DOPPLER MOTION SENSOR APPARATUS AND METHOD OF USING SAME

• US 20090048518A1
• Filed: 09/09/2008
• Published: 02/19/2009
• Est. Priority Date: 12/10/2006
• Status: Abandoned Application

• Current Assignee: CardioArt Technologies Ltd.
• Original Assignee: CardioArt Technologies Ltd.
• Inventors: Furman, Dan Gur
• Application Number:
  US12/206,885
• Publication Number:
  US 20090048518A1
• Time in Patent Office: Days
• US Class Current: 600/454
• CPC Class Codes: A61B 5/0008 Temperature signals
• CPC Class Codes: A61B 5/0031 Implanted circuitry
• CPC Class Codes: A61B 5/0205 Simultaneously evaluating both cardiovascular conditions and different types of body conditions, e.g. heart and respiratory condition
• CPC Class Codes: A61B 5/0245 by using sensing means generating electric signals, i.e. ECG signals
• CPC Class Codes: A61B 5/145 Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissuemeasuring of blood pressure or blood flow A61B5/02; non-radiation detecting or locating of foreign bodies in blood A61B5/06
• CPC Class Codes: A61B 8/02 Measuring pulse or heart rate
• CPC Class Codes: A61B 8/04 Measuring blood pressure
• CPC Class Codes: A61B 8/06 Measuring blood flow measuring volume flow in general G01F, e.g. G01F1/66, G01F1/72; measuring speed of fluids in general G01P5/00
• CPC Class Codes: A61B 8/12 in body cavities or body tracts, e.g. by using catheters catheters per se A61M25/00
• CPC Class Codes: A61B 8/4472 Wireless probes
• CPC Class Codes: A61N 1/37 Monitoring; Protecting
• CPC Class Codes: A61N 1/3925 Monitoring; Protecting

Abstract

An apparatus for, and method of, sensing characteristics of a vessel and a fluid conveyed therein.

Claims

1. A sensing device configured to measure blood pressure, including:

a Doppler sensor having a plurality of transducers for emitting source waves and detecting reflected waves, the Doppler sensor having an associated reference location;

an optical sensor including a plurality of emitters and a plurality of detectors for generating a plurality of signals representing a first distance between the reference location and a near wall of the vessel and a second distance between the reference location and a far wall of the vessel; and

a computing device configured to, for each of a plurality of pressure calculations, determine the first and second distances to compute an area of the vessel and to determine a segment of a transducer that detects reflected waves from blood flowing through the vessel to thereby determine the velocity of the blood, the velocity and area being used to compute blood pressure.