Intraocular lens loop fixing forceps

Abstract

The utility model provides a pair of intraocular lens loop fixing forceps, which comprises two oppositely arranged forceps handles, the first ends of the two forceps handles are fixedly connected, the second ends of the forceps handles are oppositely opened at an interval, the second ends of the forceps handles are fixedly connected with forceps rods, the forceps rods and the forceps handles form an included angle, and the tail ends of the two forceps rods are respectively and fixedly provided with a forceps clip. At least two tweezers teeth are fixed to the opposite faces of the two tweezers clamps, the tweezers teeth on the two tweezers clamps are oppositely arranged, opposite receding through grooves are formed in the two tweezers clamps, and the tweezers handles can enable the tweezers teeth on the two tweezers clamps to be close to each other and clamp each other under the action of external force. At least two forceps teeth are fixed on the forceps clips of each person, at least two clamping points are provided when the forceps are used, clamping is stable, slipping is not prone to occurring, one person can operate the forceps in an operation, operation is simple and reliable, assistance of another person is not needed, the avoiding through grooves are formed in the forceps clips, suture lines can penetrate through the forceps clips conveniently, and the forceps are convenient to use. The loops of the intraocular lens can be conveniently fixed on the eyeball wall through sutures during an operation.

Description

Technical Field

[0001] The utility model relates to an ophthalmic surgical instrument, in particular to an artificial lens loop fixing forceps. Background Art

[0002] Cataract is a common blinding eye disease. There is a tissue in the human eye called the lens, which is normally transparent. Light passes through it and some refractive media to reach the retina, so that objects outside can be seen clearly. Once the lens becomes cloudy for some reason, it will affect the retinal imaging and make it difficult for people to see clearly. In other words, cataracts are caused by lens opacity that leads to decreased vision.

[0003] The current effective treatment for cataracts is to surgically remove the cloudy natural lens and then implant an artificial lens to allow light to re-enter the eye and restore clear vision.

[0004] An intraocular lens is composed of an optic and a haptic. The main function of the optic (the central circular part) is refraction, and the main function of the haptic is support. Depending on whether the optic and the haptic of the intraocular lens are integrated, it can be divided into a one-piece (also called one-piece, integrated) and a three-piece intraocular lens. A one-piece intraocular lens is a more common type on the market. Its optic and haptic are made of the same material, and the connection between the optic and the haptic is continuous without joints. The optic and haptic of a three-piece intraocular lens are made of different materials. Commonly used materials for the haptic are PMMA, polyimide, and polyvinylidene fluoride (PVDF). The connection between the haptic and the optic is achieved by inserting the haptic into the optic.

[0005] According to the number of intraocular lens support loops, intraocular lenses can be divided into double-loop, three-loop, and four-loop intraocular lenses; according to the shape of the loops, they can be further divided into "C"-shaped loops, "L"-shaped loops, flat loops, and ring loops. The loop type and loop length of the intraocular lens are related to the centration and stability of the intraocular lens after implantation. Intraocular lenses made of hydrophilic materials mostly use flat loops and ring loops, while intraocular lenses made of hydrophobic materials mostly use "C"-shaped loops, "L"-shaped loops, or modified loops.

[0006] During cataract surgery, when installing an artificial lens in an implanter, or when aphakia requires a special procedure to fix the artificial lens, it is necessary to grab the artificial lens loop. Tweezers are an important tool used in this step, and are used for clamping, centering, and suture fixation of the artificial lens. However, existing tweezers such as A Figure 1 One end of the tweezers is clamped by two tweezers claws a, but the two tweezers claws a have only one clamping point. When clamping the loop of the artificial lens and the suture, it is unstable and easy to slip. It is not easy for one person to operate, and an assistant is required to assist with another tweezers. Moreover, when the tweezers are clamped, there is no gap in the middle or the gap is small, which is not convenient for the passage of the suture. Utility Model Content

[0007] The utility model provides artificial lens loop fixing forceps, which solve the problems that the forceps used in the existing cataract surgery are unstable, easy to slip and inconvenient to thread.

[0008] The technical solution of the utility model is achieved in this way:

[0009] The intraocular lens loop fixing forceps include two forceps handles arranged opposite to each other, the first ends of the two forceps handles are fixedly connected, the second ends of the forceps handles are relatively spaced apart, the second ends of the forceps handles are fixedly connected with forceps rods, the forceps rods and the forceps handles form an angle, the ends of the two forceps rods are fixed with forceps clamps, at least two forceps teeth are fixed on the opposite surfaces of the two forceps clamps, the forceps teeth on the two forceps clamps are arranged opposite to each other, and the two forceps clamps are provided with relative avoidance grooves, and the forceps handles can make the forceps teeth on the two forceps clamps close to each other under the action of external force.

[0010] Furthermore, the tweezer teeth on the same tweezer clamp are arranged at intervals.

[0011] Furthermore, the forceps teeth are rectangular teeth or conical teeth.

[0012] Furthermore, the clamping surface of the tweezers teeth is a flat surface or a non-slip surface.

[0013] Furthermore, the forceps are U-shaped clamps.

[0014] Furthermore, at least one limiting column is fixed on a surface of one of the tweezers handles opposite to the other tweezers handle.

[0015] Furthermore, a plurality of weight-reducing through holes are provided on the two tweezers handles.

[0016] Furthermore, anti-slip patterns are arranged on the surfaces of the two tweezers handles that are away from each other.

[0017] Furthermore, the cross section of the tweezers handle is rectangular, and the cross section of the tweezers rod is rectangular or circular.

[0018] Furthermore, the included angle between the tweezers rod and the tweezers handle is 100-170 degrees.

[0019] The beneficial effects of the utility model are as follows: each tweezer of the utility model is fixed with at least two tweezer teeth, and has at least two clamping points when in use. The clamping is stable and not easy to slip. One person can operate it during surgery. The operation is simple and reliable, and no assistance of another person is required. In addition, an avoidance groove is provided on the tweezer to facilitate the passage of sutures, so that the loop of the artificial lens can be fixed to the wall of the eyeball by sutures during surgery. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 It is a structural schematic diagram of existing tweezers;

[0022] Figure 2 It is a schematic diagram of the structure of the utility model;

[0023] Figure 3 for Figure 2 A partial enlarged view of the portion shown in B;

[0024] Figure 4 Schematic diagram of the structure of tapered forceps teeth.

[0025] Reference numerals in the figure: 1-tweezer handle, 11-first end, 12-second end, 13-limiting column, 14-weight-reducing through hole, 2-tweezer rod, 3-tweezer clamp, 31-avoidance through slot, 4-tweezer teeth, 41-clamping surface. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] Reference Figure 2-4 The intraocular lens loop fixing forceps include two forceps handles 1 arranged opposite to each other, the first ends 11 of the two forceps handles 1 are fixedly connected, the second ends 12 of the forceps handles 1 are relatively spaced apart, a forceps rod 2 is fixedly connected to the second end 12 of the forceps handles 1, the forceps rod 2 forms an angle with the forceps handles 1, forceps clamps 3 are fixed at the ends of the two forceps rods 2, at least two forceps teeth 4 are fixed on the opposite surfaces of the two forceps clamps 3, the forceps teeth 4 on the two forceps clamps 3 are arranged opposite to each other, and the two forceps clamps 3 are provided with relative avoidance grooves 31, and the forceps handles 1 can make the forceps teeth 4 on the two forceps clamps 3 close to each other under the action of external force.

[0028] As a further preferred solution, the tweezers teeth 4 on the same tweezers clamp 3 are arranged at intervals.

[0029] As a further preferred solution, the forceps teeth 4 are rectangular teeth or conical teeth.

[0030] As a further preferred solution, the clamping surface 41 of the tweezers teeth 4 is a flat surface or a non-slip surface.

[0031] As a further preferred solution, the forceps 3 are U-shaped clamps.

[0032] As a further preferred solution, at least one limiting column 13 is fixed on the surface of one of the forceps handles 1 opposite to the other forceps handle 1 .

[0033] As a further preferred solution, a plurality of weight-reducing through holes 14 are provided on the two forceps handles 1 .

[0034] As a further preferred solution, anti-slip grooves (not shown) are arranged on the surfaces of the two tweezers handles 1 that are away from each other.

[0035] As a further preferred solution, the cross section of the tweezers handle 1 is rectangular, and the cross section of the tweezers rod 2 is rectangular or circular.

[0036] As a further preferred solution, the angle between the tweezers rod 2 and the tweezers handle 1 is 100-170 degrees.

[0037] Each tweezers clamp 3 of the utility model is fixed with at least two tweezer teeth 4, and has at least two clamping points when in use, so the clamping is stable and not easy to slip. During surgery, one person can operate it, and the operation is simple and reliable, and no assistance of another person is required. In addition, an avoidance groove 31 is provided on the tweezers clamp 3 to facilitate the passage of sutures, so that the loop of the artificial lens is fixed to the wall of the eyeball by sutures during surgery.

[0038] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. Artificial lens loop fixing forceps, Features: The utility model comprises two tweezer handles which are arranged opposite to each other, wherein the first ends of the two tweezer handles are fixedly connected, the second ends of the tweezer handles are relatively spaced apart, the second ends of the tweezer handles are fixedly connected with tweezer rods, the tweezer rods and the tweezer handles form an angle, tweezer clamps are fixed at the ends of the two tweezer rods, at least two tweezer teeth are fixed on the opposite surfaces of the two tweezer clamps, the tweezer teeth on the two tweezer clamps are arranged opposite to each other, and the two tweezer clamps are provided with relative avoidance grooves, and the tweezer handles can make the tweezer teeth on the two tweezer clamps close to each other for clamping under the action of external force.

2. The intraocular lens haptic fixing forceps according to claim 1, Features: The tweezers teeth on the same tweezers clamp are arranged at intervals.

3. The intraocular lens haptic fixing forceps according to claim 1, Features: The tweezer teeth are rectangular teeth or conical teeth.

4. The intraocular lens haptic fixing forceps according to claim 1, Features: The clamping surface of the tweezer teeth is a flat surface or a non-slip surface.

5. The intraocular lens haptic fixing forceps according to claim 1, Features: The tweezers are U-shaped clamps.

6. The intraocular lens haptic fixing forceps according to claim 1, Features: At least one limiting column is fixed on a surface of one of the tweezers handles opposite to the other tweezers handle.

7. The intraocular lens haptic fixing forceps according to claim 1, Features: A plurality of weight-reducing through holes are provided on the two tweezer handles.

8. The intraocular lens haptic fixing forceps according to claim 1, Features: Anti-slip patterns are arranged on the surfaces of the two tweezers handles which are away from each other.

9. The intraocular lens haptic fixing forceps according to claim 1, Features: The cross section of the tweezers handle is rectangular, and the cross section of the tweezers rod is rectangular or circular.

10. The intraocular lens haptic fixing forceps according to claim 1, Features: The included angle between the tweezers rod and the tweezers handle is 100-170 degrees.

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