EP 2675497 A1 20131225 - MONITORING OPERATION OF A POWER INJECTOR VIA MOTOR CURRENT MEASUREMENT
Title (en)
MONITORING OPERATION OF A POWER INJECTOR VIA MOTOR CURRENT MEASUREMENT
Title (de)
ÜBERWACHUNG DES BETRIEBS EINES LEISTUNGSINJEKTORS MITTELS MOTORSTROMMESSUNG
Title (fr)
OPÉRATION DE SURVEILLANCE D'UN INJECTEUR MOTORISÉ VIA UNE MESURE DE COURANT MOTEUR
Publication
Application
Priority
- US 201113115719 A 20110525
- US 201161443030 P 20110215
- US 2012024216 W 20120208
Abstract (en)
[origin: US2012204997A1] Embodiments of the present invention monitor resistance to the movement of the ram and detect one or more injector operation conditions based on that resistance. Some embodiments automatically detect whether a syringe is present in each syringe chamber of an injector based on ram movement resistance so that subsequent steps in the inject process can be automatically initiated or delayed based on the presence or absence of the syringe(s). Other injector operation conditions that can be detected include the injector's syringe sleeve being misaligned for operation, the syringe's wiper being misaligned within the syringe barrel, an occlusion within the syringe, overpressure during injection, and so on. A common way to measure resistance of the ram's movement is how much current is required by the motor driving the ram.
IPC 8 full level
A61M 5/00 (2006.01); A61M 5/145 (2006.01); A61M 5/31 (2006.01)
CPC (source: EP US)
A61M 5/007 (2013.01 - EP US); A61M 5/14546 (2013.01 - EP US); A61M 2005/3114 (2013.01 - EP US); A61M 2205/14 (2013.01 - EP US)
Citation (search report)
See references of WO 2012112347A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
US 2012204997 A1 20120816; CN 103379928 A 20131030; EP 2675497 A1 20131225; JP 2014510575 A 20140501; WO 2012112347 A1 20120823
DOCDB simple family (application)
US 201113115719 A 20110525; CN 201280008976 A 20120208; EP 12704602 A 20120208; JP 2013554480 A 20120208; US 2012024216 W 20120208