| 摘要 |
<p>An electrode assembly for sensing heart activity and especially heart activity from a fetal epidermis during the birth of a child, includes a rigid guide tube (10) with an intermediate universal joint (14) which allows the guide tube (10) to be bent at the best angle to accommodate each patient. The intermediate joint (14) allows a smooth transmission of the rotary motion manually applied at a distal handle (13) to drive the electrode (18) into the fetal epidermis. A sliding sleeve (19) covers the electrode (18), provides a bearing for rotation, proctects the electrode from contamination, and also serves as a resistance means to indicate to the user that the assembly has abutted against the fetal epidermis. Such resisting means includes either a detent or lockable system, or a breakable membrane.</p> |
