Surgical robot

By combining the suspension mechanism and the arc joint design, the limitations of the surgical robot's trocar angle adjustment are solved, enabling a wider range of posture adjustment and greater operational flexibility.

CN122123785AActive Publication Date: 2026-06-02SHANGHAI MICROPORT MEDBOT (GRP) CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHANGHAI MICROPORT MEDBOT (GRP) CO LTD
Filing Date
2026-04-28
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

Existing surgical robots have limitations in adjusting the angle of the trocar, and cannot achieve circumferential and posture adjustments, resulting in insufficient operational flexibility.

Method used

The design employs a combination of suspension mechanism, first arc joint, and second arc joint, which ensures that the first rotation axis, the second rotation axis of the first arc joint, and the third rotation axis of the second arc joint intersect at a fixed point. Through the linkage adjustment of these joints, the position of the puncture device's center of motion remains unchanged, thereby increasing the range of posture adjustment angles.

Benefits of technology

It improves the operational flexibility and posture adjustment range of the puncture device, reduces the control error of the center of motion, and meets clinical needs.

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Abstract

This application belongs to the field of medical devices, specifically relating to a surgical robot, comprising: a main body; a suspension mechanism including a first arm and a second arm connected to each other, the first arm being rotatably connected to the main body around a first rotation axis, and the second arm being offset from the first rotation axis in a direction perpendicular to the first rotation axis; a first arcuate joint disposed on the second arm and rotating relative to the second arm around a second rotation axis; and a second arcuate joint disposed on the first arcuate joint and rotating relative to the second arm around a third rotation axis; wherein the first rotation axis of the suspension mechanism, the second rotation axis of the first arcuate joint, and the third rotation axis of the second arcuate joint intersect at a fixed point, allowing for a large adjustment range of the trocar during posture adjustment.
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