Systems and methods for non-invasive detection and monitoring of cardiac and blood parameters

• US 20060100530A1
• Filed: 09/26/2005
• Published: 05/11/2006
• Est. Priority Date: 11/28/2000
• Status: Abandoned Application

• Current Assignee: PhysioSonics, Inc., University of Washington
• Original Assignee: Allez Physionix Ltd., University of Washington
• Inventors: Mourad, Pierre D., Kliot, Michel, Frederickson, Robert C.A., Forghani, Kamran
• Application Number:
  US11/234,914
• Publication Number:
  US 20060100530A1
• Time in Patent Office: Days
• US Class Current: 600/483
• CPC Class Codes: A61B 5/0002 Remote monitoring of patients using telemetry, e.g. transmission of vital signals via a communication network A61B5/07 takes precedence; transmission systems for measured values G08C; transmission H04B; transmission of digital information H04L; wireless communication networks H04W
• 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 5/08 Detecting, measuring or recording devices for evaluating the respiratory organs A61B5/0205 takes precedence
• 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 5/681 Wristwatch-type devices
• CPC Class Codes: A61B 5/6814 Head
• CPC Class Codes: A61B 5/6822 Neck
• CPC Class Codes: A61B 5/6828 Leg
• CPC Class Codes: A61B 5/6831 Straps, bands or harnesses
• 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 8/0816 using echo-encephalography
• CPC Class Codes: A61B 8/4472 Wireless probes
• CPC Class Codes: A61B 8/485 involving measuring strain or elastic properties
• CPC Class Codes: A61B 8/543 involving acquisition triggered by a physiological signal
• CPC Class Codes: A61B 8/56 Details of data transmission or power supply
• CPC Class Codes: A61B 8/58 Testing, adjusting or calibrating the diagnostic device

Abstract

Methods and systems for long term monitoring of one or more physiological parameters such as respiration, heart rate, body temperature, electrical heart activity, blood oxygenation, blood flow velocity, blood pressure, intracranial pressure, the presence of emboli in the blood stream and electrical brain activity are provided. Data is acquired non-invasively using ambulatory data acquisition techniques.

Claims

1. A system for long term monitoring of least one of the following physiological parameters:

respiration, heart rate, body temperature, electrical heart activity, blood flow velocity, blood pressure, intracranial pressure (ICP), presence of emboli to the brain and other parts of the body or other blood flow-related irregularities, such as stenoses or vasospasm, electrical brain activity, and blood oxygen composition or partial pressure (O₂, CO₂) comprising at least one noninvasive data acquisition device for acquiring data relating to at least one of the physiological parameters communicating with at least one data recording and storage device for recording and storing data relating to one of the physiological parameters.

2. A method for long term monitoring of embolic events in the bloodstream comprising acoustically scanning a tissue volume including a carotid artery and acquiring scanning data relating to the acoustic properties of the tissue volume, selecting at least one desired target carotid artery vessel site based on the scanning data, insonifying the at least one desired target carotid artery vessel site and acquiring acoustic data from the at least one insonified target carotid artery vessel site, and recording, storing and monitoring the acquired acoustic data to identify embolic events.