Intracavitational brachytherapy
OwnerBruce S. Horowitzinventor
Life of this patent
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Abstract
A delivery system for intracavitational brachytherapy comprising a body of material which is absorbable in animal tissue and a plurality of radioactive seeds within the body and encapsulated in the body. In one form, the body comprises a hollow exterior wall with a separate central chamber such that the hollow exterior wall will accommodate growth of body tissue such as brain tissue. In another form, the body comprises a solid hollow body having the seeds held in the center of the body that can be inserted in the cavity to be treated. In another form, a flat sheet is attached tangentially to the hollow exterior wall to facilitate placement over the brain.
Claims10
A delivery system for intracavitational brachytherapy comprising:
- a body of a material which is absorbable in animal tissue,
- said body having a completely closed geometrical shape conforming generally with a cavity which is to be treated after removal of a tumor,
- and a plurality of radioactive seeds that are non-absorbable within the body, said body becoming flexible due to absorption as the half-life of the radioactive sources is exceeded and diminishing in size with said cavity.
A delivery system for intracavitational brachytherapy comprising:
- a plurality of radioactive seeds, that are not absorbable in animal tissue, encapsulated by a body of material that is absorbable in animal tissue, said body having a first and a second part, said first part completely encapsulating and isolating said plurality of seeds from adjacent tissue defining a cavity of a tumor, said second part retaining said plurality of seeds in a predetermined, spaced apart, fixed relation with respect to the periphery of said first part, said body diminishing in size due to absorption as the half-life of the radioactive sources is exceeded and diminishing in size along with said cavity.
Dependencies are inferred from the claim text.