10 results about "Oxygenators" patented technology

An antithrombotic surface-modified biomaterial is provided comprising a biomaterial substrate coated with a polymerizable dopamine-containing bioadhesive to which is attached one or more antithrombotic agents. A method of preparing the surface-modified biomaterial is also provided. The surface-modified biomaterial is beneficial for use in blood-contacting medical devices such as catheters, dialyzers and blood oxygenators to prevent or minimize the occurrence of thrombosis on the surface thereof.

The application provides a small blood oxygenator, belonging to the technical field of oxygenators, which comprises a shell, an oxygenator core body arranged in the shell, an upper end cover and a lower end cover respectively arranged on the vertical two sides of the shell, a liquid inlet connector connected to the lower end of one side of the shell, a liquid outlet connector connected to the upper end of the other side of the shell, an air inlet connector connected to the upper end cover, an air outlet connector connected to the lower end cover, and the liquid inlet connector, the liquid outlet connector, the air inlet connector and the air outlet connector are respectively connected with corresponding external channels through a butt joint structure. The application solves the problem that the air inlet, the air outlet, the liquid outlet and the liquid inlet of the existing small oxygenator are mostly connected with the corresponding external pipeline through a wire connection method when in use, and the positions of the air inlet, the air outlet, the liquid outlet and the liquid inlet are mostly connected with each other through a rubber ring to realize the leakage prevention function, the leakage prevention effect is not good, leakage may occur, and the normal use of the oxygenator cannot be guaranteed.

A method (200) for determining the total flow rate of exhaust gas exiting a gas exchange device (110) coupled to the circulatory system of a patient (10) is disclosed. The gas exchange device is configured to provide oxygen-rich blood to the circulatory system by exposing oxygen-deficient blood to oxygen provided by an incoming gas and to allow the passage of excess oxygen into the exhaust gas. The method involves the step of determining the total flow rate of exhaust gas from the concentration and flow rate of oxygen leaving the gas exchange device. The concentration is recovered from a sensor, while the flow rate is determined based on a mass equilibrium approach, and the amount of oxygen leaving the gas exchange device corresponds to the difference between the amount of oxygen supplied to the gas exchange device and the amount of oxygen absorbed by the blood during gas exchange.

An oxygenator is disclosed that includes a housing defining an interior with improved gas exchange fluid channels and / or heat exchange fluid channels. In some examples, the oxygenator includes gas exchange fluid channels for sequentially passing gas from a gas exchange fluid inlet, through one or more layers of gas exchange fibers extending in a first direction, through one or more layers of gas exchange fibers extending in a second direction, and out of a gas exchange fluid outlet. In some examples, the oxygenator includes a partition between the gas exchange chamber and the gas and heat exchange chamber that divides the interior. In some examples, the housing includes an isolation fluid barrier chamber configured to be filled with a flow of heat exchange fluid from the heat exchange fluid inlet to provide an isolation barrier between the outflow end of the gas exchange fiber and the gas exchange fluid outlet.

Methods and apparatus for controlling a flow rate of an oxygenator device are described. The method includes receiving a first temperature associated with a blower of the oxygenator device, wherein the first temperature is sensed by a temperature sensor of the oxygenator device, and adjusting a flow rate of oxygen provided to a blood oxygenator by the blower based, at least in part, on the first temperature.

The utility model discloses an impeller type aerator provided with a permanent magnet synchronous motor, and belongs to the technical field of aeration devices. An impeller type aerator equipped with a permanent magnet synchronous motor comprises a mounting plate, the permanent magnet synchronous motor is fixedly connected to the mounting plate, an aeration impeller is fixedly connected to the output end of the permanent magnet synchronous motor, and the aerator further comprises a telescopic rod fixedly connected to the mounting plate; the housing is connected to the mounting plate in a sleeving manner, and the housing is fixedly connected to the telescopic end of a telescopic rod; the air pump is fixedly connected to the mounting plate; through the arrangement of the housing and the air pump, the oxygenation impeller can be wrapped in a relatively closed space through the mounting plate and the housing, then gas is injected into the housing, so that the water level in the housing is lowered, the oxygenation impeller is further arranged in a space without water, proliferation of moss on the oxygenation impeller is reduced, and the oxygenation effect is improved. And long-term use of the oxygenation impeller is facilitated.

The disclosure relates to devices and methods for extracorporeal conditioning of blood. Extracorporeal blood oxygenators and blood oxygenator components, such as conditioning modules, are described. An extracorporeal blood oxygenator includes a conditioning module having an external frame, an inlet cover, an outlet cover, and an internal chamber. A fiber assembly is disposed within the internal chamber and a potting material on the fiber assembly creates a circumferential seal that defines a passageway through the fiber assembly having a substantially circular cross-sectional shape. A fluid inlet is in fluid communication with the passageway, has a lumen that extends along an axis that is substantially perpendicular to the fiber assembly, and has an internal curvilinear surface adjacent the fiber assembly. A fluid outlet on the opposite side of the fiber assembly also has a lumen that extends along an axis that is substantially perpendicular to the fiber assembly.

Methods and apparatus for controlling a flow rate of an oxygenator device are described. The method includes receiving a first temperature associated with a blower of the oxygenator device, wherein the first temperature is sensed by a temperature sensor of the oxygenator device, and adjusting a flow rate of oxygen provided to a blood oxygenator by the blower based, at least in part, on the first temperature.

The application discloses a kind of uniform underwater oxygenators, it is related to fish culture oxygenator technical field, it includes oxygenator main body, the inside of oxygenator main body is provided with main cavity, the inner wall of main cavity is slidably connected with oxygenation push plate, the outer surface both sides and top of oxygenation push plate are equipped with oxygenation push rod, and the corresponding positions of oxygenator main body side wall are equipped with multiple groups of first sliding valve.The oxygenation push plate, oxygenation push rod, first sliding valve and second sliding valve are set, the mixed liquid is sent into main cavity by unified water-air bubble mixture, then the oxygenation push plate extrudes the mixed liquid in chamber, so that it flows into oxygenation spout from oxygenation flow channel, and then vortex ring is generated, since the oxygenation vortex ring is the mixed liquid generated in the same batch, the oxygen content is the same, by controlling the stroke time of different vortex rings, the stability of oxygenation vortex ring can be controlled, the rupture of different distances is realized, and finally uniform oxygenation is realized.

The disclosure relates to devices and methods for extracorporeal conditioning of blood. Extracorporeal blood oxygenators and blood oxygenator components, such as conditioning modules, are described. An extracorporeal blood oxygenator includes a conditioning module having an external frame, an inlet cover, an outlet cover, and an internal chamber. A fiber assembly is disposed within the internal chamber and a potting material on the fiber assembly creates a circumferential seal that defines a passageway through the fiber assembly having a substantially circular cross-sectional shape. A fluid inlet is in fluid communication with the passageway, has a lumen that extends along an axis that is substantially perpendicular to the fiber assembly, and has an internal curvilinear surface adjacent the fiber assembly. A fluid outlet on the opposite side of the fiber assembly also has a lumen that extends along an axis that is substantially perpendicular to the fiber assembly.