Power Injector Syringe Clamp Assembly with RFID Antenna

• US 20110130720A1
• Filed: 08/17/2009
• Published: 06/02/2011
• Est. Priority Date: 08/19/2008
• Status: Active Grant

• Current Assignee: Liebel-Flarsheim Company (Mallinckrodt plc)
• Original Assignee: Mallinckrodt Incorporated (Mallinckrodt plc)
• Inventors: Bruce, John K., Strobl, Geoffrey S., Gibson, Chad M.
• Granted Patent: US 8,562,563 B2
• Time in Patent Office: Days
• US Class Current: 604/131
• CPC Class Codes: A61M 2005/14553 comprising a pressure jacket
• CPC Class Codes: A61M 2205/6054 Magnetic identification systems
• CPC Class Codes: A61M 5/007 for contrast media
• CPC Class Codes: A61M 5/14546 Front-loading type injectors
• CPC Class Codes: A61M 5/1458 Means for capture of the plunger flange

Abstract

A power injector syringe clamp assembly (300) is disclosed. This clamp assembly (300) includes a first clamp member (302) and a second clamp member (312), where at least one of these clamp members (302, 312) is movable to provide open and closed configurations for the clamp assembly (300). The clamp assembly (300) also includes at least one RFID reader antenna for communicating with at least one RFID tag (336) on a power injector syringe (330), at least when positioned within the clamp assembly (300).

Claims

1. A power injector syringe clamp assembly, comprising:

a first clamp member that is movable to at least assist in defining open and closed configurations for said clamp assembly, wherein said first clamp member comprises a first RFID reader antenna on said first clamp member.

2. The assembly of claim 1, wherein said first clamp member is pivotable between said first and second positions.

3. The assembly of claim 1, further comprising a first pivot pin that is electrically conductive and that is electrically interconnected with said first RFID reader antenna, wherein said first clamp member is mounted on said first pivot pin.

4. The assembly of claim 3, further comprising a first electrical contact that is movable, that is biased into engagement with said first pivot pin, and that is electrically interconnected with said first RFID reader antenna.

5. The assembly of claim 3, wherein said first pivot pin comprises a first insulator section and a first pair of conductive sections, wherein said first insulator section is disposed between members of said first pair of conductive sections proceeding along a length dimension of said first pivot pin, wherein said first RFID reader antenna comprises first and second antenna sections that are spaced, wherein said first antenna section is electrically interconnected with one said member of said first pair of conductive sections, and wherein said second antenna section is electrically interconnected with another said member of said first pair of conductive sections.

6. The assembly of claim 1, further comprising a second clamp member.

7. The assembly of claim 6, wherein said second clamp member is maintained in a fixed position.

8. The assembly of claim 6, wherein said second clamp member is movable to at least assist in defining said open and closed configurations for said clamp assembly.

9. The assembly of claim 6, wherein said second clamp member is pivotable.

10. The assembly of claim 6, wherein said second clamp member comprises at least one RFID antenna, wherein said assembly further comprises a second pivot pin that is electrically conductive, and that is electrically interconnected with said at least one RFID reader antenna of said second clamp member, wherein said second clamp member is mounted on said second pivot pin.

11. The assembly of claim 10, further comprising a second electrical contact that is movable, that is biased into engagement with said second pivot pin, and that is electrically interconnected with said at least one RFID reader antenna of said second clamp member.

12. The assembly of claim 10, wherein said second pivot pin comprises a second insulator section and a second pair of conductive sections, wherein said second insulator section is disposed between members of said second pair of conductive sections proceeding along a length dimension of said second pivot pin, wherein said at least one RFID reader antenna of said second clamp member comprises third and fourth antenna sections that are spaced, wherein said third antenna section is electrically interconnected with one said member of said second pair of conductive sections, and wherein said fourth antenna section is electrically interconnected with another said member of said second pair of conductive sections.

13. The assembly of claim 6, wherein said first and second clamp members are each movable about a common axis.

14. The assembly of claim 6, wherein said first and second clamp members are disposed in opposing relation.

15. The assembly of claim 6, wherein one part of said first RFID reader antenna is on said first clamp member and another part of said first RFID reader antenna is on said second clamp member.

16. The assembly of claim 6, further comprising a second RFID reader antenna on said second clamp member.

17. The assembly of claim 16, wherein said first and second RFID reader antennas are disposed on respective surfaces of said first and second clamp members that project toward a barrel of a power injector syringe when positioned within said clamp assembly and with said clamp assembly being in said closed configuration.

18. The assembly of claim 16, wherein said first and second RFID reader antennas are disposed on respective surfaces of said first and second clamp members that project toward a flange of a power injector syringe when positioned within said clamp assembly and with said clamp assembly being in said closed configuration.

19. The assembly of claim 16, wherein said first and second RFID reader antennas are autonomous.

20. The assembly of claim 16, wherein said first and second RFID reader antennas collectively function as a single RFID antenna when said clamp assembly is in said closed configuration.

21. The assembly of claim 1, wherein said first RFID reader antenna is disposed on a surface of said first clamp member that projects toward a barrel of a power injector syringe when positioned within said clamp assembly and with said clamp assembly being in said closed configuration.

22. The assembly of claim 1, wherein said first RFID reader antenna is disposed on a surface of said first clamp member that projects toward a flange of a power injector syringe when positioned within said clamp assembly and with said clamp assembly being in said closed configuration.

23. The assembly of claim 1, further comprising a flexible connector interconnected with said first RFID reader antenna.

24. The assembly of claim 1, further comprising a first electrical contact that is disposed within a path of motion of said first clamp member, wherein said first electrical contact is spaced from said first RFID reader antenna when said first clamp member is in a first position, and wherein said first electrical contact engages said first RFID reader antenna when said first clamp member is in a second position.

25. The assembly of claim 1, wherein a power injector syringe may be installed in and removed from said power injector syringe clamp assembly when in its said open configuration, and wherein an installed power injector syringe is restrained by said power injector syringe clamp assembly when in its said closed configuration.

26. A power injector, comprising:

a power injector syringe comprising a syringe barrel, a plunger disposed within and movable relative to said syringe barrel, and at least one RFID tag;

a syringe plunger drive assembly that comprises a motorized drive source that interacts with said plunger to move said plunger relative to said syringe barrel;

a first clamp member that is movable and that is disposed in at least one of closely-spaced relation to or in contact with said power injector syringe, wherein said first clamp member comprises a first RFID reader antenna.

27. The power injector of claim 26, wherein said plunger is movable along an axial path.

28. The power injector of claim 26, wherein said syringe plunger drive assembly is capable of bi-directional motion.

29. The power injector of claim 26, further comprising a second clamp member.

30. The power injector of claim 26, wherein said at least one RFID tag is on said barrel of said power injector syringe.

31. The power injector of claim 26, wherein said at least one RFID tag is on a flange of said power injector syringe.

32. The power injector of claim 31, wherein said flange extends outwardly relative to said syringe barrel on a proximal end of said power injector syringe.

33. (canceled)