Burr Hole Shunt Plug Structure to Prevent Valve Migration
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current cerebral spinal fluid shunt systems face issues such as shunt valve migration, catheter kinking, and cranial deformity due to the placement of shunt valves and catheters through the burr hole, leading to complications like infection and bone resorption.
Innovation Solution
A cerebral spinal fluid shunt plug with a shunt plug housing that securely houses the shunt valve and catheters, featuring a recess and access holes for catheter connection, and a transparent or translucent window for imaging and monitoring, minimizing mobility and kinking, and allowing for precise placement without cranial deformity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the shunt valve and catheters are placed through the burr hole, then the shunt system can be installed, but the shunt valve may migrate and the catheter may kink
Solution Approach 1:
The shunt system is divided into separate components: the burr hole plug with integrated shunt valve, the ventricular catheter, and the peritoneal catheter. The plug is inserted into the burr hole as a separate unit, allowing the shunt valve to be secured within the plug structure rather than relying on the valve's own stability in the burr hole.
Solution Approach 2:
The burr hole plug acts as an intermediary device between the skull and the shunt valve. It provides a stable mounting structure that secures the shunt valve and catheters, preventing direct contact between the valve and the burr hole edges that would cause migration or kinking.
2Ease of operation
If the shunt valve is positioned between the skull and the scalp, then the shunt system functions, but bone resorption and cranial deformity occur
Solution Approach 1:
The shunt valve is extracted from direct contact with the bone and scalp interface. Instead of positioning the valve between the skull and scalp as in traditional systems, the valve is integrated into the burr hole plug that is inserted into the burr hole, removing the source of pressure that causes bone resorption and cranial deformity.
3Difficulty of detecting and measuring
If a transparent window is added to the shunt plug housing, then imaging and monitoring are facilitated, but the housing complexity increases
Solution Approach 1:
The burr hole plug housing is designed with multi-functionality: it secures the shunt valve, provides structural support, and includes a transparent window for imaging. This consolidates multiple functions into a single component, reducing overall system complexity despite adding the window feature.
Solution Approach 2:
The transparent window is integrated directly into the burr hole plug housing structure, merging the imaging access function with the structural housing. This eliminates the need for separate imaging access components and reduces the overall complexity of the system.
Data Source
AI summary
A cerebral spinal fluid shunt plug includes a shunt plug housing having a shunt valve recess formed therein and a window recess with an access hole. The cerebral spinal fluid shunt plug also includes a shunt valve shaped and dimensioned for positioning within the shunt valve recess of the shunt plug housing and a lucent disk shaped and dimensioned for the passage through the central access hole of the shunt plug housing. In another embodiment, a cerebral spinal fluid shunt plug includes a shunt plug housing having a shunt valve recess formed therein and an intracranial monitoring device recess with an access hole. A shunt valve is positioned within the shunt valve recess of the shunt plug housing and an intracranial monitoring device is passed through the central access hole of the shunt plug housing.