Hinged Clip Catheter Stabilizer for Convection-Enhanced Delivery
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Solution Overview
Problem
Current methods for maintaining the position of convection-enhanced delivery catheters during targeted drug delivery procedures are inconvenient and unsightly for patients, lacking effective solutions to ensure precise and stable catheter placement within target tissues.
Innovation Solution
A convection-enhanced delivery device with a planar mounting surface and hinged clip system that secures the catheter in place, allowing for precise adjustment and stabilization of the catheter within the target tissue, reducing the vertical profile and enhancing patient convenience.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional methods (bandages, protective shells) are used to maintain catheter position, then the catheter can be secured in place, but the methods are unsightly and inconvenient for the patient
Solution Approach 1:
The device is divided into separate functional components: a base member with mounting surface for attachment to skin, a hinged clip assembly for catheter clamping, and an adapter portion for catheter connection. This segmentation allows each component to be optimized independently - the base member provides stable skin attachment while the hinged clip provides precise catheter positioning, eliminating the need for unsightly bandages while maintaining reliability
Solution Approach 2:
The adapter portion serves as an intermediary between the catheter and the hinged clip mechanism. It includes a receiving channel that guides and secures the catheter adapter, allowing the catheter to be properly positioned and locked by the hinged clip without requiring direct manipulation through the skin. This intermediary structure simplifies the overall system while maintaining both stability and patient convenience
2Adaptability or versatility
If the catheter insertion depth is made adjustable, then the device can accommodate different target tissues, but the device complexity increases
Solution Approach 1:
The hinged clip is designed to be movable between an opened position for catheter insertion and a closed position for securing the catheter at a specific depth. The hinge mechanism provides dynamic adjustment capability, allowing the device to adapt to different catheter lengths and insertion depths without requiring multiple fixed-depth devices or complex adjustment mechanisms. This single dynamic component solves the versatility problem while minimizing complexity
3Reliability
If the hinged clip is moved to closed position to secure catheter, then the catheter position is stabilized, but the vertical profile of the device increases
Solution Approach 1:
The hinged clip mechanism utilizes rotational movement in a different dimension (hinging on a pivot axis) rather than simply extending vertically to secure the catheter. When closed, the clip creates a low-profile configuration where the catheter is clamped horizontally, reducing the vertical profile while maintaining stable catheter positioning through the hinge's mechanical advantage
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
The device ensures stable and precise catheter placement, facilitating extended treatment sessions with reduced risk of catheter disruption, improving the effectiveness and convenience of targeted drug delivery.
Implementation Method 1
The base member further includes a hinged clip that selectively moves between an opened position and a closed position
Implementation Method 2
An inner surface of the receiving channel may include features for adjustably interacting with an outer surface of the catheter adapter
Data Source
AI summary
A delivery device system is provided for assisting a patient and physician in maintaining a depth and position of an inserted catheter within a target tissue. The delivery device includes a base member that is secured to an external surface of the patient. The base member includes an aperture through which a catheter is inserted to access the target tissue. The base member further includes a hinged clip that selectively locks into a closed position to secure the catheter within the delivery device and maintain a desired insertion depth of the catheter within the target tissue. The base member further includes a receiving channel for compatibly and adjustably securing an adapter portion of the catheter in a horizontal orientation.