Surgery – Radioactive substance applied to body for therapy – Radioactive substance placed within body
Patent
1996-09-18
1998-05-12
Lacyk, John P.
Surgery
Radioactive substance applied to body for therapy
Radioactive substance placed within body
606194, 623 12, A61N 500
Patent
active
057498253
ABSTRACT:
A stent delivery catheter system for the treatment of stenoses at an arterial bifurcation consists of a main guide wire, a side branch guide wire, a unique design balloon angioplasty catheter which includes a side branch tube and a stent that can be deployed to a larger diameter in the main artery leading to the arterial bifurcation, and deployed to a smaller diameter within one of the branch arteries at an arterial bifurcation. The balloon angioplasty catheter used to deploy the dual diameter stent has a proximal section that has a larger diameter as compared to the diameter of a distal section which distal section is designed to be placed in a branch artery of the bifurcation. An opening in the wall of the stent allows for the passage of the side branch tube that provides angular orientation of the pre-deployed stent relative to the two branches of the bifurcation. The side branch tube is also used to help assure proper longitudinal placement of the stent relative to the saddle point of the bifurcation. After the stent is deployed, the opening in the stent wall allows unobstructed blood flow into that side branch artery that is not initially stented.
REFERENCES:
patent: 5176617 (1993-01-01), Fischell et al.
patent: 5609627 (1997-03-01), Goicoechea et al.
patent: 5632763 (1997-05-01), Glastra
patent: 5639278 (1997-06-01), Derume et al.
Fischell David R.
Fischell Robert E.
Fischell Tim A.
Turnland Todd H.
IsoStent, Inc.
Lacyk John P.
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