Labral Graft Preparation Device for Anatomical Shaping
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Solution Overview
Problem
Current methods for repairing damaged acetabular or glenoidal labrum in ball and socket joints, such as the hip or shoulder, face challenges in providing the correct anatomical shape for grafts and ease of installation, leading to suboptimal joint reconstruction outcomes.
Innovation Solution
A system for installing a labral graft that includes immovably coupling anchors to the bone, using sutures to manipulate and secure the graft, and employing a graft installation funnel and preparation device to mimic the natural shape of the labrum, facilitating correct positioning and anchoring of the graft.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If traditional graft installation methods are used, then the surgical procedure can be completed, but the graft cannot achieve proper anatomical shape and positioning
Solution Approach 1:
The graft is pre-shaped using a preparation device with a longitudinal recess that mimics the natural labrum anatomy before implantation. This preliminary shaping ensures the graft has the correct anatomical configuration prior to insertion, resolving the contradiction between achieving precise anatomical shape and maintaining ease of installation.
Solution Approach 2:
A graft installation funnel is introduced as an intermediary tool to facilitate graft placement. The funnel guides the pre-shaped graft into the surgical site and allows for proper positioning, making the installation process easier while maintaining anatomical precision.
2Reliability
If anchors are used to secure the graft, then the graft can be fixed to the bone, but the installation process becomes more complex
Solution Approach 1:
The anchor insertion and graft fixation processes are merged into a single integrated step. The anchors are inserted and the graft is secured through the same surgical approach, reducing the overall complexity of the installation system while maintaining reliable graft fixation.
3Manufacturing precision
If the graft is manually shaped, then anatomical accuracy can be achieved, but the surgical time increases
Solution Approach 1:
The graft is pre-shaped in the operating room using a preparation device before implantation. This preliminary action ensures anatomical accuracy is achieved quickly during surgery rather than requiring time-consuming manual shaping during the procedure, thereby reducing overall surgical time.
Data Source
AI summary
A system for installing a labral graft includes placing anchors into a bone thereby immovably coupling the anchors to the bone, coupling a suture to at least one of the anchors, coupling sutures to a graft, using the sutures coupled to the graft to manipulate the graft into position and tightening the sutures, thereby coupling the graft to the bone. Additionally, the system also includes a graft installation funnel having a tapered funnel body and an annular space within the tapered funnel body that is capable of retaining a graft and easing installation of the graft. Further, the system for installing a labral graft includes a graft preparation device including a block with a longitudinal recess, the longitudinal recess having a cross section that mimics the natural shape of a tissue that is to be replaced by a graft, and suture slots.