Search International and National Patent Collections

1. (WO2018130633) DRIVE ARRANGEMENT WITH ROTATIONALLY GEARED DRIVE ROD

Pub. No.:    WO/2018/130633    International Application No.:    PCT/EP2018/050715
Publication Date: Fri Jul 20 01:59:59 CEST 2018 International Filing Date: Sat Jan 13 00:59:59 CET 2018
IPC: A61M 5/315
A61M 5/20
Applicants: NOVO NORDISK A/S
Inventors: KLITMOSE, Lars, Peter
Title: DRIVE ARRANGEMENT WITH ROTATIONALLY GEARED DRIVE ROD
Abstract:
A geared drive arrangement comprises a stationary portion and a drive rod defining a reference axis and during operation being arranged to rotate and be moved axially corresponding to the reference axis, the drive rod comprising a first thread and a second thread. The drive arrangement further comprises a drive member comprising a drive thread in engagement with the drive rod first thread, and a nut portion comprising a propulsion thread arranged rotationally locked relative to the stationary portion and in engagement with the drive rod second thread. The drive member is arranged to rotate corresponding to the reference axis during operation, with the threaded engagement between the drive member and the drive rod causing the drive rod to rotate, and the threaded engagement between the nut portion and the drive rod causing the drive rod to move in the distal direction.