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. 17, 2018
Filed:
Nov. 16, 2015
Rudolf Matusch, Marburg, DE;
Rudolf Matusch, Marburg, DE;
LTS LOHMANN THERAPIE—SYSTEME AG, Andernach, DE;
Abstract
A method for filling a cylinder/piston unit () for a needle-free injector comprising a chamber () arranged in a cylinder (), for receiving an injection solution (), a front wall () having at least one nozzle borehole or an outlet element (), and a second piston () arranged to move in the chamber. The chamber () is made in two parts with a first chamber () and a concentric second chamber () having a smaller cross section than the first chamber. A first piston () closes the first chamber () and the second piston closes the second chamber (). The second piston comprises at least one flow channel () or the first chamber comprises at least one closable, axially oriented freeze-drying channel (), and the second chamber () comprises at least one axially oriented flow channel (), on the respective rear ends of the chambers ().