Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Harri Jukarainen0
Taina Tjäder0
Ulla Calvo Alonso0
Wolfgang Kaufhold0
Christian Wamprecht0
Eeva Lukkari-Lax0
Faisal Shafiq0
Hannu Nikander0
...
Date of Patent
April 24, 2018
0Patent Application Number
134997010
Date Filed
September 30, 2010
0Patent Citations Received
Patent Primary Examiner
Patent abstract
The present invention relates to novel intrauterine systems and to methods for manufacturing these systems. An intrauterine system according to the invention comprises a reservoir and a continuous, closed and flexible frame. The frame comprises a thermoplastic polyurethane elastomer made of a polycarbonate diol, 1,6-hexamethylenediisocyanate, and a chain extender.
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