Double-wall balloon catheter for treatment of proliferative tiss

Details Double-wall balloon catheter for treatment of proliferative tiss Double-wall balloon catheter for treatment of proliferative tiss

1997-07-24

1999-06-22

Lacyk, John P.

Surgery

Radioactive substance applied to body for therapy

Radioactive substance placed within body

A61N 500

Patent

active

059138130

ABSTRACT:
An instrument for use in brachytherapy comprises a concentric arrangement of inner and outer distensible, spherical chambers disposed near the proximal end of a catheter body where one of the chambers is made to contain a radioactive material with the other chamber containing a radiation absorptive material, the apparatus functioning to provide a more uniform absorbed dose profile in tissue surrounding a cavity created by the removal of a tumor. An alternative embodiment includes non-spherical inner and outer chambers whose respective walls are spaced equidistant over the entire surfaces thereof.

REFERENCES:
patent: 3324847 (1967-06-01), Zoumboulis
patent: 5106360 (1992-04-01), Ishiwara et al.
patent: 5429582 (1995-07-01), Williams
patent: 5611767 (1997-03-01), Williams
patent: 5662580 (1997-09-01), Bradshaw et al.
patent: 5782742 (1998-07-01), Crocker et al.
patent: 5785688 (1998-07-01), Joshi et al.

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