公开(公告)号：US3807958A

公开(公告)日：1974-04-30

申请号：US25971372

申请日：1972-06-05

申请人： HARVEY RES CORP WILLIAM

发明人： BRUMFIELD R ,  SIMMONS E

IPC分类号： A61M1/32 ,  A61M1/36 ,  A61M1/03

CPC分类号： A61M1/32 ,  A61M1/322 ,  A61M1/369 ,  B01D63/06 ,  Y10S128/03

摘要： A blood foam return exchanger device provides multiple fluid flow guidance channels disposed around the exterior of a bloodoxygen fluid exchanger having multiple oxygenator tubes. The guidance channels, formed by multiple fins disposed parallel to the tubular axis of symmetry of the fluid exchanger, provide additional residence time in the fluid flow channels for the gaseous exchange of the oxygen gas-blood two-phase mixture while descending the channels. The return shell has a return cap terminus disposed a spaced holding chamber volume above the top header plate of the exchanger, turning the blood foam flow downward 180* after ascending the oxygenator tubes. The multiple fins can provide heat exchange surfaces for further precise temperature control of the blood foam. The blood foam exiting from the return exchanger device flows through the surrounding defoamer filter, separating foam into blood and exchanged gases. A relatively short fluid exchanger utilizes the additional blood foam residence time provided by the guidance channels. Still another blood foam return exchanger device has an integral 180* U-bend return loop extension on each oxygenator tube of the fluid exchanger, and an oxygenator tube return length interiorly extending adjacently down the internal perimeter of the heat exchanger boundary case. Each exit terminus of an oxygenator tube return length extends through the exchanger boundary case, providing an exit for the blood foam into and through the surrounding annular defoamer filter.

摘要翻译： 血液回流换热器装置提供多个流体引导通道，其设置在具有多个氧合器管的血 - 氧流体交换器的外部周围。 引导通道由平行于流体交换器的管状对称轴线的多个翅片形成，在流体流动通道中提供额外的停留时间，用于氧气 - 血液两相混合物的气相交换，同时使通道下降。 返回壳具有返回盖终端，其在交换器的顶部集管板上方设置间隔开的保持室容积，在加氧管上升之后将血液泡沫流动下降180°。 多个翅片可以提供热交换表面以进一步精确地控制血液泡沫。 从返回交换器装置排出的血液泡沫流过周围的消泡剂过滤器，将泡沫分离成血液和交换的气体。 相对短的流体交换器利用由引导通道提供的额外的血液泡沫停留时间。 另一种血液泡沫回流换热器装置在流体交换器的每个充氧器管上具有整体的180度U形弯曲返回环延伸部，以及在热交换器边界壳体的内部周边内部相邻延伸的氧合器管返回长度。 氧合器管的返回长度的每个出口终端延伸穿过交换器边界箱，为血液泡沫提供并通过周围的环形消泡剂过滤器的出口。