Antegrade cardioplegia cannula
US5013296A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 21, 1989 |
| Grant date | May 7, 1991 |
| Priority date | — |
| Expiry date | Sep 21, 2009 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2210/125
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A cannula adapted for antegrade administration of cardioplegic solutions during surgical procedures on the heart. The cannula includes a flow lumen having a smooth interior surface to reduce hemolysis when blood is passed therethrough during reperfusion. Structures are included to allow the wall of the vessel, generally the aortic root, to be readily pierced so that fluid may pass through the flow lumen of the cannula into the heart. A suture flange is provided to secure the cannula to the heart. A pressure lumen is provided to communicate the pressure within the heart to a location where it can be monitored. A vent line is also provided to allow a surgeon to readily vent fluids out of the heart.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.