| 摘要 |
<p>An instrument for monitoring foetal heart rate having a head member (2) for application to the foetal scalp, the head member (2) having two jaws (24,25) which are hingedly connected to one another, the first jaw (24) having an arcuate electrically conductive needle (9) extending therefrom and movable therewith for penetration of the foetal scalp. A wire (6) extends from the needle (9) to a terminal for connection to monitoring equipment. A second wire (7) is insulated from the first (6) and extends between an exposed electrode sheath (11), for contacting the mother in use, and a terminal for connection to monitoring equipment. The instrument also has actuating means, in the form of a telescopic arrangement of elongate members (1,15), for moving the jaws (24,25) apart. The jaws (24,25) are moved back to a preselected attitude by the bias provided by a resilient membrane (27).</p> |
