Pumping apparatus for perfusion and other fluid catheterization procedures
US5529463A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 19, 1994 |
| Grant date | Jun 25, 1996 |
| Priority date | — |
| Expiry date | Apr 19, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S128/12
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A pumping apparatus which is particularly useful in catheterization procedures has two pumps supported in a parallel arrangement. The pumps are engaged by an actuating rod connected to a power cylinder which reciprocates longitudinally between the two pumps. The two pumps are held within the housing such that only the plunger element of one pump is capable of movement in response to the actuating member while only the barrel element of the other pump is capable of movement in response to the actuating member. By way of this linkage, during movement of the actuating rod, one pump performs a pumping stroke while the other pump performs a suction stroke.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.