一种记忆合金肋骨接骨板拆除器
By designing a shape memory alloy rib plate removal device, and utilizing an adjustable bending angle removal hook and a cylinder drive system, the problem of difficult plate removal in existing technologies has been solved. This allows for flexible adaptation to different patients' rib structures, improving the stability and efficiency of surgical procedures.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XIANGAN HOSPITAL AFFILIATED TO XIAMEN UNIV
- Filing Date
- 2025-04-29
- Publication Date
- 2026-07-17
AI Technical Summary
In existing technologies, shape memory alloy rib plates are difficult to remove effectively after being fixed in the patient's body, and there is a lack of special tools suitable for different patients, which makes surgical operations inconvenient.
A shape memory alloy rib plate removal device was designed, including a removal rod and multiple removal parts. The removal parts are equipped with removal hooks with adjustable bending angles, which are connected to the removal rod through a connecting unit. The device is also equipped with a micro air pump and a cylinder drive system to achieve hook opening and closing control, adapting to the rib structure of different patients.
This allows for the selection of appropriate removal components based on individual patient differences, improving the stability and efficiency of surgical procedures and simplifying the removal process of bone plates.
Smart Images
Figure CN224505552U_ABST
Abstract
Claims
1. A memory alloy rib bone plate remover, characterized in that: It includes a removal rod (1) and several sets of removal parts (2) for replacement. A connecting unit (3) is provided at one end of the removal part (2) and the removal rod (1). Two removal hooks (21) that bend outward away from the removal rod (1) are fixed at the other end of the removal part (2). It also includes a driving unit that drives the two removal hooks (21) to open and close. A connector (11) that cooperates with the connecting unit (3) is provided at one end of the removal rod (1) and the removal part (2).
2. The shape memory alloy rib plate removal device according to claim 1, characterized in that: The connecting unit (3) includes a connecting cylinder (31), and a protruding ring (311) is fixedly provided at one end of the connecting cylinder (31) near the dismantling part (2). The dismantling part (2) and the dismantling rod (1) are connected at one end and an annular groove (22) is provided to cooperate with the protruding ring (311). The protruding ring (311) and the annular groove (22) are rotatably connected. A limiting head (23) is fixed at one end of the connection between the demolition part (2) and the demolition rod (1). The connecting head (11) has a limiting groove (111) that cooperates with the limiting head (23). The limiting head (23) and the limiting groove (111) are inserted into each other. The connecting cylinder (31) and the connecting head (11) are threaded together.
3. The shape memory alloy rib plate removal device according to claim 2, characterized in that: The limiting head (23) has a polygonal cross-section.
4. The shape memory alloy rib plate removal device according to claim 1, characterized in that: The bending angle α of the removal hook (21) in several groups is 0 to 90°.
5. A shape memory alloy rib plate removal device according to claim 3, characterized in that: The tail of the removal rod (1) is fixed with a gripping part (12).
6. The shape memory alloy rib plate removal device according to claim 5, characterized in that: The drive unit includes a micro air pump and a micro cylinder that cooperates with the two removal hooks (21). The micro cylinder is located in the removal part (2). The micro air pump is installed at the tail of the grip part (12). An airflow channel (13) is provided in the removal rod (1) and the removal part (2). The limiting groove (111) is also provided with an air head (231) that cooperates with the airflow channel (13). After the limiting head (23) is inserted into the limiting groove (111), the air head (231) is inserted into the airflow channel (13) of the limiting head (23) to connect the micro air pump and the micro cylinder.
7. A shape memory alloy rib plate removal device according to claim 6, characterized in that: The grip (12) is also provided with a solenoid valve, and the grip (12) is also provided with an adjustment ring (121) that cooperates with the solenoid valve to control the gas flow rate in the airflow channel (13).
8. A shape memory alloy rib plate removal device according to claim 7, characterized in that: The grip (12) also contains a power supply unit and a microcontroller.
9. The shape of the hook (21) also includes a claw type.