Injector systems and syringe adapters for use therewith

• US 20010011163A1
• Filed: 03/21/2001
• Published: 08/02/2001
• Est. Priority Date: 07/30/1999
• Status: Active Grant

• Current Assignee: Bayer Medical Care Inc. (Bayer AG)
• Original Assignee: Medrad Incorporated (Bayer AG)
• Inventors: Haury, John, Berry, David H., Nolan, William J. Jr., Blue, Christopher J., Spohn, Michael A., McCoppin, Anthony S., Dedig, James Albert, Lazzaro, Frank A., Ashcraft, Robert J. Jr.
• Granted Patent: US 6,716,195 B2
• Time in Patent Office: Days
• US Class Current: 604/154
• 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 includes a syringe carrier adapted to seat at least a portion of the syringe. The syringe carrier includes at least one rearward facing abutment member to abut at least one forward facing surface on a syringe. The syringe carrier includes an opening therein to allow a drive member of an injector to communicate forward force to the plunger through abutment without connective engagement between the drive member and the plunger. The adapter further includes a releasable mounting mechanism positioned to the rear of the syringe carrier to mount the adapter in a desired position relative to the front wall of the injector. An adapter includes a first section and a second section that are rotatable relative to each other about a hinge axis generally perpendicular to a longitudinal axis of the adapter. An adapter includes a first section and a second section that are generally the same in construction, the first section and the section being connectable to form a syringe carrier to seat at least a portion of the syringe.

Claims

1. 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 rotatable relative to each other 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.

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 thereof.

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 to provide information to the injector.

7. The adapter of

claim 1

, further comprising at least one syringe abutment member to prevent the syringe from rotating within the adapter.

8. The adapter of

claim 1

wherein the hinge axis is off-center from a center line 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

wherein the syringe comprises 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.

10. The adapter of

claim 1

, further comprising a releasable latch to maintain the first section and the second section in the closed position.

11. 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.

12. The adapter of

claim 11

wherein the syringe comprises a flange disposed on a rearward end thereof, the abutment member operable to abut the syringe flange.

13. The adapter of

claim 12

wherein the abutment member abuts the syringe flange only in the vicinity of the transition from the rearward end of the syringe to the syringe flange.

14. The adapter of

claim 11

wherein the abutment member comprises a resilient material.

15. The adapter of

claim 11

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.

16. The adapter of

claim 15

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.

17. The adapter of

claim 1

wherein at least a portion of the adapter is formed to enable viewing of the syringe.

18. The adapter of

claim 2

wherein the releasable mounting mechanism comprises a plate that is removably attachable to the front wall of the injector.

19. The adapter of

claim 1

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

20. The adapter of

claim 9

wherein the drive member does not connectively engage the plunger.