Sensor-Integrated Wound Dressing for Adaptive Negative-Pressure Therapy
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Solution Overview
Problem
Existing negative-pressure therapy systems lack integrated sensors to effectively monitor and respond to the properties of wound exudates, such as pH, temperature, and humidity, which are crucial for optimizing treatment outcomes.
Innovation Solution
A dressing system with integrated sensors, including a pH sensor, temperature sensor, and humidity sensor, coupled to a microprocessor for real-time monitoring and feedback, allowing for precise control of negative pressure and treatment based on detected properties.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If integrated sensors are added to negative-pressure therapy systems, then measurement precision of wound exudate properties is improved, but device complexity increases
Solution Approach 1:
The patent combines multiple sensors (pH sensor, temperature sensor, humidity sensor) and the microprocessor into a single integrated dressing unit that contacts the wound. This merging approach allows simultaneous measurement of multiple wound exudate properties while consolidating system complexity into a compact, unified structure rather than distributing components across separate devices.
Solution Approach 2:
The dressing is designed as a multi-functional component that simultaneously provides negative-pressure therapy and performs multiple sensing functions (pH, temperature, humidity detection). The microprocessor integrates data from all sensors and controls therapy parameters, making the single dressing unit serve both therapeutic and diagnostic purposes, thereby improving measurement precision without proportionally increasing overall system complexity.
2Reliability
If real-time sensor monitoring is implemented, then treatment efficacy is improved, but use of energy increases
Solution Approach 1:
The microprocessor continuously receives data from the pH, temperature, and humidity sensors and uses this feedback to dynamically adjust negative-pressure therapy parameters in real-time. This feedback mechanism ensures treatment efficacy is optimized based on actual wound conditions while allowing the system to enter low-power states when adjustments are not required, balancing reliability with energy consumption.
Solution Approach 2:
The system performs sensor readings and therapy adjustments at periodic intervals rather than continuously, reducing energy consumption while maintaining effective monitoring. The microprocessor can be programmed to sample wound exudate properties at predetermined time intervals and only activate therapy adjustments when parameter thresholds are exceeded, thereby maintaining treatment efficacy with reduced power usage.
3Adaptability or versatility
If multiple sensors are integrated into the dressing, then adaptability of therapy to different wound conditions is improved, but manufacturing precision requirements increase
Solution Approach 1:
The dressing is divided into functionally distinct zones: a sensing portion containing the pH, temperature, and humidity sensors positioned to contact wound exudate, and a terminal portion housing the microprocessor and electronics. This segmentation allows each sensor to be optimized for its specific function while simplifying the integration process, as each component has a defined location and function, thereby reducing manufacturing precision requirements despite the multi-sensor design.
Solution Approach 2:
Different regions of the dressing are designed with specific properties tailored to their function: the sensing portion uses materials and sensor configurations optimized for detecting wound exudate properties, while the terminal portion is designed for electronics housing and processing. This local quality approach ensures each area meets its specific performance requirements without demanding high precision across the entire structure, facilitating easier manufacturing.
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
Enhances treatment efficacy by providing real-time data for adjusting therapy parameters, promoting tissue growth and healing through optimized negative-pressure application.
Implementation Method 1
a pH sensor having a sensing portion adapted to be positioned between the dressing and the tissue site and a terminal portion electrically coupled to a microprocessor configured to detect properties of fluid present at the tissue site
Implementation Method 2
a humidity sensor, a temperature sensor and a pressure sensor embodied on a single pad proximate the tissue site to provide data indicative of acidity, humidity, temperature and pressure
Implementation Method 3
a pH sensor, a humidity sensor, a temperature sensor and a pressure sensor embodied on a single pad proximate the tissue site to provide data indicative of acidity, humidity, temperature and pressure
Implementation Method 4
reducing pressure in proximity to a tissue site can augment and accelerate growth of new tissue at the tissue site
Data Source
AI summary
Systems, apparatuses, and methods for providing negative pressure to a tissue site are disclosed. Some embodiments are illustrative of an apparatus or system for delivering negative-pressure to a tissue site that can be used in conjunction with sensing properties of fluids extracted from a tissue site. For example, an apparatus may comprise a dressing interface or connector that includes a pH sensor, a humidity sensor, a temperature sensor and/or a pressure sensor embodied on a single pad within the connector and proximate the tissue site to provide data indicative of acidity, humidity, temperature and pressure. Such apparatus may further comprise an ambient port for providing the pressure sensor and the humidity sensor with access to the ambient environment providing readings relative to the atmospheric pressure and humidity.