CN113262102A

CN113262102A - Novel corneal stroma lens takes out tweezers

Info

Publication number: CN113262102A
Application number: CN202110461976.9A
Authority: CN
Inventors: 姜黎; 雷晓华; 曾庆延; 舒宝; 谭维娜; 范文雨; 赵聪; 蒋莎
Original assignee: Hankou Aier Eye Hospital Co Ltd
Current assignee: Hankou Aier Eye Hospital Co Ltd
Priority date: 2021-04-27
Filing date: 2021-04-27
Publication date: 2021-08-17

Abstract

The invention discloses novel corneal stroma lens taking-out forceps, which comprise a handle, wherein one side of the handle is sleeved with a sleeve, the inner wall of the sleeve is provided with an internal thread, the outer wall of the handle is provided with an external thread matched with the internal thread of the sleeve, one side of the sleeve far away from the handle is fixedly connected with a first round pipe, one end of the first round pipe far away from the sleeve is fixedly connected with a second round pipe, the pipe orifice of the first round pipe is communicated with the inner cavity of the sleeve, one sides of the top and the bottom of the handle are fixedly connected with a pressing plate, a movable block is arranged in the handle, the top and the bottom of the movable block are fixedly connected with limit blocks, the top and the bottom of the handle are both provided with movable ports, and the limit blocks penetrate through the movable ports and extend to the outer side of the handle, and can be convenient for disinfecting the device, etc.

Description

Novel corneal stroma lens takes out tweezers

Technical Field

The invention relates to the technical field of femtosecond laser small-incision corneal lenticule extraction, in particular to novel corneal stroma lens extraction forceps.

Background

In SMILE surgery, a corneal stromal lens is produced by scanning the corneal layer with femtosecond laser at two different depths, separating the upper and lower layers of the stromal lens, and then removing the corneal stromal lens from the small peripheral incision using lens removal forceps. When the lens with poor scanning or the lens with too thin scanning is separated, the lens can be punctured, the lens is broken or the lens residue is not easy to take out, at the moment, the lens is required to be taken out by taking out the forceps deeply into the corneal layer and taking out the lens from the far end, and if the radian of the forceps is not proper, the corneal incision can be torn.

One end of the existing lens taking-out forceps clip is designed to be concave, so that a corneal incision is torn when a far-end lens between corneal layers is taken out, or the far-end residual lens is difficult to take out, so that surgical complications are caused.

In order to correct the defects, the lens taking-out forceps matched with the cornea shape is needed to clamp the residual lens, so that more convenience is brought to the operation, and the success rate of the operation is improved.

Disclosure of Invention

The invention solves the technical problem that one end of a lens taking-out forceps clip in the prior art is designed to be concave, so that corneal incision tearing is caused when a far-end lens between corneal lamellae is taken out, or surgical complications are caused by difficulty in taking out the far-end residual lens, and provides novel corneal stroma lens taking-out forceps. The novel corneal stroma lens taking-out forceps has the characteristics that the lens is convenient to take out, the device can be conveniently disinfected, and the like.

In order to achieve the purpose, the invention provides the following technical scheme: a novel forceps for taking out a corneal stroma lens comprises a handle, wherein a sleeve is sleeved on one side of the handle, an internal thread is arranged on the inner wall of the sleeve, an external thread matched with the internal thread of the sleeve is arranged on the outer wall of the handle, a first round pipe is fixedly connected to one side, far away from the handle, of the sleeve, a second round pipe is fixedly connected to one end, far away from the sleeve, of the first round pipe, the pipe orifice of the first round pipe is communicated with the inner cavity of the sleeve, pressing plates are fixedly connected to one sides of the top and the bottom of the handle, a movable block is arranged in the handle, limiting blocks are fixedly connected to the top and the bottom of the movable block, movable openings are arranged at the top and the bottom of the handle, the limiting blocks penetrate through the movable openings and extend to the outer side of the handle, a first fixing block is fixedly connected to one side, close to the handle, of the pressing plates are movably connected with a first connecting block through a rotating shaft, the opposite side of first connecting block is through pivot swing joint on the stopper, the stopper is close to the first spring of telescopic one side fixedly connected with, the opposite side fixed connection of first spring is on one side inner wall of activity mouth, set up threaded hole on the activity piece, threaded internal thread is connected with the threaded rod, the threaded rod is close to telescopic one end and runs through the lateral wall of handle to extend to the outside of handle, the end of second pipe is equipped with fixture.

Preferably, the two pressing plates are symmetrically arranged about the central axis of the handle.

Preferably, one side of the pressing plate, which is far away from the handle, is provided with a plurality of hemispherical anti-skidding blocks, and anti-skidding threads are formed on the anti-skidding blocks.

Preferably, the second circular pipe is arc-shaped, and the second circular pipe is convex upwards.

Preferably, the clamping mechanism comprises two second fixed blocks, the two second fixed blocks are respectively and fixedly connected to the top and the bottom inner wall of the second circular tube, a rotating block is movably connected to the front end face of the second fixed block, one side of the rotating block, far away from the first circular tube, of each clamping plate is fixedly connected with a second spring, a moving block is arranged on one side of the rotating block, far away from the clamping plates, of each clamping plate, two second connecting blocks are movably connected to the front end face of each moving block through a rotating shaft, the other sides of the two second connecting blocks are respectively and movably connected to the front end faces of the two rotating blocks through rotating shafts, an iron wire is arranged on one side, far away from the rotating block, of each moving block, and the other side of the iron wire penetrates through the second circular tube, the first circular tube and the sleeve and is fixedly connected to one end of the threaded rod.

Preferably, the front end face of the handle is provided with an observation port, the observation port is positioned on one side of the movable block, and the inner wall of the observation port is provided with a transparent glass block.

Preferably, the movable opening is rectangular, and the height of the limiting block is equal to that of the movable opening.

Compared with the prior art, the invention has the beneficial effects that:

1. one end of the lens taking out forceps clip is in a convex design, is more matched with the shape of a corneal lens, can be used for taking out the lens more conveniently, is particularly more convenient for taking out residual lenses, cannot cause corneal incision tearing, and improves the success rate of surgery;

2. through the matching among the first round pipe, the second round pipe, the sleeve, the threaded rod, the movable block and the iron wire, the clamping mechanism can be conveniently disassembled so as to disinfect the clamping mechanism, the first round pipe and the second round pipe and prevent bacteria from breeding;

3. through the cooperation between pressing the clamp plate and the non slipping spur, can improve the frictional force between pressing the clamp plate and the hand to avoid the hand to skid, and cause the unnecessary damage, thereby improve the safety in utilization of the device.

Drawings

FIG. 1 is an overall schematic view of the present invention;

FIG. 2 is a schematic front view of FIG. 1;

FIG. 3 is a top view of the handle, the movable opening and the limiting block;

FIG. 4 is an enlarged view taken at A in FIG. 1;

FIG. 5 is an enlarged view of FIG. 1 at B;

fig. 6 is an enlarged view of fig. 1 at C.

Reference numbers in the figures: 1. a handle; 2. a sleeve; 3. a first circular tube; 4. a second circular tube; 5. a pressing plate; 6. a movable block; 7. a limiting block; 8. a movable opening; 9. a first fixed block; 10. a first connection block; 11. a first spring; 12. a threaded rod; 13. anti-skid blocks; 14. a second fixed block; 15. rotating the block; 16. a clamping plate; 17. a second spring; 18. a moving block; 19. a second connecting block; 20. iron wires; 21. a viewing port.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-6, the present invention provides a technical solution: a novel forceps for taking out a corneal stroma lens comprises a handle 1, wherein a sleeve 2 is sleeved on one side of the handle 1, an internal thread is arranged on the inner wall of the sleeve 2, an external thread matched with the internal thread of the sleeve 2 is arranged on the outer wall of the handle 1, a first round pipe 3 is fixedly connected to one side, away from the handle 1, of the sleeve 2, a second round pipe 4 is fixedly connected to one end, away from the sleeve 2, of the first round pipe 3, the second round pipe 4 is arc-shaped, the second round pipe 4 protrudes upwards, one end, away from the forceps clamp, of the lens is of a convex design and is more matched with the shape of a corneal lens, the lens can be taken out more conveniently, particularly, the lens is taken out more conveniently, corneal incision tearing cannot be caused, the success rate of surgery is improved, the pipe orifice of the first round pipe 3 is communicated with the inner cavity of the sleeve 2, pressing plates 5 are fixedly connected to one side of the top and the bottom of the handle 1, and the two pressing plates 5 are arranged symmetrically about the central axis of the handle 1, the convenient-to-press clamp device comprises a clamp plate 5, a plurality of hemispherical anti-skidding blocks 13 are arranged on one side of the clamp plate 5, which is far away from a handle 1, anti-skidding threads are arranged on the anti-skidding blocks 13, the friction force between the clamp plate 5 and a hand can be improved through the matching between the clamp plate 5 and the anti-skidding blocks 13, so that the hand is prevented from skidding and unnecessary damage is avoided, the use safety of the device is improved, a movable block 6 is arranged in the handle 1, an observation opening 21 is arranged on the front end face of the handle 1, the observation opening 21 is positioned on one side of the movable block 6, a transparent glass block is arranged on the inner wall of the observation opening 21, a threaded rod 12 is convenient to be in threaded connection with the movable block 6, the convenience of installation and disassembly of a clamping mechanism is improved, limit blocks 7 are fixedly connected to the top and the bottom of the movable block 6, movable openings 8 are arranged on the top and the bottom of the handle 1, the movable openings 8 are rectangular, the height of the limit blocks 7 is equal to the height of the movable openings 8, the stability of the left and right movement of the movable block 6 is improved, thereby improving the use stability of the device, the limiting block 7 passes through the movable opening 8 and extends to the outer side of the handle 1, one side of the pressing plate 5 close to the handle 1 is fixedly connected with a first fixed block 9, the first fixed block 9 is movably connected with a first connecting block 10 through a rotating shaft, the other side of the first connecting block 10 is movably connected with the limiting block 7 through a rotating shaft, one side of the limiting block 7 close to the sleeve 2 is fixedly connected with a first spring 11, the other side of the first spring 11 is fixedly connected with the inner wall of one side of the movable opening 8, the movable block 6 is provided with a threaded hole, a threaded rod 12 is in threaded female connection, one end of the threaded rod 12 close to the sleeve 2 penetrates through the side wall of the handle 1 and extends to the outer side of the handle 1, the tail end of the second round tube 4 is provided with a clamping mechanism, the clamping mechanism comprises two second fixed blocks 14, two second fixed blocks 14 are fixed connection respectively at the top and the bottom inner wall of second pipe 4, and the preceding terminal surface swing joint of second fixed block 14 has turning block 15, one side fixedly connected with grip block 16 of first pipe 3 is kept away from to turning block 15, fixedly connected with second spring 17 between two grip blocks 16, one side that grip block 16 was kept away from to turning block 15 is provided with movable block 18, the preceding terminal surface of movable block 18 has two second connecting blocks 19 through pivot swing joint, the opposite side of two second connecting blocks 19 is respectively at the preceding terminal surface of two turning blocks 15 through pivot swing joint, one side that turning block 15 was kept away from to movable block 18 is provided with iron wire 20, second pipe 4 is passed to the opposite side of iron wire 20, first pipe 3 and sleeve 2, and fixed connection is in the one end of threaded rod 12, can realize pressing from both sides of lens through fixture and get.

The working principle is as follows: when the invention is used, a user can hold the handle 1 by hand to extend the second circular tube 4 and the first circular tube 3 from a small incision on the periphery of the corneal layer, then press the pressing plate 5, then push the first connecting block 10 through the pressing plate 5 and compress the first spring 11, so as to push the limiting block 7 through the first connecting block 10 and make the movable block 6 move towards the sleeve 2, then the movable block 6 drives the threaded rod 12 to move, then push the iron wire 20 to move through the threaded rod 12 and further push the movable block 18 to move towards the clamping plate 16, so as to push the second connecting block 19 to rotate through the movable block 18, make the two clamping plates 16 far away from each other and stretch the second spring 17, then the two clamping plates 16 can be close to the lens, then release the pressing plate 5, so as to clamp the lens through the elastic reset action of the first spring 11 and the second spring 17, at this time, the device can be moved to take out the lens from the cornea, when the sleeve 2, the first circular tube 3 and the second circular tube 4 need to be taken off, the pressing plate 5 can be pressed, meanwhile, the sleeve 2 can be rotated until the sleeve 2 is unscrewed from the handle 1, the threaded rod 12 is rotated to unscrew the threaded rod 12 from the movable block 6, and then the sleeve 2, the first circular tube 3, the second circular tube 4 and the clamping plate 16 can be sterilized to prevent bacteria from polluting the device and causing the infection of the operation.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a novel corneal stroma lens takes out tweezers, includes handle (1), its characterized in that: the handle is characterized in that a sleeve (2) is sleeved on one side of the handle (1), an internal thread is formed on the inner wall of the sleeve (2), an external thread matched with the internal thread of the sleeve (2) is formed on the outer wall of the handle (1), a first round pipe (3) is fixedly connected to one side, away from the handle (1), of the sleeve (2), a second round pipe (4) is fixedly connected to one end, away from the sleeve (2), of the first round pipe (3), a pipe opening of the first round pipe (3) is communicated with an inner cavity of the sleeve (2), pressing plates (5) are fixedly connected to one sides of the top and the bottom of the handle (1), a movable block (6) is arranged in the handle (1), limit blocks (7) are fixedly connected to the top and the bottom of the movable block (6), movable openings (8) are formed in the top and the bottom of the handle (1), and the limit blocks (7) pass through the movable openings (8), and extends to the outer side of the handle (1), one side of the pressing plate (5) close to the handle (1) is fixedly connected with a first fixing block (9), the first fixed block (9) is movably connected with a first connecting block (10) through a rotating shaft, the other side of the first connecting block (10) is movably connected on the limiting block (7) through a rotating shaft, one side of the limiting block (7) close to the sleeve (2) is fixedly connected with a first spring (11), the other side of the first spring (11) is fixedly connected on the inner wall of one side of the movable opening (8), a threaded hole is arranged on the movable block (6), a threaded rod (12) is connected with the internal thread of the thread, one end of the threaded rod (12) close to the sleeve (2) penetrates through the side wall of the handle (1), and the tail end of the second round pipe (4) is provided with a clamping mechanism.

2. The novel corneal stromal lens extraction forceps as described in claim 1, wherein: the two pressing plates (5) are symmetrically arranged around the central axis of the handle (1).

3. The novel corneal stromal lens extraction forceps as described in claim 1, wherein: one side of the pressing plate (5) far away from the handle (1) is provided with a plurality of hemispherical anti-skidding blocks (13), and anti-skidding threads are arranged on the anti-skidding blocks (13).

4. The novel corneal stromal lens extraction forceps as described in claim 1, wherein: the second round pipe (4) is arc-shaped, and the second round pipe (4) is upwards convex.

5. The novel corneal stromal lens extraction forceps as described in claim 1, wherein: the clamping mechanism comprises two second fixed blocks (14), the two second fixed blocks (14) are respectively and fixedly connected with the inner walls of the top and the bottom of the second circular tube (4), the front end face of each second fixed block (14) is movably connected with a rotating block (15), one side, far away from the first circular tube (3), of each rotating block (15) is fixedly connected with a clamping plate (16), a second spring (17) is fixedly connected between the two clamping plates (16), one side, far away from the clamping plate (16), of each rotating block (15) is provided with a movable block (18), the front end face of each movable block (18) is movably connected with two second connecting blocks (19) through a rotating shaft, the other sides of the two second connecting blocks (19) are respectively and movably connected with the front end faces of the two rotating blocks (15) through rotating shafts, and one side, far away from the rotating block (15), of each movable block (18) is provided with an iron wire (20), the opposite side of iron wire (20) passes second pipe (4), first pipe (3) and sleeve (2) to fixed connection is in the one end of threaded rod (12).

6. The novel corneal stromal lens extraction forceps as described in claim 1, wherein: an observation port (21) is formed in the front end face of the handle (1), the observation port (21) is located on one side of the movable block (6), and a transparent glass block is mounted on the inner wall of the observation port (21).

7. The novel corneal stromal lens extraction forceps as described in claim 1, wherein: the movable opening (8) is rectangular, and the height of the limiting block (7) is equal to that of the movable opening (8).