1
Ralph M Kerns, Bernardino Rubalcaba Jr, Donald E Bobo, Kenneth W Rake, Robert R Weyant: Centrally managed modular infusion pump system. American Hospital Supply Corporation, Weissenberger & Peterson, July 12, 1988: US04756706 (281 worldwide citation)

A plurality of infusion pump modules are detachably connected to a portable central management unit. The modules can be programmed by the central management unit, and their operating information displayed by the central management unit, when they are connected to it; yet the modules, once programmed ...


2
Richard K Wampler: Percutaneous bloom pump with mixed-flow output. Nimbus Medical, Weissenberger & Peterson, April 4, 1989: US04817586 (241 worldwide citation)

The outside diameter of an intravascular axial flow blood pump is reduced without reducing the size of its journal bearings by causing the pumped blood stream to exit through apertures in the cylindrical outside wall of the pump housing between the rotor blades and the rotor journal. This allows the ...


3
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 ...


4
Richard K Wampler: High-frequency transvalvular axisymmetric blood pump. Nimbus Medical, Weissenberger & Peterson, March 6, 1990: US04906229 (234 worldwide citation)

A high-frequency transvalvular blood pump for temporary cardiac assist provides suction to decompress the ventricular cavity during both systole and diastole. The intake end of the pump is connected to a cannula which is inserted into the ventricular cavity through the aortic valve, and which has an ...


5
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 ...


6
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 ...


7
Richard P Jacks, Richard P Sprague: Real-time text-to-speech conversion system. First Byte, Weissenberger & Peterson, September 8, 1987: US04692941 (207 worldwide citation)

A high-quality, real-time text-to-speech synthesizer system handles an unlimited vocabulary with a minimum of hardware by using a microcomputer-software-compatible time domain methodology which requires a minimum of memory and computational power. The system first compares test words to an exception ...


8
John W Carriker, Richard K Wampler: Percutaneous axial flow blood pump. Nimbus Medical, Weissenberger & Peterson, July 31, 1990: US04944722 (203 worldwide citation)

The reliability and compactness of a percutaneously insertable intravascular axial flow blood pump are improved by connecting the pump's rotor and drive cable through a resiliently extendable rotor extension. The rotor extension and drive cable fitting are so designed that the thrust bearing surface ...


9
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 ...


10
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 ...