Interventional surgical robot master end

By introducing elastic elements and floating blocks into the main end of the interventional surgical robot, the problem of force detection distortion caused by the rigid connection between the force detection component and the operation component was solved, achieving precise force feedback control and improving the accuracy and reliability of interventional surgery.

WO2026114082A1PCT designated stage Publication Date: 2026-06-04SHENZHEN INST OF ADVANCED BIOMEDICAL ROBOT CO LTD

Patent Information

Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
SHENZHEN INST OF ADVANCED BIOMEDICAL ROBOT CO LTD
Filing Date
2025-11-20
Publication Date
2026-06-04

AI Technical Summary

Technical Problem

The force detection component and the operation component of the existing interventional surgical robot are rigidly connected, which leads to force detection distortion and makes it impossible to achieve accurate force feedback closed-loop control.

Method used

The design employs elastic elements and floating blocks. The force sensor collects the operating force through the floating blocks and corrects the reverse thrust of the force feedback component through the main controller. Precise force feedback is achieved using components such as cross roller guides and encoders.

Benefits of technology

It enables precise control of force feedback, avoids force sensor measurement distortion, improves the accuracy and reliability of operation, and extends the life of the force sensor.

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    Figure CN2025136313_04062026_PF_FP_ABST
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Abstract

An interventional surgical robot master end, belonging to the technical field of interventional surgical robots. The interventional surgical robot master end comprises a housing; a force feedback assembly, provided in the housing; a force measurement assembly, comprising a force sensor and a force transmission mechanism, the force transmission mechanism comprising a fixed base, an elastic member and a floating block floatingly provided on the fixed base, the elastic member being used for enabling the fixed base, the force sensor and the floating block to abut against each other in sequence, one end of the force sensor being connected to the floating block, and being used for acquiring a force generated by the floating block during movement, and the fixed base being connected to the force feedback assembly; an operation assembly, connected to the floating block; and a master end controller, electrically connected to the force sensor and the force feedback assembly. The arrangement of the force transmission mechanism realizes fine regulation and control of force feedback, which helps doctors to more accurately sense resistance during surgical operation, thus improving the accuracy of the operation.
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