INTRA-AORTIC BALLOON APPARATUS, ASSIST DEVICES AND METHODS FOR IMPROVING FLOW, COUNTERPULSATION AND HAEMODYNAMICS
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United States of America Patent
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Issued Date -
Mar 21, 2019
app pub date -
Jun 12, 2018
filing date -
Jun 12, 2018
priority date (Note) -
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Abstract
A circulatory assist apparatus comprising: an inflatable pumping balloon having a proximal end joined to an elongated balloon catheter, the balloon catheter having a distal end joined to the pumping balloon and a proximal end, separated from the distal end by a length sufficient to extend from within a circulatory lumen to the outside of a patient's body, for receiving positive and negative pressure pulses from a pump to inflate and deflate the pumping balloon; and a radially expandable frame, mounted on one of a segment extending distally from the pumping balloon, the balloon catheter, and a sleeve tube surrounding the balloon catheter. The expandable frame is manipulate to expand within the circulatory lumen, and functions to space apart the inflatable balloon from the circulatory lumen, having a first diameter in a collapsed configuration for intraluminal delivery and a second, larger diameter in an expanded configuration achieved by said manipulation.
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