Pressure jackets and syringe retention features for angiography fluid injectors

Patent metadata

Field	Value
Publication number	US-2022313897-A1
Application number	US-202017640956-A
Country	US
Kind code	A1
Filing date	Sep 9, 2020
Priority date	Sep 10, 2019
Publication date	Oct 6, 2022
Grant date	—

Abstract

An assembly for retaining a pressure jacket (134) and a syringe (132) on a fluid injector, the assembly including a base plate (1902) comprising a body (1904); at least a first retaining arm (1910a) and a second retaining arm (1910b) operatively mounted on the body of the base plate, the first retaining arm having a first retaining surface at a distal end thereof and the second retaining arm having a second retaining surface at a distal end thereof, wherein the first retaining surface and the second retaining surface are configured for abutting a distal surface of at least one of the pressure jacket and the syringe; a linkage assembly operatively connected to at least one of the first retaining arm and the second retaining arm, wherein the linkage assembly is configured to move at least one of the first retaining arm and the second retaining arm between at least a first open position and a closed position.

First claim

1 . An assembly for retaining a pressure jacket and a syringe on a fluid injector; the assembly comprising:
a base plate comprising a body; at least a first retaining arm and a second retaining arm operatively mounted on the body of the base plate, the first retaining arm having a first retaining surface at a distal end thereof and the second retaining arm having a second retaining surface at a distal end thereof, wherein the first retaining surface and the second retaining surface are configured for abutting a distal surface of at least one of the pressure jacket and the syringe; and a linkage assembly operatively connected to at least one of a proximal end of the first retaining arm and a proximal end of the second retaining arm, wherein the linkage assembly is configured to move at least one of the first retaining arm and the second retaining arm between at least a first open position and a closed position.

2 . (canceled)

3 . The assembly of claim 1 , wherein the linkage assembly operatively connects the first retaining arm to the second retaining arm such that the first retaining arm and the second retaining arm are configured to move in unison between at least the first open position and the closed position.

4 . The assembly of claim 3 , wherein the linkage assembly comprises at least one biasing member configured for biasing the first retaining arm and the second retaining arm to move in unison between at least the first open position and the closed position.

5 . The assembly of claim 1 , wherein the first retaining arm and the second retaining arm are connected to the body of the base plate at a first pivot point and a second pivot point, respectively, so that the first retaining arm and the second retaining arm pivot between at least the first open position and the closed position about the first pivot point and the second pivot point.

6 . The assembly of claim 1 , wherein the first retaining arm and the second retaining arm are further configured to move to a second open position between the first open position and the closed position.

7 . The assembly of claim 6 , wherein, in the first open position, the first retaining surface of the first retaining arm and the second retaining surface of the second retaining arm are separated from one another at a first distance configured to permit insertion and engagement of at least one of the pressure jacket and the syringe with the fluid injector or removal of at least one of the pressure jacket and the syringe from the fluid injector,
wherein, in the closed position, the first retaining surface of the first retaining arm and the second retaining surface of the second retaining arm are separated from one another at a second distance to retain the pressure jacket and the syringe between the first retaining arm and the second retaining arm, wherein, in the second open position, the first retaining surface of the first retaining arm and the second retaining surface of the second retaining arm are separated from one another at a third distance to retain the pressure jacket in the fluid injector and allow removal of the syringe from the fluid injector, wherein the first distance is greater than the second distance, and wherein the third distance is less than the first distance and greater than the second distance.

8 . The assembly of claim 1 , wherein, in the first open position, the first retaining surface of the first retaining arm and the second retaining surface of the second retaining arm are separated from one another at a first distance configured to permit insertion and engagement of at least one of the pressure jacket and the syringe with the fluid injector or removal of at least one of the pressure jacket and the syringe from the fluid injector,
wherein, in the closed position, the first retaining surface of the first retaining arm and the second retaining surface of the second retaining arm are separated from one another at a second distance to retain the pressure jacket and the syringe between the first retaining arm and the second retaining arm, and wherein the first distance is greater than the second distance.

9 . The assembly of claim 1 , wherein each of the first retaining arm and the second retaining arm comprises at least one base member operatively connected to the body of the base plate and at least one retaining portion provided on a distal end of the at least one base member.

10 . The assembly of claim 1 , wherein the first retaining surface of the first retaining arm comprises a first syringe retaining surface and a first pressure jacket retaining surface, and
wherein the second retaining surface of the second retaining arm comprises a second syringe retaining surface and a second pressure jacket retaining surface.

11 . The assembly of claim 4 , wherein the at least one biasing member is configured to bias the first retaining arm and the second retaining arm in at least one of the first open position, a second open position, and the closed position.

12 . An assembly for retaining a pressure jacket and a syringe in a fluid injector, the assembly comprising:
a base plate comprising a body; and at least a first retaining arm and a second retaining arm operatively mounted on the body of the base plate, the first retaining arm having a first retaining surface at a distal end thereof and the second retaining arm having a second retaining surface at a distal end thereof, wherein the first retaining surface and the second retaining surface are configured for abutting a distal surface of at least one of the pressure jacket and the syringe, wherein each of the first retaining arm and the second retaining arm comprises at least one base member operatively connected to the body of the base plate and at least one retaining portion provided on a distal end of the at least one base member configured to engage at least one of the pressure jacket and the syringe.

13 . The assembly of claim 12 , wherein the first retaining surface of the first retaining arm and the second retaining surface of the second retaining arm each include at least one inner protrusion to engage a distal end of at least one of the pressure jacket and the syringe.

14 . The assembly of claim 13 , wherein at least one of the at least one inner protrusions is a syringe retaining protrusion extending at an angle relative to a longitudinal axis of the syringe and configured to interact with a corresponding angled distal surface of a circumferential wall on a distal end of the syringe to urge the distal ends of the first retaining arm and the second retaining arm with an inward retaining force.

15 . The assembly of claim 12 , wherein at least one of the first retaining arm and the second retaining arm includes at least one finger tab configured to assist in moving the first retaining arm and the second retaining arm between a closed position and an open position.

16 . (canceled)

17 . (canceled)

18 . The assembly of claim 12 , wherein, in an open position, the first retaining surface of the first retaining arm and the second retaining surface of the second retaining arm are separated from one another at a first distance configured to permit insertion and engagement of at least one of the pressure jacket and the syringe with the fluid injector or removal of at least one of the pressure jacket and the syringe from the fluid injector,
wherein, in a closed position, the first retaining surface of the first retaining arm and the second retaining surface of the second retaining arm are separated from one another at a second

Assignees

• Bayer Healthcare Llc

Inventors

• Spohn Michael
• Cowan Kevin
• Uber Iii Arthur
• Campbell Patrick
• Osan Andrew
• Haury John
• Dedig James
• Naples Andrew
• Scutt Christopher
• Swantner Michael
• Payor Nathaniel

Classifications

• A61M5/007 Primary

  for contrast media · CPC title

• A61M5/14566 Primary

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

• A61M2205/586

  Ergonomic details therefor, e.g. specific ergonomics for left or right-handed users · CPC title

• A61M2209/082

  Mounting brackets, arm supports for equipment · CPC title

• A61M5/14546 Primary

  Front-loading type injectors · CPC title