Knotless Interrupted Suture Member With Mechanical Locking
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Solution Overview
Problem
The interrupted suture technique is time-consuming due to the need for individual knots for each stitch, and existing solutions do not adequately address this inefficiency.
Innovation Solution
An interrupted suture member that can be easily fastened and tightened without the use of a knot, combined with a suturing insertion apparatus that facilitates efficient placement of stitches in limited spaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional interrupted suture technique with individual knots is used, then reliable tissue approximation is achieved, but surgical time increases significantly
Solution Approach 1:
The patent extracts and removes the knotting step from the traditional suture process by incorporating a mechanical locking mechanism directly into the suture device. The locking element engages with the suture body to secure the tissue approximation without requiring separate knot tying, thereby eliminating the time-consuming knotting operation while maintaining reliable tissue approximation.
Solution Approach 2:
The suture device performs its own locking function through an integrated mechanical locking mechanism that engages automatically when the suture is tensioned. This self-locking capability eliminates the need for manual knot tying by the surgeon, allowing the device to secure itself in place while maintaining reliable tissue approximation.
2Reliability
If conventional suture devices are used, then tissue approximation can be achieved, but the devices are difficult to manipulate in limited spaces
Solution Approach 1:
The patent segments the suture device into distinct functional components: a flexible suture body for tissue penetration, a compact locking mechanism for securing the suture, and a handle portion for manipulation. This segmentation allows each component to be optimized for its specific function while maintaining overall compactness that facilitates manipulation in limited surgical spaces.
Solution Approach 2:
The locking mechanism is designed to be dynamically engageable and disengageable through a simple actuation mechanism. The locking element can be easily engaged when needed and released when adjustment is required, providing dynamic adaptability that enhances ease of operation in confined spaces while maintaining reliable tissue approximation when locked.
Data Source
AI summary
An interrupted suture member comprises a flexible elongate member, having a first end and an opposite second end, and one or more detents configured for anchoring the suture member in soft tissue. The second end comprises a movable locking member, whereby a force exerted on the tissue may be adjusted by moving the locking member along at least a portion of the suture member. A suture needle comprising a notch for grabbing and holding an interrupted suture or a suture needle being hollow and comprising a slit sufficiently wide and long for easily insertion and guiding of a suture in the suture needle. A suturing insertion device for connecting to a suturing needle consisting two handles or a suturing apparatus comprises an arcuate suturing needle rotatably arranged in an apparatus housing, a cavity for holding a plurality of suture members, and drive means to selectively rotate said suturing needle.