Stent delivery systems

Details Stent delivery systems Stent delivery systems

1993-05-10

1994-12-13

Burr, Edgar S.

Surgery

Instruments

Means for inserting or removing conduit within body

606194, A61B 1700

Patent

active

053726006

ABSTRACT:
This invention is directed to stent delivery systems. In one embodiment an apparatus for implanting a flexible, generally cylindrical, expandable stent, comprises a catheter having distal and proximal ends, the catheter defining a central lumen and a second lumen extending therethrough and having two longitudinally displaced openings extending from the second lumen radially to the surface of the catheter; a flexible, expandable stent having discrete proximal and distal ends, the stent being positioned circumferentially around the catheter and the discrete ends extending into the openings to hold the stent in position; and at least one release wire positioned in and extending through the second lumen, the release wire or wires fixedly containing at least one conically shaped pushing member capable of causing a discrete end of the stent to move radially as the release wire is moved proximally.

REFERENCES:
patent: 2499045 (1950-02-01), Walker et al.
patent: 4768507 (1988-06-01), Fischell et al.
patent: 4771773 (1988-09-01), Kropf
patent: 4795458 (1989-01-01), Regan
patent: 4878906 (1989-07-01), Lindemann et al.
patent: 4913141 (1990-03-01), Hillstead
patent: 5108416 (1992-04-01), Ryan
patent: 5147370 (1992-09-01), McNamara et al.
E. J. G. Milroy et al., "A New Treatment For Urethral Strictures": A Permanently Inplanted Urethral Stent Journal of Urology, vol. 141, May, 1989 pp. 1120-1122.

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