CN110693647A

CN110693647A - Implant conveying device

Info

Publication number: CN110693647A
Application number: CN201910790219.9A
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: 2020-01-17
Anticipated expiration: 2039-08-26
Also published as: CN110693647B

Abstract

The invention discloses a conveying device for an implant, which comprises a shell, a first button, a second button, a puncture module and an implant holder, wherein the first button, the second button, the puncture module and the implant holder are respectively connected with the shell; the puncture module comprises a puncture needle, and the puncture needle is used for puncturing to a target position; the implant holder is used for conveying the implant to a target position; the first button and the second button are respectively arranged on the outer surface of the shell, the first button is used for controlling the puncture module to enable the puncture needle to retract, and the second button is used for controlling the implant holder to deliver the implant to the target position. The present invention can deliver an implant to a target site safely and reliably.

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. Glaucoma (glaucoma) is a group of diseases characterized by atrophy and depression of the optic papilla, visual field loss and visual deterioration, pathological increased intraocular pressure and insufficient blood supply to the optic nerve are primary risk factors of the onset of the glaucoma, and the tolerance of the optic nerve to pressure damage is also related to the occurrence and development of the glaucoma. Obstruction of any ring in the aqueous humor circulatory pathway can lead to pathological changes caused by elevated intraocular pressure, but some patients also present with normal tension glaucoma. Glaucoma is one of three major blinding diseases causing blindness in humans, with a total incidence of 1% and 2% after age 45. Clinically, glaucoma is classified into three major categories, primary, secondary and congenital, according to etiology, angle of the atrium, tonography and the like.

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 to 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.

Treatment for glaucoma may involve implanting intraocular implants in the eye to promote 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 button, a second button, a puncture module and an implant holder, wherein the first button, the second button, the puncture module and the implant holder are respectively connected with the shell; the puncture module comprises a puncture needle, and the puncture needle is used for puncturing to a target position; the implant holder is used for conveying the implant to a target position; the first button and the second button are respectively arranged on the outer surface of the shell, the first button is used for controlling the puncture module to enable the puncture needle to retract, and the second button is used for controlling the implant holder to deliver the implant to the target position.

Furthermore, the puncture module also comprises a pull rod, wherein one end of the pull rod is provided with a first inclined groove, and the first inclined groove is connected with the first button through a first shaft pin so that the pull rod moves along with the movement of the first button.

Furthermore, the first button comprises a first baffle plate and a second baffle plate, the first baffle plate and the second baffle plate are respectively provided with the same first button shaft pin hole, and the first button shaft pin hole is matched with the first chute so that the first shaft pin moves in the first chute.

Further, the implant holder comprises a push tube, a holding tube and a guide rod, the guide rod is sleeved in the push tube, and the push tube is sleeved in the holding tube; 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 that the implant can move along the guide rod.

Furthermore, a push pipe fixing block is arranged at one end of the push pipe, a push pipe fixing block shaft pin hole is formed in the push pipe fixing block, and the push pipe fixing block shaft pin hole is connected with the second button through a second shaft pin, so that the push pipe moves along with the movement of the second button.

Further, the second button comprises a third baffle plate and a fourth baffle plate, the third baffle plate and the fourth baffle plate are respectively provided with a same second inclined groove, and the second inclined grooves are matched with the pipe pushing pin holes so that the second shaft pin moves in the second inclined grooves.

Furthermore, 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, 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, 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.

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 one 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 diagram of a second button structure provided in the first embodiment;

FIG. 12 is a schematic diagram of a first button structure provided in accordance with 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;

101, a main shell; 102. an end cap; 103. an end cap; 104. a second button; 105. a first 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 button slot; 205. a second button slot; 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 bar; 1002 guiding rod fixing blocks; 1003. a central hole of the guide rod fixing block; 1101 a second chute; 1102. a second button anti-slip cross striation; 1103. a third baffle plate; 1104. a fourth baffle; 1201. a first button axle pin hole; 1202. a first button anti-slip cross striation; 1203. a first baffle plate; 1204. a second baffle; 1300. a pull rod; 1301. a third fixing groove; 1302. a guide groove; 1303. a first chute; 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, which is small, lightweight, ergonomically configured to facilitate grasping and handling and has a pen-like appearance, and includes a housing, a first button 105, a second button 104, a piercing module, and an implant holder, which are respectively connected to the housing.

The puncture module comprises a puncture needle 600, and the puncture needle 600 is used for puncturing to a target position; an implant holder for delivering an implant to a target location; a first button 105 and a second button 104 are respectively mounted on the outer surface of the housing, the first button 105 is used for controlling the puncture module to retract the puncture needle 600, and the second button 104 is used for controlling the implant holder to deliver the implant to the target position.

As shown in FIG. 2, a side housing 200 of the delivery device includes a first button slot 204 that fits into the first button 105 and a second button slot 205 that fits into the second button 104. The first button 105 is moved from the first position to the second position by pressing in a direction perpendicular to the housing; the second button 104 is moved from the third position to the fourth position by pressing in a direction perpendicular to the housing. The first button is positioned behind the second button, namely the distance from the first button to the puncture needle is greater than the distance from the second button to the puncture needle.

As shown in fig. 12, the upper surface of the first button 105 is a curved surface, and the curved surface is provided with a first button anti-slip cross-section 1202 for facilitating operation, so as to increase friction and improve the operation reliability of the conveying device. Two first stoppers 1203 and two second stoppers 1204 with the same size extend out of the first button 105 on two sides of the first button 105, and the first stoppers 1203 and the second stoppers 1204 are matched with the first button groove 204 so that the first button 105 can move in the first button groove 204. The first baffle 1203 and the second baffle 1204 are respectively provided with first button axis pin holes 1201 which are symmetrical in position and have the same size.

As shown in fig. 11, the upper surface of the second button 104 is a curved surface, and a second button anti-slip cross-section 1102 is provided on the curved surface for facilitating the operation, so as to increase the friction force and improve the operation reliability of the conveying device. Two third stops 1103 and a fourth stop 1104 which are the same in size extend from both sides of the second button 104, and the third stops 1103 and the fourth stops 1104 are matched with the second button groove 205 so that the second button 104 can move in the second button groove 205. The third baffle 1103 and the fourth baffle 1104 are respectively provided with second chutes 1101 which are symmetrically arranged and have the same size.

Referring to fig. 3, which is a diagram of the internal structure of the delivery device, the puncture module can be seen to further include a pull rod 1300 in the internal structure 300 of the delivery device. As shown in fig. 13, the drawbar 1300 includes a third fixing groove 1301, a guide groove 1302, and a first inclined groove 1303. Wherein, the first inclined groove 1303 is a 45-degree inclined groove.

The first inclined groove 1303 of the pull rod 1300 is connected to the first button 105 by a first shaft pin so that the pull rod moves with the movement of the first button 105. The method specifically comprises the following steps: the first button axis pin hole 1201 in the first baffle 1203 and the second baffle 1204 of the first button 105 is connected with the first inclined groove 1303 on the pull rod 1300 through the axis pin, when the first button 105 is pressed down, the first axis pin connected with the first button 105 moves from the first position to the second position in the first inclined groove 1303, and at the moment, the first inclined groove 1303 of the pull rod 1300 interacts with the first axis pin, so that the pull rod 1300 is driven to move backwards.

As shown in fig. 3, the implant holder push tube 901 is a push tube structure as shown in fig. 9, and the push tube structure 900 includes a push tube 901, a push tube fixing block 902 connected to the push tube 901, a push tube fixing block axle pin hole 903 disposed on the push tube fixing block axle pin hole 903, and a push tube fixing block center hole 904 disposed at the center of the push tube 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 mount shaft pin hole 903 is connected with the second button 104 by a second shaft pin so that the push tube mount 902 moves with the movement of the second button 104. The method specifically comprises the following steps: the third stop 1103 of the second button 104 and the second inclined groove 1101 of the fourth stop 1104 are connected with the push tube fixing block axle pin hole 903 through a second axle pin, when the second button 104 is pressed down, the second axle pin connected with the push tube fixing block 902 moves from the third position to the fourth position in the second inclined groove 1101, and at the moment, the second inclined groove 1101 of the second button 104 interacts with the second axle pin, so that the push tube 901 is driven to move forwards.

As shown in fig. 1, the housing includes an end cap 102, a main housing 101, and an end cap 103, wherein an outer front section of the main housing 101 is provided with an anti-slip texture 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 cap 103 is disposed at the other end of the main housing 101, the end cap 103 is provided with a second locking groove, the end cap 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 diagram of the end cap. 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 outer front section of the main shell 101 is provided with anti-slip lines 106, which can ensure the safety of the operation of the implant and provide certain convenience for the operator.

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.

As shown in fig. 2, one side case 200 of the transfer device includes a first fixing groove 203, a second fixing groove 201, and a push pin 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.

The push tube pin guide slot 202 in fig. 2 is a guide slot for the pin used to connect the second button 104 to the push tube retaining 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 of the pull rod 1300 so that the puncture needle fixing block 602 is clamped in the third fixing groove 1301. When the first button 105 is pressed, the first shaft pin connected with the first button 105 moves from the first position to the second position in the first inclined groove 1303, at this time, the first inclined groove 1303 of the pull rod 1300 interacts with the first shaft pin, so as to drive the pull rod 1300 to move backwards, and since the puncture needle fixing block 602 is fixed in the third fixing groove 1301 of the pull rod, the puncture needle 600 can move in the same direction while the first pull rod 1300 moves backwards.

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 pushing tube 901 is used for pushing the implant out of the holding tube 801, and the guiding rod 1001 penetrates through the implant to move the implant along the guiding rod 1001.

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. After the puncture needle 600 is inserted into the eye and the first button 105 is pressed, the first button 105 drives the pull rod 1300 to move backwards, and the puncture needle 600 is retracted under the action of the first 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 with the second button 104 through a shaft pin, so that pressing the second button 104 can drive the push tube 901 to move on the guide 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 central hole 803 of the fixing block for the holding tube is arranged in the middle of the fixing block for the holding tube 802, and the size of the central hole 803 of the fixing block for the holding tube is the same as the diameter of the holding tube 801, for example, the diameter of the holding tube 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.

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 pushing the first 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 button is pressed to drive the puncture needle to return, then the second button is pressed to drive the push pipe to push the implant which is 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 button, a second button, a puncture module and an implant holder, wherein the first button, the second button, the puncture module and the implant holder are respectively connected with the shell; the puncture module comprises a puncture needle, and the puncture needle is used for puncturing to a target position; the implant holder is used for conveying the implant to a target position; the first button and the second button are respectively arranged on the outer surface of the shell, the first button is used for controlling the puncture module to enable the puncture needle to retract, and the second button is used for controlling the implant holder to deliver the implant to the target position.

2. The implant delivery apparatus according to claim 1, wherein the puncture module further comprises a pull rod, one end of the pull rod is provided with a first inclined groove, and the first inclined groove is connected with the first button through a first shaft pin, so that the pull rod moves along with the movement of the first button.

3. The implant delivery apparatus according to claim 2, wherein the first button comprises a first baffle and a second baffle, the first baffle and the second baffle having identical first button pivot holes, respectively, the first button pivot holes being adapted to the first angled slots to allow the first pivot pins to move therein.

4. The implant delivery apparatus according to claim 2, wherein the implant holder comprises a push tube, a holding tube, and a guide rod, the guide rod is sleeved in the push tube, and the push tube is sleeved in the holding tube; 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 that the implant can move along the guide rod.

5. The implant delivery device according to claim 4, wherein the push tube has a push tube fixing block at one end thereof, the push tube fixing block is provided with a push tube fixing block axial pin hole, and the push tube fixing block axial pin hole is connected with the second button through a second shaft pin, so that the push tube moves along with the movement of the second button.

6. The implant delivery device of claim 5, wherein the second button comprises a third stop and a fourth stop, the third stop and the fourth stop are respectively provided with a second identical inclined slot, and the second inclined slot is matched with the tube pushing pin hole so as to enable the second shaft pin to move in the second inclined slot.

7. The implant delivery device according to claim 5, wherein the pull rod is provided with a guide groove in the middle, and the push tube fixing block is matched with the guide groove so as to move within the guide groove.

8. The implant delivery device according to claim 4, wherein one end of the holding tube is provided with two symmetrical U-shaped grooves for holding the implant to prevent 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.

9. The implant delivery apparatus according to claim 4, 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.

10. The implant conveying device according to claim 2, wherein the puncture needle has a puncture needle fixing block at one end thereof, and a third fixing groove is formed at the other end of the pull rod, and the puncture needle fixing block is adapted to the third fixing groove so as to be engaged with the third fixing groove.