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1. WO2000043053 - BLOOD PUMP USING CROSS-FLOW PRINCIPLES

Publication Number WO/2000/043053
Publication Date 27.07.2000
International Application No. PCT/US1999/026838
International Filing Date 10.11.1999
Chapter 2 Demand Filed 24.07.2000
IPC
A61M 1/10 2006.01
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
1Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
10Blood pumps; Artificial hearts; Devices for mechanical circulatory assistance, e.g. intra-aortic balloon pumps
A61M 1/12 2006.01
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
1Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
10Blood pumps; Artificial hearts; Devices for mechanical circulatory assistance, e.g. intra-aortic balloon pumps
12implantable into the body
F04D 17/04 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
04POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
DNON-POSITIVE-DISPLACEMENT PUMPS
17Radial-flow pumps specially adapted for elastic fluids, e.g. centrifugal pumps; Helico-centrifugal pumps specially adapted for elastic fluids
02having non-centrifugal stages, e.g. centripetal
04of transverse-flow type
F04D 29/28 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
04POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
DNON-POSITIVE-DISPLACEMENT PUMPS
29Details, component parts, or accessories
26Rotors specially adapted for elastic fluids
28for centrifugal or helico-centrifugal pumps
CPC
A61M 1/101
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY
1Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
10Blood pumps; Artificial hearts; Devices for mechanical circulatory assistance, e.g. intra-aortic balloon pumps
101Non-positive displacement pumps, e.g. impeller, centrifugal, vane pumps
A61M 1/1012
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY
1Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
10Blood pumps; Artificial hearts; Devices for mechanical circulatory assistance, e.g. intra-aortic balloon pumps
101Non-positive displacement pumps, e.g. impeller, centrifugal, vane pumps
1012Constructional features thereof
A61M 1/1032
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY
1Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
10Blood pumps; Artificial hearts; Devices for mechanical circulatory assistance, e.g. intra-aortic balloon pumps
101Non-positive displacement pumps, e.g. impeller, centrifugal, vane pumps
1029Drive systems therefor
1031using a motor with canned rotor, i.e. a motor enclosed within a casing along with the rotor so that the motor bearings are lubricated by the blood that is being pumped
1032with hydraulic or pneumatic driving means
A61M 1/1034
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY
1Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
10Blood pumps; Artificial hearts; Devices for mechanical circulatory assistance, e.g. intra-aortic balloon pumps
101Non-positive displacement pumps, e.g. impeller, centrifugal, vane pumps
1029Drive systems therefor
1031using a motor with canned rotor, i.e. a motor enclosed within a casing along with the rotor so that the motor bearings are lubricated by the blood that is being pumped
1034using rotating cables for driving
A61M 1/122
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY
1Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
10Blood pumps; Artificial hearts; Devices for mechanical circulatory assistance, e.g. intra-aortic balloon pumps
12implantable into the body
122Heart assist devices, i.e. for assisting an ailing heart, using additional pumping means in the blood circuit
A61M 1/125
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY
1Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
10Blood pumps; Artificial hearts; Devices for mechanical circulatory assistance, e.g. intra-aortic balloon pumps
12implantable into the body
125intravascular, i.e. introduced or implanted in an existing blood vessel
Applicants
  • KRITON MEDICAL, INC. [US/US]; 6790 Florin-Perkins Road Sacramento, CA 95828-1812, US (AllExceptUS)
  • YU, Long, Sheng [US/US]; US (UsOnly)
Inventors
  • YU, Long, Sheng; US
Agents
  • GERSTMAN, George, H.; Seyfarth, Shaw, Fairweather & Geraldson 43rd Floor 55 East Monroe Street Chicago, IL 60603-5803, US
Priority Data
09/233,56719.01.1999US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) BLOOD PUMP USING CROSS-FLOW PRINCIPLES
(FR) POMPE A SANG UTILISANT UN ECOULEMENT CROISE
Abstract
(EN)
A blood pump is provided which comprises a cross-flow pump head having an elongated generally cylindrical housing portion. The housing portion defines a blood inlet port on a surface thereof and a blood outlet port on an opposite surface thereof. An impeller within the housing portion provides cross-flow of the blood from the inlet port around and/or across the rotational axis of the impeller to the outlet, and a motor is provided for driving the cross-flow pump head. The blood pump may be small enough to permit percutaneous insertion of the pump into a patient's blood vessel, and thus may be utilizable as a left ventricular assist device. To this end, a collapsible polymeric outlow tube is coupled to the bood flow outlet and is adapted for directing the blood from the left ventricle to the aorta through the aortic valve.
(FR)
L'invention concerne une pompe à sang comprenant une tête de pompe à écoulement croisé dotée d'un logement allongé généralement cylindrique. Ce logement définit un port d'entrée du sang sur sa surface et un port de sortie du sang sur une surface opposée. Une turbine située à l'intérieur du logement crée un écoulement croisé de sang partant du port d'entrée, circulant autour et/ou à travers l'axe de rotation de la turbine, en direction de la turbine. Un moteur entraîne la tête de pompe à écoulement croisé. Cette pompe à sang peut être suffisamment petite pour permettre son insertion percutanée dans le vaisseau sanguin d'un sujet, et peut, par conséquent, servir de dispositif d'assistance ventriculaire gauche. A cet effet, un tube d'évacuation polymère télescopique est couplé à la sortie d'évacuation du sang et permet de diriger le sang du ventricule gauche à l'aorte, en passant par les valvules aortiques.
Latest bibliographic data on file with the International Bureau