CN110693647B - Implant conveying device - Google Patents

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, afirst button 105, asecond button 104, a piercing module, and an implant holder, which are respectively connected to the housing.

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

As shown in FIG. 2, aside housing 200 of the delivery device includes afirst button slot 204 that fits into thefirst button 105 and asecond button slot 205 that fits into thesecond button 104. Thefirst button 105 is moved from the first position to the second position by pressing in a direction perpendicular to the housing; thesecond 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 thefirst button 105 is a curved surface, and the curved surface is provided with a firstbutton anti-slip cross-section 1202 for facilitating operation, so as to increase friction and improve the operation reliability of the conveying device. Twofirst stoppers 1203 and twosecond stoppers 1204 with the same size extend out of thefirst button 105 on two sides of thefirst button 105, and thefirst stoppers 1203 and thesecond stoppers 1204 are matched with thefirst button groove 204 so that thefirst button 105 can move in thefirst button groove 204. Thefirst baffle 1203 and thesecond 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 thesecond button 104 is a curved surface, and a secondbutton 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. Twothird stops 1103 and afourth stop 1104 which are the same in size extend from both sides of thesecond button 104, and thethird stops 1103 and thefourth stops 1104 are matched with thesecond button groove 205 so that thesecond button 104 can move in thesecond button groove 205. Thethird baffle 1103 and thefourth baffle 1104 are respectively provided withsecond 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 apull rod 1300 in theinternal structure 300 of the delivery device. As shown in fig. 13, thedrawbar 1300 includes athird fixing groove 1301, aguide groove 1302, and a firstinclined groove 1303. Wherein, the firstinclined groove 1303 is a 45-degree inclined groove.

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

As shown in fig. 3, the implantholder push tube 901 is a push tube structure as shown in fig. 9, and thepush tube structure 900 includes apush tube 901, a pushtube fixing block 902 connected to thepush tube 901, a push tube fixing blockaxle pin hole 903 disposed on the push tube fixing blockaxle pin hole 903, and a push tube fixingblock center hole 904 disposed at the center of the pushtube fixing block 902.

The pushtube retaining block 902 fits into the pullrod guide slot 1302 to allow the pushtube retaining block 902 to move within the guide slot.

The push tube mountshaft pin hole 903 is connected with thesecond button 104 by a second shaft pin so that thepush tube mount 902 moves with the movement of thesecond button 104. The method specifically comprises the following steps: thethird stop 1103 of thesecond button 104 and the secondinclined groove 1101 of thefourth stop 1104 are connected with the push tube fixing blockaxle pin hole 903 through a second axle pin, when thesecond button 104 is pressed down, the second axle pin connected with the pushtube fixing block 902 moves from the third position to the fourth position in the secondinclined groove 1101, and at the moment, the secondinclined groove 1101 of thesecond button 104 interacts with the second axle pin, so that thepush tube 901 is driven to move forwards.

As shown in fig. 1, the housing includes anend cap 102, amain housing 101, and anend cap 103, wherein an outer front section of themain housing 101 is provided with ananti-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.

Themain 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 themain housing 101, in order to facilitate the assembly of internal components. Theend cap 102 is arranged at one end of themain housing 101, theend cap 102 is provided with a first clamping groove, and theend 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. Theend cap 103 is disposed at the other end of themain housing 101, theend cap 103 is provided with a second locking groove, theend cap 103 is fixedly connected to the main housing through the second locking groove and is connected to themain 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 themain shell 101 is provided withanti-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 theend cap 102 is aplane 401, which is coplanar with themain housing 101. Wherein the end cap is tapered.

As shown in fig. 5, twofirst locking slots 402 are formed in theend cap 102, and theend cap 102 is fixedly connected to themain housing 101 through thefirst locking slots 402. Alimit bump 403 is also included, and thelimit bump 403 is fixedly connected with the punctureneedle guide cap 500.

Thepuncture needle 600 is further provided with a punctureneedle guide cap 500, a guide hole for thepuncture needle 600 to pass through is formed in the punctureneedle guide cap 500, a Y-shapedgroove 502 is formed in the surface of the punctureneedle guide cap 500, a limitingbump 403 is arranged inside theend cap 102, and the Y-shapedgroove 502 is matched with the limitingbump 403 to fix the punctureneedle guide cap 500.

As shown in fig. 6, the structure of the puncture needle guide cap, the punctureneedle guide cap 500 comprises amain body 501, a Y-shapedgroove 502, and arear seat 503, wherein themain body 501 is tapered to fit theend cap 102, and the diameter of therear seat 503 is the same as that of the end of themain housing 101 connected to theend cap 102. Themain body 501 of the punctureneedle guide cap 500 is internally provided with a guide hole, thepuncture needle 600 can move in the guide hole, and the diameter of the guide hole is 0.7mm-0.9 mm.

In this embodiment, theend cap 102 mainly functions as two components 1: the left shell and the right shell are fixed to a certain extent; 2: the punctureneedle guide cap 500 is fixed, a Y-shaped groove is formed in the punctureneedle 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, oneside case 200 of the transfer device includes afirst fixing groove 203, asecond fixing groove 201, and a pushpin guide groove 202.

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

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

The push tubepin guide slot 202 in fig. 2 is a guide slot for the pin used to connect thesecond button 104 to the pushtube retaining block 902.

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

The punctureneedle fixing block 602 is matched with thethird fixing groove 1301 of thepull rod 1300 so that the punctureneedle fixing block 602 is clamped in thethird fixing groove 1301. When thefirst button 105 is pressed, the first shaft pin connected with thefirst button 105 moves from the first position to the second position in the firstinclined groove 1303, at this time, the firstinclined groove 1303 of thepull rod 1300 interacts with the first shaft pin, so as to drive thepull rod 1300 to move backwards, and since the punctureneedle fixing block 602 is fixed in thethird fixing groove 1301 of the pull rod, thepuncture needle 600 can move in the same direction while thefirst pull rod 1300 moves backwards.

Theguide rod 1001 is sleeved in thepush pipe 901 through a push pipe fixingblock center hole 904, and thepush pipe 901 is sleeved in the holdingpipe 801 through a holding pipe fixingblock center hole 803; the holdingtube 801 is sleeved in thepuncture needle 600 through a puncture needle fixingblock center hole 604; wherein the holdingtube 801 is used for holding the implant, the pushingtube 901 is used for pushing the implant out of the holdingtube 801, and the guidingrod 1001 penetrates through the implant to move the implant along the guidingrod 1001.

In this embodiment, one end of thepuncture needle 600 is an inclined surface and is fixed on the punctureneedle fixing block 602, and the punctureneedle fixing block 602 is fixed in thethird fixing groove 1301 of thepull 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 thepull rod 1300. Thepuncture needle 600 is formed in a slant surface so as to easily penetrate the eye, and the size of thepuncture needle 600 may range from 22G to 30G. The smaller the diameter of thepuncture needle 600, the better, e.g., thepuncture 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. Thepuncture needle 600 is a thin-walled or ultra-thin-walled needle, so that the outer diameter of thepuncture 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 theneedle 600 is 2mm long to the tilt of the bevel, which can be set according to the actual situation. The length of thepuncture needle 300 is 30mm in this embodiment. After thepuncture needle 600 is inserted into the eye and thefirst button 105 is pressed, thefirst button 105 drives thepull rod 1300 to move backwards, and thepuncture needle 600 is retracted under the action of thefirst button 105 because thethird fixing groove 1301 of thepull rod 1300 is fixed with the punctureneedle fixing block 602.

The holdingtube 801 is fitted inside thepuncture needle 600 and the other end thereof is fixed to the holdingtube fixing block 802, and the holdingtube fixing block 802 is fixed to thefirst fixing groove 203 of the housing, so that the holdingtube 801 and the housing are fixed together and are fixed in position during the entire implant delivery process. The length of the holdingtube 801 is about 30 mm. One end of the holdingtube 801 is provided with two symmetricalU-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 aU-shaped slot 804 at one end, the end of the retainingtube 801 having the U-shaped slot will be drawn inwardly to hold the implant in place. The outer diameter of theretention tube 801 should be smaller than the inner diameter of theintroducer needle 600 to allow relative movement between theretention tube 801 and theintroducer needle 600. While the inner diameter of the holdingtube 801 is larger than the maximum outer diameter of the implant so that the implant can be fixed in the holdingtube 801. The holdingtube 801 of the present embodiment has an inner diameter of about 0.3mm and a length of 30 mm.

One end of thepush tube 901 is fixed on the pushtube fixing block 902, and the pushtube fixing block 902 is connected with thesecond button 104 through a shaft pin, so that pressing thesecond button 104 can drive thepush tube 901 to move on the guide slot position. The inner diameter of thepush tube 901 is larger than 0.12mm, and the outer diameter of thepush tube 901 is smaller than 0.3mm, i.e. smaller than the outer diameter of the implant and the holdingtube 801, so that thepush tube 901 and the holdingtube 801 can move relatively.

Theguide rod 1001 and the guiderod fixing block 1002 are fixed together, the guiderod fixing block 1002 is fixed in thesecond fixing groove 201 of the housing, the diameter of theguide rod 1001 is 0.1mm, and the inner diameter of the implant is 0.12mm, so that theguide rod 1001 can pass through the implant, and the implant can move on theguide rod 1001 in the axial direction. Theguide 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 pushpipe fixing block 902 can move in theguide groove 1302 in the middle of thepull 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, acentral hole 604 of the fixing block is formed in the middle of the fixingblock 602, and the size of thecentral hole 604 is the same as the diameter of thepuncture needle 600, for example, the diameter of thepuncture needle 600 is 0.56 mm; acentral hole 803 of the fixing block for the holding tube is arranged in the middle of the fixing block for the holdingtube 802, and the size of thecentral hole 803 of the fixing block for the holding tube is the same as the diameter of the holdingtube 801, for example, the diameter of the holdingtube 801 is 0.26 mm; a push pipe fixingblock center hole 904 is formed in the middle of the pushpipe fixing block 902, and the size of the push pipe fixingblock center hole 904 is the same as the diameter of thepush pipe 901, for example, the diameter of thepush pipe 901 is 0.2 mm; the diameter of theguide 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 theintroducer needle 600, theretention tube structure 800, thepush tube structure 900, and theguide rod structure 1000, where theimplant 1500 is positioned at one end of theretention tube structure 800 and the retention tube holds theimplant 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.

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.

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 (6)

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 retreat, and the second button is used for controlling the implant holder to convey the implant to a target position;

the puncture module further 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 as to enable the pull rod to move along with the movement of the first button;

the implant holder comprises a push tube, a holding tube and a guide rod, wherein 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 as to enable the implant to move along the guide rod;

one end of the push pipe is provided with a push pipe fixing block, the push pipe fixing block is provided with a push pipe fixing block shaft pin hole, 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;

the second button comprises a third baffle and a fourth baffle, the third baffle and the fourth baffle are respectively provided with a same second inclined groove, and the second inclined grooves are matched with the pin holes of the push pipe pins so as to enable the second shaft pins to move in the second inclined grooves.

2. The implant delivery apparatus according to claim 1, wherein the first button comprises a first stop plate and a second stop plate, the first stop plate and the second stop plate each having a same first button pivot hole, the first button pivot hole being adapted to the first angled slot for moving the first pivot pin therein.

3. The implant delivery device according to claim 2, 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.

4. The implant delivery device according to claim 3, 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.

5. 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.

6. 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.

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