Arthroscopic Biceps Tenodesis Fixation Device
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Solution Overview
Problem
Current arthroscopic biceps tenodesis repair devices are technically demanding, limiting their use to only experienced surgeons due to the need for precise tendon reinsertion into a drilled bone hole, which is not feasible for all patients.
Innovation Solution
A fixation device with a base portion, legs, and a groove, along with a cannulated interference device with threads, allows for simple and reproducible tissue fixation by preparing a bone hole, inserting soft tissue, and applying tension before fixing it to the bone using rotary advancement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If current arthroscopic biceps tenodesis repair devices are used, then immediate fixation of the tendon to the bone is achieved, but the procedure becomes technically demanding and precludes some patients from being candidates
Solution Approach 1:
The device is divided into distinct functional components: a fixation member with legs for bone engagement, a separate tendon engagement portion, and a delivery system. This segmentation allows each component to be optimized for its specific function while simplifying the overall implantation procedure through modular assembly.
Solution Approach 2:
A delivery device acts as an intermediary tool that guides the fixation device through the bone and positions the tendon. This intermediary mechanism eliminates the need for complex manual manipulation by the surgeon, making the procedure more accessible to less experienced practitioners while maintaining reliable fixation.
2Reliability
If tendon reinsertion is performed through a portal, then fixation is achieved, but the procedure becomes very technically demanding
Solution Approach 1:
The delivery device combines multiple functions into a single instrument: it creates the bone tunnel, guides the fixation member, and positions the tendon simultaneously. This merging of functions into one integrated tool simplifies the procedure compared to using separate instruments for each step.
Solution Approach 2:
The delivery device is pre-configured with the fixation member and tendon in the correct positions before insertion. This preliminary preparation ensures proper alignment and positioning during implantation, eliminating the need for complex intraoperative adjustments and reducing the technical skill required.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution enables both beginner and experienced surgeons to perform arthroscopic biceps repair with ease, making the procedure simpler, cost-effective, and accessible to a broader range of surgeons, including those performing open shoulder surgeries.
Implementation Method 1
The interference device includes threads on an outer surface of the interference device. In an embodiment, the interference device is configured for rotary advancement into the hole.
Implementation Method 2
The fixation device includes a base portion having a first leg, a second leg, and a groove located between the first and second legs... placing soft tissue into the hole, via the fixation device, such that the soft tissue is located within the groove of the fixation device
Implementation Method 3
the method further includes applying tension to the soft tissue prior to inserting the interference device into the hole
Data Source
AI summary
The present disclosure relates to a fixation device. The fixation device includes a base portion having a first leg, a second leg, and a groove located between the first and second legs, and a top portion extending from the base portion. A method of tissue repair and a kit are also disclosed.