Pneumatically-Actuated Instillation Regulator for Negative-Pressure Therapy
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Solution Overview
Problem
The cost and complexity of negative-pressure therapy systems and processes present challenges in their application, limiting their widespread use in wound healing and tissue treatment.
Innovation Solution
A system comprising an exudate container, a solution source, and an instillation regulator that is pneumatically-actuated, allowing for the controlled instillation of topical treatment solutions during negative-pressure therapy, utilizing a piston mechanism to manage fluid flow between the solution source and the dressing, with check valves to prevent backflow and ensure effective solution delivery.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If negative-pressure therapy systems are implemented to treat wounds and promote tissue growth, then wound healing efficacy is improved, but system cost and complexity increase
Solution Approach 1:
The patent combines the negative-pressure therapy function with the instillation regulator into a single integrated disposable apparatus. The instillation regulator is coupled to both the exudate container and solution source, allowing both functions to operate through a unified system rather than separate devices, thereby reducing overall system complexity while maintaining therapeutic efficacy.
Solution Approach 2:
The instillation regulator serves multiple functions: it controls solution instillation to the wound bed, manages fluid flow between the solution source and exudate container, and responds to negative pressure actuation. This multi-functionality reduces the need for additional separate components, simplifying the overall system while providing comprehensive wound treatment capabilities.
2Adaptability or versatility
If multiple separate components are used for negative-pressure therapy and instillation, then functional versatility is improved, but ease of operation and reduced complexity are worsened
Solution Approach 1:
The patent integrates the instillation regulator, exudate container, and solution source coupling into a single disposable apparatus that can be easily applied as one unit. This merging eliminates the need for complex assembly of multiple separate components during patient treatment, significantly improving ease of operation while maintaining all necessary therapeutic functions.
3Manufacturing precision
If a pneumatically-actuated instillation regulator is used to control solution flow, then manufacturing precision and reliability are improved, but device complexity increases
Solution Approach 1:
The instillation regulator is pneumatically actuated by the negative pressure from the patient's own therapy system, eliminating the need for external actuators or additional power sources. The regulator automatically responds to pressure changes to control solution flow, providing precise control through a self-regulating mechanism that does not add significant complexity to the system.
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
This solution simplifies the application of negative-pressure therapy while ensuring reliable instillation of treatment solutions, reducing the need for ancillary components and providing a single disposable apparatus, thus enhancing wound healing and tissue treatment efficacy.
Implementation Method 1
negative pressure from a negative-pressure source can actuate the instillation regulator... negative pressure applied to the second chamber through the negative-pressure port during a negative-pressure interval can actuate the piston
Implementation Method 2
Check valves can be coupled to the solution inlet port and the solution outlet port to prevent drawing fluid through the solution outlet port and expelling fluid through the solution inlet port
Implementation Method 3
negative pressure from a negative-pressure source can actuate the instillation regulator... a negative-pressure source may be configured for a negative-pressure interval and a venting interval
Data Source
AI summary
New and useful systems, apparatuses, and methods for providing negative-pressure therapy with instillation of topical treatment solutions are described. An apparatus may comprise an exudate container, a solution source, and a pneumatically-actuated instillation regulator. The instillation regulator may be coupled to the exudate container and to the solution source, and negative pressure from a negative-pressure source can actuate the instillation regulator. In some embodiments, a negative-pressure source may be configured for a negative-pressure interval and a venting interval, and the instillation regulator can be configured to draw instillation solution from the solution source during a negative-pressure interval and to instill the solution to a dressing during a venting interval.