Source driving device for intracavitary tumour after-mounted radiotherapy machine
A radiation therapy and source-driven technology, which is applied in X-ray/γ-ray/particle irradiation therapy, etc., can solve problems such as troublesome assembly, commissioning and maintenance, high manufacturing cost, and slipping, so as to improve the reliability and accuracy of source drive and avoid pulling Growth and fracture phenomenon, the effect of reducing manufacturing cost
Inactive Publication Date: 2006-10-11
NUCLEAR POWER INSTITUTE OF CHINA
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Abstract
The present invention relates to a source driving device for intracavitary tumor post-installation radiation therapy machine. Compared with the existing source driving device, the device is improved in that: a steel wire flexible shaft is used instead of a steel wire rope as the source braid control cable, and the helix of the source braid control cable The helix angle γ and the pitch P1 of the shaped steel wire are equal to the helix angle β and the tooth pitch P2 of the helical gear respectively, which are 12°~14° and 2~3mm. The helical gear is used to replace the source driving wheel, and the driving mechanism is changed from friction transmission to meshing transmission between the source braid control cable and the helical gear. The source drive reliability of the treatment machine is increased from the original 95% to over 99.5%, the step treatment accuracy is increased from the original ±1mm to ±0.5mm, and the manufacturing cost is reduced by 25%.
Application Domain
X-ray/gamma-ray/particle-irradiation therapy
Technology Topic
Friction driveAbnormal tissue growth +8
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Property | Measurement | Unit |
Radius | 1.5 ~ 2.0 | mm |
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