A - Human Necessities
61
M
128/80
A61M 5/00 (2006.01) A61M 5/158 (2006.01) A61M 25/00 (2006.01)
Patent
CA 1167727
ABSTRACT OF THE DISCLOSURE A dual lumen cannula particularly for use in haemodialysis by inserting the cannula into the subclavian or femoral vein of a patient to contemporaneously remove blood from the vein for treatment and to return treated blood to the vein downstream from the point of removal. The cannula includes a pair of lumens separated by a septum. Blood is withdrawn through one of the lumens and treated blood is returned through the other lumen. The cannula is formed from a flexible thermo-plastic material and is sufficiently flexible to permit bending to conform to the shape of the vein without damage or kinking. The cannula has a peripheral generally cylindrical wall with a septum extending between spaced locations on the interior surface of the wall to define a pair of discrete lumens and at least one of the lumens is deformed by increasing its wall thickness at its end to facilitate insertion.
390997
Hirons & Rogers
Vas-Cath Of Canada Limited
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