CN113101046B

CN113101046B - Anterior capsulotomy guiding device for cataract surgery

Info

Publication number: CN113101046B
Application number: CN202110430823.8A
Authority: CN
Inventors: 张海涛; 林立勋; 董丽娟
Original assignee: Changchun Aier Eye Hospital Co Ltd
Current assignee: Changchun Aier Eye Hospital Co Ltd
Priority date: 2018-11-12
Filing date: 2018-11-12
Publication date: 2023-06-23
Anticipated expiration: 2038-11-12
Also published as: CN109330768B; CN113101046A; CN109330768A

Abstract

The invention relates to the technical field of medical instruments, in particular to an anterior capsulotomy guiding device for cataract surgery, which comprises a circular ring, wherein an inner cavity of the circular ring is hollow, a groove is reserved on the surface of the circular ring, a supporting seat is clamped at the central position of the top end of the inner cavity of the circular ring, the inner cavity of the supporting seat is hollow, a hollow column is welded at the central position of the top end of the circular ring, one end of an elastic strip is inserted at the left side and the right side of the inner cavity of the hollow column, the other end of the elastic strip extends into the inner cavity of the circular ring and is flush with the end face of the groove, an outer cylinder of a bearing is welded at the top end of the elastic strip, a screw rod capable of rotating around the axis of the bearing is in interference fit with the inner cylinder of the bearing, the elastic strip moves out of the circular ring into the groove along the inner wall of the circular ring, medical staff can adjust the size of the groove according to the cornea size of a patient and the size of an expanded pupil, and the anterior capsulotomy can be accurately and perfectly cut.

Description

Anterior capsulotomy guiding device for cataract surgery

Technical Field

The invention relates to the technical field of medical appliances, in particular to an anterior capsulotomy guiding device for cataract surgery.

Background

Cataract surgery is an ophthalmic surgery, and aims to remove a turbid lens and to insert a transparent intraocular lens to replace the natural lens, wherein the natural lens has a capsular bag, namely a lens capsule, and is divided into intracapsular extraction and extracapsular extraction according to the relation of a lens nucleus to the capsular bag during the surgical extraction, after the turbid lens is extracted, an intraocular lens is often inserted, the intraocular lens can be placed in an anterior chamber or a posterior chamber, the intraocular lens can be placed in the capsule or outside the capsule in the posterior chamber, besides vision can be recovered, the anatomical relation in the eye can be recovered, and the extraction of a front vitreous body can be prevented, and if the front vitreous body is extracted from a vitreous cavity to be adhered with a cornea or iris tissue, traction can be caused on the retina.

The experienced doctor can cut the anterior capsule according to the size of the cornea of the patient and the size of the dilated pupil as a reference, but the cornea of the patient is different from each other and the size of the dilated pupil is also inconsistent, thus resulting in the difference of the final size from each other, and the shape of the cut anterior capsule is completely dependent on the experience and technique of the doctor, so that it is difficult to cut the anterior capsule in a perfect circular shape, and when the size and shape of the cut anterior capsule are not perfect, additional operations are performed for adjusting the size of the lens capsule after the intraocular lens is implanted, which are wasteful of time and labor.

Disclosure of Invention

The invention aims to provide an anterior capsulotomy guiding device for cataract surgery, which solves the problems in the prior art.

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

the utility model provides a front bag opens guiding device for cataract surgery, includes the ring, and the inner chamber of ring is hollow, the surface of ring is reserved flutedly, the inner chamber top central point of ring puts the joint and has the supporting seat, the inner chamber of supporting seat is hollow and has seted up the through-hole in both sides, the top central point of ring puts the welding has hollow post, the one end of elastic strip has all been pegged graft to the inner chamber left and right sides of hollow post, and the other end of elastic strip extends into the inner chamber of ring and with the terminal surface parallel and level of recess, the urceolus of bearing has been welded on the top of elastic strip, and the inner tube interference fit of bearing has the screw rod that can wind self axis pivoted, hollow post is extended on the top of screw rod and is welded the disc at this top, screw rod and the screw thread phase-match of hollow post inner wall, the outer wall upper thread department of hollow post cup joints the lantern ring, the welding has the handle on the outer wall of lantern ring.

Preferably, the front side of hollow post is pegged graft and is had injection part, injection part includes an empty section of thick bamboo, the inner chamber central point of an empty section of thick bamboo puts the joint and has the baffle, the baffle separates an empty section of thick bamboo into two parts, the inner chamber left and right sides of an empty section of thick bamboo has all been pegged graft the piston, the top joint of piston has the push rod, the bottom joint of an empty section of thick bamboo has the spill pipe, the equal spiro union in left and right sides of spill pipe has the valve, the bottom welding of spill pipe has the double-screw bolt, and the double-screw bolt extends into the inner chamber of hollow post and supporting seat in proper order.

Preferably, the elastic strip is in contact with the side surface of the supporting seat.

Preferably, the left and right side surfaces of the supporting seat are arc-shaped.

The invention provides a front capsulotomy guiding device for cataract surgery, which has the beneficial effects that: according to the invention, the disc can be rotated clockwise to drive the screw rod to rotate so as to drive the inner cylinder of the bearing to rotate in the outer cylinder, and as the screw rod is matched with the threads on the inner wall of the hollow column, the screw rod is driven to move downwards so as to drive the outer cylinder of the bearing to push the elastic strip to move downwards, the elastic strip moves out of the circular ring along the inner wall of the circular ring and enters the groove, medical staff can adjust the size of the groove according to the cornea size of a patient and the size of the expanded pupil, and the anterior capsule can be accurately and perfectly cut.

Drawings

FIG. 1 is a schematic diagram of the structure of the present invention;

FIG. 2 is a schematic cross-sectional view of the present invention;

FIG. 3 is a schematic view of the injection component structure of the present invention.

In the figure: 1. the injection device comprises a circular ring, 2, an injection part, 201, a hollow cylinder, 202, a partition plate, 203, a valve, 204, a stud, 205, a concave pipe, 206, a piston, 207, a push rod, 3, a handle, 4, a lantern ring, 5, a screw rod, 6, a disc, 7, a hollow column, 8, a groove, 9, an elastic strip, 10, a supporting seat, 11 and a bearing.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.

Referring to fig. 1-3, a leading device is cut with preceding bag to cataract operation, including ring 1, and the inner chamber of ring 1 is hollow, recess 8 is reserved on ring 1's surface, ring 1's inner chamber top central point puts the joint and has supporting seat 10, supporting seat 10's left and right sides surface all is the arc, supporting seat 10's inner chamber is hollow and has seted up the through-hole in both sides, ring 1's top central point puts the welding and has hollow post 7, hollow post 7's inner chamber left and right sides all pegging graft has the one end of elastic strip 9, and elastic strip 9's material is metal rubber, and elastic strip 9's the other end extend into ring 1's inner chamber and with recess 8 terminal surface parallel and level, elastic strip 9 moves along supporting seat 10 and ring 1's inner wall to move out ring 1 and get into recess 8 in, thereby can be according to patient's cornea size, and the size adjustment elastic strip 9 moves out from ring 1 the length adjusting groove 8's size, inner tube 9 and supporting seat 10's top contact with the side of supporting seat 7, hollow post 11, the hollow post 5 can be had the hollow post 5, the outer wall 5 is equipped with the hollow post 5 of the outer wall 5 and the hollow post 5 of the top end 5, the hollow post 5 is equipped with the outer wall 5 or the hollow post 5 of the top 5, the hollow post 5 is equipped with the screw thread 5 is equipped with on the outer wall 5, the outer wall 5 of the hollow post 5 or the screw rod is equipped with the round 5, and the hollow post 5 is equipped with the screw thread 5, and the top end 5 is convenient for the rotation.

The injection component 2 is inserted in the front side of the hollow column 7, the injection component 2 comprises a hollow cylinder 201, a partition board 202 is clamped in the center of the inner cavity of the hollow cylinder 201, the hollow cylinder 201 is divided into two parts by the partition board 202, pistons 206 are inserted in the left side and the right side of the inner cavity of the hollow cylinder 201, push rods 207 are clamped in the top ends of the pistons 206, concave pipes 205 are clamped in the bottom ends of the hollow cylinder 201, valves 203 are screwed in the left side and the right side of the concave pipes 205, studs 204 are welded in the bottom ends of the concave pipes 205, and the studs 204 sequentially extend into the inner cavities of the hollow column 7 and the supporting seat 10.

Working principle: the doctor firstly fixes the circular ring 1 on the cornea incision to enable the groove 8 to be aligned with the position of the anterior capsule to be cut, the disc 6 can be rotated clockwise by holding the handle 3 by one hand, the screw 5 can be driven to rotate so as to drive the inner cylinder of the bearing 11 to rotate in the outer cylinder, the screw 5 is matched with the inner wall threads of the hollow column 7, the screw 5 moves downwards to drive the outer cylinder of the bearing 11 to push the elastic strip 9 to move downwards, the elastic strip 9 moves along the supporting seat 10 and the inner wall of the circular ring 1 and moves out of the circular ring 1 into the groove 8, the length of the elastic strip 9 moved out of the circular ring 1 can be adjusted according to the cornea size of a patient and the size of the expanded pupil, the size of the groove 8 can be accurately cut, and the cataract surgery effect can be maximized.

The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.

Claims

1. An anterior capsulotomy guiding device for cataract surgery, characterized in that: the novel ring comprises a ring (1), wherein the inner cavity of the ring (1) is hollow, a groove (8) is reserved on the surface of the ring (1), a supporting seat (10) is clamped at the central position of the top end of the inner cavity of the ring (1), through holes are formed in the inner cavity of the supporting seat (10) in a hollow mode and are formed in two sides of the supporting seat, a hollow column (7) is welded at the central position of the top end of the ring (1), one end of an elastic strip (9) is inserted into the left side and the right side of the inner cavity of the hollow column (7), the other end of the elastic strip (9) extends into the inner cavity of the ring (1) and is flush with the end face of the groove (8), an outer cylinder of a bearing (11) is welded at the top end of the elastic strip (9), a screw rod (5) capable of rotating around the axis of the bearing (11) is in interference fit, the top end of the screw rod (5) extends out of the hollow column (7) and is welded with a disc (6) at the top end, threads of the inner wall of the hollow column (7) are matched, one end of the outer wall of the hollow column (7) is sleeved with threads of a sleeve ring (4), and the outer wall (4) is welded with a handle (3).

Injection part (2) have been pegged graft to the front side of hollow cylinder (7), injection part (2) are including hollow section of thick bamboo (201), the inner chamber central point of hollow section of thick bamboo (201) puts joint has baffle (202), baffle (202) separate hollow section of thick bamboo (201) into two parts, piston (206) have all been pegged graft to the inner chamber left and right sides of hollow section of thick bamboo (201), the top joint of piston (206) has push rod (207), the bottom joint of hollow section of thick bamboo (201) has concave tube (205), the equal spiro union in left and right sides of concave tube (205) has valve (203), the bottom welding of concave tube (205) has double-screw bolt (204), and double-screw bolt (204) extend into the inner chamber of hollow cylinder (7) and supporting seat (10) in proper order.

2. An anterior capsulotomy guide device for cataract surgery as in claim 1, wherein: the elastic strip (9) is contacted with the side surface of the supporting seat (10).

3. An anterior capsulotomy guide device for cataract surgery as in claim 1, wherein: the surfaces of the left side and the right side of the supporting seat (10) are arc-shaped.