Rotating Suture Anchor with Top Locking Mechanism
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Solution Overview
Problem
Existing suture anchors in orthopedic surgical procedures often result in misalignment and uneven stress on soft tissues due to a lack of rotational mobility, leading to potential tearing or loosening of the repair, as they cannot adjust tension in line with the soft tissue connection.
Innovation Solution
A rotatable top locking suture anchor device with a central pin, eyelet pin, and rotatable ring that allows for adjustable tension and rotation of the suture, enabling secure attachment with or without knots, and the ability to attach and detach sutures multiple times during procedures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a traditional suture anchor is used, then the suture can be securely anchored to bone, but the suture cannot rotate to align with soft tissue, causing misalignment and uneven stress
Solution Approach 1:
The patent applies the dynamics principle by making the suture anchor rotatable about its longitudinal axis. The eyelet pin and rotating ring can rotate relative to the anchor body, allowing the suture to dynamically align with the soft tissue connection after implantation. This rotational capability transforms a static anchor into a dynamic system that can adapt to tissue alignment requirements, resolving the contradiction between secure anchoring and proper alignment.
2Reliability
If the suture is secured tightly in the anchor, then retention is improved, but the suture cannot rotate or adjust tension, leading to potential tearing
Solution Approach 1:
The dynamic principle is applied through the rotatable eyelet pin and rotating ring mechanism that allows the suture to rotate and adjust its tension after being secured in the anchor. The suture is retained by the anchor body while the eyelet pin can rotate about the longitudinal axis, providing both retention and adaptability simultaneously.
Solution Approach 2:
The patent segments the suture anchor system into multiple rotatable components: the eyelet pin that can rotate within the anchor body, and the rotating ring that can rotate relative to the eyelet pin. This segmentation allows different parts to perform different functions - the anchor body provides retention while the segmented rotating components provide tension adjustment and alignment capability.
3Ease of operation
If a rotatable mechanism is added to the suture anchor, then alignment and tension adjustment are improved, but the device complexity increases
Solution Approach 1:
The patent merges multiple functions into integrated components. The eyelet pin combines the functions of suture guidance, rotation capability, and tension adjustment in a single component. The rotating ring integrates with the eyelet pin to provide additional rotation and alignment capability. This merging reduces the number of separate components compared to having distinct elements for each function, thereby managing device complexity while achieving the desired alignment and tension adjustment capabilities.
Data Source
AI summary
A top locking rotatable suture anchor device secures one or more sutures with the suture anchor device, installed within a bone at a surgical treatment site, providing rotation of the suture while secured within the suture anchor device and providing adjustment to the tension of the suture during the surgical procedure, the suture anchor device including a delivery tool cooperating with the suture device to conduct the installation of the suture anchor device and tensioning of the suture within suture anchor device.