Syringe adapter with concentric rings

Patent metadata

Field	Value
Publication number	US-2016354537-A1
Application number	US-201515117745-A
Country	US
Kind code	A1
Filing date	Feb 13, 2015
Priority date	Feb 17, 2014
Publication date	Dec 8, 2016
Grant date	—

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.

First claim

What is claimed is:

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.

2 . 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.

3 . 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.

4 . 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.

5 . 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.

6 . 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.

7 . The system of claim 1 where the magnet is fixed relative to the inner ring by a magnet holder.

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.

9 . The method of claim 8 further comprising, prior to loading the syringe on the power injector, filling the syringe with a fluid for injection.

10 . The method of claim 8 further comprising, after loading the syringe on the power injector, filling the syringe with a fluid for injection.

11 . The method of claim 8 wherein the loading includes loading the syringe on the power injector with a plunger engaging the ram.

12 . The method of claim 11 further comprising :
driving the ram to push fluid from the syringe.

13 . 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.

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.

15 . 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.

16 . The adapter of claim 14 where the magnet is fixed relative to the inner ring by a magnet holder.

17 . 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.

18 . 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.

Assignees

• Illinois Tool Works

Inventors

• Jozwik Raymond
• Leonhard Michael G

Classifications

• A61M5/31515

  Connection of piston with piston rod · CPC title

• A61M5/007 Primary

  for contrast media · CPC title

• A61M5/31578

  based on axial translation, i.e. components directly operatively associated and axially moved with plunger rod · CPC title

• A61M2005/31588

  electrically driven · CPC title

• A61M5/20

  Automatic syringes, e.g. with automatically actuated piston rod, with automatic needle injection, filling automatically (A61M5/142 {, A61M5/46} take precedence; {hypodermic projectiles F42B12/54}) · CPC title