Aortic cannula with reduced velocity flow-through tip

Details Aortic cannula with reduced velocity flow-through tip Aortic cannula with reduced velocity flow-through tip

1998-04-30

1999-11-02

Stright, Jr., Ronald K.

Surgery

Means for introducing or removing material from body for...

Treating material introduced into or removed from body...

604272, 604 30, A61M 500, A61M 532

Patent

active

059761148

ABSTRACT:
An improved aortic cannula is formed from a cannula body and a tip provided on the distal end of the cannula body wherein the tip is designed to accommodate the fluid flow requirements of an extracorporeal bypass system while simultaneously minimizing any possible adverse impact of the cannula and fluid flow on the vessel in which the cannula is received. The tip has an axial fluid discharge aperture provided at the distal end thereof through which a portion of the fluid exiting the cannula flows. In addition, at least one lateral fluid discharge aperture is provided in the sidewall of the tip. A scoop or other diverting member is formed in the sidewall to direct a portion of the fluid flowing through the tip to exit the cannula through the lateral fluid discharge apertures.

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Groom RC, Hill AG, Kuban B, Oneill W, Akl BF, Speir AM, Koningsberg J, Sprissler GT, Shakoor M, Massimiano S, Burton NA, Albus RA, Macmanus Q and Lefrak EA, "Aortic Cannula Velocimetry" Perfusion 1995; 10: 183-188.
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