Marker for exposure side of medical radiograph included with patient identification data
First Claim
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1. Apparatus for marking an undeveloped sheet of radiographic film, comprising:
- (a) projection means including a light source for generating a light path, said light source emitting light having a wavelength that ranges from 1×
10-7 meters to 1×
10-6 meters included therewithin;
(b) mean for controlling the time and intensity of light reaching said sheet of radiographic film;
(c) means defining a recess for receiving said film sheet;
(d) a card bearing patient identification data;
(e) means for positioning a chirally asymmetric symbol in said light path between said card and said sheet of radiographic film;
(f) means for defining a recess for receiving said card; and
(g) projection means for projecting said patient identification data and said symbol onto said undeveloped sheet of radiographic film,whereby said light source illuminates said card and said projection means projects each of said chirally asymmetric symbol and said patient identification data onto said film sheet to form thereon said marker and said patient identification data that become permanently recorded upon development of said film.
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Abstract
A chirally asymmetric marking on a sheet of radiographic film, positively identifies the side of the film sheet facing the front of an x-ray cassette during radiographic exposure. The marking is permanent and is accomplished automatically in an inexpensive, convenient and highly reliable manner.
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Citations
17 Claims
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1. Apparatus for marking an undeveloped sheet of radiographic film, comprising:
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(a) projection means including a light source for generating a light path, said light source emitting light having a wavelength that ranges from 1×
10-7 meters to 1×
10-6 meters included therewithin;(b) mean for controlling the time and intensity of light reaching said sheet of radiographic film; (c) means defining a recess for receiving said film sheet; (d) a card bearing patient identification data; (e) means for positioning a chirally asymmetric symbol in said light path between said card and said sheet of radiographic film; (f) means for defining a recess for receiving said card; and (g) projection means for projecting said patient identification data and said symbol onto said undeveloped sheet of radiographic film, whereby said light source illuminates said card and said projection means projects each of said chirally asymmetric symbol and said patient identification data onto said film sheet to form thereon said marker and said patient identification data that become permanently recorded upon development of said film. - View Dependent Claims (2, 3, 4, 5)
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6. Apparatus for marking an undeveloped sheet of radiographic film, comprising:
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(a) projection means including a light source for generating a light path, said light source emitting light having a wavelength that ranges from 1×
10-7 meters to 1×
10-6 meters included therewithin;(b) means for controlling the time and intensity of light reaching said sheet of radiographic film; (c) means defining a recess for receiving said film sheet; (d) an overlay comprised of a sheet of rigid material, said overlay containing a transparent or open window having a chirally asymmetric symbol disposed therewithin and being positioned in the light path between the light source and the film sheet; (e) a card, positioned in said path between said light source and said film sheet, said card bearing patient identification data; and (f) means for defining a recess for receiving said card, whereby said projection means projects each of said chirally asymmetric symbol and said patient identification data onto said film sheet to form thereon a marker and said patient identification data that become permanently recorded upon development of said film. - View Dependent Claims (7, 8, 9)
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10. Apparatus for marking an undeveloped sheet of radiographic film, comprising:
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(a) projection means including a light source for generating a light path, said light source emitting light having a wavelength that ranges from 1×
1031 7 meters to 1×
10-6 meters included therewithin;(b) means for controlling the time and intensity of light reaching said film sheet; (c) means defining a recess for receiving said film sheet; (d) a card, positioned in the light path between the light source and the film sheet, said card bearing patient identification data and a chirally asymmetric symbol; and (e) means defining a recess for receiving said card, whereby said projection means projects each of said chirally asymmetric symbol and said patient identification data onto said film sheet to form thereon a marker and said patient identification data that become permanently recorded upon development of said film. - View Dependent Claims (11)
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12. Apparatus to project a chirally asymmetric marker onto an undeveloped sheet of radiographic film, comprising:
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(a) projection means including a light source for generating a light path, said light source emitting light having a wavelength that ranges from 1×
1031 7 meters to 1×
10-6 meters included therewithin;(b) means for controlling the time and intensity of light reaching said film sheet; (c) means defining a recess for receiving said film sheet; (d) a card bearing patient identification data, and a chirally asymmetric symbol; and (e) means defining a recess for receiving said card; said light source being operative to illuminate said card and said projection means being operative to project each of said chirally asymmetric symbol and said patient identification data onto said film sheet to form thereon a marker and said patient identification data that become permanently recorded upon development of said film.
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13. Apparatus for marking an undeveloped sheet of radiographic film, comprising:
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(a) a chirally asymmetric symbol comprising light emitting diodes; (b) means for electronically generating said symbol; and (c) means defining a recess for receiving said sheet of radiographic film, whereby said chirally asymmetric symbol is projected onto said film sheet to form thereon a marker that becomes permanently recorded upon development of said film sheet. - View Dependent Claims (14)
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15. Apparatus for marking an undeveloped sheet of radiographic film, comprising:
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(a) projection means including a light source for generating a light path, said light source emitting light having a wavelength that ranges from 1×
1031 7 meters to 1×
10-6 meters included therewithin;(b) a liquid crystal display adapted to form a chirally asymmetric symbol, said display being positioned between said light source and said film sheet; (c) means for electronically actuating said display to generate said symbol; and (d) a recess for receiving said sheet of radiographic film; whereby said symbol is projected onto said film sheet to form thereon a marker that becomes permanently recorded upon development of said film sheet. - View Dependent Claims (16, 17)
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Specification