Stell und Korrigiermechanismus für einen Stiftinjektor und Stiftinjektor mit einem Solchen Mechanismus

Details

Veröffentlichungs-Nr.

EP4725526

Anmeldetag

8. Oktober 2024

Veröffentlichung

15. April 2026

Rechtsraum

EP

IPC

A61M5/315, A61M5/20, A61M5/24(QUINN MICHAEL et al.)(KIILERICH EBBE et al.)

Abstract

A dose setting-correcting mechanism for a pen injector comprising a rotatable coupling sleeve having a proximal end (1a, 101a) and a distal end (1b, 101b), a rotatable ratchet sleeve (2, 102) surrounding the coupling sleeve (1, 101) and splined therewith axially, a reset nut (3, 103), a setting ring (6, 106), a crown gear (4, 104), said elements arranged around longitudinal axis A. For setting a dose rotation of the coupling sleeve (1, 101) in a first direction causes rotation of the ratchet sleeve (2, 102). For dose correcting the coupling sleeve (1, 101) is firstly rotated with respect to the ratchet sleeve (2, 102) and the reset nut (3, 103) is rotated along with the coupling sleeve (1, 101), wherein rotation of the reset nut (3, 103) causes sliding movement between the teeth of the reset nut and the teeth of the crown, and in result the axial movement of the crown gear (4, 104) and decoupling the crown gear (4, 104) from the setting ring (6, 106) so that the setting ring (6, 106) rotates to correct the dose. A pen injector comprising such mechanism.

Anmelder

Firmen

Nemera Szczecin spólka z ograniczona odpowiedzialnoscia
NEMERA INSIGHT CHICAGO LLC

Land

🇵🇱 Polen