Device for measuring length variation in biological tissue in rotator cuff at knee joint of patient, has bifilar windings whose ends are fixed with active sensor coil, and passive sensor coil whose winding beginnings form supply terminals

摘要

The device has two solenoids whose final-side winding ends are provided with certain diameters (D1, D2) and connected with an electrically conductive connection wire (3). A passive sensor coil (B) i.e. bifilar coil, is made of an electrical conductive material in bifilar windings (4, 5). Final-side winding ends of the bifilar windings are connected with beginnings of windings (1, 2) of an active sensor coil (A) with an electrical conductive bridge connector (6). Winding beginnings of the passive sensor coil of the bifilar windings form supply terminals (7).