ELECTROMECHANICAL HAND Russian patent published in 2018 - IPC A61F2/54 A61F2/56 A61F2/72 

FIELD: medicine.

SUBSTANCE: invention relates to medicine. Electromechanical prosthesis hand for prosthetics of the arm at the level of the forearm contains a body, a receiving sleeve, skeletons of the first, second, third, fourth fingers and the fifth finger, made in the form of an elastic link, and the mechanism of movement of the hand with microelectro drives. Frame of the first finger is fixed on the first axis of rotation, the skeleton of the third finger and the skeleton of the fourth finger are fixed on the second axis of rotation. First axis of rotation and the second axis of rotation are fixed in the housing. Frame of the second finger is fixed in the carcass of the third finger with the help of the third axis of rotation. Frame of the fourth finger and the fifth finger are made in the form of a single block, in which the lining of the carcass of the fourth finger is made integrally with the lining of the fifth finger. Mechanism of movement of the hand is made in the form of a grip mechanism, an escape mechanism and a rotation mechanism. Grip mechanism is made in the form of the first microelectrodrive equipped with a microcontroller of the gripping mechanism and the executive body of the gripper mechanism of the first, second and third finger frames. First microelectrodrive and the microcontroller of the gripper mechanism are located in the casing of the gripper mechanism, while the gripper body is rigidly fixed in the casing. Withdrawal mechanism is made in the form of a second microelectrodrive fixed to the frame of the third finger and equipped with a microcontroller of the withdrawing mechanism and an executive organ of the withdrawal mechanism of the second from the third armature of the fingers. Microcontroller of the withdrawing mechanism is located on the casing of the gripping mechanism, and the rotation mechanism is made in the form of a third microelectrodrive equipped with a microcontroller of the rotation mechanism and an executive organ of the rotation mechanism of the hand. Third microelectrodrive and the microcontroller of the rotation mechanism are fixed inside the rotary mechanism housing. Receiving sleeve is fixed to the rotary mechanism housing, the rotary mechanism housing rigidly attached to the housing. All three microelectro drives are connected to hand control system fixed to the autonomous power supply unit located on the rotary mechanism housing and equipped with a control unit for the autonomous power supply unit. Receiving sleeve has electrodes for picking up the signal of muscle activity associated with hand control system, which is connected with the microcontroller of the gripping mechanism, microcontroller of the lead mechanism and microcontroller of the rotation mechanism.

EFFECT: invention provides reduction in the time for performing motor operations when using a prosthesis.

3 cl, 6 dwg