CN109330768B

CN109330768B - Front capsule incision guiding device for cataract surgery

Info

Publication number: CN109330768B
Application number: CN201811349405.0A
Authority: CN
Inventors: 张海涛; 林立勋; 董丽娟
Original assignee: Individual
Current assignee: Li Na
Priority date: 2018-11-12
Filing date: 2018-11-12
Publication date: 2021-09-14
Anticipated expiration: 2038-11-12
Also published as: CN109330768A; CN113101046B; CN113101046A

Abstract

The invention relates to the technical field of medical instruments, in particular to a anterior capsulotomy guide device for cataract surgery, which comprises a circular ring, wherein the 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 center 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 center of the top end of the circular ring, one end of an elastic strip is inserted into 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 surface of the groove, the top end of the elastic strip is welded with an outer cylinder of a bearing, and the inner cylinder of the bearing is in interference fit with a screw rod capable of rotating around the axis of the elastic strip, the anterior capsule can be accurately and perfectly incised.

Description

Front capsule incision guiding device for cataract surgery

Technical Field

The invention relates to the technical field of medical instruments, in particular to a front capsule incision guiding device for cataract surgery.

Background

Cataract surgery is an ophthalmic surgery, which aims to remove a clouded lens and to insert a transparent intraocular lens instead of a natural lens, the natural lens has a capsular bag, i.e., a lens capsule, and is divided into intracapsular extraction and extracapsular extraction according to the relationship between the lens core and the capsular bag at the time of surgical extraction, and after the clouded lens is extracted, an intraocular lens is often inserted, and the position of the intraocular lens can be placed in the anterior chamber or the posterior chamber, and in the posterior chamber, the intraocular lens can be placed in the capsular bag or the extracapsular so as to restore vision and restore the anatomical relationship in the eye, prevent the anterior vitreous humor from being removed, and if the anterior vitreous humor is removed from the vitreous cavity and the anterior chamber is adhered to the cornea or iris tissues, the anterior vitreous humor may be pulled.

An experienced doctor may incise the anterior capsule based on the size of the patient's cornea and the size of the dilated pupil, but the size of the patient's cornea is different from each other, and the size of the dilated pupil is also different from each other, resulting in different final sizes, and the shape of the incised anterior capsule is completely dependent on the doctor's experience and technique, so that it is very difficult to incise the anterior capsule in a perfectly circular shape, and when the incised anterior capsule is not perfectly sized and shaped, an additional operation is performed to adjust the size of the lens capsule after the intraocular lens is implanted, which wastes time and manpower.

Disclosure of Invention

The present invention is directed to solving the above-mentioned problems of the prior art by providing a anterior capsulotomy guide device for cataract surgery.

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

designs a front capsule incision guiding device for cataract surgery, which comprises a circular ring, wherein the 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 center of the top end of the inner cavity of the circular ring, the inner cavity of the supporting seat is hollow, through holes are formed in two sides of the inner cavity, a hollow column is welded in the center of the top end of the circular ring, one end of an elastic strip is inserted in each of 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 surface of the groove, the top end of the elastic strip is welded with an outer cylinder of the bearing, and the inner cylinder of the bearing is in interference fit with a screw rod which can rotate around the axis of the bearing, a hollow column extends out of the top end of the screw rod, a disc is welded on the top end of the screw rod, the screw rod and the screw thread phase-match of hollow post inner wall, the lantern ring has been cup jointed to screw thread department on the outer wall of hollow post, the welding has the handle on the outer wall of lantern ring.

Preferably, the front side of hollow post has been pegged graft and has been had injection part, injection part includes empty section of thick bamboo, the inner chamber central point of empty section of thick bamboo puts the joint and has had the baffle, the baffle separates into two parts with empty section of thick bamboo, the piston has all been pegged graft to the inner chamber left and right sides of empty section of thick bamboo, the top joint of piston has the push rod, the bottom joint of empty section of thick bamboo has the concave pipe, the equal spiro union in the left and right sides of concave pipe has the valve, the bottom welding of concave 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 support seat.

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

The anterior capsulotomy guide device for cataract surgery provided by the invention has the beneficial effects that: the invention can drive the screw rod to rotate by rotating the disc clockwise, can drive the inner cylinder of the bearing to rotate in the outer cylinder, and the screw rod is matched with the thread of the inner wall of the hollow column, so that the screw rod moves downwards 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, and medical staff can adjust the size of the groove according to the size of the cornea of a patient and the size of an expanded pupil, and can accurately and perfectly incise the anterior capsule.

Drawings

FIG. 1 is a schematic structural view 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 part structure of the present invention.

In the figure: 1. the device comprises a circular ring, 2, an injection part, 201, an empty 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, 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 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.

Referring to fig. 1-3, a anterior capsulotomy guide device for cataract surgery 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 support seat 10 is clamped at the center of the top end of the inner cavity of the ring 1, the surfaces of the left side and the right side of the support seat 10 are both arc-shaped, the inner cavity of the support seat 10 is hollow, through holes are formed in the two sides of the inner cavity of the support seat 10, a hollow column 7 is welded at the center 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 elastic strip 9 is made of metal rubber, 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, the elastic strip 9 moves along the inner walls of the support seat 10 and the ring 1 and moves out of the ring 1 into the groove 8, and the length of the elastic strip 9 moved out of the ring 1 from the ring 1 can be adjusted according to the size of a patient's cornea and the size of an expanded pupil, so as to adjust the size of the groove 8 The utility model discloses a handle 3 is conveniently held to the position on hollow post 7 through rotating lantern ring 4, the side of elasticity strip 9 and supporting seat 10 contacts, the top welding of elasticity strip 9 has the urceolus of bearing 11, and bearing 11's inner tube interference fit has can be around self axis pivoted screw rod 5, hollow post 7 and at this top welding disc 6 are extended to the top of screw rod 5, screw rod 5 and the screw thread phase-match of hollow post 7 inner wall, because screw rod 5 and the inner wall screw thread phase-match of hollow post 7, clockwise or anticlockwise rotation screw rod 5 can make screw rod 5 move down or rebound, screw thread department has cup jointed lantern ring 4 on the outer wall of hollow post 7, can adjust its position on hollow post 7 through rotating lantern ring 4, the welding has handle 3 on the outer wall of lantern ring 4.

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 plate 202 is clamped in the center of the inner cavity of the hollow cylinder 201, the partition plate 202 divides the hollow cylinder 201 into two parts, pistons 206 are inserted in the left side and the right side of the inner cavity of the hollow cylinder 201, a push rod 207 is clamped at the top end of the piston 206, a concave pipe 205 is clamped at the bottom end of the hollow cylinder 201, valves 203 are screwed on the left side and the right side of the concave pipe 205, a stud 204 is welded at the bottom end of the concave pipe 205, the stud 204 sequentially extends into the inner cavities of the hollow column 7 and the support seat 10, as the liquid medicine is required to clean eyes or disinfect and relieve pain during operation, the hollow cylinder 201 is divided into two parts by the partition plate 202, so that the inner cavity of the hollow cylinder 201 can store two liquid medicines, and the left or right valve 203 can be opened by selecting proper liquid medicine according to actual conditions during operation, the push rod 207 is pushed to drive the piston 206 to press the liquid medicine to flow out from the concave pipe 205, and the liquid medicine enters the inner cavity of the supporting seat 10 through the stud 204 and flows into the inner cavity of the ring 1 from the through holes on the two sides, so that the liquid medicine is contacted with eyes, and the medical staff can use the liquid medicine conveniently during the operation.

The working principle is as follows: the ring 1 is fixed at the corneal incision by an operator, the groove 8 is aligned to the position of a anterior capsule to be cut, one hand holds the handle 3, the other hand rotates the disc 6 clockwise to drive the screw rod 5 to rotate to drive the inner cylinder of the bearing 11 to rotate in the outer cylinder, because the screw rod 5 is matched with the thread of the inner wall of the hollow column 7, the screw rod 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 inner wall of the support seat 10 and the ring 1 and moves out of the ring 1 to enter the groove 8, the length of the elastic strip 9 moving out of the ring 1 can be adjusted according to the size of the cornea of a patient and the size of an expanded pupil, so that the size of the groove 8 is adjusted, the anterior capsule can be cut accurately, and the effect of a cataract surgery can be maximized.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims

1. A front capsulotomy guide device for cataract surgery is characterized in that: the novel bearing comprises a circular ring (1), wherein the inner cavity of the circular ring (1) is hollow, a groove (8) is reserved in the surface of the circular ring (1), a supporting seat (10) is clamped at the center of the top end of the inner cavity of the circular ring (1), the inner cavity of the supporting seat (10) is hollow, through holes are formed in two sides of the inner cavity of the supporting seat, a hollow column (7) is welded at the center of the top end of the circular 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 circular ring (1) and is flush with the end face of the groove (8), an outer barrel 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 is arranged in an interference fit mode on the inner barrel of the bearing (11), and a disc (6) is welded at the top end of the hollow column (7) and extends out of the screw rod (5), screw rod (5) and the screw thread phase-match of hollow post (7) inner wall, the lantern ring (4) has been cup jointed to screw thread department on the outer wall of hollow post (7), the welding has handle (3) on the outer wall of lantern ring (4).

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

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