X-ray or gamma ray systems or devices – Specific application – Computerized tomography
Reexamination Certificate
2006-08-08
2006-08-08
Ho, Allen C. (Department: 2882)
X-ray or gamma ray systems or devices
Specific application
Computerized tomography
C378S016000, C378S098900, C378S158000, C378S159000
Reexamination Certificate
active
07088799
ABSTRACT:
The present invention is directed to a method and apparatus for CT data acquisition using a rotatable pre-subject filter having more than one filtering profile to control radiation exposure to a subject. The filter is caused to rotate by a motor and bearing assembly and has one profile used to filter radiation when the radiation source is positioned above a subject and another profile that is used to filter radiation when the radiation source is positioned at a side of the subject.
REFERENCES:
patent: 4277685 (1981-07-01), Covic et al.
patent: 4399550 (1983-08-01), Hauck et al.
patent: 4679221 (1987-07-01), O'Brien et al.
patent: 4947417 (1990-08-01), Hartwell
patent: 5129740 (1992-07-01), Matsushita et al.
patent: 5301108 (1994-04-01), Hsieh
patent: 5396889 (1995-03-01), Ueda et al.
patent: 5485492 (1996-01-01), Pelc
patent: 5568533 (1996-10-01), Kumazaki et al.
patent: 5661774 (1997-08-01), Gordon et al.
patent: 5838758 (1998-11-01), Krug et al.
patent: 5982846 (1999-11-01), Toth et al.
patent: 6226352 (2001-05-01), Salb
patent: 6307918 (2001-10-01), Toth et al.
patent: 6404841 (2002-06-01), Pforr et al.
patent: 6487274 (2002-11-01), Bertsche
patent: 6597758 (2003-07-01), Rosner
patent: 6614878 (2003-09-01), Bogatu et al.
patent: 2003/0195416 (2003-10-01), Toth
Della Penna Michael A.
General Electric Company
Ho Allen C.
Horton Carl B.
Ziolkowski Patent Solutions Group, SC
LandOfFree
Method and apparatus for presenting multiple pre-subject... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and apparatus for presenting multiple pre-subject..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for presenting multiple pre-subject... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3622205