1
Richard K Wampler, John W Carriker, Kenneth C Butler, John C Moise: Single-stage axial flow blood pump. Nimbus Medical, Weissenberger & Peterson, July 11, 1989: US04846152 (240 worldwide citation)

A miniature high-speed intravascular blood pump is formed as a single stage with two rows of rotor blades and a single row of stator blades within a tubular housing. The rotor's first row produces a mixed centrifugal and axial flow, while the rotor's second row produces a purely axial flow. The blad ...


2
John C Moise, Richard K Wampler, Kenneth C Butler: Chronic ventricular assist system. Nimbus Medical, Weissenberger & Peterson, March 13, 1990: US04908012 (229 worldwide citation)

An implantable ventricular assist system uses a small high-speed axial flow blood pump which may be grafted into the patient's circulatory system. The pump includes a blood tube in which the pump rotor and stator are coaxially contained, and a motor stator surrounding the blood duct. A permanent mag ...


3
John C Moise: Magnetically suspended rotor axial flow blood pump. Nimbus Medical, Weissenberger & Peterson, October 25, 1988: US04779614 (224 worldwide citation)

An implantable axial flow blood pump maximizes the blood flow while minimizing the dimensions of the pump. By magnetically suspending a rotor of relatively small diameter coaxially in a cylindrical blood conduit of substantially larger inner diameter, an adequate flow area through the pump is provid ...


4
John C Moise: Anti-thrombogenic blood pump. Nimbus, Weissenberger & Peterson, November 3, 1987: US04704121 (200 worldwide citation)

Thrombus formation in an implantable blood pump is prevented by using a close-tolerance purge seal for the impeller shaft or rotor. A blood-compatible fluid is used for the purge fluid (which is preferably also the bearing fluid), and the purge flow into the blood stream presents to the blood stream ...


5
John C Moise, John W Carriker, Reginald R Baxter: Drive mechanism for powering intravascular blood pumps. Nimbus Medical, Weissenberger & Peterson, January 23, 1990: US04895557 (174 worldwide citation)

A disposable, sterilizable cable drive unit for an intravascular blood pump includes a rotor enclosed in a fluid-tight enclosure which can be slipped into the stator of a drive motor. The unit is connectable to a constant-rate purge fluid supply and to a dual-lumen cable sheath. One lumen provides a ...