Medical System Automatic Speed Mode Switching Control
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Solution Overview
Problem
Conventional medical systems with endoscopes face challenges in ensuring easy and precise switching between high-speed and low-speed modes for treatment instrument operation, often leading to complicated operations and inaccuracies due to manual switching or detection errors.
Innovation Solution
A medical system with a treatment instrument that includes a displacement mechanism, detection portion, and control unit to automatically control the speed of the treatment instrument based on detection results, allowing for easy and precise switching between modes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If manual switching between high-speed and low-speed modes is performed using separate switching means, then the treatment instrument can be operated in different speed modes, but the operation becomes complicated and the operator may forget to switch modes
Solution Approach 1:
The patent combines the high-speed/low-speed mode switching function with the existing sheath advancing/retreating switch. The same switch that controls sheath movement also controls treatment instrument speed mode, eliminating the need for separate switching means and simplifying the operation interface.
Solution Approach 2:
The sheath advancing/retreating switch is given multiple functions: it controls both sheath position and treatment instrument speed mode. This multi-functional design reduces the total number of controls and improves ease of operation while maintaining full adaptability.
2Extent of automation
If automatic switching between modes is performed through detection of insertion length, then mode switching can be automated, but sliding between sheath and roller or mismatch between insertion length and detection amount may occur when insertion portion is complicatedly bent
Solution Approach 1:
The patent introduces a roller as an intermediary mechanism between the sheath and the detection system. The roller converts the sheath's linear movement into rotational movement, providing a more reliable detection method that is less susceptible to bending-induced errors in the insertion portion.
Solution Approach 2:
The patent replaces direct mechanical measurement of insertion length with a rotational detection system using rollers. This substitution reduces the impact of sheath bending on detection accuracy, as the roller rotation can be precisely measured regardless of the sheath's linear configuration.
3Extent of automation
If automatic switching is performed based on insertion length detection, then mode switching can be automated, but the system cannot switch modes at user-intended positions or arbitrary positions other than initial set position
Solution Approach 1:
The patent makes the switching position dynamic and adjustable rather than fixed. The system allows users to set arbitrary switching positions and modify them during operation, enabling flexible adaptation to different procedural needs while maintaining automated switching functionality.
Solution Approach 2:
The patent enables changes in the switching position parameter. Users can adjust the insertion length threshold that triggers mode switching, allowing the system to adapt to different procedural requirements and switch at user-intended positions rather than being constrained to a single predetermined position.
Data Source
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AI summary
A medical system according to the present invention includes: a medical instrument 40 provided with a treatment portion 41 for performing treatment operations on living body tissue; a treatment portion displacement mechanism 60 for displacing the position of the treatment portion of the medical instrument; a treatment detection portion 20a that detects whether the treatment portion is in a treatment state or a non-treatment state; and a control portion 20 that controls displacement of the treatment portion by controlling the treatment portion displacement mechanism according to detection results from the treatment detection portion.