US Patent No: 5,488,959

Number of patents in Portfolio can not be more than 2000

Medical guidewire and welding process

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A process is provided which is particularly suitable for manufacturing medical guidewires. The resulting products have a weld that has good pull strength and is of minimum brittleness even when one of the components being welded together is a fine wire of material that is susceptible to damage and severe deterioration when subjected to harsh heating conditions. The invention is particularly suitable when that material is a Nitinol alloy. The process supports the other component to be welded such as a coil within a collet such that a substantial portion of it projects beyond the collet and is not supported thereby. A heat source renders this projecting portion molten, after which the other component made of Nitinol, for example, is embedded into the molten mass, usually still under the influence of the heat source, to thereby effect a joining which, after cooling, provides the improved weld without imparting brittleness to either component.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
CORDIS CORPORATIONMIAMI LAKES, FL715

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ales, Francisco Hialeah, FL 2 62

Cited Art Landscape

Patent Info (Count) # Cites Year
 
VERSAFLEX DELIVERY SYSTEMS INC. (1)
* 4,813,434 Steerable guidewire with deflectable tip 85 1988
 
CORDIS CORPORATION (1)
* 4,846,186 Flexible guidewire 258 1988
 
EV3 INC. (1)
* 4,984,581 Flexible guide having two-way shape memory alloy 495 1988
 
MEDTRONIC AVE, INC. (1)
* 4,763,647 Dual coil steerable guidewire 172 1987
 
Advanced Cardiovascular Systems, Inc. (4)
* 4,538,622 Guide wire for catheters 351 1983
* 4,619,274 Torsional guide wire with attenuated diameter 160 1985
* RE33911 Catheter guide wire with short spring tip and method of using the same 87 1986
* 4,721,117 Torsionally stabilized guide wire with outer jacket 248 1986
 
NIPPON ZEON CO., LTD. (1)
* 4,969,890 Catheter 518 1988
 
TERUMO KABUSHIKI KAISHA (2)
* 4,925,445 Guide wire for catheter 470 1989
* 5,069,226 Catheter guidewire with pseudo elastic shape memory alloy 321 1990
 
The United States of America as represented by the Secretary of the Navy (1)
* 4,283,233 Method of modifying the transition temperature range of TiNi base shape memory alloys 40 1980
 
MEDTRONIC, INC. (1)
* 4,665,906 Medical devices incorporating sim alloy elements 1528 1986
* Cited By Examiner

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
Other [Check patent profile for assignment information] (1)
* 2002/0019,599 High performance coil wire 57 2001
 
Abbott Cardiovascular Systems Inc. (7)
7,998,090 Guide wire with core having welded wire segments 2 2009
* 2009/0227,902 GUIDE WIRE WITH CORE HAVING WELDED WIRE SEGMENTS 2 2009
* 8,454,537 Guide wire with core having welded wire segments 1 2011
* 2011/0295,155 GUIDE WIRE WITH CORE HAVING WELDED WIRE SEGMENTS 1 2011
9,061,088 Guide wire core wire made from a substantially titanium-free alloy for enhanced guide wire steering response 0 2012
* 2014/0200,555 METHODS FOR COUNTERACTING REBOUNDING EFFECTS DURING SOLID STATE RESISTANCE WELDING OF DISSIMILAR MATERIALS 1 2013
8,721,564 Guide wire with core having welded wire segments 0 2013
 
CORDIS CORPORATION (1)
* 6,039,699 Stiff catheter guidewire with flexible distal portion 98 1996
 
Advanced Cardiovascular Systems, Inc. (1)
* 2006/0047,223 Apparatus and method for joining stainless steel guide wire portion to nitinol portion, without a hypotube 17 2004
 
Bridgepoint Medical, Inc. (2)
8,202,246 Crossing occlusions in blood vessels 5 2009
8,337,425 Endovascular device with a tissue piercing distal probe and associated methods 5 2009
 
EDISON WELDING INSTITUTE (2)
6,875,949 Method of welding titanium and titanium based alloys to ferrous metals 15 2003
* 2004/0182,835 Method of welding titanium and titanium based alloys to ferrous metals 2 2003
 
SCIMED LIFE SYSTEMS, INC. (3)
7,470,239 High performance coil wire 7 2000
* 2006/0235,337 GUIDEWIRE TIP CONSTRUCTION 8 2006
7,946,999 High performance coil wire 4 2008
 
SCIMED SYSTEMS, INC. (2)
8,377,035 Unbalanced reinforcement members for medical device 1 2003
* 2004/0143,239 Unbalanced reinforcement members for medical device 13 2003
 
Neometrics, Inc. (1)
8,308,658 Medical guidewire 0 2007
 
COOK INCORPORATED (5)
* 2005/0209,533 Second wire apparatus and installation procedure 11 2005
7,901,367 Wire guide advancement system 0 2006
* 2007/0010,763 Wire guide advancement system 5 2006
* 2007/0191,790 Wire guide having distal coupling tip 9 2007
* 2010/0318,068 WIRE GUIDE HAVING DISTAL COUPLING TIP FOR ATTACHMENT TO A PREVIOUSLY INTRODUCED WIRE GUIDE 0 2010
 
BAXTER INTERNATIONAL INC. (1)
* 2003/0216,677 Biosensor for dialysis therapy 17 2002
 
MEDTRONIC AVE, INC. (1)
* 5,776,100 Nickel titanium guide wires for occlusion and drug delivery 41 1996
 
WILLIAM COOK EUROPE APS (2)
* 2004/0082,879 Endovascular medical device with plurality of wires 13 2003
* 2006/0100,602 Endovascular medical device with plurality of wires 4 2005
 
COOK, WILLIAM (1)
6,348,041 Guidewire 172 2000
 
BOSTON SCIENTIFIC SCIMED, INC. (34)
* 6,306,105 High performance coil wire 166 1998
7,955,272 High performance coil wire 6 2001
6,832,715 Guidewire distal tip soldering method 62 2001
* 2004/0116,831 Distal protection guidewire with nitinol core 50 2002
7,077,811 Guidewire tip construction 12 2002
* 2004/0122,340 Guidewire tip construction 8 2002
8,113,916 Straightening and centerless grinding of wire for use with medical devices 4 2003
* 2004/0142,643 Straightening and centerless grinding of wire for use with medical devices 27 2003
7,044,921 Medical device with changeable tip flexibility 14 2003
* 2004/0152,941 Medical device with changeable tip flexibility 4 2003
8,167,821 Multiple diameter guidewire 14 2003
7,182,735 Elongated intracorporal medical device 98 2003
7,169,118 Elongate medical device with distal cap 21 2003
* 2004/0167,440 Multiple diameter guidewire 51 2003
* 2004/0167,436 Elongate medical device with distal cap 15 2003
* 2004/0167,439 Guidewire having textured proximal portion 12 2003
* 2004/0167,438 Reinforced medical device 9 2003
7,785,273 Guidewire with reinforcing member 6 2003
* 2005/0065,456 Guidewire with reinforcing member 10 2003
7,237,313 Elongated medical device for intracorporal use 82 2003
* 2005/0124,917 Elongated medical device for intracorporal use 10 2003
7,316,656 Elongated intracorporal medical device 18 2003
* 2004/0167,443 Elongated intracorporal medical device 53 2003
8,222,566 Elongated intracorporal medical device 0 2005
* 2006/0237,407 Medical devices having laser brazed joints 4 2005
* 2007/0083,132 Medical device coil 52 2005
7,998,088 Guidewire tip construction 0 2006
* 8,022,331 Method of making elongated medical devices 0 2007
* 2007/0123,805 ELONGATED INTRACORPORAL MEDICAL DEVICE 46 2007
8,137,292 Elongated medical device for intracorporal use 0 2007
7,841,994 Medical device for crossing an occlusion in a vessel 6 2007
* 2009/0118,644 MEDICAL DEVICE FOR CROSSING AN OCCLUSION IN A VESSEL 2 2007
* 2009/0292,225 MEDICAL DEVICE INCLUDING A BRAID FOR CROSSING AN OCCLUSION IN A VESSEL 1 2008
* 2010/0176,095 METHODS AND DESIGNS FOR FORMING JOINTS BETWEEN METALLIC MEMBERS 0 2009
 
CODMAN & SHURTLEFF, INC. (1)
* 5,733,400 Intravascular catheter 117 1996
 
COOK MEDICAL TECHNOLOGIES LLC (18)
6,254,550 Preformed wire guide 182 1999
6,383,146 Guidewire 141 2000
6,589,227 Endovascular medical device with plurality of wires 60 2001
7,025,758 Endovascular medical device with plurality of wires 26 2003
* 2004/0010,243 Endovascular medical device with plurality of wires 18 2003
8,721,625 Endovascular medical device with plurality of wires 1 2005
9,005,138 Wire guide having distal coupling tip 0 2006
8,075,497 Wire guide having distal coupling tip 2 2006
* 2007/0185,414 Wire guide having distal coupling tip 10 2006
* 2007/0088,328 Wire guide having distal coupling tip 4 2006
8,137,291 Wire guide having distal coupling tip 0 2006
7,758,565 Identifiable wire guide 3 2006
7,731,693 Coupling wire guide 4 2006
7,811,238 Wire guide having distal coupling tip 0 2007
7,798,980 Wire guide having distal coupling tip for attachment to a previously introduced wire guide 3 2007
7,785,275 Wire guide having distal coupling tip 2 2007
* 8,133,190 Weldable wire guide with distal coupling tip 1 2007
* 2007/0299,367 WELDABLE WIRE GUIDE WITH DISTAL COUPLING TIP 2 2007
 
Target Therapeutics, Inc. (2)
* 5,833,631 Fiber tip guidewire 51 1996
* 5,827,201 Micro-braided guidewire 102 1996
 
LAKE REGION MANUFACTURING, INC. DBA LAKE REGION MEDICAL (1)
* 2013/0156,493 METHOD OF JOINING TITANIUM AND TITANIUM-BASED ALLOYS TO FERROUS METALS USING TANTALUM 0 2011
 
BOSTON SCIENTIFIC CORPORATION (2)
* 6,000,601 Welding method 10 1996
* 6,379,392 Welding method 33 2000
* Cited By Examiner