Tissue irradiation with shielding

Details Tissue irradiation with shielding Tissue irradiation with shielding

2006-11-06

2008-08-05

Lacyk, John P (Department: 3735)

Surgery

Radioactive substance applied to body for therapy

Radioactive substance placed within body

Reexamination Certificate

active

07407476

ABSTRACT:
Devices and methods are disclosed for treatment to tissue surrounding a body cavity or other intracorporeal site, such as after removal of tissue, e.g. cancer. Such a device includes a treatment location on a distal portion of the device with one or more radiation shielding components that partially encircle a radiation source at the treatment location to control emitted radiation from the radiation source. The device minimizes radiation damage to healthy tissue surrounding the body cavity or other site while irradiating tissue not shielded by the radiation shielding components. A device embodying features of the invention can include a sealing member at a location on a shaft of the device proximal to a treatment location to seal the passageway leading to the body cavity.

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Written Opinion of the International Searching Authority for PCT/US2006/043891 mailed Sep. 25, 2007.

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