GE Aestiva 5 Service Manual

							1 Introduction
1006-0939-0001-5
1-5
134°CAutoclavable
RBag position/ manual ventilationrMechanical ventilation
uOpen drain (remove liquid)UClose drain
qInspiratory flowQExpiratory flow
tO2 sensor connection End case
The primary regulator is set to pressure 
less than 345 kPa.The primary regulator is set to 
pressure less than 414 kPa.
European Union Representative 
						

							Aestiva 
1-61006-0939-000
Maintenance summary and schedule
These schedules show the minimum frequency. You will have to service the 
equipment more frequently if you use it:
•In unusual conditions (dirty gas supplies, high temperature, high humidity, 
etc.).
•More frequently than normal.
Operator maintenanceExamine all components and do the maintenance procedures more frequently 
if necessary.
Minimum 
Frequency
Maintenance
Daily • Clean the external surfaces.
•21% O
2 calibration (circuit O2 sensor).
•Flow sensor calibration
Two weeks • Drain the vaporizers and discard the agent. This is not 
necessary for Tec 6 vaporizers.
Monthly • 100% O
2 calibration (cIrcuit O2 sensor).
•Put Krytox (or a lubricant approved for use with 100% 
O
2) on all tee handle threads.
During cleaning 
and setup•Inspect the parts for damage. Replace or repair as 
necessary
Annually • Replace the external o-rings on the vaporizer ports.
As necessary • Install new cylinder gaskets on cylinder yokes.
•Replace the absorbent in the absorber.
•Drain the breathing system.
•Drain the breathing circuit module.
1
•Drain the overflow trap on the optional suction 
regulator.
•Replace the circuit O
2 sensor.
•Replace the disposable flow sensors (plastic) 
2
•Replace the autoclavable flow sensors (metal)3.
•Replace the receiver filter (active gas scavenging only).
1. This is included in the preoperative test procedure.
2. Under typical use the sensor meets specifications for 3 months 
3. Under typical use the sensor meets specifications for 1 year. 
						

							1 Introduction
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1-7
Datex-Ohmeda approved
service
Minimum
Frequency Maintenance
6 months Have an approved service person do the service tests 
and scheduled service maintenance. 
						

							Aestiva 
1-81006-0939-000 
						

							1006-0939-0002-1
2-1
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Obey applicable safety precautions:
•During the cleaning of the liquid collecting tray, avoid skin or eye contact with 
the contents of the absorber. In the event of skin or eye contact, immediately 
rinse the affected area with water and seek medical assistance.
•Read the material data sheet for each cleaning agent.
•Read the operation and maintenance manual for all sterilization equipment.
•Wear gloves and safety glasses. A damaged O
2 sensor can leak and cause 
burns (contains potassium hydroxide).
•Do not breathe the fumes.
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To prevent damage:
• Refer to the manufacturer’s data if you have questions about a cleaning agent.
•Do not use organic, halogenated, or petroleum based solvents, anesthetic 
agents, glass cleaners, acetone, or other harsh cleaning agents.
•Do not use abrasive cleaning agents (such as steel wool, silver polish or 
cleanser).
•Keep all electronic parts away from liquids.
•Do not permit liquid to go into the equipment housings.
•Do not soak synthetic rubber parts for more than 15 minutes. Swelling or faster 
aging can occur.
•Only autoclave parts that are marked 134°C.
In this sectionSummary   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Clean and sterilize   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
Disassemble the patient path  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  2-7
Canister disassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  2-10
Disassemble the scavenging path   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  2-12
How to clean and disinfect the flow sensors   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  2-13
How to clean and sterilize the optional CO
2 bypass assembly  . . . . . . . . . . . . . . . . .  2-15
2 Cleaning and Sterilization 
						

							Aestiva
2-21006-0939-000
2-2
Summary
Patient pathThe parts in Figure 2-1 send exhaled gas back to the patient. They may require 
more frequent cleaning/sterilization than parts in Figure 2-2. Refer to your 
hospital’s infection control policy.
Figure 2-1 • These parts return exhaled gas to the patient
Autoclave (134°C) or
If plastic, refer to cleaning/disinfection
Wipe with a damp cloth. wash (mild detergent pH 
						

							2 Cleaning and Sterilization
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Scavenging path
Figure 2-2 • These parts do not send gas back to the patient
Autoclave (134°C) or
 
wash (mild detergent pH 
						

							Aestiva
2-41006-0939-000
2-4
Clean and sterilize
The Disassembly part of this section tells you how to remove parts for 
cleaning.
To wash (by hand or
machine)
Use a mild detergent (pH 
						

							2 Cleaning and Sterilization
1006-0939-0002-5
2-5
 Autoclave
Autoclave at 134°C. Inspect the parts for deterioration. The User Maintenance 
section tells you how to do this. 
Patient path
Scavenging path
Upside down
AB.23.087
AB.23.086 AB.23.083
Metal Only
  
						

							Aestiva
2-61006-0939-000
2-6
Special requirements
•To clean the circuit O2 sensor, wipe it with a damp cloth. Do not put the sensor 
in liquid.
•To clean/disinfect metal/or plastic flow sensors, use the flow sensor 
cleaning procedure. Do not get the connectors wet.
•Disassemble the bellows before you wash it. If not, it will take a very long time 
to dry. Hang the bellows upside down to dry.
•Assemble the bellows before you autoclave. Autoclave the bellows upside 
down.
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Do not use talc, zinc stearate, calcium carbonate, corn starch or 
equivalent materials to prevent tackiness. These materials can go 
into the patient’s lungs and airways and cause irritation or injury.
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Do not put the circuit O2 sensor or flow sensor connector in liquid. 
wDo not autoclave the Circuit O2 sensor or the plastic flow sensors. 
wDo not clean the interior surfaces of the flow sensors. Use a damp 
cloth
 on external surfaces only. 
AssembleThe Setup section tells you how to assemble the breathing system. 
Inspect all parts for deterioration. Replace them if necessary. 
The Preoperative tests in Part 1 (the first half of this manual), tell you how to 
test the system for correct operation.
AB.23.088
* Hang the bellows upside down
 (extended) to dry. If not, the
convolutions can stick together.*