Wearable Wound Simulation With Haptic Feedback for Care Training
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Solution Overview
Problem
Conventional training devices for wound care lack realism and provide inadequate patient feedback, making it difficult for nursing or medical students to gain the necessary experience for effective wound treatment.
Innovation Solution
A wearable wound treatment simulation device with a housing, removable wound structure, and pressure application system that simulates realistic wound conditions, provides haptic feedback, and includes thermochromic pigments for temperature indication, enhancing the training experience.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional mannequins or static models are used for wound care training, then device complexity is reduced, but realism and patient feedback are insufficient
Solution Approach 1:
The patent creates a realistic copy of a wound by using a wound structure with a cavity that contains wound fluid, replicating the appearance and texture of an actual wound. This allows trainees to practice on a simulated wound that closely resembles real patient conditions without the complexity of using actual patients.
Solution Approach 2:
The patent incorporates feedback mechanisms where the wound structure can detect applications of force or pressure and provide haptic feedback to the trainee. This simulates patient reactions to treatment, giving trainees realistic feedback on their treatment techniques without requiring actual patient involvement.
2Reliability
If static models are used for wound treatment training, then ease of operation is improved, but ability to provide patient feedback deteriorates
Solution Approach 1:
The patent transforms the static wound model into a dynamic system where the wound structure can respond to trainee actions. The wound structure includes sensors and actuators that dynamically adjust based on trainee interactions, providing realistic patient feedback while maintaining ease of use through automated responses.
Solution Approach 2:
The wound structure is designed to automatically detect applications of force or pressure and generate appropriate haptic feedback without requiring external intervention. This self-service capability provides realistic patient feedback while simplifying the operation for trainees.
3Reliability
If a wearable device with pump and thermochromic pigments is used, then realism and feedback quality are improved, but device complexity and energy consumption increase
Solution Approach 1:
The patent uses a pump to circulate wound fluid through the wound structure, creating realistic wound exudate and allowing for dynamic control of wound conditions. This hydraulic system enhances realism by simulating the natural fluid dynamics of a real wound while using efficient pumping mechanisms to minimize energy consumption.
Solution Approach 2:
The patent incorporates thermochromic pigments in the overlay that change color in response to temperature changes, providing visual feedback about wound conditions or patient reactions. This passive color-changing mechanism provides enhanced realism and feedback without requiring additional active energy-consuming components.
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 device improves the realism and feedback during wound treatment simulations, enabling trainees to develop proper treatment techniques and respond to patient reactions, thereby improving their ability to treat patients effectively.
Implementation Method 1
The pump is driven by the power supply to apply pressure to the wound fluid within the cavity. The application of pressure or force to the removable wound structure evacuates the wound fluid from the cavity of the wound structure to a portion of the top surface of the wound structure.
Implementation Method 2
the overlay comprises one or more thermochromic pigments adapted to change in color based on a predetermined temperature threshold
Implementation Method 3
when the detected application of force or pressure exceeds the predetermined threshold, an actuator is activated to provide haptic feedback to the subject
Data Source
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AI summary
A wound treatment simulation device and method of operating thereof are disclosed. The device includes a housing, a simulated wound structure, a pump, a power supply, a sensor, a feedback device, and a microprocessor. The housing is configured to be secured to the live subject and to cover at least a portion of a body of the subject. The wound structure is configured to simulate a structure associated with the type of simulated wound treatment. The at least one feedback device is configured to provide a feedback signal to the live subject. The microprocessor is connected to the sensor and the feedback device. The microprocessor is programmed to operate the feedback device to provide haptic feedback based upon input (e.g. force or pressure) generated from interaction between a treatment provider and the simulated wound structure. The disclosed device may be used to simulate a variety of wound care and treatments.