Novel strabismus operation hook

Abstract

The utility model relates to the technical field of medical instruments, and particularly discloses a novel strabismus operation hook which comprises a holding rod, a telescopic sliding block is connected into the holding rod in a sliding mode, a first through hole and a second through hole are formed in the surface of the telescopic sliding block, a first hook body is rotationally connected to the bottom of the first through hole, and a second hook body is rotationally connected to the bottom of the second through hole. An angle adjusting rotating rod penetrates through the second through hole and is in sliding connection with the second hook body, a length adjusting rotating rod penetrates through the first through hole and is meshed with the first through hole, the two hook bodies are arranged at the bottom of the telescopic sliding block and synchronously rotate through a gear meshing structure, and transmission is conducted through the angle adjusting rotating rod; an internal thread in a first through hole of the telescopic sliding block is meshed with an external thread of a length adjusting rotating rod, the holding rod is held by a single hand, a thumb and an index finger are used for rotating corresponding rotary knobs, and therefore when one hand conducts shearing or suturing operation, the other hand independently completes stretching and retracting and angle adjusting of traction and a hook. The independent operation capability of doctors is improved, and the dependence on assistants is reduced.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically a novel strabismus surgical hook. Background Technology

[0002] In strabismus surgery, the conventional strabismus hook is an important surgical instrument, mainly used for separating, retracting, and locating the extraocular muscles. However, traditional hooks require the surgeon to focus on retracting the extraocular muscles with one hand while performing other operations such as cutting and suturing with the other, and the assistant is responsible for adjusting the angle or assisting with the retraction. This operation method increases the communication burden and may affect the efficiency of the operation. Due to the reliance on manual assistance, the angle and position adjustment of the hook is not flexible enough, which may lead to misoperation and increase the risk of tissue damage to the patient. Therefore, we propose a new type of strabismus surgical hook. Utility Model Content

[0003] The purpose of this invention is to provide a novel strabismus surgical hook to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a novel strabismus surgical hook, comprising a gripping rod, a telescopic slider slidably connected inside the gripping rod, a first through hole and a second through hole on the surface of the telescopic slider, a first hook body rotatably connected to the bottom of the first through hole, a second hook body rotatably connected to the bottom of the second through hole, gears fixedly connected to the middle of both the first and second hook bodies, the gears of the first and second hook bodies meshing with each other, an angle adjustment rod passing through the second through hole and slidably connected to the second hook body, and a length adjustment rod passing through and meshing with the first through hole.

[0005] The telescopic slider is fixedly connected to two sides with snap-fit ​​sliders, the first through hole has an internal thread, and the bottom of the first through hole and the second through hole are fixedly connected with snap-fit ​​rings.

[0006] The first hook and the second hook are provided with snap-fit ​​grooves on the top outer side. The first hook is provided with a first slot on the top. The bottom end of the length adjustment lever slides inside the first slot. The second hook is provided with a second slot on the top. The second slot is provided with a limit slider. The bottom end of the angle adjustment lever slides inside the second slot.

[0007] The length adjusting rod has an external thread at its bottom end, which meshes with the internal thread inside the first through hole of the telescopic slider. A length adjusting knob is fixedly connected to the top end of the length adjusting rod.

[0008] The angle adjustment lever has a limiting groove at its bottom end, which passes through the second through hole and slides into the limiting slider of the second hook body. An angle adjustment knob is fixedly connected to the top of the angle adjustment lever.

[0009] The inner wall of the gripping rod has telescopic grooves on both sides of the telescopic slider, and the locking slider of the telescopic slider slides and locks in the telescopic grooves. The outer wall of the gripping rod is provided with anti-slip texture.

[0010] The length of the angle adjustment knob is not equal to the length adjustment knob.

[0011] This utility model has at least the following beneficial effects:

[0012] In use, this invention features two hooks at the bottom of the telescopic slider. These hooks rotate synchronously via a gear meshing structure and are driven by an angle adjustment rod. The internal thread inside the first through hole of the telescopic slider meshes with the external thread at the bottom of the length adjustment rod. By holding the lever with one hand and rotating the corresponding knob with the thumb and forefinger, the doctor can perform cutting or suturing operations without an assistant. The other hand can independently adjust the traction, hook extension, and angle, enhancing the doctor's independent operating ability and reducing reliance on assistants. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a partial cross-sectional schematic diagram of the present invention;

[0015] Figure 3 This is an exploded cross-sectional view of the present invention.

[0016] Figure 4 This is an exploded view of the telescopic slider of this utility model;

[0017] In the diagram: 1. Grip bar; 11. Telescopic slide groove; 12. Anti-slip texture; 2. Telescopic slider; 21. Telescopic slider; 22. First through hole; 221. Internal thread; 23. Second through hole; 24. Snap ring; 3. First hook body; 31. Snap groove; 32. Gear; 33. First slot; 4. Second hook body; 41. Second slot; 42. Limiting slider; 5. Angle adjustment lever; 51. Limiting slide groove; 52. Angle adjustment knob; 6. Length adjustment lever; 61. External thread; 62. Length adjustment knob. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Example 1

[0020] Please see Figures 1 to 4 This utility model provides a technical solution: a novel strabismus surgical hook, including a gripping rod 1. The outer wall of the gripping rod 1 is provided with anti-slip texture 12 to improve the doctor's gripping comfort and reduce the possibility of hand slippage during surgery. A telescopic slider 2 is slidably connected inside the gripping rod 1. A first hook body 3 and a second hook body 4 are rotatably connected to the bottom of the telescopic slider 2. The telescopic slider 2 can move up and down inside the gripping rod 1, driving the extension and retraction of the first hook body 3 and the second hook body 4. A second through hole 23 passes through an angle adjustment rotating rod 5 and is slidably connected to the second hook body 4. A first through hole 22 passes through and engages with a length adjustment rotating rod 6.

[0021] The bottom of the telescopic slider 2 is rotatably connected to a first hook 3 and a second hook 4. Snap-fit ​​sliders 21 are fixedly connected to both sides of the telescopic slider 2. Telescopic grooves 11 are formed on the inner wall of the gripping rod 1 on both sides of the telescopic slider 2. The snap-fit ​​sliders 21 of the telescopic slider 2 slide and snap into the telescopic grooves 11, allowing the telescopic slider 2 to slide up and down on the inner wall of the gripping rod 1, thus causing the first hook 3 and the second hook 4 to extend and retract. An internal thread 221 is formed inside the first through hole 22, and an external thread 61 is provided at the bottom of the length adjustment rod 6. The length adjustment lever 6 is fixedly connected to the top of the length adjustment knob 62, which engages with the internal thread 221 inside the first through hole 22 of the telescopic slider 2. When it is needed to adjust the length, hold the handle with one hand and use the thumb and forefinger to rotate the length adjustment knob 62, so that the length adjustment lever 6 rotates. The external thread 61 at the bottom engages with the internal thread inside the first through hole 22 of the telescopic slider 2, thereby driving the telescopic slider 2 to slide inside the handle 1, so as to achieve the purpose of synchronously adjusting the first hook 3 and the second hook 4.

[0022] A snap-fit ​​ring 24 is fixedly connected to the bottom of the first through hole 22 and the second through hole 23. Snap-fit ​​grooves 31 are provided on the outer top of both the first hook body 3 and the second hook body 4, respectively, and are rotatably snapped into the snap-fit ​​rings at the bottom of the first through hole 22 and the second through hole 23. This allows the first hook body 3 and the second hook body 4 to rotate at the bottom of the telescopic slider 2. A first slot 33 is provided on the top of the first hook body 3, and the bottom end of the length adjusting rod 6 slides inside the first slot 33. A second slot 41 is provided on the top of the second hook body 4, and a limiting slider 42 is provided inside the second slot 41. The bottom end of the angle adjusting rod 5 slides inside the second slot 41, and a limiting groove 51 is provided at the bottom end of the angle adjusting rod 5. 51 passes through the second through hole 23 and slides into the limiting slider 42 of the second hook body 4. An angle adjustment knob 52 is fixedly connected to the top of the angle adjustment lever 5. When it is needed to adjust the angle between the hook bodies, hold the lever with one hand and use the thumb and forefinger to rotate the angle adjustment knob 52 to make the angle adjustment lever 5 rotate. The limiting slide 51 engages with the limiting slider, thereby making the second hook body 4 rotate. Gears 32 are fixedly connected to the middle of the first hook body 3 and the second hook body 4. The gears 32 of the first hook body 3 and the second hook body 4 mesh, thereby enabling the two hook bodies to complete the angle adjustment and ensuring that the two hook bodies move synchronously to prevent uncoordinated operation of the hook bodies and reduce operation errors.

[0023] Example 2

[0024] Please see Figures 1 to 3 In this second embodiment, the other structures remain unchanged. The difference from the first embodiment is that the length of the angle adjustment knob 52 is not equal to the length of the length adjustment knob 62, which ensures that doctors can quickly identify the difference during operation and avoid incorrect adjustments under stress.

[0025] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A novel strabismus surgical hook, comprising a gripping rod (1), characterized in that: The gripping rod (1) is slidably connected to a telescopic slider (2). The telescopic slider (2) has a first through hole (22) and a second through hole (23) on its surface. The bottom of the first through hole (22) is rotatably connected to a first hook body (3), and the bottom of the second through hole (23) is rotatably connected to a second hook body (4). The first hook body (3) and the second hook body (4) are both fixedly connected to a gear (32) in the middle. The gears (32) of the first hook body (3) and the second hook body (4) mesh with each other. An angle adjustment rod (5) passes through the second through hole (23) and is slidably connected to the second hook body (4). A length adjustment rod (6) passes through and meshes with the first through hole (22).

2. The novel strabismus surgical hook according to claim 1, characterized in that: The telescopic slider (2) is fixedly connected to the two sides with snap-fit ​​sliders (21), the inner side of the first through hole (22) is provided with an internal thread (221), and the bottom of the first through hole (22) and the second through hole (23) are fixedly connected with snap-fit ​​rings (24).

3. The novel strabismus surgical hook according to claim 2, characterized in that: Both the first hook body (3) and the second hook body (4) have snap-fit ​​grooves (31) on their top outer sides. The first hook body (3) has a first slot (33) on its top. The bottom end of the length adjusting rod (6) slides inside the first slot (33). The second hook body (4) has a second slot (41) on its top. The second slot (41) has a limiting slider (42) inside it. The bottom end of the angle adjusting rod (5) slides inside the second slot (41).

4. The novel strabismus surgical hook according to claim 3, characterized in that: The length adjusting lever (6) has an external thread (61) at its bottom end. The external thread (61) meshes with the internal thread (221) inside the first through hole (22) of the telescopic slider (2). The length adjusting lever (6) has a length adjusting knob (62) fixedly connected to its top end.

5. A novel strabismus surgical hook according to claim 4, characterized in that: The bottom end of the angle adjusting rod (5) is provided with a limiting groove (51). The limiting groove (51) passes through the second through hole (23) and slides and engages with the limiting slider (42) of the second hook body (4). The top end of the angle adjusting rod (5) is fixedly connected with an angle adjusting knob (52).

6. A novel strabismus surgical hook according to claim 2, characterized in that: The inner wall of the gripping rod (1) has telescopic grooves (11) on both sides of the telescopic slider (2). The locking slider (21) of the telescopic slider (2) slides and locks in the telescopic grooves (11). The outer wall of the gripping rod (1) is provided with anti-slip textures (12).

7. A novel strabismus surgical hook according to claim 5, characterized in that: The length of the angle adjustment knob (52) is not equal to the length of the length adjustment knob (62).

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