Robotic Surgical Pivot Position Setting for Abdominal Wall Protection
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Solution Overview
Problem
Existing robotic surgical systems face challenges in setting the pivot position of surgical instruments to minimize the influence on the patient's abdominal wall and ensure precise rotation without causing discomfort or damage.
Innovation Solution
A robotic surgical system with a manipulator arm, pivot position setter, and controller that allows for setting a temporary pivot position based on operator input, adjusting it by a predetermined length, and storing it as the final pivot position, typically closer to the abdominal wall than the body surface.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the pivot position is set on the body surface of the patient, then the distance measurement is simple, but the influence of rotation on the patient increases
Solution Approach 1:
The system performs preliminary action by automatically calculating and setting the optimal pivot position inside the abdominal wall before surgery begins. The controller computes the pivot position based on trocar insertion position and abdominal wall thickness, then pre-sets this position as the rotation fulcrum, eliminating the need for manual positioning during surgery and ensuring minimal impact on the patient from the start.
2Object-affected harmful factors
If the pivot position is set closer to the center of the abdominal wall, then the influence on the patient is reduced, but the setting complexity increases
Solution Approach 1:
The system implements self-service by automatically determining the optimal pivot position through computational algorithms. The controller receives input data (trocar position, abdominal wall thickness) and autonomously calculates the precise pivot location inside the abdominal wall, then configures the robotic arm accordingly. This eliminates manual intervention and complex operator judgment, making the system self-configuring while achieving optimal patient safety.
3Ease of operation
If manual pivot position setting is used, then the system is simple to operate, but the precision of rotation is compromised
Solution Approach 1:
The system implements feedback by continuously monitoring the actual pivot position through sensors and comparing it with the target position calculated by the controller. The controller receives real-time data about the robotic arm's configuration and abdominal wall characteristics, automatically adjusts the pivot position settings, and verifies the final position accuracy. This closed-loop feedback ensures high precision while maintaining ease of operation through automation.
Data Source
AI summary
In a robotic surgical system, a controller is configured or programmed to set a temporary pivot position based on an operation on a pivot position setter and store a position adjusted by a predetermined length from the temporary pivot position as a pivot position in a storage.