Snake bone joint, flexible joint assembly, surgical operation arm and surgical robot
By employing an inclined extended mating surface and support structure design in the snake-bone joint, the problem of continuous mating rotation between adjacent components is solved, improving bending accuracy and stability, extending service life, and enhancing the operational reliability of the surgical robot.
CN223614927UActive Publication Date: 2025-12-02MAIDER MEDICAL IND EQUIP
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Patent Information
- Application Number
- CN202422838885.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-20
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2034-11-20
AI Technical Summary
Technical Problem
The short continuous rotational distance between adjacent components in existing snake-bone joints results in low bending accuracy and easy damage, affecting the stability and safety of surgical instruments.
Method used
The design employs an inclined extended mating surface, which reduces the rotational clearance and increases the continuous mating angle through rolling contact between the mating convex and concave surfaces. The stability and precision of the snake-bone component are ensured by the support structure and constraint cables.
Benefits of technology
It improves the bending accuracy and stability of the snake bone joint, extends its service life, and enhances the operational reliability and precision of the surgical robot.
✦ Generated by Eureka AI based on patent content.
Abstract
The utility model discloses a snake bone joint, a flexible joint assembly, a surgical operation arm and a surgical robot. The snake bone joint comprises two snake bone components, and each snake bone component comprises a rotating base part and a matching part. The rotating base part is provided with a first end face capable of rotating based on a pivot; the matching part is arranged on the first end surface and is provided with a matching curved surface, and the two snake bone components are rotatably butted through the matching of the matching curved surface; the matching curved surface comprises a plurality of matching contour lines arranged in the first extension direction; the plurality of matching contour lines which are arranged in sequence are formed based on a plurality of reference circles which are arranged in sequence, and the plurality of reference circles take the pivot as the center of a circle and are projected in the extension direction of the pivot to coincide; each matching contour line is a curve formed by taking one point on the circumference of a reference circle as a central point; the orthographic projection of the first extension direction and the orthographic projection of the pivot extension direction on the first end face are in a non-perpendicular crossing state. Therefore, the utility model has the advantage of improving the motion precision and the load deformation resistance.
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