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:
Jun. 22, 2004
Filed:
Jan. 15, 2002
Applicant:
Inventor:
Joaquina Faour, Buenos Aires, AR;
Assignee:
Osmotica Corp, Tortola, VG;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61K 9/22 ; A61K 9/24 ; A61K 9/32 ; A61K 9/36 ; A61K 9/44 ;
U.S. Cl.
CPC ...
A61K 9/22 ; A61K 9/24 ; A61K 9/32 ; A61K 9/36 ; A61K 9/44 ;
Abstract
Delivery devices capable of delivering one or more active substances by diffusion through plural micropores in the membrane ( ) or by osmotic pumping through one or more preformed passageways ( ) in the membrane are provided. The device ( ) has an about centrally located expandable core ( ) completely surrounded by an active substance-containing layer ( ), which is completely surrounded by the membrane. The device is capable of delivering insoluble, slightly soluble, sparingly soluble and very soluble active substances to an environment of use. The preferred delivery rate is zero order. The device can deliver an active substance for a period of about 12-24 hours.