CSF Shunt Plug Housing to Prevent Catheter Kinking
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Solution Overview
Problem
Current cerebral spinal fluid shunt systems face issues such as shunt failure, shunt malfunction, and shunt infection, the utilization of catheters passing through the burr hole with the shunt valve positioned between the skull and the scalp results in problems like shunt valve resorption, bone defects, and catheter kinking.
Innovation Solution
A cerebral spinal fluid shunt plug with a housing having a recess and a shunt valve positioned within, comprising a bottom and top housing member with access holes for catheters, and features like bumps, magnets, RFID, or radiographic/acoustic properties for identification.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the shunt valve is positioned between the skull and the scalp, then the shunt system can control CSF flow, but the shunt valve causes bone resorption and creates skull defects
Solution Approach 1:
The shunt valve is extracted from its traditional position between the skull and scalp and repositioned to the ventricular end of the shunt system. This removes the harmful contact between the valve and bone tissue, eliminating bone resorption while preserving the valve's CSF flow control function through the ventricular catheter connection
2Ease of operation
If the ventricular catheter passes through the burr hole, then the catheter can access the ventricular space, but the catheter is susceptible to kinks
Solution Approach 1:
The shunt valve is pre-positioned within the ventricular catheter before the catheter is inserted into the ventricle. This preliminary positioning provides internal support and structural guidance that prevents kinking during insertion and maintains catheter shape stability throughout operation
3Ease of operation
If the shunt valve and ventricular catheter are exposed, then they can be accessed for adjustment, but they are susceptible to movement
Solution Approach 1:
The shunt valve is nested within the ventricular catheter, which is itself positioned within the ventricle. This nested configuration provides inherent stability and positioning, eliminating the movement problems associated with exposed valves while maintaining access capability through the catheter structure
Data Source
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AI summary
A cerebral spinal fluid shunt plug includes a shunt plug housing having a recess formed therein and a shunt valve shaped and dimensioned for positioning within the recess of the shunt plug housing.