Bubble-type blood oxygenator with baffles

Claim 2

In a bubble-type blood oxygenator having a blood inlet, an oxygen inlet, an oxygenated-blood outlet disposed for passing oxygenated-blood to a defoaming section and a gas disengaging section, the improvement which consists essentially of an elongated tubular oxygenating chamber having a vertical longitudinal axis, a baffle positioned within said oxygenating chamber, said baffle having superposed flat plates angularly displaced and each extending in a direction substantially parallel to the axis of said oxygenating chamber, said blood and oxygen inlet being at a lower end of the chamber, said oxygen inlet having an oxygen disperser connected thereto, and said outlet for oxygenated blood being at the upper end of the chamber.

Claim 3

The bubble-type blood oxygenator of claim 1, wherein two flat plates are superposed one above the other and disposed substantially perpendicular to each other.

Claim 4

The bubble-type blood oxygenator of claim 1, wherein two sections of flat plates are superposed one above the other, each section of flat plates having a + configuration in horizontal cross section and being angularly displaced one section relative the other.

Claim 5

The bubble-type blood oxygenator of claim 3, wherein a common hollow cylinder joins both superposed sections, said common hollow cylinder having a temperature-controlled liquid inlet channel and a temperature-controlled liquid outlet channel, said common hollow cylinder defining a heat exchange member.

Claim 6

The bubble-type blood oxygenator of claim 1, wherein four radially oriented flat plates project about a hollow cylinder, the axis of the hollow cylinder being substantially parallel to the axis of said oxygenating chamber.

Claim 7

The bubble-type blood oxygenator of claim 1, wherein one of said plates is hollow and includes a temperature-controlled liquid inlet channel and a temperature-controlled liquid outlet channel, said hollow plate defining a heat exchange member.

Claim 8

The bubble-type blood oxygenator of claim 5, wherein two radially oriented flat plates project from opposite sides of the said hollow plate, the baffle having a + configuration in horizontal cross section.

Claim 9

IN A BUBBLE-TYPE BLOOD OXYGENATOR HAVING A BLOOD INLET, AN OXYGEN INLET, AN OXYGENATED-BLOOD OUTLET DISPOSED FOR PASSING OXYGENATED-BLOOD TO A DEFOAMING SECTION AND A GASS DISENGAGING SECTION, THE IMPROVEMENT WHICH CONSISTS ESSEN ITIALLY OF AN ELONGATED TUBLAR OXYGENATING CHAMBER HAVING A VERTICAL LONGITUDINAL AXID, A BAFFLE POSITIONED WITHIN SAID OXY- GENATING CHAMBER, SAID BAFFLE HAVING SUPERPOSED FLAT DISKS JOINED BY AN AXIALLY POSITIONED HOLLOW CYLINDER HAVING A TEMPERATURE-CONTROLLED LIQUID INLET CHANNEL AND A TEMPERATURECONTROLLED LIQUID OUTLET CHANNEL, SAID HOLLOW CYLINDER DIFINING A HEAT EXCHANGE MEMBER, SAID DISKS EACH HAVING A PLURALITY OF PERFORATIONS AND BEING HORIZONTALLY POSITIONED WITHIN SAID CHAMBER, SAID BLOOD AND OXYGEN INLET HAVING AT A LOWER END OF THE CHAMBER, SAID OXYGEN INLET HAVING AN OXYGEN DISPERSER CONNECTED THERETO, AND SAID OUTLET FOR OXYGENATED BLOOD BEING AT THE UPPER END OF THE CHAMBER.

Claim 10

IN A BUBBLE-TYPE BLOOD OXYGENATOR HAVING A BLOOD INLET, AN OXYGEN INLET, AN OXYGENATED-BLOOD OUTLET DISPOSED FOR PASSING OXYGENATED-BLOOD TO A DEFOAMING SECTION AND A GASS DISENGAGING SECTION, THE IMPROVEMENT WHICH CONSISTS ESSEN ITIALLY OF AN ELONGATED TUBLAR OXYGENATING CHAMBER HAVING A VERTICAL LONGITUDINAL AXID, A BAFFLE POSITIONED WITHIN SAID OXY- GENATING CHAMBER, SAID BAFFLE HAVING SUPERPOSED FLAT DISKS JOINED BY AN AXIALLY POSITIONED HOLLOW CYLINDER HAVING A TEMPERATURE-CONTROLLED LIQUID INLET CHANNEL AND A TEMPERATURECONTROLLED LIQUID OUTLET CHANNEL, SAID HOLLOW CYLINDER DIFINING A HEAT EXCHANGE MEMBER, SAID DISKS EACH HAVING A PLURALITY OF PERFORATIONS AND BEING HORIZONTALLY POSITIONED WITHIN SAID CHAMBER, SAID BLOOD AND OXYGEN INLET HAVING AT A LOWER END OF THE CHAMBER, SAID OXYGEN INLET HAVING AN OXYGEN DISPERSER CONNECTED THERETO, AND SAID OUTLET FOR OXYGENATED BLOOD BEING AT THE UPPER END OF THE CHAMBER.