Surgical Robot Speed Control by Procedure Region Risk Level
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Solution Overview
Problem
Current surgical robot systems lack the ability to adjust their operation speed based on the risk level of different procedure regions within a surgical area, potentially leading to accidents when performing surgery near critical organs or blood vessels.
Innovation Solution
A surgical robot system with a robot arm and driver that adjusts its operating speed based on a risk level set for each procedure region, allowing for more precise and accurate surgery by slowing down in high-risk areas and speeding up in low-risk areas.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the surgical robot operates at a constant speed throughout the entire surgical region, then the surgery can be performed efficiently and quickly, but the risk of causing damage to risk objects (blood vessels, organs) increases when operating in high-risk areas
Solution Approach 1:
The surgical region is divided into multiple procedure regions with different risk levels. The robot arm operates at different speeds depending on the specific procedure region - faster in low-risk areas and slower in high-risk areas. This local differentiation of operating parameters resolves the contradiction by allowing high productivity in safe zones while ensuring high reliability in dangerous zones near blood vessels and organs.
Solution Approach 2:
The operating speed of the robot arm is made dynamic rather than constant. The driver automatically adjusts the speed based on the risk level of the current procedure region. This dynamic adaptation allows the system to optimize between speed and safety in real-time, maintaining high productivity when possible while ensuring safety when necessary.
2Reliability
If the surgical robot slows down in high-risk areas to improve precision and safety, then the risk of causing medical accidents decreases, but the overall surgery time increases
Solution Approach 1:
Speed reduction is applied locally only to procedure regions with high risk levels, rather than uniformly across the entire surgical region. This allows the robot to maintain high speed in low-risk areas, minimizing overall surgery time while still ensuring safety and precision in high-risk areas near critical structures.
Solution Approach 2:
The system applies speed reduction only partially - specifically in high-risk procedure regions rather than throughout the entire surgical process. This partial application of the speed control measure achieves the necessary safety improvement without the excessive time loss that would result from slowing down during all surgical operations.
3Loss of time
If the surgical robot maintains high speed throughout the surgical region, then the surgery can be completed quickly, but the precision and accuracy of surgery in high-risk areas deteriorates
Solution Approach 1:
The system differentiates operational parameters by location, maintaining high speed in low-risk procedure regions to preserve productivity while reducing speed in high-risk procedure regions to ensure precision. This local quality approach allows the robot to achieve both speed and accuracy where needed.
Solution Approach 2:
The operating speed is dynamically adjusted based on the risk characteristics of each procedure region. The driver modifies speed in real-time according to the surgical context, allowing high precision when operating near risk objects while maintaining high speed in safer areas, thus resolving the contradiction between speed and precision.
Data Source
AI summary
Disclosed are a surgical robot system and a surgical robot control method. The surgical robot system includes a surgical tool configured to perform surgery on each of a plurality of procedure regions in a surgical region which is divided into the plurality of procedure regions, a robot arm on which the surgical tool is mounted, and a driver configured to operate the robot arm. The present invention adjusts a speed at which a surgical robot moves, based on a risk level which is set for a procedure region, and thus enhances a stability of surgery performed by the surgical robot and moreover decreases a degree to which the surgery is delayed, thereby reducing pain and inconvenience caused to an operator and a patient.