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. 27, 1976
Filed:
Nov. 11, 1974
Applicant:
Inventor:
Rene Cournut, Bordeaux-Cauderan, FR;
Assignee:
Apamed Anstalt, Vaduz, FL;
Primary Examiner:
Int. Cl.
CPC ...
A61F / ; A61M / ;
U.S. Cl.
CPC ...
128130 ; 128260 ;
Abstract
The invention is directed to an active intrauterine device comprising a hydrophobic substrate of high mechanical resiliency, wherein the substrate including within the volume thereof inclusions of polymerizied hydrophilic substances grafted on the hydrophobic substrate and cross-linked, and in which water-soluble chemical agents have been stored previously, these agents being adapted to perfuse through the hydrophobic substrate when the latter is placed in an aqueous medium.