Intraocular lens loop fixing clamp

Abstract

The utility model provides an artificial lens loop fixing clamp. The artificial lens loop fixing clamp comprises an elastic holding part and a fixing part, the number of the fixing parts is two, the clamping surfaces of the two fixing parts are arranged oppositely, and the two fixing parts are respectively connected with the elastic holding part; the elastic holding part has an initial state in which the elastic holding part is not pressed by external force and a deformation state in which the elastic holding part deforms after being pressed by the external force; in the initial state, the clamping faces of the two fixing parts abut against each other and are attached to each other. And in the deformation state, the elastic holding part drives the clamping surfaces of the two fixing parts to be separated from each other. Compared with the prior art, the intraocular lens loop fixing clamp can clamp and fix the intraocular lens loop more stably, and slipping of the intraocular lens loop is avoided.

Description

Technical Field

[0001] This utility model relates to the field of medical auxiliary device technology, and in particular to an intraocular lens haptic fixation clamp. Background Technology

[0002] Cataracts are the most common eye disease. The main treatment is surgical removal of the cataract and implantation of an artificial lens. During cataract surgery, if there is severe rupture of the posterior capsule or extensive tearing of the suspensory ligaments, the artificial lens cannot be implanted into the capsular bag. In such cases, an artificial lens suspension surgery is required.

[0003] One surgical procedure for intraocular lens (IOL) suspension involves inserting the anterior and posterior haptics of the intraocular lens (IOL) through the ciliary sulcus or the pars plana of the ciliary body, respectively, into the eye. The tail of the haptics is then inserted into the sclera for fixation. During the IOL suspension surgery, the IOL is first implanted into the anterior chamber using an injector. Then, a 1 ml syringe needle is inserted into the eye approximately 2-4 mm from the limbus. The tail of the IOL haptic is inserted into the syringe needle, and the needle is slowly withdrawn from the eye, simultaneously pulling the IOL haptic out of the eye, with the tail of the haptic resting on the scleral surface. The other IOL haptic is then pulled out of the eye in the same manner. During this process, traction is applied to the IOL, which may cause the contralateral haptic to retract back into the eye.

[0004] To prevent the intraocular lens haptic from regressing into the eye, there are currently two solutions: 1. Insert the end of the intraocular lens haptic placed outside the eye into the needle of a 1 ml syringe for temporary fixation; 2. Insert a small instrument similar to a rubber band into the end of the intraocular lens haptic placed outside the eye for temporary fixation.

[0005] However, existing methods for fixing intraocular lens (IOL) haptics have several drawbacks: 1. Fixation with a 1 ml syringe needle: Typically, the portion of the IOL haptic protruding from the eye is relatively short. Therefore, inserting the haptic into a 1 ml syringe needle provides poor fixation and is prone to slippage. Furthermore, the curved design of the IOL haptic requires skill to insert the needle, making it difficult to maneuver. 2. Fixation with a rubber band: The rubber band lacks internal anti-slip design. After insertion, even slight pulling on the IOL can cause the rubber band to slip, failing to provide adequate fixation. Utility Model Content

[0006] To address the technical problems of existing technologies that use syringes or rubber rings to fix intraocular lens (IOL) haptics, which are prone to slippage and involve difficult operation, this invention provides an IOL haptic fixation clamp. This clamp features two opposing fixing parts, each connected to an elastic gripping part. The two fixing parts abut against each other to clamp and fix the IOL haptic. The elasticity of the gripping part maintains this abutment, ensuring stable clamping and fixation of the IOL haptic, preventing slippage. In use, simply apply force to the elastic gripping part to separate the two fixing parts, allowing the IOL haptic to easily pass through. Once inserted, reducing the force (or releasing) causes the gripping part to pull the two fixing parts closer together, automatically clamping and fixing the IOL haptic. The entire operation is simple and convenient.

[0007] An intraocular lens haptic clamp includes an elastic gripping part and a fixing part;

[0008] The fixing part is provided in two parts, the clamping surfaces of the two fixing parts are arranged facing each other, and the two fixing parts are respectively connected to the elastic gripping part;

[0009] The elastic grip portion has an initial state without external force compression and a deformed state after being compressed by external force.

[0010] In the initial state, the clamping surfaces of the two fixing parts abut and fit together;

[0011] In the deformed state, the elastic gripping part causes the clamping surfaces of the two fixing parts to separate from each other.

[0012] Preferably, the elastic grip portion has an arc-shaped structure, and the two fixing portions are correspondingly connected to the two ends of the elastic grip portion.

[0013] Preferably, both fixing parts are rectangular plate-shaped structures, and the two fixing parts are arranged in parallel and facing each other.

[0014] Preferably, the two fixing parts are a first fixing part and a second fixing part;

[0015] The intraocular lens haptic clamp further includes a first connecting part and a second connecting part;

[0016] The first fixing part is connected to one end of the elastic gripping part through the first connecting part;

[0017] The second fixing part is connected to the other end of the elastic gripping part via the second connecting part;

[0018] Furthermore, the first connecting portion and the second connecting portion alternately connect the two ends of the elastic grip portion to the two fixing portions.

[0019] Preferably, the elastic gripping part, the first connecting part, the second connecting part, the first fixing part, and the second fixing part are integrally formed.

[0020] Preferably, the widths of the first connecting portion and the second connecting portion are both smaller than the width of the elastic grip portion, and the widths of the first connecting portion and the second connecting portion are both smaller than the width of the fixing portion;

[0021] Furthermore, the first connecting portion and the second connecting portion are staggered along the width direction.

[0022] Preferably, the outer surface of the elastic grip portion is provided with anti-slip texture.

[0023] Preferably, the clamping surface of the fixing part is provided with an anti-slip structure.

[0024] Compared with the prior art, the intraocular lens haptic clamp provided by this utility model includes an elastic gripping part and a fixing part; two fixing parts are provided, the clamping surfaces of the two fixing parts are arranged facing each other, and the two fixing parts are respectively connected to the elastic gripping part; the elastic gripping part has an initial state without external force and a deformed state after being compressed by external force; in the initial state, the clamping surfaces of the two fixing parts abut against each other; in the deformed state, the elastic gripping part drives the clamping surfaces of the two fixing parts to separate from each other. When using the aforementioned intraocular lens haptic fixation clamp, simply applying force to the elastic gripping part separates the two fixation parts, allowing the intraocular lens haptic to smoothly pass between them. After the haptic is inserted, simply reducing the force applied to the elastic gripping part (or loosening it) causes it to return to its original shape through its elasticity, moving the two fixation parts to abut against each other and securely clamp the haptic. The overall operation is simple and convenient. Furthermore, the elastic gripping part continuously maintains the position of the two fixation parts, ensuring a consistent and effective clamping of the haptic, preventing slippage. During intraocular lens suspension surgery, the haptic fixation clamp stably clamps and fixes the haptic already placed outside the eye, preventing it from re-entering the eye. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 A three-dimensional structural schematic diagram of an intraocular lens haptic clamp provided in one embodiment (when the elastic gripping part is in a deformed state);

[0027] Figure 2 for Figure 1 The front view of the structure shown;

[0028] Figure 3 for Figure 1 Top view of the structure shown;

[0029] Figure 4 A front view of an intraocular lens haptic clamp provided in one embodiment (with the elastic grip in its initial state);

[0030] Figure 5 This is a schematic diagram of the structure of an intraocular lens haptic fixation clamp provided in one embodiment when used in an intraocular lens suspension surgery. Detailed Implementation

[0031] To enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0032] It should be noted that when a component is referred to as being "fixed to", "mounted to", or "set on" another component, it can be directly on or indirectly set on the other component; when a component is "connected" to another component, or a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to the other component.

[0033] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0034] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "a plurality of" or "several" means two or more, unless otherwise explicitly specified.

[0035] It should be noted that the structures, proportions, sizes, etc., shown in the accompanying drawings are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which this application can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size should still fall within the scope of the technical content disclosed in this application, provided that they do not affect the effects and purposes that this application can produce.

[0036] This utility model provides an intraocular lens haptic clamp, which includes an elastic gripping part and a fixing part; two fixing parts are provided, with the clamping surfaces of the two fixing parts facing each other, and the two fixing parts are respectively connected to the elastic gripping part; the elastic gripping part has an initial state without external force and a deformed state after being compressed by external force; in the initial state, the clamping surfaces of the two fixing parts abut against each other; in the deformed state, the elastic gripping part drives the clamping surfaces of the two fixing parts to separate from each other. When using the aforementioned intraocular lens haptic fixation clamp, simply applying force to the elastic gripping part separates the two fixation parts, allowing the intraocular lens haptic to smoothly pass between them. After the haptic is inserted, simply reducing the force applied to the elastic gripping part (or loosening it) causes it to return to its original shape through its elasticity, moving the two fixation parts to abut against each other and securely clamp the haptic. The overall operation is simple and convenient. Furthermore, the elastic gripping part continuously maintains the position of the two fixation parts, ensuring a consistent and effective clamping of the haptic, preventing slippage. During intraocular lens suspension surgery, the haptic fixation clamp stably clamps and fixes the haptic already placed outside the eye, preventing it from re-entering the eye.

[0037] Please refer to the following: Figures 1 to 4 In one embodiment, an intraocular lens haptic fixation clamp 100 is provided, which is mainly used to clamp and fix the intraocular lens haptic that has been placed outside the eye during intraocular lens suspension surgery, so as to prevent the intraocular lens haptic that has been placed outside the eye from falling back into the eye.

[0038] The intraocular lens haptic clamp 100 includes an elastic gripping part 10 and a fixing part 20. The elastic gripping part 10 refers to a component that can undergo elastic deformation under force, and can return to its initial shape through its own elasticity when the force decreases or disappears. Two fixing parts 20 are provided, with their clamping surfaces 21 facing each other, and each fixing part 20 is connected to the elastic gripping part 10.

[0039] The elastic gripping part 10 has an initial state without external pressure and a deformed state after being compressed by external force. In the initial state, the clamping surfaces 21 of the two fixing parts 20 abut against each other, thereby clamping and fixing the artificial lens haptic through the two clamping surfaces 21. In the deformed state, the elastic gripping part 10 causes the clamping surfaces 21 of the two fixing parts 20 to separate from each other, thereby allowing the artificial lens haptic to smoothly enter between the clamping surfaces 21 of the two fixing parts 20.

[0040] In use, the operator first applies force to the elastic gripping part 10, causing the clamping surfaces 21 of the two fixing parts 20 to separate, allowing the intraocular lens haptic, which is already placed outside the eye, to smoothly enter between the two clamping surfaces 21. After the tail end of the intraocular lens haptic enters between the two clamping surfaces 21, the operator releases the elastic gripping part 10. The elastic gripping part 10 then recovers its shape through its elasticity, causing the clamping surfaces 21 of the two fixing parts 20 to abut and adhere to each other, thereby clamping and fixing the tail end of the intraocular lens haptic through the two clamping surfaces 21, thus preventing the intraocular lens haptic from retracting into the eye.

[0041] During operation, the intraocular lens haptic clamp 100 only requires the operator to apply force to the elastic gripping part 10 and release it. The elastic gripping part 10 automatically clamps and fixes the intraocular lens haptic using its own elasticity, making the operation simple and convenient. Furthermore, the elastic gripping part 10 keeps the clamping surfaces 21 of the two fixing parts 20 in a continuously clamped state, preventing the intraocular lens haptic from slipping out. Simultaneously, when clamping and fixing the intraocular lens haptic, the cooperation between the elastic gripping part 10 and the fixing part 20 provides a continuous and stable clamping and fixing of the intraocular lens haptic, eliminating the need for the operator to continuously apply force to the elastic gripping part 10, further reducing the difficulty of operation.

[0042] Preferably, in one embodiment, the elastic grip portion 10 has an arc-shaped structure, meaning that the elastic grip portion 10 is entirely arc-shaped. The elastic grip portion 10 can be a segment of an arc on a complete circular ring, an arc on an elliptical ring, or even an arc on an irregularly shaped ring (i.e., the elastic grip portion 10 can be an arc structure composed of multiple different arcs). By making the elastic grip portion 10 an arc-shaped structure, it is easier for the operator to grip and apply force to the elastic grip portion 10. The two fixing portions 20 are correspondingly connected to the two ends of the elastic grip portion 10, that is, one fixing portion 20 is connected to one end of the elastic grip portion 10, and the other fixing portion 20 is connected to the other end of the elastic grip portion 10. Specifically, in one embodiment, the elastic grip portion 10 has an overall "teardrop" shape, with the larger end curved in an arc, and the smaller end connected to both fixing portions 20.

[0043] Preferably, in one embodiment, both fixing parts 20 are rectangular plate structures, and the two fixing parts 20 are arranged parallel to each other. This arrangement increases the contact area between the two clamping surfaces 21, thereby further ensuring the clamping effect on the artificial lens haptic.

[0044] Preferably, in one embodiment, the two fixing parts 20 are divided into a first fixing part 22 and a second fixing part 23. The intraocular lens haptic clamp 100 further includes a first connecting part 30 and a second connecting part 40. The first fixing part 22 is connected to one end of the elastic gripping part 10 through the first connecting part 30, and the second fixing part 23 is connected to the other end of the elastic gripping part 10 through the second connecting part 40. The first connecting part 30 and the second connecting part 40 alternately connect the two ends of the elastic gripping part 10 to the two fixing parts 20. That is, in this embodiment, the fixing part 20 and the elastic gripping part 10 are indirectly connected. Specifically, the staggered connection between the first connecting portion 30 and the second connecting portion 40 of the elastic gripping portion 10 and the two fixing portions 20 means that the first connecting portion 30 connects the end of the elastic gripping portion 10 away from the first fixing portion 22 to the first fixing portion 22, and the second connecting portion 40 connects the end of the elastic gripping portion 10 away from the second fixing portion 23 to the second fixing portion 23, forming an overall staggered connection structure. For example, as... Figure 2 As shown, the elastic grip portion 10 has two ends, a first end 11 and a second end 12. The first end 11 is located on the side closer to the second fixing portion 23, and the second end 12 is located on the side closer to the first fixing portion 22. The first connecting portion 30 connects the first end 11 to the first fixing portion 22, and the second connecting portion 40 connects the second end 12 to the second fixing portion 23. The first connecting portion 30 and the second connecting portion 40 together form an "X" shaped interlaced structure. This structure allows the operator to press on the outer surface 13 of the elastic grip portion 10 to separate the two fixing portions 20. Force can be applied only from the outside of the elastic grip portion 10 to manipulate the intraocular lens haptic clamp 100, eliminating the need to apply force from the inside of the elastic grip portion 10, making it easier for the operator to apply force.

[0045] Preferably, in one embodiment, the elastic grip portion 10, the first connecting portion 30, the second connecting portion 40, the first fixing portion 22, and the second fixing portion 23 are integrally formed. Specifically, one end of the first connecting portion 30 is integrally cast with the first fixing portion 22, and the other end of the first connecting portion 30 is integrally cast with one end of the elastic grip portion 10. One end of the second connecting portion 40 is integrally cast with the second fixing portion 23, and the other end of the second connecting portion 40 is integrally cast with the other end of the elastic grip portion 10. This ensures the reliability of the connection between the various structures.

[0046] Preferably, in one embodiment, the widths of both the first connecting portion 30 and the second connecting portion 40 are smaller than the width of the elastic gripping portion 10, and the widths of both the first connecting portion 30 and the second connecting portion 40 are smaller than the width of the fixing portion 20. Furthermore, the first connecting portion 30 and the second connecting portion 40 are staggered along the width direction, such as... Figure 3 As shown, one connecting part is located on the upper side, and the other connecting part is located on the lower side; the two connecting parts will not interfere with each other. Specifically, in one embodiment, the width of the first connecting part 30 may be less than half the width of the first fixing part 22, and the width of the second connecting part 40 may be less than half the width of the second fixing part 23. The first fixing part 22, the first connecting part 30, and the elastic grip part 10 are all designed with a U-shaped notch. The second fixing part 23, the second connecting part 40, and the elastic grip part 10 are all designed with a U-shaped notch. The two U-shaped structures interlock and fit together.

[0047] Specifically, in one embodiment, the two fixing portions 20 have identical shapes, with a length of approximately 5 mm, a width of approximately 2 mm, and a thickness of approximately 1 mm. The elastic grip portion 10 has a width of approximately 2 mm and a thickness of approximately 1 mm. In the initial state, the height of the elastic grip portion 10 is approximately 10 mm, and its length is approximately 9 mm.

[0048] Preferably, in one embodiment, the outer surface 13 of the elastic grip 10 is provided with anti-slip texture to prevent accidental slippage when the operator manipulates the artificial lens haptic clamp 100.

[0049] Preferably, in one embodiment, the clamping surface 21 is provided with an anti-slip structure 24. Specifically, in one embodiment, the anti-slip structure 24 is a slightly raised knurled pattern, which can increase friction and further ensure the clamping and fixing effect on the artificial lens haptic.

[0050] Specifically, in one embodiment, the elastic gripping part 10, the first connecting part 30, the second connecting part 40, and the fixing part 20 can all be made of metal material that can withstand high temperature and pressure sterilization, so that the artificial lens haptic fixation clamp 100 can be repeatedly sterilized by high temperature and pressure and can be reused.

[0051] Please refer to the following: Figure 5During intraocular lens suspension surgery, the operator gently presses the elastic grip 10, at which point the first fixing part 22 and the second fixing part 23 open, with an opening width of approximately 3 mm. The clamping surface 21 of the opened fixing part 20 is placed at the exposed anterior haptic 210 of the intraocular lens 200. For a more secure clamping, the anterior haptic 210, which is close to the eyeball wall, can be clamped by the fixing part 20. Finally, the operator releases the elastic grip 10, which, relying on its own elasticity, clamps the clamping surfaces 21 of the two fixing parts 20 at the tail end of the anterior haptic 210 of the intraocular lens 200. At this time, when using a 1 ml syringe needle 300 to pull the posterior haptic 220 of the intraocular lens 200 out of the eyeball, even if a large traction force is applied to the intraocular lens 200, the anterior haptic 210 of the intraocular lens 200 will not be pulled back into the eye.

[0052] The described intraocular lens haptic fixation clamp 100 is a novel ophthalmic surgical aid. This aid effectively clamps the end of the intraocular lens haptic, providing good fixation and preventing the haptic end from moving back and forth due to external force pulling on the intraocular lens. This aid is small in size, simple and easy to use, and requires no learning curve.

[0053] The above description is merely an embodiment of this utility model. It should be noted that those skilled in the art can make improvements without departing from the inventive concept of this utility model, but these improvements all fall within the protection scope of this utility model.

Claims

1. A haptic clamp for fixing an intraocular lens, characterized in that, Includes a flexible grip and a fixing part; The fixing part is provided in two parts, the clamping surfaces of the two fixing parts are arranged facing each other, and the two fixing parts are respectively connected to the elastic gripping part; The elastic grip portion has an initial state without external force compression and a deformed state after being compressed by external force. In the initial state, the clamping surfaces of the two fixing parts abut and fit together; In the deformed state, the elastic gripping part causes the clamping surfaces of the two fixing parts to separate from each other; The elastic grip portion has an arc-shaped structure, and the two fixing portions are connected to the two ends of the elastic grip portion respectively; The two fixing parts are a first fixing part and a second fixing part; The intraocular lens haptic clamp further includes a first connecting part and a second connecting part; The first fixing part is connected to one end of the elastic gripping part through the first connecting part; The second fixing part is connected to the other end of the elastic gripping part via the second connecting part; Furthermore, the first connecting portion and the second connecting portion alternately connect the two ends of the elastic gripping portion to the two fixing portions; The widths of the first connecting portion and the second connecting portion are both smaller than the width of the elastic grip portion, and the widths of the first connecting portion and the second connecting portion are both smaller than the width of the fixing portion; Furthermore, the first connecting portion and the second connecting portion are staggered along the width direction.

2. The intraocular lens haptic clamp according to claim 1, characterized in that, Both of the fixing parts are rectangular plate-shaped structures, and the two fixing parts are arranged in parallel and facing each other.

3. The intraocular lens haptic clamp according to claim 1, characterized in that, The elastic gripping part, the first connecting part, the second connecting part, the first fixing part, and the second fixing part are integrally formed.

4. The intraocular lens haptic clamp according to any one of claims 1 to 3, characterized in that, The outer surface of the elastic grip is provided with anti-slip texture.

5. The intraocular lens haptic clamp according to claim 1, characterized in that, The clamping surface of the fixing part is provided with an anti-slip structure.

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