Integrated Wound Dressing with Pump and Filter for TNP Therapy
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing wound dressing systems for topical negative pressure (TNP) therapy are bulky, expensive, and require complex setups, making them unsuitable for portable and hygienic use outside a hospital environment.
Innovation Solution
A disposable wound dressing with an integrated pump and filter layer that generates negative pressure and collects wound exudate, eliminating the need for a separate therapy unit and reducing the risk of contamination.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a separate therapy unit with pump and canister is used for TNP therapy, then wound exudate can be effectively removed and stored, but the apparatus becomes bulky, expensive, and complex to operate
Solution Approach 1:
The patent combines the pump, absorbent layer, and waste canister into a single integrated wound dressing unit. The pump is positioned within the dressing to draw exudate through the absorbent layer into the waste canister, eliminating the need for separate therapy unit components and reducing overall system complexity while maintaining effective exudate removal
Solution Approach 2:
The wound dressing serves multiple functions simultaneously: it acts as a seal against the wound, contains the pump for negative pressure generation, absorbs and transports exudate through the absorbent layer, stores waste in the integrated canister, and provides a filter layer for gas exchange. This multi-functionality reduces the need for separate specialized components
2Reliability
If a separate therapy unit with pump and canister is used for TNP therapy, then wound exudate can be effectively removed and stored, but the apparatus becomes heavy and difficult to transport outside hospital
Solution Approach 1:
The patent combines the pump, absorbent layer, and waste canister into a single integrated wound dressing unit. The pump is positioned within the dressing to draw exudate through the absorbent layer into the waste canister, eliminating the need for separate therapy unit components and reducing overall system complexity while maintaining effective exudate removal
Solution Approach 2:
The integrated wound dressing with pump and canister is designed as a disposable unit that can be discarded after use, eliminating the need for heavy, reusable therapy units with replaceable components. This reduces the weight burden on patients during transport while maintaining therapeutic effectiveness
3Reliability
If a separate therapy unit with pump and canister is used for TNP therapy, then wound exudate can be effectively removed and stored, but the apparatus requires specialist knowledge to operate and maintain
Solution Approach 1:
The patent combines the pump, absorbent layer, and waste canister into a single integrated wound dressing unit. The pump is positioned within the dressing to draw exudate through the absorbent layer into the waste canister, eliminating the need for separate therapy unit components and reducing overall system complexity while maintaining effective exudate removal
Solution Approach 2:
The integrated wound dressing is designed to be self-contained and self-explanatory, with the pump, absorbent layer, and canister working together as a unified system that requires minimal instruction to operate. The disposable nature eliminates maintenance requirements, allowing patients or caregivers without specialist training to use the device effectively
4Reliability
If a separate therapy unit with pump and canister is used for TNP therapy, then wound exudate can be effectively removed and stored, but the risk of contamination increases during canister replacement
Solution Approach 1:
The patent combines the pump, absorbent layer, and waste canister into a single integrated wound dressing unit. The pump is positioned within the dressing to draw exudate through the absorbent layer into the waste canister, eliminating the need for separate therapy unit components and reducing overall system complexity while maintaining effective exudate removal
Solution Approach 2:
The integrated wound dressing with pump and canister is designed as a disposable unit that can be discarded after use, eliminating the need for heavy, reusable therapy units with replaceable components. This reduces the weight burden on patients during transport while maintaining therapeutic effectiveness
Solution Approach 3:
The waste canister is integrated into the dressing and sealed within the pack, allowing the entire unit to be discarded as a single disposable item. This extraction of the canister from the therapy unit eliminates the need for separate canister replacement procedures that create contamination risks
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 wound dressing provides a portable, cost-effective, and hygienic solution for TNP therapy, allowing for efficient collection and storage of wound exudate while preventing over expansion and contamination.
Implementation Method 1
via a pump element, pumping wound exudate and air from a wound site
Implementation Method 2
collecting wound exudate pumped from the wound site, through at least one orifice in the sealing layer, in an absorbent layer of the wound dressing
Implementation Method 3
a liquid impermeable, gas permeable filter layer over the absorbent layer
Data Source
AI summary
A method and apparatus are disclosed for dressing a wound. The apparatus comprises a sealing layer comprising at least one orifice, an absorbent layer over the sealing layer, absorbing wound exude and a liquid impermeable, gas permeable filter layer over the absorbent layer.