STENT COATING TO DISCHARGE MEDICINE AND METHOD

Title:

STENT COATING TO DISCHARGE MEDICINE AND METHOD

Document Type and Number:

Japanese Patent JP2007021247

Kind Code:

A

Abstract:

To provide the coating of a metallic stent prosthesis having a lattice structure with intervals, and a method.

The coating has a comparatively thin layer and the layer is comprised of a biologically stable elastomeric material. The elastomeric material has the prescribed quantity of a dispersed biologically active substance such as heparin particularly and has a non-thrombotic surface. In one embodiment of practice, a region comprised of a highly electronegative type is disposed on the surface by covering with fluoro-silicone. Thereby, the control of the elusion, particularly the initial discharge speed and the non-thrombotic nature is supported. An outer layer which is non-thrombotic because of heparin such as the one which has the covalent bonding with polyethylene glycol is presented.

Inventors:

DING NI
HELMUS MICHAEL N

Application Number:

JP2006286386A

Publication Date:

February 01, 2007

Filing Date:

October 20, 2006

Export Citation:

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Assignee:

BOSTON SCIENT LTD

International Classes:

A61F2/82; A61F2/86; A61F2/90; A61L27/00; A61L27/22; A61L31/00; A61L31/08; A61L31/10; A61L31/14; A61L31/16; A61L33/00; A61L33/10; A61F2/00

Domestic Patent References:

JPH05184666A	1993-07-27
JPH07328124A	1995-12-19
JPH0833718A	1996-02-06
JPH11276596A	1999-10-12
JPH07529A	1995-01-06
JPH06218063A	1994-08-09
JPH0833719A	1996-02-06
JPH05502179A	1993-04-22
JPH0889585A	1996-04-09

Foreign References:

WO1995029647A2

1995-11-09

Attorney, Agent or Firm:

Kazuo Shamoto
Shinjiro Ono
Yasushi Kobayashi
Akio Chiba
Hiroyuki Tomita
Okimoto Kazuaki

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