Adjustable capsule decompression nail for cataract in expansion period

Abstract

The utility model discloses an adjustable capsular decompression nail for cataract in the expansion period, and relates to the technical field of capsular decompression nails, the adjustable capsular decompression nail comprises a grab handle and a nail needle rod, the grab handle is connected with the nail needle rod through a connecting piece, a moving groove is arranged in the grab handle, a rotating piece is fixedly arranged at the bottom of the grab handle, and the connecting piece is rotatably installed on the rotating piece. The connecting piece comprises a fixed block, a limiting groove is formed in the top of the fixed block, the fixed block is arranged in the rotating piece, a sliding way is arranged on the inner wall in the moving groove, a moving block is slidably installed in the sliding way, a limiting block is fixedly connected to the bottom of the moving block, the limiting block is matched with the limiting groove, and a push plate is fixedly connected to one side of the moving block. The limiting block is controlled by the spring to enter different limiting grooves, the angle of the connecting piece and the angle of the nail needle rod are adjusted, the spring is good in anti-aging performance, low in abrasion and long in service life, meanwhile, the production cost of the spring is low, and the replacement cost is low.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of capsule membrane pressure reduction nail, specifically to an adjustable capsule membrane pressure reduction nail for cataract in the swelling period. BACKGROUND

[0002] Surgical instruments refer to medical instruments used in clinical surgery. In addition to conventional surgical instruments, there are some special instruments for orthopedics, urology, gynecology and obstetrics, burn department, plastic surgery, brain surgery, cardiothoracic surgery, general surgery, etc. During the cataract surgery in the swelling period, the pressure reduction nail is needed to remove and decompress the liquefied cortex in the capsule bag, so an adjustable capsule membrane pressure reduction nail for cataract in the swelling period is needed.

[0003] The Chinese utility model patent with patent application number 202420074247.7 provides an adjustable capsule membrane pressure reduction nail for cataract in the swelling period. When the adjustable capsule membrane pressure reduction nail for cataract in the swelling period is used, the doctor's thumb is pressed on the surface of the non-slip pad, and the other four fingers are buckled in the finger sleeve, so that the capsule membrane pressure reduction nail is better held, and the non-slip strip on the surface of the sleeve further enhances the holding stability of the sleeve. Through the cooperation between the connecting block, the threaded column and the threaded sleeve, the nail needle rod can be replaced individually when it is damaged, avoiding resource waste.

[0004] However, during the use of the above-mentioned device, it is found that the device adjusts the angle of the nail needle rod through the damping shaft. However, with the increase of the number of uses and the passage of time, the damping material in the damping shaft is prone to problems such as wear and tear, aging, etc., leading to unstable damping force, which makes it difficult to effectively fix the angle of the nail needle rod, affecting the stability of the surgical operation. When the damping shaft needs to be replaced due to serious wear and tear, the manufacturing precision of the damping shaft is high, and there are many parts, so the cost of replacement is high. UTILITY MODEL CONTENTS

[0005] In view of the deficiencies of the prior art, the utility model provides an adjustable capsule membrane pressure reduction nail for cataract in the swelling period, which solves the problem of unstable damping force caused by wear and tear, aging, etc. of the damping material in the damping shaft, which makes it difficult to effectively fix the angle of the nail needle rod. At the same time, when the damping shaft needs to be replaced due to serious wear and tear, the manufacturing precision of the damping shaft is high, and there are many parts, so the cost of replacement is high.

[0006] In order to achieve the above object, the utility model discloses a kind of adjustable capsular membrane decompression nails of swelling period cataract, including handle and nail needle rod, the handle is provided with holding portion, the holding portion is composed of antiskid pad, antiskid strip and finger cot, the handle is connected by connecting piece, the handle is provided with moving groove, the bottom of the handle is fixedly provided with rotating member, the moving groove is communicated with rotating member, the connecting piece is rotatably installed on rotating member, the connecting piece includes fixed block, the top of the fixed block is provided with limit groove, the fixed block is arranged in rotating member, the inner wall of the moving groove is provided with slide, the slide is slidably installed with moving block, the bottom of the moving block is fixedly connected with limit block, the limit block is matched with limit groove, one side of the moving block is fixedly connected with push plate, the push plate is arranged on the outside of moving groove.

[0007] Preferably, the limit groove is provided with multiple groups, and the multiple limit grooves are arranged around the top center circumference of the fixed block, the fixed block is fixed in the rotating groove, the rotating groove is provided in the top of the connecting piece, the rotating groove is matched with the rotating member, and the connecting piece is rotatably connected with the handle through the matching of the rotating groove and the rotating member.

[0008] Preferably, the moving block is connected with a spring, and the moving block is connected with the inner wall top end of the moving groove through the spring.

[0009] Preferably, the bottom of the connecting piece is provided with a connecting groove, the inner wall of the connecting groove is provided with a spiral groove, and the outer side of the connecting piece is provided with anti-skid lines.

[0010] Preferably, the top of the nail needle rod is provided with a spiral thread, and the nail needle rod is screw-connected with the connecting piece through the matching of the spiral thread and the spiral groove.

[0011] The utility model provides a kind of adjustable capsular membrane decompression nails of swelling period cataract. With the following beneficial effects:

[0012] (1), the utility model discloses that limit block is entered into different limit grooves by spring control, the angle of connecting piece and nail needle rod is adjusted, the anti-aging performance of spring is better, wear is lower, service life is longer, and its production cost is lower, so that the cost of replacement is lower.

[0013] (2), in the utility model, nail needle rod and connecting piece are screw-connected by the matching of spiral thread and spiral groove, when nail needle rod needs to be replaced, it can be quickly removed.

[0014] Thus, the problems that the damping material in the damping rotating shaft is prone to wear and aging, and thus the damping force is unstable, and the angle of the nail rod is difficult to be effectively fixed, and when the damping rotating shaft needs to be replaced due to serious wear and aging, the manufacturing precision of the damping rotating shaft is high, and the damping rotating shaft has many components, and the replacement cost is high, are solved. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a whole structure display drawing of the utility model;

[0016] Figure 2 It is a whole structure display drawing of the utility model Figure 1 It is a structure display drawing of the nail rod in the utility model;

[0017] Figure 3 It is an internal structure display drawing of the connecting piece in the utility model Figure 1 It is an internal structure display drawing of the connecting piece in the utility model

[0018] Figure 4 It is a structure display drawing of the handle in the utility model Figure 1 It is a structure display drawing of the handle in the utility model

[0019] Figure 5 It is an enlarged schematic view of the A part in the utility model Figure 4

[0020] In the drawing, 1, handle; 11, moving groove; 12, rotating piece; 13, holding part; 2, nail rod; 21, helical thread; 3, connecting piece; 31, connecting groove; 32, rotating groove; 33, fixed block; 34, limiting groove; 35, anti-skid line; 4, push plate; 41, moving block; 42, limiting block; 43, slide; 44, spring. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0022] Embodiment 1:

[0023] Please refer to Figures 1-5 ​The utility model relates to an adjustable capsule membrane decompression nail of cataract in swelling period, including handle 1 and nail needle stem 2, be provided with holding portion 13 on handle 1, holding portion 13 is composed of antiskid pad, antiskid strip and finger cot, handle 1 is connected with nail needle stem 2 through connecting piece 3, be provided with moving groove 11 in handle 1, the bottom of handle 1 is fixedly provided with rotating part 12, moving groove 11 is communicated with rotating part 12, connecting piece 3 is rotatably installed on rotating part 12, connecting piece 3 includes fixed block 33, the top of fixed block 33 is provided with limiting groove 34, fixed block 33 sets up in rotating part 12, be provided with slide 43 on the inner wall in moving groove 11, slide 43 is slidably installed with moving block 41, the bottom of moving block 41 is fixedly connected with limiting block 42, limiting block 42 is matched with limiting groove 34, one side of moving block 41 is fixedly connected with push plate 4, and push plate 4 sets up at the outside of moving groove 11,

[0024] Limiting groove 34 is provided with multiple groups, and the multiple groups of limiting groove 34 are arrayed around the top center circumference of fixed block 33, fixed block 33 is fixed in rotating groove 32, rotating groove 32 is set up at the top of connecting piece 3, rotating groove 32 is matched with rotating part 12, and connecting piece 3 is rotatably connected with handle 1 by the matching of rotating groove 32 and rotating part 12;

[0025] Spring 44 is connected to moving block 41, and moving block 41 is connected to the top end of the inner wall of moving groove 11 by spring 44.

[0026] Specifically, when the angle of connecting piece 3 needs to be adjusted, push plate 4 is pushed, and push plate 4 drives moving block 41 to slide along slide 43 in moving groove 11. Limiting block 42 at the bottom of moving block 41 moves together with moving block 41, and at this time, limiting block 42 is separated from the current limiting groove 34. Since connecting piece 3 is rotatably connected with the rotating part 12 at the bottom of handle 1 by the matching of rotating groove 32, connecting piece 3 can be rotated to the desired angle after limiting block 42 is separated from limiting groove 34. In the rotating process of connecting piece 3, fixed block 33 also rotates, and the multiple groups of limiting groove 34 on the top circumference of fixed block 33 also rotate. When connecting piece 3 is rotated to the appropriate angle, push plate 4 is released, moving block 41 moves to the original position under the elastic force of spring 44, and limiting block 42 is inserted into the limiting groove 34 at the new position, so as to fix the angle of connecting piece 3.

[0027] Since the multiple groups of limiting groove 34 are arrayed around the top center circumference of fixed block 33, the angle adjustment of connecting piece 3 can have multiple precise gear selections.

[0028] The fixing force provided by the spring 44 is mainly based on the elastic force generated by its elastic deformation, and the fixing force of the damping shaft depends on the friction or viscous force of the damping material. With the increase of the number of uses and the passage of time, the damping material is prone to wear and aging, resulting in unstable damping force, which in turn affects the reliability of the angle fixation of the connecting piece 3. While the spring 44 can continuously and stably provide a fixing force within the normal working range, ensuring the stability of the angle of the connecting piece 3, the service life of the spring 44 is longer than that of the damping shaft. To some extent, it can reduce the replacement cost of the handle 1, and at the same time, the cost of the spring 44 itself is relatively low. The damping shaft has a complex structure and special damping material, so the manufacturing cost is high. Therefore, the handle 1 using the spring 44 has a lower replacement cost than the handle 1 using the damping shaft.

[0029] Embodiment 2:

[0030] To achieve the convenient replacement of the needle rod 2, please refer to Figures 1-5 On the basis of embodiment 1, a connecting groove 31 is provided at the bottom of the connecting piece 3, and a helical groove is provided on the inner wall of the connecting groove 31. A non-slip pattern 35 is provided on the outer side of the connecting piece 3.

[0031] The top of the needle rod 2 is provided with a helical pattern 21, and the needle rod 2 is connected with the connecting piece 3 through the helical pattern 21 and the helical groove.

[0032] Specifically, by holding the needle rod 2 and rotating it in the opposite direction, the helical connection between the helical pattern 21 and the helical groove is gradually loosened. Due to this helical connection, the needle rod 2 can gradually separate from the connecting groove 31 along the path of the helical groove, completing the disassembly. It can be quickly replaced when the needle rod 2 is damaged, without the need for complex tools or tedious steps, saving surgery time. At the same time, it can realize the separate replacement of the needle rod 2, avoid resource waste, and utilize the helical connection between the connecting piece 3 and the needle rod 2 to enable the connecting piece 3 to adjust the angle of the needle rod 2 when adjusting the angle, so that the doctor can adjust the needle rod 2 to the most suitable angle according to the specific needs of the operation, such as the eye structure of different patients, the specific position and state of the cataract capsule, etc., to improve the precision of the operation. The non-slip pattern 35 is provided on the outer side of the connecting piece 3, which can increase the friction between the hand and the connecting piece 3 when disassembling or assembling the needle rod 2. Medical staff can hold the connecting piece 3 more stably, which facilitates the application of rotational force to disassemble or assemble the needle rod 2, making the operation more smooth.

[0033] Working principle: when the device is in use, the doctor holds the handle 1 and operates the handle part 13 composed of anti-skid pad, anti-skid strip and finger sleeve. If the angle of the needle rod 2 needs to be adjusted, push the push plate 4, drive the moving block 41 to slide along the slide 43 in the moving groove 11, make the limiting block 42 disengage from the current limiting groove 34, then rotate the connecting piece 3 to the desired angle, release the push plate 4, the moving block 41 resets under the elastic force of the spring 44, the limiting block 42 inserts into the new position of the limiting groove 34 to fix the angle, and then realize the synchronous rotation of the needle rod 2 to the appropriate angle, because of the circumferential array of multiple limiting grooves 34, the multi-gear precise angle adjustment can be realized, which is beneficial for the doctor to accurately operate according to the eye condition of the patient.

[0034] When the needle rod 2 needs to be replaced, such as damage, the medical staff holds the needle rod 2 and rotates it in reverse, because the top spiral thread 21 of the needle rod 2 is matched with the spiral groove in the inner wall of the connecting groove 31, the needle rod 2 is detached from the connecting groove 31 along the spiral groove path to complete the disassembly, and a new needle rod 2 is used for replacement.

[0035] The above shows and describes the basic principle and main features of the present application and the advantages of the present application. For those skilled in the art, it is obvious that the present application is not limited to the details of the above exemplary embodiments, and the present application can be realized in other specific forms without departing from the spirit or basic characteristics of the present application. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, the scope of the present application is defined by the appended claims rather than the above description, therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0036] In addition, it should be understood that although the present application is described in the form of embodiments, not every embodiment contains only one independent technical solution, and the description manner of the specification is only for the sake of clarity, those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be properly combined to form other embodiments that those skilled in the art can understand.

Claims

1. An adjustable capsular decompression nail for cataracts in the intumescent phase, comprising a handle (1) and a nail rod (2), wherein the handle (1) is provided with a gripping part (13), the gripping part (13) being composed of an anti-slip pad, an anti-slip strip, and a finger sleeve, characterized in that: The handle (1) is connected with the nail needle rod (2) through the connecting piece (3), the handle (1) is provided with a moving groove (11), the bottom of the handle (1) is fixedly provided with a rotating piece (12), the moving groove (11) is communicated with the rotating piece (12), the connecting piece (3) is rotatably installed on the rotating piece (12), the connecting piece (3) comprises a fixed block (33), the top of the fixed block (33) is provided with a limiting groove (34), the fixed block (33) is arranged in the rotating piece (12), a slide (43) is arranged on the inner wall of the moving groove (11), the slide (43) is slidably installed with a moving block (41), the bottom of the moving block (41) is fixedly connected with a limiting block (42), the limiting block (42) is matched with the limiting groove (34), one side of the moving block (41) is fixedly connected with a push plate (4), and the push plate (4) is arranged outside the moving groove (11).

2. The adjustable capsular tension ring for phakic intraocular lens according to claim 1, wherein: The limiting groove (34) is arranged in multiple groups, the multiple limiting grooves (34) are arranged around the top center circumference of the fixed block (33), the fixed block (33) is fixed in the rotating groove (32), the rotating groove (32) is arranged at the top of the connecting piece (3), the rotating groove (32) is matched with the rotating piece (12), and the connecting piece (3) is rotatably connected with the handle (1) through the matching of the rotating groove (32) and the rotating piece (12).

3. The adjustable capsular tension ring of claim 2, wherein: The moving block (41) is connected with a spring (44), and the moving block (41) is connected with the inner wall top end of the moving groove (11) through the spring (44).

4. The adjustable capsular tension ring of claim 1, wherein: The bottom of the connecting piece (3) is provided with a connecting groove (31), the inner wall of the connecting groove (31) is provided with a spiral groove, and the outer side of the connecting piece (3) is provided with anti-skid lines (35).

5. The adjustable capsular tension ring of claim 4, wherein: The top of the nail needle rod (2) is provided with a spiral thread (21), and the nail needle rod (2) is matched with the spiral groove through the spiral thread (21) to realize the spiral connection with the connecting piece (3).

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