Eight-Dimensional Barbed Surgical Thread for Tissue Engagement
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Solution Overview
Problem
Existing barbed surgical threads are limited in their ability to engage tissue effectively, leading to suboptimal results in cosmetic procedures such as skin lifting and collagen stimulation.
Innovation Solution
An eight-dimensional barbed surgical thread design featuring radially adjacent, obliquely extending first and second barbs, which enhances tissue engagement and stimulates collagen production through multiple points of contact, improving lift and skin texture.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional barbed surgical threads are used, then the structure is simple and easy to manufacture, but the tissue engagement ability is insufficient leading to suboptimal cosmetic results
Solution Approach 1:
The patent transitions from traditional two-dimensional barbs to an eight-dimensional configuration where barbs extend radially in multiple directions (first barbs obliquely extending, second barbs positioned closer to proximal end) around the central core circumference. This multi-dimensional barb arrangement dramatically increases tissue engagement points and effectiveness while maintaining the fundamental thread structure for manufacturability
Solution Approach 2:
The thread is segmented into distinct barb regions: eight first barbs positioned around the circumference obliquely extending from the central core, and eight second barbs positioned closer to the proximal end. This segmentation allows each barb group to perform specific functions (engagement and anchoring) while maintaining overall structural integrity and manufacturability
2Quantity of substance
If traditional barbed threads are used, then the manufacturing process is simple, but the number of tissue contact points is limited reducing collagen stimulation effectiveness
Solution Approach 1:
By arranging barbs in eight dimensions around the central core circumference rather than simple linear or planar configurations, the patent maximizes the number of tissue contact points (eight first barbs + eight second barbs) without proportionally increasing manufacturing complexity. The radial symmetry enables efficient manufacturing through rotational molding or extrusion processes
3Duration of action of stationary object
If simple barbed threads are used, then the device is easy to operate, but the lift sustainability is insufficient
Solution Approach 1:
The thread is divided into functional segments: first barbs for engagement and lifting, second barbs for anchoring closer to the proximal end. This segmentation provides sustainable lift through distributed tissue contact points while the oblique extension angles are designed to facilitate smooth insertion through minimal tissue resistance
Solution Approach 2:
Different barb regions have optimized local properties: first barbs obliquely extend for optimal engagement and lift, while second barbs are positioned closer to the proximal end for secure anchoring. Each region's geometry and positioning are locally optimized for its specific function while maintaining overall operational ease
Data Source
AI summary
An eight-dimensional barbed surgical thread including a central core and eight first barbs. The central core has a circumference, a proximal end and a distal end that is opposite the proximal end. The eight first barbs are positioned around the circumference of the central core so that the first barbs are radially adjacent to each other and obliquely extend from the central core.