EP 1971254 A1 20080924 - TITANIUM MOLYBDENUM ALLOY GUIDEWIRES
Title (en)
TITANIUM MOLYBDENUM ALLOY GUIDEWIRES
Title (de)
FÜHRUNGSDRÄHTE AUS TITAN-MOLYBDÄN-LEGIERUNGEN
Title (fr)
FILS DE GUIDAGE D ALLIAGE DE MOLYBDÈNE TITANE
Publication
Application
Priority
US 2006001036 W 20060112
Abstract (en)
[origin: WO2007081333A1] A guidewire for medical use such as in vascular and nonvascular systems. The guidewire made from a titanium molybdenum alloy wire with a composition of approximately 78% titanium 11.5% molybdenum 6% zirconium and 4.5% tin by weight such that it is softer than stainless steel guidewires and stiffer than NiTi alloy guidewires. The distal end of the guidewire is of a smaller diameter and softer than the proximal end and fitted with a coil for springiness such that the distal end will bend when encountering curves in the body passageways. The distal tip may be heat treated for a gradient of softness with the distal tip being the softest. The distal end may also be tapered to provide an additional gradient of softness. A distal tip on the distal end of the guidewire protects the wall of the passageway from being punctured as the guidewire travels through the passageway. The resulting guidewire has properties between those of stainless steel guidewires and NiTi alloy guidewires for better torsion and stiffness characteristics.
IPC 8 full level
A61B 5/00 (2006.01); A61L 31/02 (2006.01); A61L 31/10 (2006.01); A61M 25/00 (2006.01)
CPC (source: EP)
A61L 31/022 (2013.01); A61L 31/10 (2013.01); A61M 25/09 (2013.01); A61M 2025/09083 (2013.01); A61M 2025/09133 (2013.01)
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 NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2007081333 A1 20070719; AU 2006335336 A1 20070719; CA 2636266 A1 20070719; CN 101360448 A 20090204; EA 013583 B1 20100630; EA 200801675 A1 20081230; EP 1971254 A1 20080924; EP 1971254 A4 20100811; JP 2009523481 A 20090625
DOCDB simple family (application)
US 2006001036 W 20060112; AU 2006335336 A 20060112; CA 2636266 A 20060112; CN 200680051052 A 20060112; EA 200801675 A 20060112; EP 06718147 A 20060112; JP 2008550276 A 20060112