Biodegradable glass compositions and methods for radiation therapy
Patent 6379648 Issued on April 30, 2002. Estimated Expiration Date: 
February 1, 2019. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
February 1, 2019. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesThermally stable and crush resistant microporous glass catalyst supports and methods of making Composition and method for radiation synovectomy of arthritic joints Composition and method for radiation synovectomy of arthritic joints Composition and method for radiation synovectomy of arthritic joints Patent #: 5039326 InventorsAssigneeApplicationNo. 241892 filed on 02/01/1999US Classes:424/1.29, Coated, impregnated, or colloidal particulate (e.g., microcapsule, micro-sphere, micro-aggregate, macro-aggregate)252/644, As a source of radiation or heat424/1.37, Radionuclide or intended radionuclide in an organic compound424/451, Capsules (e.g., of gelatin, of chocolate, etc.)424/457, Sustained or differential release424/489, Particulate form (e.g., powders, granules, beads, microcapsules, and pellets)424/490, Coated (e.g., microcapsules)501/33, Beads501/52, And aluminum or beryllium600/3Radioactive substance placed within body (e.g., inhaled, implanted, injected, etc.)ExaminersPrimary: Dudash, DianaAssistant: Sharareh, Shahnam Attorney, Agent or FirmInternational ClassesA61K 051/00A61M 036/14 AbstractA nonradioactive glass in particulate form adapted for radiation therapy in a mammal comprise a biodegradable rare earth-lithium borate glass material of a specified composition which, upon being subjected to an effective amount of neutron irradiation, will produce a beta or gamma emitting radioisotope, the radioisotope being distributed throughout the glass material, the glass upon being introduced into a body fluid for radiation therapy being adapted to react therewith causing the radioisotope to form an insoluble compound on the surface of the glass material which is retained in the glass material and thereby prevented from escaping from the treatment site. Radioactive glasses and methods for carrying out radiation therapy with such radioactive glasses are also disclosed.Other References
Field of SearchParticulate form (e.g., powders, granules, beads, microcapsules, and pellets)Coated (e.g., microcapsules) Capsules (e.g., of gelatin, of chocolate, etc.) Sustained or differential release Coated, impregnated, or colloidal particulate (e.g., microcapsule, micro-sphere, micro-aggregate, macro-aggregate) Radionuclide or intended radionuclide in an organic compound Radioactive substance placed within body (e.g., inhaled, implanted, injected, etc.) Beads And aluminum or beryllium As a source of radiation or heat | |
