313 results about "Oxygenator" patented technology

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.

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.

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.

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.

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.