Guide Wire Shaping Mold for Folded Tip Vessel Protection
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Solution Overview
Problem
Conventional guide wire shaping molds require heating treatment, which poses risks to medical equipment and operators, and can cause damage to blood vessels due to the sharp tip end of the guide wire.
Innovation Solution
A guide wire shaping mold that reduces the annular diameter of the guide wire by plastic deformation without heating treatment, using a wire shaping portion with an annular arrangement and a wire drawing path that retracts the guide wire in a linear direction, allowing for the folding back of the tip end to reduce vessel damage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If heating treatment is used to shape the guide wire, then the guide wire can be shaped into the desired form, but the risk of damage to medical equipment and injury to operators increases
Solution Approach 1:
The patent replaces the thermal field (heating furnace) with a mechanical field (mold with wire shaping portion and wire drawing path). The guide wire is shaped by mechanically retracting it through the wire drawing path while constrained by the wire shaping portion, eliminating the need for heating treatment and associated safety risks.
Solution Approach 2:
The patent changes the shaping parameter from temperature (heating treatment at 400-600°C) to mechanical force (retraction force applied through the wire drawing path). This parameter change allows the guide wire to be shaped at room temperature, eliminating thermal hazards while achieving the desired annular configuration.
2Ease of operation
If the guide wire tip end is sharp, then it is easier to insert into the blood vessel, but it may cause damage to the blood vessel wall
Solution Approach 1:
The patent applies preliminary action by pre-shaping the guide wire tip into an annular configuration with folded-back ends before insertion. The wire shaping portion and wire drawing path are designed to create this protective annular shape in advance, ensuring both easy insertion and blood vessel safety.
Solution Approach 2:
Instead of making the tip sharp and then protecting it, the patent inverts the approach by making the tip annular with folded-back ends from the beginning. The sharp point is transformed into a rounded annular shape that naturally protects the blood vessel while maintaining insertion capability.
3Manufacturing precision
If heating treatment is performed for 30 to 300 minutes at 400 to 600° C., then the guide wire shape is held, but the treatment time and energy consumption increase
Solution Approach 1:
The patent replaces the thermal processing system with a mechanical forming system. The mold structure with wire shaping portion and wire drawing path mechanically forms and holds the guide wire shape immediately, eliminating the 30-300 minute heating treatment requirement and associated energy consumption.
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 effectively reduces damage to blood vessels by folding back the tip end of the guide wire and eliminates the need for heating treatment, making it safer and more efficient for medical use.
Implementation Method 1
reducing an annular diameter of the guide wire by plastic deformation
Data Source
AI summary
To provide a guide wire shaping mold that reduces damage to a blood vessel by folding back a tip end of the guide wire and do not require heating treatment, and a guide wire shaping method using the guide wire shaping mold. A guide wire shaping mold configured to shaping by reducing an annular diameter of the guide wire in which a tip end is annularly arranged, the guide wire shaping mold includes a wire shaping portion configured such that an annular portion of the guide wire is arranged, and a wire drawing path formed in a passage way shape, communicating with the wire shaping portion, and configured to retract the guide wire in a linear direction and in a base end direction.