Radiopharmaceutical pig and transportation apparatus

• US 6,586,758 B2
• Filed: 06/11/2001
• Issued: 07/01/2003
• Est. Priority Date: 06/11/2001
• Status: Active Grant

• Current Assignee: Biodex Medical Systems Incorporated
• Original Assignee: Biodex Medical Systems Incorporated
• Inventors: Martin, Matthew R.
• Primary Examiner(s): Tran, Huan
• Application Number:
  US09/878,502
• Publication Number:
  US 20020195575A1
• Time in Patent Office: 750 Days
• Field of Search: 250/505.1, 250/506.1, 250/507.1, 250/515.1, 294/69, 294/28, 976/DIG.351, 976/DIG.350, 600/5
• US Class Current: 250/515.1
• CPC Class Codes: A61M 5/1785 comprising radioactive shield means syringe shields or holders for storage of radioactive sources G21F5/018
• CPC Class Codes: G21F 5/018 Syringe shields or holders syringe shielding for applying radioactive material to the body A61M5/1785
• CPC Class Codes: Y10T 29/49826 Assembling or joining
• CPC Class Codes: Y10T 29/49904 Assembling a subassembly, then assembling with a second subassembly

Abstract

An apparatus and method for transporting radiopharmaceutical substances. The apparatus comprises a radiation shielding pig having an elongated sidewall that extends between two ends and that defines an elongated, interior chamber. The sidewall is thinner than each of the ends. A radiation shield defines at least one cavity. The shield has two open ends and a central area between the open ends that is thicker than each of the two open ends. Also, a method of assembling and disassembling the apparatus includes, placing a syringe filled with a radiopharmaceutical substance into the pig; placing the pig containing the filled syringe in the radiation shield; placing the pig and the shield into an ammunition can for transporting the radioactive substance contained in the syringe.

Claims

1. A radiopharmaceutical transportation apparatus comprising:

a radiation shielding pig having an elongated sidewall that extends between two closed ends and defines an elongated, interior chamber, the sidewall being thinner than each of the closed ends; and

a radiation shield, having a length and a width, that defines a cavity, at least a portion of the radiation shielding pig being capable of fitting within the cavity, the radiation shield having an open end having an open end width, another end opposite said open end having another end width and a central area between the two ends, wherein said central area has a width that is wider than one of said end widths.

2. The apparatus according to claim 1 wherein said another end is also open.

3. The apparatus according to claim 1 wherein said central area width is wider than both end widths.

4. The apparatus according to claim 1, further comprising a syringe containing a radioactive substance, the syringe being situated within the chamber of the pig.

5. The apparatus according to claim 1, wherein at least one of the pig and the shield are comprised of a radiation penetration resistant material selected from a group consisting of elemental lead, tungsten and steel.

6. The apparatus according to claim 1, wherein the pig has an outer shell selected from at least one of a plastic and a metal.

7. The apparatus according to claim 1, wherein the pig is configured in two selectively mateable sections.

8. The apparatus according to claim 7, wherein the two mateable sections are threaded.

9. The apparatus of claim 1, wherein the radiation shield further comprises a contour that converges toward each of the two open ends from the central area.

10. The apparatus according to claim 1, wherein the cavity is configured to accommodate a plurality of radiation resistant pigs, each pig being selectively situated within the cavity of the shield.

11. The apparatus according to claim 1, further comprising a container into which are placed the pig and the shield and wherein a weight of the pig, the shield and the container is at most about fifty pounds.

12. The apparatus according to claim 1, further comprising a container into which are placed the pig and the shield.

13. The apparatus according to claim 12, wherein foam selected from at least one of high density polyurethane foam and high density polyethylene foam is used to secure the pig and shield within said container in their relative positions with respect to each other.

14. The apparatus according to claim 12, further comprising a bracket arranged and configured to support the radiation shield in the ammunition can.

15. The apparatus according to claim 1, wherein the closed ends of the radiation shielding pig protrude beyond both of the ends of said radiation shield simultaneously.

16. The apparatus according to claim 2 further comprising a sheath configured to fit within said interior chamber of said pig and to receive said syringe.

17. A method of assembling a radiation shielding pig comprising:

placing a syringe with a radiopharmaceutical substance that emits a defined amount of radioactivity into a pig, said pig having an elongated sidewall that extends between two closed ends and defines an elongated interior chamber, the sidewall being thinner than each of the two closed ends;

placing the radioactive shielding pig containing the filled syringe into a cavity of a radiation shield, at least a portion of the radiation shielding pig being within the cavity, the radiation shield having an open end having a width, another end opposite said open end and having another end width, and a central area, having a central area width, between the two ends, the central area width being greater than the width of one of the ends.

18. The method according to claim 17, further comprising:

placing the pig and the shield into a container; and

,

fastening the container for transporting the radioactive substance contained in the syringe.

19. The method according to claim 17, further comprising extending the closed ends of the pig to protrude through each of the ends of the shield.

20. A method of disassembling a radiopharmaceutical transportation apparatus comprising:

unfastening a container that houses a radiation shielding pig, said pig having an elongated sidewall that extends between two closed ends and that defines an elongated, interior chamber into which a syringe containing a radioactive substance is situated, the sidewall being thinner than each of the two closed ends; and

removing the pig from a cavity of a radiation shield, at least a portion of the radiation shielding pig being within the cavity, the radiation shield having two open ends and a central area between the two open ends, the central area being thicker than each of the two open ends.

21. A method of transporting a radiopharmaceutical transportation apparatus comprising:

transporting a container from a first location to a distal location, said container housing a radiation shielding pig, having an elongated sidewall that extends between two closed ends and defines an elongated interior chamber, the sidewall being thinner than each of the two closed ends;

said container also housing a radiation shield having a cavity and into whose cavity the pig is placed, said cavity extending between two open ends such that the two closed ends of the radiation shielding pig protrude beyond both of the open ends of said radiation shield simultaneously.