Design of biomimetic Limb for restoring Hand Function of Partially Amputed People

Biomimetic limbs have a tremendous demand for the partially amputee people. To increase their moral strength and easy way to perform daily works, researchers are putting lot of effort in the work efficiency of biomimetic limbs. Partial amputation generally refers to removal of parts of limb due to trauma, medical illness or surgery. This biomimetic limb helps such people to gain better psychological outlook in life. Most of the EEG and EMG prosthetic hands have several shortcomings such as low intensity, high cost and blocked them from practical realization. The present proposal proposes a novel method of providing a user friendly and cost effective device for partially amputed people. To overcome these problems the present work used flex sensors which can replicate the function of original hand using a hand glove placed over the working hand. The program of the device was done by using an Arduino microcontroller and to achieve the flexibility of up to 90 degrees servo motors were used. This novel device can help a partially amputed person to lead a normal life in society and gain his self-esteem. The cost of the device is three times low as compared to the marketed device which has less option and heavy weight. This cost effective device was designed with limited number of sensors and motors in order to achieve its compactness and it would also produce more number of hand movements much similar to the original hand.