Applicator for semi-solid medications
US6364854B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 7, 1999 |
| Grant date | Apr 2, 2002 |
| Priority date | — |
| Expiry date | Sep 7, 2019 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M31/00
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An applicator for semi-solid medications comprises a tubular body (20) having a rounded dispensing end (21) provided with at least one opening (26) and a grasping end (22), the inner surface of a proximal portion of said tubular body defining a reservoir for the medication, a plunger (30), initially housed inside the tubular body, which plunger is provided with a rod (31) and grasping means (33), a piston (40), positioned in sealing contact with the inner surface of said tubular body providing a closure for the medication reservoir, wherein said piston has a longitudinal hole (45) through which rod (31) of the plunger is disposed, and wherein said piston initially abuts on a stop means (25) when the applicator is received by the user, a coupling means (35, 46) between rod (31) and piston (40), a closure means for sealingly closing off said opening (26) on said dispensing end, wherein the plunger (30) is extractable from the tubular body until the rod (31) becomes engaged with the piston (40) by the coupling means, whereupon the plunger together with the piston is displaceable along the tubular body towards the dispensing end (21) for expelling the medication through opening (26), a…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.