US Patent No: 7,465,298
Number of patents in Portfolio can not be more than 2000
Methods and systems for delivering liquid substances to tissues surrounding body lumens
Stats
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Dec 16, 2008
Issued date -
Jun 30, 2003
filing date -
10/610,790
serial no -
In Force
status
Importance
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Abstract
Methods, systems, and apparatus for delivering drugs and other substances to extraluminal tissue surrounding a body lumen are described. Catheters are used to inject the drug or other substance intraluminally into tissue surrounding a stent or other luminal scaffold. The drug or other substance is injected in an amount sufficient to cause diffusion back through the tissue to the stent. An absorptive structure, reservoir, or the like, on the stent then absorbs excess drug as it passes from the luminal tissue. In this way, the stent is first loaded with drug. After time, as the stent becomes fully loaded and the tissue becomes depleted, drug will be begin to flow back from the stent into the surrounding luminal tissue.
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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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| 6,776,792 Coated endovascular stent | 28 | 1997 | |
| 6,283,947 Local drug delivery injection catheter | 207 | 1999 | |
| 6,605,114 Heparin delivery method | 26 | 1999 | |
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| 5,645,564 Microfabricated therapeutic actuator mechanisms | 67 | 1995 | |
| 6,059,815 Microfabricated therapeutic actuators and release mechanisms therefor | 102 | 1998 | |
| 6,102,933 Release mechanism utilizing shape memory polymer material | 123 | 1999 | |
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| 5,538,504 Intra-extravascular drug delivery catheter and method | 70 | 1994 | |
| 5,681,281 Catheter with fluid medication injectors | 48 | 1995 | |
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| 5,196,024 Balloon catheter with cutting edge | 295 | 1990 | |
| 5,112,305 Catheter device for intramural delivery of therapeutic agents | 158 | 1990 | |
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| 5,354,279 Plural needle injection catheter | 184 | 1993 | |
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| 5,722,989 Microminiaturized minimally invasive intravascular micro-mechanical systems powered and controlled via fiber-optic cable | 77 | 1997 | |
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| 5,693,029 Pro-cell intra-cavity therapeutic agent delivery device | 91 | 1995 | |
Patent Citation Ranking
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Jun 16, 2016 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Jun 16, 2020 |
| Fee | Large entity fee | small entity fee | micro entity fee |
|---|---|---|---|
| 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 |