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Class 422/47 - Bubble or foam producing


Subclass of Class 422 - Chemical apparatus and process disinfecting, deodorizing, preserving, or sterilizing
Definition: Apparatus having means for producing a blood-oxygen mixture
No. of patents: 71
Last issue date: 07/15/2008


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NumberTitleIssue Date
7399717Oxygen generation in whole blood by photolytic activation
Apparatus and methods for photolytic oxygenation of whole blood. ...
07/15/2008
7303156Generation and usage of microbubbles as a blood oxygenator
A micro-nozzle for generating micro-bubbles. The micro-nozzle includes a liquid inlet forming a liquid path, a gas inlet, and a constricting wall positioned in the liquid path and shaped to abruptly constrict said liquid path to a width of less than approximately 20...
12/04/2007
7294278Method for oxygenating wastewater
A method and apparatus creates gas-enriched fluid that is used to treat wastewater. In one embodiment, the wastewater is withdrawn from a supply of wastewater to be treated, and the wastewater is delivered in an atomized manner to a vessel pressurized with gas to fo...
11/13/2007
7163618Multi-inlet port manifold for a medical waste receiver having an elevated filter element and tethered inlet port caps
A filter system especially useful in the treatment of waste material, in particular liquid waste material which may include particulate matter therein. The filter system includes a series of filters of progressively finer porosity in order to selectively eliminate p...
01/16/2007
7152611Coated multifilament dental devices overcoated with imbedded particulate
Disclosed are coated multifilament dental devices overcoated with biofilm-responsive, imbedded, particulate abrasives. ...
12/26/2006
7121535Horizontal reaction chamber comprised of nested, concentric tubes for use in water purification
The present invention includes a horizontal foam fractionation protein skimmer for removing organic waste material (dissolved organic compounds) from organic loaded water. The protein skimmer includes a horizontal reaction chamber connected to a foam collection cham...
10/17/2006
7008535Apparatus for oxygenating wastewater
A method and apparatus creates gas-enriched fluid that is used to treat wastewater. In one embodiment, the wastewater is withdrawn from a supply of wastewater to be treated, and the wastewater is delivered in an atomized manner to a vessel pressurized with gas to fo...
03/07/2006
6974435Method for enriching a bodily fluid with a gas
A system utilizes an oxygenation device to generate a gas-enriched physiologic fluid and to combine it with a bodily fluid to create a gas-enriched bodily fluid. The oxygenation device may take the form of a disposable cartridge, which is placed within an enclosure....
12/13/2005
6945950Ureteral stent with small bladder tail(s)
A ureteral stent for assisting movement of urine along a patient's ureter and into the patient's bladder. The stent includes an elongated tubular segment extending toward the bladder from a kidney end region for placement in the renal cavity to a bladder end region....
09/20/2005
6417011Methods and materials for improved high gradient magnetic separation of biological materials
Improvements in the existing procedures and materials for conduct of high gradient magnetic separation (HGMS) are disclosed. The use of plastic coated matrices especially small spheres or balls which form superior magnetic gradient-intensifying supports a...
07/09/2002
6387324Apparatus and method for blood oxygenation
An apparatus and method for blood oxygenation is provided, advantageously comprising an extracorporeal circuit for the preparation and delivery of hyperoxic or hyperbaric blood. In one embodiment, an apparatus for gas-supersaturating fluids, e.g., physiol...
05/14/2002
5863501Oxygenator priming method
A method for improving priming of an integrated oxygenator and heat exchanger which includes pretreating the integrated hollow fiber oxygenator and heat exchanger device with a surfactant. Pretreating the device coats the interior surfaces of the integrat...
01/26/1999
5770073Combined cardiotomy and venous reservoir
A combined venous and cardiotomy blood reservoir is provided that includes a rigid shell having a top, a bottom, and a continuous side wall. The top and bottom walls are connected to the continuous side walls so as to define a reservoir for venous and car...
06/23/1998
5612226Gas/liquid contact apparatus
A gas/liquid contact method and apparatus, for example, for oxygenating blood using O2 and O3. A low pressure stream of oxygen is introduced into a chamber through a spray orifice while inducing blood into the oxygen stream in a firs...
03/18/1997
5474740Biphasic foam blood mass transfer device
The present invention relates to apparatus for transferring constituents into and out of a fluid such as blood. The apparatus includes a biphasic foam body which functions as a blood oxygenator, blood dialyzer, or other blood mass transfer device....
12/12/1995
5411705Combined cardiotomy and venous blood reservoir
A reservoir for use in an extracorporeal blood circuit including a rigid shell forming an enclosed reservoir. A filter unit divides the reservoir into an inlet chamber and outlet chamber. Cardiotomy blood filtering and defoaming means and venous blood fil...
05/02/1995
5366696Oxygenation apparatus for oxygenating a carrier liquid by spraying
An oxygenation apparatus for introducing a flow of oxygen gas molecules into a carrier liquid in a one-pass operation comprises a receiving chamber for receiving carrier liquid, a contacting chamber for allowing the oxygen gas molecules to thoroughly cont...
11/22/1994
5338512Method for oxygenation of a patient's blood
A device including an integrally formed membrane oxygenator and heat exchange device positioned in a single housing. The device includes a thermally conductive body formed with a plurality of blood pathways on its surface, and a gas permeable membrane, or...
08/16/1994
5244930Biphasic foam blood mass transfer device
The present invention relates to apparatus for transferring constituents into and out of a fluid such as blood. The apparatus includes a biphasic foam body which functions as a blood oxygenator, blood dialyzer, or other blood mass transfer device....
09/14/1993
5167921Liquid and gas separation system
A defoaming device for separating foam and bubbles from a liquid, such as blood, is disclosed. The device can be used in conjunction with a medical device, such as a membrane oxygenator, for separating air from blood while minimizing blood contact with th...
12/01/1992
5158533Combined cardiotomy/venous/pleural drainage autotransfusion unit with filter and integral manometer and water seal
A combined cardiotomy and venous reservoir with filtration for autotransfusion of cardiotomy blood and venous blood during surgery and for postoperative wound site pleural drainage of shed blood for continued autotransfusion using the same unit. Vacuum re...
10/27/1992
5120302Blood container for medical apparatus
A blood container comprises a generally cylindrically shaped outer housing (11) having an upper portion, a lower portion and a bottom portion which declines downwardly to an outlet 3. A generally cylindrically shaped filter 2 is enclosed concentrically wi...
06/09/1992
5110549Liquid and gas separation system
A blood oxygenator having a defoaming device for separating foam and bubbles from a liquid, such as blood, is disclosed. The defoaming device of the oxygenator is designed for separating air from blood while minimizing blood contact with the antifoam agen...
05/05/1992
5049146Blood/gas separator and flow system
A blood reservoir is formed with a hard outer shell housing defining at least one blood compartment. A flexible bag is mounted in the outer shell and is connected to the reservoir inlet port to allow blood to directly enter the flexible bag. The bag inclu...
09/17/1991
5039482Integrated unit for extracorporeal blood circuits
An extracorporeal blood circuit comprises a generally cylindrically shaped blood reservoir; a generally cylindrically shaped oxygenator arranged coaxially and adjacently below said reservoir; and a generally cylindrically shaped heat exchanger attached co...
08/13/1991
5039486Liquid and gas separation system
A defoaming device for separating foam and bubbles from a liquid, such as blood, is disclosed. The device can be used in conjunction with a medical device, such as a membrane oxygenator, for separating air from blood while minimizing blood contact with th...
08/13/1991
4954317Blood oxygenator
There is disclosed a blood oxygenating device having an oxygenating chamber and a heat exchange chamber. The oxygenating chamber consists of a bubbler chamber and a mixing chamber. Oxygen is introduced into the bubbler chamber through a porous diffusion m...
09/04/1990
4874581O2 /CO2 control in blood oxygenators
A blood oxygenator which independently controls the rate of oxygen and carbon dioxide exchange between an oxygen enriched gas and the blood. The oxygenator of the invention includes a gas inlet mechanism for diverting oxygen enriched gas between two diffe...
10/17/1989
4818490Integral blood oxygenator
A membrane type blood oxygenating system with the membrane device, blood heater and blood reservoir constructed as an integral unit with the membrane device located lower than the blood reservoir....
04/04/1989
4734269Venous reservoir bag with integral high-efficiency bubble removal system
A liquid-gas bubble separator comrising a container having an inlet for a fluid which includes liquid and gas bubbles, an outlet and upstream and downstream vents. A filter element is provided in the container between the inlet and the outlet. The filter ...
03/29/1988
4684508Blood heat exchanger
An improved structure for directing the flow of blood and blood foam onto a heat exchanger in a bubble blood oxygenator is disclosed. An extended skirt extends from the plate where venous blood and oxygen are mixed to the top of the heat exchanger of the ...
08/04/1987
4653577Unitary heat exchanger and debubbler for a liquid
A compact unitary heat exchanger and debubbler for a liquid includes an elongated heat exchange element having an inverted V-shape and a vertically-extending debubbling chamber located between the legs of the inverted V. The heat exchange element is made ...
03/31/1987
4623518Blood oxygenator
A blood oxygenating device having an oxygenating chamber and a heat exchanger chamber. The oxygenating chamber consists of a bubbler chamber and a mixing chamber. Oxygen is introduced into the bubbler chamber through a porous diffusion means situated near...
11/18/1986
4568367Blood defoamer with improved liquid seal
A blood defoamer for use in surgical procedures is disclosed comprising a porous defoaming element, a non-porous end piece in contact with a surface of the defoaming element, and a layer of fabric affixed to the end piece adjacent to said surface. Bypass ...
02/04/1986
4533516Apparatus for the transfer of one or more substances between a gas and a liquid
An apparatus for the transfer of one or more substances between a gas and a liquid, for example between an oxygen-containing gas and blood, is disclosed. The apparatus includes a plurality of concentric vessels which define a flow path for the liquid, and...
08/06/1985
4440722Device for oxygenating blood circulating in an extracorporeal circuit with a heat exchanger
The device comprises plural oxygenation modules, each of which has at least one member for diffusing oxygen through the blood, and one shutter for shutting off such fluids. The modules communicate with a chamber wherethrough the pipes of a heat exchanger ...
04/03/1984
4440723Blood oxygenator
A blood oxygenator containing a means for combining oxygen-containing gas with liquid blood, the oxygenator having an outer shell portion rotatably joined to a cap portion. Preferably the cap portion includes at least one blood inlet together with an oxyg...
04/03/1984
4428403Conduit having spirally wound monofilament material
Device useful as a heat exchanger for blood or as an apparatus in which blood may be treated or reacted with selected reactants. Device comprises hollow tubing which has plastic monofilament placed in a generally spiral configuration around its outer surf...
01/31/1984
4407777Blood oxygenator
A blood oxygenator for one time use and discard in medical procedures. The blood oxygenator has a unitary transparent sealed vessel with first and second blood treating stages arranged for series flow. The first stage receives an inflow of blood and oxyge...
10/04/1983
4396584Blood oxygenator
A blood oxygenator is equipped with a sparger having a passageway formed by two vertically aligned fluid impervious cones, one upright and one inverted, between the bases of which a porous disc is positioned. An oxygen inlet communicates with the porous d...
08/02/1983
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