Perfusion cannula, method and system
US6676650B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 22, 1999 |
| Grant date | Jan 13, 2004 |
| Priority date | — |
| Expiry date | Sep 22, 2019 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2025/006
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A perfusion cannula for treating a patient. The, cannula includes a hollow tube adapted for insertion into a vessel of the patient and adapted for fluid flow. The tube has a proximal end. The tube has a primary hole disposed in proximity to the proximal end for release of fluid from the tube and at least a first perfusion hole disposed in the tube wall for release of fluid from the tube. The cannula includes a widener extending from the outer surface of the tube and effectively extending the outer diameter of the tube. The inner diameter of the tube is smooth and continuous and has a circular, cross-section throughout. The widener is in spaced relation from the proximal end and in proximity to and in operational relation with the first perfusion hole wherein fluid in able to escape from the first perfusion hole without obstruction by the vessel wall when the tube is in the vessel wall. A perfusion cannula for treating a patient having at least a first ridge. A system for treating a patient. A method for treating a patient.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.