EP 0022776 A4 19810617 - SELF-CONTAINED INJECTION SYSTEM.
Title (en)
SELF-CONTAINED INJECTION SYSTEM.
Title (de)
UNABHÄNGIGES INJEKTIONSSYSTEM.
Title (fr)
SYSTEME D'INJECTION AUTONOME.
Publication
Application
Priority
- EP 79901050 A 19800729
- US 7900013 W 19790112
Abstract (en)
[origin: WO8001459A1] Method of and apparatus for injecting fluid into a patient from a chamber (148) carrying the fluid with an outlet (175) connecting the fluid to the patient and with a piston (146) in the chamber movable toward the outlet to force the fluid into the patient using a driving means (20) to move the piston only a prescribed distance toward the outlet each time the driving means is operated regardless of the length of time the driving means is operated by alternately operating and stopping the operation of the driving means to cause the fluid to be injected at the average prescribed rate over the sum of the times the driving means is operated and not operated so that, in the event of a malfunction which continuously operates the driving means, the piston will be moved only the prescribed distance toward the outlet to prevent overdosing the patient. Also disclosed is a subcutaneous injection needle assembly (610).
IPC 1-7
IPC 8 full level
A61M 5/145 (2006.01); A61M 5/142 (2006.01); A61M 5/20 (2006.01)
CPC (source: EP)
A61M 5/14244 (2013.01)
Designated contracting state (EPC)
FR
DOCDB simple family (publication)
WO 8001459 A1 19800724; DE 2953494 A1 19820204; EP 0022776 A1 19810128; EP 0022776 A4 19810617; GB 2050843 A 19810114; GB 2050843 B 19830309; JP S56500119 A 19810212
DOCDB simple family (application)
US 7900013 W 19790112; DE 2953494 T 19790112; EP 79901050 A 19800729; GB 8028796 A 19790112; JP 50139479 A 19790112