Instrument for continuously monitoring fetal heart rate and intermittently monitoring fetal blood pH and method of use
OwnerClaude R. Swayze, James W. Halvorson +3inventors
InventorsClaude R. Swayze, James W. Halvorson, Roy G. Bryan, Rollyn P. Lee, Dale Gerasch
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Abstract
A medical instrument which permits the continuous monitoring of fetal ECG and intermittent monitoring of fetal scalp blood pH during labor and delivery. The instrument includes (i) an electrically conductive needle effective as an ECG electrode, (ii) a plurality of pH probes or a single reusable and rotatable pH probe, (iii) a system for flushing the area around the pH probe prior to sampling, and (iv) a sharp proximate each probe for producing an extracorporeal fetal scalp blood sample to be measured.
Claims13
A unitary instrument providing continuous electrical and intermittent chemical monitoring of a fetus, comprising:
- (a) an electrically conductive needle;
- (b) a plurality of spatially segregated pH probes;
- and
- (c) a remotely operable sharp for producing blood samples proximate each said probe.
Dependencies are inferred from the claim text.