Variable Stent Coating Jig With Micro-Rough Surface for Anti-Sticking
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Solution Overview
Problem
Existing stent manufacturing processes require multiple coating jigs for different shapes and sizes, leading to high costs and installation space requirements, and the stent membrane sticks to itself due to material characteristics, preventing it from returning to its original shape after storage.
Innovation Solution
A variable coating jig with a surface roughness that can be used for stents of varying shapes and sizes, reducing process costs and eliminating the need for additional processes like silicon powder application, and featuring a micro-rough surface to decrease membrane stickiness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If multiple coating jigs are used for different stent shapes and sizes, then coating precision for various stents is improved, but device complexity and installation space increase
Solution Approach 1:
The coating jig is designed with a universal structure that can accommodate multiple stent shapes and sizes through adjustable components. The jig includes a support structure with movable arms and adjustable clamps that can be repositioned to match different stent geometries, allowing a single device to perform multiple coating functions that previously required separate dedicated jigs for each stent type
Solution Approach 2:
The coating jig incorporates dynamic and adjustable elements including movable support arms, adjustable clamping mechanisms, and reconfigurable positioning systems. These dynamic components allow the jig to adapt its configuration to match different stent shapes and sizes, providing precise coating support for various geometries without requiring multiple fixed dedicated jigs
2Manufacturing precision
If multiple coating jigs are used for different stent shapes and sizes, then coating precision for various stents is improved, but installation space requirements increase
Solution Approach 1:
The coating jig is designed with a universal structure that can accommodate multiple stent shapes and sizes through adjustable components. The jig includes a support structure with movable arms and adjustable clamps that can be repositioned to match different stent geometries, allowing a single device to perform multiple coating functions that previously required separate dedicated jigs for each stent type
Solution Approach 2:
The invention merges the functionality of multiple separate coating jigs into a single integrated device. By combining adjustable support structures, reconfigurable clamping mechanisms, and multi-position positioning systems into one unified coating jig, the design consolidates what would have been multiple space-consuming devices into a single compact unit that maintains coating precision across different stent types
3Productivity
If the stent is stored in the insertion instrument with minimized diameter, then the stent can be transported and stored efficiently, but the membrane contacts itself and sticks due to material characteristics
Solution Approach 1:
The invention addresses membrane stickiness by modifying the membrane material composition or surface properties during the coating process. By adjusting coating parameters, material formulation, or applying surface treatments, the harmful stickiness effect is converted into a beneficial controlled adhesion characteristic that prevents self-contact sticking while maintaining the membrane's functional properties
Solution Approach 2:
The invention changes physical or chemical parameters of the membrane or coating process to reduce stickiness. This may involve modifying coating material composition, adjusting coating thickness, changing drying or curing conditions, or applying surface treatments that alter the membrane's surface energy and reduce adhesive properties, thereby preventing self-contact sticking during storage
4Object-generated harmful factors
If costly silicon powder or oil is applied to the membrane during production, then membrane stickiness is attempted to be reduced, but production cost increases
Solution Approach 1:
The invention enables the membrane to self-regulate its adhesion properties through inherent material characteristics or surface properties achieved during the coating process. By optimizing the coating formulation and process parameters, the membrane develops self-limiting adhesion characteristics that prevent excessive stickiness without requiring additional expensive post-treatment materials like silicon powder or oil
Solution Approach 2:
The invention changes physical or chemical parameters of the membrane or coating process to reduce stickiness. This may involve modifying coating material composition, adjusting coating thickness, changing drying or curing conditions, or applying surface treatments that alter the membrane's surface energy and reduce adhesive properties, thereby preventing self-contact sticking during storage
Data Source
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AI summary
The present invention relates to a coating jig for stents. According to the present invention, a coating jig for stents, having a surface roughness, comprises a jig shaft portion, a first block portion fixedly coupled to a first end of the jig shaft portion, a second block portion opposingly disposed with respect to the first block portion and variably positioned to slide along an outer circumference of the jig shaft portion, and a surface region. A surface roughness may be formed on at least one or more of the jig shaft portion, the first block portion, and the second block portion.