Wide bubble traps

B - Operations – Transporting – 01 – D

Patent

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Details

B01D 17/12 (2006.01) A61M 1/36 (2006.01) B01D 19/00 (2006.01)

Patent

CA 2272307

An extracorporeal, flow-through bubble trap chamber (320) has improved bubble separating abilities at high flow rates and generates smaller bubbles. The chamber contains chamber-defining top wall (330), side walls (334, 336) and bottom wall (332) plus blood inlet/outlet ports (322, 344) which extend through top and bottom walls (330, 332) to bring blood into and out of the chamber (320). The chamber (320) preferably has a height that is less than 1.6 times the longest horizontal dimension of the chamber (320). As a result of this, blood flow through the chamber (320) is substantially horizontal. A common flow inlet/outlet tube (350), closed with a central partition (340) is also present.

L'invention porte sur une chambre extracorporelle de piégeage (320) de bulles à flux continu présentant des capacités de séparation améliorées de bulles pour des débits élevés, et produisant des bulles plus petites. La chambre comprend des parois supérieure (330), latérales (334, 336) et inférieure (332) et des orifices d'entrée/sortie (322, 344) de sang traversant les parois supérieure (330) et inférieure (332), et servant à introduire le sang dans la chambre (320) et à l'en extraire. La chambre (320) présente de préférence une hauteur de 1,6 fois inférieure à sa plus grande longueur. De ce fait la circulation du sang dans la chambre (320) est quasiment horizontale. L'invention comporte également un tube commun (350) d'entrée/sortie du flux de sang, fermé par une cloison centrale (340).

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