Medical Bending Operating Member Rotating Mechanism
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Solution Overview
Problem
Existing bending operating members for flexible elongated medical devices require complex hand operations and protrude from the device, leading to user inconvenience and increased risk of accidental handling, which compromises user-friendliness and operational safety.
Innovation Solution
A bending operating member with a rotating mechanism that converts rotation into linear movement through an inclined groove and sliding member, allowing for efficient bending of the elongated member without protruding handles, featuring adjustable inclination angles for varying bending amounts and improved user control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the handle is provided at the side portion of the case to protrude therefrom, then the user can simply perform a bending operation at hand, but the handle may be accidentally touched by fingers causing operational constraints and safety issues
Solution Approach 1:
The patent introduces a rotating member that rotates around the axial direction as an intermediary mechanism. Instead of directly pulling the operating wire with a side-protruding handle, the user rotates the rotating member which then converts this rotation into linear movement of the moving member, ultimately pulling the operating wire. This intermediary rotational mechanism eliminates the safety issue of accidental handle activation while maintaining operational simplicity.
Solution Approach 2:
The patent changes the dimension of the operating mechanism from lateral (side-protruding handle) to axial (rotating member rotating around the axis). The rotating member rotates around the axial direction of the elongated member, converting the bending operation from a lateral pulling action to an axial rotation action. This dimensional change resolves the contradiction by preventing accidental activation while maintaining ease of use.
2Device complexity
If the rotating member is made to rotate around the axial direction, then the device structure is simplified and safety is improved, but the bending distance and control precision need to be maintained
Solution Approach 1:
The patent employs parameter changes in the converting part, specifically using an inclined groove with a specific inclination angle. The inclined groove converts the rotational movement of the rotating member into linear movement of the moving member. By adjusting the inclination angle of the groove, the patent optimizes the relationship between rotation amount and linear displacement, thereby maintaining precise bending control while simplifying the overall device structure.
3Measurement precision
If the inclined groove with specific inclination angle is used, then the bending amount can be precisely controlled, but the device requires additional components like sliding member and transmission member
Solution Approach 1:
The patent merges multiple functions into the converting part. The inclined groove not only converts rotational movement to linear movement but also provides the necessary mechanical advantage and control precision. The sliding member and transmission member are integrated into this converting mechanism, creating a compact assembly that achieves precise bending control without requiring separate, additional components scattered throughout the device.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables simple and precise bending operations with enhanced user-friendliness and safety by converting rotation into linear movement, increasing the bending distance without enlarging the device, and allowing for fine adjustments in bending angles, thus improving the operativity and convenience of medical apparatuses.
Implementation Method 1
a groove portion that is formed in the rotating member and extends so as to incline in the axial direction of the elongated member, a sliding member that is arranged at the groove portion and is slidingly movable along the groove portion with the rotation of the rotating member
Data Source
AI summary
A bending operating member for performing a bending operation on an elongated member having flexibility in a direction intersecting an axial direction of the elongated member, the bending operating member includes a pulling member, at least a portion of the pulling member being configured to be connected to a distal portion of the elongated member such that, when the pulling member is pulled in the axial direction of the elongated member, the pulling member causes the elongated member to bend; a moving member that is connected to the pulling member, the moving member being configured to move so as to pull the pulling member in the axial direction of the elongated member; a rotating member that is operatively connected to the moving member and is rotatable around a longitudinal axis of the elongated member; and a converting part that converts rotation of the rotating member into movement of the moving member.