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1. WO2000038816 - IMPROVED INTEGRATED BLOOD OXYGENATOR AND PUMP SYSTEM

Publication Number WO/2000/038816
Publication Date 06.07.2000
International Application No. PCT/US1999/031194
International Filing Date 30.12.1999
Chapter 2 Demand Filed 21.07.2000
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 1/16 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
14Dialysis systems; Artificial kidneys; Blood oxygenators
16with membranes
A61M 1/26 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
14Dialysis systems; Artificial kidneys; Blood oxygenators
16with membranes
26which are moving
CPC
A61M 1/1006
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
1001General aspects of blood pumps irrespective of pump type
1006Blood pumps incorporated within another functional device, e.g. an oxygenator, a dialyser or a blood chamber
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 1/1013
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
1013Types of bearings
A61M 1/1025
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
1025Details on blood sealings between rotational parts, e.g. sealing by axial forces
A61M 1/1036
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
1036using rotating magnets for driving
Applicants
  • CARDIOVENTION, INC. [US/US]; 3045 Stender Way Santa Clara, CA 95054, US
Inventors
  • AFZAL, Thomas, A.; US
  • DUERI, Jean-Pierre; US
  • LEYNOV, Alex; US
  • MAKAREWICZ, Anthony; US
  • PIPLANI, Alec, A.; US
  • POTTS, Greg; US
Agents
  • PISANO, Nicola, A. ; Fish & Neave 1251 Avenue of the Americas New York, NY 10020, US
Priority Data
09/223,42330.12.1998US
09/223,67630.12.1998US
09/223,68530.12.1998US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) IMPROVED INTEGRATED BLOOD OXYGENATOR AND PUMP SYSTEM
(FR) AMELIORATIONS APPORTEES A UN SYSTEME INTEGRE D'OXYGENATION ET DE POMPAGE DU SANG
Abstract
(EN)
Improvements to integrated blood pump/oxygenator (120) having a rotating hollow fiber bundle (127) assembly that both oxygenates, and pumps blood, are provided. An inner member arranged along a central axis of the device accelerates blood entering the fiber bundle (127) to reduce micro-bubble generation, and blood trauma. Shearing loads imposed on the fiber elements of the fiber bundle (127) are reduced by the addition of a reinforcement structure, while the gas flow path is configured to reduce flooding, and loss of oxygenation efficiency due to occasional rupture of fiber elements.
(FR)
L'invention porte sur des améliorations apportées à un système (120) intégré de pompage/oxygénation du sang comprenant un ensemble rotatif de faisceaux (127) de fibres creuses qui oxygène et pompe le sang. Un élément interne disposé le long d'un axe central du dispositif accélère la pénétration du sang dans le faisceau (127) de fibres de façon à réduire la génération de micro-bulles et le trauma sanguin. Des charges de cisaillement imposées aux éléments du faisceau (127) de fibres sont réduites lorsqu'on ajoute une structure de renforcement, et la voie d'écoulement gazeux est configurée de façon à réduire le débordement et la perte d'efficacité de l'oxygénation dans le cas d'une rupture accidentelle des éléments des fibres.
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