EP 0685200 B1 20020828 - X-ray diagnostic apparatus having a plurality of focal points and a movable primary collimator
Title (en)
X-ray diagnostic apparatus having a plurality of focal points and a movable primary collimator
Title (de)
Röntgenuntersuchungsgerät mit mehreren Brennflecken und verschiebarer Primärstrahlenblende
Title (fr)
Appareil de radiodiagnostic avec plusieurs foyers et un collimateur primaire déplaçable
Publication
Application
Priority
SE 9401904 A 19940602
Abstract (en)
[origin: EP0685200A1] The object (37) under examination is compressed between a plate (33) and the table (3) for irradiation with the prim. X-ray beam from the rotatable anode (4) which has two focal-spot tracks (6, 7) inclined at the same angle and impacted by electrons from four cathodes (8-11). The edges (34, 35) of the beam are defined by coarse and fine apertures (19, 22). The cathodes produce four focal spots (12-15) spaced apart on the anode rim and selected by straight-line movement of the screen (2) contg. the fine aperture (22), by means of the stepping motor (28) and a sighting lamp (31) and mirror (32). <IMAGE>
IPC 1-7
IPC 8 full level
A61B 6/00 (2006.01); G21K 1/04 (2006.01); H01J 35/24 (2006.01); H05G 1/52 (2006.01)
CPC (source: EP US)
G21K 1/04 (2013.01 - EP US); H01J 35/24 (2013.01 - EP US); H05G 1/52 (2013.01 - EP US); H01J 2235/068 (2013.01 - EP US)
Citation (examination)
- DE 4410757 A1 19950119 - SIEMENS AG [DE]
- DE 3136806 A1 19830331 - SIEMENS AG [DE]
- DE 4323928 A1 19940511 - HEWLETT PACKARD CO [US]
Designated contracting state (EPC)
DE FR GB IT SE
DOCDB simple family (publication)
EP 0685200 A1 19951206; EP 0685200 B1 20020828; DE 59510340 D1 20021002; FI 116193 B 20051014; FI 952725 A0 19950602; FI 952725 A 19951203; JP 3764510 B2 20060412; JP H07327966 A 19951219; SE 9401904 D0 19940602; US 5544216 A 19960806
DOCDB simple family (application)
EP 95105219 A 19950406; DE 59510340 T 19950406; FI 952725 A 19950602; JP 13447195 A 19950531; SE 9401904 A 19940602; US 45070695 A 19950525