
US Patent No: 7,942,922
Number of patents in Portfolio can not be more than 2000
Stent having helical elements
Stats
-
May 17, 2011
Issued date -
Sep 9, 2010
filing date -
12/878,341
serial no -
In Force
status
Importance
Abstract
An expandable stent comprised of a plurality of helical segments is disclosed. In one embodiment, the stent is generally cylindrical in shape having a cylindrical axis, and comprises a first and second set of helical segments. The helical segments in the first set are substantially parallel and have a first pitch forming a first helical angle with respect to the cylindrical axis. The helical segments in the second set are also generally parallel to each other and form a second pitch that differs from the first pitch, thereby forming a second helical angle with respect to the cylindrical axis. In an alternative embodiment, the stent comprises one set of helical segments and a plurality of circumferential elements that are joined together by the helical segments to form a plurality of cylindrical elements which are joined together to form a stent body. The stent may also have endzones.
First Claim
Related Publications
International Classification(s)
- [Classification Symbol]
- [Patents Count]
Cited Art
| Patent Info | (Count) | # Cites | Year |
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| 6,818,014 Longitudinally flexible expandable stent | 44 | 1995 | |
| 5,843,117 Implantable vascular and endoluminal stents and process of fabricating the same | 152 | 1996 | |
| 6,033,433 Stent configurations including spirals | 148 | 1997 | |
| 5,938,697 Stent having variable properties | 179 | 1998 | |
| 6,264,689 Low profile medical stent | 24 | 1998 | |
| 6,261,319 Stent | 73 | 1998 | |
| 6,348,065 Longitudinally flexible expandable stent | 161 | 1998 | |
| 6,099,561 Vascular and endoluminal stents with improved coatings | 251 | 1998 | |
| 6,042,597 Helical stent design | 175 | 1998 | |
| 7,204,848 Longitudinally flexible expandable stent | 16 | 1998 | |
| 6,350,277 Stents with temporary retaining bands | 124 | 1999 | |
| 6,200,334 Tubular stent consists of non-parallel expansion struts and contralaterally attached diagonal connectors | 84 | 1999 | |
| 6,123,721 Tubular stent consists of chevron-shape expansion struts and ipsilaterally attached M-frame connectors | 111 | 1999 | |
| 6,395,020 Stent cell configurations | 45 | 1999 | |
| 6,319,277 Nested stent | 69 | 1999 | |
| 6,398,805 Balloon expandable stent with low surface friction | 24 | 2000 | |
| 6,981,986 Longitudinally flexible expandable stent | 27 | 2000 | |
| 6,506,211 Stent designs | 67 | 2000 | |
| 6,730,117 Intraluminal stent | 65 | 2000 | |
| 6,776,793 Longitudinally flexible expandable stent | 98 | 2001 | |
| 2001/0056,298 Longitudinally flexible expandable stent | 36 | 2001 | |
| 2002/0095,208 Stent | 51 | 2002 | |
| 2003/0225,448 Polar radiopaque marker for stent | 13 | 2002 | |
| 2007/0073,384 Longitudinally flexible expandable stent | 17 | 2006 | |
| 2008/0065,195 Longitudinally Flexible Expandable Stent | 6 | 2007 | |
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| 5,449,373 Articulated stent | 625 | 1994 | |
| 5,733,303 Flexible expandable stent | 292 | 1995 | |
| 5,980,552 Articulated stent | 174 | 1996 | |
| 5,843,120 Flexible-expandable stent | 205 | 1997 | |
| 5,972,018 Flexible expandable stent | 126 | 1998 | |
| 6,059,811 Articulated stent | 74 | 1998 | |
| 6,461,381 Flexible expandable stent | 44 | 1999 | |
| 6,508,834 Articulated stent | 61 | 2000 | |
| 6,443,982 Flexible expandable stent | 51 | 2000 | |
| 6,635,084 Flexible expandable stent | 24 | 2001 | |
| 6,589,276 Articulated stent | 48 | 2002 | |
| 6,875,228 Articulated stent | 28 | 2003 | |
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| 5,158,548 Method and system for stent delivery | 474 | 1991 | |
| 5,843,164 Intraluminal stent for attaching a graft | 272 | 1996 | |
| 5,725,572 Radiopaque stent | 241 | 1997 | |
| 6,179,867 Flexible stent and method of use | 101 | 1998 | |
| 6,171,334 Expandable stent and method of use | 94 | 1998 | |
| 6,569,193 Tapered self-expanding stent | 87 | 1999 | |
| 6,652,579 Radiopaque stent | 50 | 2000 | |
| 6,254,632 Implantable medical device having protruding surface structures for drug delivery and cover attachment | 391 | 2000 | |
| 6,929,660 Intravascular stent | 39 | 2000 | |
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| 5,102,417 Expandable intraluminal graft, and method and apparatus for implanting an expandable intraluminal graft | 716 | 1988 | |
| 5,304,200 Welded radially expandable endoprosthesis and the like | 286 | 1993 | |
| 5,549,663 Endoprosthesis having graft member and exposed welded end junctions, method and procedure | 204 | 1994 | |
| 5,716,396 Endoprosthesis having multiple laser welded junctions method and procedure | 84 | 1995 | |
| 5,824,043 Endoprosthesis having graft member and exposed welded end junctions, method and procedure | 139 | 1996 | |
| 5,913,897 Endoprosthesis having multiple bridging junctions and procedure | 86 | 1997 | |
| 6,190,403 Low profile radiopaque stent with increased longitudinal flexibility and radial rigidity | 170 | 1998 | |
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| 5,133,732 Intravascular stent | 654 | 1989 | |
| 6,136,023 Welded sinusoidal wave stent | 36 | 1998 | |
| 6,355,057 Staggered endoluminal stent | 27 | 1999 | |
| 6,730,116 Medical device for intraluminal endovascular stenting | 83 | 1999 | |
| 6,331,189 Flexible medical stent | 78 | 1999 | |
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| 5,527,354 Stent formed of half-round wire | 272 | 1994 | |
| 5,591,230 Radially expandable stent | 66 | 1995 | |
| 5,741,327 Surgical stent featuring radiopaque markers | 234 | 1997 | |
| 5,843,175 Enhanced flexibility surgical stent | 167 | 1997 | |
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| 6,551,350 Kink resistant bifurcated prosthesis | 70 | 1996 | |
| 5,925,061 Low profile vascular stent | 122 | 1997 | |
| 6,331,188 Exterior supported self-expanding stent-graft | 47 | 1997 | |
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| 6,682,554 Methods and apparatus for a stent having an expandable web structure | 31 | 2000 | |
| 6,533,809 Stent | 7 | 2001 | |
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| 5,935,161 Non-migrating vascular prosthesis and minimally invasive placement system therefor | 125 | 1997 | |
| 6,579,314 Covered stent with encapsulated ends | 66 | 1999 | |
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| 5,800,521 Prosthetic graft and method for aneurysm repair | 76 | 1996 | |
| 2005/0049,687 Flexible, stretchable coiled-sheet stent | 6 | 2004 | |
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| 6,270,524 Flexible, radially expansible luminal prostheses | 116 | 1998 | |
| 6,485,508 Low profile stent | 46 | 2000 | |
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| 5,354,308 Metal wire stent | 313 | 1992 | |
| 5,902,317 Stent and method and apparatus for forming and delivering the same | 135 | 1997 | |
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| 6,432,132 Expandable intraluminal endoprosthesis | 53 | 2000 | |
| 6,821,292 Crimpable intraluminal endoprosthesis having helical elements | 68 | 2002 | |
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| 6,132,460 Stent | 97 | 1998 | |
| 6,132,461 Stent with dual support structure | 93 | 1998 | |
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| 6,013,854 Indwelling stent and the method for manufacturing the same | 100 | 1995 | |
| 6,200,337 Implanting stent | 63 | 1998 | |
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| 5,514,154 Expandable stents | 566 | 1994 | |
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| 5,356,423 Resectable self-expanding stent | 253 | 1993 | |
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| 5,860,999 Stent and method of using same | 128 | 1997 | |
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| 6,124,523 Encapsulated stent | 158 | 1995 | |
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| 5,911,754 Flexible stent with effective strut and connector patterns | 148 | 1998 | |
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| 5,545,210 Method of implanting a permanent shape memory alloy stent | 266 | 1994 | |
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| 6,309,414 Angioplasty stents | 125 | 1997 | |
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| 5,226,913 Method of making a radially expandable prosthesis | 318 | 1992 | |
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| 5,895,406 Axially flexible stent | 104 | 1996 | |
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| 6,083,259 Axially non-contracting flexible radially expandable stent | 59 | 1998 | |
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| 6,106,548 Non-foreshortening intraluminal prosthesis | 170 | 1998 | |
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| 6,245,101 Intravascular hinge stent | 77 | 1999 | |
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| 6,241,762 Expandable medical device with ductile hinges | 197 | 1998 | |
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| 5,776,161 Medical stents, apparatus and method for making same | 317 | 1995 | |
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| 5,630,829 High hoop strength intraluminal stent | 147 | 1994 | |
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| 5,697,971 Multi-cell stent with cells having differing characteristics | 420 | 1996 | |
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| 6,238,409 Articulated expandable intraluminal stent | 24 | 1999 | |
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| 6,231,598 Radially expandable stent | 239 | 1998 | |
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| 5,824,040 Endoluminal prostheses and therapies for highly variable body lumens | 277 | 1996 | |
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| 6,254,628 Intracranial stent | 141 | 1996 | |
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| 5,964,798 Stent having high radial strength | 105 | 1997 | |
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| 6,129,755 Intravascular stent having an improved strut configuration | 177 | 1998 | |
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| 5,217,483 Intravascular radially expandable stent | 222 | 1992 | |
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| 6,962,203 One trip completion process | 28 | 2003 | |
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| 6,019,789 Expandable unit cell and intraluminal stent | 174 | 1998 | |
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| 6,017,365 Coronary stent | 165 | 1998 | |
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| 5,507,767 Spiral stent | 424 | 1992 | |
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| 4,464,722 Data input or output apparatus incorporating functional testing | 7 | 1981 | |
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| 5,810,872 Flexible stent | 150 | 1997 | |
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| 5,755,781 Embodiments of multiple interconnected stents | 231 | 1997 | |
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| 6,974,475 Angioplasty stent | 38 | 1987 | |
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| 6,610,086 Radially expandable stent IV | 19 | 1999 | |
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| 5,755,776 Permanent expandable intraluminal tubular stent | 133 | 1996 | |
| 6,203,569 Flexible stent | 151 | 1997 | |
| 6,053,940 Vascular stent | 96 | 1997 | |
| 6,340,366 Stent with nested or overlapping rings | 86 | 1998 | |
| 6,736,844 Helical stent and method for making same | 36 | 1999 | |
Patent Citation Ranking
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 3.5 Year Payment | $1600.00 | $800.00 | $400.00 | Nov 17, 2014 |
| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Nov 17, 2018 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Nov 17, 2022 |
| Fee | Large entity fee | small entity fee | micro entity fee |
|---|---|---|---|
| Surcharge - 3.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
| Surcharge - 7.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
| Surcharge - 11.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
| Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
| Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |