U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Medicament dispensing stent for prevention of restenosis of a blood vessel

Patent 5419760 Issued on May 30, 1995. Estimated Expiration Date: Icon_subject October 11, 2014. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

3914802

Method of treatment of atherosclerosis and a balloon catheter for same
Patent #: 4512762
Issued on: 04/23/1985
Inventor: Spears

Method and apparatus for angioplasty
Patent #: 5019075
Issued on: 05/28/1991
Inventor: Spears, et al.

Radially expandable endoprosthesis and the like
Patent #: 5019090
Issued on: 05/28/1991
Inventor: Pinchuk

Support for anastomosing or connecting living organs
Patent #: 5064057
Issued on: 11/12/1991
Inventor: Iwatsuki, et al.

Non-aqueous dispersing agent and liquid developing agent for electrostatic photography
Patent #: 5085966
Issued on: 02/04/1992
Inventor: Suzuki, et al.

Liquid developer for electrostatic photography
Patent #: 5112718
Issued on: 05/12/1992
Inventor: Kato, et al.

Drug delivery collagen-impregnated synthetic vascular graft
Patent #: 5197977
Issued on: 03/30/1993
Inventor: Hoffman, Jr., et al.

Hydrophilic stent
Patent #: 5234456
Issued on: 08/10/1993
Inventor: Silvestrini

Artificial tubular organ Patent #: 5236447
Issued on: 08/17/1993
Inventor: Kubo, et al.

Inventor

Assignee

Application

No. 320779 filed on 10/11/1994

US Classes:

604/8, DEVICES TRANSFERRING FLUIDS FROM WITHIN ONE AREA OF BODY TO ANOTHER (E.G., SHUNTS, ETC.)606/154, Bioabsorbable606/194, Inserted in vascular system623/1.42Drug delivery

Examiners

Primary: Rimell, Sam

Attorney, Agent or Firm

International Class

A61B 006/00

Abstract

Following recanalization of a stenotic blood vessel, a photosensitizer is administered by means of a vaso-absorbable stent to maintain the photosensitizer concentration level in the atheromatous plaque and smooth muscle cells in the vicinity of the lesion for a period of 5-18 days, the period in which cell proliferation can occur. The Vaso-Absorbable Stent (VAST) is described along with the method for its use in Photoatherolytic (PAL) Therapy. The VAST device is used post cardiovascular intervention to: a) deliver a series of drugs to prevent cell proliferation leading to restenosis; and, (b) maintain the patency of the treated vessel and prevent elastic recoil of the vessel by providing support for the vessel wall; and c) deliver and maintain a level of photosensitizer to the treatment site which inhibits smooth muscle cell proliferation and, when activated by light energy, induces cell lysis. The photosensitizer inhibits smooth muscle cell proliferation and, thus, minimizes or eliminates the possibility of re-stenosis. The photosensitizer is then illuminated at the end of this period, thereby lysing the atheromatous plaque and smooth muscles.

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