Cataract lenticular nucleus enucleation tool

Abstract

The utility model discloses a cataract lenticular nucleus enucleation tool, which relates to the technical field of cataract surgery, and comprises a wide box, a sliding tube is arranged above the wide box, a pressing rod is arranged in the sliding tube in a sliding manner, the pressing rod is fixedly connected with a pressing plate, a moving groove I is formed in the pressing rod, a spring II is arranged in the moving groove I, and the spring II is connected with a clamping block. Clamping grooves are formed in the two sides of the inner wall of the sliding pipe, the clamping grooves are matched with the clamping blocks, the clamping grooves are communicated with the second moving groove, a sliding block is installed in the second moving groove in a sliding mode, the sliding block is connected with the inner wall of the second moving groove through a third spring, a pushing block is fixedly installed on one side of the sliding block, and the pushing block corresponds to and is matched with the clamping grooves. The position of the pressing rod is conveniently adjusted by pressing the pressing rod or the sliding block, then the elastic balloon is extruded or reset by combining the first spring and the pressing plate, additional complex rotating and moving operation is not needed, and the operation efficiency is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of cataract surgery technology, specifically to a tool for removing the lens nucleus in cataract surgery. Background Technology

[0002] Cataracts are caused by various factors such as aging, genetics, local nutritional deficiencies, immune and metabolic abnormalities, trauma, poisoning, and radiation, which lead to metabolic disorders of the lens, causing denaturation of lens proteins and clouding. When a person has cataracts, light is blocked by the cloudy lens and cannot be projected onto the retina, resulting in blurred vision. Moreover, the incidence increases with age.

[0003] Chinese utility model patent application number 202322989539.1 provides a lens nucleus delivery device for cataract surgery. By restricting the movement and rotation trajectory of the rotating column, the squeezing force of the elastic balloon can be controlled. This allows the rotating column to continue pressing the elastic balloon after the pressure on the rotating column is released, until it moves to a suitable position for absorbing the cataract lens nucleus. Then, rotating the rotating column again will cause the elastic balloon to reset under the elastic action of the first spring, thereby clamping the cataract lens nucleus.

[0004] However, during the use of the above-mentioned equipment, it was found that the operator needs to constantly adjust the position of the rotating column to keep the elastic balloon in a compressed or reset state by rotating and moving it. The operation process is relatively cumbersome and the operation efficiency is low in a tense surgical environment. Utility Model Content

[0005] To address the shortcomings of existing technologies, this invention provides a cataract lens nucleus enucleation tool, which solves the problem in the background technology that the operation of rotating and moving the elastic balloon to be in a compressed or repositioned state is relatively cumbersome and has low efficiency in a stressful surgical environment.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a cataract lens nucleus removal tool, comprising a wide box, the wide box being fixedly connected to a vertical tube, an elastic balloon being connected to the top of the vertical tube, a suction cup being fixedly connected to the bottom of the vertical tube, a pressure plate being provided above the elastic balloon, the pressure plate being connected to the upper inner wall of the wide box via a spring, a sliding tube being provided above the wide box, a pressure rod being slidably disposed in the sliding tube, and the pressure rod being fixedly connected to the pressure plate;

[0007] The pressure rod has a movable groove 1, in which a spring 2 is installed. The spring 2 is connected to a locking block. The inner walls of the sliding tube have locking grooves on both sides, which are adapted to the locking blocks and are connected to the movable groove 2. A slider is slidably installed in the movable groove 2. The slider is connected to the inner wall of the movable groove 2 via a spring 3. A push block is fixedly installed on one side of the slider, which corresponds to and is adapted to the locking groove.

[0008] Preferably, a limiting plate is fixedly installed on the vertical tube, and the vertical tube is slidably connected to the moving frame through a damping sleeve, the damping sleeve being positioned above the limiting plate.

[0009] Preferably, a bidirectional threaded rod is installed inside the movable frame, and a slide bar is arranged parallel to one side of the bidirectional threaded rod. The slide bar is fixedly installed inside the movable frame, and a movable block is screwed to both ends of the bidirectional threaded rod. The movable block is slidably arranged on the slide bar.

[0010] Preferably, a baffle is fixedly connected to the bottom of the movable block, the baffle is L-shaped, and the baffles at the bottom of the movable blocks at both ends of the bidirectional threaded rod are symmetrically arranged.

[0011] Preferably, the bidirectional threaded rod is fixedly connected to the rotating handle, and a damping sleeve II is installed on the bidirectional threaded rod. The bidirectional threaded rod is rotatably connected to the moving frame through the damping sleeve II.

[0012] This invention provides a tool for cataract lens enucleation. It has the following beneficial effects:

[0013] (1) This utility model allows for convenient adjustment of the position of the pressure rod by pressing the pressure rod or slider, and then, in combination with the spring and the pressure plate, the elastic balloon is squeezed or reset without the need for additional complex rotation and movement operations, which greatly improves the operating efficiency.

[0014] (2) This utility model drives the bidirectional threaded rod to rotate, so that the baffle can block the bottom of the suction cup, thereby preventing the adsorbed cataract lens nucleus from falling onto the patient's eye during the movement. At the same time, due to the rotation of the bidirectional threaded rod, the movement of the baffle can be controlled precisely and conveniently.

[0015] This solves the problem that the operation of keeping the elastic balloon in a compressed or repositioned state by rotating and moving it is relatively cumbersome and inefficient in a stressful surgical environment. Attached Figure Description

[0016] Figure 1 This is a diagram showing the overall structure of the present utility model;

[0017] Figure 2 This utility model Figure 1 Internal structure diagram of the medium-width box;

[0018] Figure 3 This utility model Figure 2 An enlarged view of section A;

[0019] Figure 4 This utility model Figure 1 A diagram showing the internal structure of the mobile frame.

[0020] In the diagram, 1. Wide box; 11. Spring 1; 12. Pressure plate; 13. Elastic balloon; 14. Pressure rod; 141. Moving groove 1; 142. Spring 2; 143. Locking block; 15. Sliding tube; 151. Moving groove 2; 152. Locking groove; 153. Slider; 154. Push block; 155. Spring 3; 2. Vertical tube; 21. Limiting plate; 3. Suction cup; 4. Moving frame; 41. Damping sleeve 1; 42. Sliding rod; 43. Two-way threaded rod; 44. Moving block; 45. Baffle; 46. Rotating handle; 47. Damping sleeve 2. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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.

[0022] Example 1:

[0023] Please see Figures 1-4 A cataract lens nucleus removal tool includes a wide box 1, which is fixedly connected to a vertical tube 2. An elastic balloon 13 is connected to the top of the vertical tube 2, and a suction cup 3 is fixedly connected to the bottom of the vertical tube 2. A pressure plate 12 is provided above the elastic balloon 13. The pressure plate 12 is connected to the upper inner wall of the wide box 1 through a spring 11. A sliding tube 15 is provided above the wide box 1. A pressure rod 14 is slidably arranged in the sliding tube 15 and is fixedly connected to the pressure plate 12.

[0024] The pressure rod 14 has a first moving groove 141, in which a second spring 142 is installed. The second spring 142 is connected to the locking block 143. The inner wall of the sliding tube 15 has locking grooves 152 on both sides. The locking grooves 152 are adapted to the locking blocks 143 and are connected to the second moving groove 151. A slider 153 is slidably installed in the second moving groove 151. The slider 153 is connected to the inner wall of the second moving groove 151 through a third spring 155. A push block 154 is fixedly installed on one side of the slider 153. The push block 154 corresponds to and is adapted to the locking groove 152.

[0025] Specifically, when the elastic balloon 13 needs to be compressed, the doctor presses down on the pressure rod 14. Since the pressure rod 14 is fixedly connected to the pressure plate 12, the downward movement of the pressure rod 14 will cause the pressure plate 12 to move downward. During the downward movement of the pressure plate 12, the spring 11 will be stretched, and pressure will be applied to the elastic balloon 13, causing it to be compressed. During the downward movement of the pressure rod 14, the locking block 143 on the pressure rod 14 will be squeezed by the inner wall of the sliding tube 15, causing the locking block 143 to retract into the moving groove 141, compressing the spring 142. When the locking block 143 moves to the appropriate position in the groove 152, under the elastic force of the spring 142, the locking block 143 will pop out and lock into the groove 152, thereby fixing the position of the pressure rod 14 and keeping the elastic balloon 13 in a compressed state.

[0026] When the elastic balloon 13 needs to be reset, the doctor pushes the slider 153, which slides in the second moving groove 151 and compresses the third spring 155. The push block 154 on one side of the slider 153 will enter the slot 152 as the slider 153 moves, pushing the slot block 143 out of the slot 152 and back into the first moving groove 141. At this time, the stretched spring 11 will release its elastic force, pushing the pressure plate 12 to move upward. The pressure plate 12 drives the pressure rod 14 to move upward, and the elastic balloon 13 is reset accordingly.

[0027] The surgeon only needs to perform two relatively simple actions—pressing the lever 14 and pushing the slider 153—to compress and reposition the elastic balloon 13. This compression and repositioning of the elastic balloon 13 effectively adheres the cataract lens nucleus to the suction cup 3. Compared to more complex procedures requiring multiple steps to switch positions, this method is more intuitive and convenient. In the stressful surgical environment, this simple operation reduces the surgeon's workload and fatigue, allowing them to focus more on the critical aspects of the surgery.

[0028] Example 2:

[0029] To prevent the adsorbed cataract lens nucleus from falling into the patient's eye, please refer to [link / reference needed]. Figures 1-4 Based on embodiment 1, a limiting plate 21 is fixedly installed on the vertical pipe 2, and the vertical pipe 2 is slidably connected to the movable frame 4 through a damping sleeve 41. The damping sleeve 41 is set above the limiting plate 21.

[0030] The movable frame 4 is equipped with a bidirectional threaded rod 43. A slide rod 42 is arranged parallel to one side of the bidirectional threaded rod 43. The slide rod 42 is fixedly installed inside the movable frame 4. A movable block 44 is screwed to both ends of the bidirectional threaded rod 43. The movable block 44 is slidably arranged on the slide rod 42.

[0031] A baffle 45 is fixedly connected to the bottom of the movable block 44. The baffle 45 is L-shaped, and the baffles 45 at the bottom of the movable block 44 at both ends of the bidirectional threaded rod 43 are symmetrically arranged.

[0032] The bidirectional threaded rod 43 is fixedly connected to the handle 46. A damping sleeve 47 is installed on the bidirectional threaded rod 43, and the bidirectional threaded rod 43 is rotatably connected to the moving frame 4 through the damping sleeve 47.

[0033] Specifically, the bidirectional threaded rod 43 is rotated by rotating the handle 46. Since the threads at both ends of the bidirectional threaded rod 43 are in opposite directions and both ends are helically connected to moving blocks 44, and the moving blocks 44 are slidably mounted on the slide rod 42, when the bidirectional threaded rod 43 rotates, the two moving blocks 44 will move towards or away from each other along the slide rod 42.

[0034] The L-shaped baffle 45, which is fixedly connected to the bottom of the moving block 44, moves with the moving block 44. When the cataract lens nucleus is attracted by the suction cup 3, the two baffles 45 are controlled to move closer to each other so that the bottom of the baffles 45 can fit together and block the bottom of the suction cup 3, thereby preventing the lens nucleus from falling from the suction cup 3 into the patient's eye. When the blocking is not needed, the two baffles 45 are controlled to move away from each other so that the baffles 45 are away from the suction range of the suction cup 3. At the same time, the moving frame 4 is controlled to move upward along the vertical tube 2, so that the bottom of the baffles 45 moves above the suction cup 3.

[0035] Damping sleeve 41 is installed between the vertical tube 2 and the movable frame 4, and is located above the limiting plate 21. Its main function is to increase the friction of the movable frame 4 sliding on the vertical tube 2, which can prevent the movable frame 4 from sliding accidentally, and thus prevent the movable frame 4 from moving unnecessarily due to slight vibration or unexpected external force. Damping sleeve 47 is installed at the connection between the bidirectional threaded rod 43 and the movable frame 4, and is used to control the rotation of the bidirectional threaded rod 43, improve the stability of the rotation of the bidirectional threaded rod 43, and also prevent the bidirectional threaded rod 43 from rotating unnecessarily due to slight vibration or unexpected external force. The limiting plate 21 is used to block the movable frame 4, so as to prevent the movable frame 4 from being too low, which would result in the distance between the baffle 45 and the suction cup 3 being relatively far when the baffle 45 is blocking.

[0036] Working principle: When the device is in use, the doctor presses down on the pressure rod 14, which moves the pressure plate 12 fixed to it downward. The pressure plate 12 stretches the spring 11 and squeezes the elastic balloon 13. When the pressure rod 14 moves down, its locking block 143 is squeezed and contracted into the moving groove 141 by the inner wall of the sliding tube 15 and compresses the spring 142. When the locking block 143 moves to the appropriate position of the groove 152, the spring 142 springs open and the locking block 143 is locked into the groove 152, fixing the position of the pressure rod 14 and keeping the elastic balloon 13 in a compressed state. After the suction cup 3 is aligned with the cataract lens nucleus, the slider 153 is pushed to slide in the moving groove 151 to compress the spring 155. The push block 154 on one side of the slider 153 enters the groove 152 and pushes the locking block 143 out of the groove 152 and back into the moving groove 141. The stretched spring 11 releases its elastic force and pushes the pressure plate 12 to move up. The pressure plate 12 drives the pressure rod 14 to move up, so that the elastic balloon 13 is reset, thereby completing the adsorption of the cataract lens nucleus.

[0037] Move the movable frame 4 so that the bottom of the baffle 45 is below the suction cup 3. Rotate the handle 46 to drive the bidirectional threaded rod 43 to rotate. When the bidirectional threaded rod 43 rotates, the two moving blocks 44 move towards each other along the slide rod 42 until the bottoms are in contact, blocking the bottom of the suction cup 3 to prevent the lens nucleus from falling out.

[0038] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0039] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A cataract lens nucleus removal tool, comprising a wide box (1), the wide box (1) being fixedly connected to a vertical tube (2), an elastic balloon (13) being connected to the top of the vertical tube (2), a suction cup (3) being fixedly connected to the bottom of the vertical tube (2), a pressure plate (12) being disposed above the elastic balloon (13), the pressure plate (12) being connected to the upper part of the inner wall of the wide box (1) via a spring (11), characterized in that: A sliding tube (15) is provided above the wide box (1), and a pressure rod (14) is slidably provided in the sliding tube (15). The pressure rod (14) is fixedly connected to the pressure plate (12). The pressure rod (14) has a moving groove (141) and a spring (142) is installed in the moving groove (141). The spring (142) is connected to the locking block (143). The inner wall of the sliding tube (15) has a locking groove (152) on both sides. The locking groove (152) is adapted to the locking block (143) and is connected to the moving groove (151). A slider (153) is slidably installed in the moving groove (151). The slider (153) is connected to the inner wall of the moving groove (151) through a spring (155). A push block (154) is fixedly installed on one side of the slider (153). The push block (154) corresponds to and is adapted to the locking groove (152).

2. The cataract lens enucleation tool according to claim 1, characterized in that: A limiting plate (21) is fixedly installed on the vertical pipe (2). The vertical pipe (2) is slidably connected to the moving frame (4) through a damping sleeve (41). The damping sleeve (41) is located above the limiting plate (21).

3. The cataract lens enucleation tool according to claim 2, characterized in that: The movable frame (4) is equipped with a bidirectional threaded rod (43) inside. A slide rod (42) is arranged parallel to one side of the bidirectional threaded rod (43). The slide rod (42) is fixedly installed inside the movable frame (4). A movable block (44) is screwed to both ends of the bidirectional threaded rod (43). The movable block (44) is slidably arranged on the slide rod (42).

4. The cataract lens enucleation tool according to claim 3, characterized in that: A baffle (45) is fixedly connected to the bottom of the movable block (44). The baffle (45) is L-shaped, and the baffles (45) at the bottom of the movable blocks (44) at both ends of the bidirectional threaded rod (43) are symmetrically arranged.

5. The cataract lens enucleation tool according to claim 4, characterized in that: The bidirectional threaded rod (43) is fixedly connected to the handle (46), and a damping sleeve (47) is installed on the bidirectional threaded rod (43). The bidirectional threaded rod (43) is rotatably connected to the moving frame (4) through the damping sleeve (47).

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