A displacement detection system (20) for a multileaf collimator (100), a multileaf collimator (100) including a plurality of blades (10), and a plurality of scale identification (11) on each blade (10). The displacement detection system (20) includes a multi group displacement detection device (21), and each blade (10) corresponds to at least one set of displacement detection devices (21). Each displacement detection device (21) comprises a laser transmitter (211), laser marking corresponding to the scale on the blade (11); a photoelectric receiver (212), receiving marks (11) optical signal reflection, and converts the optical signal into electrical signal output; fiber optic components (213), coupled with laser the transmitter (211) and a photoelectric receiver (212), and (10) are arranged at the edge of the blade, the optical fiber assembly (213) includes an optical fiber (2131) and the corresponding detection head (2132), the detecting head (2132) on the scale (11), (213) for optical fiber laser through the detection head (2132) is transmitted to the scale (11), and the scale identification (11) optical signal transmission and reflection to the photoelectric receiver (212); and the processing device (215), a photoelectric receiver (212) for receiving the electrical signal output, and the blade is calculated according to the change of signal (10) mobile Distance.
【技术实现步骤摘要】
【国外来华专利技术】PCT国内申请，说明书已公开。
【技术保护点】
PCT国内申请，权利要求书已公开。
【技术特征摘要】
【国外来华专利技术】PCT国内申请，...
【专利技术属性】
技术研发人员：杨勇强，闵浩，
申请(专利权)人：武汉数码刀医疗有限公司，
类型：发明
国别省市：湖北,42
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