IP Library › Granted Patent US 7,994,213
Granted Patent B2
US 7,994,213 · App. 12/154,863 · Granted Aug 9, 2011

Coating agent for drug releasing stent, preparation method thereof and drug releasing stent coated therewith

Assignees: Taewoong Medical Co., Ltd.; Kyong-Min Shin
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Quick Facts
Patent No.
US 7,994,213
App. No.
12/154,863
Granted
Aug 9, 2011
Kind
B2
Abstract

Disclosed are a coating agent for drug releasing stents, a method for preparing the same and a drug releasing stent coated therewith. The coating agent for drug releasing stents comprises nanoparticles with a biologically active material entrapped therein, wherein the particles are formed of a polyethyleneimine (PEI)-deoxycholic acid (DOCA) polymer (PDo) in which 1˜8 moles of DOCA are grafted per mole of PEI.

Claims (2)

1. A coating agent for drug releasing stents, comprising a mixture of polyurethane and nanoparticles of a polyethyleneimine(PEI)-deoxycholic acid (DOCA) polymer (PDo), wherein a biologically active material is entrapped in said nanoparticles and wherein said polyethyleneimine(PEI)-deoxycholic acid (DOCA) polymer (PDo) is formed from 1-8 moles of DOCA per mole of PEI.

2. The coating agent according to claim 1 , wherein the biologically active material is taxol.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 11, 2023
From: SHIN, KYONG MIN
To: TAEWOONG MEDICAL CO., LTD
Reel/Frame 064560/0293 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 28, 2008
From: SHIN, KYONG-MIN; LEE, DONG-KI; LEE, DON-HAENG; NA, KUN; JO, EUN-AE
To: TAEWOONG MEDICAL CO., LTD.; SHIN, KYONG-MIN
Reel/Frame 021056/0067 →
Priority Claims (1)
KR 10-2007-0053887 · Jun 1, 2007 · national
Continuity (1)
Related Publication 20090286864A1 · Nov 19, 2009