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The IMPELLA 2.5 PLUS Catheter is intended for partial circulatory support using an extracorporeal bypass control unit, for periods up to 6 hours. It is also intended to be used to provide partial circulatory support (for periods up to 6 hours) during procedures not requiring cardiopulmonary bypass. The IMPELLA 2.5 PLUS Catheter also provides pressure measurements which are useful in determining intravascular pressure.

The Impella 2.5 Plus is an update to the design of the IMPELLA 2.5, which was cleared by the FDA in 2008 (under K063723). The predicate device, the IMPELLA 2.5, and the Impella 2,5 Plus have identical designs and materials of construction. The only design modifications made to the IMPELLA 2.5 for the Impella 2.5 Plus are slight increases in the diameters of the inflow can ula impeller and pump housing (from 12 F to 14 F). As a result of this increase, the Impella 2.5 Plus has approximately 30% higher flow than the IMPELLA 2.5.