Endoscope Packaging Tray for Guide Wire Coating Adhesion
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Solution Overview
Problem
Hydrophilic lubrication coatings on guide wires tend to stick to the inner surfaces of multi-lumen tubes or other objects during storage or sterilization, posing a challenge in maintaining their effectiveness and preventing adhesion.
Innovation Solution
A packaging material with a tray design that holds the sheath and guide wire in a predetermined positional relationship, where the coated region of the guide wire is exposed and held linearly, using a pre-curved holding part and wire storage part to minimize contact with the tray surfaces, thereby reducing the likelihood of coating adhesion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If hydrophilic lubrication coating is applied to the guide wire tip to enhance insertability, then the guide wire can penetrate living body tissue more easily, but the coating may stick to the inner surface of the multi-lumen tube or other objects during storage or sterilization
Solution Approach 1:
The packaging tray is divided into distinct functional zones: a sheath holding part with a curved surface for holding the sheath, and a wire storage part with a linear bottom surface for holding the guide wire. This segmentation separates the storage functions to prevent contact between the coated guide wire and surfaces that could cause adhesion, while still allowing the coating to remain intact for insertability.
Solution Approach 2:
Different portions of the packaging tray are designed with different surface characteristics: the sheath holding part has a curved surface that accommodates the sheath's shape, while the wire storage part has a linear bottom surface that keeps the guide wire straight and minimizes contact points. This local differentiation optimizes each zone's function while preventing coating adhesion.
2Volume of moving object
If the guide wire is stored coiled or bent to fit compact packaging, then space efficiency is improved, but the hydrophilic coating may stick to the packaging surface and compromise its lubrication properties
Solution Approach 1:
The sheath holding part features a curved bottom surface that matches the natural curvature of the sheath, allowing it to be held in a compact yet non-contacting manner. The guide wire, with its smaller diameter and different structural requirements, is held linearly on a flat surface, optimizing space while preventing adhesion.
Solution Approach 2:
The packaging tray utilizes a three-dimensional configuration with vertically arranged components: the sheath holding part and wire storage part are positioned at different vertical levels and orientations. This dimensional arrangement allows compact packaging while maintaining the guide wire in a straight, non-contacting position that prevents coating adhesion.
3Adaptability or versatility
If the sheath and guide wire are packaged separately to allow independent storage, then flexibility and adaptability are improved, but the time and labor required for assembly during use increase
Solution Approach 1:
The packaging tray merges the storage functions of the sheath and guide wire into a single integrated structure with vertically arranged holding parts. The sheath holding part and wire storage part are positioned to facilitate easy assembly, allowing the guide wire to be quickly inserted into the sheath during use while maintaining the benefits of separate, flexible storage.
Solution Approach 2:
The sheath and guide wire are pre-positioned in their respective holding parts during packaging, with the guide wire's distal end already oriented toward the sheath's lumen. This preliminary arrangement reduces the assembly time during use, as the operator only needs to complete the insertion without complex positioning or searching.
Data Source
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AI summary
An endoscopic treatment system includes: an endoscopic treatment device having an operating unit which has a distal end and a proximal end and a sheath in which a lumen to be connected to the distal end of the operating unit is formed; and a guide wire which has a coated region applied with coating at a distal end and is inserted into the lumen of the sheath. A packaging material has a tray which maintains a predetermined position relationship between the sheath and the guide wire and holds the distal end side of the sheath in a state where the coated region of the guide wire is exposed from the distal end of the sheath. The tray is located on the distal end side of the sheath to a sheath holding portion, which holds the sheath, and has a wire accommodating portion which holds the full length of the coated region of the guide wire exposed from the distal end of the sheath in a linear form.