Patent · US Active

Injection device

US8747367B2 · kind B2 · utility

20Cited by

34References

28Claims

0Family size

Assignee

HASELMEIER AG · CH

Inventors

Joachim Keitel · Eßlingen, DE
Jochen Gabriel · Stuttgart, DE

Key dates

Filing date	Jul 28, 2004
Grant date	Jun 10, 2014
Priority date	—
Expiry date	Jun 11, 2026

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61M2205/582
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

An injection apparatus has a barrel (50) that is adapted to receive a container (108) with injection fluid (110). It further comprises a piston rod (98), provided with a thread (100), for expelling injection fluid (110) from such a container (108), which piston rod (98) is guided relative to the barrel (50) in the axial direction (112, 114). Additionally provided is a threaded part (122) whose thread (120) is in engagement with the thread (100) of the piston rod (98), which threaded part (122) is rotatable relative to the piston rod (98) and relative to the barrel (50) in order to set an injection dose, and, during an injection operation, is prevented from rotating relative to the piston rod (98).

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.