Spacelabs Healthcare Lifecard CF Bedienungsanleitung

Lifecard CF Service Manual

and

Lifecard 12

Firmware revision 7

Lifecard CF

18-0583 Rev. C

Service Manual

218-0583 Rev.C

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Lifecard CF Service Manual

Contents Page

1. PRODUCT OVERVIEW 7

1.1 INTRODUCTION 7

1.2 SpeciÞcation 9

1.2.1 Standard Recording Mode – ECG Inputs 9

1.2.2 Standard Recording Mode - Pacemaker Pulse Detection 10

1.2.3 Standard Recording Mode - Data Storage 10

1.2.4 User Interface 10

1.2.5 Power Requirements 11

1.2.6 Extended Recording Mode 11

1.2.7 Additional SpeciÞcations in 12-Lead Mode 12

1.2.8 Physical and Environmental 12

1.2.9 Electro-Magnetic Compatibility 13

2. SAFETY AND REGULATORY 15

2.1 Intended Use of Equipment 15

2.2 Safety ClassiÞcation 15

2.5 Explanation of Markings 17

3. LCF BUILT-IN TESTS 21

3.1 Primary Built-in Tests 21

3.2 Second Level Built-in Tests 21

3.3 Third Level Built-in Tests 21

3.4 User Level Tests 22

3.5 Fault Protection While Recording 22

3.6 Lifecard CF Menu Options 23

3.6.1 Main Menu Options 23

3.6.2 Setup Menu 25

3.7 Lifecard CF Sounds 28

3.8 Error and Warnings Displays 29

3.9 Decontamination 32

3.10 Patient Cable 33

3.11 Battery 34

3.12 Battery Check 34

3.13 Checking the Hardware & Software Revision 34

3.14 Compact Flashcard 35

418-0583 Rev.C

4. Test Procedure 37

4.1 Checking the Patient Cable 37

4.2 LC12 Varios Yoke Assembly 37

4.3 Lifecard CF Check-out 39

5. Spares & Part Numbers 41

6. Assembly Views 43

6.1 Front Assembly - Front View - Complete 43

6.2 Front Assembly - Rear View 44

6.3 Intermediate Moulding 45

6.4 Circuit Board 46

6.5 Patient Cable Mounting with Clip 48

6.6 Short Patient Cable 49

6.7 Varios with 46-1123 Cable 46-1152 50

6.8 Varios Lead Parts 51

Lifecard CF Service Manual

1 Harforde Court, John Tate Road, Hertford. SG13 7NW

618-0583 Rev.C

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Lifecard CF Service Manual

1. PRODUCT OVERVIEW

1.1 Introduction

The Lifecard CF is a compact Holter Ambulatory ECG Recorder

utilising a digital storage technique to store the ECG recording onto

a Compact Flash (CF) card. The Lifecard CF provides continuous

recording of 2 or 3 leads of ECG for up to 48 hours in standard mode

and up to 7 days in extended mode.

The Lifecard 12 option provides continuous recording of 12 leads of

ECG for a period of 24 hours. The recorder has a built in display for

you to monitor the ECG and pacing detection during hook-up. This

enables you to verify the ECG quality before starting the recording.

Menu options are selected using the 2 buttons on the front of the

recorder unit.

The Lifecard CF requires one AAA battery. The patient cables for the

Lifecard CF are designed to prevent accidental disconnection from the

recorder by the patient.

The Patient Event button on the front of the recorder unit enables the

patient to indicate symptomatic episodes in the recording for correla-

tion with the patient diary. Pacemaker pulse detection may be enabled

and disabled by the physician or cardiac technician. Recordings may

be analysed using a Spacelabs Healthcare PathÞnder, Impresario, or

Lifescreen Holter analysis system, if they have compatible hardware

and software. (Lifescreen is incompatible with 12-lead recordings.)

The Lifecard CF comprises two sections, the ‘Recorder Unit’ and the

‘Patient Cable Unit’.

818-0583 Rev.C

LIFECARD CF RECORDER UNIT

Recorder Unit

Lifecard CF

Display

Yellow Button

Menu Navigation

and

Patient Event

Microphone

Green Button

Selection

and

Patient Event

Loudspeaker

Patient Cable Unit

Patient Cable

Electrode Color

Code label

Belt Clip

(long cables only)

Slot for Neck

Lanyard

Attachment

Lifecard CF Service Manual

Patient Cable

Varios Active Yoke

1.2 Speciﬁcation

1.2.1 Standard Recording Mode – ECG Inputs

Channels 3, type BF applied part patient isolation

types 2 or 3 channel 3 electrode, 2

4 electrode, 3 channel 6 electrode with

detachable leadwires.

Input impedance > 5MȍOhms

Input DC offset ± 300 mV, with saturation

recovery circuit (3 seconds max)

CMRR > 60 dB at 10Hz, > 80 dB at 50 Hz and

above, 2 Vpp signal

Dynamic range 10 mV

Resolution 2.5ȝV

10 18-0583 Rev.C

Calibration ± 5%

Bandwidth 0.05 - 40 Hz (-3 dB)

Sampling rate 1024 samples per second per channel

Noise ﬁlter Linear phase Þlter effective from 60Hz to

> 1MHz, 128 samples per second out

put rate

1.2.2 Standard Recording Mode - Pacemaker Pulse

Detection

Sensitivity 7 mV nominal, channels 1 and 2 only

Noise rejection > 50 mVpp for sinusoids up to 200 Hz

CMRR 2 V common mode spikes are rejected

Refractory period 40 ms

1.2.3 Standard Recording Mode - Data Storage

Media type Removable card, CompactFlash Association

standard (Type 1)

Data types Full disclosure ECG, with pacing and patient

event markers. Recording Time and Date.

Patient name and record number

(PathÞnder systems), Encrypted patient record

Þle (CardioNavigator). 8 second voice recording.

Recorder serial number

Capacity req 15 Mbytes per channel per 24 hours eg.

a 48 hour three channel recording occupies

90 Mbytes

1.2.4 User Interface

Type Text menus with audio cues and keys for up, down

and select

Languages English, German, French, Italian, Spanish, Danish

and Polish languages also Hebrew patient ID support

Clock Clock and calendar (to 2098), selectable 12/24 hour

and US/European date formats. 13mm digit height for

patient use

Andere Handbücher für Lifecard CF

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