Apparatus for controlling the flow of intravenous fluid to a patient
US4300552A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 4, 1980 |
| Grant date | Nov 17, 1981 |
| Priority date | — |
| Expiry date | Apr 4, 2000 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/7848
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Apparatus is included in a system for controlling the flow of intravenous fluid from a source to a patient. Such apparatus is manually adjustable to vary the rate of such fluid flow. Desired rates of fluid flow may also be set in such system when the apparatus is included in the system. The system then overrides any previous manual adjustment of such apparatus and adjusts the rate of fluid flow in accordance with any such setting. When a desired rate of fluid flow has been preset into the system, the system then operates to adjust the rate of fluid flow in an instantaneous basis so that the desired rate of fluid flow maintained. The apparatus is removably disposed in the system for controlling the flow of fluid to the patient. Even after the adjustment by the system of the rate of fluid flow in accordance with any setting, the apparatus may be removed from the system to provide a rate of fluid flow in accordance with the manual adjustment of the apparatus. A plug member in the apparatus defines a passage communicating at a first position with an inlet line and, at a displaced position in a particular direction, with an outlet line. A resilient member such as a diaphragm may be disp…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.