A micro-actuator for inner ear injection sampling procedures

By integrating a drive and sensing module with a micro-needle puncture mechanism, the micro-actuator solves the problems of operational difficulty and system integration in inner ear surgery, achieving minimally invasive, precise, and highly safe operation of inner ear surgery, and is suitable for inner ear injection sampling surgery.

CN119279920BActive Publication Date: 2026-04-14HARBIN INST OF TECH
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Patent Information

Application Number
CN202411393064.2
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-10-08
Publication Date
2026-04-14
Estimated Expiration
2044-10-08

AI Technical Summary

Technical Problem

Existing inner ear actuators cannot accurately assist doctors in judging the progress of surgery, are difficult to operate, lack clinical surgical practicality, and are not easy to integrate and sterilize.

Method used

A miniature actuator was designed, integrating a drive and sensing module, a microneedle puncture mechanism, and a high-precision linear drive module. Equipped with an endoscope camera and a tension sensor, it enables real-time imaging and force feedback, assisting doctors in judging the progress of surgery. Its modular structure facilitates integration with a robotic arm and allows for sterilization.

Benefits of technology

It enables minimally invasive inner ear surgery, precisely reaching the target area, reducing the difficulty of the operation, improving the safety and success rate of the surgery, meeting the requirements of minimally invasive surgery, and featuring multifunctional integration and easy sterilization.

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Abstract

The application relates to a micro actuator for inner ear injection sampling surgery, and relates to the field of medical instruments.The application solves the problems that the existing actuator cannot more accurately assist the doctor in judging the surgery progress, lacks clinical surgery practicability in design, and makes the otological surgery still have certain operation difficulty.The microneedle puncture mechanism module is embedded in the driving and sensing module, the driving and sensing module is installed on the high-precision linear driving module, the end operation mechanism module is installed at the front of the driving and sensing module, the microneedle puncture mechanism module passes through the end operation mechanism module and extends out, and the endoscope camera module in the end operation mechanism module provides real-time images in the surgery process, the tension sensor in the driving and sensing module monitors the change of the steel wire tension in real time, and safety interaction with the ear canal environment is ensured.The application is used for inner ear injection sampling surgery.
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