317 results about "Oxygenator" patented technology

Apparatus for oxygenating an enclosed space as well as removing carbon dioxide from the enclosed space. The apparatus comprises a photolytic cell (16) having an anode compartment with a photo-active surface having the ability to convert water to oxygen; a cathode compartment having the ability to convert carbon dioxide and hydrogen to a solid or liquid medium; and a light source (20) for providing light photons (21) to said photolytic cell and activating the photo-reactive surface.

An apparatus and method for mixing a gas and a liquid while concomitantly mixing and suspending solids and sludge at the bottom of a deep tank. The present invention includes a gas-liquid aerator which is adapted to be submerged below the surface of wastewater in a deep tank. An expanding high velocity gas-liquid mixture is caused to exit from the bottom of the submerged aerator device with enough force to mix and suspend settling solids and sludge at the bottom of the deep tank.

An organ preservation system having an organ chamber with a perfusate reservoir surrounded by a heat exchanger. The system has a pump for circulating perfusate, which draws perfusate from the reservoir and passes the perfusate through a bubble trap, and temperature and pressure sensors prior to entering the chamber where the organ is perfused. An oxygenator with a platform and a filter is situated within the perfusate reservoir such that perfusate leaving the organ which rests on the platform passes through the filter before dripping into the perfusate reservoir below. The pump re-circulates perfusate from the perfusate reservoir. The oxygenator has gas permeable tubes wound around support legs of the oxygenator. Circulation of oxygen through the tubes allows for gas exchange by diffusion across the membrane to oxygenate perfusate flowing around the tubes.

An extracorporeal blood circuit for use with a venous return line and an arterial line coupled to a patient. The extracorporeal blood circuit can include a venous air removal device coupled to the venous return line. The venous air removal device can perform an active air removal function. The extracorporeal blood circuit can include a sensor that determines a blood level in the venous air removal device, a purge line coupled to the venous air removal device, and a controller connected to the sensor. The controller can cause the venous air removal device to perform the active air removal function through the purge line when the blood level is less than a threshold. The extracorporeal blood circuit can further include a pump coupled to the venous air removal device, an oxygenator coupled to the pump, and a blood filter coupled to the oxygenator and the arterial line.

A method and system for improving gas exchange properties of oxygenators which utilize hollow fiber membranes for removing carbon dioxide or adding oxygen to a patient's blood via extracorporeal circulation by removing moisture accumulating in the fibers are disclosed. The system utilizes a vacuum source for drawing sweep gas into the oxygenator, a moisture collection unit for storing moisture removed from the oxygenator, the moisture collecting unit being in communication with the oxygenator and the vacuum source and a flow control mechanism having an open position which allows sweep gas exiting the oxygenator to flow to the moisture collecting unit and a closed position which stops the flow of sweep gas from the oxygenator to the moisture collecting unit. The vacuum source draws sweep gas through the oxygenator and moisture collecting unit when the flow control mechanism is in the open position and the vacuum source creates a vacuum buildup in the moisture collecting unit when the flow control mechanism is in the closed position. The vacuum in the moisture collecting unit provides a sudden increase to the flow rate of the sweep gas to draw moisture with the sweep gas exiting the oxygenator when the flow control mechanism is returned to the open position.

Described is a method of making an apparatus for oxygenating and controlling the temperature of blood in an extracorporeal circuit, the steps comprising: providing a core through which blood can be supplied to the apparatus from a patient; providing a heat exchanger about the core such that blood from the core can move radially outward through the heat exchanger; providing an oxygenator about the heat exchanger such that blood from the heat exchanger can move radially outward through the oxygenator; and placing the core, heat exchanger and oxygenator in a housing that includes an inlet in communication with the core and an outlet that is located radially outward from the inlet in order to define a flowpath for blood through the apparatus.

This invention provides methods, devices, and kits for growing a plant or germinating a seed into a plant; methods and devices for delivering oxygen to a plant or a seed which will germinate into a plant; methods and devices for delivering liquid to a plant; methods and devices for increasing the dissolved oxygen concentration in a liquid to be delivered to a plant; methods and devices for increasing the dissolved oxygen concentration in a liquid within a hydroponics device; terraced oxygenators; aspirators, downdraft venturis, net baskets; germination caps, sets of germination caps; methods for increasing the likelihood of germination of a seed; seed-bearing support media; methods for germinating a seed; and smart garden devices for hydroponics growing systems.

An oxygen emitter which is an electrolytic cell is disclosed. When the anode and cathode are separated by a critical distance, very small microbubbles and nanobubbles of oxygen are generated. The very small oxygen bubbles remain in suspension, forming a solution supersaturated in oxygen. A flow-through model for oxygenating flowing water is disclosed. The use of supersaturated water for enhancing the growth of plants is disclosed. Methods for applying supersaturated water to plants manually, by drip irrigation or in hydroponic culture are described. The treatment of waste water by raising the dissolved oxygen with the use of an oxygen emitter is disclosed.

An oxygen emitter which is an electrolytic cell is disclosed. When the anode and cathode are separated by a critical distance, very small microbubbles and nanobubbles of oxygen are generated. The very small oxygen bubbles remain in suspension, forming a solution supersaturated in oxygen. A flow-through model for oxygenating flowing water is disclosed. The use of supersaturated water for enhancing the growth of plants is disclosed. Methods for applying supersaturated water to plants manually, by drip irrigation or in hydroponic culture are described. The treatment of waste water by raising the dissolved oxygen with the use of an oxygen emitter is disclosed.

This invention provides methods, devices, and kits for growing a plant or germinating a seed into a plant; methods and devices for delivering oxygen to a plant or a seed which will germinate into a plant; methods and devices for delivering liquid to a plant; methods and devices for increasing the dissolved oxygen concentration in a liquid to be delivered to a plant; methods and devices for increasing the dissolved oxygen concentration in a liquid within a hydroponics device; terraced oxygenators; aspirators, downdraft venturis, net baskets; germination caps, sets of germination caps; methods for increasing the likelihood of germination of a seed; seed-bearing support media; methods for germinating a seed; and smart garden devices for hydroponics growing systems.

The invention provides systems and methods for exchanging gas in an oxygenator device, and methods for preparing and using such oxygenator devices. The systems and methods can be used to transfer oxygen to blood to assist lung function in a patient.

A system and method for monitoring the arterial gas concentrations of a patient receiving percutaneous oxygenator support. The system comprises a percutaneous oxygenator for providing medical gases to the venous system of the patient via a catheter. Gases are also removed from the venous system via a catheter. The concentrations and flow rates of the gases provided and removed from the patient are monitored. A CPU analyzes the concentration and flow rate information to compute the arterial gas concentration of the patient.

Apparatus for oxygenating an enclosed space as well as removing carbon dioxide from the enclosed space.

A method and an apparatus for preparing and culturing cells, particularly bone marrow stromal cells. The method includes the steps of placing an oxygenator and a scaffold in a container, such as a syringe, withdrawing bone marrow stromal cells with the syringe, evenly distributing the cells on the scaffold, connecting the syringe with a reservoir with a medium to enrich the syringe with the medium, and promoting the medium level movement in the syringe to culture bone marrow stromal cells.

A sewage treatment system includes a sewage pump, an inclined-plate catalytic reaction tower, a first centrifugal pump, a first jet device, a first oxygenator, a first ozonizer, a first catalytic reactor, a first heat exchanger, a filler catalytic tower, an aeration biological tower, and a water storage tank; the outlet of the sewage pump connects with the first inlet of the inclined-plate catalytic reaction tower; the first outlet of the inclined-plate catalytic reaction tower connects with the inlet of the first centrifugal pump; the outlet of the first centrifugal pump connects with the first inlet of the first jet device; the outlet of the first oxygenator connects with the inlet of the first ozonizer; the outlet of the first ozonizer connects with the second inlet of the first jet device; and the outlet of the first jet device connects with the inlet of the first catalytic reactor.

An oxygenator includes a housing; a hollow fiber membrane layer that is stored in the housing and has multiple integrated hollow fiber membranes with a gas exchange function; a gas inlet portion and a gas outlet portion that are provided on the upstream and downstream of gas passages in lumens of the hollow fiber membranes, respectively; and a blood inlet portion and a blood outlet portion that are provided on the upstream and downstream of blood passages outsides of the hollow fiber membranes, respectively. The hollow fiber membranes in the hollow fiber membrane layer are fixed relative to each other at one end portion and the other end portion thereof. Conditions 30≦ε60 and OD≦4.5×ε are met where ε [μm] is an average separation distance between the adjacent hollow fiber membranes at a fixed portion of the hollow fiber membrane layer and OD [μm] is the outer diameter of the hollow fiber membrane.

A combination heat exchanger and oxygenator device is provided. The device includes a generally cylindrical housing having first and second compartments with hollow heat exchange tubes and hollow gas exchange tubes disposed therein, a blood inlet, a blood outlet, a heat exchanges medium inlet, a heat exchange medium outlet, an oxygenating fluid inlet and an oxygenating fluid outlet. The housing has a central axis with the second compartment being concentric thereto. The blood flow passage is defined by blood entering the device generally axially through a path extending along the central axis of the housing and flows generally radially through the second, oxygenating compartment.

The invention discloses a hollow fiber membrane oxygenator and a method, and belongs to the technical field of medical devices. The hollow fiber membrane oxygenator is characterized in that the inner cavity of an outer shell is connected with a middle shell; the outer shell and the middle shell define the cavity of an oxygenation room; the inner cavity of the middle shell is connected with an inner shell; the cavity of a variable-temperature room is formed between the middle shell and the inner shell; an upper cover is connected to the top of the outer shell; an oxygenation membrane is connected to the cavity of the oxygenation room between the outer shell and the middle shell; a variable-temperature membrane is connected to the cavity of the variable-temperature room between the middle shell and the inner shell; a lower bottom is connected with the bottom of the outer shell, and is partitioned into a lower bottom inner cavity, a lower bottom middle cavity and a lower bottom outer cavity; the lower bottom inner cavity is a blood path with a blood inlet; the lower bottom middle cavity is a water path with a water outlet; the top side face of the outer shell is connected with an arterial blood air outlet; the bottom side face of the outer shell is connected with a blood outlet; an arterial blood sampling port is formed in the blood outlet; the bottom side face of the outer shell is connected with a temperature measuring port; the upper cover is partitioned into an upper cover inner cavity and an upper cover outer cavity; the upper cover inner cavity is taken as a water path; the upper cover inner cavity is connected with a water inlet; the upper cover outer cavity is connected with an air inlet; a cardioplegic solution injection port / arterial blood recirculation port is connected to a lower bottom side face.

The invention relates to a biological test device for fish behaviors. The development of fish culture in lakes and reservoirs in the prior art faces two difficulties: 1, the throw of a large amount of feed can cause eutrophication of water resources and destroy natural water environment; and 2, since water in most of lakes and reservoirs is too deep, cultured fish individuals are difficult to catch when growing up, and since habits of fishes living in different water layers can not be distinguished as a result of the fact that a fishing net of the traditional fishing system in the prior art is simply a single-layer net, the traditional fish aquatic culture system can not be used for testing life behaviors of fishes. The biological test device for fish behaviors comprises a fish aquatic culture system (1), wherein the fish aquatic culture system (1) contains a fish perching behavior-based fishing system (6), a fish tank (13) and a frequency-adjustable sound generator (11), and the outside of the fish aquatic culture system (1) is provided with a video monitoring system (10) and an oxygenator. The invention is used for testing habits of fishes.

A hollow fiber membrane oxygenator of external blood circulation type has a housing and a lot of porous hollow fiber membranes for gas transfer housed in the housing. In the oxygenator, blood flows along the outer side of the hollow fiber membranes, whereas oxygen-containing gas flows along the inner side thereof. An outer surface or outer layer of the hollow fiber membrane as a blood-contacting portion is coated with synthetic polymer mainly formed of alkoxyalkyl(meta)acrylate containing a C(1-4)alkoxy group and a C(1-4)alkyl group. An intermediate layer and inner layer of the hollow fiber membranes contain substantially no synthetic polymer.

The blood temperature varying system based on distributed computer control consists of one extracorporeal blood circulation subsystem and one monitoring subsystem. The extracorporeal blood circulation subsystem includes a blood transfusion pipe, a heat exchanger, a water pump, an oxygenator, a post blood treater and a centrifugal pump. The monitoring subsystem includes a flow sensor, a heating / cooling device, a centrifugal pump rotation controller, a host control computer for precise temperature control, information display and data saving, and a multi-point temperature measuring instrument.

An integrated blood pump oxygenator comprises an an impeller housing supporting an impeller; with an annular hydrogel impeller packing material adjacent the bearings and around the shaft of the impeller. The oxygenator including a rollover outlet in the form of an annular chamber extending around a center pump housing member; and further including an annular chamber within an annular array of hollow fiber membranes in fluid communication with the annular chamber extending from the impeller around the center pump housing; wherein the annular chamber provides substantially perpendicular radial outward cross flow across the membranes.

A combined type device for preparing beer wort comprises a combined tank which is composed by a hot water tank (1) and a glycosylated filter groove (2) and a boiling stillpot (3), wherein the top of the hot water tank is also used as the slot bottom (211) of the glycosylated filter groove, both the hot water tank and the boiling stillpot are commonly connected with a steam pipe (72)and a condensate outlet conduit (75), the boiling stillpot is connected with a centrifugal pump (4), a hot water tank steam jacket (15)and a temperature control device (16)are arranged on the cylinder body of the hot water tank, a steam jacket (36), a bottom steam jacket (37), a wort outlet(323)and a dirt discharging port (320) are arranged on the boiling stillpot, and a plate exchanger (5) which is connected with an ice water inlet (52) and a wort oxygenator (6) which is connected with a fermentation tube (73) are arranged on the hot water tank. The invention has the advantages that raw materials are saved, and the device also can play a role of stabilizing the temperature of materials in the filter tank and avoid the phenomenon of difficult filtration due to the constriction of a slot layer and the pumping phenomenon of the wort in the filter tank, thereby the preparing quality of the beer wort can be greatly increased, and simultaneously the investing cost can be lowered prominently.

An oxygenator module for gas exchange between blood and a gas in an extracorporeal lung support system, with several layers of semipermeable, gas-perfusable hollow fibers, wherein the hollow fibers of one of the layers are oriented at an angle of rotation about a central longitudinal axis of the oxygenator module with respect to the hollow fibers of another one of the layers, and with a potting which extends along the central longitudinal axis and in which the hollow fibers are fixed, wherein the potting defines a cavity that extends along the central longitudinal axis and in which the hollow fibers are arranged and which is blood-perfusable in the direction of the central longitudinal axis, wherein the potting has an essentially circular inner sheath surface that limits the cavity radially outward: as well as a method for producing the oxygenator module.

In a device for handling blood in extracorporeal blood circulation that has at least one oxygenator, one heat exchanger, and one blood filter, the inlets and outlets in the oxygenator / heat exchanger unit are embodied such that a blood flow cross section of A≧80 mm2, preferably A≧120 mm2, is assured. The device can also be operated in an isolated form as a single structural part, which takes on the functions of an oxygenator and a heat exchanger with a blood filter. If a pump is provided in the device, then the pump drive can be removed as needed.

Apparatus for oxygenating an enclosed space as well as removing carbon dioxide from the enclosed space.