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1. 发明专利

JPH10300893A HIGH-SPEED X-RAY SHUTTER 失效
公开(公告)号：JPH10300893A
公开(公告)日：1998-11-13
申请号：JP11764297
申请日：1997-04-21
申请人： KOUENERUGII KASOKUKI KENKYU KI , KAWASAKI HEAVY IND LTD
发明人： HYODO KAZUYUKI , ANDO MASAMI , NAKAGAWA SHIGETOMO
IPC分类号： G21K1/04 , A61B6/00 , G21K5/02
摘要： PROBLEM TO BE SOLVED: To reduce X-ray exposure more by providing a shutter mechanism for passing X-ray only for a fixed time every fixed period and a detecting mechanism capable of confirming the passing state of X-ray, and emitting a trigger signal synchronous with the passing. SOLUTION: An Z-ray irradiation device 8 rotates an X-ray transmitting hole 20 at a prescribed speed to pass Xray for a fixed time every fixed period. A rotating drum 21 having the X-ray transmitting hole 20 vertical to the rotating axis is journalled to a bearing 23 fixed onto a base 22, and rotated by a drum rotating motor 24. An emitted light 7 straightly advances and reaches a spectroscope when the X-ray transmitting hole 20 is coincident with the optical path of the emitted light 7 including X-ray, and it is shielded to prevent a patient from being exposed to X-ray when the X-ray transmitting hole 20 is shifted from the optical path. The X-ray passing timing is detected by three detectors differed in principle of an optical sensor (a light emitting element 29, a light receiving element 30), a proximity sensor 31, and an encoder 32, and processed by a signal processing device. Thus, even if any one of these detectors fails, the device is never laid in inoperable state.

2. 发明专利

JPH07236632A X-RAY IMAGE PICKUP SYSTEM 失效
公开(公告)号：JPH07236632A
公开(公告)日：1995-09-12
申请号：JP5256394
申请日：1994-02-28
申请人： KOUENERUGII BUTSURIGAKU KENKYU , KAWASAKI HEAVY IND LTD
发明人： HYODO KAZUYUKI , ANDO MASAMI , OKU YASUNARI , AIZAWA KIYOSHI
IPC分类号： G01N23/04 , A61B6/00 , G21K1/06 , H01J35/00 , H01L21/027 , H05G2/00 , H05H13/04
摘要： PURPOSE:To draw a differential image of the coronary arteries in heart diagnosis with good contrast clearly without blurring and misregisteration to be taken as diagnostic data. CONSTITUTION:An electron radiated from an electron injection device is forced to run along an orbit formed between deflecting electromagnets of an electron storing ring, bipolar electromagnets 15, 15... are provided in front and in rear of an insert light source 6 interposed in the straight line part in such a manner as to be freely interrupted to excite to form a straight orbit (i) and a bump orbit part (ii), and synchrotron radiation light rays 7, 7' are forced to enter an analyzing crystal 9' forming a focus in the tangential direction of electron beams 2, 2'' with an angle of incidence changed by 1mrad. Diffracted X-rays 10, 10' of different wavelengths are extracted and transmitted through a heart part 12 to obtain a differential image through a scattered ray absorber 17 or an analyzing crystal for reflecting direct radiation.

3. 发明专利

JP2001037746A MEDICAL RADIATION LIGHT X-RAY IMAGE PICKUP DEVICE 失效
公开(公告)号：JP2001037746A
公开(公告)日：2001-02-13
申请号：JP21828899
申请日：1999-08-02
申请人： HIGH ENERGY ACCELERATOR RES , KAWASAKI HEAVY IND LTD
发明人： HYODO KAZUYUKI , ANDO MASAMI , OKU YASUNARI
IPC分类号： A61B6/00
摘要： PROBLEM TO BE SOLVED: To provide such a radiation light X-ray image pickup device of a small size which is usable for coronary artery contrast photography in a hospital by using an electron accumulation ring of electron beam energy below 3 GeV. SOLUTION: This device has an insertion light source 6 inserted into the electron accumulation ring 3, a spectroscope 9 and an image pickup device and executes X-ray contrast photography by placing a subject 11 between the spectroscope and the image pickup device. The good X-ray image is obtained by suppressing a half shadow Wd in the video of the subject in a manner that the sum of the light diversion angle Σ possessed by the X-ray for photography included in the radiation light and the X-ray scattering angle θm in a spectral crystal attains

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