Syringe adapters for use with an injector

• US 6,716,195 B2
• Filed: 03/21/2001
• Issued: 04/06/2004
• Est. Priority Date: 07/30/1999
• Status: Expired due to Fees

• Current Assignee: Bayer Medical Care Inc. (Bayer AG)
• Original Assignee: Medrad Incorporated (Bayer AG)
• Inventors: McCoppin, Anthony S., Haury, John, Berry, David H., Nolan, William J. Jr., Blue, Christopher J., Spohn, Michael A., Dedig, James Albert, Lazzaro, Frank A., Ashcraft, Robert J. Jr.
• Primary Examiner(s): Casler, Brian L.
• Assistant Examiner(s): Sirmons, Kevin C.
• Application Number:
  US09/814,138
• Publication Number:
  US 20010011163A1
• Time in Patent Office: 1,112 Days
• Field of Search: 604/151, 604/154, 604/131, 604/152, 604/181, 604/187, 604/136, 604/137, 128/DIG.1, 600/432, 222/327, 222/390, 222/326
• US Class Current: 604/131
• CPC Class Codes: A61M 5/1456 with a replaceable reservoir comprising a piston rod to be moved into the reservoir, e.g. the piston rod is part of the removable reservoir
• CPC Class Codes: A61M 5/14566 with a replaceable reservoir for receiving a piston rod of the pump

Abstract

An adapter for releasably attaching a syringe to an injector includes a first section and a second section connected about a hinge axis that is generally perpendicular to a longitudinal axis of the adapter. The first section and the second section are rotatable about the hinge axis between an open position to allow loading of the syringe into the adapter from a position to the rear of the hinge axis and a closed position to retain the syringe therein. The hinge axis is preferably off-center from the longitudinal axis of the adapter and the adapter further includes a releasable mounting mechanism positioned on a rearward end of the adapter to mount the adapter in a desired position relative to the front wall of the injector.

Claims

1. An adapter for releasably attaching a syringe to an injector, the syringe comprising a body defining an open rear end and a plunger disposed therein, the plunger having a handle attached thereto and extending out of the rear end of the syringe, and the injector comprising a front wall, an opening formed in the front wall and a drive member reciprocally mounted in the injector, the adapter comprising:

a first section;

a second section, the first section and the second section being rotatably connected about a hinge axis generally perpendicular to a longitudinal axis of the adapter, the first section and the second section being rotatable about the hinge axis between an open position to allow loading of the syringe into the adapter and a closed position to retain the syringe therein; and

a guide member formed in one or both of the first and second sections for guiding the movement of the handle of the syringe.

2. The adapter of claim 1, further comprising a releasable mounting mechanism to mount the adapter in a desired position relative to the front wall of the injector.

3. The adapter of claim 2 wherein the releasable mounting mechanism is disposed on a rearward end of the adapter.

4. The adapter of claim 2 wherein the releasable mounting mechanism comprises one or more flanges that cooperate with the injector to mount the adapter on the injector.

5. The adapter of claim 2, further comprising a sealing flange positioned forward of the releasable mounting mechanism to abut the front wall of the injector.

6. The adapter of claim 1, further comprising indicia disposed on the first section or the second section to provide information to the injector.

7. The adapter of claim 1, further comprising at least one syringe abutment member formed on one or both of the first and second sections to prevent the syringe from rotating within the adapter.

8. The adapter of claim 1 wherein the hinge axis is off-center from the longitudinal axis of the adapter so that force experienced during an injection tends to maintain the first section and the second section in the closed position.

9. The adapter of claim 1, further comprising a releasable latch to maintain the first section and the second section in the closed position.

10. The adapter of claim 1, further comprising at least one rearward facing abutment member operable to abut at least a portion of a forward facing surface associated with the syringe.

11. The adapter of claim 10 wherein the abutment member comprises a resilient material.

12. The adapter of claim 10 wherein the syringe comprises a syringe neck associated with a forward end thereof, the syringe neck and the forward end of the syringe defining a transition region therebetween, the abutment member operable to abut the transition region.

13. The adapter of claim 12 wherein the abutment member abuts the transition region only in the vicinity of the transition from the forward end of the syringe to the syringe neck.

14. The adapter of claim 1 wherein at least a portion of the adapter is formed to enable viewing of the syringe.

15. The adapter of claim 1 wherein the syringe is loaded into the adapter from a position to the rear of the hinge axis.

16. The adapter of claim 1 wherein the drive member does not connectively engage the plunger.

17. An adapter for releasably attaching a syringe comprising a plunger to an injector comprising a front wall, an opening formed in the front wall and a drive member reciprocally mounted in the injector, the adapter comprising:

a first section; and

a second section, the first section and the second section being connected about a hinge axis that is generally perpendicular to a longitudinal axis of the adapter, the first section and the second section being rotatable about the hinge axis between an open position to allow loading of the syringe into the adapter from a position to the rear of the hinge axis and a closed position to retain the syringe therein.

18. The adapter of claim 17, further comprising a releasable mounting mechanism to mount the adapter in a desired position relative to the front wall of the injector.

19. The adapter of claim 18 wherein the releasable mounting mechanism is disposed on a rearward end of the first section or the second section.

20. The adapter of claim 18, further comprising a sealing flange positioned forward of the releasable mounting mechanism to abut the front wall of the injector.

21. The adapter of claim 18 wherein the releasable mounting mechanism comprises one or more flanges that cooperate with the injector to mount the adapter on the injector.

22. The adapter of claim 17, further comprising indicia disposed on the first section or the second section to provide information to the injector.

23. The adapter of claim 17, further comprising at least one syringe abutment member formed on one or both of the first and second sections to prevent the syringe from rotating within the adapter.

24. The adapter of claim 17 wherein the hinge axis is off-center from the longitudinal axis of the adapter so that force experienced during an injection tends to maintain the fast section and the second section in the closed position.

25. The adapter of claim 17 wherein the syringe comprises a body having a plunger disposed therein, and a handle attached to the plunger and extending out of the rear of the syringe, the adapter further comprising a guide member to guide the movement of the handle of the syringe.

26. The adapter of claim 25 wherein the drive member does not connectively engage the plunger.

27. The adapter of claim 17, further comprising a releasable latch to maintain the first section and the second section in the closed position.

28. The adapter of claim 17, further comprising at least one rearward facing abutment member operable to abut at least a portion of a forward facing surface associated with the syringe.

29. The adapter of claim 28 wherein the abutment member comprises a resilient material.

30. The adapter of claim 28 wherein the syringe comprises a syringe neck associated with a forward end thereof, the syringe neck and the forward end of the syringe defining a transition region therebetween, the abutment member operable to abut the transition region.

31. The adapter of claim 30 wherein the abutment member abuts the transition region only in the vicinity of the transition from the forward end of the syringe to the syringe neck.

32. The adapter of claim 17 wherein at least a portion of the adapter is formed to enable viewing of the syringe.

33. An adapter for releasably attaching a syringe comprising a plunger to an injector comprising a front wall, an opening formed in the front wall and a drive member reciprocally mounted in the injector, the adapter comprising:

a first section;

a second section connected to the first section about a hinge axis that is generally perpendicular to and off-center from a longitudinal axis of the adapter to substantially maintain the first section and the second section in a closed position during an injection procedure, the first section and the second section being rotatable about the hinge axis between an open position to allow loading of the syringe into the adapter and the closed position to retain the syringe therein; and

at least one indicator disposed on the first section or the second section to provide information to the injector.

34. The adapter of claim 33, further comprising a releasable mounting mechanism to mount the adapter in a desired position relative to the front wall of the injector.

35. The adapter of claim 34 wherein the releasable mounting mechanism is disposed on a rearward end of the first section or the second section.

36. The adapter of claim 34 wherein the releasable mounting mechanism comprises one or more flanges that cooperate with the injector to mount the adapter on the injector.

37. The adapter of claim 34, further comprising a drip flange positioned forward of the releasable mounting mechanism to abut the front wall of the injector.

38. The adapter of claim 33 wherein the at least one indicator comprises a detent or a notch.

39. The adapter of claim 33, further comprising at least one syringe abutment member formed on one or both of the first and second sections to prevent the syringe from rotating within the adapter.

40. The adapter of claim 33 wherein the syringe plunger comprises an extension rod attached thereto and extending out of the rear of the syringe, the adapter further comprising a guide member to guide the movement of the extension rod of the syringe plunger.

41. The adapter of claim 40 wherein the drive member does not connectively engage the plunger.

42. The adapter of claim 33, further comprising a releasable latch to maintain the first section and the second section in the closed position.

43. The adapter of claim 33, further comprising at least one rearward facing abutment member operable to abut at least a portion of a forward facing surface associated with the syringe.

44. The adapter of claim 43 wherein the abutment member comprises a resilient material.

45. The adapter of claim 43 wherein the syringe comprises a syringe neck associated with a forward end thereof, the syringe neck and the forward end of the syringe defining a transition region therebetween, the abutment member operable to abut the transition region.

46. The adapter of claim 45 wherein the abutment member abuts the transition region only in the vicinity of the transition from the forward end of the syringe to the syringe neck.

47. The adapter of claim 33 wherein at least a portion of the adapter is formed to enable viewing of the syringe.

48. The adapter of claim 33 wherein the hinge axis is positioned above the longitudinal axis.

49. The adapter of claim 33 wherein the syringe is loaded into the adapter from a position to the rear of the hinge axis.