to pass through the first guide groove (1121).

5. The implantation instrument according to claim 4, wherein the mounting member (12) is provided with a second guide groove (121) extending toward the tunnel-making portion (111), and the auxiliary dismounting member (13) is provided to penetrate the second guide groove (121).

6. The implantation instrument according to claim 2, wherein the tunnel-making member (11) further comprises a holding portion (113), the holding portion (113) protruding from the guide portion (112) along a width direction of the guide portion (112).

7. The implantation instrument according to claim 1, wherein the mounting member (12) comprises a protective cover (122) and a mounting portion (123) for detachably connecting the neurostimulator (2), the mounting portion (123) being located between the protective cover (122) and the tunnel-making member (11), the protective cover (122) being provided to cover the mounting portion (123).

8. The implantation instrument according to claim 7, wherein the carrier member (12) further comprises an extension (124), the extension (124) being movably connected to the tunnel-making member (11), the protective cover (122) being provided at a longitudinal end of the extension (124).

9. An insertion instrument according to claim 1, characterized in that the auxiliary detachment piece (13) is detachably connected to the carrier piece (12).

10. An implantation system, comprising:

the implantation instrument of any one of claims 1 to 9; and

the nerve stimulator (2) is detachably arranged on the carrying piece (12), is positioned between the carrying piece (12) and the tunnel making piece (11), and is arranged along the direction of the carrying piece (12) towards the tunnel making piece (11), and the projection of the carrying piece (12) covers the projection of the nerve stimulator (2).

11. The implantation system according to claim 10, wherein the neurostimulator (2) comprises a stimulator body (21) and a drop-off prevention portion (22), one end of the drop-off prevention portion (22) is connected to the stimulator body (21), and the other end is movable relative to the stimulator body (21) and can partially protrude from the outer peripheral surface of the stimulator body (21);

when the nerve stimulator (2) is mounted on the mounting piece (12), the anti-falling part (22) is folded and folded on the outer peripheral surface of the stimulator body (21); after the nerve stimulator (2) is separated from the mounting member (12), the anti-drop portion (22) protrudes from the outer peripheral surface of the stimulator body (21).