Capsule for interstitial implants
First Claim
1. A seed for implanting radiation-emitting material within a living body, comprising:
- radiation-emitting material; and
a container means for sealingly enclosing said radiation-emitting material, including a tubular body of substantially uniform wall thickness having at least one open end and an end cap of wall thickness not substantially greater than that of said tubular body closing said open end, said end cap having an end wall and a generally tubular skirt portion depending from the periphery of said end wall and terminating in a free end, said skirt portion being at least partially received in the open end of said tubular body so as to engage said tubular body, said skirt portion and said tubular body interfitting and joined to each other to form a fluid-tight seal, so as to prevent contact between bodily fluids and said radiation-emitting material in said container.
1 Assignment
0 Petitions
Accused Products
Abstract
A seed for implanting radioactive material within the living body of a recipient which contains radioactive material which emits therapeutic radiation to treat a specific localized area of the recipient'"'"'s body. A capsule, which sealingly encloses the radioactive material, preventing contact with the recipient'"'"'s body fluid and tissue, includes a generally cylindrical body portion having a pair of open ends. End members of a wall thickness substantially that of the cylindrical body close the open ends, and include an end wall and a generally tubular skirt portion extending therefrom. The skirt portion and the ends of the cylindrical body are deformably joined together by welding, crimping, peening or other cold flow metal treatment, to form a hermetic seal between the end cap and cylindrical body. Also disclosed is a cylindrical plug-like coupling member which joins the pair of seeds in end-to-end coaxial relationship. Each end of the coupling member is received in a socket-like cavity formed in the hollow interior of one end member.
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Citations
18 Claims
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1. A seed for implanting radiation-emitting material within a living body, comprising:
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radiation-emitting material; and a container means for sealingly enclosing said radiation-emitting material, including a tubular body of substantially uniform wall thickness having at least one open end and an end cap of wall thickness not substantially greater than that of said tubular body closing said open end, said end cap having an end wall and a generally tubular skirt portion depending from the periphery of said end wall and terminating in a free end, said skirt portion being at least partially received in the open end of said tubular body so as to engage said tubular body, said skirt portion and said tubular body interfitting and joined to each other to form a fluid-tight seal, so as to prevent contact between bodily fluids and said radiation-emitting material in said container. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A seed for implanting radiation-emitting material within a living body, comprising:
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radiation-emitting material; a tubular body enclosing said radiation-emitting material, said tubular body having a substantially uniform wall thickness and at least one open end; and a closure member having a wall of thickness not substantially greater than that of said tubular body, said wall of said closure member having an end portion and a generally tubular skirt portion depending from the periphery of the end portion and terminating in a free end; and said closure member being interfitted within the end of said tubular body and joined thereto by welding to form;
a fluid-tight seal, so as to prevent contact between bodily fluids and said radiation-emitting material disposed within said tubular body. - View Dependent Claims (12, 13, 14)
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15. A seed for implanting radiation-emitting material within a living body, comprising:
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radiation-emitting material; a tubular body enclosing said radiation-emitting material, said tubular body having a substantially uniform wall thickness and at least one open end; and a closure member having a wall of thickness not substantially greater than that of said tubular body, said wall of said closure member having an end portion and a generally tubular skirt portion depending from the periphery of the end portion and terminating in a free end; and said closure member being interfitted within the end of said tubular body and joined thereto by mechanical deformation to form a fluid-tight seal, so as to prevent contact between bodily fluids and said radiation-emitting material disposed within said tubular body. - View Dependent Claims (16, 17, 18)
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Specification