Laparoscopic Assist Robot Control System for Operator Fatigue Reduction
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Solution Overview
Problem
Current laparoscopic surgery methods face challenges such as increased operator inconvenience, longer operation times, and difficulty in performing complex surgeries due to physical limitations of the operator's arm and the high cost and limited availability of surgical robots.
Innovation Solution
The use of a robot-assisted laparoscopic surgery system comprising a control assist robot and a motion assist robot, where the control assist robot is operated with one hand and a manual laparoscopic tool with the other, allowing for precise control of surgical instruments and enhanced surgical capabilities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If traditional laparoscopic surgery methods are used, then surgery can be performed with simple equipment, but operator fatigue increases and operation time extends due to physical limitations of the operator's arm
Solution Approach 1:
The patent introduces a robot arm as an intermediary device between the operator and the surgical site. The robot arm receives control signals from the operator via a control device and executes surgical operations, thereby eliminating the physical limitations of the operator's arm while maintaining precise control. This mediator resolves the contradiction by transferring the mechanical operation burden from the operator to the robotic system.
Solution Approach 2:
The patent replaces the operator's direct mechanical arm movements with an automated robotic mechanical system. Instead of the operator physically manipulating surgical instruments with their own arms, the control device sends signals to the robot arm, which then performs the mechanical operations. This substitution eliminates operator fatigue and time loss associated with manual manipulation while preserving surgical precision.
2Measurement precision
If surgical robots are used to assist laparoscopic surgery, then surgical precision and capability are enhanced, but the cost increases and availability is limited
Solution Approach 1:
The patent divides the surgical robot system into separate functional modules: a control device for receiving operator input, a robot arm for executing movements, and a surgical instrument for performing operations. This segmentation allows each component to be optimized independently and potentially manufactured separately, reducing overall system complexity and cost while maintaining surgical precision through coordinated operation of the modules.
Solution Approach 2:
The robot arm is designed with multiple degrees of freedom and the capability to perform various surgical operations through different end effectors. This multi-functionality allows a single robotic system to replace multiple specialized devices, reducing overall system complexity and cost while maintaining high surgical precision across different procedure types.
3Adaptability or versatility
If a robot arm with multiple degrees of freedom is used, then complex surgical procedures can be performed, but the device complexity and cost increase
Solution Approach 1:
The patent implements a robot arm with multiple degrees of freedom that can dynamically adjust its configuration during surgical procedures. The robot arm can change its posture, reach different positions, and adapt to various surgical requirements through real-time control signal adjustments. This dynamic capability enables complex surgical procedures while the modular control system manages the complexity through software rather than fixed mechanical structures.
Data Source
AI summary
Proposed are methods and systems for laparoscopic surgery with assist robot and controlling methods for laparoscopic surgery system with assist robot. The method may include arranging a control assist robot on one region of a bed and a motion assist robot on another region of the bed to be spaced a certain distance apart from the control assist robot. The motion assist robot may include a surgical instrument that moves according to a control of the control assist robot. The method may also include performing laparoscopic surgery in a state in which an operator is positioned next to the control assist robot and grips a manual type instrument with one hand and the control assist robot with the other hand.