Hand-powered pumping apparatus for perfusion and other fluid catheterization procedures
US5492535A · kind A · utility
25Cited by
18References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 6, 1994 |
| Grant date | Feb 20, 1996 |
| Priority date | — |
| Expiry date | Apr 6, 2014 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M60/894
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A manually operated pumping apparatus which is particularly useful in catheterization procedures has two pumps supported in a housing in a parallel arrangement. The pumps are engaged by a rack and pinion actuating assembly which provides reciprocating linear movement to the two pumps during operation so that one pump performs a pumping stroke while the other pump simultaneously performs a suction stroke. The actuating assembly is driven by a drive assembly which converts rotation of a handle into linear motion usable by the rack and pinion members to drive the two pumps in their reciprocating pumping movements.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.