Injector systems and syringe adapters for use therewith

• US 20010023336A1
• Filed: 03/21/2001
• Published: 09/20/2001
• Est. Priority Date: 07/30/1999
• Status: Active Grant

• Current Assignee: Bayer Medical Care Inc. (Bayer AG)
• Original Assignee: Medrad Incorporated (Bayer AG)
• Inventors: Spohn, Michael A., McCoppin, Anthony S., Dedig, James Albert, Lazzaro, Frank A., Haury, John, Ashcraft, Robert J. Jr., Berry, David H., Nolan, William J. Jr., Blue, Christopher J.
• Granted Patent: US 6,743,205 B2
• Time in Patent Office: Days
• US Class Current: 604/152
• 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 to an injector, wherein the syringe comprises a body having a forward end and a rearward end, and a plunger slideably positioned within the body, and wherein the injector comprises a front wall, an opening formed in the front wall, and a drive member reciprocally mounted in the injector, the adapter comprising:

a syringe carrier adapted to seat at least a portion of the syringe, the syringe carrier comprising a front end, a rear end and at least one rearward facing abutment member operable to abut at least a portion of a forward facing surface associated with the syringe, the syringe carrier defining an opening therein to allow the drive member of the injector to engage the plunger;

a releasable mounting mechanism associated with the syringe carrier to mount the adapter in a desired position relative to the front wall of the injector; and

at least one syringe retaining mechanism for retaining the syringe within the syringe carrier.

2. The adapter of

claim 1

wherein the syringe further comprises a syringe neck associated with the forward end of the body, the syringe neck and the body defining a transition region therebetween, the abutment member operable to abut a forward facing surface of the transition region.

3. The adapter of

claim 2

wherein the abutment member abuts the transition region only in the vicinity of the transition from the forward end of the body to the syringe neck.

4. The adapter of

claim 1

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

5. The adapter of

claim 4

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

6. The adapter of

claim 1

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

7. The adapter of

claim 1

wherein the releasable mounting mechanism comprises one or more flanges that cooperate with the injector to mount the adapter to the injector.

8. The adapter of

claim 1

, further comprising a sealing flange positioned forward of the releasable mounting mechanism to abut the front wall of the injector.

9. The adapter of

claim 1

, further comprising indicia for providing information to the injector.

10. The adapter of

claim 1

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

11. The adapter of

claim 1

wherein the syringe further comprises a handle attached to the plunger, the handle extending out of the rear of the syringe body, the adapter further comprising a guide member to guide the movement of the handle of the syringe.

12. The adapter of

claim 1

wherein the abutment member comprises a resilient material.

13. The adapter of

claim 1

wherein the at least one syringe retaining mechanism is rotatable around an axis of the adapter between an open position and a closed position.

14. The adapter of

claim 1

wherein the at least one syringe retaining mechanism is slidable along an axis of the adapter.

15. The adapter of

claim 1

wherein the at least one syringe retaining mechanism comprises at least one extending member that is biased in a position to retain the syringe in the adapter.

16. The adapter of

claim 1

wherein the at least one syringe retaining mechanism is hingedly attached to one side of the adapter to be movable between an open position and a closed position.

17. The adapter of

claim 1

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

18. The adapter of

claim 1

wherein the drive member does not connectively engage the plunger.

19. The adapter of

claim 1

wherein the releasable mounting mechanism is disposed on the rearward end of the syringe carrier.

20. The adapter of

claim 1

, further comprising a push rod disposed within the opening in the syringe carrier, the push rod comprising a distal end that is operable to engage the plunger of the syringe and a proximal end that is operable to engage the drive member of the injector.