Pelvic Base Urine Collection Sheath for Leak-Proof Drainage
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Solution Overview
Problem
Existing external male catheters are difficult to apply, especially for males with a recessive penis, often cause pain and injury during removal, and tend to leak, leading to discomfort and skin irritations.
Innovation Solution
The catheter is attached to the pelvic area with a base that houses the penis, using a sheath with a detachable connection to a drain tube and bag, allowing for secure attachment without adhesive on the penis, minimizing discomfort and enabling easy removal and maintenance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If adhesive is used to secure the catheter to the penis, then the catheter can be easily attached, but it causes pain and injury during removal and skin irritation
Solution Approach 1:
The adhesive is extracted from direct contact with the penis and relocated to the pelvic area base. The base with adhesive attaches to the pelvic skin while the sheath encloses the penis without adhesive contact, eliminating the harmful removal process from the penis while maintaining secure attachment functionality.
Solution Approach 2:
The base attached to the pelvic area serves as an intermediary structure that secures the catheter system without requiring adhesive on the penis. This mediator transfers the attachment function from the penis surface to the pelvic area, reducing direct harmful adhesive contact with sensitive penile skin.
2Reliability
If aggressive adhesive is used to secure the catheter, then the catheter can withstand body movement and urine pressure, but it causes pain and damage during removal
Solution Approach 1:
The aggressive adhesive is extracted from the penis contact area and placed only on the pelvic base. The sheath secures through mechanical enclosure and connection to the base rather than aggressive adhesive on the penis, maintaining reliability while eliminating damage risks.
Solution Approach 2:
Adhesive is applied locally only to the pelvic base area where skin is more tolerant, rather than on the entire penis surface. The sheath provides localized securement through its enclosure structure and connection mechanisms, distributing stress away from sensitive areas.
3Reliability
If the catheter is applied to the penis shaft, then it can be secured, but it is difficult to apply especially to males with a recessive penis
Solution Approach 1:
Instead of applying the catheter to the penis shaft and securing it there, the attachment point is inverted to the pelvic area base. The base attaches to the pelvic region which is more accessible and has greater surface area, making application easier while the sheath still secures the penis effectively.
Solution Approach 2:
The pelvic base acts as an intermediary that simplifies application by providing a larger, more accessible attachment surface. This mediator eliminates the difficulty of applying adhesive to the recessive penis shaft while maintaining secure catheter fixation through the base-sheath connection system.
4Ease of repair
If the catheter is removed from the penis shaft, then it can be reapplied, but frequent removal and reapplication causes skin irritation and infection risk
Solution Approach 1:
The adhesive attachment is extracted from the penis shaft and relocated to the pelvic base. This allows the sheath to be easily detached and reattached without removing adhesive from the penis skin, eliminating repeated skin irritation and infection risks while maintaining ease of reapplication.
Solution Approach 2:
The catheter system is segmented into the pelvic base with adhesive and the separate sheath that encloses the penis. This segmentation allows the sheath to be independently removed, cleaned, or replaced without disturbing the adhesive base on the pelvic area, reducing skin trauma and infection risk.
Data Source
AI summary
The urine collection device is designed to be attached to a drain tube. The device may include a base secured to the pelvic area of a wearer, the base having a central opening. Connected to the base is a sheath. The central opening and the sheath can have complementary attachment components whereby the sheath may be attached to the base. The sheath includes an opening and attaches to a drain tube. A second sheath may be disposed outboard of the first sheath and secured to the base in a similar manner. In some embodiments the drain tube may be connected and disconnected from the sheath or sheaths without disturbing the installation of the device. One or more check valves may be included for assuring one-way flow in the drain tube.