Coiled Tissue Wrap Closure for Suture-Free Nerve Repair
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Solution Overview
Problem
Current methods for closing and securing medical tissue wraps around damaged anatomical structures, such as nerve or tendon lesions, are cumbersome, anatomically impossible, and complicate surgical procedures, often requiring additional layers or sutures that impair tissue regeneration and increase procedural time.
Innovation Solution
A medical tissue wrap with a coiled wall design featuring a circumferential inner and outer end portion with a discontinuous radial spacing, allowing for improved closure and secure retention of the anatomical structure without direct contact, facilitated by a circumferential gap and optional adhesive application.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional closure methods (additional layers or sutures) are used to secure the medical tissue wrap, then the wrap closure is achieved, but procedural time increases and tissue regeneration is impaired
Solution Approach 1:
The medical tissue wrap's own wall structure provides the closure function through its discontinuous radial spacing configuration. The circumferential outer end portion and circumferential inner end portion of the wall are radially spaced apart, creating an interference-fit mechanism that secures the wrap to the anatomical structure without requiring external fastening elements. This self-securing mechanism eliminates the need for additional layers or sutures, thereby reducing procedural time while maintaining reliable wrap closure.
2Reliability
If traditional closure methods (additional layers or sutures) are used to secure the medical tissue wrap, then the wrap closure is achieved, but device complexity increases
Solution Approach 1:
The invention extracts the closure function from external components (additional layers, sutures, fasteners) and integrates it directly into the wall structure of the medical tissue wrap. The discontinuous radial spacing of the wall's end portions creates an inherent self-securing mechanism. This integration simplifies the overall device by eliminating separate closure components, reducing device complexity while maintaining reliable wrap closure security.
3Reliability
If the wall end portions are in direct contact to ensure closure, then closure security is improved, but tissue regeneration is impaired and procedural complexity increases
Solution Approach 1:
The wall structure implements local quality variation through its discontinuous radial spacing configuration. The circumferential outer end portion and circumferential inner end portion are radially spaced apart at specific locations, creating localized interference-fit zones that provide closure security. This spaced configuration avoids continuous direct contact between wall layers, thereby preventing tissue damage while maintaining adequate closure security through the distributed spacing pattern.
4Stability of the object's composition
If a continuous wall structure is used, then structural stability is improved, but closure security and tissue regeneration are compromised
Solution Approach 1:
The wall structure is segmented into distinct portions with specific radial spacing relationships. The circumferential outer end portion and circumferential inner end portion are radially spaced apart, creating discrete segments that provide closure functionality. This segmentation maintains overall wall structural stability while enabling secure closure through the spaced configuration, avoiding the need for continuous direct contact between wall layers.
Data Source
AI summary
A medical tissue wrap, for an internal anatomical structure of a mammal is formed by a coiled wall having a circumferential inner end portion and a circumferential outer end portion extending around and overlapping the circumferential inner end portion. The wall thereby defines a longitudinal through-hole for accommodating a portion of the anatomical structure. The circumferential outer end portion is radially spaced-apart from the circumferential inner end portion by a discontinuous spacing in the circumferential direction. The tissue wrap comprises a structural outer surface modification at opposing longitudinal end portions of its wall.