Cholangiography device and method

• US 4,044,757 A
• Filed: 01/14/1976
• Issued: 08/30/1977
• Est. Priority Date: 01/14/1976
• Status: Expired due to Term

• Current Assignee: Gec-Marconi Limited The Grove Warren Lane Stanmore
• Original Assignee: The Kendall Company (Colgate-Palmolive Company)
• Inventors: McWhorter, Daniel M., Patel, Bhupendra C.
• Primary Examiner(s): Truluck, Dalton L.
• Application Number:
  US05/648,990
• Time in Patent Office: 594 Days
• Field of Search: 128/2 A, 128/2 R, 128/214 R, 128/214 F, 128/218 R, 128/218 C, 128/234, 128/273, 128/218 PA
• US Class Current: 600/432
• CPC Class Codes: A61M 3/005 comprising means for injection of two or more media, e.g. by mixing
• CPC Class Codes: A61M 3/0262 manually, e.g. by squeezing a bulb
• CPC Class Codes: A61M 39/223 Multiway valves
• CPC Class Codes: A61M 5/007 for contrast media
• CPC Class Codes: A61M 5/1408 in parallel, e.g. manifolds, sequencing valves access sites A61M39/02; tube connectors A61M39/10
• CPC Class Codes: A61M 5/1456 with a replaceable reservoir comprising a piston rod to be moved into the reservoir, e.g. the piston rod is part of the removable reservoir
• CPC Class Codes: A61M 5/19 having more than one chamber , e.g. including a manifold coupling two parallelly aligned syringes through separate channels to a common discharge assembly surgical glue applicators A61B17/00491

Abstract

A device for use in cholangiography and similar procedures comprising, a first syringe having a barrel defining a chamber for retaining an irrigation liquid, and a plunger having one end received in the chamber for pumping the liquid from the chamber. The device has a second syringe having a barrel defining a chamber for retaining a liquid contrast medium, and a plunger having one end received in the chamber of the second syringe for pumping the contrast medium from the chamber. The device has a catheter having a distal end, a proximal end, and a lumen extending through the catheter. The device also has means for connecting the proximal end of the catheter to the chambers of the first and second syringes without exposing the liquids to the atmosphere intermediate the lumen and chambers, in order that the irrigation liquid and contrast medium may be ejected through the catheter without introduction of air into the device.

Claims

1. A device for use in cholangiography and similar procedures, comprising:

a first syringe having a barrel defining a chamber for retaining an irrigation liquid, and a plunger having one end received in said chamber for pumping the liquid from said chamber;

a second syringe having a barrel defining a chamber for retaining a liquid contrast medium, and a plunger having one end received in the chamber of the second syringe for pumping the contrast medium from said chamber;

a catheter having a distal end, a proximal end, and a lumen extending through the catheter;

means for connecting the proximal end of said catheter to the chambers of the first and second syringes without exposing the liquids to the atmosphere intermediate the lumen and chambers, whereby the irrigation liquid and contrast medium may be ejected through the catheter without introduction of air into the device; and

a plate, said syringes being secured to said plate, a pair of elongated arms each having one end secured to said plungers and the other ends being slotted and slidably secured to said plate, screws secured to said plate and positioned in said slots to releasably lock said arms to in turn lock said plungers at any inner or outer selected position.

2. The device of claim 1 wherein the connecting means selectively connects the proximal end of the catheter to the chambers of said first and second syringes.

3. The device of claim 1 wherein said catheter has an outer bead spaced slightly from the distal end of the catheter.