Knotless Suture Anchor Occluding Bone Tissue Openings
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Solution Overview
Problem
Existing suture anchoring systems face challenges in deploying suture anchors into bone and require time-consuming knot-tying procedures, which complicate soft tissue attachment to bone during surgical repairs.
Innovation Solution
A surgical system comprising an outer shaft, a suture anchor with a first and second anchor body, and an elongate inner shaft, where the inner shaft is configured to rotate and move the proximal portion of the first anchor body into the second anchor body, occluding openings to secure the suture between the anchor bodies, eliminating the need for knots.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional suture anchors with knots are used, then soft tissue can be secured to bone, but the procedure becomes time-consuming and cumbersome due to knot-tying requirements
Solution Approach 1:
The invention extracts and eliminates the knot-tying step from the traditional suture anchoring procedure. The suture is passed through the anchor body and tissue without requiring any knot formation, directly resolving the time-consuming nature of traditional methods while maintaining secure attachment through the anchor's mechanical locking mechanism
Solution Approach 2:
The anchor body serves as an intermediary mechanism that replaces the knot function. Instead of using a knot to secure the suture to bone, the anchor body mechanically locks the suture in place, providing the same security function without the time-consuming knot-tying process
2Reliability
If existing suture anchor deployment methods are used, then anchors can be inserted into bone, but the deployment process is challenging and complicated
Solution Approach 1:
The suture anchor system employs a nested structure where the suture passes through the anchor body in a linear sequence. The anchor body is inserted into the bone hole first, then the suture is threaded through the anchor and tissue in one continuous motion, eliminating complex deployment steps and making the procedure more straightforward
Solution Approach 2:
The anchor body is pre-configured with suture passages and locking mechanisms before insertion. The suture is pre-threaded through the anchor body in the correct path, allowing for smooth, uninterrupted deployment into the bone without requiring complex manipulation or adjustment during the procedure
Data Source
AI summary
Methods and systems are provided for securing tissue to bone. A surgical system can include an outer shaft, an elongate inner shaft, and an implantable suture anchor assembly including first and second anchor bodies. The second, more proximal, anchor body has one or more openings extending through a side wall or through opposed side walls thereof. The inner shaft is configured to be received within the outer shaft and through the first and second anchor bodies such that a distal end of the inner shaft protrudes beyond a distal end of the first anchor body. The inner shaft is configured to be removably coupled to the first anchor body such that the inner shaft is configured to be rotated to cause a proximal portion of the first anchor body to move proximally into a lumen extending through the second anchor body and to occlude the opening in the second anchor body.