System for X-ray irradiation of blood
First Claim
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1. An X-ray irradiator for providing a uniform dose of X-ray beam irradiation to blood in a transfusion bag, said irradiator comprising in combination,a) a chamber for mounting said transfusion bag;
- b) X-ray tubes mounted on opposed sides of said chamber;
said tubes providing X-ray beams of radiation to said bag from opposite sides of said bag; and
c) said tubes each providing radiation at a same selected energy level to said bag to thereby provide a total radiation energy to said bag which is substantially uniform throughout said bag.
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Abstract
A blood irradiator for providing a uniform dose of X-ray beam irradiation for blood contained within a transfusion bag. A first X-ray tube is positioned to irradiate said bag from one side of the bag, and a second X-ray tube is positioned to irradiate said bag from the opposite side of said bag concurrently with said first bag whereby a uniform dose of X-rays is provided to the blood.
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Citations
10 Claims
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1. An X-ray irradiator for providing a uniform dose of X-ray beam irradiation to blood in a transfusion bag, said irradiator comprising in combination,
a) a chamber for mounting said transfusion bag; -
b) X-ray tubes mounted on opposed sides of said chamber;
said tubes providing X-ray beams of radiation to said bag from opposite sides of said bag; and
c) said tubes each providing radiation at a same selected energy level to said bag to thereby provide a total radiation energy to said bag which is substantially uniform throughout said bag. - View Dependent Claims (2, 3, 4, 5, 9, 10)
a) a cannister for confining said bag to have a uniform maximum thickness measured transverse to the beam radiation from said tubes. -
4. An irradiator as in claim 3 wherein the cannister maintains the maximum thickness of said bag at 4 cm.
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5. An irradiator as in claim 1 wherein said X-ray tubes each provide radiation at 160 kV, and are positioned 23 cm from said bag to irradiate said bag with a surface dose of 2500 rads and an exit dose of 1500 rads.
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9. An X-ray irradiator as in claim 1 further including n ion pump to provide a vacuum in said X-ray tubes.
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10. An X-ray irradiator as in claim 1 wherein
a) the same power supply supplies power to both tubes.
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6. An X-ray irradiator for providing a uniform dose of X-ray beam irradiation to a transfusion bag blood, said bag being in the form of a rectangular box-like container, said irradiator comprising in combination,
a) source of X-ray radiation providing a beam of X-ray to cover a defined vertical area; - and,
b) means for positioning said bag with its thickness dimension perpendicular to said beam to permit said beam to irradiate a first surface of said bag;
c) a support for said bag; and
d) means for rotating said support to cause said beam to irradiate the surface of said bag opposite said first surface.
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7. An X-ray irradiator for providing a uniform dose of X-ray beam irradiation to blood in a transfusion bag which bag is pliable and is contained in a cannister said irradiator comprising in combination,
a) a chamber for receiving said cannister containing mounting said transfusion bag; -
b) first has X-ray tubes mounted to provide irradiation to opposite surfaces of said bag;
c) the irradiation of said tubes effectively combining to provide uniform irradiation to the blood in said bag. - View Dependent Claims (8)
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Specification