Medical Guide Wire Holder with Deflection and Friction Control
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Solution Overview
Problem
Existing guide wire holders either rely on complex structures with multiple projections or edges that can damage the guide wire due to excessive friction, leading to insecure retention and potential damage, or they fail to provide sufficient friction for secure accommodation.
Innovation Solution
A guide wire holder with a guideway that uses a combination of deflection members and contact surfaces, including a roller device, to exert frictional resistance on the guide wire, ensuring secure and damage-free retention.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple projections or edges are used to hold the guide wire, then the guide wire can be secured, but the structure becomes complex and the guide wire may be damaged due to excessive friction
Solution Approach 1:
The holder structure is segmented into a limited number of strategically positioned projections (at least three) that divide the retention function into discrete engagement points along the guide wire, simplifying the overall structure while maintaining secure retention
Solution Approach 2:
The projections are designed with specific local geometric properties (angular deflection surfaces) at critical contact points to optimize friction and retention, rather than applying uniform complex structures along the entire holder length
2Reliability
If multiple projections or edges are used to hold the guide wire, then the guide wire can be secured, but the guide wire may be damaged due to excessive friction
Solution Approach 1:
The friction parameters are optimized by controlling the geometry and material properties of the projections, ensuring sufficient friction for retention while staying below the threshold that causes guide wire damage or surface degradation
Solution Approach 2:
The friction force, which could potentially damage the guide wire, is converted into a beneficial retaining force by carefully designing the projection geometry to distribute contact stresses and control the magnitude of friction at each engagement point
3Reliability
If a locking slot with edges is used to clamp the guide wire, then the guide wire can be held, but the guide wire may be damaged by excessive friction at the edges
Solution Approach 1:
Instead of using a single locking slot with potentially damaging edge contact, the design inverts the approach by using multiple projections that engage the guide wire at multiple points with distributed contact, reducing stress concentration and friction-induced damage at any single location
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
The solution provides a simpler and more secure guide wire holder structure with increased frictional resistance, preventing displacement and damage to the guide wire, allowing for reliable guidance and reuse.
Implementation Method 1
a frictional effect can be exerted on the guide wire by the guideway provided for receiving it on the relevant guide wire carrier
Implementation Method 2
A guide wire holder with a guideway that uses a combination of deflection members and contact surfaces, including a roller device, to exert frictional resistance on the guide wire
Data Source
Figure 1~2
Figure 3
AI summary
In a guide wire holder (1) for receiving and securing a medical guide wire (4) and for mounting on a medical appliance, in particular on an endoscope, with a mounting part (2) through which the guide wire (4) can be guided, and with a guide wire support (3) which is connected to and protrudes from the mounting part (2) and allows the guide wire (4) to be secured by means of a guide wire receiver, which contains a guide wire deflector (6) that tensions the guide wire (4) and deflects it, at a distance from the mounting part (2), in a direction leading away from its direction of passage through the mounting part (2) and which is followed, at a further distance from the mounting part (2), by an additional guide wire deflector (9), said additional guide wire deflector (9) is formed, at or near the top of the guide wire support (3), with a guide wire contact surface, on which the guide wire (4) can be guided along a guide track, by means of which, in the area of the guide wire contact surface, a frictional resistance can be exerted relative to the guide wire (4) guided over the top of the guide wire support (3).