Front load pressure jacket system with syringe holder

• US 20020177810A1
• Filed: 04/12/2002
• Published: 11/28/2002
• Est. Priority Date: 08/25/1995
• Status: Abandoned Application

• Current Assignee: Medrad Incorporated (Bayer AG)
• Original Assignee: Medrad Incorporated (Bayer AG)
• Inventors: Uber, Arthur E. III, Reilly, David M., Hirschman, Alan D., Gelblum, Eugene A.
• Application Number:
  US10/121,934
• Publication Number:
  US 20020177810A1
• Time in Patent Office: Days
• US Class Current: 604/151
• CPC Class Codes: A61M 2005/14553 comprising a pressure jacket
• 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: B05C 17/00596 The liquid or other fluent material being supplied from a rigid removable cartridge having no active dispensing means, i.e. the cartridge requiring cooperation with means of the handtool to expel the material
• CPC Class Codes: B05C 17/01 with manually mechanically or electrically actuated piston or the like B05C17/00533 takes precedence
• CPC Class Codes: Y10S 128/01 Motorized syringe

Abstract

The pressure jacket systems of the invention are used to permit the front loading and removal of a syringe from an injector and include a first jacket segment and a second jacket segment surrounding the exterior surface of the syringe, interior surfaces comformable to the exterior surface of the syringe, a mechanism which allows movement of the first jacket segment in relation to the second jacket segment to permit insertion and removal of the syringe from the pressure jacket, and a mechanism for securing the first and second jacket segments in a fixed relationship upon insertion of the syringe.

Claims

1. Fluid injection apparatus comprising:

an injector head having a housing and a front opening in said housing for connection to a rear end of a syringe, drive means extendible through said opening and an opening in said rear end of the syringe for imparting motive force to a plunger disposed in the syringe; and

a pressure jacket including first and second jacket halves having interior surfaces conformable to portions of an exterior surface of said syringe, a hinge pin extending from a front face of said injector head, at least one of said first and second jacket halves rotatably mounted on said hinge pin and articulable between an open position allowing insertion and removal of said syringe, and a closed position wherein said jacket substantially surrounds said syringe.

2. The fluid injection apparatus of claim 1 wherein said first and second jacket halves are substantially clear plastic.

3. The fluid injection apparatus of claim 1 wherein said first and second jacket halves have a semi-cylindrical shape.

4. The fluid injection apparatus of claim 1 wherein said pressure jacket, when in said closed position, is disposed around an axis, said hinge pin aligned with said axis.