Processing

Please wait...

Settings

Settings

1. WO2000038817 - INTEGRATED BLOOD PUMP AND OXYGENATOR SYSTEM HAVING EXTENDED BLOOD FLOW PATH

Publication Number WO/2000/038817
Publication Date 06.07.2000
International Application No. PCT/US1999/031237
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 1/1013
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
A61M 1/1625
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
14Dialysis systems; Artificial kidneys; Blood oxygenators; ; Reciprocating systems for treatment of body fluids, e.g. single needle systems for haemofiltration, pheris
16with membranes
1621Constructional aspects thereof
1623Disposition of membranes
1625Dialyser of the outside perfusion type, i.e. blood flow outside hollow membrane fibres or tubes
Applicants
  • CARDIOVENTION, INC. [US/US]; 3045 Stender Way Santa Clara, CA 95054, US
Inventors
  • FARHANGNIA, Mehrdad; US
  • LEYNOV, Alex; US
  • LOEFFLER, Joseph; US
  • PIPLANI, Alec, A.; US
  • POTTS, Greg; US
  • SKIELLER, Christian; US
Agents
  • PISANO, Nicola, A. ; Fish & Neave 1251 Avenue of the Americas New York, NY 10020, US
Priority Data
09/223,67630.12.1998US
09/430,24429.10.1999US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) INTEGRATED BLOOD PUMP AND OXYGENATOR SYSTEM HAVING EXTENDED BLOOD FLOW PATH
(FR) SYSTEME INTEGRE DE POMPE A SANG ET D'OXYGENATEUR AVEC PARCOURS SANGUIN DE LONGUEUR ACCRUE
Abstract
(EN)
An integrated blood pump/oxygenator (80) having a rotating hollow fiber bundle assembly (81) that both oxygenates, and pumps blood is provided that includes a plurality of partitions (82) (84) (85) disposed within or about the fiber bundle assembly (81) to lengthen the flow path of blood (87) (88) passing through the fiber bundle (81). Alternatively, or in addition, blood flow paths (87) (88) may be lengthened, oxygenation improved by providing internal recirculation paths within the pump/oxygenator, which also advantageously may be used to reduce blood trauma caused by stagnation nearing moving parts, and heat build-up.
(FR)
Cette invention concerne un système de pompe à sang-oxygénateur (80) comportant un ensemble tournant fait d'une masse fibreuse (81) creuse qui assure à la fois l'oxygénation et le pompage du sang. Ce système comporte une pluralité de séparations (82) (84) (85) disposées à l'intérieur ou autour du faisceau fibreux (81), dont la fonction est d'accroître la longueur du passage du sang (87) (88) dans la masse fibreuse (81). En variante, ou en plus, on peut augmenter la longueur du parcours sanguin(87) (88) et améliorer l'oxygénation du sang au moyen de voies de circulation interne dans l'ensemble pompe-oxygénateur, ce qui offre de surcroît l'avantage de réduire les lésions sanguines provoquées par la stagnation du sang à l'approche de pièces en mouvement ainsi que la formation de chaleur.
Latest bibliographic data on file with the International Bureau