Position adjusting instrument for intraocular lens implantation operation of lens eye

Abstract

The utility model provides a position adjusting instrument for an intraocular lens implantation operation of a lens eye, and relates to the field of ophthalmology medical instruments, the position adjusting instrument comprises a handle and a position adjusting hook acting piece; the position adjusting hook acting piece comprises a straight rod connected to the front end of the handle, a transition rod connected to the front end of the straight rod and a position adjusting rod connected to the front end of the transition rod. A first included angle alpha is formed between the transition rod and the straight rod; a position adjusting part is arranged at the front end of the position adjusting rod, and a second included angle beta is formed between the position adjusting rod and the transition part. According to the position adjusting instrument, through the unique structural design, the operation performance in a crystalline lens implantation operation is remarkably improved; wherein the position adjusting hook acting piece is composed of a straight rod, a transition rod and a position adjusting rod, and the operation position adjusting difficulty is effectively reduced through the specific angle design.

Description

Technical Field

[0001] This application relates to the field of ophthalmic medical devices, and in particular to a positioning device for implantation of an intraocular lens in phakic eyes. Background Technology

[0002] The successful implantation of posterior chamber intraocular lenses in phakic eyes relies on the assistance of positioning instruments. In the current ICL / TICL implantation procedure, an incision must be made at the edge of the cornea so that the ICL / TICL can be implanted through this incision. Figure 1 The existing conventional positioning instrument structure was demonstrated. When using the positioning hook to locate the four haptics of ICL / TICL, the existing positioning instrument is relatively easy to handle the haptics at the distal incision. However, when positioning the haptics at the proximal incision, the conventional positioning hook is limited by the opening angle of its design, making it more difficult to complete the operation of positioning the haptics near the incision. Difficult positioning can easily lead to excessive disturbance of the iris tissue during the operation, and even damage to the lens and suspensory ligaments. Utility Model Content

[0003] This application provides a positioning device for phakic intraocular lens implantation surgery to solve the technical problems existing in the background art.

[0004] The technical solution provided in this application is as follows:

[0005] An adjustment device for phakic intraocular lens implantation surgery includes a handle and an adjustment hook actuation element; the adjustment hook actuation element includes:

[0006] A straight rod connected to the front end of the handle;

[0007] A transition rod is connected to the front end of the straight rod, and the transition rod and the straight rod form a first included angle α;

[0008] An adjusting rod is connected to the front end of the transition rod. The front end of the adjusting rod is provided with an adjusting part, and a second included angle β is formed between the adjusting rod and the transition rod.

[0009] Furthermore, the first included angle α is an obtuse angle, with a value range of 100°-165°.

[0010] Furthermore, the second included angle β is an acute angle, with a value range of 15°-45°.

[0011] Furthermore, the adjusting part is a hemispherical or semi-ellipsoidal structure.

[0012] Furthermore, the surface of the hemisphere or semi-ellipsoid is frosted.

[0013] Furthermore, in the dimensions of the semi-ellipsoidal adjustment section, the lengths of each semi-axis are: a = 0.3-0.4 mm; b = 0.15-0.25 mm; c = 0.1-0.15 mm.

[0014] Furthermore, the radius of the hemispherical adjustment part is 0.15-0.2 mm.

[0015] Furthermore, the straight rod has a length of 80-100mm and a diameter of 8-10mm; the transition rod has a length of 15-25mm and a diameter of 0.5-1.0mm; and the adjusting rod has a length of 10-20mm.

[0016] Furthermore, the handle is a round rod, and the handle is provided with a frosted surface to increase grip friction.

[0017] Furthermore, the adjusting hook actuating element is made of stainless steel, or the adjusting hook actuating element is made of high-temperature resistant polymer material.

[0018] The handle is made of stainless steel, or the handle is made of a high-temperature resistant polymer material.

[0019] Beneficial effects:

[0020] The positioning device provided in this application for phakic intraocular lens implantation surgery includes a handle and a positioning hook actuator. The positioning hook actuator includes a straight rod connected to the front end of the handle, a transition rod connected to the front end of the straight rod, and a positioning rod connected to the front end of the transition rod. A first angle α is formed between the transition rod and the straight rod. The positioning rod has a positioning part at its front end, and a second angle β is formed between the positioning rod and the transition rod. In the positioning device of this application, the positioning hook actuator, through the carefully designed first angle α and second angle β, effectively improves the operational flexibility of the device at different angles and positions, facilitating the fovea positioning operation at the proximal incision, reducing the positioning risk during intraocular lens implantation, and reducing the potential risk of damage to ocular tissues during surgery. At the same time, the technical difficulty of the surgical operation is reduced, shortening the surgeon's learning curve and the time required to master the surgical technique. Attached Figure Description

[0021] 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 recorded in this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the structure of an existing positioning device;

[0023] Figure 2 This is a schematic diagram of the structure of a positioning device for implantation surgery of an intraocular lens in a phakic eye, according to this embodiment.

[0024] Figure 3 for Figure 2 A schematic diagram of the structure of the second included angle β in the adjusting hook action;

[0025] Figure 4 for Figure 2 A simplified line drawing of the adjusting rod and adjusting part in the adjusting hook action;

[0026] Among them, 1. handle, 2. adjusting hook action, 21. straight rod, 22. transition rod, 23. adjusting rod, 24. adjusting part. Detailed Implementation

[0027] 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.

[0028] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly set on the other component; when a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to the other component.

[0029] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the positioning instrument or element referred to in the phakic intraocular lens implantation surgery must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0030] 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.

[0031] It should be noted that the structures, proportions, sizes, etc., shown in the accompanying drawings of this specification 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.

[0032] The embodiments in this application are written in a progressive manner.

[0033] See Figures 2 to 4 As shown in the embodiment of this application, an adjustment device for phakic intraocular lens implantation surgery is provided, including a handle and an adjustment hook actuating element;

[0034] The adjusting hook component includes:

[0035] A straight rod connected to the front end of the handle;

[0036] A transition rod is connected to the front end of the straight rod, and the transition rod and the straight rod form a first included angle α;

[0037] An adjusting rod is connected to the front end of the transition rod. The front end of the adjusting rod is provided with an adjusting part, and a second included angle β is formed between the adjusting rod and the transition rod.

[0038] In the above scheme, the adjustment hook actuator, through the carefully designed first included angle α and second included angle β, effectively improves the operational flexibility of the instrument at different angles and positions, which helps to simplify the positioning operation of the haptic at the proximal incision, reduces the adjustment risk during lens implantation, and reduces the potential risk of damage to ocular tissues during surgery; at the same time, the technical difficulty of the surgical operation is reduced, shortening the time required for the surgeon to learn and master the surgical technique.

[0039] Furthermore, the first included angle α is an obtuse angle, ranging from 100° to 165°. The second included angle β is an acute angle, ranging from 15° to 45°. By utilizing these specifically designed first and second included angles α and β, the operational flexibility of the instrument at different angles and positions is effectively improved, facilitating the simplification of foot haptic positioning at the proximal incision site.

[0040] Furthermore, the adjustment section is a semi-ellipsoid or hemispherical structure; the surface of the hemispherical or semi-ellipsoidal structure is frosted. Preferably, in the dimensions of the semi-ellipsoidal adjustment section, the lengths of each semi-axis are: a = 0.3-0.4 mm; b = 0.15-0.25 mm; c = 0.1-0.15 mm; and the radius of the hemispherical adjustment section is 0.15-0.2 mm. The semi-ellipsoidal adjustment section structure design, combined with the setting of a first included angle α and a second included angle β within a specific angle range, effectively improves the operational flexibility of the instrument at different angles and positions, especially simplifying the positioning operation of the haptic at the proximal incision, reducing the adjustment risk during lens implantation, and reducing the potential risk of damage to ocular tissues during surgery.

[0041] Furthermore, the straight rod has a length of 80-100mm and a diameter of 8-10mm; the transition rod has a length of 15-25mm and a diameter of 0.5-1.0mm; and the adjusting rod has a length of 10-20mm.

[0042] The handle is a round rod with a frosted surface to increase grip friction.

[0043] The adjusting hook actuating element is made of stainless steel, or it is made of a high-temperature resistant polymer material. The handle is made of stainless steel, or it is made of a high-temperature resistant polymer material.

[0044] The positioning instrument provided in this application for phakic intraocular lens implantation surgery adopts a semi-ellipsoidal positioning part and improves the angle and direction of the positioning hook action to facilitate precise operation, thus solving the problem of high operation difficulty of existing surgical instruments.

[0045] The above description of the disclosed embodiments enables those skilled in the art to make or use this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A positioning device for implantation of an intraocular lens in phakic eyes, characterized in that, Includes a handle and an adjusting hook actuation element; the adjusting hook actuation element includes: A straight rod connected to the front end of the handle; A transition rod is connected to the front end of the straight rod, and the transition rod and the straight rod form a first included angle α; An adjusting rod is connected to the front end of the transition rod. The front end of the adjusting rod is provided with an adjusting part, and a second included angle β is formed between the adjusting rod and the transition rod.

2. The positioning device for phakic intraocular lens implantation surgery according to claim 1, characterized in that, The first included angle α is an obtuse angle, and its value ranges from 100° to 165°.

3. The positioning device for phakic intraocular lens implantation surgery according to claim 2, characterized in that, The second included angle β is an acute angle, and its value ranges from 15° to 45°.

4. The positioning device for phakic intraocular lens implantation surgery according to claim 2, characterized in that, The adjustment part has a hemispherical or semi-ellipsoidal structure.

5. The positioning device for phakic intraocular lens implantation surgery according to claim 4, characterized in that, The surface of the hemisphere or semi-ellipsoid is frosted.

6. The positioning device for phakic intraocular lens implantation surgery according to claim 4, characterized in that, In the dimensions of the semi-ellipsoidal adjustment section, the lengths of each semi-axis are: a = 0.3-0.4 mm; b = 0.15-0.25 mm; c = 0.1-0.15 mm.

7. The positioning device for phakic intraocular lens implantation surgery according to claim 4, characterized in that, In the dimensions of the hemispherical adjustment part, the radius of the hemispherical part is 0.15-0.2mm.

8. The positioning device for phakic intraocular lens implantation surgery according to any one of claims 1-7, characterized in that, The straight rod is 80-100mm long and 8-10mm in diameter; the transition rod is 15-25mm long and 0.5-1.0mm in diameter; the adjusting rod is 10-20mm long.

9. The positioning device for phakic intraocular lens implantation surgery according to claim 8, characterized in that, The handle is a round rod with a frosted surface to increase grip friction.

10. The positioning device for phakic intraocular lens implantation surgery according to any one of claims 1-7 and 9, characterized in that, The adjusting hook actuating element is made of stainless steel, or the adjusting hook actuating element is made of high temperature resistant polymer material; The handle is made of stainless steel, or the handle is made of a high-temperature resistant polymer material.

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