Maxime GAILLOT,Roberta LEAH,Declan REILLY,Mark Digby TEUCHER,Paul Graham HAYTON,Jonathan Paul RIDLEY,James Robert COOP
申请号：
US16062014
公开号：
US20180369493A1
申请日:
2016.12.13
申请国别(地区):
US
年份:
2018
代理人:
摘要：
A medical delivery device (1) comprises a rod element (3), a dial shell (4), a delivery orifice (62) and a switching mechanism (7, 36). The rod element (3) has a stem (31) with a longitudinal axis (38), a first thread arrangement (35, 36), a proximal end and a distal end. The dial shell (4) has a second thread arrangement (411). The delivery orifice (62) is arranged adjacent to the proximal end of the stem (31) of the rod element (3). The switching mechanism (7, 36) is arranged for changing the medical delivery device (1) from a dosing status to a delivery status. In the dosing status of the medical delivery device (1), the first thread arrangement (35,36) of the rod element (3) and the second thread arrangement (411) of the dial shell (4) engage, the rod element (3) is movable along the longitudinal axis (38) of its stem (31) relative to the delivery orifice (62) by rotating the dial shell (4) around the stem (31) of the rod element (3) causing the first thread arrangement (35, 36) of the rod element (3) and the second thread arrangement (411) of the dial shell (4) to travel along each other, wherein a dosage chamber (611) is formed between the rod element (3) and the delivery orifice (62) when the rod element (3) moves away from the delivery orifice (62), and moving the rod element (3) along the longitudinal axis (38) of its stem (31) by applying an axial force to the rod element (3) is prevented. In the delivery status of the medical delivery device (1), the rod element (3) is movable along the longitudinal axis (38) of its stem (31) relative to the delivery orifice (62) by applying an axial force to the rod element (3), and moving the rod element (3) along the longitudinal axis (38) of its stem (31) by rotating the dial shell (4) around the stem (31) of the rod element (3) is prevented. The medical delivery device (1) according to the invention allows on one hand to precisely dose a liquid, for example from a container (9), and on the other hand for a convenient
