JOHN PACELLA, MD
Osteopathic Medicine in Pittsburgh, PA

6808482, Oct 26, 2004

Sep 22, 2000

09/668090

John J. Pacella - Pittsburgh PA
Andrew H. Goldstein - Rochester NY
Dennis R. Trumble - Pittsburgh PA
Richard E. Clark - Sewickley PA
Fred W. Moeller - McKeesport PA
George J. Magovern - Pittsburgh PA

Allegheny-Singer Research Institute - Pittsburgh PA

A61M 110

600 16

A blood pump device comprises a blood pump having blood transport ports, cannulae connected to the ports, and a coating material covering the junction between the inner surfaces of the ports and cannulae. This forms a smooth transition so blood can flow unimpeded therefrom and collection cavities for the blood are eliminated. Also included is a method for producing a smooth coating. The blood pump device comprises a second portion including a stator mechanism, a rotor mechanism, an impeller, a journal, and a seat member. The second portion is constructed to pump blood through the cannulae when power is provided. The blood pump device is also equipped with a safety occluder device, a sensor for detecting back emf in the stator mechanism, and a controller having the capability of indicating stator current and rotor speed.

2005000, Jan 6, 2005

Jul 16, 2004

10/892656

John Pacella - Pittsburgh PA, US
Andrew Goldstein - Branford CT, US
Dennis Trumble - Pittsburgh PA, US
Richard Clark - Sewickley PA, US
Fred Moeller - McKeesport PA, US
George Magovern - Pittsburgh PA, US

A61N001/362

600016000

The present invention pertains to a blood pump device which comprises a blood pump having blood transport ports and cannulae connected to the ports. The blood pump device also comprises a coating material covering the junction between the inner surfaces of the ports and cannulae. This forms a smooth transition so blood can flow unimpeded therefrom and collection cavities for the blood are eliminated. The invention is also related to a method of producing a smooth coating. The present invention is a blood pump device comprising a second portion having a stator mechanism and a rotor mechanism disposed adjacent to and driven by the stator mechanism. The second portion has a journal disposed about the rotor mechanism to provide support therewith. The second portion has an impeller disposed in the chamber and a one-piece seal member for sealing about a shaft of the impeller. The seal member is fixedly attached to the journal so that the seal member is supported by the journal. The present invention is also related to means for providing power to the blood pump so that blood can be pumped through a cannulae. The providing means includes a controller having means for sensing pump failure and an output terminal for actuating a safety occluder in an event of pump failure. Preferably, there is a safety occluder device disposed about the cannulae and in communication with the output terminal. Preferably, the blood pump comprises a motor having stator mechanism and a rotor mechanism driven by the stator mechanism. The sensing means comprises means for determining back electromagnetic force within the stator mechanism. Preferably, the controlling means has means for providing signals indicate of stator current and rotor speed, respectively. The providing means is in communication with the means for determining back electromagnetic force in the stator mechanism.

5711753, Jan 27, 1998

Mar 18, 1996

8/618084

John J. Pacella - Pittsburgh PA
Andrew H. Goldstein - Rochester NY
Dennis R. Trumble - Pittsburgh PA
Richard E. Clark - Sewickley PA
Fred W. Moeller - McKeesport PA

Allegheny-Singer Research Institute - Pittsburgh PA

A61M 112

600 16

The present invention pertains to a blood pump device which comprises a blood pump having blood transport ports and cannulae connected to the ports. The blood pump device also comprises a coating material covering the junction between the inner surfaces of the ports and cannulae. This forms a smooth transition so blood can flow unimpeded therefrom and collection cavities for the blood are eliminated. The invention is also related to a method of producing a smooth coating. The present invention is a blood pump device comprising a second portion having a stator mechanism and a rotor mechanism disposed adjacent to and driven by the stator mechanism. The second portion has a journal disposed about the rotor mechanism to provide support therewith. The second portion has an impeller disposed in the chamber and a one-piece seal member for sealing about a shaft of the impeller. The seal member is fixedly attached to the journal so that the seal member is supported by the journal.

6045496, Apr 4, 2000

Apr 15, 1994

8/228150

John J. Pacella - Pittsburgh PA
Richard E. Clark - Sewickley PA

Allegheny-Singer Research Institute - Pittsburgh PA

A61F 200

600 16

The present invention pertains to a circulatory system, such as a circulatory assist system for a patient. The system comprises a blood pump having tubing fluidically communicating with a person's blood vessel. The blood pump can be, for instance, a centrifugal blood pump but is not limited thereto. The system also comprises an occluder device for controlling flow of the blood pump. The occluder device is in contact with the tubing of the blood pump. The occluder device can be incorporated into an anti-kink sheath over the outlet graft tubing of the blood pump. Preferably, the system comprises control means for actuating the occluder device when the blood pump malfunctions. In this manner, potentially fatal retrograde blood due to pump failure is automatically prevented. In a preferred embodiment, the occluder device comprises a cylindrical tube and a bladder mechanism connected to the inside surface of the tube. The bladder mechanism preferably comprises a bladder and means for inflating the bladder.

6162167, Dec 19, 2000

Jul 21, 1997

8/898584

Andrew H. Goldstein - Branford CT
John J. Pacella - Pittsburgh PA
Dennis R. Trumble - Pittsburgh PA
Richard E. Clark - Sewickley PA
Fred W. Moeller - McKeesport PA
George J. Magovern - Pittsburgh PA

Allegheny-Singer Research Institute - Pittsburgh PA

A61M 112

600 16

A blood pump device which includes a blood pump having blood transport ports and cannulae connected to the ports. The blood pump device also includes a coating material covering the junction between the inner surfaces of the ports and cannulae. A method of producing a smooth coating. A blood pump device including a second portion having a stator mechanism and a rotor mechanism disposed adjacent to and driven by the stator mechanism. The second portion has a journal disposed about the rotor mechanism to provide support therewith. The second portion has an impeller disposed in the chamber and a seal member for sealing about a shaft of the impeller. The seal member is fixedly attached to the journal so that the seal member is supported by the journal. A mechanism for providing power to the blood pump so that blood can be pumped through a cannula.