Front-loading syringe adapted to releasably engage a medical injector regardless of the orientation of the syringe with respect to the injector

• US 20040133161A1
• Filed: 09/23/2003
• Published: 07/08/2004
• Est. Priority Date: 02/07/2000
• Status: Active Grant

• Current Assignee: Bayer Healthcare LLC (Bayer AG)
• Original Assignee: Bayer Medical Care Inc. (Bayer AG)
• Inventors: Trocki, Mark, Rhinehart, Edward J., Cowan, Kevin P., Sciulli, Francis J., Dedig, James A., Hitchins, Mark W., Rygg, Steven C., Parks, Robert D., Fuchs, Larry J.
• Granted Patent: US 8,721,596 B2
• Time in Patent Office: Days
• US Class Current: 604/131
• CPC Class Codes: A61M 2039/1077 Adapters, e.g. couplings adapting a connector to one or several other connectors
• CPC Class Codes: A61M 2205/60 with identification means
• CPC Class Codes: A61M 2205/6063 Optical identification systems
• CPC Class Codes: A61M 2205/6072 Bar codes
• CPC Class Codes: A61M 39/10 Tube connectors; Tube couplings A61M39/02 takes precedence; connecting needles to syringes or hubs A61M5/34; connecting catheter tubes to hubs A61M25/0014
• CPC Class Codes: A61M 5/14546 Front-loading type injectors
• CPC Class Codes: A61M 5/14566 with a replaceable reservoir for receiving a piston rod of the pump
• CPC Class Codes: A61M 5/28 Syringe ampoules or carpules, i.e. ampoules or carpules provided with a needle
• CPC Class Codes: A61M 5/31515 Connection of piston with piston rod
• CPC Class Codes: A61M 5/31576 Constructional features or modes of drive mechanisms for piston rods

Abstract

A syringe for use with an injector includes a body having a rear end and a front end, a plunger movably disposed within the body, an attachment member associated with the body and adapted to releasably engage a syringe retaining mechanism of the injector regardless of the orientation of the syringe with respect to the injector, and an encoding device operable to provide syringe information to the injector.

Claims

1. A syringe for use with an injector comprising a syringe retaining mechanism, the syringe comprising:

a body comprising a rear end and a front end;

a plunger movably disposed within the body;

at least one attachment member associated with the body, the at least one attachment member adapted to releasably engage the syringe retaining mechanism of the injector regardless of the orientation of the syringe with respect to the injector; and

an encoding device operable to provide syringe information to the injector.

2. The syringe of claim 1 wherein the at least one attachment member comprises an annular ridge disposed on the body.

3. The syringe of claim 1, further comprising one or more projections associated with the body, the one or more projections adapted to engage corresponding members of the syringe retaining mechanism to enable release of the syringe from the injector through rotational motion.

4. The syringe of claim 1 wherein the at least one attachment member comprises one or more tab members.

5. The syringe of claim 4 wherein each of the tab members comprises a first tab end attached to the body and a second tab end adapted to engage the syringe retaining mechanism of the injector.

6. The syringe of claim 4 wherein the tab members are resilient members.

7. The syringe of claim 4 wherein the tab members are integrally formed with the body.

8. The syringe of claim 1, further comprising a flange associated with the body and adapted to engage a corresponding surface of the injector when the syringe is releasably engaged therewith.

9. The syringe of claim 8 wherein the flange is adapted to substantially prevent fluid from entering the interior of the injector.

10. The syringe of claim 1 wherein the at least one attachment member is moved in an axial direction to releasably engage the injector.

11. The syringe of claim 1 wherein the at least one attachment member is moved in a vertical direction to releasably engage the injector.

12. The syringe of claim 1 wherein the at least one attachment member is associated with the rear end of the body.

13. The syringe of claim 1 wherein the at least one attachment member is associated with the front end of the body.

14. A syringe for use with an injector comprising a syringe retaining mechanism, the syringe comprising:

a body comprising a rearward end and a forward end;

a plunger movably disposed within the body;

at least one attachment member associated with the body; and

at least one rotation member comprising a recess formed in the body for releasably engaging a corresponding member of the syringe retaining mechanism of the injector.