Device for the controlled infusion of medications
US4568335S · kind S · design
Assignee
Inventors
Key dates
| Filing date | Sep 7, 1982 |
| Grant date | Feb 4, 1986 |
| Priority date | — |
| Expiry date | Feb 4, 2001 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M5/31595
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A device comprising a container and a threaded rotatable plunger mechanism including means for controllably advancing the plunger through the container can administer a precise dose of a drug-containing fluid subcutaneously at regular intervals. The means for controllably advancing the plunger comprises a drive tube concentrically mounted about a threaded rod operating within the container, the drive tube having ramp means at the upper end thereof, a ratchet head including a resilient member in operative communication with the upper end of the drive tube and a rotatable knob adjacent the ratchet head whereby rotation of the knob in one direction rotates the drive tube and the threaded rod to deliver the fluid through an outlet of the container.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.