Philips IntelliVue MP20, IntelliVue 30 User manual

IntelliVue MP20/30

Service Guide

IntelliVue Patient Monitor

MP20/MP20Junior/MP30

Patient Monitoring

Part Number M8001-9301F 453564112561

*M8001-9301F*

		Contents
	1 Introduction	9
Who Should Use This Guide		9
How to Use This Guide		9
Abbreviations		10
Responsibility of the Manufacturer		10
Passwords		11
Warnings and Cautions		11
	2 Theory of Operation	13
Monitor Theory of Operation		13
	System Boundaries	14
	Hardware Building Blocks	15
	Data Flow	21
	How does the Support Tool Work with the Monitor	24
	Monitor Software Block Diagram	25
	Block Diagram Legend	26
	3 Testing and Maintenance	33
Introduction		33
Terminology and Definitions		34
Recommended Frequency		34
When to Perform Tests		35
Testing Sequence		39
Visual Inspection		40
	Before Each Use	40
	After Each Service, Maintenance or Repair Event	40
	Power On Test	40
Safety Tests		41
	Warnings, Cautions, and Safety Precautions	42
	Safety Test Procedures	43
System Test		51
	What is a Medical Electrical System?	51
	General Requirements for a System	52
	System Example	52
	System Installation Requirements	54
	Required Protective Measures at System Installation	55
	System Test Procedure	65
Preventive Maintenance Procedures		66
	Noninvasive Blood Pressure Measurement Calibration	66
	Microstream CO2 Calibration	66
Performance Assurance Tests		66

3

Basic Performance Assurance Test	67
Full Performance Assurance Test	67
ECG/Resp Performance Test	67
ECG Sync Performance Test	68
SpO2 Performance Test	68
NBP PerformanceTest	69
Invasive Pressure Performance Test	71
Temperature Performance Test	72
M3014A Capnography Extension Performance Tests	72
Microstream CO2 Performance Test	75
Nurse Call Relay Performance Test	80
Power Loss Alarm Buzzer Performance Test (only if Multi-Port Nurse Call Connector Board is installed)	82
Docking Station Performance Test	82
IIT Communication Test	83
IntelliVue 802.11 Bedside Adapter Communication Test	83
Reporting of Test Results	85
Carrying Out and Reporting Tests	85
Evaluation of Test Results	88
Other Regular Tests	89
Touchscreen Calibration	89
Disabling/Enabling Touch Operation	90
Printer Test Report	91
Battery Handling, Maintenance and Good Practices	91
About the Battery	92
Checking the Battery Status	93
Battery Status on the Main Screen	94
Battery Status Window	97
Conditioning a Battery	98
Conditioning Batteries	99
After Installation, Testing or Repair	100

	4 Troubleshooting	101
Introduction		101
How To Use This Section		101
Who Should Perform Repairs		101
Replacement Level Supported		102
Software Revision Check		102
Obtaining Replacement Parts		102
Troubleshooting Guide		102
	Checks for Obvious Problems	103
	Checks Before Opening the Instrument	103
	Troubleshooting Tables	105
	Status Log	134
	List of Error Codes	135
	Troubleshooting with the Support Tool	136
4

Troubleshooting the Individual Measurements or Applications

136

	5 Repair and Disassembly		137
Tools required			137
How to find the Correct Procedure			138
Removing Directly Accessible Parts			139
1.1		Removing the Handle	140
1.2		Removing the Measurement Server Holder	140
1.3		Removing the I/O Boards and Interface Board	142
1.4		Removing the Recorder	143
1.5		Removing the Navigation Point Knob	143
1.6		Removing the Quick Release Mount and Knob	144
1.7		Removing the Fix Mount	144
2.0 Opening the Front of the Monitor			146
2.1		Removing the Backlight Tubes	147
2.2		Removing the Backlight Inverter Board	148
2.3		Removing Power On LED board and Silicon Pad	149
2.4		Removing the HIF Board, Silicon Pad and Spacer	150
2.5		Removing the Flex Adapter Cable	151
2.6		Removing the Battery Board	152
2.7		Removing Recorder Board Assembly	153
2.8		Removing the Loudspeaker	154
2.9		Removing the Branding Cover	155
3.0		Separating the Front and Back Half of the Monitor	155
3.1		Removing the LCD Flat Panel Display, Touch Panel and Front Housing	156
3.2		Removing the Main Board	157
3.3		Removing the MSL Assembly	159
3.4		Removing the Power Supply	159
3.5		Removing the Frame Housing and Serial Number Plate	160
Multi-Measurement Module (MMS) Disassembly			160
	Tools required		160
	Removing the Front Cover		161
	Removing the Mounting Pin		161
	Removing the Top Cover		162
	Removing the DC/DC Board		162
	Removing the MSL Flex Assembly		163
	Reassembling the MSL Flex Assembly		164
	Removing the NBP pump		165
	Refitting the new NBP Pump		166
	Refitting the DC/DC board		167
	Refitting the Cover		168
	Refitting the Front Cover		169
	Final Inspection		169
MMS Extensions - Exchanging the Top Cover, MSL Flex Cable and the Dual Link Bar			170
	Exchange Procedures		170
Disassembly Procedures for the M3015A MMS Extension (HW Rev. A)			181

5

Removing the Front Cover	181
Refit Procedures for the MMS Extension	185
Smart Battery Charger LG1480 (M8043A)	186
Cleaning the Air Filter Mats	187
Replacing the Fan	187
IntelliVue Instrument Telemetry (IIT)	189
Docking Station	190
Exchanging the Main Board	190
Exchanging the Flex Cable	192

	6 Parts	197
MP20/MP30 Parts		198
Multi-Measurement Module (MMS) Parts		203
	MMS Part Number Overview and Identification	203
	MMS Firmware Overview	205
	MMS Part Numbers - Front Bezel for M3001 #A01 & #A03	206
	MMS Part Numbers - Front Bezel for M3001 #A02	208
	MMS Part Numbers - Top Cover and MSL Assembly	209
	MMS Exchange Part Numbers	210
	MMS Part Numbers - Label Kits	212
	MMS Part Numbers - NBP Assembly	213
MMS Extension Parts (M3012A, M3014A, M3015A and M3016A)		213
	MMS Extension Part Numbers - Release Mechanisms	213
	MMS Extension Part Numbers - Top Cover, Flex Cable and Link Bar	214
	MMS Extension Part Numbers - Front Bezels	214
	Exchange Parts List	221
IntelliVue X2 Part Numbers		223
	BISx Solution Replacable Parts	224
Smart Battery Charger Part Numbers		224
IntelliVue Instrument Telemetry Part Numbers		225
IntelliVue 802.11 Bedside Adapter Part Numbers		226
Docking Station Part Numbers		226
External Display Part Numbers		227
Remote Alarm Device Part Numbers		229
Remote Extension Device Part Numbers		230

	7 Installation Instructions	231
Installation Checklist		231
Unpacking the Equipment		232
Initial Inspection		232
	Mechanical Inspection	232
	Electrical Inspection	232
	Claims For Damage and Repackaging	233
	Mounting Instructions	233
Connecting the Monitor to AC Mains		235

6

Connections	236
Installing Interface Boards	237
Connection of Devices via the MIB/RS232 Interface	240
Connection of USB Devices	240
Installing the Docking Station	244
Installing Remote Devices	244
Mounting the 15” Remote Display (M8031A)	244
Mounting the 15” Remote Display (M8031B)	245
Mounting the 17” Remote Display (M8033A/B/C)	245
Multi-Measurement Module	247
PS/2 Keyboard/Mouse	256
Philips Clinical Network (Wired)	256
Philips Clinical Network (Wireless)	256
Nurse Call Relay	257
Connections	257
ECG Out Functionality	257
Connections	257
Configuration Tasks	258
Checking Country-Specific Default Settings	258
Setting Altitude, Line Frequency, ECG Cable Colors and Height & Weight Units	259
Setting Altitude and Line Frequency	259
Configuring the Equipment Label	259
Configuring the printer	260
Handing Over the Monitor	260

	8 Site Preparation	261
Introduction		261
	Site Planning	261
	Roles & Responsibilities	262
Monitor M8001A and M8002A Site Requirements		264
	Space Requirements	264
	Environmental Requirements	264
	Electrical and Safety Requirements (Customer or Philips)	265
Remote Device Site Requirements		266
	Connecting Non-Medical Devices	267
	Multi-Measurement Module (MMS) M3001A and IntelliVue X2 M3002A	267
	Remote Displays (M8031A)	270
	Remote Displays (M8031B)	271
	Remote Displays - M8033A	272
	Remote Displays - M8033B	273
	Remote Displays - M8033C	274
	Remote Alarm Devices	276
	Remote Extension Device	277
	Local Printer	278
Philips Medical LAN		279

7

RS232/MIB/LAN Interface		279
Nurse Call Relay Interface		280
ECG Out Interface		281
	9 Gas Analyzers	283
	10 Index	285

8

1

Introduction

This Service Guide contains technical details for the IntelliVue MP20, MP20 Junior and MP30 Patient Monitor, the Multi-Measurement Module (MMS), the IntelliVue X2, 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.

9

1 Introduction

Abbreviations

Abbreviations

Abbreviations used throughout this guide are:

Name	Abbreviation
IntelliVue MP20/MP30 Patient Monitor	the monitor
Multi-Measurement Module	MMS
Measurement Link	MSL
Medical Information Bus	MIB
Anesthetic Gas Module	AGM

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.

10

Passwords

1 Introduction

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.

11

2

Theory of Operation

Monitor Theory of Operation

The IntelliVue MP20/MP20Junior/MP30 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 slave display. These elements cooperate as one single integrated real-time measurement system.

NOTE

The following descriptions may vary depending on the monitor option purchased.

13

2 Theory of Operation

Monitor Theory of Operation

System Boundaries

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

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

14

Monitor Theory of Operation

2 Theory of Operation

Hardware Building Blocks

The following hardware building blocks make up the monitoring system:

IntelliVue MP20

The MP20 monitor:

-integrates the display and processing unit into a single package

-uses a 10.4” 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

-supports the MMS and MMS extensions.

Building Blocks:

15

2 Theory of Operation

Monitor Theory of Operation

IntelliVue MP30

The MP30 monitor:

-integrates the display and processing unit into a single package

-uses a 10.4” TFT XGA color display

-uses the Touchscreen and Philips Navigation Point as primary input devices. Computer devices such as mice, trackball, and keyboard can be added optionally.

-supports the MMS and MMS extensions

Building Blocks:

Optional Hardware

One slot is provided for one of three 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.

16

Monitor Theory of Operation

2 Theory of Operation

Compatible Devices

M8045A Docking Station

M3001A Multi-Measurement Module (MMS)

M3002A IntelliVue X2

17

2 Theory of Operation

Monitor Theory of Operation

M3012A, M3014A, M3015A, M3016A MMS Extensions

Power Supply

Power Supply Architecture

18

Monitor Theory of Operation

2 Theory of Operation

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 MMS 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 non-isolated 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.

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.

19

2 Theory of Operation

Monitor Theory of Operation

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:

-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

-USB

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

-BISx Interface

-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.

20

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.

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 convert 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 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

21

2 Theory of Operation

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 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 end-user 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, data import, data export).

22

Monitor Theory of Operation

2 Theory of Operation

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 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 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 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).

23

2 Theory of Operation

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 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.

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.

24

Monitor Theory of Operation

2 Theory of Operation

Monitor Software Block Diagram

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.

IntelliVue Patient Monitoring System Functional Block Diagram

25

2 Theory of Operation

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:
	They use a real-time clock component to track time. They synchronize to network
	time sources and verify the accuracy of the system time information. They are also
	responsible for managing persistent user configuration data for all Measurement
	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
	The Reports service generates report data which can be printed on a local or a
	central printer.

26

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. 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 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 operator to identify sudden drops in Heart Rate (Bradycardia) and SpO2
		(Desaturation), and supporting the operator in visualizing Apnea situations.

27

2 Theory of Operation	Monitor Theory of Operation
Functional Block	Description
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 Module. 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.
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 Rack 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.

28

Monitor Theory of Operation		2 Theory of Operation
Functional Block		Description
Display & Operator Interface		The Display and Operator Interface Manager performs the following tasks:
		- Screen presentation of real-time and stored physiological measurement data,
		alarm condition data and status information received from the MDSE
		interface manager, the Alarm service or other IntelliVue Patient Monitoring
		System modules
		- Screen presentation of operating controls (control windows)
		- Processing of operating control commands received from HIF Control
		interface. The module verifies and interprets the received commands and
		forwards them to other software modules of the IntelliVue Patient Monitoring
		System display unit, Measurement Servers or Flexible Module Rack
		- Sound generation (issues audible alarm signals and generates audible
		information signals, for example QRS and SpO2 tones, operator audible
		feedback)
Interfaces
LAN		The LAN interface implements the physical layer of IEEE 802.3. The LAN
		interface performs Manchester encoding/decoding, receive clock recovery, transmit
		pulse shaping, jabber, link integrity testing, reverse polarity detection/correction,
		electrical isolation, and ESD protection. Electronically separated interfaces are used
		for communication to the Measurement Servers or Flexible Module Rack and to
		the network.
Centronics		The Centronics interface implements the standard signaling method for
		bi-directional parallel peripheral devices according to IEEE 1284-I. The interface is
		used as a parallel interface to a standard printer with electrical isolation and ESD
		protection.
Display Controller		The Display Controller Interface consists of a video controller chip, video RAM
		and the controlling software. The Display Controller interface processes the high
		level display commands (character and graphic generation, wave drawing) and
		translates them into pixels, which are written into the video RAM where the video
		controller chip generates the video synchronization signals and the pixel stream for
		the Color LCD Display.
HIF Control		The HIF (Human Interface Control) interface scans the Human Interface devices
		for operator controls (Touch Screen, Speed Point, USB and PS/2 devices), formats
		the collected data and sends it to the display and Operating Interface.
ECG-Out Marker-In		The ECG Out/Marker In interface receives the ECG waveform directly from the
		ECG/Resp Arrhythmia ST-Segment physiological algorithm via an RS-422 serial
		interface and converts the digital ECG signal to an analog ECG signal. In
		addition, the ECG Out controller receives from a connected device the marker
		information and forwards this data to the ECG/Resp Arrhythmia ST-Segment
		physiological algorithm. The converted analog signal is used to synchronize a
		connected device to the patient’s ECG

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2 Theory of Operation	Monitor Theory of Operation
Functional Block	Description
RS-422	The serial link RS-422 interface communicates the ECG signal to the ECG
	Output/Marker In of the IntelliVue Patient Monitoring System display unit. The
	interface is a serial, differential, full-duplex link. The interface is ESD protected.
PS/2	The PS/2 interface supports the serial protocol of standard PS/2 devices (mouse).
	The PS/2 serial protocol is interpreted by the HIF Control interface.
Nurse Call	The Nurse Call board contains 2 connectors. A phone jack type connector and a
	multi-port connector. The phone jack type connector has a single close-on-alarm
	relay. The multi-port connector has three alarm relays which are configurable to be
	open or closed on alarm. In addition, this interface has an audible alert capability
	for loss of AC power.
MIB	The MIB interface allows full-duplex, short-haul asynchronous binary
	communication between the monitor and an arbitrary (medical/non-medical)
	device using an eight-pin RJ45 modular connector. Switching between MIB and
	RS232 protocol is possible.
Docking Interface	The docking interface provides necessary connections for docking an MP20/30 or
	MP40/50 monitor onto the docking station.
BISx Interface	The BISx interface allows the usage of Aspect’s BISx solution with an MP20/30
	monitor.
IIT Interface	The IIT interface allows operation of the
	MP2/X2/MP5/MP20/MP30/MP40/MP50 monitors with IntelliVue Instrument
	Telemetry.

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