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Robotic sock prevents blood clots in legs

11 Feb 2015

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Explaining the choice of materials, Low said, "We chose to use only soft components and actuators to increase patient comfort during use, hence minimising the risk of injury from excessive mechanical forces. Compression stockings are currently used in the hospital wards, so it makes sense to use a similar sock-based approach to provide comfort and minimise bulk on the ankle and foot."

The sock complements conventional ankle therapy exercises that therapists perform on patients, thereby optimising therapy time and productivity. In addition, the sock can be worn for prolonged durations to provide robot-assisted therapy, on top of the therapist-assisted sessions. The sock is also embedded with sensors to track the ankle joint angle, allowing the patient's ankle motion to be monitored for better treatment.

Said Yeow, "Given its compact size, modular design and ease of use, the soft robotic sock can be adopted in hospital wards and rehabilitation centres for on-bed applications to prevent DVT among stroke patients or even at home for bedridden patients. By reducing the risk of DVT using this device, we hope to improve survival rates of these patients."


Plans for clinical studies and commericalisation underway

To further investigate the effectiveness of the robotic sock, Lim, Yeow and Low will be conducting pilot clinical trials with about 30 patients at the National University Hospital for over six months, starting March 2015. They hope that the pilot clinical trials will help them to obtain patient and clinical feedback to further improve the design and capabilities of the device.

The team intends to conduct trials across different local hospitals for better evaluation, and they also hope to commercialise the device in future.


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