Medical Gases, type of cylinder, color coding, sources of Gases and pin index

In this video we learn about
Medical Gases, type of cylinder, color coding, sources of Gases and pin index
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Medical gases are gases used in medical procedures. • Some are used for treatment, some for anesthesia, and some for driving medical devices and tools.
There are 7 kinds of gases commonly used: oxygen, nitrogen, nitrous oxide, argon, helium, carbon dioxide and compressed air (medical air) & medical vaccum
PURPOSE OF MEDICAL GAS Medical gases are used within hospital settings for many purposes. Oxygen, used to provide supplemental oxygen to the respiratory system ; in dentistry in combination with nitrous oxide ; and as an emergency standby.
Nitrous oxide, used as an anesthetic agent in surgery; mixed with oxygen to help patients relax during dental procedures; and in cryosurgery (the use of extreme cold to destroy tissue).
Nitrogen, used to provide pneumatic pressure in medical equipment; to prevent combustion and other chemical reactions; and as a component of many gas mixtures.
Carbon dioxide, used to
inflate areas of the body for "keyhole" surgery (small incisions made to accommodate surgical instruments ); mixed with air or oxygen to stimulate breathing; and in cryosurgery or testing tooth sensitivity in dentistry.
Medical air, used in administering breathing treatments and as a mixing component for other respiratory gases.
Helium, used in breathing mixtures for patients with impaired lung functions.
Medical gas syste COLOUR CODED
OXYGEN Oxygen is the most basic gas for life, and it is used medically to supplement oxygen to oxygen- deficient patients. • Direct inhalation of high purity oxygen is harmful to the human body.
Long-term use of oxygen concentration generally does not exceed 30-40%. Ordinary patients breathe oxygen through oxygen flowmeter; critically ill patients breathe oxygen through the ventilator. • Oxygen is also used in high-pressure tanks to treat diving, gas poisoning, and for drug nebulization.
Oxygen may be used for patients requiring supplemental oxygen via mask. • A large storage system of liquid oxygen at the hospital which is evaporated into a concentrated oxygen supply, pressures are usually around 345-380 kPa (50.0-55.1 psi)
This arrangement is described as a vacuum insulated evaporator or bulk tank. • In small medical centers with a low patient capacity, oxygen is usually supplied by a manifold of multiple high-pressure cylinders.
In areas where a bulk system or high- pressure cylinder manifold is not suitable, oxygen may be supplied by an oxygen concentrator. • However, on site production of oxygen is still a relatively new technology.
NITROUS OXIDE • Inhalation of a small amount of nitrous oxide has an anesthetic and analgesic effect, but a large amount of inhalation can suffocate people.
Medically, a mixture of nitrous oxide and oxygen is used as an anesthetic agent, and anesthesia is inhaled by the patient through a closed manner or a ventilator.
Nitrous oxide is supplied to various surgical suites for its anaesthetic functions during preoperative procedures. • It is delivered to the hospital in high-pressure cylinders and supplied through the Medical Gas system.
Some bulk systems exist, but are no longer installed due to environmental concerns and overall reduced consumption of nitrous oxide. System pressures are around 345 kPa (50.0 psi), 4 bar (400 kPa; 58 psi) UK.
CARBON DIOXIDE Medically, carbon dioxide is used to inflate the abdominal cavity and colon for laparoscopy and colonoscopy. • In addition, it is also used for laboratory culture of bacteria (anaerobic bacteria).
Carbon dioxide can be made into dry ice by applying pressure (5.2 atmospheres) and cooling (-56.6°C below). • Medical dry ice is used for cryotherapy to treat cataracts and vascular diseases.
non-toxic inert gas. Medically used for argon gas knife, gas knife, and other surgical instruments.
NITROGEN Nitrogen is a colorless, odorless, non-toxic, non-flammable gas. It is inactive at room temperature and does not react chemically with ordinary metals.
Nitrogen is used to drive medical equipment and tools. Liquid nitrogen is commonly used in cryosurgery in surgery, stomatology, gynecology, and ophthalmology.
Nitrogen is typically used to power pneumatic surgical equipment during various procedures, and is supplied by high- pressure cylinders. Pressures range around 1.2 MPa (170 psi) to various locations.
INSTRUMENT AIR/SURGICAL AIR Like nitrogen, instrument air is used to power surgical equipment. It is generated on site by an air compressor (similar to a medical air compressor) rather than high- pressure cylinders
MEDICAL VACUUM Medical vacuum in a hospital supports suction equipment and evacuation procedures, supplied by vacuum pump systems exhausting to the atmosphere.
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