Philips Intellivue MP60, IntelliVue 70 User manual

IntelliVue MP60/70

Service Guide

IntelliVue Patient Monitor

MP60/70

Patient Monitoring

Part Number M8000-9301E

*M8000-9301E*

Table 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	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	20
Power Supply	21
CPU Boards	22
I/O Boards	22
Data Flow	23
Data Acquisition	23
Data Provider System Service	24
Persistent Data Storage System Service	24
Display and User Interface Service	24
Data Output	24
Monitor Applications	24
Internal LAN (Measurement Server Link)	25
Philips Clinical Network	26
How does the Support Tool Work with the Monitor	26
Monitor Software Block Diagram	26
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

3

Preventive Maintenance	35
Performance Verifications	35
Upgrades	36
Tests	36
Visual Test	36
Power On Test	36
NBP Tests	36
NBP Accuracy Test	36
NBP Leakage Test	37
NBP Linearity Test	38
Valve Test	38
Microstream CO2 Performance Test	38
Barometric Pressure Check and Calibration	39
Leakage Check	39
Pump Check	40
Flow Rate Check and Calibration	41
Noise Check	41
CO2 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	44
Invasive Pressure Performance Test	44
SpO2 Performance Test	44
Cardiac Output Performance Test	44
Service Tool Procedure, Version 1	45
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 (Traditional Nurse Call)	46
Multi-Port Nurse Call Connector Test (Flexible Nurse Call)	46
ECG Sync Performance Test	47
VueLink Tests using VueLink Test Module	47
Test Procedure	48
Safety Testing	48
Warnings, Cautions, and Safety Precautions	49
Safety Test Procedures	49
Touchscreen Calibration	52
Disabling/Enabling Touch Operation	52
4 Troubleshooting	55
Introduction	55
How To Use This Section	55

4

Who Should Perform Repairs	55
Replacement Level Supported	55
Software Revision Check	56
Software Compatibility Matrix	56
Obtaining Replacement Parts	56
Troubleshooting Guide	56
Checks for Obvious Problems	57
Checks Before Opening the Instrument	57
Checks with the Instrument switched Off	57
Checks with the Instrument Switched On, AC connected	57
Initial Instrument Boot Phase	58
Troubleshooting Tables	59
How to use the Troubleshooting tables	59
Boot Phase Failures	60
Integrated Display is blank	62
Integrated Touch Display not functioning	63
External Display is blank	64
External Touch Display not functioning	65
General Monitor INOP Messages	65
Remote Alarm Device	67
Remote Extension Device	67
Speed Point	67
Keyboard/Mouse not functioning	68
Network related problems	69
Wireless Network	70
Multi-Measurement Server	71
MSL-related problems	71
Alarm Issues	73
Alarm Lamps	73
Alarm Tones	74
Alarm Behavior	74
Individual Parameter INOPS	74
Flexible Module Server	75
Integrated Module Slots	75
Printer	76
Recorder	77
MIB / RS232	78
Flexible Nurse Call Relay	79
Troubleshooting the ECG OUT	79
Data Flow Marker In and ECG Wave	79
Status Log	80
List of Error Codes	82
Troubleshooting with the Support Tool	82
Troubleshooting the Individual Measurements or Applications	82

5

5 Repair and Disassembly		83
Tools Required		83
Minimal Monitor Disassembly		83
Disconnecting the SpeedPoint		83
Removing the I/O Boards		84
Removing the ECG Out board if no MSL2 board is plugged		85
Removing the Integrated Module Slot, the Measurement Server Mount or blank covers		86
Separating the front and back half of the monitor		87
Removing Power Switch board		88
Removing the Backlights		89
Further Disassembly		89
Exchanging the Bezel (with or without Touchscreen)		89
Exchanging the LCD Assembly		91
Removing Power Supply		92
Removing the Speaker		93
Removing the ECG Out Board with an MSL2 Board plugged		94
Removing the Video Board		95
Removing the Main Board		96
Flexible Module Server (FMS) Disassembly		98
Removing the Handle and the Measurement Server Mount		98
Plug-in Modules		103
Plug-In Module Disassembly		103
tcpO2/tcpCO2 Calibration Chamber Kit		104
Recorder Module Paper		105
Disassembly Procedures for the Measurement Server Extension		106
Removing the Front Cover		106
Removing the Extension Bottom Cover		107
Removing the CO2 Scrubber		108
Removing the Pump		109
Refit Procedures for the Measurement Server Extension		109
Refitting the CO2 Scrubber		110
Refitting the Pump		110
Refitting the Extension Bottom Cover		110
Refitting the Front Cover		111
General Reassembly/Refitting Comments		111
Following Reassembly		111
6 Parts		113
MP60/MP70 Parts		114
Exchange Parts		114
Replacement Parts		115
Flexible Module Server Parts		117
Exchange and Replacement Parts		117
Multi-Measurement Server Parts		119
MMS Part Numbers - Front Bezel		120

6

MMS Exchange Part Numbers -
Software Revision A.05.xx and Lower	121
MMS Exchange Part Numbers -
Software Revision A.10.xx	122
Measurement Server Extension Parts (M3015A and M3016A)	124
Exchange Parts List	125
Plug-in Modules Part Numbers	126
Part Number Table	126
Exchange Modules, Table 1	126
Exchange Modules, Table 2	127
Plug-In Modules Replaceable Parts	128
Single-Width Plug-In Module	128
Double-Width Plug-In Module	129
Plug-in Module Replaceable Parts	129
Plug-In Module Language Specific Front Housing Kits (incl. Silicone Buttons, Frames & Bezels),
Table 1	129
Plug-In Module Language Specific Front Housing Kits (incl. Silicone Buttons, Frames & Bezels),
Table 2	130
Plug-In Module Specific Bezels	130
BIS Module Replaceable Parts	131
BIS Module Components	131
tcpO2/tcpCO2 Module Accessories	131
External Display Part Numbers	132
SpeedPoint Part Numbers	134
Remote Alarm Device Part Numbers	134
Remote Extension Device Part Numbers	135
	135
7 Installation Instructions	137
Unpacking the Equipment	137
Initial Inspection	138
Mechanical Inspection	138
Electrical Inspection	138
Claims For Damage and Repackaging	138
Claims for Damage	138
Repackaging for Shipment or Storage	138
Installing the Monitor (M8005A or M8007A)	138
Mounting Instructions	139
Assembling Mounts	139
Connections	139
Installing Interface Boards	141
Connection of Devices via the MIB/RS232 Interface	141
Installing Remote Devices	141
Mounting the Remote Display (M8031A)	141
Connections	142
Mounting the 17” Remote Display (M8033A)	142

7

Connections	142
Flexible Module Server and/or Multi-Measurement Server	143
Attaching the MMS to a Mount	143
Detaching the Measurement Server from a Mount	143
Positioning the Measurement Server on a Clamp Mount	143
Mounting the MMS Mount to the FMS (M8048A)	144
Mounting the Remote Extension Device to the FMS	145
Mounting the BIS Module to the FMS	145
Mounting the FMS	147
Connections	147
MSL Cable Termination	147
Remote Alarm Devices	150
Mounting	150
Connections	150
Remote Extension Device	151
Mounting	151
Connections	152
Cabling	152
PS/2 Keyboard/Mouse	153
Philips Clinical Network (Wired)	153
Philips Clinical Network (Wireless)	153
Nurse Call Relay	153
Connections	153
ECG Out Functionality	154
Connections	154
Configuration Tasks	154
Setting Altitude and Line Frequency	155
Configuring the Equipment Label	155
8 Site Preparation	157
Introduction	157
Site Planning	157
Roles & Responsibilities	157
Site Preparation Responsibilities	157
Procedures for Local Staff	158
Procedures for Philips Personnel	160
Monitor M8005A and M8007A Site Requirements	160
Space Requirements	160
Environmental Requirements	160
Temperature	160
Humidity	161
Altitude	161
Electrical and Safety Requirements (Customer or Philips)	161
Safety Requirements	161
Electrical Requirements	161

8

Remote Device Site Requirements		161
Connecting Non-Medical Devices		162
Multi-Measurement Server M3001A or Flexible Module Server M8048A		163
Space Requirements Multi-Measurement Server M3001A		163
Space Requirements Flexible Module Server M8048A		163
Environmental Requirements Multi-Measurement Server M3001A		163
Environmental Requirements Flexible Module Server M8048A		163
Cabling Options and Conduit Size Requirements		164
Mounting		164
Remote Displays (M8031A)		165
Space Requirements		165
Environmental Requirements		165
Electrical and Safety Requirements		165
Remote Displays - M8033A		166
Space Requirements		166
Environmental Requirements		166
Electrical and Safety Requirements		166
Cabling Options and Conduit Size Requirements		166
Touch Cable		167
Remote Alarm Devices		167
Space Requirements		167
Mounting		167
Cabling Options and Conduit Size Requirements		167
Remote Extension Device		168
Space Requirements		168
Mounting		168
Cabling Options and Conduit Size Requirements		168
Input Devices		169
Local Printer		169
Philips Medical LAN		169
MIB Interface		170
Nurse Call Relay Interface		171
ECG Out Interface		171
9 Anesthetic Gas Module		173
Introduction		173
Description		173
Product Structure		173
Physical Specifications		173
Environmental Specifications		174
Performance Specifications		174
CO2 Measurement		175
AWRR derived from CO2 Waveform		175
N2O Measurement		175
O2 Measurement		175
Anesthetic Agent Measurement		175

9

Alarm Ranges	176
Alarm Delay	176
Apnea Alarm	176
INOP Alarms	176
General Measurement Principles	177
Theory of Operation	177
Main PC Board	178
Power Supply	179
Pneumatic System	179
Pump	180
Watertrap	180
Sample Flow Through the Pneumatic Path	181
Agent Identification Assembly	181
Measurement Principle	182
O2 Sensor	182
Specifications	182
Measurement Principle	182
Infrared Measurement Assembly	183
Installation and Patient Safety	184
Physical Installation	184
Environment	185
Label Sheet	185
Making Connections to the AGM	185
Sample Gas Connections to the Gas Exhaust	186
Returning the Gas Sample	186
Setting Up the Gas Return	187
Removing the Gas Sample	188
Setup and Configuration Procedures	188
Altitude Configuration	188
Connect Sample Input Tubing	188
Preventive Maintenance (PM) Tasks	188
Post-Installation Checks	189
Safety Requirements Compliance and Considerations	189
Explanation of Symbols Used	189
Power Supply Requirements	190
Grounding the System	190
Equipotential Grounding	191
Combining Equipment	191
Checking and Calibrating the Anesthetic Gas Module	191
Access Service Functions of the M1026A Anesthetic Gas Module	191
When and how to check the Philips M1026A Anesthetic Gas Module	193
Equipment required for checking	193
Checks and adjustments	194
Performance Leakage Check	194
Performance Diagnostic Check	195
Performance Flowrate Check	195

10

Total Flowrate Check and Adjustment in Purge Mode	195
Measurement Path Flowrate Check and Adjustment	196
Total Flowrate Check in Normal Mode	198
Zero Calibration	198
Barometric Pressure Check and Calibration	199
Span Calibration Check	200
Disposal of Empty Calibration Gas Cylinder	202
Maintaining the Anesthetic Gas Module	203
Preventive Maintenance (PM) Tasks	203
Cleaning	203
Replace PM Parts	204
Internal Nafion Tubing with Bacterial Filters and manifold Seals	204
Room-Air Filter	205
Pump Filter	206
Performance Checks	207
Other factors to maximize uptime or reduce cost of ownership:	207
Troubleshooting the Anesthetic Gas Module	207
Compatibility Criteria for the AGM and the IntelliVue Monitors	208
Flow Charts for Communication and Measurement Type Problems	208
Hardware Related Troubleshooting Strategy	213
INOPs	214
Calibration Checks	216
Calibration Checks Troubleshooting Table	217
Diagnostic Checks	218
Problem Solving Hierarchy	219
Pneumatic System Diagnostic Checks	220
O2 Assembly Diagnostic Checks	220
Optical Path Disgnostic Checks	223
IR Measurement Assembly Diagnostic Checks	224
Agent ID Assmebly Diagnostic Checks	225
Power Supply Diagnostic Checks	226
Operating Temperature Diagnostic Checks	227
Test Points, Connectors and Jumpers	227
Test Points	227
Connectors	228
Jumpers	228
Repairing the Anesthetic Gas Module	230
Introduction	230
The Top Cover	232
Removal	232
Replacement	232
Lifting the IR Measurement Mounting Bracket	234
Removal	235
Replacement	235
Infrared Measurement Assembly Head	237

11

Transferring NVRAM Data to a Replacement Head	237
Sample Cell	241
Removal	241
Replacement	241
Solenoid Valve #1	245
Removal	245
Replacement	245
Power Supply Unit	247
Removal	247
Replacement	247
Main PC Board	248
Removal	248
Replacement	249
O2 Sensor	250
Removal	250
Replacement	251
Agent Identification Head	253
Removal	253
Replacement	254
Pump	255
Removal	255
Replacement	255
Fan	256
Removal	256
Replacement	256
Solenoid Valve #2	258
Removal	258
Replacement	258
Top Cover PC Board	259
Removal	259
Replacement	259
Watertrap Manifold and Protector	261
Removal	261
Replacement	261
Power Fuses	262
Removal	262
Replacement	262
Test and Inspection Matrix	262
When to Perform Test Blocks	266
Safety Test Appendix	267
Parts List	269
Calibration Equipment	274

12

1

Introduction

This Service Guide contains technical details for the IntelliVue MP60 and MP70 Patient Monitor, the MultiMeasurement 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

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
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, 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.

Warnings and Cautions

In this guide:

•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.

14

2

Theory of Operation

Integrated Monitor Theory of Operation

The IntelliVue Patient Monitor:

•displays real-time data

•controls 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:

15

2 Theory of Operation

Integrated 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

16

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:

17

2 Theory of Operation

Integrated Monitor Theory of Operation

		|| I/F To Local Printer
Power Supply	I/F
		PS/2 To SpeedPoint
LCD	Boards	MIB To AGM
Assembly	Main Board
LCD
Adapter	MSL
	I/F
	Video I/F
	Board To Ext. Display	ECG Out

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)

18

Integrated Monitor Theory of Operation

2 Theory of Operation

Building Blocks:

			|| I/F To Local Printer
Power Supply		I/F
			PS/2 To External input devices
LCD	Touch	Boards	MIB To AGM
Assembly	Panel	Main Board

LCD Touch

Adapter Controller

MSL

I/F

Video I/F

Board To Ext. Display

Optional Hardware

A measurement server mount and /or an integrated module slot can be ordered optionally. If the monitor is ordered with the wireless LAN option an external wireless transmitter is required. For further details regarding the wireless network please refer to the M3185A Philips Clinical Network documentation.

19

2 Theory of Operation

Integrated Monitor Theory of Operation

Measurement Server

Mount

Integrated

Module Slot

Compatible Devices

Figure 1 M8048A Flexible Module Server (FMS)

20

Integrated Monitor Theory of Operation

2 Theory of Operation

Figure 2 M3001A Multi-Measurement Server (MMS)

Power Supply

AC/DC	Isolating DC/DC	56 V
	Converter

48V /120W

Backlight DC/DC Converter

DC/DC DC/DC

DC/DC DC/DC

DC Bus						)
			DC/DC
Integrated Module Rack

DC/DC Converter

		FMS		5 V,					Front End
			60V						Modules
		MMS, MMS-EXT
		12 V
								Backlight
		3.3 V							CPU
		5 V
		10 V AC
									I/F boards
)
		12 Vunreg						HIF, LED's,
									wireless
		5 V
		60 V						Front End
								Modules

Figure 3 Power Supply Architecture

21

2 Theory of Operation

Integrated Monitor Theory of Operation

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 AC. 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.

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.

Flexible Module Server

IntelliVue Patient Monitor

Multi-Measurement Server

CPU

Video

CPU

CPU

Bank of I/Os

Bank of I/Os

Bank of I/Os

Measurement

Modules

Interfaces

Acquisition

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.

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 wired or wireless)

22

Integrated Monitor Theory of Operation

2 Theory of Operation

•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.

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		Data		Applications
Acquisition		Provider
		Service

	Persistent	Data
	Data
		Output
	Storage

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

23

2 Theory of Operation

Integrated Monitor Theory of Operation

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.

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 I/O boards and automatically connects them with the associated (interface driver) application. For some multipurpose 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.

24

Integrated Monitor Theory of Operation

2 Theory of Operation

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:

•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 timesynchronized 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	MDSE
Internal	Internal
LAN	LAN

25

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 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 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.

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	Philips Clinical		Video Out	Visual	Audio	Input Devices		ECG-Out
	Network			Indicators	Indicators	(including PS/2)		Marker-In
			Color LCD	LEDs	Loudspeaker	Touch	Trim Knob
			Display
	LAN			Interfaces				ECG-Out
								Marker-In
	MDSE			Interface Managers
				Record	Alarm	Trend	HiRes	ADT
		Applications			Reports	Calc Param	Events
	System Services
	Real Time Operating System
	MDSE							RS-422
	LAN
	LAN	RS-422		M3015/16A				Flexible
				Measurement Server		LAN	RS-422	Module
	M3001A Multi-			Extension				Server
				CO2, Press/Temp
	Measurement Server
	12-lead ECG/Resp, NBP, SpO2,

Press/Temp

M1006B		M1012A		M1018A		M1029A		M1032A		M1116B
Press		C.O.		tcPO2/CO2		Temp		VueLink		Recorder

Plug-In Modules

Figure 4 IntelliVue Patient Monitoring System Functional Block Diagram

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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 non-
	volatile 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 Report
	•	Test Report
	• 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.

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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,
	SpO2 or tcpO2, and Respiration physiological data. The
	OxyCRG is specialized for neonatal applications, allowing the
	opeartor to identify sudden drops in Heart Rate (Bradycardia)
	and SpO2 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 Multi-
	Measurement 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.

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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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