Universal Cannula Device with Multi-Directional Membrane
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Solution Overview
Problem
Existing infusion sets are limited by their design, requiring specific connectors and base parts, which restrict flexibility in use and necessitate replacement when changing between different types or orientations, leading to increased production costs and reduced patient convenience.
Innovation Solution
A universal cannula device with a housing and membrane that allows for connection from multiple directions, enabling compatibility with various infusion sets and allowing different connectors and base parts to be used interchangeably, while enabling connection from different angles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a traditional infusion set uses a fixed design with specific connectors and base parts, then the device structure is simple and reliable, but the adaptability is limited and requires replacement when changing between different types or orientations
Solution Approach 1:
The cannula device incorporates a universal membrane structure with multiple receiving directions that can accommodate different types of connectors (inserter needles, piercing members, connectors from various angles). This multi-functional design allows a single base part to work with multiple connector types and orientations, eliminating the need for separate specialized components for each connection type while maintaining structural simplicity.
2Adaptability or versatility
If a universal cannula device with multiple receiving directions is designed, then the adaptability and versatility are improved, but the device complexity increases
Solution Approach 1:
The invention uses a flexible membrane as the core component to create multiple receiving directions. The membrane's flexibility allows it to be punctured from different angles and orientations while maintaining a simple overall device structure. This thin film approach enables versatility without requiring complex mechanical structures for each possible connection direction.
3Ease of operation
If different types of connectors and base parts are designed for specific orientations, then the connection reliability is high, but the ease of operation is reduced and requires substitution when changing orientations
Solution Approach 1:
The universal membrane structure serves as a multi-functional interface that can receive connectors from multiple directions (0°, 45°, 90°, 135°). This allows patients to connect infusion sets from different orientations using the same base part, improving ease of operation while maintaining reliable connections through the membrane's consistent puncturing mechanism across all angles.
4Ease of manufacture
If specific guiding and locking members are used for each infusion set type, then the manufacturing precision is high, but the ease of manufacture is reduced and production costs increase
Solution Approach 1:
The cannula device uses a universal membrane design that eliminates the need for separate guiding and locking members for each connector type. The membrane itself serves as the guiding structure through its geometric configuration, and the locking mechanism is simplified to accommodate all connector types. This reduces the number of precision-critical components while maintaining adequate manufacturing precision through the membrane's inherent structural properties.
Data Source
AI summary
A cannula device for infusion sets is provided. The cannula device includes a housing and at least one membrane mounted to the housing and adapted for receiving a piercing member of a connector. The cannula device further includes a cannula mounted to the housing. The cannula device is adapted to removably attach to a base part of an infusion set. The cannula device can receive the piercing member from a first receiving direction and from a second receiving direction different from the first receiving direction, providing fluid communication between the piercing member and the cannula mounted to the housing.