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US 12,053,644 B2Granted
Radiation shielding apparatus for implantable radioactive seeds
AssigneeGt Medical Technologies, Inc.
InventorsDavid Brachman, John Baker, Heidi Cole, Adam Turner
Life of this patent
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Abstract
The disclosure is directed to devices for use in radiation therapy. Various configurations of shielding materials within shielding layers, such as for use in shielding radiation from radioactive sources within implanted radioactive carriers, are discussed herein.
Claims19
A carrier system for delivering directional radiation treatment to a tissue site according to a dosimetric plan, the carrier system comprising:
- a biocompatible carrier comprising collagen configured to be placed on an exposed treatment surface of a surgically-created cavity in mammalian tissue;
- and
- a wrapped seed assembly including:
- a plurality of wrapped seeds each comprising:
- a cylindrical radioactive seed;
- and
- a substantially cylindrically shaped apparatus having a length at least as long as the radioactive seed and having a central longitudinal cavity wherein the cylindrical radioactive seed is positioned, wherein the substantially cylindrically shaped apparatus includes a shielding layer extending along the length of the substantially cylindrically shaped apparatus, the shielding layer comprising a high-z material;
- and
- one or more connectors configured to secure and position respective pairs of wrapped seeds in a predetermined spaced-apart arrangement according to the dosimetric plan;
- wherein the wrapped seed assembly, including the plurality of wrapped seeds spaced apart by the one or more connectors, is positioned within the biocompatible carrier according to the dosimetric plan.
7 more elements
A method for preparing a carrier to deliver directional radiation treatment to a tissue site according to a dosimetric plan, the method comprising:
- positioning a wrapped seed assembly within a biocompatible carrier comprising collagen according to a dosimetric plan;
- wherein the wrapped seed assembly includes:
- a plurality of wrapped seeds each comprising:
- a cylindrical radioactive seed;
- and
- a substantially cylindrically shaped apparatus having a length at least as long as the radioactive seed and having a central longitudinal cavity wherein the cylindrical radioactive seed is positioned, wherein the substantially cylindrically shaped apparatus includes a shielding layer extending along the length of the substantially cylindrically shaped apparatus, the shielding layer comprising a high-z material;
- and
- one or more connectors configured to secure and space respective pairs of wrapped seeds according to the dosimetric plan.
5 more elements
Dependencies are inferred from the claim text.