Capsulorhexis forceps with adjustable angle

Abstract

The utility model discloses capsulorhexis forceps with an adjustable angle. The capsulorhexis forceps comprise a forceps handle, the pair of tweezers arms and the tweezers handle are integrally formed; the clamping arms are connected with the two tweezers arms respectively, and tweezers claws are arranged at the tail ends of the clamping arms; the two rotary adjusting pieces are arranged at the joints of the two clamping arms and the forceps arms respectively, and the rear ends of the clamping arms are connected with the front ends of the forceps arms in an up-down rotary adjusting mode through the rotary adjusting pieces. Before a doctor carries out a capsulorhexis process of a cataract surgery, the relative angle between the clamping arms and the forceps arms is adjusted according to eye features such as the depth of eye sockets and the width of palpebral fissures of a patient, and the included angle between the clamping arms and the forceps arms can be increased or decreased, so that the doctor can conveniently place the capsulorhexis forceps into an anterior chamber and conveniently carry out the operation of capsulorhexis of an anterior capsular membrane, the surgical risk is reduced, and the operation efficiency is improved. Operation risks are reduced, operation safety is improved, and the success rate of the operation is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of ophthalmic surgical instruments, in particular to an anterior capsule tearing forceps for lens used in cataract ophthalmic surgery. Background Art

[0002] In ophthalmic cataract surgery, a continuous circular capsulorhexis with a diameter of 5.5 to 6 mm is very important for the successful operation of cataract surgery and the long-term stability of artificial lenses. Experienced surgeons can control the size of the capsulorhexis based on their experience, mainly relying on the accumulation of surgical experience, but it is still difficult to control, and it is even more difficult for junior surgeons to control.

[0003] Capsulotomy forceps are an existing ophthalmic surgical instrument. The reference authorization publication number is CN204562555U, a Chinese patent application date of April 20, 2015, and the patent name is "Capsulotomy and Capsulotomy Kit for Cataract Surgery", which includes capsulotomy forceps.

[0004] However, in micro-incision cataract surgery, if ordinary capsulorhexis forceps are used, the diameter of the capsulorhexis opening is easily too large or too small, and the surgical risk is uncontrollable. At the same time, some cataract patients have eye structural features such as high brow arches and deep eye sockets, which makes the handle of ordinary lens capsulorhexis forceps often blocked by the upper orbital rim. During surgery, it is often impossible to smoothly enter the anterior chamber or successfully complete the capsulorhexis operation, resulting in uncontrollable surgical risks and a reduced success rate of the operation. Utility Model Content

[0005] The utility model aims to provide a capsulorhexis forceps with adjustable angle, which can adjust the angle during surgery to adapt to patients with different eye socket depths, thereby improving surgery efficiency and reducing surgery risks.

[0006] The purpose of the utility model is achieved as follows: a capsulorhexis forceps with adjustable angle, comprising:

[0007] Tweezers handle;

[0008] A pair of forceps arms integrally formed with the forceps handle;

[0009] A pair of clamp arms connected to the two tweezer arms respectively, with tweezer claws provided at the ends of the clamp arms;

[0010] A pair of rotating adjustment pieces are respectively arranged at the connection between the two clamp arms and the tweezer arms. The rear end of the clamp arm can be connected to the front end of the tweezer arm in an up-and-down rotationally adjustable manner through the rotating adjustment piece.

[0011] The beneficial effects of the utility model are:

[0012] By adopting the scheme of the utility model, before performing the capsulotomy process during cataract surgery, the doctor first adjusts the relative angle between the clamp arm and the forceps arm according to the patient's eye characteristics such as the orbital depth and the width of the palpebral fissure, and can increase or decrease the angle between the clamp arm and the forceps arm, thereby making it convenient for the doctor to place the capsulotomy forceps into the anterior chamber and perform the anterior capsule capsulotomy, thereby reducing surgical risks, reducing surgical risks, improving surgical safety, and increasing the success rate of the surgery. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the first embodiment of the utility model.

[0014] Figure 2 yes Figure 1 Top view of the .

[0015] Figure 3 It is a schematic diagram of a second embodiment of the present utility model.

[0016] Figure 4 It is a schematic diagram of a third embodiment of the present utility model.

[0017] Figure 5 yes Figure 3 Enlarged view of part A in .

[0018] Figure 6 It is a structural detail diagram of the rotary adjustment member in the second embodiment.

[0019] Figure 7 Schematic diagram of the position of the screw groove in the second embodiment.

[0020] Figure 8 yes Figure 4 Enlarged view of part B in .

[0021] Fig. 9 It is a schematic diagram of a fourth embodiment of the present utility model. DETAILED DESCRIPTION

[0022] The following will be combined with the attached embodiment of the utility model Figure 1-9 , 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 them. 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.

[0023] like Figure 1 , 2 As shown, a capsulorhexis forceps with adjustable angle is proposed, which mainly includes:

[0024] Tweezers handle 5;

[0025] a pair of forceps arms 4 integrally formed with the forceps handle 5;

[0026] A pair of clamp arms 2 connected to two tweezer arms 4 respectively, and tweezer claws 1 are provided at the ends of the clamp arms 2;

[0027] A pair of rotating adjustment members 3 are respectively arranged at the connection between the two clamp arms 2 and the tweezer arms 4. The rear end of the clamp arm 2 can be connected to the front end of the tweezer arm 4 by rotating up and down through the rotating adjustment members 3, that is, the relative angle between the clamp arm 2 and the tweezer arm 4 can be flexibly adjusted.

[0028] Before performing the capsulotomy during cataract surgery, the doctor first adjusts the relative angle between the clamp arm 2 and the forceps arm 4 according to the patient's eye characteristics such as the depth of the orbit and the width of the palpebral fissure. The angle between the clamp arm 2 and the forceps arm 4 can be increased or decreased, thereby making it easier for the doctor to place the capsulotomy forceps into the anterior chamber and perform the anterior capsule capsulotomy.

[0029] The above-mentioned arrangement of the components is taken as the first embodiment.

[0030] The above-mentioned rotation adjustment member 3 can have various structural forms, such as a bolt shaft, a rivet, etc., but this patent takes into account the operability of the rotation adjustment and proposes the following solution.

[0031] like Figure 3 , 5 , 6, and 7, a second embodiment is proposed, wherein the above-mentioned rotating adjustment member 3 comprises:

[0032] A nut sleeve 3c, one end of which is fixed with a limit plate 3d abutting against the inner side of the clamp arm 2, the nut sleeve 3c is a round sleeve structure, the inner hole of which is a threaded hole, and the nut sleeve 3c is rotatably connected to the mounting through holes of the clamp arm 2 and the tweezer arm 4;

[0033] The rubber sleeve 3e is a circular gasket, and the nut sleeve 3c rotatably penetrates the inner hole of the rubber sleeve 3e. The rubber sleeve 3e is located between the clamp arm 2 and the tweezer arm 4 and is close to the clamp arm 2 and the tweezer arm 4;

[0034] The screw 3a is inserted into the inner hole of the nut sleeve 3c from the outside of the tweezers arm 4, and the screw head of the screw 3a is pressed against the outside of the tweezers arm 4.

[0035] In the second embodiment, the screw head of the screw 3a is provided with a strip-shaped screw groove 31 (such as Figure 7 As shown in the figure, during the process of adjusting the clamp arm 2, a small screwdriver is used to insert the matching groove 31 and the screw 3a is loosened appropriately so that the clamp arm 2 can be adjusted in angle relative to the tweezer arm 4. After the adjustment is in place, a small screwdriver is used to insert the matching groove 31 and the screw 3a is tightened to fix the relative angle position of the clamp arm 2 and the tweezer arm 4.

[0036] After the screw 3a is tightened, the clamp arm 2 and the tweezer arm 4 are clamped using the screw head of the screw 3a and the limit plate 3d. At the same time, the rubber sleeve 3e is used to abut against the clamp arm 2 and the tweezer arm 4 to prevent the clamp arm 2 from scratching the tweezer arm 4 during multiple rotation adjustments, so that the clamp arm 2 and the tweezer arm 4 form "soft contact" to ensure their service life.

[0037] In order to prevent the screw 3 a from directly contacting and scratching the tweezer arm 4 , the surface of the screw head of the screw 3 a facing the tweezer arm 4 is covered with a rubber pad 3 b , which contacts the outer side of the tweezer arm 4 .

[0038] like Figure 4 , 8 As shown, a third embodiment is proposed, which is an improvement based on the second embodiment. In order to increase the structural strength of the front end of the forceps arm 4 and also to enhance the structural strength of the connection between the clamp arm 2 and the forceps arm 4, the front end of the forceps arm 4 is bent inward to form a bending portion 4a. The bending portion 4a is integrally connected with a connecting plate portion 4b parallel to the clamp arm 2. The connecting plate portion 4b is rotatably and adjustably connected to the rear end of the clamp arm 2 via a rotating adjustment member 3, and the connecting plate portion 4b is used as a positioning basis to connect the clamp arm 2.

[0039] like Fig. 9 As shown, a fourth embodiment is proposed, which can be combined with the first to third embodiments mentioned above. The front end edge of the forceps arm 4 is an arc-shaped edge, and the rotation adjustment axis of the clamp arm 2 is taken as the center of the circle. The front end edge of the forceps arm 4 is engraved with a plurality of scale grooves 4c (elongated grooves) distributed along the length direction of the arc-shaped edge for marking angles.

[0040] The clamp arm 2 is engraved with an indicator line groove 2a (an elongated groove), which points to the scale line groove 4c for marking the relative angle between the clamp arm 2 and the tweezer arm 4. The indicator line groove 2a is perpendicular to the rotation adjustment axis of the clamp arm 2, and the scale line groove 4c is also perpendicular to the rotation adjustment axis of the clamp arm 2.

[0041] The advantage of adopting the fourth embodiment is that the relative angle between the clamp arm 2 and the forceps arm 4 can be adjusted more accurately, which makes it easier for doctors to clearly identify and record the relative angle value between the clamp arm 2 and the forceps arm 4.

[0042] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "front", "back", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention; in the present invention, it should also be noted that the terms "installation" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, an integrally formed connection, a mechanical connection, or an indirect connection through an intermediate connecting component, and the specific meaning of the terms in the present invention can be understood according to the specific circumstances.

[0043] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention, and any figure mark in the claims should not be regarded as limiting the claims involved.

[0044] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An angle-adjustable capsulorhexis forceps, comprising: Forceps handle (5); a pair of forceps arms (4) integrally formed with the forceps handle (5); A pair of clamp arms (2) respectively connected to two tweezer arms (4), wherein the ends of the clamp arms (2) are provided with tweezer claws (1); The invention is characterized in that it also comprises a pair of rotating adjustment members (3), wherein the two rotating adjustment members (3) are respectively arranged at the connection between the two clamp arms (2) and the tweezer arms (4), and the rear end of the clamp arm (2) is connected to the front end of the tweezer arms (4) in an adjustable manner by rotating up and down through the rotating adjustment members (3).

2. The capsulorhexis forceps with adjustable angle according to claim 1, characterized in that: The rotary adjustment member (3) comprises: A nut sleeve (3c), one end of which is fixed with a limiting plate (3d) that abuts against the inner side of the clamp arm (2); the nut sleeve (3c) is a circular sleeve structure, the inner hole of which is a threaded hole; the nut sleeve (3c) is rotatably connected to the clamp arm (2) and the tweezer arm (4); A rubber sleeve (3e), wherein the rubber sleeve (3e) is a circular ring gasket, the nut sleeve (3c) rotatably penetrates the inner hole of the rubber sleeve (3e), and the rubber sleeve (3e) is located between the clamp arm (2) and the tweezer arm (4) and abuts against the clamp arm (2) and the tweezer arm (4); The screw (3a) is inserted into the inner hole of the nut sleeve (3c) from the outside of the tweezer arm (4), and the screw head of the screw (3a) is pressed against the outside of the tweezer arm (4).

3. The capsulorhexis forceps with adjustable angle according to claim 2, characterized in that: The screw head of the screw (3a) is provided with a strip-shaped screwing groove (31) for screwing operation by a screwdriver.

4. The capsulorhexis forceps with adjustable angle according to claim 2, characterized in that: The surface of the screw head of the screw (3a) facing the tweezer arm (4) is covered with a rubber pad (3b), and the rubber pad (3b) contacts the outer side of the tweezer arm (4).

5. The capsulorhexis forceps with adjustable angle according to claim 1 or 2, characterized in that: The front end of the forceps arm (4) is bent inwardly to form a bent portion (4a), and the bent portion (4a) is integrally connected to a connecting plate portion (4b) parallel to the clamp arm (2), and the connecting plate portion (4b) is rotatably and adjustably connected to the rear end of the clamp arm (2) via a rotating adjustment member (3).

6. The capsulorhexis forceps with adjustable angle according to claim 2 or 3, characterized in that: The front end edge of the tweezer arm (4) is an arc-shaped edge, with the rotation adjustment axis of the clamp arm (2) as the center of the circle, and the front end edge of the tweezer arm (4) is engraved with a plurality of scale grooves (4c) distributed along the length direction of the arc-shaped edge and used to mark angles; The clamp arm (2) is engraved with an indicator line groove (2a), and the indicator line groove (2a) points to the scale line groove (4c) for marking the relative angle between the clamp arm (2) and the forceps arm (4).

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