Retractable cassette holder for a radiological and radiographic examination apparatus
First Claim
1. In a retractable cassette holder for a radiological and radiographic examination apparatus, said apparatus comprising a patient carrying table, a radioactive source situated opposite a first face of the table for subjecting a zone of the patient to irradiation, a luminance amplifier situated opposite the other face of the table directly below the radioactive source for forming a radiological image of the irradiated zone, and a cassette holder which is retractable so as to be insertable between the second face of the table and the luminance amplifier so as to allow, when it is loaded with a radio sensitive cassette, a radiological image to be formed of the irradiated zone, said cassette holder forms a mobile assembly comprising retracting means for moving said assembly toward and away from said table around said amplifier, means for forming a variable dimension recess in the middle thereof and means for allowing the luminance amplifier to slide inside this recess.
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Accused Products
Abstract
The invention provides a retractable cassette holder for a combined X ray and radiographic examination apparatus. This cassette holder forms a mobile assembly comprising means for forming a recess with variable dimensions in the middle thereof and means for causing the barrel of a luminance amplifier to slide within this recess.
108 Citations
9 Claims
- 1. In a retractable cassette holder for a radiological and radiographic examination apparatus, said apparatus comprising a patient carrying table, a radioactive source situated opposite a first face of the table for subjecting a zone of the patient to irradiation, a luminance amplifier situated opposite the other face of the table directly below the radioactive source for forming a radiological image of the irradiated zone, and a cassette holder which is retractable so as to be insertable between the second face of the table and the luminance amplifier so as to allow, when it is loaded with a radio sensitive cassette, a radiological image to be formed of the irradiated zone, said cassette holder forms a mobile assembly comprising retracting means for moving said assembly toward and away from said table around said amplifier, means for forming a variable dimension recess in the middle thereof and means for allowing the luminance amplifier to slide inside this recess.
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2. The cassette holder as claimed in claim 2, wherein the means for forming the recess comprise two sets of two facing jaws, each of the jaws of a set being able to move in a direction perpendicular to the direction of alignment of the radioactive source with the luminance amoplifier, the directions of movement of each of the two sets being substantially perpendicular to each other.
Specification