Patent Number: 
Section: claims

1. A container for housing at least one needle pre-loaded with implantable radioactive material, said container comprising: a first portion which comprises a radiation shielding material;  a second portion which fits inside said first portion and is specially adapted to retain said at least one needle in said second portion and resist movement of said at least one needle relative to said second portion, whereby the radiation shielding material of said first portion contains within the container at least some of the radiation emitted by the radioactive material in the at least one needle. 2. A container as claimed in  claim 1 , wherein said second portion comprises at least one sleeve, each said sleeve being adapted for retaining at least one needle therein to resist movement of said at least one needle relative to said second portion. claim 1 3. A container as claimed in  claim 2 , wherein each said sleeve comprises structure for aligning a plurality of needles in said at least one sleeve. claim 2 4. A container as claimed in  claim 1 , wherein said second portion comprises a means for releasably securing said at least one needle in the at least one sleeve. claim 1 5. A container as claimed in  claim 1 , wherein said second portion comprises a film which is positioned to secure said at least one needle in said second portion to thereby resist movement of said at least one needle relative to said second portion. claim 1 6. A container as claimed in  claim 1 , wherein the second portion comprises a radiation shielding material. claim 1 7. A container as claimed in  claim 5 , wherein said film comprises a radiation shielding material. claim 5 8. A container as claimed in  claim 5 , wherein said second portion comprises at least one sleeve, each said sleeve being adapted for retaining at least one needle therein to resist movement of said at least one needle relative to said second portion. claim 5 9. A container as claimed in  claim 8 , wherein each said sleeve comprises structure for aligning a plurality of needles in said at least one sleeve. claim 8 10. A container as claimed in  claim 9 , wherein said second portion comprises a radiation shielding material. claim 9 11. A container as claimed in  claim 10 , wherein said second portion comprises a means for releasably securing said at least one needle in the at least one sleeve. claim 10 12. A container as claimed in  claim 11 , wherein said film comprises a radiation shielding material. claim 11 13. A container as claimed in  claim 11 , wherein said means for releasably securing said at least one needle in the at least one sleeve is selected from a friction fit or a form fit between said at least one sleeve and said at least one needle, and a mechanical fastener. claim 11 14. A container as claimed in  claim 13 , wherein the at least one sleeve is formed to provide either a friction fit with a portion of said at least one needle or a form fit with the at least one needle. claim 13 15. A container as claimed in  claim 9 , further comprising structure for closing said first portion of said container with said second portion of said container housed within said first portion. claim 9 16. A container as claimed in  claim 15 , wherein said second portion of said container is removable from said first portion of said container to facilitate removal of said at least one needle from said container for use. claim 15 17. A container as claimed in  claim 1 , wherein said second portion of said container is removable from said first portion of said container to facilitate removal of said at least one needle from said container for use. claim 1 18. A container as claimed in  claim 17 , wherein said second portion comprises at least one sleeve, each said sleeve being adapted for retaining at least one needle therein to resist movement of said at least one needle relative to said second portion. claim 17 19. A container as claimed in  claim 18 , wherein the second portion comprises a radiation shielding material. claim 18 20. A container as claimed in  claim 19 , wherein said second portion comprises a means for releasably securing said at least one needle in the at least one sleeve. claim 19 21. A container as claimed in  claim 20 , wherein said means for releasably securing said at least one needle in the at least one sleeve is selected from a friction fit or a form fit between said at least one sleeve and said at least one needle, and a mechanical fastener. claim 20 22. A container as claimed in  claim 20 , wherein the at least one sleeve is formed to provide either a friction fit with a portion of said at least one needle or a form fit with the at least one needle. claim 20 23. A container as claimed in  claim 20 , wherein each said sleeve comprises structure for aligning a plurality of needles in said at least one sleeve. claim 20 24. A container as claimed in  claim 21 , said second portion comprises a film which is positioned to secure said at least one needle in said second portion to thereby resist movement of said at least one needle relative to said second portion. claim 21