Configuration of a medical radiotherapeutic instrument

Details Configuration of a medical radiotherapeutic instrument Configuration of a medical radiotherapeutic instrument

2007-08-13

2009-12-01

Glick, Edward J (Department: 2882)

X-ray or gamma ray systems or devices

Beam control

Collimator

C378S149000, C378S147000, C250S498100, C250S507100

Reexamination Certificate

active

07627090

ABSTRACT:
A medical radiotherapeutic instrument comprising a ray source body, a switch and an end collimation body, a pre-collimation hole and a ray source cavity for placing ray source are defined on the ray source body; the switch is at least one pillar, each pillar is coupled with a drive unit, the pillars are disposed inside the ray source body, a middle collimation hole is defined on each pillar; under the driving of the drive unit, the pillar arise a displacement to move the middle collimation hole into or out of alignment with the pre-collimation hole; the end collimation body is disposed inside the ray source body, and an end collimation hole is defined on the end collimation body, the end collimation hole is connected with the pre-collimation hole through the middle collimation hole to form a therapy path. The present invention is simplified in structure and low in cost, with this structure, it can control the switch separately, and continuously adjust the radiate amount.

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patent: 2001/0016028 (2001-08-01), Adams et al.
patent: 2008/0237473 (2008-10-01), Uribe et al.

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