Medicament dispensing device
OwnerEric Segalinventor
Life of this patent
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Abstract
A portable medicament dispensing device having a mechanism which is not susceptible to jamming for dispensing the medication to a user. The device employs a coupling for coupling the relative motion between reciprocating body members housing the ancillary components and a barrel plunger associated with the syringe. One embodiment provides a pivoting coupling whereas an alternate uses a rack and pinion system. The advantage of simplifying such mechanisms results in a structure which has smooth unencumbered motion with fewer parts to avoid mechanical jamming during use.
Claims10
An automatic injection device for dispensing a medicament, said device having a needle connected to a barrel adapted to retain medicament and a plunger within said barrel, characterized in that said device comprises:
- a first body member and a second body member coaxially mounted for reciprocal movement, and housing said needle, said barrel and said plunger;
- drive means connected between said first body member and said second body member for effecting said reciprocal movement;
- and
- coupling means on each of said first body member and said second body member coupled with said drive means, whereby upon reciprocal movement of said first body member and said second body member, said needle is exposed and said plunger is moved within said barrel for discharging said medicament.
A method for dispensing a medicament from a device having a needle, connected to a barrel adapted to retain medicament and a plunger within said barrel, said device having a first body member and a second body member mounted thereon for reciprocal movement comprising the steps of:
- providing a cover means for covering a tip of said needle;
- positioning said device in contact adjacent a user's skin;
- urging said device against said user to expose, in a first stage, said needle through said cover means;
- and
- urging, in a second stage, said device against said user to reciprocally move said cover means and said plunger where said needle penetrates a user's skin and said medicament is forced through said barrel and said needle to deliver said medicament to said user.
Dependencies are inferred from the claim text.