Surgical Guide Wire Tool Segmented Jaw Mechanism
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Solution Overview
Problem
Existing surgical tools for guiding and removing wires during procedures are complex and difficult to use, especially during delicate surgeries, due to their intricate locking mechanisms.
Innovation Solution
A guide wire positioning tool with a single release member and adjustable biasing force mechanism that allows for easy engagement and disengagement of the wire using one hand, enabling secure holding and manipulation of the wire during surgical procedures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If complex locking mechanisms such as three jaw collets or rotatable chucks are used to securely hold the wire, then the wire holding reliability is improved, but the device complexity increases and ease of operation deteriorates
Solution Approach 1:
The wire engagement mechanism is segmented into distinct functional components: a body, a movable jaw, and an independent spring-loaded release member. This segmentation allows each component to perform its specific function simply, with the release member independently controlling jaw movement without requiring complex coordinated mechanisms.
Solution Approach 2:
The spring-loaded release member provides self-service by automatically returning the jaw to its engaged position after wire insertion or removal. The spring mechanism inherently provides the necessary force to reset the system without requiring additional actuators or complex resetting procedures.
2Reliability
If complex locking mechanisms such as three jaw collets or rotatable chucks are used to securely hold the wire, then the wire holding reliability is improved, but the device complexity increases
Solution Approach 1:
The wire engagement mechanism is segmented into distinct functional components: a body, a movable jaw, and an independent spring-loaded release member. This segmentation allows each component to perform its specific function simply, with the release member independently controlling jaw movement without requiring complex coordinated mechanisms.
Solution Approach 2:
The invention extracts and eliminates unnecessary complex components from traditional locking mechanisms. Instead of using multi-component collets or rotatable chucks, the design uses a single movable jaw controlled by a simple release member, removing redundant parts while maintaining wire holding reliability.
3Ease of operation
If a biased engagement mechanism is used to automatically engage the wire, then the ease of operation is improved, but the ability to securely hold the wire during driving operations may deteriorate
Solution Approach 1:
The engagement mechanism transitions from a static fixed jaw to a dynamic spring-loaded movable jaw system. The jaw can dynamically adjust its position and engagement force based on the wire insertion process, providing automatic engagement during insertion while maintaining secure holding during driving operations through the spring's continuous biasing force.
Solution Approach 2:
The spring constant and pre-compression of the biasing spring can be adjusted to change the engagement force parameters. This allows optimization of the balance between easy engagement (requiring lower force) and secure holding during driving (requiring higher force), with the spring parameters可调 to match different surgical requirements.
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
Facilitates simple and efficient placement and removal of guide wires, allowing for precise control and versatility in various surgical applications with reduced complexity and improved ease of use.
Implementation Method 1
a spring member disposed in engagement with the collet and in contact with one of the end sections to urge the collet toward the central section
Data Source
AI summary
A guide wire placement and removal tool is provided that includes a handle mounted to a shaft connected to a wire engagement mechanism disposed opposite the handle. The mechanism includes a housing aligned with the shaft to enable the wire to pass therethrough, and a moveable engagement member biased into a locking position within the housing to engage a wire positioned therein. The mechanism also includes a release member that can be selectively engaged with the engagement member to disengage the engagement member from the wire to allow the wire to move with regard to the tool. Once the release member is released, the engagement member is biased back into a locking engagement with the wire to securely hold the wire within the tool.