Barbed Knotless Suture with Truncated Supporter for Secure Tissue Fixation
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Solution Overview
Problem
Conventional sutures require knotting processes that are time-consuming and prone to untightening, which can compromise the stability and firmness of tissue fixation during surgical operations.
Innovation Solution
A suture with a truncated conical or pyramid-shaped suture supporter at one end, featuring a communication hole and cut portions or gaps to increase tissue contact area, along with barbs inclined at an acute angle, allowing for secure tissue fixation without the need for knotting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional suture with knotting process is used, then the suture can be tied and secured, but the operation time increases and there is a risk of untightening
Solution Approach 1:
The patent removes the knotting process entirely from the suturing system by using a suture supporter with barbs that mechanically engage with tissue to prevent slippage. The barbed suture supporter extracts the need for knots while maintaining suture stability through its barb structure that anchors into the tissue.
Solution Approach 2:
The suture supporter with barbs provides self-securing functionality by automatically engaging with the tissue through its barb structure. The barbs are designed to penetrate and anchor into the tissue, creating a self-locking mechanism that eliminates the need for external knotting actions by the surgeon.
2Reliability
If a suture with barbs is used, then the suture does not slip and is not easily untied, but the structure becomes more complex
Solution Approach 1:
The suture supporter is segmented into multiple discrete barbs along its length, with each barb acting as an independent anchoring element. This segmentation allows the suture to provide anti-slip capability through multiple small engagement points rather than a single complex structure.
Solution Approach 2:
The barbs are strategically positioned and oriented at specific angles along the suture supporter to provide localized engagement with the tissue. Each barb has a specific geometry and orientation optimized for penetrating and anchoring into tissue, creating local quality variations that enhance overall reliability without requiring global structural complexity.
3Reliability
If the suture supporter has cut portions or gaps, then the tissue contact area increases and fixation ability improves, but the manufacturing precision requirements increase
Solution Approach 1:
The cut portions and gaps are pre-formed in the suture supporter during manufacturing to create predetermined tissue engagement zones. These preliminary structural features are designed to maximize tissue contact area and fixation ability while establishing consistent geometric parameters that can be reliably manufactured.
Solution Approach 2:
The suture supporter utilizes parameter variations in the cut portions and gaps, such as varying depths, widths, and spacing, to optimize tissue contact area. By carefully controlling these geometric parameters within manufacturing capabilities, the design achieves enhanced fixation ability without requiring impossible precision levels.
Data Source
AI summary
The present invention relates to a suture which is firmly maintained and fixed to an operation site to stably sustain suturing or lifting effects for a long time. More specifically, the present invention provides a suture having a conic or pyramidal shape with a cut top, wherein a suture supporter comprising a communication hole penetrating the both ends is provided at one end. The suture support can have one or more portions which are cut vertically from a lower end at a lower end portion having a larger diameter between the both ends, or a part of the lower end can be removed so as to form one or more gaps formed from the end at a wall of the end portion.