Robert Frederick Veasey,Robert Perkins,David Aubrey Plumptre
申请号：
US16385682
公开号：
US20190240412A1
申请日:
2019.04.16
申请国别(地区):
US
年份:
2019
代理人:
摘要：
The present invention relates to injectors, such as pen-type injectors, that provide for administration of medicinal products from a multidose-cartridge and permit a user to set the delivery dose. The injector may include a housing, a piston rod adapted to operate through the housing, a dose dial sleeve located between the housing and the piston rod, and a drive sleeve located between the dose dial sleeve and the piston rod. The dose dial sleeve may have a helical thread of first lead and the drive sleeve may have a helical groove of second lead. The first lead of the helical thread and the second lead of the helical groove may be the same.
