Device and method for determining coronary blood flow

The present invention relates to a device and method for measuring a blood flow through a coronary system of a heart. It was realized that said blood flow causes a temporary change in the impedance of the coronary system, in the form of a peak in a first time-derivative of the impedance signal. The...

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Bibliographische Detailangaben
1. Verfasser:	JUDY WILLIAM V
Format:	Patent
Sprache:	eng
Schlagworte:	DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROMTHE BODY DIAGNOSIS HUMAN NECESSITIES HYGIENE IDENTIFICATION MEDICAL OR VETERINARY SCIENCE SURGERY
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Beschreibung
Zusammenfassung:	The present invention relates to a device and method for measuring a blood flow through a coronary system of a heart. It was realized that said blood flow causes a temporary change in the impedance of the coronary system, in the form of a peak in a first time-derivative of the impedance signal. The method comprises measuring an impedance signal across the body region containing the coronary system as a function of time, determining a first derivative of the impedance signal with respect to time, and calculating the blood flow from a peak height of a certain peak signal in said derivative impedance signal. The device comprises a bioimpedance measuring device adapted for the method.