Method for measuring recirculation in catheters
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United States of America Patent
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Sep 3, 2013
Grant Date -
Nov 4, 2010
app pub date -
Jul 19, 2010
filing date -
Nov 10, 2004
priority date (Note) -
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Abstract
A system and method for measuring recirculation of blood in a catheter designed for implantation in a human is described. In one variation, the system comprises an artificial circulatory system and an ultrasonic detection device for measuring and comparing the density of a circulated blood simulant with a later introduced bolus saline. The system may be configured to simulate a human heart by providing the flow, pressure and dimensions of a typical human heart. In addition to simulating the circulatory system of a normal human heart, the system may also be configured to simulate particular negative conditions of a patient, such as stenotic condition, which would affect the recirculation measurement.
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