Integrated Wound Dressing for Negative Pressure and Hyperbaric Oxygen Therapy
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Solution Overview
Problem
Current wound care treatments, such as negative pressure therapy and hyperbaric oxygen therapy, are often ineffective for patients with vascular disorders and are cumbersome to switch between, leading to inefficiencies and increased costs.
Innovation Solution
A wound dressing apparatus that integrates both negative pressure and hyperbaric oxygen therapy delivery systems within a unitary dressing, utilizing a domed chamber with a manifold and passages for fluid communication, allowing for simultaneous or alternating therapy applications.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If negative pressure therapy is applied to patients with vascular disorders, then wound exudate drainage is improved, but wound healing effectiveness deteriorates due to hypoxic environment creation
Solution Approach 1:
The patent combines negative pressure therapy and hyperbaric oxygen therapy into a single integrated wound dressing system. The dressing includes a negative pressure collection chamber and a hyperbaric oxygen delivery system that can operate simultaneously or alternately, allowing the benefits of both therapies to be combined to overcome the hypoxic environment problem of negative pressure therapy alone.
Solution Approach 2:
The system enables periodic alternation between negative pressure therapy and hyperbaric oxygen therapy through a single dressing. The controller can switch between the two therapy modes, allowing the wound to receive negative pressure for drainage followed by hyperbaric oxygen for reoxygenation, creating a periodic action that addresses both drainage and oxygenation needs.
2Reliability
If separate negative pressure therapy and hyperbaric oxygen therapy are used, then treatment effectiveness is improved, but treatment time and complexity increase due to switching requirements
Solution Approach 1:
The patent merges two separate therapy systems into one integrated wound dressing. The negative pressure collection chamber and hyperbaric oxygen delivery system are combined in a single unit that can be applied to the wound at once, eliminating the need to remove and reapply dressings when switching between therapies.
Solution Approach 2:
The wound dressing is designed as a multi-functional device that can perform both negative pressure drainage and hyperbaric oxygen delivery. The single dressing serves multiple purposes, acting as both a negative pressure collection system and a hyperbaric oxygen delivery mechanism, thereby reducing the overall treatment process complexity.
3Reliability
If hyperbaric oxygen therapy is applied in a hyperbaric chamber, then oxygen delivery to wound is improved, but portability and sterilization difficulty worsen
Solution Approach 1:
The patent extracts the hyperbaric oxygen delivery function from the large hyperbaric chamber and concentrates it into a compact wound dressing unit. The hyperbaric oxygen can be delivered directly to the wound site through the dressing without requiring the patient to be in a full hyperbaric chamber, thereby maintaining portability.
Solution Approach 2:
The system applies hyperbaric oxygen locally to the wound site rather than to the entire body or extremity. The hyperbaric oxygen delivery system is integrated directly into the wound dressing, providing localized treatment that maintains portability and ease of use while achieving effective oxygen delivery to the wound.
4Reliability
If conventional separate therapy dressings are used, then therapy specificity is maintained, but resource waste increases due to removal and reapplication of dressings
Solution Approach 1:
The patent combines multiple therapy functions into a single integrated dressing that can be used continuously. The negative pressure collection chamber and hyperbaric oxygen delivery system are integrated in one unit that remains on the wound throughout treatment, eliminating the need to remove and replace dressings when switching between therapies.
Solution Approach 2:
The integrated dressing enables continuous treatment without interruption. The system can switch between negative pressure and hyperbaric oxygen modes while the same dressing remains in place, maintaining continuous wound care without the waste associated with removing and reapplying separate dressings for each therapy type.
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 apparatus enables efficient and simultaneous delivery of negative pressure and hyperbaric oxygen therapies, improving wound healing outcomes, particularly for patients with vascular disorders, while reducing treatment time and costs.
Implementation Method 1
a first passage having a first end adapted to connect to a negative pressure source and a second end in communication with the dome interior
Implementation Method 2
a second passage having a first end adapted to connect to a positive pressure source and a second end in communication with the manifold
Data Source
AI summary
The wound dressing apparatus facilitates administration of combined negative pressure and positive pressure treatment at a wound site. The wound dressing apparatus includes a wound dome having a substantially hollow dome interior, a manifold that is in fluid communication with the dome interior, a first passage adapted to connect to a negative pressure source to the dome interior, and a second passage adapted to connect to a positive pressure source to the manifold.