Search

Terrance Echard Phones & Addresses

  • Lafayette, IN
  • Wabash, IN
  • Nineveh, IN
  • Tippecanoe, IN
  • Indianapolis, IN
  • W Lafayette, IN
  • 2918 Browning St, West Lafayette, IN 47906

Publications

Us Patents

Method And Apparatus For Determining A Rate Of Flow Of Blood For An Extracorporeal Blood Therapy Instrument

View page
US Patent:
49952684, Feb 26, 1991
Filed:
Sep 1, 1989
Appl. No.:
7/402073
Inventors:
Stephen R. Ash - Lafayette IN
Terrance G. Echard - West Lafayette IN
Assignee:
Ash Medical System, Incorporated - West Lafayette IN
International Classification:
G01F 1704
US Classification:
7386105
Abstract:
Method and apparatus for determining the flow rate of blood passing between a patient and an extracorporeal therapy instrument. The flow measurement apparatus includes a delivery unit for producing a saline bolus interface at a first position of a measurement channel having a predetermined volume between the first and second position. A sensor unit included in the apparatus detects the saline bolus interface as it passes the second position in the channel. An output signal from the sensor unit along with an indication of the production of the saline bolus interface is utilized by a control unit to determine the blood flow rate. The control unit of the apparatus utilizes instantaneous and average blood flow algorithms to calculate instantaneous and average blood flow rates based on the time interval associated with the production of the saline bolus interface and its progression to a predetermined position in the measurement channel. Successive interfaces are also produced in the blood flow to derive an average blood flow rate.
Terrance G Echard from Lafayette, IN, age ~65 Get Report