Drainable Collection Bag Angled Fastening Closure Mechanism
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional drainable collecting bags are difficult for patients, especially elderly ones, to open, empty, clean, and reseal due to direct exposure to waste material and require greater dexterity, and residual waste often blocks the discharge opening, making cleaning challenging.
Innovation Solution
A drainable collecting bag design featuring angled fastening strips and pivotable plates that facilitate easy closure and reopening of the discharge opening, allowing for secure sealing and easy cleaning by protecting the user's fingers from contamination and ensuring complete emptying.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional wire ties or wraps are used to close the discharge opening, then the closure provides a reliable seal, but the device is difficult for patients to open and re-close
Solution Approach 1:
The closure device is divided into separate components: a clamp body with finger-engaging features and a separate neck portion that can be manipulated independently. This segmentation allows the patient to easily grasp and manipulate the clamp with fingers while maintaining reliable sealing when closed.
Solution Approach 2:
The clamp is designed to transition between open and closed states dynamically. The finger-engaging features and neck portion configuration enable easy opening by finger manipulation while maintaining secure closed position through the夹持 mechanism, providing both ease of operation and sealing reliability.
2Productivity
If the discharge opening is positioned at the lower end of the bag, then waste material drains effectively, but residual waste blocks the walls making cleaning difficult
Solution Approach 1:
The neck portion is extracted as a separate, accessible component that can be manipulated independently from the main bag body. This allows the user to access and clean the discharge opening area more easily by unfolding and manipulating the neck portion, while still maintaining effective drainage when closed.
Solution Approach 2:
The neck portion is designed to be unfolded and positioned for cleaning before the actual cleaning action takes place. This preliminary positioning makes the discharge opening and adjacent surfaces accessible for cleaning, preventing waste buildup that would otherwise block the drainage path.
3Reliability
If the neck portion is folded upward for closure, then liquid tight sealing is achieved, but the mechanism requires greater dexterity than elderly patients can provide
Solution Approach 1:
The clamp is designed with asymmetric finger-engaging features that accommodate natural finger positioning and dexterity limitations. The engagement surfaces are shaped to be easily grasped by fingers, reducing the dexterity required to achieve and maintain the closed, sealed position.
Solution Approach 2:
The finger-engaging features act as an intermediary between the user's fingers and the clamp mechanism. This intermediary design translates simple finger motions into the precise movements needed to fold and secure the neck portion, reducing the dexterity requirement while maintaining reliable sealing.
Data Source
AI summary
A drainable collecting bag for human body wastes may comprise a front wall and a rear wall of flexible sheet material defining a cavity there between and which may define a downwardly extending neck portion terminating in a discharge opening. The discharge opening can be folded upwards into a closed configuration for liquid tight closure of the bag and the folded closure may be fixed by angled fastening strips.