Operation Support Device Dynamic Manipulation Resistance Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing operation support devices for remote manipulation lack the ability to dynamically adjust manipulation resistance based on the operation input, leading to user fatigue and instability during precise and delicate operations.
Innovation Solution
An operation support device with a control unit that adjusts the magnitude and direction of driving force, including torque, based on operation input, using a detection part to monitor motion and switch between modes to optimize resistance for different operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a fixed manipulation resistance is used in the master slave manipulator, then the device structure is simple, but the user experiences fatigue and instability during precise operations
Solution Approach 1:
The patent applies dynamics by making the manipulation resistance variable rather than fixed. The drive source dynamically adjusts the driving force based on the operational state, allowing the resistance to change in real-time. This resolves the contradiction by providing operation stability through adaptive resistance while avoiding the complexity of complex mechanical adjustment mechanisms.
Solution Approach 2:
The patent changes the parameter of manipulation resistance from a constant value to a variable parameter that depends on operational conditions. By controlling the magnitude of the driving force based on operational state, the system achieves stable manipulation without requiring complex mechanical resistance adjustment mechanisms.
2Stability of the object's composition
If the drive source generates large driving force to increase manipulation resistance, then operation stability improves, but the user cannot perform rapid operations
Solution Approach 1:
The system dynamically adjusts the driving force magnitude based on the operational state. During precise operations, the drive source generates larger driving force to provide stability. During rapid operations, the driving force is reduced to allow faster movement. This dynamic adaptation resolves the contradiction between stability and speed.
Solution Approach 2:
The control unit receives feedback about the operational state and adjusts the driving force accordingly. This feedback mechanism allows the system to automatically provide appropriate manipulation resistance for different operation types, resolving the contradiction between stability and operation speed without manual intervention.
3Speed
If the drive source generates small driving force to reduce manipulation resistance, then rapid operations become possible, but the user experiences hand jiggling and instability
Solution Approach 1:
The drive source dynamically adjusts its output based on operational needs. When rapid movement is required, the driving force is reduced to enable fast operations. When precision is needed, the driving force increases to eliminate hand jiggling. This dynamic control resolves the contradiction between speed and stability.
4Manufacturing precision
If the manipulation resistance is adjusted for each operation type, then operation precision improves, but the control system becomes complex
Solution Approach 1:
The control unit automatically adjusts the driving force based on the operational state without requiring manual configuration. The system self-adapts to different operation types by detecting the operational state and automatically selecting appropriate resistance levels, achieving high precision while avoiding complex manual control systems.
Solution Approach 2:
The system changes the manipulation resistance parameter automatically based on operational conditions. By using sensor feedback and control algorithms, the system adjusts the driving force parameter in real-time to match the required operation precision, avoiding the need for complex mechanical adjustment mechanisms.
Data Source
AI summary
An operation support device includes an operation part in which the operation input is performed by an operator, an action part to which a surgical tool is attached and which is driven by the operation input, a drive source that is provided in the operation part, and generates a driving force which adjusts the manipulation resistance at the time of the operation input, and a control unit that sets the magnitude and direction of the driving force, wherein the control unit sets the magnitude and direction of the driving force based on the operation input to the operation part.