Anesthesia Machine Label Parts

Oxygen flush valve

Allows oxygen to flow into the breathing system without going through the vaporizer

Tank pressure gauge

shows amount of gas in tank

Oxygen concentrator

Machine that collects and concentrates oxygen from room air and stores it for client use

Yoke attachments

Lock-and-key portion of E-tanks that ensures they can only be connected to correct type of machine

Pressure reducing valve

A valve that reduces the pressure of a compressed gas to a constant safe operating pressure of 40 to 50 psi regardless of pressure changes within the tank

Flow meter

A device used to control the rate of oxygen being delivered in liters per minute

Vaporizer Inlet Port

Where carrier gas (usually oxygen) enters a vaporizer from the flowmeter

Anesthetic Vaporizer

Device which vaporizes liquid inhalant anesthetic and mixes it with oxygen.

Precison vaporizer

Used to deliver a precise amount of anesthetic to the patient.

Nonprecise vaporizer

Used to deliver low vapor pressure anesthetics.

Vaporizer outlet port

Oxygen/anesthetic exits the vaporizer

Connected to the common gas outlet or directly into the breathing circuit

Unidirectional valves

The inspiratory valve or expiratory valve of a rebreathing circuit. Controls the direction of gas flow through a rebreathing circuit as the patient breathes.

Both together as one.

Pop-off valve

Also known as the pressure relief valve, exhaust valve, adjustable pressure limiting (APL) valve, or overflow valve; this valve is the point of exit of anesthetic gases from the breathing circuit and enter the scavenging system.

Carbon dioxide absorber canister

The part of a rebreathing circuit that holds the carbon dioxide absorbent granules. These granules, primarily made of calcium hydroxide, remove expired CO2.

Pressure manometer

A device that measures the pressure of gases in the breathing circuit and the patient's lungs.

Air intake valve

Negative pressure relief valve.

Admits room air into the circuit if negative pressure is detected in the breathing circuit.