High speed sterile fluid transfer unit
US4347874A · kind A · utility
Inventors
Key dates
| Filing date | Oct 2, 1980 |
| Grant date | Sep 7, 1982 |
| Priority date | — |
| Expiry date | Oct 2, 2000 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61J1/20
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A sterile fluid transfer unit for intravenous fluids includes a large diameter silicone rubber tubing for use with a peristaltic type roller pump firmly pre-connected between two pieces of one-eighth diameter tubing, for connection respectively to a manufacturer's "Piggy-Back" bottle, and to a large container of diluent. The connections between the silicone rubber tubing and the smaller diameter plastic tubing are accomplished by the use of custom fitted spike-type plastic fittings which penetrate the silicone rubber tubing and which are cemented to the plastic tubing, and avoid any possibility of the seals being broken and liquid being spilled. One of the two smaller diameter plastic tubes has a shut-off clamp and a large vented spike connection for coupling to the large container supplying the diluent, and the other plastic tubing is provided with a threaded Luer type connection for receiving a small vented spike for filling of I.V.P.B.'s (manufacturers' piggyback vials) or an adaptor connection for filling a syringe.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.