Accession Number:

AD0702301

Title:

RESEARCH IN HYDRODYNAMIC PROBLEMS IN BLOOD FLOW.

Descriptive Note:

Final scientific rept. 1 Dec 65-30 Nov 69,

Corporate Author:

AVCO EVERETT RESEARCH LAB EVERETT MASS

Personal Author(s):

Report Date:

1970-01-30

Pagination or Media Count:

80.0

Abstract:

Results of studies of blood flow with particular application to the effects of artificial pumping devices are presented. Hydrodynamic analyses were made, and were confirmed empirically by means of a physical circulation model of the heart and of the aorta. The windkessel theory of aortic function is corrected for dynamic impedance of the artery. The effectiveness of arterio-arterial pumps to assist the heart is appraised. Hydrodynamic considerations impose limitations on the design of intra-aortic balloon pumps A balloon of simple design will inflate first at the ends and may occlude the artery so as to limit its pumping effectiveness. A method of controlling the inflation of the balloon is suggested and calculated aortic pressures for a balloon with controlled inflation are presented. Author

Subject Categories:

  • Anatomy and Physiology
  • Medical Facilities, Equipment and Supplies
  • Fluid Mechanics
  • Biomedical Instrumentation and Bioengineering

Distribution Statement:

APPROVED FOR PUBLIC RELEASE