Bionic machine socks, a new invention to prevent deep vein thrombosis
Release date: 2015-02-12
Patients who have been in bed for a long time or who are unable to move their legs often develop deep vein thrombosis (DVT). Researchers from the National University of Singapore (NUS) Yong Loo Lin School of Medicine and Engineering have invented a new type of sock that can help prevent deep vein thrombosis and improve patient survival.
Because it is equipped with a soft brake that mimics the movement of coral tentacles, the machine sock simulates the natural contraction of the wearer's calf muscles, thereby promoting blood circulation throughout the wearer's body. In addition, the novel device can record the motion of the patient's lower leg to improve the treatment plan.
Current methods of preventing DVT mainly include the use of anticoagulant drugs and mechanical methods of using compression stimuli to stimulate blood flow. Although the drug method is effective in preventing DVT, there is a risk of excessive bleeding, especially in patients suffering from hemorrhagic stroke, which may result in death. On the other hand, currently available mechanical methods, such as compression stockings, do not significantly reduce the risk of DVT.
Researchers are trying to develop a device that mimics the movement of the ankle of humans. They found coral tentacles - soft structures that stretched to capture food and shrink, making food easy to digest, and invented a soft brake that mimics this "push, pull" mechanism.
With a combination of socks and a programmable pneumatic pump control system, the new invention produces robot-assisted ankle movements that promote blood flow in the legs. Machine socks can be used to supplement routine ankle exercises to optimize treatment time and effectiveness. In addition, the socks can be worn for long periods of time, and the socks are also embedded with sensors to track changes in the ankle angle for better treatment monitoring.
Professor Yeow of the research team said: "Because of its small size, modular design and ease of use, soft robotic socks can be used in hospital wards and rehabilitation centers even in patients who are bedridden to prevent DVT in stroke patients. By reducing DVT Risk, we hope to improve the survival rate of these patients."
To further investigate the effectiveness of robotic socks, Professor Yeow and his colleagues will conduct clinical trials and experiment with approximately 30 patients who have been hospitalized for more than six months at the National University Hospital. It is hoped that clinical trials will help them gain patient and clinical feedback and further refine their design and equipment capabilities.
Original link: http://news.bioon.com/article/6665918.html
Source: Bio Valley
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