US PATENT SUBCLASS 424 / 1.33
.~.~ Delivery to active site involves particle dissolving, degrading, or otherwise releasing of radionuclide

Current as of: June, 1999
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424 /   HD   DRUG, BIO-AFFECTING AND BODY TREATING COMPOSITIONS

1.11  DF  RADIONUCLIDE OR INTENDED RADIONUCLIDE CONTAINING; ADJUVANT OR CARRIER COMPOSITIONS; INTERMEDIATE OR PREPARATORY COMPOSITIONS {11}
1.29  DF  .~ Coated, impregnated, or colloidal particulate (e.g., microcapsule, micro-sphere, micro-aggregate, macro-aggregate) {2}
1.33.~.~ Delivery to active site involves particle dissolving, degrading, or otherwise releasing of radionuclide

DEFINITION

Classification: 424/1.33

Delivery to active site involves particle dissolving, degrading, or otherwise releasing of radionuclide:

(under subclass 1.29) Subject matter in which the particle dissolves, degrades, or otherwise releases the radionuclide or intended radionuclide in order to deliver it to the active site, such as a time release microcapsule.

(1) Note. This subclass is intended to take those compositions which release the radionuclide at a location distant from the target location. Compositions which release the radionuclide within a target cell in the body would not be proper for placement here on that basis.

(2) Note. A particle designed to dissolve, degrade, etc., (e.g., bio-degradable, bio-assimilable) after the diagnosis, treatment, etc., is not proper for placement here on that basis.