Robotic Surgery Tool Retraction for Patient Movement and Power Loss
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Robotic surgical systems are vulnerable to patient movements and power outages, leading to positional inaccuracies and potential tissue damage, with existing systems lacking effective mechanisms for rapid tool retraction.
Innovation Solution
A system and method for quickly retracting surgical tools from the surgical site upon detection of patient movement or other issues, utilizing a retraction mechanism with pneumatic motive power and a shuttle mechanism to disable tool movement, enabling rapid repositioning and tool exchange.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If robotic surgical tools remain in position during patient movement or power outages, then surgical precision is maintained, but tissue damage risk increases due to incorrect positioning
Solution Approach 1:
The system applies preliminary anti-action by detecting predetermined conditions (patient movement, power outages) and automatically retracting the surgical tool from the surgical site before incorrect positioning can cause tissue damage. The retraction mechanism is pre-configured to activate upon detection of adverse conditions, preventing the harmful effect of mispositioning.
Solution Approach 2:
The system performs preliminary action by continuously monitoring for predetermined conditions and preparing the retraction mechanism in advance. When adverse conditions are detected, the tool is quickly retracted to a safe position, allowing the system to reset and resume surgery once conditions are cleared, thereby maintaining surgical precision while preventing tissue damage.
2Object-affected harmful factors
If surgical tools are quickly retracted from the surgical site upon adverse conditions, then tissue damage is prevented, but surgical productivity decreases due to interruption
Solution Approach 1:
The system applies the skipping principle by rapidly retracting the surgical tool through a predetermined path when adverse conditions are detected, minimizing the time the tool remains in a potentially harmful position. The quick retraction mechanism allows the system to quickly skip through the adverse condition period and resume surgery once conditions are cleared, thereby preventing tissue damage while minimizing productivity loss.
Solution Approach 2:
The system implements self-service by automatically detecting predetermined conditions and triggering retraction without requiring surgeon intervention. The robot monitors its own positional accuracy and automatically initiates retraction when adverse conditions are detected, then can autonomously reset and resume surgery, thereby preventing tissue damage while minimizing interruption to surgical productivity.
3Measurement precision
If robotic systems continuously monitor positional accuracy, then surgical precision is improved, but system complexity increases due to additional sensors and monitoring mechanisms
Solution Approach 1:
The system applies universality by integrating positional monitoring and retraction control functions into the existing robotic surgical system architecture. The same sensors and control mechanisms used for normal surgical operation are also used for monitoring positional accuracy and detecting adverse conditions, eliminating the need for separate dedicated monitoring hardware and reducing overall system complexity.
Data Source
AI summary
The invention involves a system and method for quickly retracting a tool from a surgical site. The system is generally constructed and arranged for attachment to a robotic arm for manipulation of the tool to perform an in-vivo surgery. The tool is constructed to retract from the surgical site upon a predetermined condition. The system and the robot can be reset when the condition has cleared so that the surgery can continue.