Micro-volumetric blood radioactivity counter
AssigneeSociéTé De Commercialisation Des Produits De La Recherche AppliquéE Socpra Sciences Santé Et Humaines S.E.C.
InventorsLaurence Convert, Jules Cadorette, David Lapointe, Roger Lecomte
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Abstract
A blood counting device comprises a capillary conduit for drawing from a subject in which a radiotracer has previously been injected a quantity of blood in the micro-liter range to produce in the capillary conduit a flow of blood from which beta radiation is emitted. At least one direct beta radiation detector is placed closely adjacent to the capillary conduit. The direct beta radiation detector consists of a semiconductor photodiode which detects the beta radiation from the flow of blood when directly hit by this beta radiation.
Claims10
A blood counting device comprising:
- a shielding enclosure defining therein a U-shaped channel for receiving a capillary conduit adapted to draw from a subject in which a radiotracer has previously been injected a quantity of blood in the micro-liter range to produce in the capillary conduit a flow of blood from which beta radiation is emitted, the U-shaped channel comprising first and second opposite end sections, the generally straight section of the capillary conduit being placed between the first and second sections;
- and
- at least one elongated direct beta radiation detector placed within the enclosure, extending along the generally straight section of the capillary conduit and closely adjacent to the generally straight section of the capillary conduit, wherein the at least one detector consists of a semiconductor photodiode which detects the beta radiation from the flow of blood when directly hit by the beta radiation.
A blood counting device comprising:
- a capillary conduit for drawing from a subject in which a radiotracer has previously been injected a quantity of blood in the micro-liter range to produce in the capillary conduit a flow of blood from which beta radiation is emitted;
- at least one elongated direct beta radiation detector extending along and closely adjacent to a generally straight section of the capillary conduit;
- and
- a shielding enclosure defining therein a U-shaped channel for receiving the capillary conduit, the U-shaped channel comprising first and second opposite end sections, the generally straight section of the capillary conduit being placed between the first and second sections,
- wherein the at least one detector consists of a semiconductor photodiode which detects the beta radiation from the flow of blood when directly hit by the beta radiation.
Dependencies are inferred from the claim text.