Invention Application
- Patent Title: Pen shaped medication injection devices
- Patent Title (中): 笔形药物注射装置
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Application No.: US11320809Application Date: 2005-12-30
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Publication No.: US20060184117A1Publication Date: 2006-08-17
- Inventor: Barry Knight , Stephen Knowles , Venkitraman Srinivas , Ramesh Sesha
- Applicant: Barry Knight , Stephen Knowles , Venkitraman Srinivas , Ramesh Sesha
- Main IPC: A61M5/20
- IPC: A61M5/20
Abstract:
The present invention provides a delivery device comprising a fluid cartridge holder, housing and a piston drive mechanism that comprises a hollow piston rod and a drive-shaft. The hollow piston rod has an internal thread that mates with the external thread of the drive-shaft, forming a thread connection and being axially restrained in the proximal direction relative to the housing. The drive mechanism is in turn connected to the housing via a one way ratchet such that the piston rod is prevented from moving in the proximal direction.
Public/Granted literature
- US07771398B2 Pen shaped medication injection devices Public/Granted day:2010-08-10
Information query
IPC分类:
