Sensor-Integrated Therapeutic Dressing for Controlled Nerve Stimulation
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Solution Overview
Problem
Existing nerve repair and reconstruction surgeries have slow recovery processes, and there is a need for adjunct therapies that can accelerate nerve function recovery and improve outcomes.
Innovation Solution
A therapeutic dressing with a central non-adherent portion and an adherent portion, incorporating a sensor, stimulating electrode, and an integrated circuit to deliver controlled electrical stimulation to nerves, ensuring consistent current delivery regardless of patient size or skin resistance, designed for single-use disposable application.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If electrical stimulation is delivered to accelerate nerve regeneration, then recovery speed is improved, but device complexity increases
Solution Approach 1:
The device is segmented into modular components: a stimulation module containing electrodes and circuitry, a sensor module for monitoring, and a dressing module for application. This segmentation allows each component to be optimized independently while working together to achieve accelerated nerve regeneration through controlled electrical stimulation.
Solution Approach 2:
The patent merges multiple functions into a single integrated device: electrical stimulation delivery, physiological monitoring via sensors, and wound dressing functionality are combined in one therapeutic system. This integration enables accelerated nerve regeneration while managing device complexity through unified design.
2Reliability
If controlled electrical stimulation is delivered regardless of patient size or skin resistance, then treatment reliability is improved, but device complexity increases
Solution Approach 1:
The device incorporates sensors that monitor physiological responses and skin impedance in real-time, feeding this information back to the control circuitry. This feedback mechanism enables the system to automatically adjust stimulation parameters to maintain consistent current delivery regardless of patient size or skin resistance, improving reliability while managing complexity through intelligent control.
Solution Approach 2:
The device dynamically changes electrical parameters such as voltage, frequency, and pulse width based on real-time measurements of skin resistance and patient response. This parameter adaptation ensures reliable current delivery to the nerve while managing device complexity through automated parameter adjustment algorithms.
3Ease of operation
If a single-use disposable dressing is used, then ease of operation is improved, but manufacturing precision requirements increase
Solution Approach 1:
The device is designed as a single-use disposable dressing that simplifies operation by eliminating cleaning and sterilization steps. The disposable nature allows for pre-assembled, pre-tested components that reduce manufacturing precision requirements during use, as the entire unit is replaced rather than reused and cleaned.
Solution Approach 2:
The dressing is pre-assembled with all components (electrodes, sensors, circuitry) integrated and tested before leaving the manufacturing facility. This preliminary action ensures proper positioning and functionality while reducing the precision requirements during clinical application, as the device is ready-to-use without requiring precise assembly or calibration at the point of care.
Data Source
AI summary
Therapeutic dressings for wounds are provided, as well as methods of using the same and methods of fabricating the same. A therapeutic dressing can include a central non-adherent portion, an adherent portion surrounding the central non-adherent portion, a sensor, at least one stimulating electrode, and a circuit in operable communication with the sensor and the at least one stimulating electrode. The electrode(s) can deliver an electrical stimulus to one or more nerves through the skin of a patient/user. The sensor can be, for example, an electromyography (EMG) sensor, and the therapeutic dressing can be configured such that the sensor and the electrode(s) are in direct physical contact with the skin during use.