Philips Intellivue MP60, IntelliVue 70 User manual

IntelliVue MP60/70

Service Guide

IntelliVue Patient Monitor

MP60/70

Patient Monitoring

Part Number M8000-9301A

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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

2 Theory of Operation 15

Integrated Monitor Theory of Operation 15

System Boundaries 15 Hardware Building Blocks 17

IntelliVue MP60 17 IntelliVue MP70 18 Optional Hardware 19 Compatible Devices 19 Power Supply 20 CPU Boards 20 I/O Boards 22

Data Flow 23

Data Acquisition 23 Data Provider System Service 23 Persistent Data Storage System Service 24 Display and User Interface Service 24 Data Output 24 Monitor Applications 24 Internal LAN (Measurement Server Link) 24 Philips Clinical Network 26

How does the Support Tool Work with the Monitor 26 Monitor Software Block Diagram 27 Block Diagram Legend 28

3 Testing and Maintenance 33

Concepts 33 Test Reporting 33 Recommended Frequency 34 Tests Recommended When Performing... 35

Installation 35 Repair 35

Preventive Maintenance 35 Performance Verifications 35 Upgrades 35

Te s t s 36

Visual Test 36 Power On Test 36 NBP Tests 36

NBP Accuracy Test 36 NBP Leakage Test 37 NBP Linearity Test 37 Valve Tes t 38

Sidestream CO2 Per formance Test 38

Barometric Pressure Check and Calibration 39 Leakage Check 39 Pump Check 40 Flow Rate Check and Calibration 40 Noise Check 41

Gas Measurement Calibration Check 41

Calibration Verification 42 Reset Time Counters 42

Temperature Accuracy 43 ECG/Resp Performance Test 43

ECG Performance 43 Respiration Performance 43

Invasive Pressure Performance Test 44 SpO2 Performance Test 44 Cardiac Output Performance Test 44

Service Tool Procedure, Version 1 44 Service Tool Procedure, Version 2 45

BIS Performance Test 45

PIC/DSC Test 45

Nurse Call Relay Performance Test 45

Phone Jack Type Connector Test 45 Multi-Port Nurse Call Connector Test 46

ECG Sync Performance Test 47 VueLink Tests using VueLink Test Module 47

Tes t Pr o c e d u r e 4 7

Safety Testing 48

Warnings, Cautions, and Safety Precautions 48 Safety Test Procedures 49

Touchscreen Calibration 52

4 Troubleshooting 53

Introduction 53 How To Use This Section 53 Who Should Perform Repairs 53

Replacement Level Supported 53 Software Revision Check 54 Obtaining Replacement Parts 54 Troubleshooting Guide 54

Checks for Obvious Problems 54 Checks Before Opening the Instrument 55

Checks with the Instrument switched Off 55 Checks with the Instrument Switched On, AC connected 55 Initial Instrument Boot Phase 56

Troubleshooting Tables 58

How to use the Troubleshooting tables 58 Boot Phase Failures 59 Integrated Display is blank 61 Integrated Touch Display not functioning 62 External Display is blank 63 External Touch Display not functioning 64 General Monitor INOP Messages 65 Remote Alarm Device 66 Remote Extension Device 66 Speed Point 67 Keyboard/Mouse not functioning 67 Network related problems 69 Wireless Network 70 Multi-Measurement Server 71 MSL-related problems 72 Alarm Issues 74 Alarm Lamps 74 Alarm Tones 74 Alarm Behavior 74 Individual Parameter INOPS 75 Flexible Module Server 76 Integrated Module Slots 76 Printer 77 Recorder 78 MIB / RS232 80 Flexible Nurse Call Relay 81 Troubleshooting the ECG OUT 81 Data Flow Marker In and ECG Wave 82

Status Log 83 Troubleshooting with the Support Tool 83 Troubleshooting the Individual Measurements or Applications 85

5 Repair and Disassembly 87

Tools Required 87

Minimal Monitor Disassembly 87

Disconnecting the SpeedPoint 87

Removing the I/O Boards 89 Removing the ECG Out board if no SRL2 board is plugged 90 Removing the Integrated Module Slot, the Measurement Server Mount or blank covers 91 Separating the front and back half of the monitor 92 Removing Power Switch board 94 Removing the Backlights 95

Further Disassembly 95

Exchanging the Touchscreen 95 Exchanging the LCD Assembly 96 Removing Power Supply 98 Removing the Speaker 99 Removing the ECG Out Board with an SRL2 Board plugged 100 Removing the Video Board 101 Removing the Main Board 101

Flexible Module Server (FMS) Disassembly 103

Removing the Handle and the Measurement Server Mount 103

Plug-in Modules 107

Plug-In Module Disassembly 107 tcpO2/tcpCO2 Calibration Chamber Kit 108 Recorder Module Paper 109

Disassembly Procedures for the Measurement Server Extension 109

Removing the Front Cover 110 Removing the Extension Bottom Cover 110 Removing the CO2 Scrubber 111 Removing the Pump 112

Refit Procedures for the Measurement Server Extension 113

Refitting the CO2 Scrubber 113 Refitting the Pump 113 Refitting the Extension Bottom Cover 114 Refitting the Front Cover 114 General Reassembly/Refitting Comments 114 Following Reassembly 114

6 Parts 115

MP60/MP70 Parts 116

Exchange Parts 116 Replacement Parts 117

Flexible Module Server Parts 118

Exchange and Replacement Parts 118

Multi-Measurement Server Parts 119 Measurement Server Extension Parts (M3015A and M3016A) 120

Exchange Parts List 122

Plug-in Modules Part Numbers 124

Part Number Table 124

Exchange Modules, Table 1 124 Exchange Modules, Table 2 125

Plug-In Modules Replaceable Parts 127

Single-Width Plug-In Module 127 Double-Width Plug-In Module 127 Plug-in Module Replaceable Parts 128 Plug-In Module Language Specific Front Housings, Table 1 128 Plug-In Module Language Specific Front Housings, Table 2 129 Plug-In Module Specific Bezels 130

BIS Module Replaceable Parts 130

BIS Module Components 131

tcpO2/tcpCO2 Module Accessories 132

External Display Part Numbers 132 Remote Input Devices Part Numbers 133 Remote Alarm Device Part Numbers 134 Remote Extension Device Part Numbers 134

134

7 Installation Instructions 135

Unpacking the Equipment 135 Initial Inspection 136

Mechanical Inspection 136 Electrical Inspection 136 Claims For Damage and Repackaging 136

Claims for Damage 136 Repackaging for Shipment or Storage 136

Installing the Monitor (M8005A or M8007A) 136

Mounting Instructions 137

Assembling Mounts 137

Connections 138 Installing Interface Boards 139

Installing Remote Devices 139

Mounting the Remote Display (M8031A) 139

Connections 140

Flexible Module Server and/or Multi-Measurement Server 140

Attaching the MMS to a Mount 140 Detaching the Measurement Server from a Mount 140 Positioning the Measurement Server on a Clamp Mount 140 Mounting the MMS Mount to the FMS (M8048A) 141 Mounting the Remote Extension Device to the FMS 142 Mounting the BIS Module to the FMS 142 Mounting the FMS 143 Connections 143 MSL Cable Termination 144

Remote Alarm Devices 146

Mounting 146 Connections 146

Remote Extension Device 147

Mounting 147 Connections 148 Cabling 148

Philips Clinical Network 149 Flexible Nurse Call Relay 149

Connections 149

ECG Out Functionality 149

Connections 149

Configuration Tasks 151

Setting Altitude, Line Frequency and Barometric Pressure 151 Configuring the Equipment Label 151

8 Site Preparation 153

Introduction 153

Site Planning 153 Roles & Responsibilities 153

Site Preparation Responsibilities 153 Procedures for Local Staff 154 Procedures for Philips Personnel 156

Monitor M8005A and M8007A Site Requirements 156

Space Requirements 156 Environmental Requirements 156

Te m p e r at u r e 15 6 Humidity 157 Altitude 157

Electrical and Safety Requirements (Customer or Philips) 157

Safety Requirements 157 Electrical Requirements 157

Remote Device Site Requirements 157

Multi-Measurement Server M3001A or Flexible Module Server M8048A 159

Space Requirements Multi-Measurement Server M3001A 159 Space Requirements Flexible Module Server M8048A 159 Environmental Requirements Multi-Measurement Server M3001A 159 Environmental Requirements Flexible Module Server M8048A 159 Cabling Options and Conduit Size Requirements 160

Remote Displays (M8031A) 161

Space Requirements 161 Environmental Requirements 161 Electrical and Safety Requirements 161 Cabling Options and Conduit Size Requirements 161

Remote Alarm Devices 163

Space Requirements 163 Cabling Options and Conduit Size Requirements 163

Remote Extension Device 163

Space Requirements 163

Cabling Options and Conduit Size Requirements 163 Input Devices 164

Local Printer 164

Philips Medical LAN 164 MIB Interface 165 Flexible Nurse Call Relay Interface 165 ECG Out Interface 166

9 Anesthetic Gas Module 167

Introduction 167

Description 167 Product Structure 167 Physical Specifications 167 Environmental Specifications 168 Performance Specifications 168

CO2 Measurement 169 AWRR derived from CO2 Waveform 169 N2O Measurement 169 O2 Measurement 169 Alarm Delay: 170 Apnea Alarm: 170 INOP Alarms 170

General Measurement Principles 171 Theory of Operation 171

Main PC Board 172 Power Supply 172 Pneumatic System 172 Pump 173 Wate rt rap 174 Sample Flow Through the Pneumatic Path 174

Agent Identification Assembly 175

Measurement Principle 175

O2 Sensor 176

Specifications 176 Measurement Principle 176

Infrared Measurement Assembly 176

Installation and Patient Safety 178

Physical Installation 178 Environment 178 Label Sheet 179 Making Connections to the AGM 180 Sample Gas Connections to the Gas Exhaust 180

Returning the Gas Sample 180 Setting Up the Gas Return 181 Removing the Gas Sample 182

Setup and Configuration Procedures 182

Altitude Configuration 182 Connect Sample Input Tubing 182

Preventive Maintenance (PM) Tasks 182 Post-Installation Checks 183 Safety Requirements Compliance and Considerations 183

Explanation of Symbols Used 183 Power Supply Requirements 184 Grounding the System 184 Equipotential Grounding 184 Combining Equipment 185

Checking and Calibrating the Anesthetic Gas Module 186

Access Service Functions of the M1026A Anesthetic Gas Module 186 When and how to check the Philips M1026A Anesthetic Gas Module 187 Equipment required for checking 188 Checks and adjustments 188

Performance Leakage Check 188 Performance Diagnostic Check 189 Performance Flowrate Check 189 Total Flowrate Check and Adjustment in Purge Mode 190 Measurement Path Flowrate Check and Adjustment 190 Total Flowrate Check in Normal Mode 192

Zero Calibration 192 Barometric Pressure Check and Calibration 193 Span Calibration Check 194

Disposal of Empty Calibration Gas Cylinder 197

Maintaining the Anesthetic Gas Module 198

Preventive Maintenance (PM) Tasks 198 Cleaning 198 Replace PM Parts 199

Internal Nafion Tubing with Bacterial Filters and manifold Seals 199

Room-Air Filter 200 Pump Filter 201 Performance Checks 202

Other factors to maximize uptime or reduce cost of ownership: 202

Troubleshooting the Anesthetic Gas Module 203

Compatibility Criteria for the AGM and the IntelliVue Monitors 203 Flow Charts for Communication and Measurement Type Problems 203 Hardware Related Troubleshooting Strategy 209 INOPs 210 Calibration Checks 213

Calibration Checks Troubleshooting Table 213

Diagnostic Checks 215

Problem Solving Hierarchy 215 Pneumatic System Diagnostic Checks 216 O2 Assembly Diagnostic Checks 217 Optical Path Disgnostic Checks 219

IR Measurement Assembly Diagnostic Checks 220 Agent ID Assmebly Diagnostic Checks 221 Power Supply Diagnostic Checks 222 Operating Temperature Diagnostic Checks 223

Test Points, Connectors and Jumpers 223

Tes t Poi n t s 2 2 3 Connectors 224 Jumpers 225

Repairing the Anesthetic Gas Module 227

Introduction 227 The Top Cover 230

Removal 230 Replacement 230

Lifting the IR Measurement Mounting Bracket 233

Removal 233 Replacement 233

Infrared Measurement Assembly Head 235

Transferring NVRAM Data to a Replacement Head 235

Sample Cell 239

Removal 239 Replacement 239

Solenoid Valve #1 242

Removal 242 Replacement 242

Power Supply Unit 244

Removal 244 Replacement 244

Main PC Board 245

Removal 245 Replacement 246

O2 Sensor 247

Removal 247 Replacement 248

Agent Identification Head 251

Removal 251 Replacement 251

Pump 252

Removal 252 Replacement 252

Fan 253

Removal 253 Replacement 254

Solenoid Valve #2 256

Removal 256 Replacement 256

Top C ov e r PC B o a rd 258

Removal 258 Replacement 258

Watertrap Manifold and Protector 259

Removal 259 Replacement 259

Power Fuses 260

Removal 260 Replacement 260

Test and Inspection Matrix 262 When to Perform Test Blocks 266 Safety Test Appendix 267

Parts List 270

Calibration Equipment 274

This Service Guide contains technical details for the IntelliVue MP60 and MP70 Patient Monitor, the Multi- Measurement Server (MMS), the Flexible Module Server (FMS) 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

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 MP60/MP70 Patient Monitor the monitor

Flexible Module Server FMS

Multi-Measurement Server MMS

1 Introduction Responsibility of the Manufacturer

Responsibility of the Manufacturer

Philips only considers itself responsible for any effects on safety, 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, use only those Philips parts and accessories specified for use with the monitor. If nonPhilips 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 Medizinsysteme 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.

2Theory of Operation

Integrated Monitor Theory of Operation

The IntelliVue Patient Monitor:

• displays real-time data

• controlls the attached measurement servers

• 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 multiple slave displays. These elements cooperate as one single integrated real-time measurement system.

System Boundaries

The following diagram discusses specific boundaries within the overall system with respect to their openness and real-time requirements:

Philips Clinical Network

2 Theory of Operation Integrated Monitor Theory of Operation

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

Integrated Monitor Theory of Operation 2 Theory of Operation

Hardware Building Blocks

The following hardware building blocks make up the monitoring system:

IntelliVue MP60

The MP60 monitor:

• integrates the display and processing unit into a single package

• uses a 15” TFT XGA Color display

• uses the Philips SpeedPoint as primary input device; computer devices such as mice, trackball, and

keyboard can be added optionally

• has an optional recorder

• supports the Flexible Module Server (FMS)

Building Blocks:

Power Supply

LCD

Assembly

LCD

Adapter

Main Board

I/F

Boards

MSL

I/F

|| I/F To Local Printer

PS/2 To SpeedPoint

MIB To AGM

Video I/F

Board

To Ext. Display

ECG Out

2 Theory of Operation Integrated Monitor Theory of Operation

IntelliVue MP70

The MP70 monitor:

• integrates the display and processing unit into a single package,

• uses a 15” TFT XGA Color display

• uses the Philips Touchscreen as primary input device, whereas the Philips SpeedPoint and computer

devices such as mice, trackball, and keyboard can be added optionally

• has an optional recorder

• supports the Flexible Module Server (FMS)

Building Blocks:

Power Supply

LCD

Assembly

LCD

Adapter

Touch

Panel

Touch

Controller

Main Board

Video I/F

Board

I/F

Boards

MSL

I/F

To Ext. Display

|| I/F To Local Printer

PS/2 To External input devices

MIB To AGM

Integrated Monitor Theory of Operation 2 Theory of Operation

Optional Hardware

A measurement server mount and /or an integrated module slot can be ordered optionally.

Measurement Server Mount

Integrated Module Slot

Compatible Devices

Figure 1 M8048A Flexible Module Server (FMS)

Figure 2 M3001A Multi-Measurement Server (MMS)

2 Theory of Operation Integrated Monitor Theory of Operation

Power Supply

Front End Modules

Backlight

AC/DC 48V /120W

Isolating DC/DC

56 V

Converter

Backlight DC/DC Converter

DC/DC

5 V,

FMS

60V

MMS, MMS-EXT

12 V

3.3 V CPU

5 V

DC/DC

DC Bus

Integrated Module Rack

DC/DC Converter

Figure 3 Power Supply Architecture

The AC/DC converter transforms the AC power coming from the power plug into 48 V/120W DC source and isolates the monitoring system from the AC power mains.The 48V is distributed via power bus and supplies power to all the components of the system: The 56 V DC power needed for the FMS, 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 is supplied with 3.3 V and 5 V DC power. The transformation is performed in two steps: The first DC/ DC converter is a power regulator which reduces the variations caused by load changes on the 48V power bus. The second DC/DC converter converts the power to the needed voltage. Interface boards require a power of 10V DC. The HIF board and the LEDs are supplied with 12V DC unregulated power. The integrated module slot requires a 5 V supply for the modules slots and uses the 48V and another DC/DC converter to create 60 V in order to supply power for the modules.

DC/DC

10 V AC

)

12 V

)

unreg

I/F boards

HIF, LED’s,

wireless

5 V

Front End

60 V

Modules

CPU Boards

The CPU boards have an MPC860 50 MHz processor that provides a number of on-chip, configurable interfaces. An array of 12 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 I/O boards. The serial interfaces can easily be electrically isolated. The main board contains additional video hardware.

Integrated Monitor Theory of Operation 2 Theory of Operation

Flexible Module Server

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The CPUs provide two LAN interfaces to interconnect CPUs (via the Internal LAN) or 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.

IntelliVue Patient Monitor Multi-Measurement Server

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2 Theory of Operation Integrated Monitor Theory of Operation

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:

• MSL

• Video (analog)

• Philips Clinical Network (LAN)

• PS/2

• MIB/RS232

• Flexible Nurse Call

• Parallel printer

• Remote devices (Remote Alarm Device, Remote Extension Device)

The specifications for the above listed interfaces can be found in the technical data sheet for the monitor and in the Specifications chapter of the Instructions for Use.

Integrated 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 Servers

The Measurement Servers connected to the internal LAN convert patient signals to digital data and apply 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.

2 Theory of Operation Integrated Monitor Theory of Operation

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.

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 SpeedPoint, 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 cards and automatically connects the I/O board 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, 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:

Integrated Monitor Theory of Operation 2 Theory of Operation

• Digitized patient signals including wave data, numerical data and status information (typically from the measurement server to a display unit)

• 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 and the FMS allow flexible cabling options (star topology, daisy chaining of servers).

MDSE

Internal

LAN

MDSE Internal LAN

MDSE

Internal

LAN

2 Theory of Operation Integrated Monitor Theory of Operation

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 off-the-shelf wireless adapter. This allows a simple field upgrade as well as a technology upgrade in the future. 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.

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.

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 an NT 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 monitors route network traffic between the Philips Clinical Network to the internal LAN.

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.

Integrated Monitor Theory of Operation 2 Theory of Operation

Monitor Software Block Diagram

Figure 4 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.

Philips Clinical

Network

LAN

MDSE

Video Out

Indicators

Color LCD

Display

Applications

System Services

Real Time Operating System

Visual

LEDs

Audio

Indicators

Loudspeaker Touch

Input Devices (including PS/2)

Trim Knob

Interfaces

Interface Managers

Record Alarm Trend HiRes ADT

Reports

Calc Param

Events

ECG-Out Marker-In

MDSE

LAN

RS-422

M3001A MultiMeasurement Server

12-lead ECG/Resp, NBP, SpO2,

Press/Temp

Figure 4 IntelliVue Patient Monitoring System Functional Block Diagram

M3015/16A Measurement Server

Extension

CO2, Press/Temp

M1006B Press

Plug-In Modules

M1012A C.O.

LAN RS-422

M1018A tcPO2/CO2

M1029A Temp

RS-422

Flexible Module Server

M1032A VueLink

M1116B Recorder

2 Theory of Operation Integrated Monitor Theory of Operation

Block Diagram Legend

Functional Block Description

Services

Operating System The Operating System (OS) provides a layer of isolation between

the specific hardware implementation and the application software. The OS performs system checks and allocates resources to ensure safe operation when the system is first started. This includes internal self-tests on several hardware modules and configuration checks for validity of configuration with the operating software. During normal operation, the OS continues to run checks on system integrity. If error conditions are detected the OS will halt monitoring operations and inform the operator about the error condition.

System Services The System Services provide generic common system services.

In particular: It uses a real-time clock component to track time. It synchronizes to network time sources and verifies the accuracy of the system time information. It is also responsible for managing persistent user configuration data for all Measurement Servers, Flexible Module Servers and IntelliVue Patient Monitoring System software modules. User configuration data is stored in a nonvolatile read/write storage device

Applications

Reports The Reports Service retrieves current and stored physiological

data and status data to format reports for printing paper documentation. The following reports are supported:

• Vital Signs Report

• Graphical Trend Report

• Event Review Report

• Event Episode Report

• ECG Report (12 Lead/Multi-Lead)

• Cardiac Output Report

• Calculations Report (Hemodynamic/Oxygenation/

Ventilation)

• Calculations Review Report

• Wedge R eport

• Tes t Re p or t

• Other reports (e.g. Loops, Review Applications, Drug

report)

The Reports service generates report data which can be printed on a local or a central printer.

Integrated Monitor Theory of Operation 2 Theory of Operation

Functional Block Description

Record The Record Service retrieves current and stored physiological

data and status data to format a continuous strip recording. A recording can be triggered manually by the operator or automatically by an alarm condition. The Record Service uses the services of the Recorder Interface to control an M1116B Recorder in the FMS. The Record Service can also send data to a central recorder.

Alarm The Alarm Service contains logic that prioritizes alarm conditions

that are generated either by the Measurement Servers, Flexible Module Server, or by IntelliVue Patient Monitoring System software modules. Visual alarm signals (messages) are displayed at the top of the IntelliVue Patient Monitoring System display and alarm sounds are generated by a loudspeaker. Alarm conditions may be generated when a physiological parameter exceeds preselected alarm limits or when a physiological parameter or any other software module reports an inoperative status (technical alarm, for example, the ECG leads may have fallen off the patient). The Alarm service manages the alarm inactivation states, for example suspension of alarms, silencing of alarms, and alarm reminder. Alarm signals may also be configured as latching (alarm signals are issued until they are acknowledged by the operator, even when the alarm condition is no longer true). The Alarm service controls the visual alarm signals (alarm lamps).

Trend The Trend service stores the sample values of physiological data

and status data with a resolution of 12 seconds, 1 minute or 5 minutes for a period of up to 48 hours. The data is kept in battery buffered read/write storage and flash memory devices to be preserved across power failures. The stored data is protected via consistency checks and checksums. When a new patient is admitted, the trend database erases all data of the previous patient.

HiRes The OxyCRG (Oxygen CardioRespiroGram) service derives a

high-resolution trend graph from the Beat-to-Beat Heart Rate,

or tcpO2, and Respiration physiological data. The

SpO

OxyCRG is specialized for neonatal applications, allowing the opeartor to identify sudden drops in Heart Rate (Bradycardia) and SpO

or tcpO2 (Desaturations), and supporting the operator

in visualizing Apnea situations.

ADT The ADT (Admit/Discharge/Transmit) service maintains the

patient demographics information. The operator may admit a new patient, discharge the old patient and enter or modify the patient demographics. The ADT service also supports the transport of a patient (trend database) with the M3001A MultiMeasurement Server. The ADT service controls the deletion of old patient data, the upload of trend data from the M3001A and the switching back of all settings to user defaults. It also synchronizes patient information with a central station on the network.

2 Theory of Operation Integrated Monitor Theory of Operation

Functional Block Description

Calc Param The Calc Param (Calculated Parameters) service accesses current,

stored and manually entered physiological data as input to calculation formulas. With these formulas, derived hemodynamic, oxygenation and ventilation variables are computed. The calculation results, including the input parameters, are stored for later review using the Trend service.

Interface Managers

MDSE The MDSE (Medical Data Service Element) Interface Manager is

responsible for the exchange of real-time data between the IntelliVue Patient Monitoring System display unit and the Measurement Servers and Flexible Module Server as well as between the IntelliVue Patient Monitoring System display unit and other devices attached to the network. MDSE establishes and maintains a data communication link between the devices. It provides configuration information about the remote device to applications in the local device and it allows the exchange of measurement data and status information between the devices.

Printer The Printer Interface Manager provides a high level interface to a

printer. It provides means to:

• establish a connection to the printer

• transfer data to the printer

• get status of the printer

• close connection to the printer

The Printer Interface Manager also supervises the connection to the printer and whether the printer accepts data (for example paper out). The Printer Interface Manager notifies the operator in such cases.

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