US Patent No: 4,808,378

Number of patents in Portfolio can not be more than 2000

Blood oxygenator

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A blood oxygenator includes an elongated hollow housing having an elongated chamber therein, an elongated fiber assembly disposed within the chamber along an axis thereof and including a bundle of hollow fibers of a microporous membrane. The opposite ends of the fiber bundle are sealingly secured to the inner peripheral surface of the housing by a potting material. Gas inlet and outlet members are connected respectively to the opposite ends of the housing and communicate respectively with the opposite ends of the hollow fibers. Blood inlet and outlet are formed on the housing and communicate with the chamber intermediate the opposite ends of the hollow fibers. The fiber assembly includes a plurality of layers of spirally-wound fiber bundles arranged one upon another. Each turn of one of each adjacent spirally-wound bundles is disposed in a plane intersecting the plane in which each turn of the other fiber bundle is disposed. The outer periphery of the outermost layer of the spirally-wound bundle is held in contact with the inner peripheral surface of the housing.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
SENKO MEDICAL INSTRUMENT MFG. CO., LTD.TOKYO28

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ishizuka, Hiroaki San Jose, CA 55 344
Kamiya, Masahiro Nishio, JP 52 194
Kuwana, Katsuyuki Tokyo, JP 3 78
Nakanishi, Hikaru Tokyo, JP 5 110

Cited Art Landscape

Patent Info (Count) # Cites Year
 
LIFESHIELD SCIENCES LLC (3)
2004/0158,312 Braided endoluminal device having tapered filaments 4 2003
2004/0158,312 Braided endoluminal device having tapered filaments 4 2003
2004/0158,312 Braided endoluminal device having tapered filaments 4 2003
 
TOYO BOSEKI KABUSHIKI KAISHA (1)
4,352,736 Wound flattened hollow fiber assembly having plural spaced core sections 40 1980

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
ARG MEDICAL SOLUTIONS LLC (5)
6,379,618 Integrated blood oxygenator and pump system having means for reducing microbubble generation 22 1998
6,368,557 Integrated blood oxygenator and pump system having means for reducing manifold flooding 25 1998
6,224,829 Integrated blood oxygenator and pump system having means for reducing fiber breakage 37 1998
6,454,999 Integrated blood pump and oxygenator system having extended blood flow path 33 1999
6,503,450 Integrated blood oxygenator and pump system 33 1999
 
THEROX, INC. (4)
6,759,008 Apparatus and method for blood oxygenation 2 1999
6,602,468 Method of blood oxygenation 20 1999
6,582,387 System for enriching a bodily fluid with a gas 35 2001
6,974,435 Method for enriching a bodily fluid with a gas 10 2002
 
NOVOSCI CORP. (3)
5,429,184 Wound heat exchanger oxygenator 15 1994
5,718,869 Wound heat exchanger oxygenator 8 1995
5,706,889 Wound heat exchanger oxygenator 6 1996
 
SHILEY INCORPORATED (3)
5,240,677 Hollow fiber blood oxygenator 32 1992
5,234,663 Hollow fiber blood oxygenator 25 1992
5,358,689 Hollow fiber blood oxygenator 29 1993
 
WAYNE STATE UNIVERSITY (3)
6,344,489 Stabilized gas-enriched and gas-supersaturated liquids 24 1996
6,312,647 Method for enriching a fluid with oxygen 28 1999
RE37379 High pressure gas exchanger 6 2000
 
DynamOx, Inc. (2)
7,008,535 Apparatus for oxygenating wastewater 21 2000
7,294,278 Method for oxygenating wastewater 5 2005
 
EDWARDS LIFESCIENCES CORPORATION (2)
5,270,004 Cylindrical blood heater/oxygenator 26 1992
5,578,267 Cylindrical blood heater/oxygenator 23 1995
 
PALL CORPORATION (2)
5,228,992 Process for preparing hollow fiber separatory devices 2 1992
5,445,771 Process for preparing hollow fiber separatory devices 18 1993
 
COBE LABORATORIES, INC. (1)
6,508,983 Exchanger apparatus and method of manufacture 5 1999
 
DIDECO S.P.A. (1)
5,817,278 Blood oxygenator and method of oxygenating blood 21 1995
 
Electromedics, Inc. (1)
5,312,589 Gas transfer apparatus 39 1993
 
FUJI SYSTEMS CORPORATION (1)
5,964,725 Gas exchange apparatus using improved silicone rubber hollow fiber 10 1997
 
JOSTRA BENTLEY INC. (1)
5,236,665 Hollow fiber treatment apparatus and membrane oxygenator 33 1992
 
MATHEWSON, WIFRED (1)
5,591,404 Integrated low priming volume centrifugal pump and membrane oxygenator 15 1993
 
MEDTRONIC, INC. (1)
8,545,754 Radial design oxygenator with heat exchanger 0 2009
 
RAIMUNG MARGREITER (1)
7,067,307 Bioartificial device for the storage, cultivation and/or multiplication of cells 1 2003
 
SORIN BIOMEDICAL INC. (1)
5,124,127 Hollow fiber blood oxygenator 28 1989
 
TERUMO KABUSHIKI KAISHA (1)
5,116,308 Apparatus for processing fluid and method of driving the same 15 1990
 
Other [Check patent profile for assignment information] (1)
5,277,176 Extracorporeal lung assistance apparatus and process 16 1992