Maxime GAILLOT,Roberta LEAH,Declan REILLY,Mark Digby TEUCHER,Paul Graham HAYTON,Jonathan Paul RIDLEY,James Robert COOP
申请号：
US16062010
公开号：
US20180369491A1
申请日:
2016.12.13
申请国别(地区):
US
年份:
2018
代理人:
摘要：
Medical delivery device (10) comprises a rod element (30) and a dosage member (60). The rod element (30) has a stem (310) with a longitudinal axis (380), a first thread arrangement (3320, 3330), a distal end and a proximal end. The dosage member (60) comprises a delivery orifice (620) and a chamber body (610) with a distal end, a proximal end and a hollow interior. The stem (310) of the rod element (30) extends into the interior of the chamber body (610) of the dosage member (60) and the delivery orifice (620) is arranged adjacent to the proximal end of the stem (310) of the rod element (30). In a dosing status of the medical delivery device (10), the rod element (30) is movable along its longitudinal axis (380) relative to the delivery orifice (620) of the dosage member (60) by the first thread arrangement (3320, 3330) of the stem (310) of the rod element (30) and a second thread arrangement (650) travelling along each other. Thereby, a dosage chamber (6110) is formed in the interior of the chamber body (610) of the dosage member (60) between the stem (310) of the rod element (30) and the delivery orifice (620) which dosage chamber (6110) increases when the rod element (30) moves away from the delivery orifice (620). The dosage member (60) comprises the second thread arrangement (650). Thereby, in the dosing status of the medical delivery device (10), the first thread arrangement (3320, 3330) of the rod element (30) engages the second thread arrangement (650) of the dosage member (60).
