Advancing Paralysis Therapy Research.

NeuStim is the first-of-its-kind technology that re-connects brain activity to muscle stimulation in paralysis patients, offering unprecedented hope for movement restoration and independence. Neuvotion is dedicated to developing pioneering solutions to restore movement and independence for individuals living with movement impairment, leveraging advanced technology and innovative approaches to therapy. NeuStim represents a remarkable integration of AI (artificial intelligence), highly focused stimulation bursts, and brain-computer interface (BCI) compatible technology, delivering unparalleled therapeutic benefits to users. With Neuvotion's devices, users can actively participate in their own therapy, while clinicians can utilize state-of-the-art technology to monitor patient progress both in-person and remotely. The research enabled by this stimulator is reshaping the conversation about how to treat and rehabilitate neural disorders and injuries, promising transformative outcomes for patients.

Medical Technologies
Industrial Design
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Key Challenges

The development of NeuStim presented myriad challenges and discoveries. Ensuring accurate measurements human arm sizes was essential for optimal stim pattern layout. Polyimide flex circuits cannot stretch to conform to movement so stim pad details were designed to allow it to conform to the arm and thumb in a wide rage of positions especially for supination and pronation.

Another essential goal was to make the stimulator flex circuit reusable by separating it from disposable stim pads. An array of magnets work as conductors connecting each individual stim source the over molded ruggedized flex circuit to the counterpart stim point on the disposable pads  allowing fast attachment and removal. Great effort was taken to ensure the magnets were secured robustly to each component leveraging solder and high bond epoxy.

Each flexor and extensor flex-PCBA were designed to have an array of localized ruggedization to allow for flexibility but prevent damage to component solder joints. This effort increased the reusability of the Stimulator flex circuits extending their functional life cycle.

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Our Process

NeuStim is meticulously designed with three stimulator pads — extensor, flexor, and thumb — specifically engineered to conform to the anthropometric geometry of the arm and hand, in a full range of positions. Each pad consists of two layers: a thin silver ink printed disposable substrate with hydrogel and an over-molded ruggedized flex circuit board assembly (PCBA). The over-molded PCBA magnetically attaches to the disposable, which adheres to the patient's skin with hydrogel. The wearable stimulator engine attaches to the pads via reconfigurable magnetic leads, allowing for any configuration of stim pads to be recognized by the firmware.

Artificial intelligence is leveraged to configure the pattern, intensity, and duration of stim pulses for each specific patient. Each stimulator flex PCBA and disposable pad is designed with a proprietary pattern of stimulation points and grounding arrays, precisely targeting muscle areas in the forearm and thumb. The stimulator scans through every stim point for each patient and records the muscle response to refine the individually correct stim pattern, ensuring personalized and effective therapy.

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Personal note

We are proud to partner with Neuvotion to help drive advancement in paralysis therapy, offering hope and transformative outcomes for patients. Neuvotion's commitment to innovative human centered design has resulted in a pioneering solution that redefines the possibilities for rehabilitation and neural disorder treatment. With NeuStim, Neuvotion continues to lead the way in restoring movement and independence for individuals living with movement impairments.

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