Accession Number : AD0765369

Title :   Instruction Manual for the I.E.M.P. Doppler Ultrasonic Precordial Blood Bubble Detector.

Descriptive Note : Final rept. 1 Nov 71-31 Dec 72,

Corporate Author : INSTITUTE OF ENVIRONMENTAL MEDICINE AND PHYSIOLOGY SEATTLE WASH

Personal Author(s) : Spencer,Merrill P. ; Johanson,David C. ; Clarke,Howard F.

Report Date : 15 FEB 1973

Pagination or Media Count : 48

Abstract : A report detailing the operation of a 5 MHz Doppler ultrasonic bubble detector developed for use in detection of venous gas emboli formed in the blood of divers during decompression as well as for monitoring craniotomies, cardiopulmonary bypass equipment and other medical procedures where there is danger of aeroembolism. A precordial sensor employing 1/2 inch square resonant transmitting and receiving crystals separated by 2 cm and focused 2-7 cm retrosternal is employed for the detection of all gas emboli returning in the weins to the right heart and lungs, the precordial sensor being positioned to the left of the midsternal border over the pulmonary artery and right ventricle. Additional monitoring of the peripheral vasculature through the use of specialized probes is also described. (Author)

Descriptors :   (*GAS EMBOLISM, DETECTORS), (*DOPPLER SYSTEMS, GAS EMBOLISM), (*DECOMPRESSION SICKNESS, DETECTORS), MONITORS, DETECTORS, PROBES, ULTRASONIC PROPERTIES, SURGERY, DIVING

Subject Categories : Stress Physiology
      Biomedical Instrumentation and Bioengineering

Distribution Statement : APPROVED FOR PUBLIC RELEASE