3. Anesthesia Machine
• A medical device used to deliver anesthetic gases and other
medications to patients during surgical procedures or other
medical interventions where anesthesia is required.
• The machine allows anesthesiologists to control the
delivery of gases such as oxygen, nitrous oxide, and
volatile anesthetic agents like isoflurane or sevoflurane, as
well as intravenous medications.
7. Key Components Of An Anesthesia Machine
• Gas Sources: These machines are connected to
medical gas sources such as oxygen, nitrous oxide,
and sometimes air, which are essential for maintaining
patient oxygenation and facilitating anesthesia.
• Flowmeters: Flowmeters allow the precise control of
gas flow rates, enabling the delivery of the desired
concentration of gases to the patient
8. • Vaporizers: Vaporizers are devices that mix volatile
anesthetic agents with carrier gases, delivering a
controlled concentration of the anesthetic agent to the
patient. Different vaporizers are used for different
volatile agents.
• Breathing Circuit: The breathing circuit connects the
patient to the anesthesia machine. It includes
components such as tubes, valves, and connectors,
through which gases are delivered to the patient and
exhaled gases are removed
9. • Ventilator: Many modern anesthesia machines are
equipped with ventilators to assist or control the
patient's breathing during anesthesia. These ventilators
can be set to deliver specific tidal volumes and
respiratory rates.
• Monitoring Devices: Anesthesia machines often
include monitors to measure and display parameters
such as oxygen saturation (pulse oximetry), end-tidal
carbon dioxide (capnography), blood pressure, and
electrocardiogram (ECG). These monitors help the
anesthesia provider.
10. Checking Anesthesia Machine
1. Check the scavenging :
Check that there is an air break and that it is connected to the scavenging system.
2. Check the oxygen supply
Check that the oxygen cylinder is firmly attached.
3. Connecting pipeline gas:
If pipeline gas is available, plug the oxygen pipeline into a wall socket; this will make
the alarm sound briefly.
4. Check the vaporizer.
Check that the vaporizer(s) is locked into position and is seated properly on the back
bar.
5.Check for leaks in the system.
Check the machine for leaks by covering the common gas outlet with your thumb.
11. Checking Anesthesia Machine
• Resetting the station:
• Check that the anesthetic machine, vaporizer(s), oxygen and nitrous oxide.
• Cylinders are all turned off .
• Check that the oxygen and nitrous oxide flow meters have all been turned
off.
• Unplug the oxygen & nitrous oxide pipeline.
• Leave the work space clean and tidy.
12. • Safety Features:
To ensure the delivery of anesthesia is controlled and
safe. These may include oxygen and nitrous oxide
failure alarms, pressure relief valves, and fail-safe
mechanisms to prevent delivery of excessive anesthetic
concentrations
13. Laryngoscope
• A laryngoscope is a medical instrument used to
examine the larynx (voice box), including the vocal
cords, and surrounding structures like the back of the
throat, often used during procedures like endotracheal
intubation.
• Purpose :
Laryngoscopes are used to visualize the larynx, which
is essential for diagnosing and treating conditions
affecting the voice box, such as hoarseness, difficulty
swallowing, or persistent coughs.
18. Parts of Laryngoscope
• Handle: The handle of a laryngoscope is
usually made of metal or plastic and is
designed to provide a comfortable grip for the
operator. It contains batteries or a rechargeable
power source to illuminate the blade.
19. • Blade: The blade of a laryngoscope is the part that is
inserted into the patient's mouth to view the larynx
and vocal cords. It is typically made of metal and
comes in various shapes and sizes.
• Light Source: Laryngoscope blades are equipped
with a light source, usually an incandescent bulb or
light-emitting diode (LED), that illuminates the area
being visualized. The light source is powered by the
batteries or power source in the handle.
21. Types of Laryngoscopes
• Direct Laryngoscope: Traditional laryngoscopes with a
handle, blade, and light source.
• Video Laryngoscope: Advanced laryngoscopes equipped with
a miniature camera at the tip of the blade, allowing the
operator to view the airway on a screen instead of directly
through the eyepiece. Video laryngoscopes may be beneficial
in cases of difficult airways or limited visibility.
22. Uses of Laryngoscope
➢ Before using the laryngoscope, the blade should be checked to ensure that it is
clean and free of any debris or damage. The light source should also be checked to
ensure proper illumination.
➢ The patient's head should be positioned appropriately to facilitate visualization of
the larynx. This may involve extending the neck and placing the patient in the
"sniffing position" to align the oral, pharyngeal, and laryngeal axes.
➢ The operator inserts the blade into the patient's mouth and gently lifts the tongue
and soft tissues to expose the larynx and vocal cords. The light from the
laryngoscope illuminates the area, providing a clear view for the operator.
➢ Once the larynx is visualized, an endotracheal tube or other airway device may be
inserted through the vocal cords for mechanical ventilation or airway management
23. Oral Airway
• An oral airway, also known as an oropharyngeal airway or
Guedel airway, is a medical device used to maintain or open a
patient's airway by preventing the tongue from obstructing the
airway.
• Purpose:
The primary function of an oral airway is to prevent the tongue
from falling back and obstructing the airway, which can occur in
unconscious or sedated patients.
25. Laryngeal Mask Airway
• Laryngeal mask airways (LMA) are supraglottic
airway devices. They may be used as a temporary
method to maintain an open airway during the
administration of anesthesia or as an immediate life-
saving measure in a patient with a difficult or failed
airway.
28. Suction machine
• A biomedical equipment use in OT to remove secretion and
fluids from surgical field and in anesthesia to remove secretion
from throat before intubation by using negative pressure in it
as same as vacuum cleaner in houses.
• A suction machine, also known as an aspirator, is a medical
device used to remove obstructions like mucus, saliva, blood,
or secretions from a person's airway.