Medizinische Spritze, Dichtung zur Verwendung für die Spritze und Dichtungsherstellungsverfahren

Details

Veröffentlichungs-Nr.

EP3225270

Aktenzeichen

EP17160102

Anmeldetag

9. März 2017

Veröffentlichung

5. Juni 2024

Erteilung

5. Juni 2024

Rechtsraum

EP

IPC

A61M5/315

Abstract

A gasket (13) to be used for a syringe is provided, which includes a main body (14) made of an elastic material, and a film (15) provided on a surface of the main body (14). The gasket (13) has an annular groove (22) formed circumferentially in a surface portion of the film present in the circumferential surface portion thereof. The annular groove (22) has outer edge portions (24) provided along opposite edges (23) thereof as projecting from an unprocessed surface portion of the film. The annular groove (22) has a groove formation start point and a groove formation end point which are connected to each other in a groove connection region, and the outer edge portions (24) provided along the opposite edges of the annular groove have a maximum-to-minimum height difference of not greater than 5 µm in the groove connection region.

Anmelder

Firma

Sumitomo Rubber Industries, Ltd.

Land

🇯🇵 Japan

Fachgebiete