Devices, systems, and methods for siphon prevention in systems to supply fluids to an endoscope

A container and tube set arranged and configured to couple to an endoscope for use in an endoscopic procedure, the container and tube set comprising:

• a container configured to contain a fluid;
• a water supply tube including a first end, a second end, and a first lumen extending therethrough, wherein the first lumen is in selective fluid communication with the container and the second end of the water supply tube is positioned external to the container;
• a gas supply tube including a first end, a second end, and a second lumen extending therethrough, wherein the second lumen is in operative fluid communication with the first container and the second end of the first gas supply tube is positioned external to the first container;
• and
• a fluid flow control assembly positioned in-line with the water supply tube, the fluid flow control assembly comprising:
• a body member having a first end region having a first outer dimension and a second end region having a second outer dimension, the second outer dimension less than the first outer dimension;
• a valve housing secured to the second end region of the body member;
• a lumen extending through the first body member and the valve housing;
• and
• a valve extending across the lumen and disposed between the body portion and the valve housing;
• wherein the fluid flow control assembly is configured to allow a flow of fluid in response to an opening pressure.

A container and tube set arranged and configured to couple to an endoscope for use in an endoscopic procedure, the container and tube set comprising:

• a container configured to contain a fluid;
• a water supply tube including a first end, a second end, and a first lumen extending therethrough, wherein the first lumen is in selective fluid communication with the container and the second end of the water supply tube is positioned external to the container;
• a gas supply tube including a first end, a second end, and a second lumen extending therethrough, wherein the second lumen is in operative fluid communication with the first container and the second end of the first gas supply tube is positioned external to the first container;
• and
• a fluid flow control assembly positioned in-line with the water supply tube, the fluid flow control assembly comprising:
• a first body member;
• a second body member;
• a valve housing secured between the first body member and the second body member;
• a third lumen extending from a first end to a second end of the fluid flow control assembly, the third lumen in selective fluid communication with the first lumen of the water supply tube;
• a fourth lumen extending from the first end to the second end of the fluid flow control assembly, the fourth lumen in fluid communication with the second lumen of the gas supply tube;
• and
• a valve extending across the third lumen and disposed between the first body portion and the valve housing;
• wherein the fluid flow control assembly is configured to allow a flow of fluid in response to an opening pressure.