EP 2021062 A2 20090211 - CONTROLLED STIFFNESS GUIDEWIRE UNIT
Title (en)
CONTROLLED STIFFNESS GUIDEWIRE UNIT
Title (de)
GESTEUERT VERSTEIFBARE FÜHRUNGSDRAHTEINHEIT
Title (fr)
ENSEMBLE FIL DE GUIDAGE POUVANT ÊTRE RENFORCÉ DE MANIÈRE RÉGLÉE
Publication
Application
Priority
- EP 2007004301 W 20070515
- DE 102006024094 A 20060517
Abstract (en)
[origin: WO2007131766A2] The invention relates to a guidewire unit comprising a section (V) which can be stiffened in a manner controlled by a pressure medium, said section having a pressure channel for the controlled production of a stiffening pressure by introducing a pressure medium (11) and flexible stiffening elements that are forced one against the other in a manner increasing the stiffening effect when subjected to a pressure load by the effect of the stiffening pressure. The guidewire unit according to the invention comprises flexible stiffening elements which have an inner stiffening tube part and a radially less flexible outer stiffening tube part surrounding the same. Under the effect of the stiffening pressure, the inner stiffening tube part is forced against the interior of the outer stiffening tube part, thereby increasing the stiffening effect. According to the invention, a distal end section can be mounted distally and/or a stiff section can be mounted proximally in front of the controlled stiffness section. A center guidewire core may extend in the controlled stiffness section. The guidewires according to the invention can be used as e.g. guidewires for positioning medical catheters.
IPC 8 full level
A61M 25/09 (2006.01)
CPC (source: EP US)
A61M 25/09 (2013.01 - EP US); A61M 2025/0915 (2013.01 - EP US)
Citation (search report)
See references of WO 2007131766A2
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA HR MK RS
DOCDB simple family (publication)
DE 102006024094 A1 20071122; EP 2021062 A2 20090211; US 2009187163 A1 20090723; WO 2007131766 A2 20071122; WO 2007131766 A3 20080710
DOCDB simple family (application)
DE 102006024094 A 20060517; EP 07764532 A 20070515; EP 2007004301 W 20070515; US 30061507 A 20070515