Magnetic pressure jacket for fluid injector

Patent metadata

Field	Value
Publication number	US-2016250409-A1
Application number	US-201415028784-A
Country	US
Kind code	A1
Filing date	Oct 17, 2014
Priority date	Oct 18, 2013
Publication date	Sep 1, 2016
Grant date	—

Abstract

A fluid injector for use with at least one syringe has at least one injector head with a front end configured to releasably receive the at least one syringe. The fluid injector further includes at least one pressure jacket releasably associated with the front end of the at least one injector head for securing the at least one syringe during an injection procedure. A connection mechanism releasably connects the at least one pressure jacket to the front end of the at least one injector head. The connection mechanism includes at least one magnet. The at least one injector head has the at least one magnet while the at least one pressure jacket has a ferromagnetic material configured for magnetically interacting with the at least one magnet.

First claim

1 . A fluid injector for use with at least one syringe, the fluid injector comprising:
at least one injector head having a front end configured to releasably receive the at least one syringe; at least one pressure jacket releasably associated with the front end of the at least one injector head for securing the at least one syringe during an injection procedure; and a connection mechanism for releasably connecting the at least one pressure jacket to the front end of the at least one injector head, wherein the connection mechanism comprises at least one magnet.

2 . The fluid injector of claim 1 , wherein the connection mechanism comprises a first magnet on the at least one pressure jacket and a second magnet on the at least one injector head.

3 . The fluid injector of claim 1 wherein the at least one magnet is on at least one of the at least one pressure jacket and the at least one injector head.

4 . The fluid injector of claim 1 , wherein the at least one injector head comprises the at least one magnet and wherein the at least one pressure jacket comprises a ferromagnetic material configured for magnetically interacting with the at least one magnet.

5 . The fluid injector of claim 4 , wherein the ferromagnetic material is formed on a terminal surface of the at least one pressure jacket that engages the front end of the at least one injector head.

6 . The fluid injector of claim 1 , wherein the at least one magnet comprises a plurality of magnets arranged in a shape corresponding to a terminal surface of the at least one pressure jacket.

7 . The fluid injector of claim 1 , wherein the at least one magnet is received within a pocket formed on the front end of the at least one injector head.

8 . The fluid injector of claim 1 , further comprising at least one arm pivotally connected at a proximal end to the at least one injector head for retaining a distal end of the at least one pressure jacket, wherein the at least one arm is pivotable between a first position and a second position.

9 . The fluid injector of claim 8 , wherein the at least one arm is magnetically retained in the first position.

10 . The fluid injector of claim 8 , further comprising a holding bracket pivotally connected to a distal end of the at least one arm for engaging the distal end of the at least one pressure jacket, wherein the holding bracket is pivotable between a first holding bracket position and a second holding bracket position.

11 . The fluid injector of claim 10 , wherein the holding bracket is magnetically retained in the first holding bracket position.

12 . The fluid injector of claim 1 , wherein the at least one magnet is at least one permanent magnet.

13 . The fluid injector of claim 1 , wherein the at least one magnet is at least one electromagnet.

14 . A pressure jacket for use with a fluid injector, the pressure jacket comprising:
a tubular body having a proximal end and a distal end; a syringe receiving opening at the proximal end or the distal end configured for receiving a syringe within an interior of the tubular body; a connection portion with a terminal surface at the proximal end configured for releasably connecting the pressure jacket to the fluid injector; and at least one connection element on at least a portion of the connection portion, wherein the at least one connection element is configured to magnetically interact with the fluid injector for releasably connecting the pressure jacket to the fluid injector.

15 . The pressure jacket of claim 14 , wherein the at least one connection element is at least one ferromagnetic element.

16 . The pressure jacket of claim 14 , wherein the at least one connection element is at least one magnet.

17 . The pressure jacket of claim 14 , wherein the at least one connection element is ring-shaped.

18 . A fluid injector for use with at least one syringe, the fluid injector comprising:
at least one injector head having a front end configured to releasably receive the at least one syringe; at least one pressure jacket releasably associated with the front end of the at least one injector head for securing the at least one syringe during an injection procedure; at least one arm pivotally connected at a proximal end to the at least one injector head for retaining a distal end of the at least one pressure jacket, the at least one arm being pivotable between a first position and a second position; and a connection mechanism for at least one of releasably connecting the at least one pressure jacket to the front end of the at least one injector head and retaining the at least one arm in the first position, wherein the connection mechanism comprises at least one magnet.

19 . The fluid injector of claim 18 , further comprising a holding bracket pivotally connected to a distal end of the at least one arm for engaging the distal end of the at least one pressure jacket, wherein the holding bracket is pivotable between a first holding bracket position and a second holding bracket position.

20 . The fluid injector of claim 19 , wherein the holding bracket is magnetically retained in the first holding bracket position.

Assignees

• Bayer Healthcare Llc

Inventors

• Dedig James A
• Schriver Ralph H
• Campbell Patrick B
• Grubic Herbert M

Classifications

• A61M5/14566

  with a replaceable reservoir for receiving a piston rod of the pump · CPC title

• A61M2005/14553

  comprising a pressure jacket · CPC title

• A61M5/14546 Primary

  Front-loading type injectors · 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

• A61M2005/14573

  with a replaceable reservoir for quick connection/disconnection with a driving system · CPC title