Magnesium Based Suture Anchor for Rotator Cuff Repair
This advanced suture anchor features an elongated body with distinct proximal and distal ends designed for secure bone fixation. It employs a specialized tapered threading pattern—threads around 1 mm deep with a 3 mm pitch and varying base and outer edge spacing—to minimize stress on surrounding tissue while providing high pull-out strength. Integrated with a transverse eyelet and longitudinal slots with opposed flats, the design facilitates effective suture passage. Manufactured from a magnesium alloy (preferably AZ31), the device boasts a controlled biodegradation profile adjustable through alloying elements and tailored surface treatments, ensuring compatibility with tissue healing timelines and MRI imaging.
Description
What differentiates this technology is its unique combination of robust mechanical performance and customizable biodegradability. Unlike traditional metallic or polymer anchors, it offers superior stiffness and pull-out resistance while promoting osteointegration and osteoinductivity. Its ability to degrade safely post-healing eliminates the need for removal surgery and minimizes image interference during MRI. This blend of precise structural design, advanced material properties, and clinical adaptability positions the device as a significant advancement in soft tissue repair applications.Applications
- Rotator cuff repair- Meniscus tear repair
- Achilles tendon repair
- Hip impingement repair
- Biodegradable fixation device
Advantages
- Delivers superior fixation and mechanical performance with high pull-out strength (up to 400 N) and enhanced stiffness.- Offers controlled biodegradability through customizable alloying and surface treatments, eliminating the need for surgical removal.
- Features an optimized tapered and threaded design that minimizes bone stress and enhances secure anchoring.
- Promotes bone growth and healing through osteointegration and osteoinductivity.
- Ensures MRI compatibility for clear post-operative imaging without interference.
- Provides versatility for various soft tissue repair applications, including rotator cuff repairs and tendon ruptures.