CN110584874B

CN110584874B - Implant conveying device

Info

Publication number: CN110584874B
Application number: CN201910790215.0A
Authority: CN
Inventors: 徐涛
Original assignee: Jiangsu Bestone Medical Equipment Co ltd
Current assignee: Hisguard Suzhou Biomedical Technology Co ltd
Priority date: 2019-08-26
Filing date: 2019-08-26
Publication date: 2022-05-06
Anticipated expiration: 2039-08-26
Also published as: CN110584874A

Abstract

The invention discloses an implant conveying device, which comprises a shell, a first push button and a second push button, a puncture module and an implant retainer, wherein the first push button and the second push button are respectively connected with the shell in a sliding manner; the puncture module comprises a puncture needle for puncturing to a target position, and the implant holder is used for conveying the implant to the target position; the implant holder comprises a guide rod, a push pipe and a holding pipe, wherein the guide rod is sleeved in the push pipe, and the push pipe is sleeved in the holding pipe; the retaining tube is sleeved in the puncture needle; the retaining tube is used for clamping the implant, the push tube is used for pushing the implant out of the retaining tube, and the guide rod penetrates through the implant so as to enable the implant to move along the guide rod; the first push button is connected with the puncture module, and when the first push button slides from a first position to a second position, the puncture module is driven to return the puncture needle; the second push button is connected with the push tube, and when the second push button slides from the third position to the fourth position, the second push button drives the push tube to push the implant out of the holding tube.

Description

Implant conveying device

Technical Field

The invention relates to the technical field of medical instruments, in particular to a conveying device for an implant.

Background

The human eye is a special sensory organ that receives light and receives visual images. Aqueous humor is a transparent liquid that fills at least the area between the cornea, the front of the eye, and the lens. Aqueous humor is continuously secreted by the ciliary process of the ciliary body into the posterior chamber of the eye and water flows through the pupil into the anterior chamber, so there is a constant flow of fluid from the ciliary body into the anterior chamber of the eye. The aqueous fluid provides nourishment to the eyes without vascular structures (e.g., cornea and lens) and maintains intraocular pressure. The pressure in the eye is determined by the balance between the production of water in the eye and the outflow of water through the tubules.

Many open angle glaucoma is due to increased resistance of the trabecular meshwork or schlemm's canal to aqueous humor drainage. The tissue of the trabecular meshwork generally allows aqueous humor to enter schlemm's canal, then enter the water collection channel at the posterior wall of the schlemm's canal, and then enter the water veins, forming the schlemm's venous system. The uveoscleral outflow pathway refers to the diffusion of water out of the anterior chamber through the intercellular spaces between ciliary muscle fibers.

Intraocular implants may be implanted in an eye to facilitate the egress of water, thereby reducing intraocular pressure. Typical implantation methods require relatively invasive surgery, risk excessive trauma to the eye, and require excessive handling of the implant. For example, in a typical implantation method, an incision is made through the sclera or cornea, and forceps or other similar manual grasping devices are used to insert the implant into the desired implantation location. And only one implant is introduced into the eye at a time. This requires reinstallation and repositioning of the forceps prior to insertion of each implant into the eye. Once the implant is implanted, the grasping device is removed and the incision is sutured. The existing operation is complex and requires low security.

Disclosure of Invention

The present invention is directed to overcoming the above-mentioned problems in the art and providing a delivery device for an implant that can deliver the implant to a target site safely and reliably.

In order to achieve the purpose, the invention adopts the following technical scheme:

a conveying device for an implant comprises a shell, a first push button and a second push button which are respectively connected with the shell in a sliding way, a puncture module and an implant retainer, wherein the puncture module and the implant retainer are respectively connected with the shell; the puncture module comprises a puncture needle for puncturing to a target location, and the implant holder is used for delivering an implant to the target location; the implant holder comprises a guide rod, a push pipe and a holding pipe, wherein the guide rod is sleeved in the push pipe, and the push pipe is sleeved in the holding pipe; the retaining tube is sleeved in the puncture needle; the holding tube is used for clamping the implant, the push tube is used for pushing the implant out of the holding tube, and the guide rod penetrates through the implant so as to enable the implant to move along the guide rod; the first push button is connected with the puncture module, and when the first push button slides from a first position to a second position, the puncture module is driven to enable the puncture needle to return; the second push button is connected with the push pipe, and when the second push button slides to the fourth position from the third position, the second push button drives the push pipe to push the implant out of the holding pipe.

Furthermore, one end of the holding tube is provided with two symmetrical U-shaped grooves for clamping the implant to prevent the implant from falling off; the other end of the retaining tube is provided with a retaining tube fixing block, the shell is provided with a first fixing groove, and the retaining tube fixing block is matched with the first fixing groove so that the retaining tube fixing block is clamped in the first fixing groove.

Further, the one end of guide bar has the guide bar fixed block, the casing is equipped with the second fixed slot, the guide bar fixed block is equipped with the second fixed slot is suitable for making the guide bar fixed block joint in the second fixed slot.

Furthermore, the puncture module comprises a pull rod, one end of the pull rod is provided with a pull rod shaft pin hole, and the pull rod shaft pin hole is fixed with the first push button so that the pull rod can move along with the sliding of the first push button.

Furthermore, one end of the push pipe is provided with a push pipe fixing block, a guide groove is formed in the middle of the pull rod, and the push pipe fixing block is matched with the guide groove so that the push pipe fixing block can move within the range of the guide groove.

Furthermore, a puncture needle fixing block is arranged at one end of the puncture needle, a third fixing groove is formed in the other end of the pull rod, and the puncture needle fixing block is matched with the third fixing groove so that the puncture needle fixing block can be clamped in the third fixing groove.

Further, the housing comprises an end cap, a main housing and an end cap; the end cap is provided with a first clamping groove and is fixedly connected with the main shell through the first clamping groove; the end cover is provided with a second clamping groove and is fixedly connected with the main shell through the second clamping groove.

Furthermore, the puncture needle is further provided with a puncture needle guide cap, a guide hole for the puncture needle to pass through is formed in the puncture needle guide cap, a Y-shaped groove is formed in the surface of the puncture needle guide cap, a limiting bump is arranged inside the end cap, and the Y-shaped groove is matched with the limiting bump to fix the puncture needle guide cap.

Furthermore, the shell is provided with a first sliding groove and a second sliding groove, and the first sliding groove is matched with the first push button so that the first push button can slide in the range of the first sliding groove; the second sliding groove is matched with the second push button so that the second push button can slide in the range of the second sliding groove.

Furthermore, the other end of the puncture needle is an inclined plane.

Compared with the prior art, the invention can safely and reliably convey the implant to the target position in the operation process, provides great convenience for doctors and reduces the operation risk.

Drawings

FIG. 1 is a block diagram of an implant delivery device according to one embodiment;

FIG. 2 is a schematic structural diagram of a side housing of a conveying device according to an embodiment;

FIG. 3 is a schematic diagram of an internal structure of a conveying apparatus according to an embodiment;

FIG. 4 is a schematic view of an outer surface configuration of an end cap according to one embodiment;

FIG. 5 is a schematic view of an end cap construction provided in accordance with one embodiment;

FIG. 6 is a schematic view of a needle guide cap according to one embodiment;

FIG. 7 is a schematic view of a lancet configuration provided in accordance with one embodiment;

FIG. 8 is a schematic view of a holding tube structure provided in accordance with a first embodiment;

FIG. 9 is a schematic view of a push tube according to an embodiment;

FIG. 10 is a schematic view of a guide bar according to an embodiment;

FIG. 11 is a schematic view of a second push button according to an embodiment;

FIG. 12 is a schematic view of a first push button according to an embodiment;

FIG. 13 is a schematic view of a pull rod structure according to an embodiment;

FIG. 14 is a schematic view of an end cap according to an embodiment;

FIG. 15 is a schematic view of an implant delivery device according to the second embodiment;

FIG. 16 is a schematic delivery diagram of an implant delivery device according to the second embodiment;

FIG. 17 is a schematic delivery diagram of an implant delivery device according to the second embodiment;

wherein, 100, the conveying device; 101. a main housing; 102. an end cap; 103. an end cap; 104. a second push button; 105. a first push button; 106. anti-skid lines; 200. one side shell of the conveying device; 201. a second fixing groove; 202. a pipe pushing shaft pin guide groove; 203. a first fixing groove; 204. a first sliding groove; 205. a second sliding groove; 300. the internal structure of the conveying device; 401. an end cap outer planar surface; 402. a first card slot; 403. a limiting bump; 500. a puncture needle guide cap; 501. a main body; 502. a Y-shaped groove; 503. a rear end seat; 600. puncturing needle; 602. a puncture needle fixing block; 603. the puncture needle is in an inclined plane; 604. a central hole of the puncture needle fixing block; 800. a holding tube structure; 801. a holding tube; 802. a holding tube fixing block; 803. a central hole of the retaining tube fixing block; 804. one end of the holding tube is a U-shaped groove; 900. a push tube structure; 901. pushing the tube; 902. a push pipe fixing block; 903. a push tube fixing block shaft pin hole; 904. a central hole of the push pipe fixing block; 1000. a guide bar structure; 1001. a guide rod; 1002 guiding rod fixing blocks; 1003. a central hole of the guide rod fixing block; 1101 a second push button axle pin hole; 1102. the second push button anti-skid cross striation; 1201. a first push button axle pin hole; 1202. the first push button anti-skid cross striation; 1300. a pull rod; 1301. a third fixing groove; 1302. a guide groove; 1303. a pull rod shaft pin hole; 1400. a puncture needle position sectional view; 1500. an implant; 1701. a target location.

Detailed Description

The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention. It is to be noted that the features in the following embodiments and examples may be combined with each other without conflict.

The invention aims to overcome the defects of the prior art and provides a delivery device of an implant.

It is noted that the implant is a foraminous drainage element sized and configured for placement in an ocular region of the eye, such as the trabecular meshwork. The implant is quite small in volume, with a diameter of 0.3mm and a length of 0.6 mm. The front section of the implant is provided with a hole reaching the bottom in the middle of the cone, and the front end surface of the cone is provided with four holes reaching the bottom of the implant. The middle part of the implant is provided with an annular groove which can be clamped on the trabecular meshwork, and the holes can play a role of drainage, thereby ensuring that the intraocular pressure is at a normal value and achieving the purpose of treating glaucoma.

Example one

The present embodiment provides an implant delivery device, as shown in fig. 1, the delivery device 100 is small in size, light in weight, ergonomically configured to facilitate grasping and manipulation and has a pen-like appearance, the delivery device 100 includes a housing, first and

second push buttons

105 and 104 slidably connected to the housing, respectively, a puncture module connected to the housing, respectively, an implant holder; the shell comprises an end cap 102, a main shell 101 and an end cap 103, wherein the front section of the outer side of the main shell 101 is provided with an anti-skid grain 106. The puncture module comprises a puncture needle and a pull rod; the implant holder comprises a guide rod, a push tube and a holding tube. Wherein the puncture needle is used for puncturing to a target position and the implant holder is used for delivering the implant to the target position.

The main housing 101 includes two housings, i.e., a left housing and a right housing, as shown in fig. 2, which are symmetrical to each other and are fixed by edge snapping to form the main housing 101, in order to facilitate the assembly of internal components. The end cap 102 is arranged at one end of the main housing 101, the end cap 102 is provided with a first clamping groove, and the end cap 102 is fixedly connected with the main housing through the first clamping groove; it is connected with two casings of left and right sides through the mode of draw-in groove, and its effect plays certain fixed action to two casings of left and right sides. The end cover 103 is disposed at the other end of the main housing 101, the end cover 103 is provided with a second locking groove, the end cover 103 is fixedly connected to the main housing through the second locking groove and is connected to the main housing 101 through the locking groove, as shown in fig. 14, which is a schematic structural view of the end cover. It should be noted that, the present embodiment is not limited to be connected by means of a snap, a slot, and the like, and may also be connected by means of welding, dissolving, gluing, and the like. The anti-slip lines 106 are arranged on the front section of the outer side of the main shell 101, so that the safety of the operation of the implant can be guaranteed, and certain convenience is provided for an operator.

Fig. 2 shows a side housing 200 of the delivery device, which includes a first sliding groove 204 adapted to the first push button 105, and a second sliding groove 205 adapted to the second push button 104. As shown in fig. 11 and 12, the first push button 105 is similar to the second push button 104. The first push button moves from a first position to a second position in a direction parallel to the housing; the second push button moves from the third position to the fourth position in a direction parallel to the housing. The first push button is positioned behind the second push button, namely the distance from the first push button to the end cap is greater than the distance from the second push button to the end cap.

As shown in fig. 12, the upper surface of the first push button 105 is a curved surface, and the curved surface is provided with a first push button anti-slip cross-section 1202 for facilitating the operation, so as to increase the friction force and improve the operation reliability of the conveying device. The first push button 105 has two stops extending from both sides thereof, the two stops being of the same size and adapted to the first sliding groove 204 so that the first push button 105 slides within the first sliding groove 204.

As shown in fig. 11, the upper surface of the second push button 104 is a curved surface, and the curved surface is provided with a second push button anti-slip cross-section 1102 for facilitating the operation, so as to increase the friction force and improve the operation reliability of the conveying device. The second push button 104 has two stoppers extending from both sides thereof, and the stoppers are adapted to the second sliding groove 205 so that the second push button 104 slides in the second sliding groove 205.

The one side case 200 of the transport apparatus further includes a first fixing groove 203, a second fixing groove 201, and a push pin shaft guide groove 202.

As shown in fig. 8, the structure of the holding tube, the holding tube structure 800 includes a holding tube 801, a holding tube fixing block 802 connected to the holding tube 801, and a holding tube fixing block center hole 803 provided at the center of the holding tube fixing block 802; the holding tube fixing block 802 is fitted to the first fixing groove 203 so that the holding tube fixing block 802 is engaged with the first fixing groove 203.

As shown in fig. 10, which is a structure view of a guide bar, the guide bar structure 1000 includes a guide bar 1001, a guide bar fixing block 1002 connected to the guide bar 1001, and a guide bar fixing block center hole 1003 disposed at the center of the guide bar fixing block 1002; the guide rod fixing block 1002 is matched with the second fixing groove 201 so that the guide rod fixing block 1002 is clamped in the second fixing groove 201.

Referring to fig. 3, which shows the internal structure of the conveying device, a pull rod 1300 is further provided in the internal structure 300 of the conveying device. As shown in fig. 13, the drawbar 1300 includes a third fixing groove 1301, a guide groove 1302, and a drawbar shaft pin hole 1303 provided on the drawbar 1300.

The pull rod axle pin hole 1303 is fixed to the first push button 105, so that the pull rod 1300 moves along with the sliding of the first push button 105; as shown in fig. 12, two stoppers extending from two sides of the first push button 105 are respectively provided with a first push button axle pin hole 1201, and the first push button axle pin hole 1201 and the pull rod axle pin hole are fixed by an axle pin, so that when the first push button 105 slides from the first position to the second position, the pull rod 1300 is driven to move in the same direction.

As shown in fig. 3, a push pipe 901 is further provided, and as shown in fig. 9, the push pipe structure 900 is a push pipe structure diagram, and includes a push pipe 901, a push pipe fixing block 902 connected to the push pipe 901, a push pipe fixing block axle pin hole 903 provided in the push pipe fixing block axle pin hole 903, and a push pipe fixing block center hole 904 provided in the center of the push pipe fixing block 902.

The push tube retaining block 902 fits into the pull rod guide slot 1302 to allow the push tube retaining block 902 to move within the guide slot.

The push tube fixing block shaft pin hole 903 is fixed with the second push button 104 so that the push tube fixing block 902 moves along with the sliding of the second push button 104; as shown in fig. 11, two stoppers extending from two sides of the second push button 104 are respectively provided with a second push button shaft pin hole 1101, the second push button shaft pin hole 1101 is fixed with the push tube fixing block shaft pin hole 903 through a shaft pin, and when the second push button 104 slides from the third position to the fourth position, the push tube fixing block 902 and the push tube 901 are driven to move in the same direction.

The tube-pushing axle pin guiding groove 202 in fig. 2 is a guiding groove for the axle pin used for connecting the second push button 104 with the tube-pushing fixing block 902.

As shown in fig. 3, a puncture needle 600 is further provided, as shown in fig. 7, the puncture needle structure further includes a puncture needle fixing block 602 connected to the puncture needle 600, a puncture needle fixing block center hole 604 provided in the center of the puncture needle fixing block 602, and one end of the puncture needle is an inclined plane 603.

The puncture needle fixing block 602 is matched with the third fixing groove 1301 so that the puncture needle fixing block 602 is clamped in the third fixing groove 1301. When the first push button 105 slides from the first position to the second position, the pull rod 1300 is driven to move in the same direction, and since the puncture needle fixing block 602 is fixed in the third fixing groove 1301 of the pull rod, the puncture needle 600 moves in the same direction by the sliding of the first push button 105.

The guide rod 1001 is sleeved in the push pipe 901 through a push pipe fixing block center hole 904, and the push pipe 901 is sleeved in the holding pipe 801 through a holding pipe fixing block center hole 803; the holding tube 801 is sleeved in the puncture needle 600 through a puncture needle fixing block center hole 604; wherein the holding tube 801 is used for holding the implant, the push tube 901 is used for pushing the implant out of the holding tube 801, and the guide rod 1001 penetrates through the implant to enable the implant to move along the guide rod 1001; the first push button 105 is connected with the puncture module, and when the first push button 105 slides from a first position to a second position, the puncture module is driven to retract the puncture needle 600; the second push button 104 is connected to the push tube 901, and when the second push button 104 slides from the third position to the fourth position, the push tube 901 is driven to push the implant out of the holding tube 801.

In this embodiment, one end of the puncture needle 600 is an inclined surface and is fixed on the puncture needle fixing block 602, and the puncture needle fixing block 602 is fixed in the third fixing groove 1301 of the pull rod 1300, so that the puncture needle is driven to perform the function of moving in the axial direction of the conveying device along with the back and forth movement of the pull rod 1300. The puncture needle 600 is formed in a slant surface so as to easily penetrate the eye, and the size of the puncture needle 600 may range from 22G to 30G. The smaller the diameter of the puncture needle 600, the better, e.g., the puncture needle 600 having a diameter of 0.7mm, the smaller the diameter of the puncture needle, the smaller the wound area on the eye, and the faster the patient can recover after the operation. The puncture needle 600 is a thin-walled or ultra-thin-walled needle, so that the outer diameter of the puncture needle 600 is as small as possible. A smaller puncture needle 6 may be used to implant the implant into the anterior chamber of the eye. According to some embodiments, the tip of the needle 600 is 2mm long to the tilt of the bevel, which can be set according to the actual situation. The length of the puncture needle 300 is 30mm in this embodiment. The puncture needle 600 is inserted into the eye, and then the first push button 105 is slid, the first push button 105 drives the pull rod 1300 to move backwards, and the puncture needle 600 will be retracted under the action of the first push button 105 because the third fixing groove 1301 of the pull rod 1300 is fixed with the puncture needle fixing block 602.

The holding tube 801 is fitted inside the puncture needle 600 and the other end thereof is fixed to the holding tube fixing block 802, and the holding tube fixing block 802 is fixed to the first fixing groove 203 of the housing, so that the holding tube 801 and the housing are fixed together and are fixed in position during the entire implant delivery process. The length of the holding tube 801 is about 30 mm. One end of the holding tube 801 is provided with two symmetrical U-shaped grooves 804, and after the U-shaped grooves are cut, the two pieces at the front end shrink towards the middle due to the formation of the U-shaped grooves, so that the implant can be clamped in the holding tube. Because the retaining tube has a U-shaped slot 804 at one end, the end of the retaining tube 801 having the U-shaped slot will be drawn inwardly to hold the implant in place. The outer diameter of the retention tube 801 should be smaller than the inner diameter of the introducer needle 600 to allow relative movement between the retention tube 801 and the introducer needle 600. While the inner diameter of the holding tube 801 is larger than the maximum outer diameter of the implant so that the implant can be fixed in the holding tube 801. The holding tube 801 of the present embodiment has an inner diameter of about 0.3mm and a length of 30 mm.

One end of the push tube 901 is fixed on the push tube fixing block 902, and the push tube fixing block 902 is connected to the second push button 104 through a shaft pin, so that the second push button 104 can drive the push tube 901 to move in the guiding slot position. The inner diameter of the push tube 901 is larger than 0.12mm, and the outer diameter of the push tube 901 is smaller than 0.3mm, i.e. smaller than the outer diameter of the implant and the holding tube 801, so that the push tube 901 and the holding tube 801 can move relatively.

The guide rod 1001 and the guide rod fixing block 1002 are fixed together, the guide rod fixing block 1002 is fixed in the second fixing groove 201 of the housing, the diameter of the guide rod 1001 is 0.1mm, and the inner diameter of the implant is 0.12mm, so that the guide rod 1001 can pass through the implant, and the implant can move on the guide rod 1001 in the axial direction. The guide rod 1001 functions to allow the implant to move along the axial direction of the guide rod, thereby limiting the position of the implant. Therefore, the push pipe fixing block 902 can move in the guide groove 1302 in the middle of the pull rod 1300, and the shell is provided with a limit block which can ensure that the push pipe moves within a specified range.

In this embodiment, a central hole 604 of the fixing block is formed in the middle of the fixing block 602, and the size of the central hole 604 is the same as the diameter of the puncture needle 600, for example, the diameter of the puncture needle 600 is 0.56 mm; a holding pipe fixing block center hole 803 is formed in the middle of the holding pipe fixing block 802, the size of the holding pipe fixing block center hole 803 is the same as the diameter of the holding pipe 801, and if the diameter of the holding pipe 801 is 0.26 mm; a push pipe fixing block center hole 904 is formed in the middle of the push pipe fixing block 902, and the size of the push pipe fixing block center hole 904 is the same as the diameter of the push pipe 901, for example, the diameter of the push pipe 901 is 0.2 mm; the diameter of the guide rod 1001 is 0.1mm, so that the guide rod is sleeved with the push tube, the push tube is sleeved with the holding tube, and the holding tube is sleeved with the puncture needle.

Referring to fig. 4, which is a front view of the end cap, the outer surface of the end cap 102 is a plane 401, which is coplanar with the main housing 101. Wherein the end cap is tapered.

As shown in fig. 5, two first locking slots 402 are formed in the end cap 102, and the end cap 102 is fixedly connected to the main housing 101 through the first locking slots 402. A limit bump 403 is also included, and the limit bump 403 is fixedly connected with the puncture needle guide cap 500.

The puncture needle 600 is further provided with a puncture needle guide cap 500, a guide hole for the puncture needle 600 to pass through is formed in the puncture needle guide cap 500, a Y-shaped groove 502 is formed in the surface of the puncture needle guide cap 500, a limiting bump 403 is arranged inside the end cap 102, and the Y-shaped groove 502 is matched with the limiting bump 403 to fix the puncture needle guide cap 500.

As shown in fig. 6, the structure of the puncture needle guide cap, the puncture needle guide cap 500 comprises a main body 501, a Y-shaped groove 502, and a rear seat 503, wherein the main body 501 is tapered to fit the end cap 102, and the diameter of the rear seat 503 is the same as that of the end of the main housing 101 connected to the end cap 102. The main body 501 of the puncture needle guide cap 500 is internally provided with a guide hole, the puncture needle 600 can move in the guide hole, and the diameter of the guide hole is 0.7mm-0.9 mm.

In this embodiment, the end cap 102 mainly functions as two components 1: the left shell and the right shell are fixed to a certain extent; 2: the puncture needle guide cap 500 is fixed, a Y-shaped groove is formed in the puncture needle guide cap 500, and the Y-shaped groove is matched with a limiting bump in the end cap, so that the puncture needle guide cap is fixed and cannot rotate.

Compared with the prior art, the embodiment can safely and reliably convey the implant to the target position in the operation process, provides great convenience for doctors, and reduces the operation risk.

Example two

The present embodiment provides a delivery device for an implant, which is different from the first embodiment in that:

this embodiment provides a specific method of operation of the delivery device, as shown in FIG. 15, which is a schematic view of the positioning of the introducer needle 600, the retention tube structure 800, the push tube structure 900, and the guide rod structure 1000, where the implant 1500 is positioned at one end of the retention tube structure 800 and the retention tube holds the implant 1500.

Fig. 16 shows the puncture needle retracted by sliding the first push button after the puncture needle has passed through the eye to the target position, and fig. 17 shows the push tube pushing the implant to the target.

The specific operation process of the conveying device in the embodiment is as follows: the implant is installed in the fixing and conveying device in advance, when treatment is needed, the puncture needle penetrates into an eye and reaches a target position, then the first push button is slid to drive the puncture needle to return, then the second push button is slid to drive the push pipe to push the implant originally fixed on the holding pipe out along the guide rod, the implant is clamped on the target position, and finally the whole conveying device is pulled out to finish conveying the implant.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.

Claims

1. The implant conveying device is characterized by comprising a shell, a first push button and a second push button which are respectively connected with the shell in a sliding manner, a puncture module and an implant holder which are respectively connected with the shell; the puncture module comprises a puncture needle for puncturing to a target location, and the implant holder is used for conveying the implant to the target location; the implant holder comprises a guide rod, a push pipe and a holding pipe, wherein the guide rod is sleeved in the push pipe, and the push pipe is sleeved in the holding pipe; the retaining tube is sleeved in the puncture needle; the holding tube is used for clamping the implant, the push tube is used for pushing the implant out of the holding tube, and the guide rod penetrates through the implant so as to enable the implant to move along the guide rod; the first push button is connected with the puncture module, and when the first push button slides from a first position to a second position, the puncture module is driven to enable the puncture needle to return; the second push button is connected with the push pipe, and when the second push button slides from the third position to the fourth position, the second push button drives the push pipe to push the implant out of the holding pipe;

the puncture module comprises a pull rod, one end of the pull rod is provided with a pull rod shaft pin hole, and the pull rod shaft pin hole is fixed with the first push button so that the pull rod moves along with the sliding of the first push button;

one end of the push pipe is provided with a push pipe fixing block, a guide groove is formed in the middle of the pull rod, and the push pipe fixing block is matched with the guide groove so as to enable the push pipe fixing block to move in the range of the guide groove;

one end of the puncture needle is provided with a puncture needle fixing block, the other end of the pull rod is provided with a third fixing groove, and the puncture needle fixing block is matched with the third fixing groove so that the puncture needle fixing block is clamped in the third fixing groove;

one end of the holding tube is provided with two symmetrical U-shaped grooves for clamping the implant to prevent the implant from falling off; the other end of the retaining tube is provided with a retaining tube fixing block, the shell is provided with a first fixing groove, and the retaining tube fixing block is matched with the first fixing groove so that the retaining tube fixing block is clamped in the first fixing groove.

2. The implant delivery apparatus according to claim 1, wherein the guide rod has a guide rod fixing block at one end thereof, the housing has a second fixing groove, and the guide rod fixing block is adapted to the second fixing groove so that the guide rod fixing block is engaged with the second fixing groove.

3. The implant delivery apparatus according to claim 1, wherein the housing comprises an end cap, a main housing, an end cap; the end cap is provided with a first clamping groove and is fixedly connected with the main shell through the first clamping groove; the end cover is provided with a second clamping groove and is fixedly connected with the main shell through the second clamping groove.

4. The implant delivery apparatus according to claim 3, wherein the puncture needle further comprises a puncture needle guide cap, the puncture needle guide cap is provided with a guide hole for the puncture needle to pass through, the surface of the puncture needle guide cap is provided with a Y-shaped groove, the end cap is internally provided with a limit bump, and the Y-shaped groove and the limit bump are matched to fix the puncture needle guide cap.

5. The implant delivery apparatus according to claim 1, wherein the housing has a first sliding channel and a second sliding channel, the first sliding channel being adapted to the first push button to allow the first push button to slide within the first sliding channel; the second sliding groove is matched with the second push button so that the second push button can slide in the range of the second sliding groove.

6. The implant delivery apparatus of claim 1, wherein the other end of the puncture needle is beveled.