robot controller

By combining the design of sheath actuator and guidewire actuator with an ionoactive polymer actuator, the problem of unstable movement control of guidewires and catheters in vivo has been solved, enabling precise catheter system operation and adapting to complex anatomical structures.

CN116211476BActive Publication Date: 2026-05-26XCATH INC +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
XCATH INC
Filing Date
2018-12-20
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Existing technologies make it difficult to precisely control the relative movement of the guidewire and catheter within the patient's body, especially the rotation and orientation of the guidewire, leading to instability in its advancement within the body.

Method used

The design employs a combination of sheath actuator and guide wire actuator, achieving parallel and controllable movement of the sheath and guide wire through paired pressure roller assemblies, and controlling the bending and rotation of the guide wire with an ionoactive polymer actuator.

Benefits of technology

It enables precise positioning and stable movement of the guidewire and sheath within the patient's body, improving the operational controllability and flexibility of the catheter system and allowing it to better adapt to tortuous anatomical structures.

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Abstract

Robotic Controller. This document provides a manipulable surgical robot system for positioning a catheter, including a sheath and a guidewire, within a patient, comprising: a sheath actuator configured to advance and retract a sheath having a hollow interior along a sheath advance and retraction path extending therein; and a guidewire actuator configured to advance and retract a guidewire along a guidewire advance and retraction path extending therein, wherein each of the sheath advance and retraction path and the guidewire advance and retraction path extends between paired rollers in a respective sheath actuator and roller actuator, and the paths are parallel to each other.
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