Protective Dressing With Reusable PCM Cooling Insert
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Traditional protective barrier dressings fail to reduce skin temperature and may increase it, which can contribute to the development of pressure ulcers and deep tissue injury, as they do not effectively manage microclimate conditions, especially in settings where microclimate management systems are incompatible or prone to interference.
Innovation Solution
A protective dressing system incorporating a phase-change material (PCM) insert that creates a temperature gradient between the skin and a heat sink, allowing for localized cooling or heating, and includes a reusable cooling insert that can be easily replaced, along with sensors for temperature, pressure, and moisture monitoring to optimize skin care.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If traditional protective barrier dressings are used, then the skin is protected from friction and moisture, but the skin temperature increases which contributes to pressure ulcer development
Solution Approach 1:
The patent incorporates a phase-change material (PCM) insert that utilizes phase transitions (melting/freezing) to absorb and release heat at a constant temperature. The PCM is contained within a barrier dressing, allowing it to actively regulate skin temperature by absorbing excess heat when skin temperature rises and releasing heat when skin temperature drops, thereby preventing temperature-related tissue damage while maintaining pressure ulcer protection
Solution Approach 2:
The barrier dressing with PCM insert acts as an intermediary layer between the skin and the external environment. This intermediary structure actively manages thermal conditions at the skin surface, mediating heat transfer to prevent both overheating and excessive cooling, while simultaneously providing mechanical protection against friction and moisture
2Temperature
If microclimate management layers are used to reduce temperature, then skin temperature decreases, but the system becomes incompatible with some care settings and susceptible to interference from patient linens
Solution Approach 1:
The patent extracts the temperature management function from complex microclimate management systems and implements it through a simple, self-contained phase-change material insert within a standard barrier dressing. This extracted approach eliminates the need for complex electronic controls, power sources, and specialized equipment, making the solution universally applicable across different care settings including hospitals, nursing homes, and home care environments
Solution Approach 2:
The barrier dressing with PCM insert is designed as a disposable or easily replaceable unit. The PCM insert can be refrigerated before use and then applied as a complete assembly with the barrier dressing. After use, the entire unit can be disposed of or the PCM insert replaced, eliminating the need for complex cleaning, maintenance, or sterilization procedures that would limit applicability in various care settings
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 effectively reduces skin temperature, thereby prolonging the time a patient can tolerate pressure without tissue damage, minimizing the risk of pressure ulcers and deep tissue injury, while being compatible with various care settings and reducing costs through the use of interchangeable PCM inserts.
Implementation Method 1
A phase change material (PCM) is a substance with a high heat of fusion or v that is capable of storing and releasing large amounts of heat energy when melting or freezing. In particular, when a PCM in the solid phase reaches the temperature at which it changes phase (the melting temperature), the PCM may absorb large amounts of heat at an almost constant temperature.
Implementation Method 2
The heat sink has a first temperature different from the temperature of the skin being contacted by the skin contacting surface to create a temperature gradient between the skin and the heat sink.
Data Source
AI summary
A protective dressing includes an outer dressing and an adhesive layer. The outer dressing includes an opening and a cavity sized to receive a phase-change material (PCM) insert inserted through the opening. The adhesive layer is configured to adhere to a patient's skin surrounding an anatomic site. When adhered to the patient's skin, the PCM insert modifies the patient's skin at the anatomic site. The PCM insert may be removed and replaced with another PCM insert. For example, a warm PCM insert may be replaced with a refrigerated PCM insert. The opening of the outer dressing may be self-sealing. The opening of the outer dressing may be sealed with an upper layer dressing coupled to the PCM cooling insert.