Knotless Suture Anchor Frangible Proximal Member
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current surgical methods for transosseous attachment, such as knot-based suture anchors, can be cumbersome and require complex knot-tying techniques, which may complicate the attachment of soft tissues to bones, especially in minimally invasive procedures.
Innovation Solution
A knotless suture anchor design featuring a frangible connection between the anchor body and a proximal member, with a suture locking mechanism that secures the suture within the anchor body without the need for knots, allowing for easier insertion and tensioning of sutures through a series of openings and slots.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If knot-based suture anchors are used for transosseous attachment, then the suture can be securely anchored to bone, but the surgical procedure becomes cumbersome and complex due to required knot-tying techniques
Solution Approach 1:
The invention extracts and eliminates the knot from the suture anchoring system. The suture is directly integrated into the anchor body through a locking mechanism that secures the suture within internal passages and openings, removing the need for separate knot-tying operations while maintaining secure anchoring to bone.
Solution Approach 2:
The invention merges the suture securing function directly into the anchor body structure. The anchor body incorporates internal passages, openings, and locking mechanisms that integrate suture retention and bone anchoring into a single unified component, eliminating the need for separate knot-tying steps.
2Reliability
If knot-based suture anchors are used, then secure soft tissue attachment is achieved, but procedural time and complexity increase
Solution Approach 1:
The suture is pre-positioned and pre-secured within the anchor body structure before implantation. The locking mechanism is预先 configured to engage the suture, so that when the anchor is inserted into bone, the suture is already secured and ready for immediate soft tissue attachment without requiring time-consuming knot-tying operations.
3Ease of operation
If a frangible connection is used between anchor body and proximal member, then the proximal member can be easily separated after suture insertion, but the connection must be strong enough to hold during insertion
Solution Approach 1:
The frangible connection is designed with dynamic strength characteristics - it maintains high strength during the insertion phase to securely hold the suture and anchor assembly, then transitions to easy separability after insertion when the suture is secured. The connection strength changes based on the operational phase, being strong during insertion and weak during removal.
Data Source
AI summary
A knotless suture anchor may include an anchor body with a proximal end, a distal end, an interior longitudinal passageway, a proximal opening communicating with the longitudinal passageway nearer the proximal end, and a distal opening communicating with the longitudinal passageway nearer the distal end. A first suture portion extends within the longitudinal passageway between the proximal opening and the distal opening, a second suture portion is contiguous to the first portion and extending out of the anchor body, a third suture portion is contiguous to the second portion and extends within the longitudinal passageway proximally to distally, and a fourth suture portion is contiguous to the third portion, extending along the exterior surface distally to proximally. A proximal member may be joined to the anchor body by a frangible connection and may have a proximal member axial passage containing an interference member coaxially aligned with the longitudinal passageway.