Antegrade/retrograde switch for cardioplegia cannulae
US5755686A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 29, 1997 |
| Grant date | May 26, 1998 |
| Priority date | — |
| Expiry date | Jan 29, 2017 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2202/047
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A switch for selectively directing fluid to either one of two catheters and for inflating a "manually" inflatable balloon of one of the catheters when fluid is directed to that catheter. The switch includes a valve mechanism that is operatively linked with a balloon inflation mechanism such that the balloon is inflated when fluid is directed to that catheter, and the balloon is deflated when fluid is directed to the other catheter. The switch is particularly adapted for use in administering cardioplegia solution to a patient's heart alternatively via an antegrade cardioplegia catheter and a retrograde cardioplegia catheter. A method of use of the switch is also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.