05931814 is referenced by 484 patents and cites 8 patents.

An improved injection device has a casing containing an active substance reservoir, a cannula communicating with the reservoir, a device for inserting the cannula, and pump means for discharging the reservoir contents through the cannula. The cannula 11 is fixed relative to the casing and projects beyond the underside of the casing to the depth required for injection. The cannula is surrounded by a protective element which is moved by a spring drive from a first end position in which the protective device projects beyond the underside of the casing and beyond the cannula to a second end position in which the protective device does not project beyond the underside of the casing.

Title
Dermally affixed injection device
Application Number
542760
Publication Number
5931814
Application Date
May 12, 1997
Publication Date
August 3, 1999
Inventor
Hansjorg Tschirky
Ettingen
CH
Paul Hadvary
Biel-Benken
CH
Rainer Alex
Bad Krozingen
DE
Agent
John P Parise
William H Epstein
George W Johnston
Assignee
Hoffmann La Roche
NJ, US
IPC
A61M 5/14
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