An anesthesia machine provides general anesthesia by carefully controlling the dosage of drugs delivered to patients. It consists of oxygen, a precision vaporizer that produces anesthetic vapor, breathing circuits, a ventilator, and a CO2 absorber. The machine induces narcosis, or unconsciousness, through inhalation of anesthetic gases, allowing surgery or procedures to be performed painlessly. It works by temporarily disconnecting sensory nerve signals through selective administration of drugs in measured amounts, maintaining the patient in a stable unconscious state before recovery.

1. ANESTHESIA MACHINE
SIR SYED UNIVERSITY OF ENGINEERING AND
TECHNOLOGY
SYED HAMMAD
AKHTER
2012-BM-071
PRESENTED TO
ENGR. FAHAD
AKBER

2. Anesthesia is the total loss of
feeling or sensation.
It is primarily associated with the
loss of painful sensations, which
allows surgery or procedures to be
performed without causing pain.
Also called Drug delivery system
Proper dosage of drug is applied to
patient
Temporary disconnection of
sensory nerve signals

3. There are various forms of anesthesia.
Local
anesthesiaLocal anesthesia is medication given to temporarily
stop
the sensation in a particular area of the body.
Regional anesthesia
Regional anesthesia means numbing only the portion of the
body
which will be operated on. Usually an injection of local
anesthetic
is given in the area of nerves that provide feeling to that part of
the body.
a) Spinal Anesthesia
b) Epidral Anesthesia
General
anesthesiaGeneral anesthesia causes a patient to be unconscious
during
surgery. The medication is either inhaled through a
breathing
mask or tube, or administered through an intravenous (IV)
line –
A thin plastic tube inserted into a vein. A breathing tube may
be

4. Consist of
Oxygen , O2 flow meter , precision vaporizer which
produces a vapor from a liquid.
Breathing circuit (tubing)
Ventilator
Co2 absorber.

5. Narcosis
Refers to the process of sedation or
unconsciousness induced by a
narcotic drug
Ways to provide
Orally
By injection (regional)
By inhalation (general)
States of Process
Select amount of drug to give
patient
Reaction starts according to
selected amount
Stability of unconscious state then
recovery of patient into concise state
Amount of drug determine time of
conscious
500ml tidal volume is maintained
Amount of inhalation depends on BMI of
patient