Negative Pressure Wound Therapy Controller Volume Monitoring
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Solution Overview
Problem
Current negative pressure wound therapy systems require frequent adjustments and monitoring by healthcare providers to optimize wound healing, which can be time-consuming and inefficient, as each patient's healing process is unique and may not be accurately predicted by initial prescriptions.
Innovation Solution
A negative pressure wound therapy apparatus with a controller that periodically adjusts pressure between low and high setpoints, using pressure sensors to monitor wound volume changes over time, providing real-time indications of healing progress and allowing for efficient adjustment of therapy settings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If negative pressure wound therapy is applied with fixed initial prescriptions, then treatment can be started immediately, but the therapy cannot be optimized for individual patient healing processes
Solution Approach 1:
The system continuously monitors wound volume changes and uses this feedback to automatically adjust negative pressure settings. The controller receives real-time data from pressure sensors and modulates the negative pressure source accordingly, creating a closed-loop control system that adapts to individual patient healing processes without requiring frequent manual interventions.
Solution Approach 2:
The therapy system performs self-adjustment by automatically monitoring wound volume and modulating negative pressure settings based on detected healing progress. This self-service capability eliminates the need for healthcare providers to frequently manually adjust and monitor each patient's unique healing process, reducing time loss while maintaining high adaptability.
2Reliability
If healthcare providers frequently monitor and adjust wound therapy settings, then optimal healing outcomes can be achieved, but the process becomes time-consuming and inefficient
Solution Approach 1:
The system implements continuous feedback monitoring of wound volume changes and automatically adjusts negative pressure settings to maintain optimal healing conditions. This automated feedback loop ensures reliable optimization of wound healing outcomes while eliminating the need for frequent manual provider interventions, thereby significantly improving healthcare provider productivity and workflow efficiency.
Solution Approach 2:
The patent replaces the manual mechanical process of provider monitoring and adjustment with an automated electronic control system. The controller uses pressure sensor data and algorithms to automatically modulate negative pressure settings, substituting human time and effort with automated mechanical-electronic systems that maintain reliable healing optimization while freeing providers for other tasks.
3Ease of operation
If manual monitoring and adjustment of wound therapy is used, then simple device operation is maintained, but frequent provider interventions are required
Solution Approach 1:
The system performs self-monitoring and self-adjustment of negative pressure settings based on automated wound volume detection. This self-service functionality maintains the simplicity of device operation from the user perspective while eliminating the need for frequent provider interventions, as the device autonomously manages its own optimization without adding operational complexity.
Solution Approach 2:
The automated feedback system continuously monitors wound parameters and adjusts therapy settings without requiring provider input. This feedback mechanism preserves ease of operation by allowing providers to simply initiate treatment while the system handles all subsequent monitoring and adjustments autonomously, eliminating time loss from frequent interventions without complicating the user interface or 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
This approach enables more efficient and effective delivery of negative pressure wound therapy by automatically adjusting pressure settings based on wound volume changes, facilitating real-time monitoring and reducing the need for frequent healthcare provider interventions, thus enhancing wound healing outcomes.
Implementation Method 1
a pressure sensor configured to measure pressure in the fluid flow path
Implementation Method 2
a negative pressure source configured to be fluidically connected by a fluid flow path to a wound covered by a wound dressing. The negative pressure source can be configured to provide negative pressure to the wound via the fluid flow path
Data Source
AI summary
A negative pressure wound therapy system can include a negative pressure source configured to provide, via a fluid flow path, negative pressure to a wound covered by a wound dressing. The system can include a controller. The controller can be configured to periodically activate the negative pressure source to maintain negative pressure in the fluid flow path between a low negative pressure setpoint and a high negative pressure setpoint. The controller can be configured to determine a change in a volume of the wound based on a difference between a first time and a second time at which the high negative pressure setpoint has been established in the fluid flow path, the second time being subsequent to the first time. The controller can be configured to provide indication of the change in the volume of the wound.