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Title:
LEAF POSITIONING DEVICE FOR MULTI-LEAF COLLIMATOR
Document Type and Number:
WIPO Patent Application WO/2018/113310
Kind Code:
A1
Abstract:
Disclosed is a leaf positioning device (100) for a multi-leaf collimator, comprising: a transmitting plate (110), a receiving plate (120) and a positioning module (130), wherein the transmitting plate (110) and the receiving plate (120) are oppositely provided on a leaf guide rail box (101) of a multi-leaf collimator; a plurality of positioning signal transmitters (111) are provided on the transmitting plate (110); a plurality of positioning signal receivers (121) are correspondingly provided on the receiving plate (120); leaves (108) of the multi-leaf collimator are provided between opposing positioning signal transmitters (111) and positioning signal receivers (121); a positioning signal transmitting path of the positioning signal transmitters (111) is parallel with a plane formed by the movement of the leaves (108) of the multi-leaf collimator; and the positioning module (130) is connected to each positioning signal receiver (121) so as to receive an output signal of the positioning signal transmitters (111). The present technical solution can position the position of each leaf (108) of a multi-leaf collimator, directly reading the position where each leaf (108) is currently located, and cooperating with a screw (105) to precisely control the movement of the leaves (108).

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Inventors:
YANG BIN (CN)
ZHANG MENGMENG (CN)
Application Number:
PCT/CN2017/096216
Publication Date:
June 28, 2018
Filing Date:
August 07, 2017
Export Citation:
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Assignee:
CYBERMED TECH XIAN CO LTD (CN)
International Classes:
A61N5/00
Foreign References:
CN2523447Y2002-12-04
CN104147712A2014-11-19
US20090080619A12009-03-26
CN104667427A2015-06-03
CN102755696A2012-10-31
Attorney, Agent or Firm:
SHENZHEN HYVISION INTELLECTUAL PROPERTY ATTORNEY (CN)
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