Finger apparatus for measuring continuous cutaneous blood pressu

Details Finger apparatus for measuring continuous cutaneous blood pressu Finger apparatus for measuring continuous cutaneous blood pressu

1993-09-20

1996-04-30

Zele, Krista M.

Surgery

Truss

Pad

128639, 128666, 128667, A61B 502

Patent

active

055115462

ABSTRACT:
Apparatus for continuously and non-invasively monitoring and measuring various biochemical and biophysical functions through the finger of a patient. The apparatus of the present invention comprises a highly stable finger attachment device for maintaining one or more sensing monitors such as a pressure transducer (or similar pressure measuring device) or electrode against the fleshy part of the finger. The increased stability of the finger attachment device is accomplished by taking advantage of the anatomical structure of the middle phalanx of a finger. The finger attachment device has an upper and a lower arm attached to each other by a hinge, so that when closed, protuberances from each arm fit snugly into the natural concavities of the middle phalanx thereby holding the finger firmly and providing a high level of mechanical stability and thus reducing pulse waveform distortion and any other "noise" or motion artifact due to instability. The stability of the finger attachment assembly permits the use of a sensing monitor that is pressure sensitive such as an isolation ring pressure transducer and also an electrocardiograph electrode for taking an electrocardiogram through the finger of a patient.

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