Prosthesis (i.e. – artificial body members) – parts thereof – or ai – Arterial prosthesis – Stent structure
Reexamination Certificate
2005-07-19
2005-07-19
Lucchesi, Nicholas D. (Department: 3763)
Prosthesis (i.e., artificial body members), parts thereof, or ai
Arterial prosthesis
Stent structure
C623S001430, C623S001460, C623S023740, C623S023760
Reexamination Certificate
active
06918927
ABSTRACT:
A medical device (10) includes a structure (12) adapted for introduction into a patient, the structure (12) being formed of a preferably non-porous base material (14) having a roughened or textured surface (16). The structure (12) is conveniently configured as a vascular stent with a base material (14) of stainless steel, nitinol or another suitable material. The medical device (10) also includes a layer (18) of a bioactive material posited directly upon the roughened or textured surface (16) of the base material (14) of the structure (12). The surface (16) of the base material (14) is roughened or textured by etching or by abrasion with sodium bicarbonate or another suitable grit. A preferred roughened or textured surface (16) is thought to have a mean surface roughness of about 10 μin. (about 250 nm) and a surface roughness range between about 1 μin. and about 100 μin. (about 25 nm and about 2.5 μm). The particularly preferred use of sodium bicarbonate as the abrasive to provide roughness or texture to the surface (16) of the base material (14) of the structure (12) is additionally advantageous in the low toxicity of the sodium bicarbonate to production workers, the ease of product and waste cleanup, and the biocompatibility of any residual sodium bicarbonate.
REFERENCES:
patent: 5053048 (1991-10-01), Pinchuk
patent: 5226260 (1993-07-01), Mar et al.
patent: 5380299 (1995-01-01), Fearnot et al.
patent: 5609629 (1997-03-01), Fearnot et al.
patent: 5624411 (1997-04-01), Tuch
patent: 5697967 (1997-12-01), Dinh et al.
patent: 5824049 (1998-10-01), Ragheb et al.
patent: 5843172 (1998-12-01), Yan
patent: 5873904 (1999-02-01), Ragheb et al.
patent: 5934904 (1999-08-01), Elrod et al.
patent: 5951586 (1999-09-01), Berg et al.
patent: 6096070 (2000-08-01), Ragheb et al.
patent: 6099561 (2000-08-01), Alt
patent: 6254632 (2001-07-01), Wu et al.
patent: 6273908 (2001-08-01), Ndondo-Lay
patent: 6299604 (2001-10-01), Ragheb et al.
patent: 6379381 (2002-04-01), Hossainy et al.
patent: 6638302 (2003-10-01), Curcio et al.
patent: 6641607 (2003-11-01), Hossainy et al.
patent: 6645135 (2003-11-01), Bhat
patent: 0806212 (1997-05-01), None
patent: 0 806 212 (1997-11-01), None
patent: 0850604 (1997-12-01), None
patent: 9949901 (1999-10-01), None
patent: 0024437 (2000-05-01), None
patent: 0028554 (2000-05-01), None
Silver Implantable Medical Device; Ragheb, Bates, Fearnot, Osborne, Kozma, Roberts, Vorhees; Pending U.S. Appl. No. 08/956,715; Oct. 23, 1997.
Coated Implantable Medical Device; Ragheb, Bates, Fearnot, Kozma, Voorhees, Gershlick; Pending U.S. Appl. No. 09/027,054; Feb. 20, 1998.
Coated Implantable Medical Device; Ragheb, Bates, Fearnot, Kozma, Voorhees; Pending U.S. Appl. No. 09/378,541; Aug. 20, 1999.
Bates Brian L.
Bourdeau William J.
Choules Brian D.
Fearnot Neal E.
Purdy James D.
Cook Incorporated
Godlewski Richard J.
Han Mark K.
Lucchesi Nicholas D.
MED Institute, Inc.
LandOfFree
Coated implantable medical device does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Coated implantable medical device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Coated implantable medical device will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3367431