Apparatus for controlling fluid flow rate
US4917687A · kind A · utility
26Cited by
16References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 1, 1989 |
| Grant date | Apr 17, 1990 |
| Priority date | — |
| Expiry date | Feb 1, 2009 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M5/16881
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A variable infusion device for administering liquids parenterally to a patient is formed of inexpensive plastic members. The device includes an elongated passage defined between two members of the device which are bonded to one another. A third member is movable relative to the first and second members to change the length of the elongated passage through which liquid flows thereby changing the flow rate of the liquid through the device. The liquid flow rates to the patient can be incrementally adjusted over a wide range of flow rates. Settings also include a flow rate for merely keeping the patient's vein open.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.