Aortically located blood pumping catheter and method of use
US4919647A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 13, 1988 |
| Grant date | Apr 24, 1990 |
| Priority date | — |
| Expiry date | Oct 13, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S415/90
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A catheter and a method of use for pumping of blood through a living being's vascular system. The catheter has an expandable distal end portion and is introduced into the aorta so that that portion is at a predetermined position spaced from the aortic valve. The catheter comprises an expandable pump and a flexible, skirt-like barrier, both located at the distal end portion. The distal end portion also has an inlet and an outlet. When the catheter is located at the predetermined position its inlet is in fluid communication with the aorta distally of the pump while its outlet is in fluid communication with the aorta proximally of the pump, and the barrier engages the inner periphery of the aorta. Operating the pump causes blood to flow through the aorta, with the barrier ensuring that substantially all of the blood flows into the inlet to the pump means and out the outlet from the pump means and not around the exterior of the distal end portion of the catheter as the pump is operated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.