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. 06, 2026
Filed:
Apr. 07, 2022
Bayer Oy, Turku, FI;
Taina Tjäder, Piispanristi, FI;
Joonas Mikkonen, Lempäälä, FI;
Antti Töyrylä, Turku, FI;
Jari Riski, Parainen, FI;
Petri Perälä, Paimio, FI;
Heikki Lyytikäinen, Naantali, FI;
Esko Moisala, Asikkala, FI;
Juuso Pohjola, Turku, FI;
Jorma Roine, Turku, FI;
Bayer Oy, Turku, FI;
Abstract
According to an aspect of the present invention, there is provided an apparatus for ultrasonic welding of a removal thread () of an intrauterine system (). The apparatus comprises a welding jig () comprising a welding groove (), the welding groove having a length Lg, a width Wg and a depth Dg and a bottom () with concave shape. The apparatus further comprises a sonotrode () having a length Ls that is 150-220% of Lg, a width Ws of a welding tip () of the sonotrode that is 80-98% of Wg and a depth Ds. Further, the welding tip of the sonotrode has a concave shape.