Fetal heart monitor leg plate electrode
 A leg plate for fastening to an expectant mother's skin interconnects electrodes at the fetal scale with an external heart rate monitor and also senses voltage at the maternal skin to enable elimination of the maternal heartbeat from the output data. The leg plate has a base member with a pair of recesses into which the two output wires of the fetal scalp electrode attachment may be inserted and two hinged snap action covers which may be separately pivoted to close the recesses and to clamp the wires against internal contacts. Output cable conductors connect with the contacts and with a sensing electrode on the underside of the leg plate. The base member, cover and hinges are unitary portions of a single plastic molding enabling the leg plate to be compact, inexpensive and disposable after a single use. In the preferred form, a peelable fluid tight sheet covers a layer of electrically conductive adhesive on the underside of the leg plate enabling quick and simple attachment of the device to the maternal skin. 
EMS Products, Inc.
A A
A61B A61B
inventional inventional
Paul Thanh
Ulbrich Tran