Biocompatible Mesh for Shunt Migration Prevention
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Solution Overview
Problem
Current hydrocephalus shunt systems face issues with internal migration of drainage lumens and components, leading to non-optimal CSF reabsorption and interference with bodily functions, necessitating secure attachment to internal organs to prevent migration and ensure proper function across varying patient positions.
Innovation Solution
A biocompatible mesh or fabric is surgically affixed to internal bodily surfaces using sutures, tacks, screws, tissue infusion, or biological growth to securely attach shunt components, such as drainage lumens and valves, preventing migration and ensuring optimal CSF reabsorption by facilitating tissue integration and mechanical/electrical attachment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If shunt drainage lumens are left mobile within the body cavity, then the device is easier to implant and less complex, but the drainage lumen migrates internally causing non-optimal CSF reabsorption and interference with bodily functions
Solution Approach 1:
The drainage lumen is pre-affixed to a biocompatible material or mesh fabric before implantation, allowing the attachment structure to be prepared in advance. This preliminary attachment ensures the lumen will remain in the desired position once implanted, preventing migration while maintaining ease of implantation procedure.
Solution Approach 2:
A biocompatible material or mesh fabric serves as an intermediary between the drainage lumen and the peritoneal cavity. This intermediate structure allows the lumen to be securely attached to the peritoneum while maintaining biocompatibility and preventing direct contact that could cause migration or interference with bodily functions.
2Reliability
If shunt drainage lumens are securely affixed to internal organs, then migration is prevented and CSF reabsorption is optimized, but the attachment process becomes more complex and requires additional surgical steps
Solution Approach 1:
The attachment of the drainage lumen to the peritoneum is merged with the shunt implantation procedure itself. The biocompatible material or mesh fabric is integrated into the shunt system, allowing both the drainage lumen attachment and the shunt implantation to be accomplished in a single surgical procedure, thereby reducing overall complexity.
Solution Approach 2:
A porous biocompatible material or mesh fabric is used for attachment, which allows tissue ingrowth through its porous structure. This provides secure long-term fixation of the drainage lumen to the peritoneum while maintaining biocompatibility. The porous structure enables biological integration without requiring complex mechanical fastening systems.
3Reliability
If shunt components are attached to biological surfaces, then migration is prevented, but tissue rejection or inflammatory response may occur
Solution Approach 1:
A biocompatible material or mesh fabric is used as the attachment medium, which creates an inert, non-reactive environment between the shunt components and the biological tissue. This inert barrier prevents direct contact that could trigger immune response or tissue rejection, while still allowing secure attachment and tissue ingrowth through the porous structure.
Data Source
AI summary
A device and means of attaching an implantable drainage lumen, catheter, or other device to an internal bodily surface, such as the peritoneum, is generally indicated by a biocompatible material or mesh fabric connected to a lumen, catheter, or other mechanical or electrical device whereby the biocompatible material or mesh may be surgically affixed to a tissue or organ by means of sutures, tacks, screws, tissue infusion or adhesion or other means in order to secure an internal drainage, or mechanical/electrical system or component for the prevention of migration or non-optimal CSF reabsorption after installation.