US Patent No: 6,290,689
Number of patents in Portfolio can not be more than 2000
Catheter devices and methods for their use in the treatment of calcified vascular occlusions
Stats
-
Sep 18, 2001
Issued date -
Oct 22, 1999
filing date -
09/425,826
serial no -
In Force
status
Importance
Loading Importance Indicators...
Abstract
Catheter devices and methods for their use in enhancing fluid flow through a vascular site occupied by a vascular occlusion are provided. The subject catheter devices include at least a first, second and third lumen, where: (a) the first lumen is used for delivery of an acidic dissolution solution to the vascular site; (b) the second lumen is used for delivery of a buffer solution to the vascular site; and (c) the third lumen is used for removal of fluid from the vascular site. In many preferred embodiments, the first, second and third lumens are coaxial. In practicing the subject methods, the vascular site is flushed simultaneously with an acidic dissolution fluid and a buffer solution, where flushing is carried out in a manner such that only a surface of the vascular occlusion is contacted with the acidic dissolution fluid and the remainder of the vascular site is not contacted with fluid having a pH that is lower than about 4. Flushing is carried out in this manner for a period of time sufficient for fluid flow through the vascular site to be enhanced, e.g. increased or established. The subject catheter devices and methods find use in the treatment of a variety of different vascular diseases characterized by the presence of calcified vascular occlusions, including peripheral and coronary vascular diseases.
Loading the Abstract Image...
First Claim
Related Publications
Loading Related Publications...
International Classification(s)
- [Classification Symbol]
- [Patents Count]
Cited Art
| Patent Info | (Count) | # Cites | Year |
|---|---|---|---|
|
|
|||
| 5,090,960 Regional perfusion dissolution catheter | 102 | 1990 | |
| 5,195,955 Device for removal of embolic debris | 159 | 1990 | |
| 5,222,941 Method of dissolving an obstruction in a vessel | 63 | 1991 | |
| 5,380,284 Obstruction dissolution catheter with variably expanding blocking balloons and method of use | 60 | 1993 | |
|
|
|||
| 5,496,267 Asymmetric water jet atherectomy | 103 | 1990 | |
| 5,370,609 Thrombectomy device | 138 | 1993 | |
| 5,785,675 Thrombectomy device | 35 | 1994 | |
|
|
|||
| 5,167,623 Multilumen catheter | 117 | 1990 | |
| 5,149,330 Catheter convertible from single to multilumen | 94 | 1991 | |
| 5,207,648 Multilumen catheter | 83 | 1992 | |
|
|
|||
| 4,573,966 Method and apparatus for removing and/or enlarging constricted areas in vessels conducting body fluids | 287 | 1982 | |
| 4,610,662 Method for the elimination or the enlargement of points of constriction in vessels carrying body fluids | 286 | 1983 | |
|
|
|||
| 4,655,746 Catheter device | 265 | 1985 | |
| 5,542,937 Multilumen extruded catheter | 78 | 1994 | |
|
|
|||
| 5,462,529 Adjustable treatment chamber catheter | 314 | 1993 | |
|
|
|||
| 4,976,733 Prevention of prosthesis calcification | 76 | 1989 | |
|
|
|||
| 5,443,446 Method and apparatus for in vivo heart valve decalcification | 132 | 1994 | |
|
|
|||
| 4,690,672 Apparatus for removing solid structures from body passages | 99 | 1986 | |
|
|
|||
| 4,838,881 Multilumen catheter and associated IV tubing | 57 | 1988 | |
|
|
|||
| 4,329,994 Multilumen catheter | 27 | 1980 | |
|
|
|||
| 5,059,178 Method of percutaneously removing a thrombus from a blood vessel by using catheters and system for removing a thrombus from a blood vessel by using catheters | 190 | 1991 | |
|
|
|||
| 4,445,892 Dual balloon catheter device | 500 | 1982 | |
|
|
|||
| 5,833,650 Catheter apparatus and method for treating occluded vessels | 384 | 1995 | |
|
|
|||
| 4,636,195 Method and apparatus for removing arterial constriction | 219 | 1985 | |
| 4,824,436 Method for the prevention of restenosis | 233 | 1987 | |
| 4,911,163 Two ballooned catheter device for diagnostic and operative use | 218 | 1988 | |
| 5,167,628 Aortic balloon catheter assembly for indirect infusion of the coronary arteries | 213 | 1991 | |
| 6,013,068 Variable lumen catheter | 11 | 1998 | |
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 | Mar 18, 2013 |
| 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 |