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A pin index medical valve is a type of valve used on medical gas cylinders. It is designed to prevent the accidental connection of an incorrect gas to a medical device. The valve has two holes in specific positions on the cylinder valve body below the outlet port, in positions associated with the gas mixture. The holes accept pins 4 mm diameter by 6 mm long which are correctly aligned with the holes.

The pin index system was developed in the early 1950s by the US Fire Protection Association, the Compressed Gas Association, and the American Society of Anesthesiologists. It was designed to improve safety in the use of medical gases. Prior to the development of the pin index system, there were a number of accidents involving the accidental connection of incorrect gases to medical devices. These accidents resulted in serious injuries and fatalities.

The pin index system has been very successful in preventing accidental gas connections. It is now used on all medical gas cylinders in the United States and many other countries. The system has been credited with saving numerous lives.

Pin index medical valves are available for a variety of medical gases, including oxygen, nitrous oxide, and carbon dioxide. They are also available in a variety of materials, including brass, stainless steel, and aluminum.

Pin index medical valves are an important safety feature on medical gas cylinders. They help to prevent accidental gas connections, which can lead to serious injuries and fatalities.

Here are some of the benefits of using a pin index medical valve:

• Increased safety: The pin index system helps to prevent accidental gas connections, which can lead to serious injuries and fatalities.
• Improved efficiency: The pin index system can help to improve the efficiency of gas flow, as it eliminates the need to manually connect and disconnect gas cylinders.
• Reduced costs: The pin index system can help to reduce the cost of gas usage, as it eliminates the need to purchase and maintain multiple types of gas cylinders.

If you are using medical gases, it is important to use a pin index medical valve. This will help to keep you and your patients safe.