X-ray or gamma ray systems or devices – Source support – Including object support or positioning
Patent
1994-12-14
1995-12-26
Porta, David P.
X-ray or gamma ray systems or devices
Source support
Including object support or positioning
378195, 378197, H05G 102
Patent
active
054794706
ABSTRACT:
An x-ray examination apparatus has a stand composed of at least one upright column, a holder for a curved carrier rotatable around a horizontal axis and connected to the column, an x-ray tube and a receptor being secured to the holder, a fastening means for the stand, and an arm that connects the stand to the fastening means. One end of the arm is rotatable around an axis at the fastening means. The apparatus also includes an examination table that is displaceable at least along a center line. In order to provide an apparatus having a stand that is comparatively simple in structure and that has an extraordinarily large movement range and that can displace the center line of the x-ray tube and receptor between two points on the center line of the examination table that lie comparatively far apart without a table displacement, the fastening means is placed such that the axis thereof does not coincide with the center line of the examination table, and the other end of the arm is rotatably connected to a vertical axis arranged at the column. A mechanism given a rotation of the arm around the axis of the fastening means, turns the stand around the axis at the column such that the center line of the x-ray tube and receptor intersects the center line of the examination table in at least two angular positions of the arm, whereby the stand--as viewed from above--is in axial alignment with the center line of the examination table in the first angular position of the arm and the stand describes an angle with this center line in the second angular position of the arm.
REFERENCES:
patent: 4922512 (1990-05-01), Lajus et al.
patent: 4987585 (1991-01-01), Kidd et al.
patent: 5386453 (1995-01-01), Harrawood et al.
Geenral Electric Brochure for "Advantx L/C" multi-axis cardiovascular imaging system (1989).
Philips Brochure for "Integris BN 3000" and Integris BV 3000 Neurological and Angiographic Radiological Systems (1993).
Siemens Brochure for "ANGIOSTAR" Universal system for film and digital angiography.
Siemens Brochure for "COROSKOP HS" High-speed Angiocardiography System.
Porta David P.
Siemens Elema AB
Wong Don
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