Neonatal hemolysis detection using end-tidal breath sampler and

Details Neonatal hemolysis detection using end-tidal breath sampler and Neonatal hemolysis detection using end-tidal breath sampler and

1993-10-12

1995-01-24

Pellegrino, Stephen C.

Surgery

Truss

Pad

128724, 128730, 73 233, A61B 508

Patent

active

053834690

ABSTRACT:
Apparatus for use in a hospital nursery, clinic, or physician's office for the sampling and analysis of neonatal end-tidal breath for carbon monoxide as an indication of hemolysis and subsequent infant jaundice includes a syringe and plunger for collecting end-tidal breath, a pump for supporting the syringe and including drive means for incrementally withdrawing the plunger and collecting end tidal breath, and a controller for the pump including a thermistor positionable to respond to the temperature of exhaled breath and generating an electrical signal in response to thermistor temperature. A rate detector receives the signal and determines exhalation rate. The signal is delayed in response to exhalation rate and then utilized to energize the pump in incrementally withdrawing the plunger in collecting end tidal breath. The pump can also be used in analysis equipment which extracts the end tidal breath sample with a sensor receiving the sample and determining carbon monoxide content. Alternatively, separate pumps can be employed for the sample collection and for the sample analysis.

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