Prosthetic Device Adhesive Pods for Secure Tissue Fixation
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Solution Overview
Problem
Existing methods for attaching prosthetic devices to tissues during soft tissue repair face challenges such as difficulty in inserting and manipulating meshes due to pre-applied adhesives, inconsistent adhesive deployment, and varying thickness of meshes, which can lead to compromised fixation strength.
Innovation Solution
The use of adhesive-filled pods pre-placed on one side of the mesh, which are selectively openable to release adhesive after mesh placement, ensuring consistent adhesive application and optimal surface contact, with markings on the mesh to aid in orientation and deployment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If adhesive is pre-applied to the mesh before placement, then fixation strength is improved, but insertion and manipulation of the mesh becomes difficult
Solution Approach 1:
The adhesive is pre-applied to the mesh in the form of pods during manufacturing, but the actual release of adhesive occurs only after placement in the surgical site through selective opening of pods. This preliminary preparation allows the mesh to be manipulated freely during insertion while ensuring adhesive fixation is activated at the correct moment and location.
Solution Approach 2:
The pod acts as an intermediary carrier between the adhesive and the mesh surface. Instead of having the adhesive directly on the mesh surface which would prevent manipulation, the pod encapsulates the adhesive and can be selectively opened to release it only where needed, allowing free manipulation during insertion.
2Reliability
If adhesive is applied to ensure consistent fixation, then fixation reliability is improved, but the complexity of the device increases
Solution Approach 1:
The adhesive system is segmented into multiple discrete pods distributed across the mesh surface rather than a single continuous adhesive layer. This segmentation allows for consistent fixation at multiple locations while keeping each individual pod simple in structure, actually reducing overall device complexity while improving reliability.
Solution Approach 2:
The pods are designed to be self-opening through selective application of force or pressure during the surgical procedure, eliminating the need for complex external opening mechanisms. The pods automatically release their adhesive contents when activated, simplifying the device while ensuring reliable and consistent fixation.
3Adaptability or versatility
If adhesive depth is varied to accommodate different mesh thicknesses, then adaptability is improved, but adhesive deployment consistency deteriorates
Solution Approach 1:
The pod structure is designed with dynamic characteristics that allow it to automatically adjust to different mesh thicknesses. The pod's geometry and material properties enable it to compress or expand as needed, maintaining consistent adhesive depth and deployment regardless of the underlying mesh thickness, thereby achieving both adaptability and precision.
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
This approach facilitates easier and more consistent attachment of prosthetic devices to tissues, maintaining a constant adhesive depth and promoting optimal surface contact, thereby enhancing the strength and reliability of the fixation.
Implementation Method 1
one or more adhesive-filled pods disposed on the first side of the body, the one or more adhesive filled pods being selectively openable to supply an adhesive
Data Source
AI summary
An implantable prosthesis and a method of attaching the prosthesis to a tissue structure disclosed. The prosthesis includes a body having a first side arranged to face the tissue structure having a defect and second side opposite the first side. One or more adhesive-filled pods are disposed on the first side of the body and selectively openable to supply an adhesive in between the tissue structure and the first side of the prosthesis body after the prosthesis body is positioned relative to the defect. The pods may be pierced, punctured, broken, and/or ruptured to supply the adhesive. A deployment device having a piercer may be used to puncture the pods.