Masina Anestezie - Service Manual
Masina Anestezie - Service Manual
ANESTHESIA
MACHINE
SERVICE
MANUAL
Foreword
Welcome to the Servicer Manual for the ATESE X5 PLUS Anaesthesia Machine.
This manual is for engineers who have successfully completed a service training course for X
serial ventilators.
if you have not completed such a course, you are not authorized to undertake the maintenance,
Personnel operating the ventilator must become thoroughly familiar with the instructions
contained in this manual prior to using the ventilator with patients.
The ATESE X5 PLUS Anaesthesia Machine. is intended for use by a qualified practitioner under
the direction of a qualified anaesthetist. When the ventilator is connected to a patient, it is
recommended that a licensed medical practitioner be in attendance at all times to react to an
alarm or other indication of a problem.
WARNING:
Incorrect use of the equipment described herein may result in injury to the patient. Read
this manual before operating the machine. You must be familiar with the machine and its
functions before using it on a patient.
To ensure correct functioning of the equipment it must be serviced at regular intervals. The X5
PLUS must be serviced or repaired only by qualified service personnel using genuine spare parts.
We will not otherwise assume responsibility for the materials used, the work performed or any
possible consequences of the same.
In communication with us, quote the model and serial number of the equipment, with the
approximate date of purchase. If the unit is being returned for repair, indicate the nature of the
fault or the work you require to be carried out.
1 Introduction ATESE X5 PLUS Ventilator
1.1 Notices
We have a policy of continued product improvement and therefore reserve the right to make
changes which may affect the information contained in this manual, without giving prior
notice.
The manufacturer accepts responsibility for the effects on safety, reliability and
performance of the equipment only if:
Assembly operations, extensions, adjustments, modifications and repairs are carried out by
persons with written authorisation from the manufacturer;
The electrical installation complies with the "Regulations for the Electrical Equipment of
Buildings".
1.1.3 Disclaimer
Opening of the control unit by unauthorised personnel automatically voids all warranties and
specifications. The prevention of tampering is solely the user's responsibility; the manufacturer
assumes no liability for any malfunction or failure of the ventilator if the control unit is opened.
1.1.4 Copyright
All rights reserved. The information contained in this publication may not be used for any
purpose other than that for which it was originally supplied. This publication may not be
reproduced in part or in whole without the written consent of manufacturer.
1.2 Equipment Symbols
Data communication
Warning notices
connector
waste. By ensuring that this product is disposed of correctly, you will help
recycling this product, please consult the distributor from whom you
purchased it.
2 Description of the ventilator
2.1 Overview
The X5 PLUS ventilator is an advanced, microprocessor-controlled,pneumatically driven ventilator
which has been designed specifically for the mechanical ventilation of adult,paediatric and
neonatal patients under general anaesthesia.
The X5 PLUS is designed for use with a circle-type absorber and bellows,also is ideally suited to
both low-flow and high-flow applications. The ventilator may also be used with either a Bain-type
coaxial circuit or a Jackson-Rees/Ayres T-piece type paediatric circuit with no modification being
necessary.
The ventilator sets the desired ventilatory parameters and generates alarm, warning and status
messages and also calculates and implements the functions necessary to drive the bellows
pneumatically.
There are variations based on the drive gas used (air or oxygen) and the drive gas connector
type(depending on the eventual country of use).
FEATURE DESCRIPTION
controlled electronically.
Waveforms and Loops Selectable five waveforms and three loops
display,two waveforms and two loops can be
displayed at the same time.
The Display of the front panel (described in section 2.3.1) provides waveforms, monitoring
data and menu tabs. The keys and control knob enable the user to enter the standby, silence
alarms, access normal screen quickly.
To set alarm silence state, push this key to enter 120 s alarm silenced status.
This key also works as an alarm system reset, clearing the visual alarm indicators
whose generating causes have already ceased.
5. Standby key
6. Battery LED
7. AC power LED
Off: when the anesthesia ventilator is not connected to the AC power source.
8. Control knob
Push the control knob to select a menu option or confirm your setting. Turn the control
knob clockwise or counterclockwise to scroll through the menu options or change your
settings.
2.3.1 Display
FIGURE 2-2 and the descriptions that follow provide an overview of the Display.
The icon is displayed when more than one alarm have occurred.
the icon and 120s countdown time is displayed when the alarm silence key is
pressed.
Displays power source and battery icon.The AC icon is selected when the anesthesia
ventilator is powered by AC power source. The battery icon is selected when the
7. Stopwatch area
Used to set the parameters related to the selected mechanical ventilation mode. The
arrangement of the shortcut keys in this area varies depending on the selected
mechanical ventilation mode. For details, refer to 4 Operations and Ventilation Setup.
11. Graph monitoring area
Displays the waveforms or spirometry loops. Different types of waveforms are displayed
based on the actual screen layout settings.
2.4 Rear Panel
3. O2 sensor connector
5. The fan
6. Driving gas(oxygen or air) inlet
9. Equipotential terminal
Attention:
To ensure proper ventilation of the device, do not block the fan cover.
Improper connection of equipment or any power sources to the calibration port may
permanently damage the ventilator. Only a qualified technician should connect monitoring
equipment to this port.
2.5 Penumatic Connections
Driving gas is let to the pressure regulator (3) reducing the pressure to 2.5 bar for the Inspiratory
flow control valve (4).
This valve is controlled by the ventilator electronics, selecting a correct inspiratory flow according
to the ventilator settings. A differential pressure transducer(8) connected to the pressure sample
ports P1 and P2 on the rear cover of ventilator and measures inspiratory flow and expiratory
flow by flow sensor(6) during ventilation.
A pressure transducer(7) connected to the pressure sample port P2 measures the airway
pressure .
During inspiration the Expiratory valve (10),and the PEEP valve (9) are closed, and the driving gas
is let to the bellows. The exhalation valve (10) is closed during inspiration, and open during
expiration when the bellows is in top and the pressure in the bellows is approx. 3 hPa higher than
pressure from the ventilator.Excess gases are evacuated through the AGSS connector.
2.6 Electrical Connections
W6 DC24V cable CN2 in the power supply J1 in the Power switch board
W7 DC and Signal cable J15 in the BDU board J3 in the Power switch board
W9 BDU to GUI cable J17 in the BDU board J4 in the GUI board
W15 HPM cable J1 in the HPM board J16 in the Analog driver
board
The BDU board , in conjunction with the analog driver board, provides microprocessor
control of all breath delivery functions for the Ventilator. It also communicates
with the GUI board for display and control information from the operator. All analog
signals to and from the sensors and actuators of the system are controlled by software
The Analog driver board provides an interface between the ventilator’s microprocessor circuits
and its analog systems. These analog systems include valves and transducers.
Power switch board serves as the power management for the ventilator,provides power
conversion from power supply board and recharge management for the battery.
2.7.3.1 Connectors
Not fully:+5V±0.5V
2.7.4 GUI Board
GUI board provides microprocessor control and monitoring of the display and user interface
system. The GUI board includes these circuits, which perform the indicated functions:
The CPU and control circuit includes a STM32F429 microprocessor, operating at 180 MHz,
along with supporting devices to perform ventilator control functions. In addition to
executing instructions, these functions include passing data back and forth between
memory and I/O devices; generating address signals used to access memory locations;
generating read/write, timing, and other control signals; and processing interrupts from the
various system devices.
The real-time clock tracks the ventilator’s operational time and short-duration power losses
(up to 60 minutes). When the ventilator is operating, the real-time clock is powered by VCC.
When power is lost or removed, a built-in battery powers the clock.
Three RS-232 C channels provide output for digital communications interface and external
communications for service mode. They are electrically isolated for safety.
The VGA video control circuit, comprising a VGA LCD controller IC.
The LED PCB interface lets the microprocessor control the discrete LEDs on the key board.
The sound generator interface produces the ventilator’s alarm sounds. Consisting of a
microcontroller and audio signal processing hardware, the interface produces standard
alarm sounds.
The rotary encoder/decoder circuit determines the direction and amount of knob
movement.
The keyboard interface reads the keyswitches and controls the lighting of the LEDs on the
keyboard.
FIGURE 2-9 GUI Board
2.7.4.1 Connectors
WARNING:
Only personnel trained and authorized by Hventi shall be permitted to perform installation,
service or maintenance of this ventilator.
Always switch the ventilator off and disconnect the ventilator from the mains power and as
well as remove the battery, before opening the cover.
Discard disposable, replaced and left-over parts in accordance with appropriate industrial and
environmental standards.
1. Unscrew the two screws and remove the cover of battery box
4. Pull the top cover back and remove the top cover
Figure 3-6 Removing The Top Cover,Step 4
3.3 Removing The Power supply
As shown,find the position and unsrew the two screws,then take the power supply away.
2. Disconnect the cables with power switch board,then remove the power switch board
4. Disconnect the cable with GUI board,then remove the front panel
Figure 3-15 Removing The Front Panel,Step 3
2. Disconnect the cables with GUI board,then take the LCD frame away
4.1 Introduction
This section provides detailed information required to properly test and calibrate the ATESE X5
PLUS anesthesia ventilator. Calibration consists of making mechanical and electrical
adjustments with
the proper test equipment. The instrument should be tested and calibrated after repairs have
NOTE: Both calibration and a functional test must be performed to verify complete and
proper operation.
Ensure that all testing materials, including drive gas, breathing circuits, tools and
documents are available and current, calibrated and in good working order prior to beginning.
4.2.1 Warnings
WARNING: For continued protection against fire hazard, replace all fuses with the specified
WARNING: In order to prevent an electric shock, the ventilator (protection class I) may only
contact).
WARNING: Possible explosion hazard. Do not operate ventilator near flammable anesthetic
agents or other flammable substances. Do not use flammable anesthetic agents (i.e., ether or
cyclopropane.)
WARNING: The use of anti-static or electrically conductive respiration tubes, when utilizing
high frequency electric surgery equipment, may cause burns and is therefore not
recommended in any application of this machine.
WARNING: Possible electric shock hazard. The machine may only be disassembled by authorized
service personnel.
4.2.2 Cautions
CAUTION: Use cleaning agent sparingly. Excess fluid could enter the machine, causing
damage.
CAUTION: This machine must only be operated by trained, skilled medical staff.
4.2.3 Notes
NOTE: Only bacterial filters with a low flow resistance must be connected to the patient
NOTE: Ensure that the gas supply of the ventilator always complies with the technical
specification.
NOTE: The APL Valve and PAW gauge marker are for reference only. Calibrated patient
NOTE: If the machine should show faults during the initial calibration or testing, the
machine should not be operated until the fault has been repaired by a qualified service
technician.
NOTE: After servicing, functional, sensor and system tests must be carried out before
clinical use.
4.3 Overview Calibration
NOTE: Perform the corresponding calibration if any test item of the system test about
NOTE: Fluke VT Plus: The zero reading (offset) of the pressure measurements may drift
slightly with time and temperature. A zeroing function is provided for the user to zero the
offset drift. Typically, this is done when a non-zero reading occurs when there is zero applied
pressure. However, it is good practice to zero the respective signal before any measurement is
taken.
NOTE: You can select VT Plus to perform automatic calibration of valves or flow
sensors, or any other calibration devices that fulfills the accuracy requirements to perform
manual calibration.
The anesthesia ventilator provides the function of monitoring volume, pressure, FiO2 and etc.
When these measured values have great deviations, it is very likely that measurement offset
occurs to the relevant measurement parts. In this case, you need to perform calibration again.
After equipment service, such as replacing the analog driverl board, expiratory valve
Assembly,pressure regulator and proporational valve assembly, you need to calibrate the flow
sensors.
The following table lists the possible calibration items and calibration time.
SN Calibration item Functional description Calibration time
Yenimahalle / ANKARA
TÜRKİYE