Surgical Handle Unit with Movable Support for Angle Adjustment
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Solution Overview
Problem
Current surgical devices face challenges in providing an ergonomic handle unit that allows for efficient operation without imposing excessive burden on the user's hand, particularly when adjusting the direction of the handle to treat tissues at various angles.
Innovation Solution
The handle unit incorporates a movable handle with a support section that can be turned in a periaxial direction orthogonal to the extended axis, allowing for adjustment of the angle to reduce user burden and facilitate precise control of the end effector without moving the treatment position.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the handle unit is moved to adjust the angle for treating tissues at various angles, then the adaptability is improved, but the end effector position changes which reduces the ease of operation
Solution Approach 1:
The handle unit is divided into multiple segments: a fixed member, a movable handle, a support section, and multiple coupling sections. This segmentation allows independent movement of the support section while maintaining the end effector's position, resolving the contradiction between angle adjustment and position stability.
Solution Approach 2:
The coupling sections act as intermediaries between the support section and the end effector. These coupling sections (first, second, and third coupling sections) transmit and coordinate movements, enabling the support section to move for angle adjustment while the end effector remains positioned through the mediating action of the coupling mechanisms.
2Ease of operation
If a movable handle is used to operate the end effector, then the ease of operation is improved, but the device complexity increases
Solution Approach 1:
Multiple functional components are merged into an integrated handle unit structure. The fixed member, movable handle, support section, and coupling sections are combined into a single coordinated assembly that provides end effector control while managing structural complexity through unified design.
Solution Approach 2:
The handle unit incorporates dynamic elements including the movable handle that can move along the support section and the coupling sections that enable controlled movement. These dynamic components provide ease of operation for end effector control while the dynamic nature of the mechanisms itself manages the overall system complexity.
Data Source
AI summary
A handle unit for a surgical device that operates an end effector to give various kinds of treatments, includes: a handle main body having a fixed member; a support section that is supported by the same hand of the user and is movable along a turning plane defined by moving closer to or away from the fixed member; a first coupling section that is coupled with the handle main body by moving the support section along the turning plane; a second coupling section that has an extended axis defined by the first coupling section and the support section and is configured to turn the support section in a periaxial direction orthogonal to the extended axis; and a third coupling section that is configured to turn the support section in the periaxial direction of the extended axis.