Ostomy Coupling Parts Axial Connection Design
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Solution Overview
Problem
Existing ostomy coupling arrangements often fail to provide a secure, discreet, and easy-to-use connection between ostomy bags and base plates, risking accidental uncoupling and leakage.
Innovation Solution
A set of coupling parts that connect by axial movement, featuring a first coupling part with a base and axial wall, and a second coupling part with a radially inward stop, utilizing a connection part with varying radii for secure engagement and disengagement, and optional biasing means for alignment, ensuring a tight and comfortable seal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a secure and tight coupling is designed to prevent leakage and accidental uncoupling, then the coupling reliability is improved, but the ease of operation for coupling and uncoupling deteriorates
Solution Approach 1:
The connection part is designed as a dynamic element that can change its radial dimensions. It features a biased outer surface that can be compressed radially inward against the first coupling part and then released to expand outward, creating a snap-fit action that secures the coupling while allowing easy attachment and detachment through axial movement only
Solution Approach 2:
The coupling system is divided into three separate functional parts: a first coupling part on the base plate, a second coupling part on the ostomy bag, and a separate connection part that bridges them. This segmentation allows each part to be optimized independently - the connection part handles the securing function through radial compression while the axial movement handles the coupling/uncoupling operation
2Reliability
If the coupling arrangement is designed to be tight and secure, then leakage prevention is improved, but the device complexity increases
Solution Approach 1:
The connection part utilizes flexible material properties to achieve sealing and securing functions. The biased outer surface is made of compressible material that can deform radially to engage with the first coupling part and maintain constant contact pressure, creating a reliable seal without requiring complex mechanical sealing structures
Solution Approach 2:
The connection part is self-securing through its biased design. When compressed axially onto the first coupling part and then released, it automatically expands radially to engage and lock in place without requiring additional locking mechanisms, threads, or complex fastening operations
Data Source
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Figure 5a~5b
AI summary
The present invention relates to a set of coupling parts, such as parts for coupling an ostomy bag to a base plate, said base plate being adhered around a stoma. The set of coupling parts provides a connection part that may be interposed between a first coupling part and a second coupling part and where the coupling parts may be connected and disconnected from each other by the same movement of the connection part.