Aortic cannula with spoon-shaped lip
US6758834B2 · kind B2 · utility
10Cited by
42References
27Claims
0Family size
Inventor
Key dates
| Filing date | Nov 30, 2000 |
| Grant date | Jul 6, 2004 |
| Priority date | — |
| Expiry date | Feb 3, 2021 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2210/127
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.