Flat-Hose Assembly for Wound Drainage Sealing
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Solution Overview
Problem
Existing wound treatment systems using round tubing face challenges in maintaining an airtight seal, are prone to kinking, and cause patient discomfort due to pressure points.
Innovation Solution
A flat-hose assembly with a top layer, bottom layer, and filter layer, designed to form a seal along the periphery, allowing exudates to flow while preventing kinking and reducing pressure points through a flexible and adhesive attachment to the wound dressing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If round tubing is used for wound drainage, then the system is simple to manufacture, but it is difficult to make an airtight seal between the dressing and the tubing
Solution Approach 1:
The hose assembly is divided into multiple functional layers including a top layer, bottom layer, and filter layer, with the seal area specifically segmented at the periphery to create an airtight interface with the dressing while maintaining manufacturing simplicity
Solution Approach 2:
The invention transitions from round tubing to a flat hose configuration, changing the dimensional geometry to enable better contact and sealing with the flat surface of the wound dressing, thereby improving seal integrity without significantly complicating manufacturing
2Device complexity
If round tubing is used at the wound site, then the system structure is simple, but it creates pressure points on the patient causing discomfort
Solution Approach 1:
The flat hose is constructed with flexible top and bottom layers that can conform to the patient's body contours, distributing pressure evenly and eliminating the pressure points caused by rigid or rounded tubing structures
3Ease of operation
If conventional tubing is used, then the system is easy to operate, but it is easy to cause the tubing to be bent or kinked blocking the flow of exudates
Solution Approach 1:
The flat hose assembly is designed with flexible layers that can dynamically adapt to bending and positioning requirements during patient movement and nursing care, while the internal filter layer and layered structure prevent kinking that would block exudate flow
Solution Approach 2:
The hose assembly uses composite construction with multiple layers including filter material between top and bottom layers, creating a structure that maintains structural integrity and prevents kinking while remaining flexible enough for easy operation
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 flat-hose assembly maintains an effective seal, prevents kinking, and reduces patient discomfort by allowing continuous exudate flow and flexible positioning, enhancing the efficiency and comfort of negative pressure wound treatment.
Implementation Method 1
The filter layer is adapted to trap large particles of exudates from a wound within the flat-hose assembly
Implementation Method 2
The vacuum pump applies negative pressure to the wound. The vacuum pump is in communication with the collection bag and the flat-hose assembly
Implementation Method 3
The adhesive is adapted to connect the flat-hose assembly to a wound dressing of the wound drainage system
Data Source
AI summary
A flat-hose assembly has a proximal end and a distal end adapted for use with a negative pressure wound drainage system. The flat-hose assembly comprises a top layer, a bottom layer, and a filter layer. The bottom layer forms an opening at the distal end of the flat-hose assembly to allow exudates of a wound to flow into the flat-hose assembly. The filter layer is disposed between the top layer and the bottom layer. The top and bottom layer form a seal area along a periphery of the top layer and the bottom layer to seal the filter layer therebetween.