Patent Number: 
Section: claims

1. A syringe shield for housing a syringe (24) containing a radioactive drug, the syringe (24) comprising a barrel (26) containing the radioactive drug, a plunger (28) and a tip (34), comprising:a barrel housing (6) comprising a radiation-shielding material, a first open end (8), and a second open end (10), wherein the tip (34) of the syringe (24) is adjacent to or extends out from the second open end (10) when the syringe (24) is housed in the syringe shield (2);a removable cover (12) that is removably connectable to the barrel housing (6) so as to cover the second open end (10), as well as the tip (34) of the syringe (24) when the syringe (24) is housed in the syringe shield (2), and so as to at least partially surround the barrel housing (6), anda plunger housing (16) comprising a radiation shielding material and having a first end (18) that is open and is removably connectable to the removable cover (12) so as to enclose the barrel housing (6) therebetween and, when the syringe (24) is housed in the syringe shield (2), allow the plunger (28) of the syringe (24) to extend through the first open end (8) of the barrel housing (6) and into the plunger housing (16) via the first end (18) of the plunger housing (16). 2. The syringe shield according to claim 1, wherein the plunger (28) of the syringe (24) comprises at least one plunger flange (30, 30′), and the first open end (8) of the barrel housing (6) is shaped to receive at least one plunger flange (30, 30′). 3. The syringe shield according to claim 2, wherein the first open end (8) of the barrel housing (6) is configured to releasably engage with the at least one flange (30, 30′) of the plunger (28). 4. The syringe shield according to claim 3, wherein at least one flange (30, 30′) of the plunger (28) functions as a twist-lock element that, when twisted, is receivable by a twist-lock flange receiver (48, 48′) in the barrel housing (6). 5. The syringe shield according to claim 1, wherein the removable cover (12) is configured to partially surround the barrel housing (6) so as to expose the underside (36) of the barrel housing (6) when the removable cover (12) is removably connected to the barrel housing (6), and wherein the underside (36) of the barrel housing (6) is shaped so as to prevent the barrel housing (6) from rolling when placed on a flat surface. 6. The syringe shield according to claim 5, wherein the underside (36) of the barrel housing (6) is flat. 7. The syringe shield according to claim 1, wherein the removable cover (12) is shaped so as to cover all surfaces of the barrel housing (6), except the underside (36) of the barrel housing (6) and the first open end (8), when the removable cover (12) is removably connected to the barrel housing (6). 8. The syringe shield according to claim 1, wherein the removable cover (12) comprises a puck (38) which comprises a radiation shielding material, wherein the puck (38) covers the second open end (10) of the barrel housing (6) when the removable cover (12) is removably connected to the barrel housing (6). 9. The syringe shield according to claim 1, wherein the removable cover (12) further comprises a handle (44). 10. The syringe shield according to claim 1, wherein the removable cover (12) is shaped so that it is slidably mountable onto the barrel housing (6) by sliding the removable cover (12) in a direction from the second open end (10) towards the first open end (8). 11. The syringe shield according to claim 1, wherein the removable cover (12) is shaped to receive a partially cylindrically shaped barrel housing (6) with a flat underside (36). 12. The syringe shield according to claim 1, wherein the removable cover (12) is shaped as a partially cylindrical shell. 13. The syringe shield according to claim 1, wherein the cover (12) is shaped so that said removable cover (12) can only be removed from the barrel housing (6) by sliding said removable cover (12) in a direction from the first open end (8) towards the second open end (10). 14. The syringe shield according to claim 1, wherein the barrel housing (6) comprises a cylindrical section made of radiation shielding material, and a base providing a flat underside (36). 15. The syringe shield according to claim 1, wherein the plunger housing (16) has an internal surface comprising a radiation shielding material. 16. The syringe shield according to claim 1, wherein the plunger housing (16) further comprises a top cap (22) that comprises a puck (56) of radiation shielding material. 17. The syringe shield according to claim 1, wherein the plunger housing (16) is releasably connectable to the removable cover (12) using a twist-lock assembly. 18. The syringe shield according to claim 1, wherein the plunger housing (16) is releasably connectable to the removable cover (12) and the barrel housing (6) using a twist-lock assembly. 19. The syringe shield according to claim 1, wherein the radiation shielding material comprises tungsten, lead, stainless steel, an aluminum alloy, or a combination thereof. 20. The syringe shield according to claim 1, wherein the radiation-shielding material comprises tungsten. 21. The syringe shield according to claim 1, wherein the syringe shield (2) is dimensioned to receive a syringe (24) containing up to thirty milliliters or up to sixty milliliters of said radioactive drug. 22. The syringe shield according to claim 1, wherein the total weight of the syringe shield (2) is no more than 55 lbs. 23. The syringe shield according to claim 1, wherein said radioactive drug has a radioactivity of up to 1 Ci, and the syringe shield has a radiation-shielding material that provides a shielding that meets the Yellow II label criteria for transportation of radioactive material.