GE Healthcare Aestiva/5 Operation Manual - Part 2 Software Revision 4.
User Responsibility This Product will perform in conformity with the description thereof contained in this Operation manual and accompanying labels and/or inserts, when assembled, operated, maintained, and repaired in accordance with the instructions provided. This Product must be checked periodically. A defective Product should not be used. Parts that are broken, missing, plainly worn, distorted, or contaminated should be replaced immediately.
Table of Contents 1/Introduction How to use this manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2 i Symbols used in the manual or on the equipment . . . . . . . . . . . . . . . . . . . . 1-3 Maintenance summary and schedule . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6 Operator maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6 Datex-Ohmeda approved service . . . . . . . . . . . . . . . . . . . . . . .
Aestiva 4/User Maintenance ii Repair policy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-2 Manifold maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-3 Expiratory valve maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-6 Receiver maintenance (active gas scavenging only) . . . . . . . . . . . . . . . . . .4-8 Flow sensor maintenance . . . . . . . . . . . . . . . . . .
Table of Contents Breathing system schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-7 iii Electrical block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-8 Pneumatic circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-9 Suction regulators (optional) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-12 O2 flowmeter (optional). . . . . . . . . . . . . . . . . . . . . . .
Aestiva iv iv 1006-0939-000
1 Introduction In this section 1-1 How to use this manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2 Symbols used in the manual or on the equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3 Maintenance summary and schedule . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Aestiva How to use this manual This is part two of the Aestiva operation and maintenance manual. It tells you how to: • Remove and clean parts • Set up the system • Identify and replace worn or damaged parts • Calibrate the O 2 sensor The second half of this section is a maintenance schedule. The last section, troubleshooting, tells you what causes each alarm and what you can do about it. Use this manual together with Part 1, which includes the operating instructions and preoperative checkout.
1 Introduction Symbols used in the manual or on the equipment wWarnings and wCautions tell you about dangerous conditions that can occur if you do not follow all instructions in this manual. 1-3 Warnings tell about a condition that can cause injury to the operator or the patient. Cautions tell about a condition that can cause damage to the equipment. Read and follow all warnings and cautions. Other symbols replace words on the equipment or in Datex-Ohmeda manuals.
Aestiva å Y Alarm silence button SN Serial Number Equipotential Systems with this mark agree with the European Council Directive (93/42/EEC) for Medical Devices when they are used as specified in their Operation and Maintenance Manuals. The xxxx is the certification number of the Notified Body used by DatexOhmeda’s Quality Systems.
1 Introduction 134°C R u q t Autoclavable Bag position/ manual ventilation Open drain (remove liquid) Inspiratory flow r U Q 1-5 Mechanical ventilation Close drain Expiratory flow O2 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.
Aestiva 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 maintenance Examine all components and do the maintenance procedures more frequently if necessary. Minimum Frequency Maintenance Daily • Clean the external surfaces. • 21% O2 calibration (circuit O2 sensor).
1 Introduction Datex-Ohmeda approved service Minimum Frequency 6 months 1006-0939-000 1-7 Maintenance Have an approved service person do the service tests and scheduled service maintenance.
Aestiva 1-8 1006-0939-000
2 Cleaning and Sterilization 2-1 w WARNING 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.
Aestiva Summary Patient path The 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. Autoclave (134°C) or wash (mild detergent pH <10.5) AB.23.003 2-2 * If plastic, refer to cleaning/disinfection procedure. If metal, autoclave (134°C) AB.23.079 Wipe with a damp cloth.
2 Cleaning and Sterilization 2-3 Autoclave (134°C) or wash (mild detergent pH <10.5) AB.23.080 AB.23.
Aestiva Clean and sterilize The Disassembly part of this section tells you how to remove parts for cleaning. 2-4 To wash (by hand or machine) AB.23.085 Patient path AB.23.083 Scavenging path Use a mild detergent (pH <10.5). Then, rinse and dry completely. All parts except the O2 sensor, and flow sensors can be washed. User maintenance tells you how to disassemble parts and clean inside them if necessary.
2 Cleaning and Sterilization Autoclave Patient path 2-5 AB.23.087 Metal Only AB.23.086 Upside down AB.23.083 Scavenging path Autoclave at 134°C. Inspect the parts for deterioration. The User Maintenance section tells you how to do this.
Aestiva Special requirements * AB.23.088 2-6 * Hang the bellows upside down (extended) to dry. If not, the convolutions can stick together. • 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.
2 Cleaning and Sterilization Disassemble the patient path 2-7 Step 1 AA.96p.009 Open the access panel. Step 2 AA.96p.010 Push up on the latch located under the flow sensor module. Step 3 AA.96p.011 Remove the flow sensor module. You will feel some resistance. Continue to pull. Step 4 AA.96p013, 014 Disconnect the cable and remove the O2 sensor.
Aestiva Step 5 Completely loosen the thumbscrew on the breathing circuit module. AA.96p016 2-8 Step 6 AA.96p017 Remove the module. You will feel some resistance. Continue to pull. Step 7 AA.96p018 Push the metal button to the first stop. Pull out the bag arm. Step 8 AA.96p020 Push the metal button to the second stop and open the top panel.
2 Cleaning and Sterilization Step 9 Push the release button and remove the bellows assembly (pull up). AA.96p021, 23 2-9 Step 10 AA.96p024 Remove the main manifold. Autoclave assemblies marked 134°C. Refer to the Section “Clean and sterilize” for complete instructions. To assemble the circuit refer to the Setup section.
Aestiva Canister disassembly w CAUTION 2-10 To prevent damage, pull the release handle forward. Then turn the handle Step 1 AA.96p026 Pull the release forward. wZ Step 2 AA.96p028 Turn the release clockwise. Step 3 AA.96p029 Pull down and out on the canisters.
2 Cleaning and Sterilization Step 4 Push in the buttons on each side of the top dish. AA.96p053 2-11 Step 5 Lift up the drain dish. AA.96p054 Remove the top dish and drain dish. Continue with the next section or go to "Clean and sterilize". To assemble, refer to the Setup section.
Aestiva Disassemble the scavenging path These parts send exhaled gas to the disposal system, not the patient. Exhalation valve Complete the basic disassembly procedure. AB.23.089 Push in the latches and pull out the exhalation valve. Scavenging reservoir Loosen the knob and remove the rear cover. Pull the reservoir up and to the rear. Twist and pull down to remove the tube. AB.23.
2 Cleaning and Sterilization How to clean and disinfect the flow sensors wCAUTION Do not autoclave plastic flow sensors. 2-13 w Do not use high-pressure gas, or brushes to clean the flow sensors. w Do not use cleaning solvents that are not approved for use with Polycarbonates (e.g. CIDEX Plus). CIDEX sterilization Both Datex-Ohmeda and the manufacturer of CIDEX (Johnson & Johnson) have tested this procedure.
Aestiva 2-14 Step 2 Steps 3 and 4 Steps 5, 6 and 7 Step 8 Dry for > 1 min with these precautions: • Maximum vacuum 30 in Hg • Maximum flow 10 L/min • Maximum pressure 345 kPa (50 psi) Figure 2-3 • Steps 2-8 2-14 1006-0939-000
2 Cleaning and Sterilization How to clean and sterilize the optional CO2 bypass assembly These instructions assume that the system has the optional CO 2 bypass feature installed. 2-15 Step 1 Remove the absorber canisters. (Also described in “Canister disassembly” in this section.) a. Pull the canister release handle forward. w CAUTION To prevent damage, pull the canister release handle forward before turning the handle. b. Turn the release handle clockwise. c. Lift out the canisters.
Aestiva Step 4 2-16 Clean and sterilize the bypass assembly: a. Immerse the assembly into a solution of mild detergent and water. b. Agitate the assembly in the solution while repeatedly actuating and releasing the plate. c. Rinse the assembly by immersing it in clean water and agitating it again with the plate actuated and released. d. Autoclave the assembly at 134°C. e. Cool about 40 minutes at room temperature.
2 Cleaning and Sterilization Step 6 Reinstall the canisters: a. Ensure seals and rim are free of soda lime dust. b. Place the canisters in the drain dish. c. Turn the canister release handle counterclockwise to its locked position while gently applying pressure on the canisters to hold them against the canister guides. Step 7 Test the Bag circuit for leaks according to the Breathing System tests in the Appendix section of Part 1 of the Operation manual.
Aestiva 2-18 2-18 1006-0939-000
3 Setup and Connections Important Important Important Datex-Ohmeda strongly recommends that you use O2 monitoring with this equipment. Refer to local standards for mandatory monitoring. European Standard EN 740 requires anesthetic agent monitoring when anesthetic vaporizers are in use. European Standard EN 740 requires CO2 monitoring during ventilation.
Aestiva Breathing system setup To assemble the patient circuit, start at step 5. Install the main manifold. Step 2 AA.96p022 Install the Bellows. • Make sure the release button aligns correctly. Step 3 AA.96p012 Gently close the control panel. Step 4 Install the bag arm. • Install a rebreathing bag on the bag arm. 3-2 AA.96p019 3-2 AA.
3 Setup and Connections Step 5 Look at the tabs on the rear or the label on the front. AB.23.211 Identify the breathing circuit module (Circle or Mapleson). Circle Mapleson 3-3 Step 6 AA.96p017 Install the breathing circuit module. You will feel some resistance. Continue to push. Step 7 AA.96p016 Completely tighten the thumbscrew. Install the O2 sensor. • Completely tighten the sensor. • Connect the cable. 1006-0939-000 AA.
Aestiva Step 9 AA.96p011 Step 10 Close the front panel. AA.96p009 Step 11 Circle Module AB.23.104 Connect the patient circuit. Mapleson D / Bain Module To-fro AB.23.152 3-4 Install the flow sensor module. • You will hear a “click” when it locks into position. • Refer to Note 1 or the User Maintenance section.
3 Setup and Connections Note 1 Flow sensor assembly AA.96p038 AA.
Aestiva Canister setup Each canister holds 1.35 kg of loose absorbent or 1.13 kg of commercially packaged (pre-pack) absorbent. Datex-Ohmeda recommends Sodium or Barium hydroxide based absorbent. 3-6 w WARNING Change absorbent often to prevent the build up of non-metabolic gases when the system is not in use. Inspect absorbent at the end of a case. During non-use, absorbent can go back to the original appearance. Refer to the absorbent labeling for more information about color changes.
3 Setup and Connections Step 3 Pull down to make sure the top dish is locked in place. AA.96p054 Push in the buttons and install the top dish and drain dish. 3-7 Fill the canisters with absorbent and install them. Push down on the drain dish if necessary. AA.96p029 Step 4 Step 5 AA.96p028 Turn the release counter-clockwise. Step 6 AA.96p026 Push in the release.
Aestiva Pneumatic and electrical connections wWARNING Equipment connected to the electrical outlets can increase the leakage current. Regularly test the leakage current. 3-8 wCAUTION Use only medical grade gas supplies. Other types of gas supplies may contain water, oil, or other contaminants. The Aestiva gas supplies also supply these devices through internal connections: • The venturi suction regulator (optional) • The external O2 flowmeter (optional) • Ventilator drive gas • Pneumatic outlets AA.96.
3 Setup and Connections Pipeline inlets AA.96.116 Label identifies the gas. 3-9 Pneumatic outlet AA.96.116 Labels identify the gas. Note: The outlet pressures range from pipeline pressure to 550-690 kPa when cylinder supplies are used. Adapters may be necessary. Refer to the Illustrated Parts section. 1006-0939-000 AA.96.
Aestiva Suction regulator Optional item. External vacuum (non-venturi) Filter AA.96.172 Patient Collection Bottle External O2 flowmeter AA.96.045 Optional item. Serial port Refer to the communications appendix for command and data formats. 3-10 AA.96.116 3-10 Note: Venturi regulators use the system Air or O2 supply. Standard regulators must be connected to an external vacuum supply.
3 Setup and Connections How to install gas cylinders (high-pressure leak test) 1. Find the cylinder wrench. AA.96.123 Cylinder yokes 3-11 AA.96.122 2. Close the cylinder valve on the cylinder to be replaced. AA.96.124 3. Fully loosen the tee handle. AA.96.125 4. Open the cylinder yoke. AA.96.126 5. Remove the used cylinder and the used gasket. 6. Remove the cap from the cylinder valve on the new cylinder. 7.
Aestiva w CAUTION No gasket or more than one gasket can cause a leak. 9. Install a new gasket. 10.Align the cylinder post with the index pins. 11.Close the yoke gate and tighten the tee handle. 3-12 12.Install a cylinder plug and gasket in all empty cylinder yokes. 13.Do a high-pressure leak test: • Disconnect pipeline supplies. • Disconnect all equipment from the pneumatic outlet and turn Off the auxiliary flowmeter. • Set the system switch to Standby. • Open the cylinder. • Record the cylinder pressure.
3 Setup and Connections 5. Open and immediately close the cylinder valve to remove dirt or contaminants. 6. Do a high pressure leak test: • Disconnect pipeline supplies. • Disconnect all equipment from the pneumatic outlet and turn Off the auxiliary flowmeter. • Set the system switch to Standby. • Open the cylinder. • Record the cylinder pressure. • Close the cylinder. • If the cylinder pressure decreases more than 690 kPa in one minute, there is a leak. To repair a leak: • Tighten the cylinder connection.
Aestiva How to install the gooseneck lamp (12 V) WARNING Use ONLY 2.4 Watt bulbs. Higher wattage bulbs can get hot enough to burn wW you. 3-14 AA.96.173 1. Align the connector with the cable towards you. 2. Push the connector firmly into the socket until you hear a click. 3. Move the light into position.
3 Setup and Connections How to attach equipment to the top shelves The basic system has two straps for equipment. Accessory shelves use clips and straps. w CAUTION Each accessory shelf has a weight limit of 23 kg (50 lb). 3-15 w Systems without accessory shelves have a weight limit of 23 kg (50 lb). 1. Install or find the clips: AA71.145 • With an accessory shelf, install the clips in the two slots nearest to the equipment. AA.96.130 • Systems without accessory shelves have the clips attached.
Aestiva 2. Install the straps: • With an accessory shelf: Large equipment. Loop one time (A, B, C) B A AA.50.015 3-16 C A B C Small equipment. Loop two times (A, B, C, D) A D B A B C C • Without an accessory shelf: C AA.96.135 D B A 3. Fully tighten the straps. 4. Make sure that the straps hold the equipment in position. w WARNING If you do not fully tighten the strap, equipment can fall off the shelf.
3 Setup and Connections How to install equipment on the foldout shelf This is a hidden shelf for equipment that you do not need to look at, adjust, or touch. To access the shelf, you must remove the cylinders. 1. Make sure you have a cylinder wrench (if necessary). 2. Close the valves on all gas cylinders. 3-17 AA.96.118 3. Remove all gas cylinders. AA.96.120 AA.96.119 4. Loosen the thumbscrews and open the rear door. 5. Put the equipment on the shelves. AA.96.114 6.
Aestiva Installation notes When the system is installed the service representative will check these settings and change them if necessary. WARNING These settings can only be changed by Qualified Service personnel. wW 3-18 • Language • Power up defaults: When you turn the system off, should it save the current settings or go back to the facility defaults. • Automatic calculation of ◊E alarm limits during mechanical ventilation.
4 User Maintenance w WARNING TO PREVENT FIRES: 4-1 1 • Use lubricants approved for anesthesia or O2 equipment, such as Krytox® . • Do not use lubricants that contain oil or grease. They burn or explode in high O2 concentrations. • All covers used on the system must be made from antistatic (conductive) materials. Static electricity can cause fires. w WARNING In this section Obey infection control and safety procedures. Used equipment may contain blood and body fluids. Repair policy . . . . . . . . . .
Aestiva Repair policy Do not use malfunctioning equipment. Make all necessary repairs or have the equipment serviced by an authorized Datex-Ohmeda service representative. After repair, test the equipment to ensure that it is functioning properly, in accordance with the manufacturer’s published specifications. To ensure full reliability, have all repairs and service done by an authorized DatexOhmeda service representative.
4 User Maintenance Manifold maintenance Complete the basic disassembly (Refer to the Cleaning and Sterilization section). AB.23.094 Step 1 4-3 Remove the diaphragm. Replace it if: • The disk, cage, or diaphragm is damaged. • The diaphragm looks worn. • The diaphragm fits over the rim. AB.23.069 Step 2 (APL valve)1 Loosen the thumbscrew and remove the plate. • Replace the seal if damaged or worn. 1006-0939-000 AB.23.
Aestiva Step 4 (Seals con.) AB.23.073 Loosen the thumbscrews. 4-4 Step 5 (Seals con.) AB.23.074 Open the manifold (top middle, and bottom parts). Replace the parts if they are damaged or worn. Side Top 4-4 AB.23.071 Step 6 (Seals con.
4 User Maintenance Step 7 (Bag/Vent)2 Replace the parts if they are damaged or worn. AB.23.077 4-5 Step 8 AB.23.075 Put the parts together • Make sure all gaskets are fully seated. • Fully tighten the thumbscrews. 1. When you turn the APL knob, you change the pressure that is necessary to push the disk up and permit gas to exit. 2. The Bag/Vent switch pushed down plungers to close the other path. In the Bag position, the vent path is closed, etc.
Aestiva Expiratory valve maintenance Disassemble the manifold and examine the seals at 12 autoclave cycles. These conditions indicate a possible leak in the exhalation valve: • A decrease in airway pressure during the inspiratory pause in the volume control mode of ventilation. • Alarms for low tidal volume. • The ventilator circuit has a leak, but the bellows pass the bellows tests in this section. 4-6 Step 1 AB.23.089 Remove the exhalation valve (Cleaning and Sterilization section). Step 2 AB.23.
4 User Maintenance Step 3 AB.23.072 Unscrew the lock ring (one quarter turn) and remove the cap. 4-7 Step 4 AB.23.021 Put the parts together • Align the dimples in the cap with the valve seat. • To install the top, align it with the base and push down. Dimples Before you use the system, complete the preoperative test procedure. Refer to "Appendix - Preoperative Tests" section of Part 1 of the Operation Manual.
Aestiva Receiver maintenance (active gas scavenging only) A blocked filter decreases flow through the scavenging system. In extreme cases this can open the high-pressure relief valve and vent to room air. Note: Passive gas scavenging does not require maintenance. Step 1 AB.23.091 Remove the receiver: • Loosen the thumbscrew. • Remove the rear cover. • Pull out and up on the receiver. Step 2 Replace the filter (friction fit with gasket). AB.23.
4 User Maintenance Flow sensor maintenance Step 1 4-9 AA.96p.037 Remove the flow sensor module (Cleaning and Sterilization section). Push in the tab and remove the cover. Step 2 Keep the tubes straight. AA.96p.039 Install the new sensor with the arrows up. Step 3 AA.96p.038 Slide on the cover. Do not pinch the tubes. Before you use the system, complete the preoperative test procedure. Refer to "Appendix - Preoperative Tests" section of Part 1 of the Operation Manual.
Aestiva Breathing circuit maintenance Disassemble the patient circuit module to replace check valves or seals. Step 1 Remove the patient circuit module (Cleaning and Sterilization section). AA.96p.017 Step 2 AA.96p.041 Hold in the tab. Step 3 Remove the rear cover. Note: The rear seal is keyed to fit a specific module. 4-10 AA.96p.
4 User Maintenance Step 4 AA.96p.043 Push in the tabs and remove the top cover. 4-11 Step 5 AA.96p.045 AA.96p.044 Remove the seals. Turn and pull to remove the check valves. Do the steps in the opposite order to assemble the module. Before you use the system, complete the preoperative test procedure. Refer to "Appendix - Preoperative Tests" section of Part 1 of the Operation Manual.
Aestiva Bellows maintenance Step 1 Remove the bellows from the breathing system. AA.96p.023 4-12 Step 2 AA.96p.051 Turn the housing counter-clockwise and lift. Step 3 AA.96p.052 Remove the bottom edge of the bellows from the rim.
4 User Maintenance Step 4 AA.96p.031 Remove the disk from the bellows. 4-13 Step 5 AA.96p.032 Remove the ring from inside the top of the bellows. Step 6 AA.96p.033 Push the latch toward the center and remove the rim. Step 7 AA.96p.034 Remove the pressure relief assembly. w WARNING Do not disassemble the pressure relief valve. This can damage the seat or diaphragm and cause injury to the patient.
Aestiva Step 8 AA.96p.035 Push the latch towards the center and remove the locking tabs. 4-14 Step 9 AA.96p.036 Remove the seal. Do these steps in the opposite order to assemble the bellows. If you see a dust-like powder on the housing or the bellows, apply a thin layer of KRYTOX lubricant to the ribs of the bellows housing. Make sure the lubricant is applied smoothly and there are no lumps. Make sure that: • The arrow on the seal points up. • You hear a double click when you install the rim.
4 User Maintenance Bellows tests w WARNING Objects in the breathing system can stop gas flow to the patient. This can cause injury or death: • Do not use a test plug that is small enough to fall into the breathing system. • Make sure that there are no test plugs or other objects caught in the breathing system. w WARNING The bellows assembly test does not replace the preoperative tests. Always complete the tests in the section Preoperative Tests before you use the system with a patient.
Aestiva Step 2 Invert the bellows. They must not fall more than 100 mL/min. If it does: Step 3 Remove the plugs from the ports. Permit the bellows to fully extend. Step 4 Close port C. C AA.96p.124 4-16 • The ports are not tightly sealed. • The bellows is incorrectly installed. • The seal inside the bellows is not correctly installed (with its groove pointed up). • Parts are damaged.
4 User Maintenance Step 5 The bellows must not fall more than 100 mL/min. If it does: • The port is not tightly sealed. • The bellows or the pressure relief valve is not correctly installed. • Parts are damaged. 4-17 If the result for all the bellows tests was “passed,” install it in the system. Before you use the system, complete the preoperative test procedure. Refer to "Appendix - Preoperative Tests" section of Part 1 of the Operation Manual.
Aestiva O2 sensor calibration - 21% O2 Note: The 21% O2 calibration must be done before the 100% O2 calibration. During O2 calibration the screen replaces O2 data with - - -. Mechanical ventilation must be off to perform calibration. This procedure takes three minutes or less. Step 1 4-18 AB.29.013 Push the menu key. Step 2 AB29.002 AB.90.036 Turn the knob to select Setup/Calibration (highlight). Step 3 AB.90.091 AB.90.037 Push the knob to show the next screen.
4 User Maintenance Step 4 AB.29.012 AB.90.048 AB29.002 Turn, then push the knob to select O2 Sensor Cal. 4-19 Step 5 AB.90.049 Select 21%. Then, push the knob. Step 6 Complete the steps shown on the screen. • Remove the O2 sensor from the circuit. • Do not twist or stress the cable. • Make sure the cable is connected. Step 7 AB.48.080 Select Start Cal. Then, push the knob. The screen shows “Calibrating. . .”, followed by the result (“Complete” or “Failure”).
Aestiva If the calibration fails: • perform the calibration again. • do a 100% O2 sensor calibration. If this passes, repeat the 21% O2 calibration. If the calibration passes, install the O2 sensor. If necessary, do the 100% O2 calibration. Before you use the system, complete the preoperative test procedure. Refer to "Appendix - Preoperative Tests" section of Part 1 of the Operation Manual.
4 User Maintenance O2 sensor calibration - 100% O2 Note: If w appears on the screen, the 21% O2 calibration must be completed before the 100% O2 calibration. Mechanical ventilation must be off to perform calibration. This procedure takes three minutes or less. Step 1 Push the menu key. AB.29.003 4-21 Step 2 AB29.002 AB90.036 Turn the knob to select Setup/Calibration (highlight). Step 3 AB90.037 Push the knob to show the next screen.
Aestiva 4-22 AB.29.046 AB90.048 Turn, then push the knob to select O2 Sensor Cal. AB29.002 Step 4 Step 5 AB.90.050 Select 100%. Then, push the knob. Step 6 AB.90.088 With the O2 sensor in the circuit, fill the circuit with 100% O2: • Push the flush button. • Then flow 100% O2 at 5 L/min. (circuit should be open). Step 7 AB48.081 Select Start Cal. Then, push the knob.
4 User Maintenance The screen shows “Calibrating . . . ”, followed by the result (“Complete” or “Failure”). If the calibration fails, • perform the calibration again. • decrease the airway pressure, and repeat the calibration. Before you use the system, complete the preoperative test procedure. Refer to "Appendix - Preoperative Tests" section of Part 1 of the Operation Manual.
Aestiva Flow sensor calibration Minimum Frequency: Weekly The system automatically corrects for zero offset when you unplug the flow sensor connectors with power on. You must stop mechanical ventilation before you calibrate the flow sensors. Step 1 4-24 AA.96p.010 Push up on the latch under the flow sensor module. Remove the flow sensor module. You will feel some resistance. Continue to pull. Step 2 When calibration is complete, the screen shows, "No Insp flow sensor" and "No Exp flow sensor".
4 User Maintenance How to prevent water build-up w WARNING 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. Why is water buildup a problem? Pooled water in the sensor or water in the sensing lines causes false alarms. How much water is too much? A thin layer of water or a foggy look in the flow sensors is OK.
Aestiva 4-26 4-26 1006-0939-000
5 Alarms and Troubleshooting 5-1 w CAUTION In this section No repair should ever be attempted by anyone not having experience in the repair of devices of this nature. About alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2 Alphabetical list . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4 Breathing system problems (no alarm) . . . . . . . . . . . . . . . . . . . . . . . . . . .
Aestiva About alarms w WARNING If an alarm occurs, safeguard the patient first, before troubleshooting or repair procedures. Two areas on the screen show alarms. The area at the top of the display shows most alarms. If there are more than 4 alarms at the same time, the lower priority alarms cycle every two seconds. During severe malfunctions that prevent mechanical ventilation and/or monitoring, the area under the waveform shows minimum system messages.
5 Alarms and Troubleshooting Alarm messages have three general causes. • Malfunctions: Some malfunctions cause reduced function (for example, no PEEP). Others prevent mechanical ventilation (Minimum shutdown). • Patient monitoring: These are high and low limit settings that you adjust. • Informational: Control settings or system conditions can change operation. For example, if the audible circuit leak alarm is Off, the screen shows “Circuit Leak Audio Off” as a low priority alarm.
Aestiva Alphabetical list The instructions in this section tell you what you can do: • During a case to protect the patient • After the case to repair a problem This table does not include operator instructions. There are two special types of alarms: • Minimum monitoring alarms stop mechanical ventilation. • Minimum shutdown alarms stop mechanical ventilation and monitoring. 5-4 Message Priority +15V Analog Outof-Range Action/Concerns Repair Min. shutdown Ventilator malfunction.
5 Alarms and Troubleshooting Message Priority Cause Action/Concerns Apnea Alarm Standby Low Normal condition after End Case, power-up, or ACGO change from On to Off Monitoring resumes after first - - breath (mechanical) or 2 breaths within 30 seconds (non-mechanical). Apnea Alarm Off Low The cardiac bypass option Apnea alarms are normally --is selected (alarm limit turned off when this option is menu). selected.
Aestiva Message Priority Cause Action/Concerns Repair Cal Flow Sensors Low The last flow sensor calibration failed. Calibrate the flow sensors. Look for water in the flow sensor tubes. Dry if necessary. Contact a qualified service representative. Calibrate O2 Sensor Low O2%>110% Does the sensor measure 21% O2 in room air? Calibrate O2 sensor. Canister open Medium The canister release is open (large leak) without a bypass mechanism. Close the canister release.
5 Alarms and Troubleshooting Message Priority Cause Action/Concerns Repair Control Settings Input has Failed Minimum monitoring (Medium) Ventilator malfunction. Ventilate manually. Monitoring is still available. Contact a qualified service representative. CPU Failure Minimum shutdown (High) Ventilator malfunction. Ventilate manually. Monitoring is not reliable. Contact a qualified service representative. CPU Internal Error Minimum shutdown (High) Ventilator malfunction.
Aestiva 5-8 Message Priority Cause Action/Concerns Heliox Mode is On Low Control setting on ventilation setup menu. When Heliox is used, the --ventilator must adjust volume calculations. High O2 Medium O2% > alarm high limit setting. Is the limit set correctly? What Calibrate O2 sensor. is the O2 flow? Replace O2 sensor. Did you just push Flush? Does the sensor see 21% O2in room air? High Paw High Paw is greater than Plimit.
5 Alarms and Troubleshooting Message Priority Cause Action/Concerns Repair Internal Ventilator Clock Too Fast Minimum shutdown (High) Ventilator malfunction. Ventilate manually. Monitoring is not reliable. Contact a qualified service representative. Internal Ventilator Clock Too Slow Minimum shutdown (High) Ventilator malfunction. Ventilate manually. Monitoring is not reliable. Contact a qualified service representative.
Aestiva Message Priority Cause Low Paw Medium Paw does not rise at least Are circuit connections OK? Look for circuit Look at the Paw gauge on the disconnection. 4 cm from the lowest absorber. pressure measured during the last 20 seconds. Low Ve Medium Exhaled minute volume
5 Alarms and Troubleshooting Message Priority Cause Action/Concerns Repair Monitoring Only Medium A severe malfunction prevents mechanical ventilation. Other alarms may also occur. Ventilate manually. Cycle system power (On- StandbyOn). If the alarm clears, restart mechanical ventilation. Contact a qualified service representative. No Circuit Module Low The patient circuit module Install a module. Refer to the Optical sensors look is not installed. Setup section.
Aestiva Message Priority Cause Action/Concerns O2 Sensor out of circ Low O2 sensor not installed in Install a breathing circuit breathing circuit module; module and an O2 sensor. sensor not measuring gas in breathing circuit. Repair --- On Battery - Power Medium The mains supply is not OK? (low after connected or has failed acknowledged) and the system is using battery power. Ventilate manually to save power. At full charge, the battery permits approx. 30 minutes of mechanical ventilation.
5 Alarms and Troubleshooting Message Priority Cause Action/Concerns Repair Pres/Vol Mon Inactive Medium Outlet selection switch is Connect the patient circuit to - - set to auxiliary gas outlet. the auxiliary gas outlet or set the switch to the common gas outlet for normal operation. Pressure Limit Switch Failure Minimum monitoring (Medium) A pressure safety switch activated at a Paw <90 cmH2O and Pmanifold <80 cm H2O. Contact a qualified Ventilate manually.
Aestiva 5-14 Message Priority Cause Action/Concerns Sustained Paw High Paw > sustained pressure Check tubing for kinks, blockages, disconnects. limit for 15 seconds3. Calibrate the flow sensors. System Leak? Medium Delivered volumes do not If you are using Heliox, select match set volumes. Heliox on the ventilator setup menu. Look for leaks in the manifold. Compare set to delivered volumes. Calibrate the flow sensors. Drain water buildup from the breathing system.
5 Alarms and Troubleshooting Breathing system problems (no alarm) 1006-0939-000 Symptom Problem Solution(s) Gas scavenging flow is too low. Suction supply problem. Use a different suction supply. Filter blockage. Active systems have a flow indicator to show this. Replace the filter. Refer to “Disassemble the scavenging path” in Section2, Cleaning and Sterilization. The bellows fills when the Bag/ Vent switch is set to Bag or the bag fills when the switch is set to Vent.
Aestiva Electrical problems (power failure, etc.) wWARNING If a circuit breaker opens frequently, do not use the system. Have an approved service representative repair the system Symptom Problem Solution Mains indicator is not on. The electrical power cable is not connected. Connect the power cable. The inlet circuit breaker (toggle switch) is open. Close the circuit breaker (Figure 5-1). The power cable is damaged. Replace the power cable.
5 Alarms and Troubleshooting Out (No Power) Open (No Power) Closed (OK) AA.96.108 AA.96.109 In (OK) AB.29.007 5-17 1 2 3 AA.96.117 5 4 1. 2. 3. 4. 5. * Outlet CIrcuit Breakers* Master Circuit Breaker (all outlets)* Inlet Circuit Breaker* Ventilator Fuse Mains Indicator Labels show ratings.
Aestiva Pneumatic problems Symptom Problem Solution High-pressure leak Controls are not set correctly. Set the system switch to Standby and the auxiliary flowmeter to Off. Equipment connected to pneumatic outlet. Disconnect the equipment. Incorrect cylinder connection (cylinder yokes). Make sure that there is only one cylinder gasket, the gasket is in good condition, and the T handle is tight. Incorrect cylinder connection (DIN connection.) Make sure the nut is tight.
6 Illustrated Parts 6-1 In this section Breathing System Parts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2 Main manifold . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-5 Exhalation valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-7 Bellows . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Aestiva Breathing system parts Top level Item Description (Figure 6-1) Stock Number 1 Flow sensor module (cover & holder) 1406-8208-000 2 1406-3401-000 b.
6 Illustrated Parts 1006-0939-000 Item Description (Figure 6-1) 13 Upper dish (2 options) Stock Number ------ Upper dish absorber plastic (seal not included) 1406-3413-000 CO2 bypass assembly metal (seal not included) 1406-3500-000 14 Upper seal 1406-3414-000 15 Tube corrugated 210 mm 1400-3009-000 16 Elbow transfer tube 1406-3576-000 17 Transfer tube 1406-3575-000 18 Drain dish assembly 1406-8218-000 19 Plug, sight glass-drain 0229-2080-100 O-ring, plug 0210-0594-300 20 Cani
Aestiva 6 7 AB.23.
6 Illustrated Parts Main manifold AB.23.096 11 2c 2b 2a 10 9 3 6-5 8 7 6 4 5 2 2 2 AB.23.
Aestiva 6-6 6-6 Item Description (Figure 6-2) Stock Number 1 Seal, main manifold, APL/AGSS 1406-3316-000 2 Seal, bag/vent assy (a, b, c) a. O-ring (Qty 2) 1406-3278-000 b. Poppet (Qty 2) 1406-3279-000 c.
6 Illustrated Parts Exhalation valve 6 AB.23.
Aestiva 12 11 10 9 8 3 1 2 4 AB.23.
6 Illustrated Parts Bellows 1 2 6-9 3 4 6 AB.23.
Aestiva Test tools and system parts 6-10 Description Stock Number Vaporizer port o-rings, external (Qty 6) 1102-3016-000 Cylinder gasket 0210-5022-300 Handle for yoke tee 0219-3372-600 Yoke plug 0206-3040-542 DIN O2 plug (cylinder connection) 1202-7146-000 Positive low-pressure leak test device (BSI) 1001-8975-000 Positive low-pressure leak test device (ISO) 1001-8976-000 Negative low-pressure leak test device 0309-1318-800 Test lung 0219-7210-300 Krytox 1001-3854-000 Touch-up paint
7 Theory of Operation and Specifications In this section 7-1 Ventilator theory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2 Pneumatic circuits. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-9 Suction regulator (optional) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-12 O2 flowmeter (optional). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Aestiva Ventilator theory General The ventilator pneumatics are at the rear of the breathing system. A precision valve controls gas flow to the patient. During inspiration, this gas flow closes the exhalation valve and pushes the bellows down. During expiration, a small flow pressurizes the exhalation diaphragm to supply PEEP pressure. Volume and pressure measurements come from flow sensors in the flow sensor module.
7 Theory of Operation and Specifications Modes The system has four modes of mechanical ventilation: • Volume control mode • Pressure control mode • Synchronized intermittent volume (SIMV) mode (optional) • Pressure support ventilation (PSVPro) mode (optional) AB.90.041 Use the main menu to set the mode. Figure 7-1 • Ventilation Setup Menu Volume control mode AB.29.068 7-3 Figure 7-2 • Volume control diagram Volume Control supplies a set tidal volume.
Aestiva AB.29.069 Pressure control mode Figure 7-3 • Pressure control diagram Pressure control supplies a constant set pressure during inspiration. The ventilator calculates the inspiratory time from the frequency and I:E ratio settings. A high initial flow pressurizes the circuit to the set inspiratory pressure. The flow then decreases to maintain the set pressure (Pinspired). Pressure sensors in the ventilator measure patient airway pressure.
7 Theory of Operation and Specifications At the specified time interval, the ventilator will wait for the next inspiratory effort from the patient. The sensitivity of this effort is adjusted using the flow trigger level. When the ventilator senses the beginning of inspiration it synchronously delivers a volume breath using the set tidal volume, and inspiratory time that is set on the ventilator.
Aestiva An apnea backup mode is provided in the event the patient stops breathing. When setting the backup mode the user adjusts the inspiratory pressure (Pinsp), respiratory rate and the inspiratory time (Tinsp). As long as the patient triggers the ventilator within the set apnea delay time, the patient will get pressure-supported breaths and the ventilator will not deliver machine breaths. The apnea delay time can be set from 10 to 30 seconds with the default set at 30 seconds.
7 Theory of Operation and Specifications Breathing system schematic AB.23.
Aestiva Electrical block diagram 100-120 Vac 220-240 Vac 50/60 Hz AC Inlet Module - Fuses - Voltage Selector Tec 6 Outlet Toroid Two Stage Filter Task Light Battery AB.90.
7 Theory of Operation and Specifications Pneumatic circuits Gas supplies (items 1-6) Refer to Figure 7-8 for location of items. Gas goes into the system through a pipeline or cylinder connection. All connections have indexed fittings, filters, and check (one way) valves. Gauges show the cylinder and pipeline pressures. A regulator decreases the cylinder pressures to the appropriate system pressure. A pressure relief valve helps protect the system from high pressures.
Aestiva Mixed gas (item 26) The mixed gas goes from the flowmeter outlet through the vaporizer that is ON, to the fresh gas outlet, and into the breathing system. A pressure relief valve sets the maximum outlet pressure. Key to Numbered Components 1. Pipeline pressure gauge 2. Pipeline connection 3. Cylinder pressure gauge 4. Cylinder connection 5. Cylinder pressure regulator 6. Pressure relief (opens at approx. 918 kPa) 7. Supply connections for the ventilator 8. System switch 9.
7 Theory of Operation and Specifications AA.96.
Aestiva Suction regulators (optional) Venturi Suction Regulator Supply: Air or O2 from system gas supply Drive gas consumption: 75 L/min Maximum Vacuum: 457 mm Hg with pipeline drive gas at 345 kPa Minimum flow: 20 L/min Sound level 53 dBA Accuracy: 5% of full scale Continuous Suction Regulator Supply: External vacuum Vacuum levels: 0-200 mm Hg and full line vacuum Maximum flow: >20 L/min Accuracy: 5% of full scale O2 flowmeter (optional) Supply: O2 from system gas supply 7-12 flow rates: 0-10 L/min
7 Theory of Operation and Specifications Breathing system There are two types of breathing circuit modules (Figure 7-8): 1. Circle 2. Mapleson D or Bain (With Mapleson D/Bain circuits one flow sensor measures Inspiratory and expiratory flows. The other measures fresh gas.) Tabs on the circuit modules fit into infrared switches on the breathing system bulkhead. The ventilator uses these switches to identify the circuit module.
Aestiva 2 3 4 5 3 6 AB.23.210 1 17 Circle Module Mapleson D / Bain 7 15 14 13 12 7-14 8 9 10 AB.23.056 16 11 1. O2 sensor (ventilator) Or plug 2. Inspiratory port 3. Tabs (identify the breathing circuit module to ventilator) 4. Expiratory port 5. To-Fro port 6. Fresh gas port 7. Flow sensor module connector (used with ventilator) 8. Optical switches (use tabs to identify circuit module) 9. Internal connection (exhaled gas flows to absorber during expiration) 10.
7 Theory of Operation and Specifications Breathing system specifications Volume 5500 mL Absorbent 1.35 kg (400 mL) / canister Connections Breathing circuit modules: Circle or Bain modules Common gas outlet: ISO 5356 type connector (Standard 22 mm OD or 15 mm ID conical friction fit connectors). Remove the breathing circuit module to access. Auxiliary outlet: ISO 5356 type connector on the front of the breathing system (Standard 22 mm OD or 15 mm ID conical friction fit connectors) (Optional).
Aestiva Pressure required to open inspiratory and expiratory valves Dry: Moist: 0.49 cmH2O 0.91 cmH2O Breathing system leakage (average during use) Pressure Bag Mode (ml/min) Vent Mode (ml/min) 30 cmH2O 0.089 0.063 60 cmH2O N/A 0.106 90 cmH2O N/A 0.163 APL Valve Approximately 0 to 70 cmH2O Pressure Flow Data (APL Valve Completely Open) 7-16 Flow (L/min) Flow (L/sec) APL Pressure cmH2O 3 0.05 1.12 10 0.17 1.26 20 0.34 1.77 30 0.51 2.36 40 0.68 3.14 50 0.83 4.06 60 1.
7 Theory of Operation and Specifications Pneumatic specifications Gas supplies Pipeline gases: O2, Air, N2O Cylinder gases: CO2, Heliox, O2, N2O, Air (maximum: 2 cylinders of each gas; 4 cylinders total on narrow models; 5 cylinders total on the wide model. Cylinder connections: Pin indexed (all gases); nut and gland DIN 477 (O 2, N2O, Air); large cylinder kit available for O2 and N2O. Primary regulator output pressure: • With a rear panel label: The primary regulator is set to pressure less than 345 kPa.
Aestiva Flow specifications Flow rates Minimum O2 flow: 25 to 75 mL/min Gas Flow Range Scale (One Flow Tube) Scale (Two Flow Tubes) O2 0.05-15 L/min ------------------ 0.05 -0.95 L/min 1-15 L/min N2O 0-10 L/min1 ------------------ 0.05 -0.95 L/min 1-10 L/min Air 0-15 L/min 1-15 L/min 0.05 -0.95 L/min 1-15 L/min He 0-15 L/min 0.5-15 L/min ------------------ CO2 0-0.5 L/min 0.05-0.5 L/min ------------------ 1.
7 Theory of Operation and Specifications Electrical power Supply voltage 100-120 or 220-240 Vac ± 10% at 50 or 60 Hz Electrical circuit breakers Inlet circuit breakers: 100-120 Vac 220-240 Vac No outlets 5A 3A With outlets 10A 6A Master circuit breaker-all outlets: 100-120 Vac 220-240 Vac 5A 3A 100-120 Vac 220-240 Vac (3) 2A (1) 3A (3) 1A (1) 2A Outlet circuit breakers: 7-19 No outlets Circuit Breaker for Tec 6 Outlet (limited by master circuit breaker) System leakage current limit - do n
Aestiva Power cord Electrical Fuses Battery Information Length 5 meters Voltage rating 125 to 264Vac at 10A, by country and/or translation Current Carrying Capacity 10A Type Three conductor medical grade power supply cord by country and/or translation T6.3L/250V A sealed lead acid battery supplies battery backup for the Aestiva. The Aestiva is not a portable unit. Batteries are used as back up power in case of a power failure. Thus the battery is in a float charge state most of the time.
7 Theory of Operation and Specifications Physical specifications All specifications are approximate values and can change without notice. Weight 2 vaporizer system: 136 kg 3 vaporizer system: 154 kg Dimensions 2 vaporizer system Height: 135.8 cm Width: 75.0 cm Depth: 83.0 cm Shelves: Number: 0, 1, or 2 Size: 47.5 x 35 cm or 67.5 x 35 cm Usable height (2 shelves)1: 26 or 36 cm Weight limit: 23 kg per shelf 3 vaporizer system 7-21 Height: 135.8 cm Width: 93.0 cm Depth: 83.
Aestiva Environmental requirements Temperature Operation 10 to 40 °C, (Oxygen cell operates to specifications at 10 to 40 °C) Storage -20 to 70 °C Oxygen cell storage is -5 to 50°C, 10 to 95% Rh, 500 to 800 mmHg Humidity Operation 15 to 95% Rh, non-condensing Storage 10 to 100% Rh, include condensing Altitude 7-22 7-22 Operation 500 to 800 mmHg (3565 to -440 meters) Storage 375 to 800 mmHg (5860 to -440 meters) Compensation range 525 to 795 mmHg (3,000 to -100 meters) 1006-0939-000
7 Theory of Operation and Specifications Ventilation operating specifications Pneumatics Gas Source Anesthesia System Gas Composition Medical Air or O2 Nominal Supply Pressure 350 kPa Pressure Range at Inlet 240 to 700 kPa Peak Gas Flow 120 L/m at 240 kPa, 0.75 seconds Continuous Gas Flow 80 L/m at 240 kPa Flow valve range 1 to 120 L/min at 240kPa.
Aestiva Oxygen Display range 8 to 100% O2 Display resolution 1% increments Sensor type Galvanic fuel cell Measurement range 0 to 100% O2 Measurement accuracy Better than ± 3% of full scale Cell response time 35 seconds1 Low O2 alarm range 18% to 99% High O2 alarm setting 21% to 99% or Off Note: Low O2 limit may not be set above the high O2 limit, nor may the high O2 limit be set below the low O2 limit.
7 Theory of Operation and Specifications Aestiva ventilator accuracy data The following accuracy data are based on patient conditions and settings described in ASTM F1101. The ventilator is assumed to be operating in volume mode (Heliox Off). For the following to be true, the ventilator is operating with 100 percent oxygen in the breathing system; or, it is connected to an anesthesia gas analyzer.
Aestiva Figure 7-9 • Gas Composition Related Errors (both modes) Heliox mode The effect on volume delivery and monitoring accuracies of Heliox mixtures is within +8% to -15% when operating the Aestiva Ventilator in the Heliox mode. Open loop mode volume delivery accuracy: ±10% of the set value under the following conditions: 7-26 1. Accuracy evaluated at the ventilator outlet. 2. This is not a normal operating mode. The ventilator is operating in an irregular condition.
7 Theory of Operation and Specifications 7-27 1006-0939-000 7-27
Aestiva 7-28 7-28 1006-0939-000
Index Symbols +15V Analog Out-of- Range 5-4 Numerics 12 Hour Test 5-4 -15V Analog Out-of-Range 5-4 A Absorbent replace 3-6 Absorber disassembly 2-11 Absorber canister open 5-4 Absorber disassembly 2-11 Absorber parts stock numbers 6-3 Absorber top panel open 5-4 Alarms 5-4 alphabetical list 5-4 display area 5-2 priority 5-2 All 5-5 All Vent modes Available 5-5 Altitude 3-18 APL valve disassembly/maintenance 4-3 Apnea Alarm in Standby 5-5 Apnea Alarm Off 5-5 Attach and secure equipment 3-15 Aux Comm Gas O
Aestiva CPU Internal Error 5-7 Cylinder installation 3-11 Cylinder yoke 3-12 D Default settings 3-18 Dimensions 7-21 DIN cylinder 3-13 Disassembly 2-8, 2-13 patient path 2-8 scavenging path 2-13 Disassembly 2-13 Disassembly for 2-8 Disinfection 2-14 Display language 3-18 Display Voltage Out Of Range 5-7 Drain dish install 3-7 E Electrical block diagram 7-8 Electrical connections 3-8 Electrical outlets 3-8 Electrical specifications 7-19 Electro-magnetic compatibility 7-20 Environmental requirements 7-22 E
Index I Identify type 3-3 Insp Flow Sensor Fail 5-8 Insp Reverse Flow 5-9 Inspiration Stopped 5-8 Install 3-2 Internal Ventilator Clock Too Fast 5-9 Internal Ventilator Clock Too Slow 5-9 Invalid Circuit Module 5-9 L Leakage current 3-8 Leakage current specification 7-19 Limit Task Light Use 5-9 Loss of Backup Audio 5-9 Low Battery Voltage 5-9 Low Drive Gas Pressure 5-9 Low O2 5-10 Low Paw 5-10 Low Ve 5-10 Low Vte 5-10 Low-pressure leak test tool stock numbers 6-10 M Main manifold 3-2 disassembly/mainten
Aestiva Pres Control Not Avail.
Index W Water build-up and alarms 4-25 causes for 4-25 solutions 4-25 Weight 7-21 Y yoke type 3-11 1006-0939-000 I-5
Aestiva I-6 1006-0939-000
Warranty This Product is sold by Datex-Ohmeda under the warranties set forth in the following paragraphs. Such warranties are extended only with respect to the purchase of this Product directly from Datex-Ohmeda or Datex-Ohmeda’s Authorized Dealers as new merchandise and are extended to the Buyer thereof, other than for the purpose of resale.
Aestiva/5 Operation Manual, English 1006 0939 000 06 05 Printed in USA ©Datex-Ohmeda, Inc.
