Novametrix Medical Systems, Inc.

Corometrics Medical Systems, Inc.

Simon W Thomas

Herbert Fred D'Alo

Elizabeth K Siegelman

Leslie E Mace

Debra L Reisenthel

William R Pruehsner

A fetal pulse oximetry sensor device containing a pulse oximetry sensor is disclosed. The device also includes a spiral for fetal attachment. One or both of the light emitting portion and light detecting portion of the pulse oximetry sensor is spring biased to be moveable with respect to the body of the device. Alternatively, the light emitting portion and light detecting portion may be mounted within the housing of the device, with the housing being spring biased towards the fetal skin. In this manner, the pulse oximetry sensor is maintained in intimate contact with the fetal tissue. This provides for accurate oximetry measurements since the errors due to the detection of unattenuated or non-absorbed light passing directly from the light emitter to the light detector, are significantly reduced. The fetal attachment spiral may also include a fetal EKG electrode, in which case the device may be used as both a fetal pulse oximeter and a fetal heart rate monitor.

Fetal pulse oximetry sensor

A probe system for removable attachment to a patient in which the probe containing light emitter and detector elements is separable from a fastener for securing the probe to the skin of a patient to enable the fastener to be discarded and the probe reused. Apertures in the fastener complementary to the probe housings enable secure stabilization of the probe system on the skin and maintain a fixed relationship between the light emitter and detector elements.

Reusable probe system

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New Haven, CT, United States of America

Simon W Thomas