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

Drug delivery stent

Patent 5891108 Issued on April 6, 1999. Estimated Expiration Date: Icon_subject April 6, 2016. 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

Helical ureteral stent
Patent #: 4531933
Issued on: 07/30/1985
Inventor: Norton ,   et al.

Peritoneal catheter
Patent #: 4681570
Issued on: 07/21/1987
Inventor: Dalton

Conduit system for directly administering topical anaesthesia to blocked laryngeal-tracheal areas
Patent #: 4693243
Issued on: 09/15/1987
Inventor: Buras

Spiral ureteral stent
Patent #: 4813925
Issued on: 03/21/1989
Inventor: Anderson, Jr. ,   et al.

Endoprosthesis for repairing a damaged vessel
Patent #: 4878906
Issued on: 11/07/1989
Inventor: Lindemann, et al.

Method and tube equipment for supplying fluid to a space and draining said space
Patent #: 4887996
Issued on: 12/19/1989
Inventor: Bengmark

Infusion stent system
Patent #: 4913683
Issued on: 04/03/1990
Inventor: Gregory

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

Endovascular stent and delivery system
Patent #: 5041126
Issued on: 08/20/1991
Inventor: Gianturco

Method and system for stent delivery
Patent #: 5158548
Issued on: 10/27/1992
Inventor: Lau, et al.

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Inventors

Application

No. 304163 filed on 09/12/1994

US Classes:

604/264, Body inserted tubular conduit structure (e.g., needles, cannulas, nozzles, trocars, catheters, etc.)604/265, With body soluble, antibactericidal or lubricating materials on conduit604/530, With shape retaining memory623/1.38, Absorbable in natural tissue623/1.42Drug delivery

Examiners

Primary: Stright, Ronald K. Jr.

Attorney, Agent or Firm

International Classes

A61M 005/00
A61M 025/00

Abstract

The drug delivery stent assembly includes a hollow tubular wire stent which extends in a path defining a generally cylindrical envelope and which has side walls facing outwardly of the cylindrical envelope with holes therein for delivery of liquid to a site in a vessel where the stent is placed and the stent being constructed in a manner which permits the stent to be placed in one of two states, one state being where the stent assumes the shape of an enlarged generally cylindrical envelope and the other state being where the stent assumes the shape of a contracted smaller cylindrical envelope.

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