| 摘要 |
FORCE SWITCH A mechanical force switch (1) to be disposed along a longitudinal device axis (2) 5 of a medical device includes an electrically conductive switching piston (10) to form a first electrical contact of the switch (1), a hollow body, and end stop, a bias device, and an electrically conductive second contact of the switch (1) electrically insulated from the piston (10). The piston (10) is movably disposed in the body hollow along the axis to define different switch-making and -breaking positions. The piston (10) is also movably 10 disposed in a cavity of the stop and the stop is disposed in the body. The stop can be a smooth or threaded puck. The bias device (50) surrounds the piston (10) and imparts bias against it to retain it in one of the two positions until an external axis force overcomes the bias, at which time the switch (1) indicates a state changeover. The switch (1) can be normally open or closed. |
