What is a high flow cannula?

Many people prefer to connect a humidifier to the oxygen supply line.

A high-flow cannula is used to deliver large amounts of oxygen to a patient who needs oxygen therapy. The cannula comes in different lengths and is connected to an oxygen tank or a machine called an oxygen concentrator. When using a high flow cannula, many people prefer to have a bubbler or humidifier also connected to the oxygen supply line coming from the oxygen tank.

With a high-flow cannula, oxygen can be delivered through short nasal tubes that are inserted into the patient’s nostrils.

When the oxygen requirement exceeds 0.2 cubic feet (6 liters) per minute, the use of a high-flow cannula will usually be implemented. A high-flow cannula will deliver 0.2-0.53 cubic feet (6-15 liters) of oxygen to the patient per minute. A doctor will determine the proper amount of oxygen needed through various testing procedures.

Oxygen is delivered through short nasal tubes that are inserted into the patient’s nostrils. The nasal tubes are connected to a reservoir tube that runs along the cheekbones. The reservoir tube is minimized to a length of 4 or 7 feet (about 1 or 2 meters) tube that goes behind the ears, fits under the chin, and continues with a cinch connector that connects it to a single tube and terminates. with an opening to connect to a swivel connector. From the swivel connector, various lengths of tubes are connected to an oxygen tank or a machine that concentrates oxygen from the air in the room.

Nasal cannulas are designed to fit into the nose and be secured around the head.

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The use of a humidifier or bubbler is generally preferred when using a high-flow cannula. Large amounts of oxygen administered to the patient can result in dryness of the nasal passages, nose bleeds and general discomfort. Humidified air helps alleviate these problems by keeping the delicate tissues lining the nasal cavity moist. Humidifiers should only be used with an oxygen tank, because additional moisture can cause mechanical failure of oxygen concentrators.

Use of a high-flow cannula can result in dryness of the nasal passages and nosebleeds.

The increase in respiratory diseases and the need for a comfortable but adequate oxygen supply gave rise to the high-flow cannula. Prior to use, many people were receiving oxygen therapy via face masks that put uncomfortable pressure on the face and made daily tasks such as eating and drinking difficult. With the use of the high flow cannula system, the patient can comfortably wear the device with little or no pressure on the face area. Drinking and eating are also unimpeded and can be performed without removing the cannula, allowing for uninterrupted oxygen therapy.

To alleviate problems with the cannulae, such as clogging or transmission of infection after a cold, patients are advised to change their high-flow cannula periodically. This should normally be done once a week and after any illness. Washing the cannula with soap and water is a good way to care for the cannula between changes.

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