Catheter having an expandable radioactive source

Details Catheter having an expandable radioactive source Catheter having an expandable radioactive source

1997-01-21

1999-03-09

Lacyk, John P.

Surgery

Radioactive substance applied to body for therapy

Radioactive substance placed within body

A61N 500

Patent

active

058792821

ABSTRACT:
A balloon catheter for irradiation with or without dilatation of an arterial stenosis has an inflatable balloon and a generally cylindrical, thin-walled, elastic radioactive source both located coaxially at a distal section of the balloon catheter. The elastic radioactive source is moved radially outward as a result of injection of an inflation fluid into the inflatable balloon thus placing the radioactive source in close proximity to the wall of a vessel of the human body into which the balloon catheter has been inserted.

REFERENCES:
patent: 5302168 (1994-04-01), Hess
patent: 5411466 (1995-05-01), Hess
patent: 5484384 (1996-01-01), Fearnot
patent: 5730698 (1998-03-01), Fischell et al.

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