Philips IntelliVue MP40, IntelliVue MP50 Service manual
IntelliVue MP40/50
Service Guide
IntelliVue Patient Monitor
MP40/50
Patient Monitoring
Part Number M8000-9361E
451261018641
*M8000-9361E*
1Table of Contents
1 Introduction 13
Who Should Use This Guide 13
How to Use This Guide 13
Abbreviations 13
Responsibility of the Manufacturer 14
Passwords 14
Warnings and Cautions 14
2 Theory of Operation 17
Monitor Theory of Operation 17
System Boundaries 17
Hardware Building Blocks 19
IntelliVue MP40 19
IntelliVue MP50 20
Optional Hardware 21
Compatible Devices 22
Power Supply 25
CPU Boards 25
System Interface and I/O Boards 26
Data Flow 27
Data Acquisition 27
Data Provider System Service 27
Persistent Data Storage System Service 28
Display and User Interface Service 28
Data Output 28
Monitor Applications 28
Internal LAN (Measurement Server Link) 28
Philips Clinical Network 29
How does the Support Tool Work with the Monitor 30
Monitor Software Block Diagram 30
Block Diagram Legend 32
3 Testing and Maintenance 37
Concepts 37
Test Reporting 37
Frequency 38
Tests When Performing... 39
Installation 39
Repair 39
3
Preventive Maintenance 39
Performance Verification 40
Upgrades 40
Preventive Maintenance Procedures 40
NBP PerformanceTests 40
NBP Accuracy Test 41
NBP Leakage Test 42
NBP Linearity Test 42
Valve Test 42
Microstream CO2 Performance Test 43
Barometric Pressure Check and Calibration 43
Leakage Check 44
Pump Check 45
Flow Rate Check and Calibration 45
Noise Check 45
CO
Gas Measurement Calibration Check 45
2
Calibration Verification 46
Reset Time Counters 46
CO2Pump / CO2 Scrubber Replacement 47
Te s t s 47
Visual Test 48
Power On Test 48
Temperature Performance Test 48
ECG/Resp Performance Test 48
ECG Performance 48
Respiration Performance 48
Invasive Pressure Performance Test 49
SpO2 Performance Test 49
Measurement Validation 49
M3014A Capnography Extension Performance Tests 49
Mainstream CO2 Accuracy Check 49
Sidestream CO2 Accuracy Check 50
Sidestream CO2 Flow Check 51
Spirometry Performance Tests 51
Equipment Required 51
Flow Test 51
Leakage Test 51
Barometer Check 52
Cardiac Output Performance Test 52
Service Tool Procedure, Version 1 52
Service Tool Procedure, Version 2 52
BIS Performance Test 53
PIC/DSC Test 53
Nurse Call Relay Performance Test 53
Phone Jack Type Connector Test (Traditional Nurse Call) 53
Multi-Port Nurse Call Connector Test (Flexible Nurse Call) 54
4
ECG Sync Performance Test 55
Docking Station Performance Test 55
Vuelink Performance Test 56
IIT Communication Test 56
IntelliVue 802.11 Bedside Adapter Communication Test 58
Safety Testing 58
Warnings, Cautions, and Safety Precautions 58
Safety Test Procedures 59
Battery Handling, Maintenance and Good Practices 62
About the Battery 62
Checking the Battery Status 62
Battery Status on the Main Screen 64
Battery Status Window 66
Viewing Individual Battery Status 66
Documenting Battery Status 67
Battery Implications 67
Conditioning a Battery 67
What is Battery Conditioning? 67
Why is Battery Conditioning Necessary? 67
When Should Battery Conditioning be Performed? 67
What Causes the Conditioning Message on the Monitor? 68
Conditioning Batteries 68
Battery Conditioning in the Monitor 68
Battery Conditioning with an External Charger 69
Touchscreen Calibration 69
Disabling/Enabling Touch Operation 71
Printer Test Report 71
4 Troubleshooting 73
Introduction 73
How To Use This Section 73
Who Should Perform Repairs 73
Replacement Level Supported 73
Software Revision Check 74
Software Compatibility Matrix 74
Obtaining Replacement Parts 75
Troubleshooting Guide 75
Checks for Obvious Problems 75
Checks Before Opening the Instrument 75
Checks with the Instrument switched Off 76
Checks with the Instrument Switched On, AC connected, without battery 76
Checks with the Instrument switched On, AC connected, with battery 76
Checks with the Instrument switched On, AC not connected, with battery 76
Initial Instrument Boot Phase 77
Troubleshooting Tables 79
How to use the Troubleshooting tables 79
5
Boot Phase Failures 80
Integrated Display is blank 82
Integrated Touch Display not functioning 82
External Display is blank (Slave Display) 83
External Touch Display not functioning 84
General Monitor INOP Messages 84
Remote Alarm Device 85
Remote Extension Device 86
Navigation Point 86
Keyboard/Mouse not functioning 87
Battery related problems 87
Bedside Network Status Icons 89
Network related problems 89
Wireless Ethernet Adapter (Proxim) 90
IIT-related Problems 91
IntelliVue 802.11 Bedside Adapter Problems 92
Multi-Measurement Server 93
MSL-related problems 93
Alarm Issues 95
Alarm Lamps 95
Alarm Tones 95
Alarm Behavior 96
Individual Parameter INOPS 96
Integrated 4-Slot Rack 97
Printer 97
Recorder 98
MIB / RS232 99
Flexible Nurse Call Relay 100
Basic Nurse Call Relay 100
Troubleshooting the ECG OUT/Alarm LED 100
Docking Station Problems 101
Data Flow Marker In and ECG Wave 102
Status Log 103
List of Error Codes 104
Troubleshooting with the Support Tool 105
Troubleshooting the Individual Measurements or Applications 105
5 Repair and Disassembly 107
Tools Required 107
Removing the I/O Boards 108
Removing the Interface Board 110
Separating the Front and Back Half of the monitor 111
Exchanging the Backlight Tubes 113
Removing the Flex Panel Adapter 115
Removing the Touchscreen 118
Removing the Flat Panel 121
6
Removing the Backlight Inverter Board 124
Removing the Silicon Mat for the Power Switch and the LEDs 125
Removing the Navigation Point Assembly 126
Removing the ECG Out/Alarm LED Board 128
Removing the Handle 129
Removing the Main Board 131
Removing the MSL Board 134
Removing the Internal Module Rack 135
Removing the Power Supply Assembly 135
Reassembling the Power Supply Assembly 137
Removing the Loudspeaker 141
Changing the Serial Number Plate 143
Exchanging the battery door 144
Plug-in Modules 146
Plug-In Module Disassembly 146
tcpO2/tcpCO2 Calibration Chamber Kit 147
Recorder Module Paper 148
Multi-Measurement Server (MMS) Disassembly 149
Tools required 149
Removing the Front Cover 149
Removing the Mounting Pin 150
Removing the Top Cover 151
Removing the DC/DC Board 151
Removing the MSL Flex Assembly 152
Reassembling the MSL Flex Assembly 153
Refitting the DC/DC board 154
Refitting the Cover 155
Refitting the Front Cover 156
Final Inspection 156
Te s t i n g 1 5 7
Measurement Server Extensions - Exchanging the Top Cover and the Dual Link Bar157
Exchange Procedures 157
Removing the Front Cover 158
Removing the Mounting Pin 158
Removing the Dual Link Bar 160
Removing the Top Cover 163
Refitting the Top Cover 163
Assembling the dual Link Bar 164
Refitting the Front Cover 167
Final Inspection 168
Te s t i n g 1 6 8
Disassembly Procedures for the M3015A Measurement Server Extension (HW Rev. A)
168
Removing the Front Cover 168
Removing the Extension Bottom Cover 169
Removing the CO2 Scrubber 170
7
Removing the Pump 171
Refit Procedures for the Measurement Server Extension 171
Refitting the CO2 Scrubber 172
Refitting the Pump 172
Refitting the Extension Bottom Cover 172
Refitting the Front Cover 173
General Reassembly/Refitting Comments 173
Following Reassembly 173
Smart Battery Charger LG1480 (M8043A) 174
Cleaning the Air Filter Mats 174
Replacing the Fan 175
IntelliVue Instrument Telemetry (IIT) 177
Exchanging the PCA board or the Flex Cable 177
Exchanging the IIT Module 178
Docking Station 179
Exchanging the Main Board 180
Exchanging the Flex Cable 183
6 Parts 187
MP40/MP50 Parts 188
Multi-Measurement Server Parts 191
MMS Part Number Overview and Identification 191
MMS Part Numbers - Front Bezel for M3001 #A01 & #A03 193
MMS Part Numbers - Front Bezel for M3001 #A02 194
MMS Part Numbers - Top Cover and MSL Assembly 195
MMS Exchange Part Numbers 196
M3001A #A01 Philips FAST SpO2 MMS Exchange Numbers 196
M3001A #A02 Nellcor OxiMAX-compatible MMS Exchange Numbers 197
M3001A #A03 MMS with Masimo SET SpO2 - Exchange Numbers 197
MMS Part Numbers - Label Kits 197
Measurement Server Extension Parts (M3012A, M3014A, M3015A and M3016A)197
MMS Extension Part Numbers - Release Mechanisms 198
MMS Extension Part Numbers - Top Cover and Link Bar 198
MMS Extension Part Numbers - Front Bezels 198
Exchange Parts List 205
Plug-in Modules Part Numbers 207
Part Number Table 207
Exchange Modules, Table 1 207
Exchange Modules, Table 2 208
Plug-In Modules Replaceable Parts 211
Single-Width Plug-In Module 211
Double-Width Plug-In Module 211
Plug-in Module Replaceable Parts 212
Plug-In Module Language Specific Front Housing Kits (incl. Silicone Buttons, Frames & Bezels),
Table 1 212
Plug-In Module Language Specific Front Housing Kits (incl. Silicone Buttons, Frames & Bezels),
8
Table 2 213
Plug-In Module Specific Bezels 214
BIS Solution Replaceable Parts 214
BIS Solution Components 215
BISx Solution Replacable Parts 215
BISx Solution Components 216
tcpO2/tcpCO2 Module Accessories 216
Smart Battery Charger Part Numbers 217
IntelliVue Instrument Telemetry Part Numbers 218
IntelliVue 802.11 Bedside Adapter Part Numbers* 219
Docking Station Part Numbers 219
External Display Part Numbers 220
Remote Alarm Device Part Numbers 222
Remote Extension Device Part Numbers 223
7 Installation Instructions 225
Unpacking the Equipment 225
Initial Inspection 226
Mechanical Inspection 226
Electrical Inspection 226
Claims For Damage and Repackaging 226
Claims for Damage 226
Repackaging for Shipment or Storage 226
Installing the Monitor (M8003A or M8004A) 226
Mounting Instructions 227
Assembling Mounts 227
Connections 227
Installing Interface Boards 229
Connection of Devices via the MIB/RS232 Interface 231
Installing the Docking Station 231
Installing Remote Devices 232
Mounting the 15” Remote Display (M8031A) 232
Connections 232
Mounting the 15” Remote Display (M8031B) 232
Connections 233
Mounting the 17” Remote Display (M8033A/B/C) 233
Connections 233
Video Cable Wiring Schematics 235
Multi-Measurement Server 235
Attaching the MMS to a Mount 235
Detaching the Measurement Server from a Mount 236
Positioning the Measurement Server on a Clamp Mount 236
Mounting the BIS Engine to the Monitor 237
Mounting the Wireless Ethernet Adapter to the Monitor 238
Connections 241
MSL Cable Termination 241
9
PS/2 Keyboard/Mouse243
Philips Clinical Network (Wired)244
Philips Clinical Network (Wireless)244
Nurse Call Relay244
Connections244
ECG Out Functionality245
Connections245
Configuration Tasks245
Setting Altitude and Line Frequency246
Configuring the Equipment Label246
Configuring the printer246
8 Site Preparation 247
Introduction247
Site Planning247
Roles & Responsibilities247
Site Preparation Responsibilities247
Procedures for Local Staff248
Procedures for Philips Personnel249
Monitor M8003A and M8004A Site Requirements249
Space Requirements249
Environmental Requirements249
Temperature249
Humidity249
Altitude250
Battery Storage250
Electrical and Safety Requirements (Customer or Philips)250
Safety Requirements250
Electrical Requirements250
Remote Device Site Requirements250
Connecting Non-Medical Devices251
Multi-Measurement Server M3001A 252
Space Requirements Multi-Measurement Server M3001A252
Environmental Requirements Multi-Measurement Server M3001A252
Cabling Options and Conduit Size Requirements252
Mounting253
Remote Displays (M8031A)253
Space Requirements253
Environmental Requirements254
Electrical and Safety Requirements254
Remote Displays (M8031B)254
Space Requirements254
Environmental Requirements254
Electrical and Safety Requirements255
Remote Displays - M8033A255
10
Space Requirements255
Environmental Requirements255
Electrical and Safety Requirements255
Remote Displays - M8033B255
Space Requirements255
Environmental Requirements256
Electrical and Safety Requirements256
Remote Displays - M8033C256
Space Requirements256
Environmental Requirements256
Electrical and Safety Requirements257
Cabling Options and Conduit Size Requirements257
Touch Cable258
Remote Alarm Devices258
Space Requirements258
Mounting258
Cabling Options and Conduit Size Requirements258
Remote Extension Device259
Space Requirements259
Mounting259
Cabling Options and Conduit Size Requirements259
Input Devices260
Local Printer260
Philips Medical LAN261
RS232/MIB/LAN Interface261
Nurse Call Relay Interface262
ECG Out Interface262
9 Gas Analyzers 263
A Philips 15210B Calibration Unit 265
Unpacking the Instrument265
Initial Inspection265
Claims for Damage266
Repacking for Shipment or Storage266
Instrument Identification266
Specification266
Operating Environment266
Operating Information266
Fitting the Gas Cylinders267
Storage of Gas Cylinders267
Disposal of Used Gas Cylinders267
Routine Maintenance267
Changing the Gas Cylinders267
Care and Cleaning267
Theory of Operation268
11
Gas Flow Performance Check268
Tes t Pr oc ed ur e268
Action if outside specification269
Disassembly270
Parts List272
B IntelliVue Product Structure 273
Upgrade Options274
12
This Service Guide contains technical details for the IntelliVue MP40 and MP50 Patient Monitor, the
measurement modules, the Multi-Measurement Server (MMS), and the Measurement Server
Extensions.
This guide provides a technical foundation to support effective troubleshooting and repair. It is not a
comprehensive, in-depth explanation of the product architecture or technical implementation. It offers
enough information on the functions and operations of the monitoring systems so that engineers who
repair them are better able to understand how they work.
It covers the physiological measurements that the products provide, the Measurement Server that
acquires those measurements, and the monitoring system that displays them.
Who Should Use This Guide
1
1Introduction
This guide is for biomedical engineers or technicians responsible for troubleshooting, repairing, and
maintaining Philips’ patient monitoring systems.
How to Use This Guide
This guide is divided into eight sections. Navigate through the table of contents at the left of the screen
to select the desired topic. Links to other relevant sections are also provided within the individual
topics. In addition, scrolling through the topics with the page up and page down keys is also possible.
Abbreviations
Abbreviations used throughout this guide are:
Name Abbreviation
IntelliVue MP40/MP50 Patient Monitor the monitor
Multi-Measurement Server MMS
Measurement Server Link MSL
Medical Information Bus MIB
Anesthetic Gas Module AGM
13
1 Introduction Responsibility of the Manufacturer
Responsibility of the Manufacturer
Philips only considers itself responsible for any effects on safety, EMC, reliability and performance of
the equipment if:
• assembly operations, extensions, re-adjustments, modifications or repairs are carried out by persons
authorized by Philips, and
• the electrical installation of the relevant room complies with national standards, and
• the instrument is used in accordance with the instructions for use.
To ensure safety and EMC, use only those Philips parts and accessories specified for use with the
monitor. If non-Philips parts are used, Philips is not liable for any damage that these parts may cause to
the equipment.
This document contains proprietary information which is protected by copyright. All Rights Reserved.
Reproduction, adaptation, or translation without prior written permission is prohibited, except as
allowed under the copyright laws.
Philips Medizin Systeme Böblingen GmbH
Hewlett-Packard Str. 2
71034 Böblingen, Germany
The information contained in this document is subject to change without notice.
Philips makes no warranty of any kind with regard to this material, including, but not limited to, the
implied warranties or merchantability and fitness for a particular purpose.
Philips shall not be liable for errors contained herein or for incidental or consequential damages in
connection with the furnishing, performance, or use of this material.
Passwords
In order to access different modes within the monitor a password may be required. The passwords are
listed below.
Monitoring Mode: No password required
Configuration Mode: 71034
Demo Mode: 14432
Service Mode: 1345
Consult the configuration guide before making any changes to the monitor configuration.
Warnings and Cautions
In this guide:
14
•A warning alerts you to a potential serious outcome, adverse event or safety hazard. Failure to
observe a warning may result in death or serious injury to the user or patient.
•A caution alerts you where special care is necessary for the safe and effective use of the product.
Failure to observe a caution may result in minor or moderate personal injury or damage to the
product or other property, and possibly in a remote risk of more serious injury.
Warnings and Cautions 1 Introduction
NOTE
When an IntelliVue MP40/MP50, software revision B.0 with battery option installed is used together
with an IntelliVue Infromation center D.01 or E.0 and the monitor issues battery-related INOPs, these
INOPS are displayed as “UNKNOWN” on the IntelliVue Information Center. Upgrade the
Information Center text catalog to E.01 if using an MP40/MP50 monitor with the Information
Center.
15
1 Introduction Warnings and Cautions
16
2Theory of Operation
Monitor Theory of Operation
The IntelliVue MP40/MP50 Patient Monitor:
• displays real-time data
• controls the attached measurement server
• alarms in the case of patient or equipment problems
• offers limited data storage and retrieval (trending)
• interfaces to the Philips Clinical Network and other equipment
A monitor with just a single integrated measurement server can be connected to additional building
blocks to form a monitoring system with a large number of measurements, additional interface
capabilities and one slave display. These elements cooperate as one single integrated real-time
measurement system.
2
System Boundaries
The following diagram discusses specific boundaries within the overall system with respect to their
openness and real-time requirements:
17
2 Theory of Operation Monitor Theory of Operation
Philips Clinical Network
Measurement LAN
combines components of one patient monitor;
real time requirements across all interconnected
elements
Philips Clinical Network (wired LAN)
connects multiple patient monitors,
information centers, application servers; closed
system, only Philips qualified products (tested
and with regulatory approval) are connected,
Philips is responsible for guaranteed real-time
functionality and performance
Philips Clinical Network (wireless)
like Philips Clinical Network (wired) LAN,
however due to current wireless technologies
available it has reduced bandwidth, longer
latencies, reduced functionality
Hospital LAN, Internet
Standard Network, not under Philips control,
no guaranteed service, no real-time
requirements
18
Monitor Theory of Operation 2 Theory of Operation
Hardware Building Blocks
The following hardware building blocks make up the monitoring system:
IntelliVue MP40
The MP40 monitor:
• integrates the display and processing unit into a single package
• uses a 12.1” TFT SVGA color display
• uses the Philips Navigation Point as primary input device; computer devices such as mice, trackball,
and keyboard can be added optionally
• has an optional 4-slot rack
• supports the MMS and MMS extensions.
19
2 Theory of Operation Monitor Theory of Operation
Building Blocks:
IntelliVue MP50
The MP50 monitor:
• integrates the display and processing unit into a single package
Power Supply
Backlight Inv. Board
LCD
Assembly
Panel Adapter
Flex
Battery
Board
Main Board
Rack
Board
ECG Out
4 Modules
I/O
Board
System
Interfa ce
Board
MSL
I/F
Dual MIB/ RS232 Interface
Parallel Printer Interface
Flexible Nurse Call Relay I/F
Dual PS2 Interface
Remote Device Interface
LAN (wireless)
LAN (wired)
Bas. Alarm Relays
Slave Video out
Docking interface
MMS CPU
• uses a 12.1” TFT XGA color display
• uses the Philips Touchscreen and Philips Navigation Point as primary input devices. Computer
devices such as mice, trackball, and keyboard can be added optionally.
• has an optional 4-slot module rack
• supports the MMS and MMS extensions
20
Monitor Theory of Operation 2 Theory of Operation
Building Blocks:
Assembly
Inv. Board
Optional Hardware
An integrated 4-Slot module rack and a battery board can be ordered optionally. One slot is provided
for one of two available system interface boards. If the monitor is ordered with the wireless LAN option
a wireless transmitter is required. For further details regarding the wireless network please refer to the
M3185A Philips Clinical Network documentation.
Power Supply
LCD
Touch
Panel
Ba cklig ht
Touch
Controller
Panel Adapter
B a ttery
Board
Flex
Rack
Board
Main Board
ECG Out
4 Modules
I/O
Board
System
Interfa ce
Board
MSL
I/F
Dual MIB/ RS232 Interface
Parallel Printer Interface
Flexible Nurse Call Relay I/F
Dual PS2 Interface
Remote Device Interface
LAN (wireless)
LAN (wired)
Bas. Alarm Rela ys
Slave Video out
Docking interface
MMS CPU
Powersupply
Hea ts ink
Figure 1 MP40/50 Rear
Powerplug
MMS Mount
MMS erver Mount
4-Slot Ra ck
Battery
Compa rtment
21
2 Theory of Operation Monitor Theory of Operation
IIT Adapter
IntelliVue 802.11
Bedside Adapter
Figure 2 MP40/50 Rear with internal IntelliVue 802.11 Bedside Adapter (left) and
with external IIT Adapter (US only) (right)
NOTE The IntelliVue 802.11 Bedside Adapter and the IIT Adapter require a monitor with Software Rel. C.0
or higher.
Compatible Devices
22
Figure 3 M8045A Docking Station
Monitor Theory of Operation 2 Theory of Operation
Figure 4 M3001A Multi-Measurement Server (MMS)
Figure 5 M3012A, M3014A, M3015A, M3016A MMS Extensions
23
2 Theory of Operation Monitor Theory of Operation
Figure 6 Parameter Modules
List of supported modules:
• M1006B Invasive Blood Pressure Module
• M1029A Temperature Module
• M1012A Cardiac Output / Continuous Cardiac Output Module
• M1018A Transcutaneous Gas Module
• M1020B SpO
Module
2
• M1027A EEG Module
• M1034A BIS Module
• M1116B Thermal Array Recorder Module
• M1032A VueLink Device Interface Module
24
Monitor Theory of Operation 2 Theory of Operation
Power Supply
CPU Boards
Figure 7 Power Supply Architecture
The AC/DC converter transforms the AC power coming from the power plug into 14 V/80W DC
source and isolates the monitoring system from the AC power mains.The 14V is distributed via power
bus and supplies power to all the components of the system: The 48V DC power needed for the MMS
and measurement server extension is created by an isolating DC/DC converter. The power needed for
the backlights is converted to 12V DC by the backlight DC/DC converter. The CPU and the nonisolated I/O boards are supplied with 3.3 V and 5 V DC power. Isolated interface boards require a
power of 10V AC. The remote HIF board and the LEDs are supplied with 12V DC power.
The CPU boards have an MPC852/50 MHz processor in the patient monitor and an MPC860/
50MHz in the MMS that provides a number of on-chip, configurable interfaces. An array of fast
UARTS with configurable protocol options are implemented in an ASIC (along with other system
functions such as independent watchdogs etc.), providing interfacing capabilities to measurement
modules and System Interface and I/O boards. The serial interfaces can easily be electrically isolated.
The main board contains additional video hardware.
25
2 Theory of Operation Monitor Theory of Operation
IntelliVue Patient Monitor Multi-Measurement Server
CPU Video
The CPUs provide two LAN interfaces to interconnect CPUs (via the MSL) and to connect to the
Philips Clinical Network.
The CPU capabilities are identical. Different loading options are coded on serial EEPROMs to support
the automatic configuration of the operating system at boot time.
System Interface and I/O Boards
Interfaces to the monitor are implemented via I/O boards. The location of these boards is restricted by
general rules. The I/O slot designations diagram and the I/O matrix which outline the I/O board
placement rules can be found in the Installation Instructions section.
The following is a list of Interface (I/O) boards which may be present in your monitor, depending on
your purchased configuration:
System Interface boards:
Bank of I/Os
Interfaces
CPU
Bank of I/Os
Measurement
Acquisition
•MSL
• Video for slave display
• Philips Clinical Network (LAN wired or wireless)
• Basic Alarm Relay (Nurse Call)
•Docking Interface
I/O boards:
•PS/2
• MIB/RS232
•Flexible Nurse Call
•Parallel printer
• Remote devices (Remote Alarm Device, Remote Extension Device)
• IntelliVue 802.11 Bedside Adapter
The specifications for the above listed interfaces can be found in the technical data sheet for the
monitor and in the Installation and Specifications chapter of the Instructions for Use.
26
Monitor Theory of Operation 2 Theory of Operation
Data Flow
The following diagram shows how data is passed through the monitoring system. The individual stages
of data flow are explained below.
Display
and User
Interface
Data
Acquisition
Data
Provider
Service
Applications
Data Acquisition
Monitoring data (for example patient measurement data in the form of waves, numerics and alerts) is
acquired from a variety of sources:
•Measurement Server
The Measurement Server connected to the internal LAN converts patient signals to digital data and
applies measurement algorithms to analyze the signals.
• External measurement devices
Data can be also acquired from devices connected to interface boards of the monitor. Software
modules dedicated to such specific devices convert the data received from an external device to the
format used internally. This applies to parameter modules and the Anesthetic Gas Module.
• Server systems on the Philips Clinical Network
To enable networked applications such as the other bed overview, data can be acquired from server
systems attached to the Philips Clinical Network, for example a Philips Information Center
Persistent
Data
Storage
Data
Output
Data Provider System Service
All data that is acquired from measurement servers or external measurement devices is temporarily
stored by a dedicated data provider system service. All monitor applications use this central service to
access the data in a consistent and synchronized way rather than talking to the interfaces directly.
This service makes the applications independent of the actual type of data acquisition device.
The amount of data stored in the data provider system service varies for the different data types. For
example several seconds of wave forms and the full set of current numerical values are temorarily stored
in RAM.
27
2 Theory of Operation Monitor Theory of Operation
Persistent Data Storage System Service
Some applications require storage of data over longer periods of time. They can use the persistent data
storage system service. Dependent on the application requirements, this service can store data either in
battery backed-up (buffered) memory or in flash memory. The buffered memory will lose its contents
if the monitor is without power (not connected to mains) for an extended period of time. The flash
memory does not lose its contents.
The trend application for example stores vital signs data in a combination of flash memory and
buffered memory, while the system configuration information (profiles) is kept purely in flash
memory.
Display and User Interface Service
Applications can use high level commands to display monitoring data or status and command windows
on the internal LCD panel. These commands are interpreted by the display manager application. This
application controls the dedicated video hardware which includes video memory and a special ASIC.
User input is acquired from a variety of input devices, for example the Navigation Point, the
touchscreen or other standard input devices (keyboard, mouse) which may be attached to I/O boards.
The system software makes sure that the user input is directed to the application which has the
operating focus.
Data Output
The monitoring system is very flexible and customizable regarding its data output devices. Built-in
devices (for example LAN, alarm lamps, speaker, video) provide the basic output capabilities.
These capabilities can be enhanced by adding additional I/O boards, as required in the specific enduser setup. The additional I/O boards typically provide data to externally attached devices, for example
to printers, RS232 based data collection devices, nurse call systems etc.
The monitor can identify I/O boards by means of a serial EEPROM device that stores type and version
information. The operating system detects the I/O boards and automatically connects them with the
associated (interface driver) application. For some multi-purpose cards it is necessary to configure the
card for a particular purpose first (for example the dual MIB/RS232 card can support external touch
display (only slave display), data import, data export).
Monitor Applications
The monitor applications provide additional system functionality over the basic measurement and
monitoring capabilities. This includes for example trending, report generating, event storage or derived
measurements.
In general, the monitor applications use the data provider system service to access the measurement
data. Application interfaces to the other system services allow the application to visualize data, to store
data over extended periods of time or to output data to other devices.
Internal LAN (Measurement Server Link)
All components of the monitoring system (including measurement servers and CPUs in the monitor)
communicate using an IEEE802.3/ Ethernet LAN in the Measurement Server Link (MSL). This
network is used to distribute data between the components, for example:
28
• Digitized patient signals including wave data, numerical data and status information (typically from
the measurement server to a display unit)
Monitor Theory of Operation 2 Theory of Operation
• Control data representing user interactions (typically from the display unit to a measurement server)
• Shared data structures, for example representing patient demographical data and global
configuration items
The internal LAN allows plug and play configuration of the monitoring system. The system
automatically detects plugging or unplugging of measurement servers and configures the system
accordingly.
The components on the internal LAN are time-synchronized to keep signal data consistent in the
system. Dedicated hardware support for synchronization eliminates any latency of the network driver
software.
The integrated LAN provides deterministic bandwidth allocation/reservation mechanisms so that the
real-time characteristic of signal data and control data exchange is guaranteed. This applies to the data
flow from the measurement server to the monitor (for example measurement signal data) and the data
flow from the monitor to a measurement server (for example to feed data to a recorder module).
Integrated communication hubs in the monitor allow flexible cabling options (star topology, daisy
chaining of servers).
Philips Clinical Network
The monitoring system may be connected to the Philips Clinical Network, for example to provide
central monitoring capabilities or other network services. This connection may be through a normal
wired connection or through a wireless connection.
The monitor supports the connection of an external wireless adapter or an internal wireless adapter
(#J35). Switching between wired and wireless networks is automatically triggered by the plugging or
unplugging of the network cable.
The Philips Clinical Network protocols function very similarly to the protocols used on the internal
LAN.
After configuration, the monitoring system sends the digitized patient signals including wave data,
numerical data and status information onto the network. Control data representing user interactions
can be exchanged between the monitoring system and a central station bi-directionally.
MDSE Internal LAN
Additional protocols are supported for networked applications, for example for the other bed overview
function, which allows viewing of monitoring data from other patients on the network.
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2 Theory of Operation Monitor Theory of Operation
For plug and play operation, the monitoring system uses the standard BootP protocol to automatically
acquire a network address.
How does the Support Tool Work with the Monitor
The support tool is a Windows application typically installed on the laptop of a customer engineer or a
biomedical engineer working in the customer’s own service department.
The purpose of the support tool is to upgrade, configure and diagnose all monitoring components
(modules, measurement servers, and monitors) in the system over the network.
The service protocol developed for this purpose uses a raw access to the devices without the need for IP
addresses etc. over a standard customer network installation, so that even defective devices can be
upgraded as long as the few kBytes of initial boot code are working. The boot code itself can also be
upgraded using the same protocol.
The tool allows access to internal service information and to serial numbers. It can be remotecontrolled, for example via a dial-up connection from a response center, provided the proper
infrastructure is in place.
For details see the Instructions for Use for the Support Tool.
Monitor Software Block Diagram
Figure 8 shows the functional block diagram for the monitoring system. A legend explaining terms and
diagram elements follows. The information below varies depending on the purchased monitor options.
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