Verification system for radiation therapy

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United States of America Patent

PATENT NO 5394452
SERIAL NO

08074185

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Abstract

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A radiation therapy apparatus includes a compensator with moving leaves to attenuate a radiation beam and a compensator verification system to determine if the attenuating leaves are moving in accordance with desired position signals. Two radiation intensity monitoring chambers, one chamber on either side of a patient within a radiation beam, produce beam fluence data used by a computer to construct radiation absorption images and to evaluate the functionality of the compensator. The absorption image can be used for both radiation dose verification and planning of suitable subsequent therapy sessions.

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Patent Owner(s)

Patent OwnerAddress
VENTURE INVESTORS EARLY STAGE FUND III LIMITD PARTNERSHIPVENTURE INVESTORS MANAGEMENT LLC 505 SOUTH ROSA DRIVE MADISON WI 53711
AVALON TECHNOLOGY LLC A MICHIGAN LIMITED LIABILITY COMPANYFIRST NATIONAL BUILDING 201 SOUTH MAIN STREET ANN ARBOR MI 48104
ADVANTAGE CAPITAL WISCONSIN PARTNERS I LIMITED PARTNERSHIPC/O VENTURE INVESTORS MANAGEMENT LLC 505 SOUTH ROSA DRIVE MADISON WI 53711

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Holmes, Timothy Madison, WI 16 2668
Mackie, Thomas R Madison, WI 52 4603
Swerdloff, Stuart Madison, WI 9 1240

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