
US Patent No: 6,764,505
Number of patents in Portfolio can not be more than 2000
Variable surface area stent
Stats
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Jul 20, 2004
Issued date -
Apr 12, 2001
filing date -
09/834,012
serial no -
In Force
status
Importance
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Abstract
A stent of variable surface area as determined by stent struts. The stent can have a variable surface area per unit length which accommodates a therapeutic agent. A patterned distribution of therapeutic agent can be provided throughout the stent. The stent can have an increased level of therapeutic agent near an end of the stent. A decreased level of therapeutic agent can be provided near an end of one embodiment of a stent. Indentations can be provided at the surface of the stent with therapeutic agent disposed therein. The stent can be cut with struts of variable thickness to provide the variable stent surface area.
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First Claim
Related Publications
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International Classification(s)
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Cited Art
| Patent Info | (Count) | # Cites | Year |
|---|---|---|---|
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| 4,886,062 Intravascular radially expandable stent and method of implant | 1153 | 1987 | |
| 5,278,200 Thromboresistant material and articles | 52 | 1992 | |
| 5,344,455 Graft polymer articles having bioactive surfaces | 65 | 1992 | |
| 5,229,172 Modification of polymeric surface by graft polymerization | 143 | 1993 | |
| 5,308,641 Biocompatibility of solid surfaces | 89 | 1993 | |
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| 5,415,938 Biocompatability of solid surfaces | 63 | 1994 | |
| 5,429,618 Thromboresistant articles | 62 | 1994 | |
| 5,476,509 Articles having graft polymer bioactive surfaces | 48 | 1994 | |
| 5,571,166 Method of making an intraluminal stent | 161 | 1994 | |
| 5,591,224 Bioelastomeric stent | 227 | 1994 | |
| 5,599,352 Method of making a drug eluting stent | 157 | 1994 | |
| 5,554,182 Method for preventing restenosis | 148 | 1995 | |
| 5,591,227 Drug eluting stent | 216 | 1995 | |
| 5,628,785 Bioelastomeric stent | 103 | 1995 | |
| 5,697,967 Drug eluting stent | 240 | 1995 | |
| 5,702,818 Biocompatability of solid surfaces | 38 | 1995 | |
| 5,624,411 Intravascular stent and method | 457 | 1995 | |
| 5,893,840 Releasable microcapsules on balloon catheters | 112 | 1996 | |
| 5,811,151 Method of modifying the surface of a medical device | 90 | 1996 | |
| 5,824,048 Method for delivering a therapeutic substance to a body lumen | 363 | 1996 | |
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| 6,106,454 Medical device for delivering localized radiation | 76 | 1997 | |
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| 5,928,916 Ionic attachment of biomolecules with a guanidino moiety to medical device surfaces | 59 | 1998 | |
| 6,033,719 Method for covalent attachment of biomolecules to surfaces of medical devices | 59 | 1998 | |
| 6,024,918 Method for attachment of biomolecules to surfaces of medical devices | 60 | 1998 | |
| 5,925,552 Method for attachment of biomolecules to medical devices surfaces | 84 | 1998 | |
| 6,013,099 Medical device for delivering a water-insoluble therapeutic salt or substance | 93 | 1998 | |
| 6,080,190 Intraluminal stent | 106 | 1998 | |
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| 5,342,621 Antithrombogenic surface | 232 | 1992 | |
| 5,649,977 Metal reinforced polymer stent | 400 | 1994 | |
| 5,707,385 Drug loaded elastic membrane and method for delivery | 233 | 1994 | |
| 5,637,113 Polymer film for wrapping a stent structure | 361 | 1994 | |
| 5,605,696 Drug loaded polymeric material and method of manufacture | 523 | 1995 | |
| 5,766,710 Biodegradable mesh and film stent | 223 | 1996 | |
| 5,871,436 Radiation therapy method and device | 102 | 1996 | |
| 5,700,286 Polymer film for wrapping a stent structure | 521 | 1996 | |
| 5,843,172 Porous medicated stent | 333 | 1997 | |
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| 5,897,911 Polymer-coated stent structure | 164 | 1997 | |
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| 6,582,417 Methods and apparatuses for radiation treatment | 32 | 2000 | |
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| 6,504,307 Application of variable bias voltage on a cylindrical grid enclosing a target | 24 | 2000 | |
| 6,524,232 Method for radioactive stent delivery | 22 | 2000 | |
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| 5,064,435 Self-expanding prosthesis having stable axial length | 892 | 1990 | |
| 5,366,504 Tubular medical prosthesis | 387 | 1992 | |
| 5,693,085 Stent with collagen | 418 | 1995 | |
| 5,837,313 Drug release stent coating process | 558 | 1996 | |
| 5,871,437 Radioactive stent for treating blood vessels to prevent restenosis | 107 | 1996 | |
| 5,857,998 Stent and therapeutic delivery system | 132 | 1997 | |
| 5,902,631 Lubricity gradient for medical devices | 96 | 1997 | |
| 5,980,564 Bioabsorbable implantable endoprosthesis with reservoir | 160 | 1997 | |
| 5,980,972 Method of applying drug-release coatings | 405 | 1997 | |
| 5,972,027 Porous stent drug delivery system | 309 | 1997 | |
| 6,099,561 Vascular and endoluminal stents with improved coatings | 251 | 1998 | |
| 6,258,121 Stent coating | 347 | 1999 | |
| 6,253,443 Method of forming a stent | 165 | 1999 | |
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| 5,840,009 Radioisotope stent with increased radiation field strength at the ends of the stent | 113 | 1995 | |
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| 5,464,450 Biodegradable drug delivery vascular stent | 245 | 1994 | |
| 5,551,954 Biodegradable drug delivery vascular stent | 253 | 1994 | |
| 5,500,013 Biodegradable drug delivery vascular stent | 280 | 1995 | |
| 5,769,883 Biodegradable drug delivery vascular stent | 265 | 1995 | |
| 6,379,379 Stent with smooth ends | 120 | 1999 | |
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| 5,336,518 Treatment of metallic surfaces using radiofrequency plasma deposition and chemical attachment of bioactive agents | 128 | 1992 | |
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| 6,273,913 Modified stent useful for delivery of drugs along stent strut | 484 | 1998 | |
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| 5,100,429 Endovascular stent and delivery system | 435 | 1989 | |
| 6,273,850 Device for positioning a radiation source at a stenosis treatment site | 31 | 1997 | |
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| 6,099,559 Endoluminal support assembly with capped ends | 70 | 1998 | |
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| 5,667,767 Compositions for use in embolizing blood vessels | 389 | 1995 | |
| 5,830,178 Methods for embolizing vascular sites with an emboilizing composition comprising dimethylsulfoxide | 387 | 1996 | |
| 5,851,508 Compositions for use in embolizing blood vessels | 322 | 1997 | |
| 6,015,541 Radioactive embolizing compositions | 336 | 1997 | |
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| 6,096,070 Coated implantable medical device | 672 | 1996 | |
| 5,824,049 Coated implantable medical device | 658 | 1996 | |
| 5,873,904 Silver implantable medical device | 657 | 1997 | |
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| 5,674,242 Endoprosthetic device with therapeutic compound | 321 | 1996 | |
| 6,019,789 Expandable unit cell and intraluminal stent | 174 | 1998 | |
| 6,168,619 Intravascular stent having a coaxial polymer member and end sleeves | 97 | 1998 | |
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| 5,997,517 Bonding layers for medical device surface coatings | 260 | 1997 | |
| 6,110,483 Adherent, flexible hydrogel and medicated coatings | 248 | 1997 | |
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| 5,470,313 Variable diameter balloon dilatation catheter | 126 | 1994 | |
| 5,782,742 Radiation delivery balloon | 101 | 1997 | |
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| 6,153,252 Process for coating stents | 560 | 1999 | |
| 6,224,894 Copolymers of absorbable polyoxaesters | 56 | 2000 | |
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| 4,977,901 Article having non-crosslinked crystallized polymer coatings | 319 | 1990 | |
| 5,258,419 Methods of preparing radiation resistant heat sealable polymer blends | 55 | 1992 | |
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| 6,214,901 Bioactive agent release coating | 205 | 1999 | |
| 6,344,035 Bioactive agent release coating | 188 | 2000 | |
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| 5,628,730 Phoretic balloon catheter with hydrogel coating | 282 | 1994 | |
| 5,800,392 Microporous catheter | 230 | 1996 | |
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| 6,093,199 Intra-luminal device for treatment of body cavities and lumens and method of use | 188 | 1998 | |
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| 6,071,305 Directional drug delivery stent and method of use | 317 | 1997 | |
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| 5,716,981 Anti-angiogenic compositions and methods of use | 590 | 1995 | |
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| 5,968,092 Method for making a biodegradable stent | 129 | 1998 | |
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| 6,010,530 Self-expanding endoluminal prosthesis | 269 | 1998 | |
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| 5,087,244 Catheter and method for locally applying medication to the wall of a blood vessel or other body lumen | 247 | 1990 | |
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| 4,800,882 Endovascular stent and delivery system | 1134 | 1987 | |
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| 6,042,606 Radially expandable non-axially contracting surgical stent | 160 | 1997 | |
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| 5,968,091 Stents and stent grafts having enhanced hoop strength and methods of making the same | 199 | 1997 | |
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| 6,140,431 Process for preparing continuously variable-composition copolymers | 45 | 1998 | |
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| 4,733,665 Expandable intraluminal graft, and method and apparatus for implanting an expandable intraluminal graft | 1941 | 1985 | |
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| 5,972,029 Remotely operable stent | 50 | 1998 | |
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| 5,328,471 Method and apparatus for treatment of focal disease in hollow tubular organs and other tissue lumens | 457 | 1993 | |
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| 5,898,178 Ion source for generation of radioactive ion beams | 29 | 1997 | |
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| 6,413,272 Stent for vessel | 59 | 2001 | |
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| 6,242,041 Method and composition for modifying the surface of an object | 67 | 1998 | |
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| 5,464,650 Intravascular stent and method | 673 | 1993 | |
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| 6,319,520 Solid thermoformable controlled-release pharmaceutical composition | 43 | 2000 | |
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| 6,165,212 Expandable supportive endoluminal grafts | 359 | 1999 | |
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| 5,059,166 Intra-arterial stent with the capability to inhibit intimal hyperplasia | 402 | 1989 | |
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| 6,262,034 Polymeric gene delivery system | 149 | 1997 | |
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| 5,951,881 Fabrication of small-scale cylindrical articles | 118 | 1996 | |
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| 5,411,466 Apparatus for restenosis treatment | 204 | 1994 | |
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| 6,149,574 Dual catheter radiation delivery system | 85 | 1998 | |
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| 6,059,752 Mechanical apparatus and method for dilating and irradiating a site of treatment | 87 | 1997 | |
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| 5,971,954 Method of making catheter | 299 | 1997 | |
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| 6,042,875 Drug-releasing coatings for medical devices | 316 | 1999 | |
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| 5,649,951 Zirconium oxide and zirconium nitride coated stents | 106 | 1995 | |
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| 5,826,586 Methods for producing medical implants with roughened, particulate-free surfaces | 45 | 1997 | |
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| 5,858,556 Multilayer composite tubular structure and method of making | 218 | 1997 | |
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| 5,858,990 Fas ligand compositions for treatment of proliferative disorders | 67 | 1997 | |
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| 6,231,590 Bioactive coating for vaso-occlusive devices | 67 | 1999 | |
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| 6,080,099 Radioactive therapeutic seeds | 95 | 1998 | |
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| 5,670,558 Medical instruments that exhibit surface lubricity when wetted | 332 | 1995 | |
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| 4,994,560 Functionalized polyamine chelants and radioactive rhodium complexes thereof for conjugation to antibodies | 59 | 1987 | |
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| 5,578,073 Thromboresistant surface treatment for biomaterials | 313 | 1994 | |
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| 4,931,287 Heterogeneous interpenetrating polymer networks for the controlled release of drugs | 154 | 1988 | |
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| 5,711,812 Apparatus for obtaining dose uniformity in plasma doping (PLAD) ion implantation processes | 93 | 1995 | |
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| 5,713,949 Microporous covered stents and method of coating | 224 | 1996 | |
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| 5,213,561 Method and devices for preventing restenosis after angioplasty | 218 | 1992 | |
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| 5,693,376 Method for plasma source ion implantation and deposition for cylindrical surfaces | 49 | 1995 | |
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| 5,040,548 Angioplasty mehtod | 359 | 1990 | |
| 5,342,283 Endocurietherapy | 197 | 1990 | |
| 5,232,444 Dilatation catheter | 230 | 1991 | |
| 5,730,698 Balloon expandable temporary radioisotope stent system | 175 | 1995 | |
| 5,980,928 Implant for preventing conjunctivitis in cattle | 310 | 1997 | |
Patent Citation Ranking
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Jan 20, 2016 |
| Fee | Large entity fee | small entity fee | micro entity fee |
|---|---|---|---|
| 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 |