Devices and methods for radiation treatment of an internal body

Details Devices and methods for radiation treatment of an internal body Devices and methods for radiation treatment of an internal body

1996-08-20

1999-01-26

Lacyk, John P.

Surgery

Radioactive substance applied to body for therapy

Radioactive substance placed within body

A61N 500

Patent

active

058632840

ABSTRACT:
The invention provides methods and devices for delivering low level radiation to inhibit neointimal hyperplasia following angioplasty or other intravascular procedures. In an exemplary method, a balloon is inflated within a stenosed region of a blood vessel to produce a treated region. The balloon is then deflated and a radioactive source within a sleeve is aligned over the deflated balloon. The balloon is again inflated at the treated region to engage the sleeve having the radioactive source against the blood vessel within the treated region for from 1 to 40 minutes to deliver a sufficient dose of radiation to inhibit neointimal hyperplasia.

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