Tendon Anchoring Device with Concave Ribs for Bone Fixation
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Solution Overview
Problem
Current implantable surgical devices for tendon fixation to bone lack mechanical stability and efficiency during and after insertion, and do not optimize the biologic healing environment, often requiring complex suturing and secondary fixation intermediaries.
Innovation Solution
A tendon anchoring device with an elongated body featuring concave and convex side walls, anchor ribs, and support ribs, designed for secure engagement with bone tunnels and tendons, facilitating improved mechanical stability, anchoring strength, and biologic healing by maximizing surface contact, and utilizing a tool engagement surface for efficient insertion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If complex suturing and secondary fixation intermediaries are used, then tendon fixation can be achieved, but device complexity and surgical time increase
Solution Approach 1:
The patent removes the need for complex suturing and secondary fixation intermediaries by integrating the fixation function directly into the anchoring device itself. The device features a body with engagement surfaces that directly interface with both the tendon and bone, eliminating the need for separate sutures or intermediary fixation components.
Solution Approach 2:
The patent combines multiple functions into a single integrated anchoring device: tendon engagement, bone engagement, and fixation. The device body simultaneously engages the tendon through its surface and anchors to the bone through the tunnel, merging what would traditionally require separate suturing and fixation steps into one unified component.
2Reliability
If traditional anchoring devices are used, then tendon fixation is achieved, but mechanical stability during insertion is insufficient
Solution Approach 1:
The patent applies different structural characteristics to different parts of the device body to optimize local functions. The engagement surface has specific geometric features for tendon contact, while the body structure provides rigidity for bone anchoring. This localized optimization of structural properties enhances both tendon fixation and mechanical stability during the insertion process.
3Reliability
If more surface contact between tendon and bone is achieved, then biologic healing is optimized, but device complexity increases
Solution Approach 1:
The patent employs curved or arcuate engagement surfaces on the device body that conform to the natural geometry of the tendon and bone interface. This curvature maximizes the contact surface area between the tendon and bone while maintaining a relatively simple device structure, thereby optimizing the biologic healing environment without significantly increasing device complexity.
Data Source
AI summary
Some embodiments described herein provide an improved tendon anchoring device and method for securing a muscle tendon to a bone. In particular, implementations described herein, the devices and methods are useful for anchoring a tendon to a bone in a patient's arm, including for example, anchoring a bicep tendon to bore formed in the targeted bone of the arm.