Aortic cannula
US6387087B1 · kind B1 · utility
20Cited by
18References
2Claims
0Family size
Inventor
Key dates
| Filing date | Dec 11, 1996 |
| Grant date | May 14, 2002 |
| Priority date | — |
| Expiry date | Sep 28, 2018 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2210/127
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An improved aortic cannula for use in heart bypass surgery comprises an elongated tube with a terminal end. The improvement relates to the provision of two large openings adjacent the terminal end of the cannula, and an inverted cup at the terminal end to redirect the flow of blood as the blood exits through the discharge openings. The cup deflects a portion of the blood rearwardly so as to slow the velocity of the blood. The openings and the cup serve to reverse the flow of blood toward the ascending aorta and away from the aortic arch so as to prevent dislodging plaque, and thereby decreasing the chances of stroke.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.