Dual Sensor Positioning for Robotic Surgical Tools
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Solution Overview
Problem
Robotic surgical systems face challenges in accurately detecting the position and torque of surgical tools during procedures, leading to potential inaccuracies and complications.
Innovation Solution
The implementation of a dual sensor system, where a first sensor system detects the position of the robotic arm and a second, independent sensor system detects the position of the surgical tool, providing redundant and precise positioning data to the control unit.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a single sensor system is used to detect robotic arm position, then device complexity is reduced, but measurement precision and reliability deteriorate
Solution Approach 1:
The patent implements a dual sensor system where a first sensor system and a second sensor system independently detect the position of the robotic arm and surgical tool. This copying approach provides redundant measurement data, enhancing position detection accuracy and reliability without requiring a single complex sensor system. The redundant sensor systems cross-validate each other's measurements to improve overall measurement precision.
Solution Approach 2:
The sensor system is divided into separate functional components: a first sensor system for detecting robotic arm position and a second sensor system for detecting surgical tool position. This segmentation allows each sensor system to be optimized for its specific detection task, improving overall measurement precision while maintaining manageable complexity through modular architecture.
2Reliability
If redundant sensor systems are implemented, then reliability is improved, but device complexity increases
Solution Approach 1:
The patent employs redundant sensor systems that independently measure the same physical quantities (robotic arm position and surgical tool position). This copying of measurement functionality provides backup verification and fault tolerance, significantly improving positioning reliability. The system can cross-validate readings from both sensor systems to detect and correct errors, ensuring reliable operation even if one sensor system fails.
3Measurement precision
If independent sensor systems are used for robotic arm and surgical tool, then measurement precision is improved, but device complexity increases
Solution Approach 1:
The patent segments the sensing function into distinct sensor systems: one dedicated to robotic arm position detection and another dedicated to surgical tool position detection. This segmentation allows each sensor system to be specifically optimized for its target object, improving measurement precision. The modular segmented architecture manages complexity by assigning specific detection tasks to dedicated sensor subsystems rather than using a single omnibus sensor system.
Data Source
AI summary
Various surgical systems are disclosed. A surgical system comprises a robotic system. The robotic system comprises a control unit; a robotic arm comprising an attachment portion; a first sensor system in signal communication with the control unit; and a second sensor system. The first sensor system is configured to detect a position of the attachment portion. A surgical tool is removably attached to the attachment portion. The second sensor system is independent of the first sensor system and is configured to detect a position of the surgical tool.