A - Human Necessities – 61 – M
Patent
A - Human Necessities
61
M
A61M 25/00 (2006.01)
Patent
CA 2390992
An improved aortic cannula is provided for use in heart by-pass surgery The cannula includes an elongated tube with a terminal end The terminal end has a ramped surface leading to the discharge opening The ramped surface terminates in a spoon-shaped lip The spoon-shaped lip directs blood out of the cannula opening toward the ascending aorta or aortic arch in a U-shaped dispersion so as to preclude impact on the aortic wall A bead adjacent the opening facilitates dispersion of the exiting blood The opening has an upper edge with an inverted V-shaped contour which also facilitates dispersion of the blood
L'invention concerne une canule aortique améliorée pouvant être utilisée pour un pontage cardiaque. Cette canule comprend un tube allongé pourvu d'un embout. Cet embout présente une surface inclinée conduisant vers l'orifice d'évacuation. La surface inclinée se termine par une lèvre en forme de cuillère. Cette lèvre achemine le sang hors de l'ouverture de la canule vers l'aorte ou vers l'arche de l'aorte ascendante selon une dispersion en forme de U afin d'éviter de rencontrer la paroi de l'aorte. Un bourrelet placé à proximité de l'ouverture facilite la dispersion du sang. L'ouverture comprend un bord supérieur présentant un contour en forme de V inversé qui facilite également la dispersion du sang.
Bcf Llp
Grooters Ronald K.
LandOfFree
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