Integrated Pump Dressing for Wound Therapy
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Solution Overview
Problem
Current negative-pressure therapy systems for wound treatment lack efficient and integrated solutions for applying and managing negative pressure, which can hinder the effectiveness of the therapy.
Innovation Solution
A dressing system with an integrated negative-pressure source and a releasably coupled pump actuator, which includes a tissue interface, a cover, a chamber wall, and a base, to effectively apply and manage negative pressure across a tissue site.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If negative-pressure therapy is applied to treat wounds, then tissue growth and healing are improved, but the complexity of the therapy system increases
Solution Approach 1:
The pump actuator is integrated directly into the dressing assembly, merging the negative-pressure generation function with the wound coverage function. This eliminates the need for separate external pump equipment and complex connection systems, thereby reducing overall system complexity while maintaining effective negative-pressure therapy for wound healing
2Reliability
If an integrated pump system is used to apply negative pressure, then consistent pressure delivery is improved, but the device complexity increases
Solution Approach 1:
The pump actuator is designed to be manually operated by the patient or caregiver, eliminating the need for electronic controls, power sources, and automated regulation systems. This self-service mechanism maintains consistent pressure delivery through direct mechanical action while significantly reducing device complexity compared to electronically controlled systems
3Ease of operation
If a releasably coupled pump actuator is used, then ease of operation is improved, but the reliability of the seal may worsen
Solution Approach 1:
The pump actuator is designed as a separable component that can be easily attached and detached from the dressing. This segmentation allows for simple operation and maintenance while incorporating sealing mechanisms that ensure reliable fluid-tight connections during use, balancing ease of operation with seal integrity
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 system enhances the application of negative pressure, promoting tissue growth and reducing healing times by ensuring consistent and controlled delivery of negative pressure to the tissue site.
Implementation Method 1
The pump chamber may be compressed to evacuate fluid from the pump chamber through the exhaust valve. The pump chamber may then be expanded to draw fluid through the intake valve from the tissue interface. This supplies a negative pressure to the tissue interface
Data Source
AI summary
A dressing for treating a tissue site with negative pressure including a tissue interface, a cover, a chamber wall, and a base. The cover may be adapted to be sealed to epidermis proximate the tissue site. The chamber wall may define a pump chamber, wherein the pump chamber may be adapted to be fluidly coupled to the tissue interface. The base may extend from the chamber wall, wherein the base may be fluidly sealed to the cover. The dressing may include an intake valve and an exhaust valve fluidly coupled to the pump chamber. The pump chamber may be compressed to evacuate fluid from the pump chamber through the exhaust valve. The pump chamber may then be expanded to draw’ fluid through the intake valve from the tissue interface. This supplies a negative pressure to the tissue interface which may be adapted to distribute negative pressure across the tissue site.