COLLIMATOR FOR DETECTOR, AND APPLICATION THEREOF - BEIJING NOVEL MEDICAL EQUIPMENT LTD

Title:

COLLIMATOR FOR DETECTOR, AND APPLICATION THEREOF

Document Type and Number:

WIPO Patent Application WO/2019/210883

Kind Code:

A1

Abstract:

A collimator (10) for a detector (600). The collimator (10) comprises: a base plate (100), the base plate (100) being provided with imaging through holes (110) distributed in an array, each of the imaging through holes (110) comprising a first hole segment (111) and a second hole segment (112), the transverse size of the first hole segment (111) gradually decreasing in a direction from a free end to the second hole segment (112), and the transverse size of the second hole segment (112) gradually decreasing in a direction from the free end to the first hole segment (111); a shielding ring (200), the shielding ring (200) being formed on the base plate (100); and a top plate (300), the top plate (300) being disposed in the shielding ring (200) and closing at least a part of an opening of the shielding ring (200), the top plate (300) being provided with shielding through holes (310) distributed in an array, and the imaging through holes (110) and the shielding through holes (310) having one-to-one correspondence.

Inventors:

LIU YAQIANG (CN)
WANG HAIPENG (CN)
HOU YANSONG (CN)
JIANG NIANMING (CN)
ZHANG CHEN (CN)
CHEN SI (CN)
GAO LILEI (CN)
TIAN DONGLING (CN)
XU TIANPENG (CN)
QI CHANG (CN)
LIU MAI (CN)

Application Number:

PCT/CN2019/085728

Publication Date:

November 07, 2019

Filing Date:

May 06, 2019

Export Citation:

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Assignee:

BEIJING NOVEL MEDICAL EQUIPMENT LTD (CN)

International Classes:

A61B6/03; A61B6/00

Foreign References:

CN108685591A	2018-10-23
CN105232074A	2016-01-13
CN102008314A	2011-04-13
CN103169489A	2013-06-26
JP2012189345A	2012-10-04

Other References: