# US 2016/0354537 A1 · Syringe adapter with concentric rings > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2016/0354537 A1 - Document ID: US20160354537A1 - Status: Published application - Kind: A1 - Application number: 15/117,745 - Filed: 2015-02-13 - Published: 2016-12-08 - Earliest claimed: 2014-02-17 - Assignees: Illinois Tool Works Inc. - Applicants: Illinois Tool Works Inc. - Inventors: Raymond JOZWIK; Michael G. LEONHARD - Web page: https://patentgrep.com/patent/US20160354537A1 ## CPC - A61M 5/007: {for contrast media} - A61M 5/14546: {Front-loading type injectors} - A61M 5/14566: {with a replaceable reservoir for receiving a piston rod of the pump} - A61M 5/20: Automatic syringes, e.g. with automatically actuated piston rod, with automatic needle injection, filling automatically (A61M5/142 takes precedence) - A61M 5/3135: {characterised by constructional features of the proximal end} - A61M 5/31578: {the piston rod being moved by the axial movement of a component directly in contact with it} - A61M 5/31515: {Connection of piston with piston rod} - A61M 2005/3114: {Filling or refilling} - A61M 2005/31588: {electrically driven} - A61M: DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY (introducing media into or onto the bodies of animals A61D7/00; means for inserting tampons A61F13/26; devices for administering food or medicines orally A61J; containers for collecting, storing or administering blood or medical fluids A61J1/05); DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY (surgery A61B; chemical aspects of surgical articles A61L); DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR {(Electrotherapy, e.g. producing anaesthesia by the use of alternating or intermittent currents A61N1/36021)} ## Abstract An adapter for use with a syringe and a power injector includes an outer ring having a first end configured for passage of an end of a syringe having at least one flange. An inner ring is disposed coaxially within the outer ring. The inner ring has a first end including at least one flange slot. A magnet fixed relative to the inner ring such that when the syringe end is disposed in the outer ring and the at least one flange engages the at least one flange slot, rotation of the syringe causes rotation of the inner ring and magnet relative to the outer ring. ## Claims ### Claim 1 A medical system for injecting a fluid comprising: a power injector with a ram for pushing fluid from a syringe, the injector including: a faceplate, and an adapter for use with a syringe, the adapter engaging the faceplate, the adapter including: an outer ring having a first end configured for passage of an end of a syringe having at least one flange, an inner ring disposed coaxially within the outer ring, the inner ring having a first end including at least one flange slot, and a magnet fixed relative to the inner ring, where when the syringe end is disposed in the outer ring and the at least one flange engages the at least one flange slot, rotation of the syringe causes rotation of the inner ring and magnet relative to the outer ring. ### Claim 2 (depends on 1) The system of claim 1 further comprising: a syringe having: a barrel having a distal end and a proximal end and a defining an interior volume therebetween, at least one flange extending from the proximal end, and a delivery tip extending from the distal end, where the ram drives a plunger disposed within the barrel to push fluid from the syringe. ### Claim 3 (depends on 2) The system of claim 2 further comprising: a ram extension connected to the end of the ram, a ram tip connected to the end of the ram extension opposite the ram, and a cone for supporting the plunger connected to the ram tip opposite the ram extension. ### Claim 4 (depends on 2) The system of claim 2 where the inner ring has two flange slots and where the syringe has two flanges extending in opposed directions from the circumference of the barrel, the two flanges disposed in the flange slots. ### Claim 5 (depends on 1) The system of claim 1 where the faceplate includes an upper faceplate portion and a lower faceplate portion that about one another and are disposed about the outer ring. ### Claim 6 (depends on 5) The system of claim 5 where the injector further comprises a faceplate ring that cooperates with the upper faceplate portion and the lower faceplate portion to retain the outer ring within the faceplate. ### Claim 7 (depends on 1) The system of claim 1 where the magnet is fixed relative to the inner ring by a magnet holder. ### Claim 8 A method for operating a medical injector system comprising: providing a power injector with a ram and having a faceplate, providing an adapter including an outer ring having a first end, an inner ring disposed coaxially within the outer ring, the inner ring having a first end including at least one flange slot, and a magnet fixed relative to the inner ring, providing a syringe having: a barrel having a distal end and a proximal end and a defining an interior volume therebetween, at least one flange extending from proximal end, and a delivery tip extending from the distal end, loading the syringe on the power injector by passing the proximal end of the syringe through the first end of the outer ring, engaging the at least one flange slot with the at least one flange, and rotating the syringe to causes rotation of the inner ring and magnet relative to the outer ring. ### Claim 9 (depends on 8) The method of claim 8 further comprising, prior to loading the syringe on the power injector, filling the syringe with a fluid for injection. ### Claim 10 (depends on 8) The method of claim 8 further comprising, after loading the syringe on the power injector, filling the syringe with a fluid for injection. ### Claim 11 (depends on 8) The method of claim 8 wherein the loading includes loading the syringe on the power injector with a plunger engaging the ram. ### Claim 12 (depends on 11) The method of claim 11 further comprising : driving the ram to push fluid from the syringe. ### Claim 13 (depends on 11) The method of claim 11 wherein engaging the ram includes the use of a ram extension connected to the end of the ram, a ram tip connected to the end of the ram extension opposite the ram, and a cone for supporting the plunger connected to the ram tip opposite the ram extension. ### Claim 14 An adapter for use with a syringe and a power injector, the adapter comprising: an outer ring having a first end configured for passage of an end of a syringe having at least one flange, an inner ring disposed coaxially within the outer ring, the inner ring having a first end including at least one flange slot, and a magnet fixed relative to the inner ring, where when the syringe end is disposed in the outer ring and the at least one flange engages the at least one flange slot, rotation of the syringe causes rotation of the inner ring and magnet relative to the outer ring. ### Claim 15 (depends on 14) The adapter of claim 14 where the outer ring includes a second end having a slot for engagement of a protrusion on a faceplate of an injector. ### Claim 16 (depends on 14) The adapter of claim 14 where the magnet is fixed relative to the inner ring by a magnet holder. ### Claim 17 (depends on 14) The adapter of claim 14 further comprising a spring plunger engaging a slot in the outer ring for biasing the position of the inner ring. ### Claim 18 (depends on 14) The adapter of claim 14 were the inner ring includes a radial slot for interaction with a protrusion on an injector head to limit rotation of the inner ring.