anesthesia machine
An anesthesia machine is a medical device used to provide anesthesia support during surgery by precisely controlling the supply of anesthesia drugs and gases while maintaining the patient's respiratory function and vital signs stable.
Anesthesia machine components
1.Gas source part (O2, Air, N2O)
2.Flow control systems (mechanical flow meters, electronic flow meters)
3.Volatile canisters (single, double, triple) (anesthetic gases: halothane,
-isoflurane, sevoflurane, halothane)
4.Respiratory circuit
5.Control panel (touch screen anesthesia machines do not come with)
6.Display (touch screen anesthesia machine can be directly touch screen
-operation control)
7.Soda-lime canister (absorbs exhaled CO2 and maintains temperature and
-humidity of respiratory gases)
8.Storage box body (with or without)
Function of the anesthesia machine
Delivery of Anesthesia and Oxygenation
▪️Combines medical gases (oxygen, nitrous oxide, or air) with anesthetic agents (e.g., isoflurane, sevoflurane) to deliver a controlled mixture. ▪️Precisely regulates anesthetic concentrations to achieve and maintain the desired level of anesthesia. ▪️Ensures adequate oxygen supply to the patient, supporting tissue oxygenation throughout the surgical procedure.
Ventilation Support and Gas Monitoring
▪️Assists or completely controls the patient’s breathing using mechanical ventilation, particularly for patients under general anesthesia. ▪️Continuously monitors and displays critical gas levels, including oxygen, carbon dioxide, and anesthetic agent concentrations, to ensure patient safety and proper functionality.
Humidification and Temperature Regulation
▪️Delivers humidified and temperature-controlled gases to maintain airway moisture and temperature, preventing airway drying or cooling during prolonged surgeries.
Scavenging Waste Gases and Safety Features
▪️Collects and safely disposes of excess anesthetic gases, minimizing exposure risks for healthcare staff and maintaining a safe operating environment. ▪️Includes advanced alarms and safety mechanisms to detect issues such as low oxygen levels, excessive pressure, or machine malfunctions. ▪️Incorporates fail-safes to prevent the delivery of dangerously low oxygen concentrations, ensuring patient safety.
Classification of anesthesia machines
Anesthesia Workstation
An anesthesia workstation is a highly integrated system that combines the functions of an anesthesia machine with advanced electronic and computer-controlled capabilities. It manages anesthesia, respiration, life-support monitoring, and drug delivery, offering a comprehensive solution for complex medical environments, ensuring efficient and precise care during surgeries.
Universal Anesthesia Machine
The universal anesthesia machine is a reliable and widely used model, designed for hospitals and operating rooms. It provides advanced control over respiration and gas composition, ensuring safe, effective, and precise general anesthesia. This model is known for its versatility, making it suitable for various surgical procedures.
Compact Anesthesia Machine
The compact anesthesia machine is a portable, pneumatic-controlled system designed for dental and veterinary surgeries. Its lightweight, space-saving design allows for easy transport, and it offers customizable options such as different animal mask sizes to suit a wide range of patient needs. Ideal for environments where mobility and efficiency are key.
Our Product Selection
CNME010303plus
12.1" TFT with touch screen
Electronic flow meter
Pipeline supply of O2, N2O, Air
Tidal volume 15-1500mL
Standard Ventilation Mode:VCV,PCV,CPAP/PSV,SIMV-VC,SIMV-PC
Optional Ventilation Mode: PRVC, SIMV-PRVC,PSVPro
CNME010303
12.1" TFT with touch screen
Mechanical flowmeter
Pipeline supply of O2, N2O, Air
Tidal volume 15-1500mL
Standard Ventilation Mode: VCV,PCV,CPAP/PSV,SIMV-VC,SIMV-PC
Optional Ventilation Mode: PRVC, SIMV-PRVC,PSVPro
CNME0103C6
High resolution 10.4'' TFT LCD screen
Tidal volume 50-1500mL
Pipeline supply of O2, N2O, Air
2 Vaporizers (260 ml): Enflurane/ Isoflurane/ Sevoflurane/ Halothane
Modes:manual,auto(IPPV,SIGH,SIMV,SIPPV,Optional EtCO2)
CNME0103C4
High resolution 5.5'' LCD screen
Tidal volume 50-1500mL
Pipeline supply of O2/N2O or O2/Air (Optional)
1 Vaporizers (260 ml): Enflurane/ Isoflurane/ Sevoflurane/ Halothane
Modes:manual,auto(IPPV,SIGH,SIMV/F/2,SIPPV,Optional PEEP,EtCO2)
CNME0103C1
High luminance digital LED screen
Tidal volume 50-1500mL
Pipeline supply of O2
1 Vaporizers (180 ml): Enflurane/ Isoflurane/ Sevoflurane/ Halothane
Modes:manual,auto(IPPV)
CNME0103S3
Portable design,save space in O.R. or laboratory room
Tidal volume 50-1500mL
Pipeline supply of O2
1 Vaporizers (180 ml): Enflurane/ Isoflurane/ Sevoflurane/ Halothane
Modes:manual
Optional:anaesthesia ventilator
How does an anesthesia machine work
1.Gas delivery: The anesthesia machine delivers the necessary gases to the patient via a gas source (oxygen, nitrous oxide or air). These gases are supplied by a gas source (e.g., a cylinder or a central gas supply system) and are precisely controlled in terms of flow and pressure by means of a regulating device within the anesthesia machine.
2.Evaporation of anesthetics: Liquid volatile anesthetics (e.g., isoflurane, sevoflurane, or diflurane) are evaporated through the evaporator of the anesthesia machine and mixed with oxygen or air to form an anesthetic gas mixture.
3.Gas mixing: The anesthesia machine ensures that the gases are properly proportioned and is usually based on oxygen, providing a certain concentration of anesthetic drugs and other gases (e.g., nitrous oxide). These gas mixtures are delivered to the respiratory circuit through flow meters and mixers.
4.Respiratory circuit and ventilation support: The anesthesia machine provides mechanical ventilation support to the patient by connecting to a ventilator or a manual device to ensure that the airway is open and lung ventilation is maintained.
5.Gas Discharge: Used gas is guided by the loop to the exhaust gas discharge system to prevent excessive concentration of anesthetic gas in the operating room.
Regular maintenance and in-depth care
Weekly maintenance
Filter Check: Check and replace intake filters to ensure clean gas. Alarm System Calibration: Test for proper alarm function, especially low flow or high pressure alarms.
Monthly maintenance
Piping Pressure Resistance Test: Check the pressure resistance of the ventilation piping and fittings to ensure there are no air leaks. Vaporizer Function Test: Calibrates the vaporizer to ensure accurate anesthetic supply concentration.
Quarterly maintenance
Sensor Calibration: Calibrate the flow sensor and oxygen sensor to ensure accurate monitoring data. Software upgrade: Check if the device software version needs to be updated to maintain the latest features and performance.
Annual maintenance
Contact a professional technical service team for a complete inspection, including integrity testing of mechanical components, circuit systems, and air circuit systems. Replace deteriorated parts such as gas flow regulator valves, sealing gaskets, etc.
Handling of Common Problems
Concern
Possible Causes
Treatment
Oxygen pressure too low
Insufficient oxygen cylinders or leaking lines
Check gas supply and replace oxygen cylinders and repair leaks.
Abnormal anesthetic concentration
Faulty evaporator or insufficient agent
Check vaporizer function and replenish anesthetic agents.
Air leakage from the ventilation system
Poor connection of piping or air storage bag
Reconnect the lines and check the seals.
display screen malfunction
Circuit problems or software crashes
Restart the unit or contact a technician for service.
Alarm system failure
Faulty or improperly calibrated sensors
Calibrate the sensor and replace it with a new one if necessary.