The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 27, 1997
Filed:
Dec. 28, 1994
Willem J Kolff, Salt Lake City, UT (US);
N Dan Bishop, Salt Lake City, UT (US);
Stephen R Topaz, Salt Lake City, UT (US);
Ban Y Chiang, Salt Lake City, UT (US);
University of Utah Research Foundation, Salt Lake City, UT (US);
Abstract
A mock circulation system is provided including a collapsible housing having a plurality of channels formed therein so as to represent the arteries, veins and organs of a human circulatory system. A pair of artificial ventricles are connected to the housing and pump fluid through the housing so as to develop circulation within the housing. By using a plurality of flow-restricting devices, and by modifying the pumping of the artificial ventricles, a variety of circulatory conditions (both healthy and pathogenic) can be simulated within the system. In accordance with the principles of the invention, cardiac massage may be demonstrated by manually squeezing the artificial ventricles. In accordance with another principle of the invention, Starling's Law Curves may be generated to show that cardiac output is determined by venous pressure.