Radially compressible and expandable rotor for a fluid pump
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United States of America Patent
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Feb 27, 2018
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app pub date -
Apr 29, 2016
filing date -
Dec 23, 2009
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Abstract
In a rotor for a fluid pump which is made radially-compressible and expandable and has a hub (4) and at least one conveying element (10, 11, 19, 20) which has a plurality of struts (12, 13, 14, 15, 16, 21, 22, 27, 28) and at least one membrane (18) which can be spanned between them, provision is made for a design in accordance with the invention which is as simple and inexpensive as possible that at least one first group of struts is pivotable in a pivot plane, starting from a common base, and can thus be spanned open in the mummer of a fan, wherein the conveying element lies along the hub and contacts it over its fall length in the expanded state to avoid a pressure loss at the margin of the conveying element between it and the hub and thus to realize an optimum efficiency.
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