Variable expansion force stent

Details Variable expansion force stent Variable expansion force stent

1997-05-22

1998-11-17

Buiz, Michael Powell

Surgery

Instruments

Internal pressure applicator

606195, 623 1, 623 12, A61M 2900

Patent

active

058369660

ABSTRACT:
A stent having varying outward radial force along its length. In use, the stent can provide greater force in vessel regions requiring greater force and less force in regions requiring less. In particular, more force is provided in the narrowed, center of a stenosis, while not applying too much force to the adjoining healthy tissue area. Greater stent expansion is provided in wider vessel geometries and less stent expansion in narrower regions. Varying force is achieved varying the number of elements, the density of elements, and the thickness of the elements.

REFERENCES:
patent: 5342300 (1994-08-01), Stefanadis et al.
patent: 5383892 (1995-01-01), Cardon et al.
patent: 5449373 (1995-09-01), Pinchasik et al.
patent: 5540712 (1996-07-01), Kleshinski et al.
patent: 5658308 (1997-08-01), Snyder
Stent Handbook, An Educational Reference Guide, SciMed Life Systems, Inc., 26 pages, 1996.

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