Cylindrical titanium clamp safety drag hook
By improving the cylindrical shape design and linkage spring structure of the safety hook of the cylindrical titanium clamp, the installation difficulty and instability caused by the flat wings have been solved, achieving greater installation convenience and mechanical stability, extending service life, preventing accidental loosening, and ensuring surgical safety.
Patent Information
- Application Number
- CN202422731177.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-11
- Publication Date
- 2025-11-11
- Estimated Expiration
- 2034-11-11
AI Technical Summary
The flat wing design of the safety hook of existing cylindrical titanium clamps causes the center of gravity to deviate from the ideal position, affecting the balance and maneuverability of the tool. Furthermore, it is not robust enough when subjected to shearing forces, is difficult to install, and is prone to jamming.
It adopts a cylindrical safety hook design and provides greater load-bearing capacity and torque transmission through a linkage spring. Combined with the improved design of the universal pull wheel and cover plate hole, it ensures the stability and reliability of mechanical transmission and facilitates installation and disassembly.
It improves the ease of tool installation and stability, extends service life, prevents clamps from accidentally loosening, and ensures the accuracy and safety of surgical procedures.
Smart Images

Figure CN223529542U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of titanium clamp technology, and in particular to a cylindrical titanium clamp safety hook. Background Technology
[0002] Titanium clips are widely used tools in the medical field, especially in laparoscopic and endoscopic surgery. Made of pure titanium wire or titanium alloy wire, they are typically V-shaped and feature a rational structure, ease of use, and reliability. They are primarily used to clamp and ligate tissues, such as the cystic duct and cystic artery, as well as for hemostasis and marking lesion sites in endoscopic surgery. Cylindrical titanium clip safety hooks are precision medical instruments mainly used in abdominal surgery. These clips can be used to fix and traction tissues, helping surgeons gain better visibility and maneuvering space during surgery.
[0003] An existing cylindrical titanium clamp safety hook has most of its internal wings being flat. Flat wings may cause the center of gravity to deviate from the ideal position, affecting the tool's balance and maneuverability. The flat design may also be less robust than the circular design when subjected to shearing forces. Utility Model Content
[0004] To solve the above-mentioned technical problems, this utility model provides a cylindrical titanium clamp safety hook.
[0005] This utility model is achieved using the following technical solution: a cylindrical titanium clamp safety hook, comprising a fixed handle assembly, the fixed handle assembly including an upper cover plate, a lower cover plate, and a cover plate hole one; a movable handle pin is fixedly connected inside the upper cover plate, a handle assembly is inserted into the surface of the movable handle pin, a linkage spring is fixedly connected inside the upper cover plate, a transmission frame is snapped onto the surface of the linkage spring, a C-shaped buckle is inserted into the inside of the transmission frame, a transmission seat is snapped onto the surface of the linkage spring, a handle rear bracket piece is snapped onto the left end of the transmission seat, a reset torsion spring is inserted into the inside of the upper cover plate, a shift fork is inserted into the inside of the upper cover plate, an O-ring is inserted into the inside of the upper cover plate, an upper cover plate is opened inside the upper cover plate, an installation pin is fixedly connected inside the upper cover plate, a cover plate hole two is opened inside the lower cover plate, and an installation hole is opened inside the lower cover plate.
[0006] Through the above technical solutions, the linkage spring can provide greater load-bearing capacity and torque transmission, making it suitable for mechanical systems that require higher load-bearing capacity and torque. It can more effectively compensate for radial, axial, and angular displacements between shafts, ensuring the stability and reliability of mechanical transmission.
[0007] As a further improvement to the above solution, a universal pull wheel is inserted into the front of the upper cover plate, and a universal pull wheel is inserted into the front of the lower cover plate.
[0008] As a further improvement to the above solution, a safety hook is inserted into the inside of the first hole of the cover plate, and a safety hook is inserted into the inside of the second hole of the cover plate.
[0009] Through the above technical solution, cover plate hole one and cover plate hole two facilitate the convenient installation and removal of the internal safety hook, and the wings of the safety hook are set in a cylindrical shape, which has high flexibility and stability.
[0010] As a further improvement to the above solution, the safety hook is inserted into the inside of the upper cover plate and the safety hook is inserted into the inside of the lower cover plate.
[0011] As a further improvement to the above scheme, the number of linkage springs is set to two, and the two linkage springs are symmetrically distributed front and back with the transmission frame as the center.
[0012] As a further improvement to the above solution, the transmission seat is snapped into the inside of the lower cover plate, and the handle rear bracket is snapped into the inside of the lower cover plate.
[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0014] This utility model, by setting a flat wing that is inserted into the hole of the lower cover plate, causes the safety hook to be skewed because its shape does not fit the round hole of the cover plate. This makes it difficult to align the upper cover plate with the hole when installing it, increasing the installation difficulty. In extreme cases, it may misalign with the hole of the upper cover plate, causing it to jam. After the safety hook is assembled, the wing must rotate inside the hole, otherwise it will fail. The patented version changes the wing to a cylindrical shape, which can perfectly fit the hole of the cover plate and is easy to install. Since it is formed in one piece by powder metallurgy, it will not increase the manufacturing cost compared to the conventional version.
[0015] This invention facilitates easy installation and disassembly of the device by designing the overall structure, allowing staff to replace, repair, and disassemble easily worn internal components, thus increasing the overall lifespan of the device. Furthermore, the inclusion of a safety locking function prevents the clamps from accidentally loosening, thereby avoiding injury to the patient or affecting the accuracy of the surgical procedure. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0017] Figure 2 This is a schematic diagram of the disassembly structure of the lower cover plate of this utility model;
[0018] Figure 3 This is a schematic diagram of the upper cover plate structure of this utility model;
[0019] Figure 4 This is a schematic diagram of the lower cover plate structure of this utility model;
[0020] Figure 5 This is a schematic diagram of the safety hook structure of this utility model.
[0021] Explanation of key symbols:
[0022] 1. Fixed handle assembly; 101. Upper cover plate; 102. Lower cover plate; 2. Universal pull wheel; 3. Handle assembly; 4. Handle rear bracket; 5. Linkage spring; 6. Movable handle pin; 7. Transmission seat; 8. Transmission frame; 9. C-shaped buckle; 10. Return torsion spring; 11. Shift fork; 12. O-ring; 13. Cover plate hole one; 14. Mounting pin; 15. Cover plate hole two; 16. Mounting hole; 17. Safety hook. Detailed Implementation
[0023] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments. Example
[0024] Please combine Figure 1-5 This embodiment of a cylindrical titanium clamp safety hook includes a fixed handle assembly 31. The fixed handle assembly 31 includes an upper cover plate 101, a lower cover plate 102, and a cover plate hole 13. A movable handle pin 6 is fixedly connected inside the upper cover plate 101. A handle assembly 3 is inserted into the surface of the movable handle pin 6. A linkage spring 5 is fixedly connected inside the upper cover plate 101. A transmission frame 8 is snapped onto the surface of the linkage spring 5. A C-shaped buckle 9 is inserted into the inside of the transmission frame 8. A transmission seat 7 is snapped onto the surface of the linkage spring 5. A handle rear bracket piece 4 is snapped onto the left end of the transmission seat 7. A reset torsion spring 10 is inserted into the inside of the upper cover plate 101. A shift fork 11 is inserted into the inside of the upper cover plate 101. An O-ring 12 is inserted into the inside of the upper cover plate 101. The upper cover plate 101 is internally provided, and the mounting pin 14 is fixedly connected inside the upper cover plate 101. The lower cover plate 102 has a cover plate hole 15 and a mounting hole 16 inside. After the flat wings are inserted into the hole of the lower cover plate 102, the safety hook 17 will be tilted because the shape does not fit the round hole of the cover plate. It is not easy to align the upper cover plate 101 with the hole when installing it, which increases the installation difficulty. In extreme cases, it will be misaligned with the hole of the upper cover plate 101, causing it to jam. After the safety hook 17 is assembled, the wings must rotate inside the hole, otherwise it will fail. The patented version changes the wings to a cylindrical shape, which can perfectly fit the cover plate hole and is easy to install. Since it is formed by powder metallurgy in one piece, it will not increase the manufacturing cost compared with the conventional version.
[0025] The linkage spring 5 can provide greater load-bearing capacity and torque transmission, making it suitable for mechanical systems that require higher load-bearing capacity and torque. It can more effectively compensate for radial, axial, and angular displacements between shafts, ensuring the stability and reliability of mechanical transmission.
[0026] The front of the upper cover plate 101 is fitted with a universal pull wheel 2, and the front of the lower cover plate 102 is fitted with a universal pull wheel 2.
[0027] A safety hook 17 is inserted into the inside of the cover plate hole 13, and a safety hook 17 is inserted into the inside of the cover plate hole 15.
[0028] The cover hole 13 and cover hole 2 15 facilitate the easy installation and removal of the internal safety hook 17. The wings of the safety hook 17 are designed in a cylindrical shape, which provides high flexibility and stability.
[0029] The safety hook 17 is inserted into the inside of the upper cover plate 101 and the lower cover plate 102. The overall design of the device facilitates easy installation and disassembly by the staff, allowing them to replace, repair, and disassemble the easily worn parts inside the device that have been used for a long time, thus increasing the overall service life of the device. The device also includes a safety locking function to prevent the clamps from being accidentally released, thereby avoiding injury to the patient or affecting the accuracy of the surgical operation.
[0030] The number of linkage springs 5 is set to two, and the two linkage springs 5 are symmetrically distributed front and back with the transmission frame 8 as the center.
[0031] The transmission seat 7 is snapped into the inside of the lower cover plate 102, and the handle rear bracket 4 is snapped into the inside of the lower cover plate 102.
[0032] The implementation principle of the cylindrical titanium clamp safety hook in this embodiment is as follows: After the flat wings are inserted into the hole of the lower cover plate 102, the safety hook 17 will be tilted because its shape does not fit the round hole of the cover plate. This makes it difficult to align the upper cover plate 101 with the hole when installing it, increasing the installation difficulty. In extreme cases, it may misalign with the hole of the upper cover plate 101, causing it to jam. After the safety hook 17 is assembled, the wings need to rotate inside the hole, otherwise it will fail. The patented version changes the wings to a cylindrical shape, which can perfectly fit the hole of the cover plate and is easy to install. Since it is formed by powder metallurgy in one piece, it will not increase the manufacturing cost compared with the conventional version. The overall design of the device makes it easy for staff to install and disassemble. It also allows staff to replace, repair and disassemble the internal consumable parts that have been used for a long time, increasing the overall service life of the device. The device includes a safety locking function to prevent the clamp from being accidentally released, thereby avoiding injury to the patient or affecting the accuracy of the surgical operation.
[0033] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.
Claims
1. A cylindrical titanium clamp safety hook, characterized in that, The assembly includes a fixed handle assembly (1), which includes an upper cover plate (101), a lower cover plate (102), and a cover plate hole (13). A movable handle pin (6) is fixedly connected inside the upper cover plate (101), and a handle assembly (3) is inserted into the surface of the movable handle pin (6). A linkage spring (5) is fixedly connected inside the upper cover plate (101), and a transmission frame (8) is snapped onto the surface of the linkage spring (5). A C-shaped buckle (9) is inserted into the inside of the transmission frame (8), and a transmission seat (7) is snapped onto the surface of the linkage spring (5). The left end of the transmission seat (7) is fitted with a handle rear bracket piece (4), a reset torsion spring (10) is inserted inside the upper cover plate (101), a shift fork (11) is inserted inside the upper cover plate (101), an O-ring (12) is inserted inside the upper cover plate (101), an upper cover plate (101) is opened inside the upper cover plate (101), an installation pin (14) is fixedly connected inside the upper cover plate (101), a cover plate hole two (15) is opened inside the lower cover plate (102), and an installation hole (16) is opened inside the lower cover plate (102).
2. The cylindrical titanium clamp safety hook as described in claim 1, characterized in that: The upper cover plate (101) has a universal pull wheel (2) inserted into its front side, and the lower cover plate (102) has a universal pull wheel (2) inserted into its front side.
3. The cylindrical titanium clamp safety hook as described in claim 1, characterized in that: A safety hook (17) is inserted into the inside of the first hole (13) of the cover plate, and a safety hook (17) is inserted into the inside of the second hole (15) of the cover plate.
4. The cylindrical titanium clamp safety hook as described in claim 3, characterized in that: The safety hook (17) is inserted into the interior of the upper cover plate (101) and the safety hook (17) is inserted into the interior of the lower cover plate (102).
5. A cylindrical titanium clamp safety hook as described in claim 1, characterized in that: The number of the linkage springs (5) is set to two, and the two linkage springs (5) are symmetrically distributed front and back with the transmission frame (8) as the center.
6. A cylindrical titanium clamp safety hook as described in claim 5, characterized in that: The transmission seat (7) is engaged inside the lower cover plate (102), and the handle rear bracket (4) is engaged inside the lower cover plate (102).