| 摘要 |
PCT No. PCT/DE86/00504 Sec. 371 Date Aug. 11, 1987 Sec. 102(e) Date Aug. 11, 1987 PCT Filed Dec. 10, 1986 PCT Pub. No. WO87/03466 PCT Pub. Date Jun. 18, 1987.The invention is directed to a device for the determination of the change in the mechanical magnitudes during muscular contraction and for the correlation with the change in the electrical magnitudes of nerve and muscle during muscular contraction. The body part with joint, which is to be investigated, is attached to a bolster (2) which rotates sagittally and is supported by means of axles (7, 8) on a line coinciding with the axis of rotation of the joint. An electromagnetically controlled functional coupling (10) and an electric motor (9) are connected to the axle (7) so as to be controllable, and horizontally extending flexure beams (27, 28), with stress measurement strips (29, 30), are fastened at the longitudinal sides of the electric motor (9). A potentiometer (11) and a torque measurement strip (31) are arranged on the axle (8). Electrodes (49, 50 and/or 51, 52) are arranged above the contracting muscle or its nerve and/or a stethoscope head (53), with a microphone (54) coupled thereto, is arranged above the muscle. Stress measurement strips (29, 30), potentiometer (11), electrodes (49, 50, 51, 52) and stethoscope/microphone (53, 54) are connected with an electric amplifier (40), and the latter is connected with a recording device (41). The muscle is excited by means of an electric stimulus current stimulator (39) and surface electrodes (42). For the investigations of muscular contraction in smaller joints and muscles (e.g. in the hand), a rotatable frame is proposed as a further development, which consists of U-shaped structural component parts (69, 72), which are connected with one another and have shared axles (68), and is attached to the investigated body part (e.g. thumb) with the axles (68) on a horizontal line with the axis of articulation. The potentiometer (11) and the torque strips (31) are located on the axles (68). During the contraction of the muscle, the frame presses on the frame construction (80, 81, 82), which comprises a pressure plate (78), which is vertically movable in the latter, and a pressure spring (79), via a lever (75) with a double roller (77) which runs in defined cam guides (87).
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