US Patent No: 5,059,205

Number of patents in Portfolio can not be more than 2000

Percutaneous anti-migration vena cava filter

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ATTORNEY / AGENT: (SPONSORED)
 

Importance

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Abstract

A filter device positionable within a blood vessel for trapping blood clots in that vessel, the filter device comprising a head with a plurality of divergent legs each secured at its proximal end, to the head, each leg having a hook arranged at its distal end. The distal end includes a reversely bent portion of the leg which itself is bent radially outwardly, ending in the shape of a sharp point. The reversely bent portion of the leg comprises a pad to minimize the depth of penetration of the hook. A further embodiment of the leg shows a radially outwardly directed radius of curvature to create a conical configuration to the filter assembly, while distributing the stress concentration along the length of the bend, so that the elastic limit of the material, stainless steel in this embodiment, is not exceeded, and which permits compact delivery of the filter, and adequate radially directed force to permit slight hook penetration of a vessel wall.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
LIFESCREEN SCIENCES LLCFRISCO, TX56

International Classification(s)

  • [Classification Symbol]
  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
El-Nounou, Fozan O Santa Clara, CA 15 368
Kordis, Thomas F Sunnyvale, CA 72 3919
Sahatjian, Ronald A Lexington, MA 95 3257
Savin, Michael A Norwood, MA 3 894
Weinreich, Michael 39 Oneida Rd., Acton, MA 01720 3 334

Cited Art

Patent Info (Count) # Cites Year
 
BOSTON SCIENTIFIC SCIMED, INC. (1)
4,817,600 Implantable filter 253 1987
 
L.G. MEDICAL S.A. (1)
4,688,553 Filter, particularly for trapping blood clots 224 1985
 
MICROVENTION, INC. (1)
4,873,978 Device and method for emboli retrieval 607 1987
 
NITINOL MEDICAL TECHNOLOGIES, INC. (1)
4,425,908 Blood clot filter 861 1981
 
OTHER [CHECK PATENT PROFILE FOR ASSIGNMENT INFORMATION] (2)
4,643,184 Embolus trap 365 1984
4,969,891 Removable vascular filter 406 1990

Patent Citation Ranking

Forward Cites

Patent Info (Count) # Cites Year
 
LIFESCREEN SCIENCES LLC (33)
5,370,657 Recoverable thrombosis filter 359 1993
5,626,605 Thrombosis filter 165 1994
5,601,595 Remobable thrombus filter 182 1994
5,709,704 Blood clot filtering 248 1994
5,681,347 Vena cava filter delivery system 181 1995
5,746,767 Removable thrombus filter 150 1997
5,951,585 Vena cava delivery system 114 1997
5,836,969 Vena cava filter 160 1997
6,013,093 Blood clot filtering 191 1997
6,273,900 Blood clot filtering 60 1998
5,984,947 Removable thrombus filter 115 1998
6,126,673 Vena cava filter 96 1998
6,165,179 Vena cava delivery system 74 1999
6,214,025 Self-centering, self-expanding and retrievable vena cava filter 92 1999
6,342,063 Device and method for selectively removing a thrombus filter 60 2000
6,217,600 Thrombus filter with break-away anchor members 44 2000
6,468,290 Two-planar vena cava filter with self-centering capabilities 64 2000
6,391,045 Vena cava filter 50 2000
6,383,193 Vena cava delivery system 31 2000
6,620,183 Thrombus filter with break-away anchor members 16 2001
6,416,530 Device and method for selectively removing a thrombus filter 30 2001
7,799,049 Atraumatic anchoring and disengagement mechanism for permanent implant device 3 2002
8,361,103 Low profile IVC filter 0 2003
7,534,251 Retrievable IVC filter 14 2003
8,273,099 Thrombus filter with break-away anchor members 0 2003
6,972,025 Intravascular filter with bioabsorbable centering element 71 2003
8,231,649 Retrievable blood clot filter with retractable anchoring members 0 2004
8,308,750 Removable intravascular devices and methods of making and using the same 0 2004
8,403,955 Inflatable intravascular filter 0 2004
7,959,645 Retrievable vena cava filter 0 2004
7,998,164 Intravascular filter with centering member 0 2005
7,575,584 Intravascular filter with bioabsorbable centering element 0 2005
8,080,033 Staged release of IVC filter legs 0 2009
 
COOK MEDICAL TECHNOLOGIES LLC (27)
7,763,045 Removable vena cava filter 1 2004
8,105,349 Removable vena cava filter having primary struts for enhanced retrieval and delivery 0 2005
8,043,322 Removable vena cava filter having inwardly positioned anchoring hooks in collapsed configuration 0 2005
7,972,353 Removable vena cava filter with anchoring feature for reduced trauma 2 2005
7,699,867 Removable vena cava filter for reduced trauma in collapsed configuration 6 2005
7,625,390 Removable vena cava filter 7 2005
8,167,901 Removable vena cava filter comprising struts having axial bends 0 2005
8,221,446 Embolic protection device 0 2006
8,109,962 Retrievable device having a reticulation portion with staggered struts 0 2006
7,850,708 Embolic protection device having a reticulated body with staggered struts 4 2006
7,771,452 Embolic protection device with a filter bag that disengages from a basket 1 2006
7,766,934 Embolic protection device with an integral basket and bag 10 2006
8,187,298 Embolic protection device having inflatable frame 0 2006
8,377,092 Embolic protection device 0 2006
8,182,508 Embolic protection device 0 2006
8,252,017 Invertible filter for embolic protection 0 2006
8,216,269 Embolic protection device having reduced profile 0 2006
8,152,831 Foam embolic protection device 0 2006
8,419,748 Helical thrombus removal device 0 2007
8,252,018 Helical embolic protection device 0 2007
8,246,648 Removable vena cava filter with improved leg 0 2008
8,246,672 Endovascular graft with separately positionable and removable frame units 0 2008
8,388,644 Embolic protection device and method of use 0 2008
8,192,461 Methods for facilitating closure of a bodily opening using one or more tacking devices 0 2009
7,867,247 Methods for embolic protection during treatment of a stenotic lesion in a body vessel 0 2010
8,246,650 Removable vena cava filter 0 2010
8,246,651 Removable vena cava filter for reduced trauma in collapsed configuration 0 2010
 
EV3 INC. (24)
6,605,102 Intravascular trap and method of trapping particles in bodily fluids 184 1996
6,231,589 Body vessel filter 120 1999
6,706,054 Body vessel filter 19 2000
6,949,103 Method and device for filtering body fluid 49 2002
7,048,752 Method and device for filtering body fluid 49 2002
7,033,375 Method and device for filtering body fluid 49 2002
6,989,019 Method and device for filtering body fluid 35 2002
6,712,835 Method and device for filtering body fluid 104 2002
7,566,338 Method and device for filtering body fluid 2 2003
7,556,635 Method and device for filtering body fluid 2 2004
7,678,130 Method and device for filtering body fluid 2 2004
7,404,820 Method and device for filtering body fluid 2 2005
7,828,815 Method and device for filtering body fluid 1 2005
7,686,815 Method and device for filtering body fluid 2 2005
7,572,273 Method and device for filtering body fluid 3 2005
7,556,636 Method and device for filtering body fluid 3 2005
7,442,200 Method of forming medical devices: intravascular occlusion devices 4 2005
7,410,492 Method and device for filtering body fluid 2 2005
7,371,250 Method and device for filtering body fluid 3 2005
7,367,985 Method and device for filtering body fluid 4 2005
7,367,986 Method and device for filtering body fluid 2 2005
7,828,816 Method and device for filtering body fluid 1 2007
7,670,355 Method and device for filtering body fluid 2 2007
7,670,356 Method and device for filtering body fluid 2 2007
 
REX MEDICAL, L.P. (18)
6,793,665 Multiple access vein filter 27 2001
6,623,506 Vein filter 35 2001
6,783,538 Removable vein filter 32 2001
8,282,668 Vein filter 0 2003
7,179,275 Vein filter 7 2003
7,338,512 Vein filter 21 2004
7,704,266 Vein filter 5 2004
7,887,561 Multiple access vein filter 0 2004
7,909,847 Vein filter 0 2005
7,749,246 Vein filter 5 2005
7,976,562 Method of removing a vein filter 0 2007
8,211,140 Vein filter 0 2007
8,062,326 Vein filter 0 2007
8,366,736 Vein filter 0 2007
7,992,565 Fallopian tube occlusion device 0 2008
8,162,972 Vein filter 0 2010
8,100,936 Vein filter 1 2010
8,377,093 Method of removing a vein filter 0 2011
 
C.R. BARD, INC. (15)
5,860,998 Deployment device for tubular expandable prosthesis 96 1996
5,843,167 Method and apparatus for recapture of hooked endoprosthesis 169 1997
5,961,546 Method and apparatus for recapture of hooked endoprosthesis 94 1997
6,267,772 Implantable prosthesis 156 1999
6,214,020 Implantable prosthesis and method and apparatus for loading and delivering an implantable prosthesis 70 1999
7,314,477 Removable embolus blood clot filter and filter delivery unit 10 2000
7,704,267 Non-entangling vena cava filter 6 2004
7,794,473 Filter delivery system 1 2004
8,267,954 Vascular filter with sensing capability 0 2005
8,025,668 Medical device removal system 0 2005
8,133,251 Removeable embolus blood clot filter and filter delivery unit 2 2005
8,062,327 Embolus blood clot filter and delivery system 2 2006
7,967,838 Removable embolus blood clot filter 2 2006
8,372,109 Non-entangling vena cava filter 0 2010
8,430,903 Embolus blood clot filter and delivery system 0 2011
 
BARD ASDI INC. (9)
5,634,931 Hernia mesh patches and methods of their use 135 1994
5,769,864 Hernia mesh patch 120 1996
5,916,225 Hernia mesh patch 124 1998
6,290,708 Hernia mesh patch with seal stiffener 25 1999
6,280,453 Hernia mesh patch with stiffener line segment 98 1999
6,171,318 Hernia mesh patch with stiffening layer 39 1999
6,176,863 Hernia mesh patch with I-shaped filament 41 1999
6,224,616 Hernia mesh patch 41 1999
6,174,320 Hernia mesh patch with slit 27 1999
 
BOSTON SCIENTIFIC SCIMED, INC. (8)
5,658,296 Method for making surgical retrieval baskets 252 1994
6,273,901 Thrombosis filter having a surface treatment 156 1999
6,540,767 Recoilable thrombosis filtering device and method 133 2000
6,589,266 Thrombosis filter having a surface treatment 47 2001
6,872,217 Recoilable thrombosis filtering device and method 13 2003
6,902,572 Anchoring mechanisms for intravascular devices 21 2003
8,398,702 Molybdenum endoprostheses 0 2007
7,604,662 Endoprostheses containing boride intermetallic phases 0 2007
 
ICON MEDICAL CORP. (8)
7,452,501 Metal alloy for a stent 0 2005
7,452,502 Metal alloy for a stent 0 2005
7,488,444 Metal alloys for medical devices 1 2006
7,540,994 Process for forming an improved metal alloy stent 0 2006
7,540,995 Process for forming an improved metal alloy stent 1 2006
7,648,591 Metal alloys for medical devices 0 2008
7,648,592 Metal alloy for a stent 0 2008
8,398,916 Method for forming a tubular medical device 0 2010
 
AGA MEDICAL CORPORATION (6)
6,123,715 Method of forming medical devices; intravascular occlusion devices 157 1994
6,168,622 Method and apparatus for occluding aneurysms 62 1998
6,368,339 Method of forming medical devices: intra-vascular occlusion devices 75 2000
6,447,531 Method of forming medical devices; intravascular occlusion devices 107 2000
6,599,308 Intravascular occlusion devices 84 2002
6,682,546 Intravascular occlusion devices 89 2002
 
B. BRAUN CELSA (6)
5,344,427 Filter with triangular fingers 107 1993
5,383,887 Device for selectively forming a temporary blood filter 356 1993
5,725,550 Filtration unit for retaining blood clots 116 1996
5,853,420 Assembly comprising a blood filter for temporary or definitive use and device for implanting it, corresponding filter and method of implanting such a filter 107 1997
5,968,071 Blood filtering device having improved permeability 145 1997
6,193,739 Assembly comprising a blood filter for temporary or definitive use and a device for implanting it, corresponding filter and method of implanting such a filter 68 1998
 
CARDEON CORPORATION (5)
6,139,517 Perfusion shunt apparatus and method 38 1998
6,210,363 Methods and devices for occluding a vessel and performing differential perfusion 8 1999
6,508,777 Circulatory support system and method of use for isolated segmental perfusion 53 1999
6,726,651 Method and apparatus for differentially perfusing a patient during cardiopulmonary bypass 15 1999
6,254,563 Perfusion shunt apparatus and method 65 2000
 
ETHICON, INC. (4)
6,755,867 Hernia repair prosthesis and method 7 2000
6,551,356 Pocketed hernia repair 72 2001
6,712,859 Hernia repair prosthesis and methods for making same 3 2001
6,755,868 Hernia repair device 10 2002
 
RENAMED BIOLOGICS, INC. (4)
5,704,910 Implantable device and use therefor 87 1995
5,911,704 Implantable device and uses therefor 74 1997
6,572,605 Implantable device and use therefor 20 2000
6,716,208 Implantable device and use therefor 27 2000
 
TOPERA, INC. (4)
8,364,234 Basket style cardiac mapping catheter having spline bends for detection of cardiac rhythm disorders 0 2012
8,364,235 Basket style cardiac mapping catheter having an atraumatic basket tip for detection of cardiac rhythm disorders 0 2012
8,364,236 Flexible electrode assembly for insertion into body lumen or organ 0 2012
8,346,339 Basket style cardiac mapping catheter having a flexible electrode assembly for detection of cardiac rhythm disorders 0 2012
 
ANGIOGUARD, INC. (3)
6,755,846 Vascular filter 53 1998
7,229,462 Vascular filter system for carotid endarterectomy 5 2002
7,229,463 Vascular filter system for cardiopulmonary bypass 3 2002
 
CORDIS CORPORATION (3)
6,958,074 Releasable and retrievable vascular filter system 60 2002
6,991,641 Low profile vascular filter system 49 2002
7,399,308 Vascular filter system 4 2002
 
DAVOL, INC. (3)
7,101,381 Implantable prosthesis 11 2002
7,785,334 Implantable prosthesis 1 2006
7,806,905 Implantable prosthesis 1 2009
 
EP TECHNOLOGIES, INC. (3)
6,216,044 Medical device with three dimensional collapsible basket structure 46 1998
6,460,545 Medical device with three dimensional collapsible basket structure 28 2001
6,805,131 Medical device with three dimensional collapsible basket structure 26 2002
 
BOSTON SCIENTIFIC CORPORATION (2)
5,792,145 Surgical retrieval baskets 92 1996
6,231,581 Implantable device anchors 55 1998
 
MEDTRONIC VASCULAR, INC. (2)
8,048,042 Medical articles incorporating surface capillary fiber 0 2004
8,123,775 Embolism protection devices 0 2004
 
MEDTRONIC, INC. (2)
7,879,062 Fiber based embolism protection device 1 2004
7,879,067 Fiber based embolism protection device 0 2007
 
NITINOL DEVICES AND COMPONENTS, INC. (2)
8,409,239 Medical device anchor and delivery system 0 2009
8,398,672 Method for anchoring a medical device 0 2010
 
TYCO HEALTHCARE GROUP LP (2)
7,947,060 Method and device for filtering body fluid 1 2007
7,922,732 Method and device for filtering body fluid 2 2007
 
W. L. GORE & ASSOCIATES, INC. (2)
6,080,178 Vena cava filter 75 1999
6,436,120 Vena cava filter 81 2000
 
WILLIAM COOK EUROPE A/S (2)
5,324,304 Introduction catheter set for a collapsible self-expandable implant 313 1992
5,683,411 Medical article for implantation into the vascular system of a patient 127 1995
 
B. BRAUN MEDICAL (1)
6,267,776 Vena cava filter and method for treating pulmonary embolism 180 1999
 
BENTEX TRADING S.A. (1)
5,938,683 Endovascular filter with flat fixing branches 39 1997
 
CELSA, B. BRAUN (1)
5,634,942 Assembly comprising a blood filter for temporary or definitive use and a device for implanting it 225 1995
 
ICON INTERNATIONAL SYSTEMS, INC. (1)
7,648,590 Metal alloy for a stent 0 2008
 
INNOVATIVE BIOTHERAPIES, INC. (1)
8,048,419 Extracorporeal cell-based therapeutic device and delivery system 0 2007
 
MED CITY MEDICAL INNOVATIONS, INC. (1)
7,303,575 Embolism protection devices 6 2003
 
NEW YORK SOCIETY FOR THE RUPTURED AND CRIPPLED MAINTAINING THE HOSPITAL FOR SPECIAL SURGERY (1)
5,549,626 Vena caval filter 494 1994
 
SCIMED LIFE SYSTEMS, INC. (1)
6,447,530 Atraumatic anchoring and disengagement mechanism for permanent implant device 168 1997
 
SURGERX MEDICAL, LLC (1)
6,361,545 Perfusion filter catheter 205 1998
 
UNIVERSITY OF IOWA RESEARCH FOUNDATION (1)
5,893,869 Retrievable inferior vena cava filter system and method for use thereof 91 1997
 
OTHER [CHECK PATENT PROFILE FOR ASSIGNMENT INFORMATION] (3)
6,224,615 Hernia mesh patch with seal stiffener 1999
6,517,559 Blood filter and method for treating vascular disease 154 2000
8,444,666 Retrievable filter 0 2003