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:
Jan. 04, 2005
Filed:
Nov. 23, 2000
Patrick Alexandre, Gray, FR;
Guy Delannoy, Saint Medard en Jalles, FR;
Philippe Gautier, Le Plessis Pate, FR;
Olivier Simonin, Toulouse, FR;
Patrick Alexandre, Gray, FR;
Guy Delannoy, Saint Medard en Jalles, FR;
Philippe Gautier, Le Plessis Pate, FR;
Olivier Simonin, Toulouse, FR;
Crossject, Paris, FR;
Abstract
The invention relates to a needless syringe (), comprising in succession, a gas generator (), a gas expansion chamber () and a means for retaining the particles of an active agent, comprising at least one lid () which breaks under the influence of the gas coming from the generator (). The main characteristic of the inventive syringe () is that the tube () has a cylindrical upstream part in which the means retaining the particles are fixed, said upstream part having a substantially constant cross-section over a length that is more than twice its inner diameter.