一种手术钳柔性部结构
By designing a flexible part structure for the surgical forceps, the problem of the forceps head being difficult to replace in existing technologies has been solved, enabling flexible replacement and angle adjustment of the forceps head, and improving the operational flexibility and space utilization efficiency of minimally invasive surgical instruments.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HANGZHOU NANYU MEDICAL INSTR CO LTD
- Filing Date
- 2025-04-27
- Publication Date
- 2026-07-17
AI Technical Summary
Existing minimally invasive surgical instruments lack a structure that facilitates the replacement of forceps heads, resulting in low flexibility in instrument operation and a large space occupation.
A flexible section structure for surgical forceps was designed. Through the combination of an operating tube, a connecting tube, a working tube, and a rotating component, the forceps head can be detached, replaced, and flexibly adjusted. This includes the use of a snap-fit component and a rotating component to enable detachable connection and rotation between the connecting tube and the working tube.
It allows for the replacement of different forceps heads as needed, facilitates the disassembly and assembly of the working tube, improves connection strength, and allows for adjustment of the forceps head angle, thereby enhancing the operational flexibility and space utilization efficiency of surgical instruments.
Smart Images
Figure CN224505524U_ABST
Abstract
Claims
1. A flexible part structure for surgical forceps, characterized in that it comprises: An operating tube (1) is provided with a connecting tube (2), which is rotatably connected to the operating tube (1). Working tube (3), on which pliers (7) are installed; The working tube (3) is detachably connected to the connecting tube (2) via the snap-fit assembly (4); Rotating component (5), which is installed inside operating tube (1) and connected to connecting tube (2).
2. A flexible portion of a surgical forceps according to claim 1, wherein One end of the connecting pipe (2) is rotatably connected to one end of the operating pipe (1). The rotating assembly (5) includes a motor (51) and a gear ring (52). The gear ring (52) is installed on the inner wall of the connecting pipe (2). A motor seat (53) is installed on the inner wall of the operating pipe (1). The motor (51) is installed on the motor seat (53). A gear (54) is installed on the motor shaft of the motor (51). The gear (54) meshes with the gear ring (52).
3. The flexible portion of a surgical forceps according to claim 1, wherein The snap-fit assembly (4) includes a connecting ring (41) and a snap-fit ring (42). The connecting ring (41) is installed on the inner wall of the working pipe (3), and the snap-fit ring (42) is installed on the inner wall of the connecting ring (41). A plurality of snap-fit plates (43) are installed on the connecting ring (41) in a circular arrangement. The cross-sectional shape of the snap-fit plate (43) is L-shaped. The snap-fit plate (43) includes a side plate (44) and a bottom plate (45). One end of the side plate (44) is connected to... The connecting ring (41) is connected, and the other end of the side plate (44) is connected to one end of the base plate (45). The snap ring (42) is provided with a slot (46), which corresponds to the base plate (45). A snap block (47) is installed on the inner side of the base plate (45). The snap ring (42) is provided with a slot (48) on the side away from the connecting ring (41). The cross-sectional shape of the snap block (47) is arc-shaped, and the snap block (47) matches the slot (48).
4. A flexible portion of a surgical forceps according to claim 3, wherein The snap ring (42) has several guide grooves (49) on the side away from the connecting ring (41). The guide grooves (49) correspond one-to-one with the snap plate (43) and the guide grooves (49) correspond to the snap block (47). The guide grooves (49) are arc-shaped. The depth of the end of the guide groove (49) near the slot (46) is greater than the depth of the end of the guide groove (49) near the slot (48).
5. The flexible portion of a surgical forceps according to claim 3, wherein The connecting ring (41) is provided with a plurality of elastic posts (6) arranged in a circular pattern. One end of the elastic post (6) is connected to the bottom surface of the connecting ring (41), and the other end of the elastic post (6) is in contact with the snap ring (42).
6. The flexible portion of a surgical forceps according to claim 1, wherein, One end of the pliers head (7) is equipped with a rotating ball (71), and the inside of the working tube (3) is provided with a rotating groove (31). The pliers head (7) is rotatably connected to the working tube (3) through the cooperation of the rotating groove (31) and the rotating ball (71). A fixing plate (72) is installed inside the working tube (3), and an electric push rod (73) is installed on the fixing plate (72). A fixing block (74) is installed at the top of the electric push rod (73), and the fixing block (74) matches the rotating ball (71).