CN212214004U

CN212214004U - Multiple implantation device for implant

Info

Publication number: CN212214004U
Application number: CN202020795208.8U
Authority: CN
Inventors: 顾东林
Original assignee: Jiangsu Bestone Medical Equipment Co ltd
Current assignee: Hisguard Suzhou Biomedical Technology Co ltd
Priority date: 2020-05-14
Filing date: 2020-05-14
Publication date: 2020-12-25
Anticipated expiration: 2030-05-14

Abstract

The utility model relates to the technical field of medical instruments, a multiple implantation device of an implant comprises a shell, a puncture mechanism, an implant holding mechanism and a conveying mechanism, wherein the puncture mechanism, the implant holding mechanism and the conveying mechanism are arranged in the shell; the implant holding mechanism comprises a central needle, the central needle is used for inserting an implant, the central needle is sleeved in the puncture needle and is fixedly connected with the shell, and the central needle is provided with an abutting bulge for abutting against the inserted implant; the conveying mechanism comprises a conveying needle and a conveying operation button. The utility model discloses can be with the implantation of a plurality of implant safety and stability to treat the target location of implanting, easy operation provides very big facility for the doctor, has reduced the operation risk.

Description

Multiple implantation device for implant

Technical Field

The utility model relates to the technical field of medical equipment, especially, relate to a device is implanted many times to implant.

Background

The eye is the most important organ in human sense, and about 80% of the knowledge in the brain is acquired by the eye. The eyes are needed to read the books and recognize words, watch pictures, watch figures, enjoy beautiful scenery and the like. The eye can distinguish light rays with different colors and brightness, and convert the information into nerve signals to be transmitted to the brain.

Glaucoma is a group of eye diseases that lead to damage to the optic nerve and to loss of vision. The most common type is open angle glaucoma, in which the drainage angle of the intraocular fluid remains open, and the less common types include angle-closure glaucoma and normotensive glaucoma. Open angle glaucoma develops slowly over time, without pain. Peripheral vision may begin to decline, followed by central vision, which if left untreated, can lead to blindness. Glaucoma is permanent once vision loss occurs.

Aqueous humor is a transparent liquid that fills 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 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 humor 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 route refers to 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 over-treatment 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.

In view of the above technical problems, it is desirable to improve.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a device for implanting an implant for a plurality of times aiming at the defects of the prior art.

In order to realize the above purpose, the utility model adopts the following technical scheme:

a multiple implantation device of an implant comprises a shell, a puncture mechanism, an implant holding mechanism and a conveying mechanism, wherein the puncture mechanism, the implant holding mechanism and the conveying mechanism are arranged in the shell; the implant holding mechanism comprises a central needle, the central needle is used for inserting an implant, the central needle is sleeved in the puncture needle and is fixedly connected with the shell, and the central needle is provided with an abutting bulge for abutting against the inserted implant; the conveying mechanism comprises a conveying needle and a conveying operation button, the conveying needle sleeve is arranged outside the central needle, the caliber of the top end part of the conveying needle is smaller than the diameter of the implant, the tail end of the conveying needle is connected with the conveying operation button, and the conveying operation button pushes the conveying needle to move axially relative to the central needle so as to push the implant to be separated from the central needle to be implanted into a target.

As a preferred scheme, the tail end of the conveying needle is connected with the conveying operation button through a push block, the tail end of the conveying needle is connected with the push block, the push block is connected with the conveying operation button in an abutting mode, the push block is further connected with a reset structure, and the reset structure is used for resetting and abutting against the conveying operation button after the push block is pushed by the conveying operation button.

Preferably, the reset structure is an elastic piece, one end of the elastic piece is connected with the push block, and the other end of the elastic piece is connected with the shell to apply force to the push block to abut against the conveying operation button.

Preferably, the top end of the delivery needle is of a necking structure, and the angle of the necking is matched with the end part of the implant so that the implant in the necking passes through the necking when stressed.

Preferably, the top end of the conveying needle is provided with a plurality of openings, and the openings are U-shaped or V-shaped.

Preferably, the conveying operation button is provided with a sliding block, the shell is provided with a plurality of layers of T-shaped sliding chutes matched with the sliding block, the T-shaped sliding chutes are distributed in parallel along the direction vertical to the central needle, the sliding strokes of the T-shaped sliding chutes are sequentially increased from the direction far away from the central needle to the direction close to the central needle, and the increasing distance is matched with the length of the implant; the T-shaped sliding chutes are connected through the baffle, and the sliding block slides away from the edge of the baffle under the thrust and enters the adjacent T-shaped sliding chutes under the pressure.

Preferably, said abutment projection is constituted by a retaining needle end having a diameter greater than the diameter of the central needle.

Preferably, the top end of the central needle is conical, and the central needle is of a hollow penetrating structure.

Compared with the prior art, the utility model discloses a device is implanted many times to implant body can carry a plurality of implants to the target location safely and reliably at the operation in-process, provides very big facility for the doctor, has reduced the operation risk.

Drawings

Fig. 1 is a schematic view of an overall structure of a multiple implantation device of an implant according to a first embodiment of the present invention;

fig. 2 is an exploded view of a multiple implantation device of an implant according to a first embodiment of the present invention;

FIG. 3 is a schematic diagram of a right shell front view of a multiple implant device of an implant according to a first embodiment of the present invention;

fig. 4 is a schematic view of a bearing diagram of a right housing of a multi-implantation device of an implant according to a first embodiment of the present invention;

FIG. 5 is a schematic diagram of a front view of a puncturing mechanism of a multiple implantation device for an implant according to a first embodiment of the present invention;

figure 6 is a schematic isometric view of a piercing mechanism of a multi-implantation device of an implant in accordance with a first embodiment of the present invention;

fig. 7 is a schematic view of the position of the puncturing mechanism when the multi-implantation device of the implant according to the first embodiment of the present invention is installed;

fig. 8 is a schematic view illustrating a withdrawing state of the puncturing mechanism of the multi-implantation device of the implant according to the first embodiment of the present invention;

fig. 9 is a schematic view of the conveying mechanism and the housing of the multi-implantation device of an implant according to the first embodiment of the present invention;

figure 10 is an isometric view of the delivery mechanism and housing of a multi-implantation device of an implant according to a first embodiment of the present invention;

fig. 11 is a schematic view illustrating a second installation groove of a multi-implantation device of an implant according to a first embodiment of the present invention has 4 layers;

fig. 12 is an enlarged partial view of an implant holding mechanism of a multi-implantation device of an implant according to a first embodiment of the present invention;

wherein: 101a, a left housing; 101b. a right housing; 102. a front end fixing sleeve; 200. a puncture mechanism; 300. a conveying mechanism; 400. an implant holding mechanism; 1011. a housing connection point; 1012. a first mounting groove; 1013. a second mounting groove; 1014. a fixed sleeve connection point; 1015. a cavity; 1016. a through hole; 1017. an elastic piece fixing block; 1018. a holding mechanism fixing block; 201. a puncture push button; 202. a projecting plate; 203. the middle part is communicated; 204. a front end restraining post; 205. puncturing needle; 301. a delivery needle; 302. a spring; 303. a push block; 304. a transport operating button; 401. a central needle; 402. an implant; 403. the needle is retained.

Detailed Description

The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure herein. The present invention can also be implemented or applied through other different specific embodiments, and various details in the present specification can be modified or changed based on different viewpoints and applications without departing from the spirit 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 first embodiment is as follows:

this embodiment addresses the deficiencies of the prior art by providing a multiple implant device for implants that can safely and stably implant multiple implants to a target site in a single implantation procedure, and it is noted that the implant, i.e., implant 402, is a foraminous drainage member sized and configured for placement in an ocular region of an eye, such as the trabecular meshwork. The implant 402 has a very small volume, the diameter is 0.3mm, the length is 0.4mm, the front section of the implant is a cone, the middle part of the front section of the implant is provided with a hole reaching the bottom, 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, the groove can be clamped on the trabecular meshwork, and the holes can play a role of drainage, so that the intraocular pressure is ensured to be at a normal value to achieve the purpose of treating glaucoma.

As shown in fig. 1 to 12, the multiple implantation device of an implant according to this embodiment includes a housing, a puncture mechanism 200, an implant holding mechanism 400, and a conveying mechanism 300, the puncture mechanism 200 includes a puncture needle 205 and a puncture push button 201 connected to the puncture needle 205, one end of the housing has a through hole 1016 for the puncture needle 205 to pass through, the through hole 1016 is a cylindrical slot, so as to axially position the top end of the puncture mechanism 200, and the puncture push button 201 drives the puncture needle 205 to axially move relative to the housing; the implant holding mechanism 400 comprises a central needle 401, the central needle 401 is used for inserting an implant 402, the central needle 401 is sleeved in the puncture needle 205 and is fixedly connected with the shell, and an abutting bulge is arranged on the central needle 401 to abut against the inserted implant 402; the conveying mechanism 300 comprises a conveying needle 301 and a conveying operation button 304, wherein the conveying needle 301 is sleeved outside the central needle 401, the caliber of the top end part of the conveying needle 301 is smaller than the diameter of the implant 402, the tail end of the conveying needle 301 is connected with the conveying operation button 304, and the conveying operation button 304 pushes the conveying needle 301 to move axially relative to the central needle 401 so as to abut against and push the implant 402 to be separated from the target position implanted by the central needle 401.

Specifically, the implant device has an advantageous ergonomic shape for grasping and manipulation, and in use, a user can grasp the implant device with his fingers, and the thumb can push the puncture push button 201 and push and press the delivery button 304 freely, the housing comprises a left housing 101a and a right housing 101b, which contain at least two fasteners to secure the device in a stable assembled state after assembly, and the left and right housings 101b are symmetrical about an intersecting plane, and only the right housing 101b is described in detail below, as shown in fig. 3-4, the housing connection points 1011 are used for fixing the rear ends of the two housings, and the housing connection can be in a screw connection, riveting connection or the like, preferably in this embodiment; the first and second mounting grooves 1012, 1013 are respectively for engaging with the puncture mechanism 200 and the transportation mechanism 300, and the front end of the housing has a semi-cylindrical protrusion as a fixing sleeve connection point 1014, where it is connected with the front end fixing sleeve 102, and the connection method can be a screw connection, riveting and bonding method, and the like, and in this embodiment, the screw connection is preferred; the fixing sleeve connecting point 1014 is internally provided with a cavity 1015, the front end of the puncture mechanism 200 is provided with a front end limiting column 204, and the front end limiting column 204 can reciprocate in the cavity 1015; the through hole 1016 on the fixation sheath attachment point 1014 is used for the retention of the puncture needle 205; an elastic element fixing block 1017 and a retaining mechanism fixing block 1018 are further arranged in the middle of the shell, and the left shell 101b and the right shell 101b are combined to be used for fixing the elastic element and the retaining mechanism respectively.

As shown in fig. 5-6, the puncture mechanism 200 is a rectangular through-hole in the middle, the front-end limiting column 204 is connected with the puncture needle 205, the puncture needle 205 is connected with the puncture push button 201 through a connecting rod, a protruding plate 202 is arranged below the puncture push button 201, the thickness of the plate is matched with the width of a groove of a first mounting groove 1012, when the puncture push button 201 is pushed by hand, the puncture mechanism 200 can only move in the front-back direction through the limitation of the first mounting groove 1012, the front-end limiting column 204 moves in a cavity 1015 of the housing, the middle through-hole 203 is matched with two fixed blocks on the housing, a puncture force is provided for a forward thrust of the puncture push button 201 in the puncture process, and a reverse force is provided for the puncture push button 201 after the puncture is finished, so that the puncture needle 205 can be completed.

The top end of the central needle 401 of the implant holding mechanism 400 is conical, the central needle 401 is of a hollow penetrating structure, and the central needle is always kept smooth after being implanted, so that liquid can flow out. The abutting projection of the central needle 401 may be one or more, and in a case of one, it is preferably formed by an end of the holding needle 403 having a diameter larger than that of the central needle 401, the central needle 401 and the holding needle 403 are concentric, and the tail end is fixed to the holding mechanism fixing block 1018 of the housing at the same time, and in this case, the connection mode at the connection position may be a connection mode such as an adhesive riveting mode. Wherein the back end of the implant 402 is installed at the junction of the central needle 401 and the retaining needle 403, the central needle 401 is used for placing the implant 402, and the retaining needle 403 is used for keeping the implant 402 in a stable state; the top end of the delivery needle 301 is of a necking structure, the angle of the necking is matched with the end part of the implant 402 so as to lead the implant 402 in the necking to pass through the necking when being stressed, and the angle is preferably the angle of the head end of the implant 402; the top end of the delivery needle 301 further has a plurality of openings, the plurality of openings may be 2 openings, 3 openings, 4 openings, and the like, preferably, two symmetrical openings, the openings are U-shaped or V-shaped, and the openings can provide a certain elastic deformation to the implant 402 in the throat when the implant 402 is forced to pass through the throat, so as to reduce the pressure on the implant 402 and avoid physical damage to the implant.

The tail end of the conveying needle 301 is connected with a conveying operation button 304 through a push block 303, the tail end of the conveying needle 301 is connected with the push block 303, the push block 303 is connected with the conveying operation button 304 in an abutting mode, the push block 303 is further connected with a reset structure, the reset structure is used for resetting and abutting against the conveying operation button 304 after the push block 303 is pushed by the conveying operation button 304, the reset structure can be a spring 302, a pressure spring 302 and the like, the reset structure of the embodiment is an elastic member, preferably the spring 302, one end of the spring 302 is connected with the push block 303, the other end of the spring 302 is connected with the shell so as to apply force to the push block 303 to abut against the conveying operation button 304, and the bottom end of the conveying operation button 304 is provided with a T-shaped groove shape which can be meshed with a retaining mechanism fixing; when the conveying operation button 304 receives the pushing force, the pushing block 303 is also subjected to the pushing force, the center of the pushing block 303 is connected with the conveying needle 301, the connection mode can be a threaded connection, riveting, bonding and other modes, and riveting is preferred in the embodiment; a round hole is formed in the periphery of the connecting part of the push block 303 and the conveying needle 301 for accommodating one end of the spring 302, and the other end of the spring 302 is arranged on a round hole of an elastic part fixing block 1017 of the shell; the conveying operation button is provided with a sliding block, the shell is provided with a plurality of layers of T-shaped sliding grooves matched with the sliding block, the T-shaped sliding grooves are distributed in parallel along the direction vertical to the central needle 401, the sliding strokes of the T-shaped sliding grooves are sequentially increased from the direction far away from the central needle 401 to the direction close to the central needle 401, and the increasing distance is matched with the length of the implant 402; the T-shaped sliding chutes are connected through the baffle plate, and the sliding block slides away from the edge of the baffle plate under the thrust and enters the adjacent T-shaped sliding chutes under the pressure; when the conveying mechanism 300 is installed, the sliding block is meshed with the T-shaped sliding groove at the uppermost layer in the initial state, at this time, the conveying operation button 304 can only be pushed forwards due to the limitation of the groove shape, when the tail end of the sliding block passes through the baffle at the layer, the conveying operation button 304 can be pressed downwards, and at this time, the conveying operation button 304 is released; due to the action of the spring 302, the whole delivery mechanism 300 returns to the T-shaped groove of the second layer, the delivery needle 301 retracts to a certain extent, due to the length of the implant 402 more than one stroke, when the delivery needle 301 retracts, the end of the implant 402 in the retraction is pressed to be extruded to the front end of the delivery needle 301, and when the pushing force is exerted again, the delivery mechanism 300 can advance forwards in the T-shaped groove of the current layer, and the implantation of the second implant 402 is completed; in this embodiment, a two-layer groove shape is preferred, but when the number of the implant bodies is more, for example, 4, the groove shape on the housing may be changed to 4 layers as shown in fig. 11.

The implantation method of the multi-implantation device based on the implant body comprises the following steps:

s1, pushing a puncture push button 201 to drive a puncture needle 205 to puncture a target position to be implanted; after puncture, the puncture push button 201 is pushed back to withdraw the puncture needle 205;

s2, operating the conveying operation button 304 to drive the conveying needle 301 to push the implant 402 on the central needle 401 into a target position; operating the delivery operation button 304 to drive the delivery needle 301 to push the remaining implant 402 on the central needle 401 into the target position;

s3, withdrawing the multiple implantation device of the implant

After the implant 402 is stably installed on the implantation device, it is first necessary to provide a forward thrust of the puncture push button 201 during the operation to ensure that the puncture needle 205 can puncture into the epidermal tissue, and the retraction operation is not performed, when the puncture needle 205 passes through the tissue to reach the target implantation position, a reverse pushing force is provided to the puncture push button 201 to complete the retraction of the puncture needle 205, at which time the implant 402 and the delivery needle 301 reach the target position, an implant 402 can be implanted by applying a pushing force to the delivery operation button 304, and the delivery operation button 304 is pressed, the slider of the delivery operation button 304 reaches the second layer T-shaped sliding groove of the housing, and can be retracted by the elastic force of the spring 302, because the rear end limit of the second layer of T-shaped chute is farther than that of the first layer of T-shaped chute, the delivery needle 301 can be retracted behind the second implant 402, and the second implant 402 can be implanted again by applying the pushing force to the delivery operation button 304; the present invention preferably implants two implants 402, but not limited to two (one or more implants in this embodiment), and when more implants are implanted, the above steps are repeated to complete the implantation of multiple implants 402.

Compared with the prior art, the embodiment can safely and reliably convey a plurality of implants to the target position in the operation process, thereby providing great convenience for doctors and reducing the operation risk.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims

1. A multiple implantation device of an implant is characterized by comprising a shell, a puncture mechanism, an implant holding mechanism and a conveying mechanism, wherein the puncture mechanism, the implant holding mechanism and the conveying mechanism are arranged in the shell; the implant holding mechanism comprises a central needle, the central needle is used for inserting an implant, the central needle is sleeved in the puncture needle and is fixedly connected with the shell, and the central needle is provided with an abutting bulge for abutting against the inserted implant; the conveying mechanism comprises a conveying needle and a conveying operation button, the conveying needle sleeve is arranged outside the central needle, the caliber of the top end part of the conveying needle is smaller than the diameter of the implant, the tail end of the conveying needle is connected with the conveying operation button, and the conveying operation button pushes the conveying needle to move axially relative to the central needle so as to push the implant to be separated from the central needle to be implanted into a target.

2. The multiple implant implanting device of claim 1, wherein the rear end of the delivery needle is connected to the delivery button through a pushing block, the rear end of the delivery needle is connected to the pushing block, the pushing block is connected to the delivery button in an abutting manner, and the pushing block is further connected to a reset structure for resetting against the delivery button after the pushing block is pushed by the delivery button.

3. The multiple implant device of claim 2, wherein said restoring structure is an elastic member, one end of said elastic member is connected to said pushing block, and the other end of said elastic member is connected to said housing for urging said pushing block against said delivery operating knob.

4. The multiple implant device of claim 3, wherein the tip of the delivery needle is a constriction, the angle of the constriction matching the end of the implant to force the implant in the constriction out of the constriction.

5. The multiple implant device of claim 4, wherein said delivery needle has a plurality of openings at its tip, said openings being U-shaped or V-shaped.

6. The multiple implant device of claim 4, wherein said delivery button has a sliding block, said housing has a plurality of T-shaped sliding slots matching with the sliding block, said T-shaped sliding slots are distributed in parallel along a direction perpendicular to the central needle, the sliding stroke of said T-shaped sliding slots increases from a direction away from the central needle to a direction close to the central needle, and the increasing distance matches with the length of the implant; the T-shaped sliding chutes are connected through the baffle, and the sliding block slides away from the edge of the baffle under the thrust and enters the adjacent T-shaped sliding chutes under the pressure.

7. The multiple implant device of claim 1, wherein said abutment projection is formed by a retaining pin end having a diameter greater than the diameter of the central pin.

8. The multiple implant device of claim 1, wherein said central needle tip is tapered and said central needle is a hollow through-structure.