Self regulating blood pump with controlled suction
US5281112A · kind A · utility
18Cited by
32References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 7, 1992 |
| Grant date | Jan 25, 1994 |
| Priority date | — |
| Expiry date | Aug 7, 2012 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16L11/12
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A peristaltic pump having controlled suction. In one embodiment, the pump includes a tubing which is collapsed when the internal pressure of the tubing is equal to or less than ambient. In this state, the pump is unable to generate negative pressures. An air-tight housing may be provided over the tubing and connected to a vacuum source. Upon a vacuum being applied, the tubing is capable of controllably producing negative pressures, allowing the pump to be operated as a suction pump. In another embodiment the tubing exhibits a variable cross-sectional width.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.