Medical Manipulator Speed Control for User Adaptability
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Solution Overview
Problem
Existing medical manipulators lack the ability to optimize operating speed according to individual user differences and the specific type of tip operating unit, leading to suboptimal performance in endoscopic surgeries.
Innovation Solution
A medical manipulator system with a controller that includes a speed setting unit to adjust the operating speed of the tip operating unit, allowing for customizable rotation and swing operations, and a storage unit to store and retrieve preferred speed settings for different users and tip operating units, enabling flexible and optimal speed adjustments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the operating speed of the tip operating unit is increased to improve surgical efficiency, then productivity increases, but individual user preferences and different surgical forms require different optimal speeds making it difficult to satisfy all users
Solution Approach 1:
The system dynamically adjusts the operating speed of the tip operating unit based on user-selected profiles. The controller receives speed setting inputs and modifies actuator driving speeds in real-time, allowing the same manipulator to adapt to different users' preferences and surgical requirements without hardware changes.
Solution Approach 2:
The invention changes the operational parameter (speed) of the actuator based on user input. By providing a speed setting unit that accepts user commands, the system modifies the driving speed parameter to match individual user preferences and different surgical forms, resolving the contradiction between fixed performance and adaptability.
2Adaptability or versatility
If multiple speed settings are provided for different users and surgical forms, then adaptability improves, but device complexity increases due to additional control mechanisms
Solution Approach 1:
The controller serves multiple functions: it controls the actuator's basic operation, processes speed setting inputs, stores user preferences, and adjusts operating parameters. By making the controller multi-functional, the invention avoids adding separate dedicated devices for each function, thus managing complexity while providing adaptability.
Solution Approach 2:
The system allows users to self-adjust the operating speed through the speed setting unit according to their own preferences and surgical needs. This self-service capability eliminates the need for complex automated detection systems that would otherwise be required to determine user preferences, thereby reducing device complexity while maintaining high adaptability.
Data Source
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AI summary
A medical manipulator system (10) includes an operation unit (14) that has motors (50a and 50b), a composite input unit (24) and a tip operating unit (12) that is operated by a driving force of the motors (50a and 50b), a working unit (16) that may by attached to and detached from the operating unit (14), and a console (29, 504). The motors (50a and 50b) are driven based on an input operation to the composite input unit (24), and therefore, the tip operating unit (12) can perform at least a rotation operation along an axial direction or a swing operation that crosses the axial direction, and the console (29, 504) changes a driving speed of the motors (50a and 50b) and includes a speed setting unit (126) that can change an operating speed of the rotation operation or the swing operation of the tip operating unit (12).