Central Medical Gas Distribution System MedicalGasDistributionSystemisacentralsupplysystemtosupplyamedicalgas(O2,N2O,N2),medicalair,andmedicalvacuumtoeachwardofhospitalsafelyandconvenientlythroughacentralsupplypipingfrommedicalgassupplysources. •Thesystemhasathoroughgoingcolorcoordinationaccordingtothekindofgas. •Anaudio-visualmonitoringsystemcapableofcheckingthesituation

1. Central Medical Gas
Distribution System
PRESENTATION BY:
• AIMAN NASEEM
• HAMZAH MERAJ
• SARAH MADIHA
M.ARCH (FIRST SEMSTER)
HEALTH CARE ARCHITECTURE
( CONTEMPORARY TECHNOLOGIES )

2. • Medical Gas Distribution System is a central supply
system to supply a medical gas (O2, N2O, N2),
medical air, and medical vacuum to each ward of
hospital safely and conveniently through a central
supply piping from medical gas supply sources.
• The system has a thoroughgoing color coordination
according to the kind of gas.
• An audio-visual monitoring system capable of
checking the situation.
WHAT IS CENTRAL MEDICAL GAS DISTRIBUTION SYSTEM?
Presented by : AIMAN NASEEM 1

3. ADVANTAGES OF CENTRALISED MEDICAL GAS
DELIVERY SYSTEM
• No distressing sign of oxygen cylinder at bed
side.
• Elimination of noise produced by their
movement.
• Protection of sterile areas from
contamination caused by use and movement
of cylinder.
• Uninterrupted and clean gas supply at each
work station.
• Safe And Relief System
• Effective use of space. Additionally it is
economically advantageous and hygienic.
Presented by : AIMAN NASEEM 2

4. TYPES OF MEDICAL GASES
• Oxygen- used for respiratory therapy and life-support
and is additionally used in anaesthetic procedures.
• Medical air-This is supplied by a specialized air
compressor to patient care areas. Used extensively in
the ICU, PICU, and NICU areas, to reduce the risk of
excess oxygen in the lungs, during surgical procedures.
• Surgical air is used, at a higher pressure, to power a
variety of surgical tools and other devices.
• Nitrous oxide is used for anaesthetic and analgesic
purposes.
• Helium/oxygen mixture is used to treat patients with
respiratory or airway obstruction.
•Carbon dioxide in used in the medical world to aid
laparoscopic examination. The carbon dioxide inflates the
stomach slightly which simplifies internal visibility inside
the abdomen.
• Piped vacuum or Suction is provided by means of
centrally sited vacuum pumps & supports evacuation
procedures.
Presented by : AIMAN NASEEM 3

5. Operation Theatre O2, N2O, CA, MA, Vac
Cath Labs O2, CA, Vac
Intensive Care Beds O2, CA, Vac
Recovery Beds O2, CA, Vac
General Beds O2, CA, Vac
The functional areas of the proposed building
where in, the Medical gas shall be required is as
follows:
COLOUR CODINGUSAGE OF MEDICAL GASES
4Presented by : AIMAN NASEEM

6. MEDICAL GAS PIPELINE SYSTEM
COMPONENTS
1. Medical Oxygen plant.
2. Medical Nitrous oxide plant.
3. Medical compressed air plant.
4. Vacuum plant.
5. Medical gas pipeline.
6. Terminal units.
7. Pressure Regulators.
8. Shutoff valves.
9. Monitoring and alarm system.
Presented by : AIMAN NASEEM 5

7. 3. MONITORING & ALARM SYSTEM
The system always monitors the remains
of medical gas, troubles of machines,
and abnormalities in pressure in a lump
to perfectly operate equipment which
directly link to life.
2 types:
• Area alarm : monitor pipeline
pressure within a ward, ot etc.
• Master alarm panel : provides
continuous monitoring of medical gas
installations across hospitals .
1.MEDICAL GAS PIPELINE
A pipeline system is a system that
includes;
 The pipeline network
 The control unit and
 The piped material should be copper
seamless tubes.
Presented by :AIMAN NASEEM 6
2. SHUT OFF VALVE
• Shut off valve system is
used on each floor of the
hospital or on the entrance
of the gas port of the
operation room
• It main has two functions:
To reduce gas pressure and
to shut off gas pipes.

8. 4. TERMINAL GAS OUTLETS
These terminal gas outlets are colour-coded, labelled with gas name
and have self-sealing sockets.
Gas specificity- The terminal unit shall only accept the probe for the
gas for which it is intended.
Presented by :AIMAN NASEEM 7

9. Medical Hanger
TYPES OF TERMINAL GAS OUTLETS
Hanging From Ceiling
Type Outlet
Ceiling column & pendent
Embedded Type Outlet
Wall Mounted Type Outlet
Plug
Bedhead Unit
Presented by :AIMAN NASEEM 8
Outlets can be installed as flush fitting units, surface-fitting units on booms or pendants,
suspended on a hose and gang mounted.
Trolley Stand

10. 4. GAS MANIFOLD
Gas manifolds are designed to supply the pipeline
system with sufficient quantity of gas by cylinders
and/or tanks.
The typical manifold for medical gases usually
consists of a two-sided cylinder supply with
automatic changeover between the empty and full
side, and an additional third source for emergency
supply.
MANIFOLD ROOM
 Consists of a cylinder manifold and a control
panel
 Manifold can be of 2 banks of 2 cylinders each or
2 banks of 20 cylinders each.
 Control panel: primary and secondary pressure
regulations: warning lamp.
Presented by: AIMAN NASEEM 9

11. Cylinder ManifoldGas Cylinders
Gas Manifold Plant Room for 100 bedded hospitalPresented by :AIMAN NASEEM 10

12. 12
“MEDICAL GAS PIPELINE SYSTEM COMPONENTS”
CROSS SECTION-MEDICAL GAS PIPELINE SYSTEM
HAMZAH MERAJ

13. PIPELINES
PLANTS & MANIFOLD
13
CROSS SECTIONAL VIEW OF THE MANIFOLD ROOM
HAMZAH MERAJ

14. GAS OUTLETS
BED HEADS
PIPELINES
SHUTOFF VALVES
14
CROSS SECTIONAL VIEW OF THE OT
HAMZAH MERAJ

15. MEDICAL GAS ALARM
BED HEADS
15
CROSS SECTIONAL VIEW OF THE WARDROOM & NURSING STATION
HAMZAH MERAJ

16. ON SITE GAS PRODUCTION
• Oxygen is produced onsite, instantaneously
from ambient air freely available.
• The medical oxygen generator come with
oxygen purity monitoring device which
ensure oxygen produced is within the
acceptable purity limits.
WHY CHOOSE ONSITE GAS GENERATORS?
16
HAMZAH MERAJ

17. THE PRESSURE SWING ADSORPTION
(PSA) PRINCIPLE
• PSA (pressure swing adsorption) is an
economical alternative for onsite
production of oxygen for medical use
and is in use for over 30 years in the
medical industry.
17
• Ambient air entering the compressors is 78% nitrogen, 21%
oxygen, less than 1% argon and other gases.
• As nitrogen is separated, the resulting product gas is up to
95.5% oxygen purity.
HAMZAH MERAJ

18. 18
THE PRESSURE SWING ADSORPTION PROCESS
HAMZAH MERAJ

19. CAPACITY- 900 LITRE FEATURES
1. • Produces oxygen from
compressed air
2. • Microprocessor controlled
3. • Low operating cost
4. • Automatic and unattended
operation
5. • Easy to install and maintain
19
HAMZAH MERAJ

20. CAPACITY- 5500 LITRE FEATURES
1. • Produces oxygen from
compressed air
2. • Microprocessor controlled
3. • Low operating cost
4. • Automatic and unattended
operation
5. • Easy to install and maintain
20
HAMZAH MERAJ

21. 21
HAMZAH MERAJ
CASE STUDY
BHAWGAN MAHVIR HOSPITAL, PITAMPURA DELHI

22. 22
6M X 6M
12M X 6M
RAMP LEADING
TO BASEMENT
CASE STUDY-GAS MANIFOLD ROOM
BHAWGAN MAHVIR HOSPITAL, PITAMPURA DELHI
HAMZAH MERAJ

23. CASE STUDY-GAS MANIFOLD ROOM
BHAWGAN MAHVIR HOSPITAL, PITAMPURA DELHI
MANIFOLD ROOMGAS GENERATORS
GAS PIPELINES MANIFOLD ROOMHAMZAH MERAJ

24. HAMZAH MERAJ
CROSS SECTIONAL VIEW LAYOUT

25. NEGATIVE PRESSURE FACILITY (AIR CLEAN DEVICE)
1. In clean areas such as an operating theatre, an air
conditioner using HEPA (high-efficiency particulate
air) filters is fully equipped and it is designed that the
air should flow from the room of high purity to the
room of low purity.
2. Negative Pressure Facility circulates a part of the air
and consequently the Facility also has a function of
an air cleaner.
SARAH MADIAH

26. 26
ANAESTHETIC GAS SCAVENGING SYSTEMS
• These systems are used to remove anesthetic gases directly
from patient connection of Anesthesia Machine.
• A SCAVENGER SYSTEM is a medical device used in hospitals. It
is used to gather gas after it is exhaled from the patient or left
the area of the patient.
• In the Operating Room the Anesthetic Gas Scavenging System
collects and removes waste gases from the patient breathing
circuit and the patient ventilation circuit.
TYPES
• Scavenging may be active (suction applied) or passive (waste
gases proceed passively down corrugated tubing through the
room ventilation exhaust grill of the OR).
SARAH MADIAH
SCAVENGING
SYSTEMS
ACTIVE PASSIVE

27. • Gas collection assembly
• Transfer tubing
• Scavenging interface
• Gas disposal tubing
• Gas disposal assembly.
27
COMPONENTS OF THE SCAVENGER SYSTEM:
SARAH MADIAH

28. **DESIGN CONSIDERATION SOURCES
MEDICAL GAS SAFETY- NFPA
IS CODE - IS/ISO 9170-1 : 2008
 Designated area should have proper ventilation.
 Location should be chosen in such a manner so as to
permit access by delivery vehicles and transportation of
cylinders ( e.g. proximity to loading docks, access to
elevators, passage of cylinders through public areas ).
 If the gases are planned to be located indoors then care
must be taken to avoid the following areas.
1. Area involved in critical patient care.
2. Locations storing flammables
3. Kitchens
 If the facility is planned outdoors, an enclosure
(wall or fencing) must be constructed of non- combustible
materials, as the gases used in medical facilities help in
combustion.
 If it is planned indoors, it should be constructed while
using interior finishes of non-combustible or limited
combustible materials so that all walls, floors, ceilings
and doors can withstand a minimum of one hour fire.
 Electrical devices must be located at or above
1520mm (5ft) above finished floor to avoid physical
damage.
 Racks, chains , or other fastening should be provided
to individually secure all cylinders, whether
connected, unconnected, full , or empty, from falling.
CENTRAL GAS SUPPLY DESIGN CONSIDERATION
SARAH MADIAH

29. **DESIGN CONSIDERATION SOURCES
MEDICAL GAS SAFETY- NFPA
IS CODE - IS/ISO 9170-1 : 2008
GAS PIPELINE GUIDELINES
1. Pipelines and electrical services shall either
a) run in separate compartments, or
b) be separated by more than 50 mm
2. If pipelines are placed underground, they shall be placed in tunnels or ducts.
3. All pipelines for medical gases shall be routed in such a way that they are not exposed to a temperature less than 50 C
above the dew point of the gas at pipeline pressure.
Maximum intervals between supports for gas pipes
SARAH MADIAH

30. THANK YOU