Method for displacing fluid in tubing
US4563171A · kind A · utility
15Cited by
9References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 18, 1985 |
| Grant date | Jan 7, 1986 |
| Priority date | — |
| Expiry date | Jan 18, 2005 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M1/83
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method and apparatus for conveying fluids includes tubing and a tube clearing sleeve surrounding the tubing. The sleeve has a slick inner surface with a coefficient of friction less than that of the outer surface of the tubing. The sleeve is compressed between the fingers to compress the tubing and the compressed sleeve is advanced along the tubing to displace contents in the tubing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.