| 摘要 |
<p>An electrode unit for use in electrotherapy comprises a cup (14) that is collapsed by suction applied to a pipe (12) that forms the stem of an electrode disc (10). Conduits (21) communicate the inside of the cup through a boss (18) with the atmosphere through a groove (15). A sleeve (19) extends from the boss and has circumferential rib or flange (20). It can be folded back to engage flange (20) into groove (15) to block off the conduits (21) and permit the cup to collapse when the rim of the cup is placed against the body of a patient and suction is applied and it can be lifted up to admit air into the conduits (21) and release the cup.</p> |
