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*

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	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
CO2 Gas Measurement Calibration Check	45
Calibration Verification	46
Reset Time Counters	46
CO2Pump / CO2 Scrubber Replacement	47
Tests	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
Testing	157

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
Testing	168

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

Test Procedure268

Action if outside specification269

Disassembly270

Parts List272

B IntelliVue Product Structure

273

Upgrade Options274

12

1

Introduction

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

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:

•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

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

2

Theory 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.

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:
		Ba ttery	Rack	4 Modules
		Boa rd	Board		Dual MIB/ RS232 Interface
Power Supply				I/O	Parallel Printer Interface
					Flexible Nurse Call Relay I/F
Backlig	Assembly	Main Board		Boa rd Dual PS2 Interface
				S ystem	LAN (wireless)
	LCD				Remote Device Interface
ht			Interface		LAN (wired)
				Boa rd	Bas. Alarm Relays
.Inv
					Slave Video out
Boa				MSL	Docking interface
					MMS CPU
				I/F
rd
	P a nel Ada pter
			ECG Out
	F lex

IntelliVue MP50

The MP50 monitor:

•integrates the display and processing unit into a single package

•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

Building Blocks:

Rack

Battery

Boa rd

Board

Power Supply

LCD

Touch

Main Board

Assembly

Panel

htckligBa Board.Inv

Touch

Controller

ECG Out

P a nel Ada pter

F lex

2 Theory of Operation

4 Modules

Dual MIB/ RS232 Interface Parallel Printer Interface

I/O Flexible Nurse Call Relay I/F Boa rd Dual PS2 Interface

Remote Device Interface

S ystem				LAN (wireless)
Interface				LAN (wired)
Boa rd				Bas. Alarm Relays
				Slave Video out
MSL				Docking interface
			MMS CPU
I/F

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.

MMSMMServerMount Mount

4-S lot Ra ck

Ba ttery

Compa rtment

	P owersupply	P owerplug
	Heatsink

Figure 1 MP40/50 Rear

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

Figure 3 M8045A Docking Station

22

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 SpO2 Module

•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

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.

CPU Boards

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

Bank of I/Os

Interfaces

CPU

Bank of I/Os

Measurement

Acquisition

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:

•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		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 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

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:

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

28

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).

MDSE Internal LAN

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.

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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