The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 01, 2003
Filed:
Mar. 30, 2001
Henrik Ljunggreen, Ballerup, DK;
Jens Ulrik Poulsen, Virum, DK;
Soren Aasmul, Holte, DK;
Lars Hofmann Christensen, Jyllinge, DK;
Jens Moller-Jensen, Copenhagen, DK;
Peter Moller-Jensen, Copenhagen, DK;
NNA/S, Bagsvaerd, DK;
Abstract
A drug delivery device comprising a housing ( ) with a drug container ( ) being provided with delivering means comprising a piston ( ) for expelling a drug ( ) from the drug container ( ). The housing ( ) further comprising a displaceable piston rod ( ) abutting the piston ( ) of the drug container ( ) and rotating means being in engagement with the piston rod ( ), said rotating means being provided with a one-way mechanism. The one-way mechanism comprises a helical spring ( ) wound tightly around an axle ( ), one end of said helical spring ( ) being fixed in relation to the housing ( ), the other end of the helical spring ( ) being in a free state.