Medical guidewire and welding process

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 5488959
SERIAL NO

08173788

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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, FL723

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ales, Francisco Hialeah, FL 2 63

Cited Art Landscape

Patent Info (Count) # Cites Year
 
VERSAFLEX DELIVERY SYSTEMS INC. (1)
* 4813434 Steerable guidewire with deflectable tip 86 1988
 
CORDIS CORPORATION (1)
* 4846186 Flexible guidewire 272 1988
 
EV3 INC. (1)
* 4984581 Flexible guide having two-way shape memory alloy 512 1988
 
MEDTRONIC AVE, INC. (1)
* 4763647 Dual coil steerable guidewire 177 1987
 
Advanced Cardiovascular Systems, Inc. (4)
* 4538622 Guide wire for catheters 356 1983
* 4619274 Torsional guide wire with attenuated diameter 160 1985
* RE33911 Catheter guide wire with short spring tip and method of using the same 87 1986
* 4721117 Torsionally stabilized guide wire with outer jacket 255 1986
 
Nippon Zeon Co., Ltd. (1)
* 4969890 Catheter 536 1988
 
TERUMO KABUSHIKI KAISHA (2)
* 4925445 Guide wire for catheter 481 1989
* 5069226 Catheter guidewire with pseudo elastic shape memory alloy 331 1990
 
The United States of America as represented by the Secretary of the Navy (1)
* 4283233 Method of modifying the transition temperature range of TiNi base shape memory alloys 41 1980
 
MEDTRONIC, INC. (1)
* 4665906 Medical devices incorporating sim alloy elements 1608 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 61 2001
 
Abbott Cardiovascular Systems Inc. (7)
7998090 Guide wire with core having welded wire segments 2 2009
* 2009/0227,902 GUIDE WIRE WITH CORE HAVING WELDED WIRE SEGMENTS 2 2009
* 8454537 Guide wire with core having welded wire segments 1 2011
* 2011/0295,155 GUIDE WIRE WITH CORE HAVING WELDED WIRE SEGMENTS 1 2011
9061088 Guide wire core wire made from a substantially titanium-free alloy for enhanced guide wire steering response 1 2012
* 2014/0200,555 METHODS FOR COUNTERACTING REBOUNDING EFFECTS DURING SOLID STATE RESISTANCE WELDING OF DISSIMILAR MATERIALS 1 2013
8721564 Guide wire with core having welded wire segments 0 2013
 
CORDIS CORPORATION (1)
* 6039699 Stiff catheter guidewire with flexible distal portion 107 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)
8202246 Crossing occlusions in blood vessels 8 2009
8337425 Endovascular device with a tissue piercing distal probe and associated methods 7 2009
 
EDISON WELDING INSTITUTE (3)
6875949 Method of welding titanium and titanium based alloys to ferrous metals 17 2003
* 2004/0182,835 Method of welding titanium and titanium based alloys to ferrous metals 2 2003
* 2005/0142,377 Composite medical device having a titanium or titanium based alloy section and a ferrous metal section 3 2005
 
SCIMED LIFE SYSTEMS, INC. (3)
7470239 High performance coil wire 9 2000
* 2006/0235,337 GUIDEWIRE TIP CONSTRUCTION 8 2006
7946999 High performance coil wire 6 2008
 
SCIMED SYSTEMS, INC. (2)
8377035 Unbalanced reinforcement members for medical device 1 2003
* 2004/0143,239 Unbalanced reinforcement members for medical device 19 2003
 
NEOMETRICS, INC. (1)
8308658 Medical guidewire 0 2007
 
COOK INCORPORATED (5)
* 2005/0209,533 Second wire apparatus and installation procedure 11 2005
7901367 Wire guide advancement system 0 2006
* 2007/0010,763 Wire guide advancement system 6 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 26 2002
 
MEDTRONIC AVE, INC. (1)
* 5776100 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 5 2005
 
COOK, WILLIAM (1)
6348041 Guidewire 184 2000
 
BOSTON SCIENTIFIC SCIMED, INC. (35)
* 6306105 High performance coil wire 188 1998
7955272 High performance coil wire 6 2001
6832715 Guidewire distal tip soldering method 72 2001
* 2004/0116,831 Distal protection guidewire with nitinol core 51 2002
7077811 Guidewire tip construction 12 2002
* 2004/0122,340 Guidewire tip construction 8 2002
8113916 Straightening and centerless grinding of wire for use with medical devices 5 2003
* 2004/0142,643 Straightening and centerless grinding of wire for use with medical devices 28 2003
7044921 Medical device with changeable tip flexibility 14 2003
* 2004/0152,941 Medical device with changeable tip flexibility 6 2003
8167821 Multiple diameter guidewire 20 2003
7182735 Elongated intracorporal medical device 108 2003
7169118 Elongate medical device with distal cap 23 2003
* 2004/0167,440 Multiple diameter guidewire 54 2003
* 2004/0167,436 Elongate medical device with distal cap 16 2003
* 2004/0167,439 Guidewire having textured proximal portion 12 2003
* 2004/0167,438 Reinforced medical device 9 2003
7785273 Guidewire with reinforcing member 6 2003
* 2005/0065,456 Guidewire with reinforcing member 15 2003
7237313 Elongated medical device for intracorporal use 100 2003
* 2005/0124,917 Elongated medical device for intracorporal use 10 2003
7316656 Elongated intracorporal medical device 24 2003
* 2004/0167,443 Elongated intracorporal medical device 59 2003
8222566 Elongated intracorporal medical device 2 2005
* 2006/0237,407 Medical devices having laser brazed joints 4 2005
* 2007/0083,132 Medical device coil 54 2005
7998088 Guidewire tip construction 0 2006
* 8022331 Method of making elongated medical devices 1 2007
* 2007/0114,211 ELONGATED MEDICAL DEVICE WITH DISTAL CAP 3 2007
* 2007/0123,805 ELONGATED INTRACORPORAL MEDICAL DEVICE 62 2007
8137292 Elongated medical device for intracorporal use 2 2007
7841994 Medical device for crossing an occlusion in a vessel 7 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)
* 5733400 Intravascular catheter 121 1996
 
COOK MEDICAL TECHNOLOGIES LLC (18)
6254550 Preformed wire guide 195 1999
6383146 Guidewire 152 2000
6589227 Endovascular medical device with plurality of wires 65 2001
7025758 Endovascular medical device with plurality of wires 29 2003
* 2004/0010,243 Endovascular medical device with plurality of wires 19 2003
8721625 Endovascular medical device with plurality of wires 2 2005
9005138 Wire guide having distal coupling tip 0 2006
8075497 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
8137291 Wire guide having distal coupling tip 1 2006
7758565 Identifiable wire guide 5 2006
7731693 Coupling wire guide 8 2006
7811238 Wire guide having distal coupling tip 1 2007
7798980 Wire guide having distal coupling tip for attachment to a previously introduced wire guide 3 2007
7785275 Wire guide having distal coupling tip 4 2007
* 8133190 Weldable wire guide with distal coupling tip 1 2007
* 2007/0299,367 WELDABLE WIRE GUIDE WITH DISTAL COUPLING TIP 3 2007
 
TARGET THERAPEUTICS, INC. (2)
* 5833631 Fiber tip guidewire 52 1996
* 5827201 Micro-braided guidewire 109 1996
 
LAKE REGION MANUFACTURING, INC. (2)
* 9399262 Method of joining titanium and titanium-based alloys to ferrous metals using tantalum 0 2011
* 2013/0156,493 METHOD OF JOINING TITANIUM AND TITANIUM-BASED ALLOYS TO FERROUS METALS USING TANTALUM 0 2011
 
BOSTON SCIENTIFIC CORPORATION (2)
* 6000601 Welding method 12 1996
* 6379392 Welding method 37 2000
* Cited By Examiner