RF-Powered Wound Dressing with UV-Activated Antimicrobial Coating
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Solution Overview
Problem
Conventional wound dressings often fail to effectively prevent bacterial and fungal infections as harmful organisms can penetrate through the dressing, requiring frequent and painful reapplication of antibacterial or antifungal treatments, which increases the risk of infection and treatment costs.
Innovation Solution
A wound dressing incorporating an optical energy emitting device, such as LEDs, and a radio frequency receiving device, which captures energy to emit light that is directed onto the wound or a material generating therapeutic effects, such as titanium dioxide, to combat bacteria, viruses, and fungi, with a biological sensor to selectively administer treatment based on organism levels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional wound dressings are used to protect wounds from the environment, then the wound is protected from external contaminants, but bacteria and harmful organisms can still penetrate through the dressing and cause infection
Solution Approach 1:
The patent applies UV light to the wound dressing material (such as titanium dioxide) to transform it into an active antimicrobial agent. The UV irradiation converts the protective material into a substance that actively destroys bacteria, fungi, and viruses, turning a passive barrier into an active defender that eliminates harmful organisms rather than merely blocking them.
Solution Approach 2:
The patent changes the physical and chemical parameters of the wound dressing material by exposing it to UV light. This irradiation alters the material's properties, activating its antimicrobial capabilities. The material transitions from a simple protective barrier to a chemically active substance with enhanced biocidal properties, thereby improving protection effectiveness while preventing harmful factor penetration.
2Reliability
If antibacterial or antifungal creams and ointments are applied periodically, then harmful organisms are combated, but the patient experiences pain and increased infection risk from repeated dressing changes
Solution Approach 1:
The patent enables continuous antimicrobial action by incorporating UV-activatable material into the wound dressing that remains active throughout the wear period. Instead of requiring periodic reapplication of treatments, the dressing continuously protects the wound by maintaining activated antimicrobial properties, thereby improving infection combat capability while eliminating the pain and discomfort associated with frequent dressing changes.
Solution Approach 2:
The wound dressing performs its own antimicrobial function through the UV-activated material integrated into its structure. The dressing self-regulates and maintains protective action without requiring external intervention or manual reapplication of creams and ointments, thereby improving infection combat capability while enhancing patient comfort by eliminating the need for frequent manual dressing changes.
3Reliability
If frequent dressing changes are performed to reapply treatments, then therapeutic effectiveness is maintained, but treatment costs and time requirements increase
Solution Approach 1:
The patent incorporates UV-activatable antimicrobial material into the wound dressing during manufacturing, preparing the dressing in advance with built-in therapeutic capability. This preliminary incorporation of active protective agents eliminates the need for frequent subsequent reapplication, thereby maintaining therapeutic effectiveness while reducing the time and resources required for repeated dressing changes.
Solution Approach 2:
The patent utilizes UV light irradiation to activate and sustain the antimicrobial properties of the dressing material throughout the wear period. This parameter change approach allows the dressing to maintain its therapeutic effectiveness without degradation over time, eliminating the need for frequent reapplication and thereby reducing the time loss and costs associated with repeated dressing changes.
Data Source
AI summary
A wound dressing includes a substrate, an optical energy emitting device, and a radio frequency receiving device. The substrate is configured to engage biological tissue of a patient. The optical energy emitting device is attached to the substrate, and the radio frequency receiving device is electrically coupled with the optical energy emitting device. The radio frequency receiving device is configured to capture energy from radio frequency transmissions. The radio frequency receiving device is further configured to direct at least a portion of the energy to the optical energy emitting device. Upon receipt of the energy from the radio frequency receiving device, the optical energy emitting device is configured to emit light onto biological tissue of a patient.