Allegheny-singer Research Institute

Andrew H Goldstein

Dennis Robert Trumble

John J Pacella

Richard E Clark

Fred W Moeller

George J Magovern

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.

Blood pump device and method of producing

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.

Blood pump device having a journal

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.

Blood pump device and method of pumping blood

A tether system for an animal. The tether system has an apparatus which is electrically or fluidically powered or monitored with greater than 200 milliamps of current. The tether system is also comprised of an area for the animal and a structure above the area. The tether system is comprised of an anchor for attachment to the structure. The tether system is also comprised of a mechanism for providing power to the apparatus to operate it. The providing mechanism is in electrical communication with the anchor and the apparatus. The anchor prevents entanglement of the power providing means or mechanism as the animal moves freely about the area. Preferably, the tether system also includes a mechanism for providing fluid to or from the animal. The fluid providing mechanism is fluidically connected to the anchor and the patient. Additionally, the tether system can include a mechanism for transmitting electrical signals from the animal. The transmitting mechanism is in electrical communication with the anchor and the animal. The present invention also pertains to a method for tethering an animal with an apparatus which is electrically powered. The method comprises the steps of attaching a first electrical conduction element to the apparatus of the animal so the first electrical conduction element extends from an anchor attached to a structure above and remote from the animal to the animal. Then, there is the step of providing current to the apparatus to power it. Next, there is the step of allowing the animal to freely walk around the area while connected to the first electrical conduction element extending down from the anchor attached to the structure above the animal in the area.

Growing community of inventors

Rochester, NY, United States of America

Andrew H Goldstein