M844 / Ref. 10 713 294 / Version 01 1
Contents
1 Introduction 3
1.1 About this user manual 3
1.2 Symbols in this user manual 3
2 Product identification 3
2.1 Optional product features 3
3 Safety notes 4
3.1 Intended use 4
3.2 Indication for Use 4
3.3 Contraindications 4
3.4 Directions for the person responsible for the
instrument 4
3.5 Directions for the operator of the instrument 5
3.6 Dangers of use 6
3.7 Signs and labels 10
4 Design 15
4.1 Leica M844 F40 15
4.2 Leica M844 F20 17
4.3 Leica M844 CT40 19
4.4 Leica M844 Optics carrier 21
5 Functions 22
5.1 Illumination 22
5.2 Balancing system 22
5.3 Electromagnetic brakes 22
6 Controls 23
6.1 Control unit 23
6.2 Leica M844 surgical microscopes 24
6.3 Footswitch and handles 25
7 Preparation before surgery 26
7.1 Transportation 26
7.2 Installing optical accessories 27
7.3 Setting the binocular tube 28
7.4 Adjusting the eyepiece 28
7.5 Adjusting optical accessories for LeicaM844 29
7.6 Installing documentation accessories 30
7.7 Selecting documentation accessories 31
7.8 Fitting optical accessories for Leica M844 32
7.9 Fitting the Leica Slit Illuminator 33
7.10 Wide-angle observation system (such as Oculus) 36
7.11 Stand settings (F40, CT40) 37
7.12 Stand settings (F20) 39
7.13 Positioning at the operating table 39
7.14 Attaching sterile controls and drape 40
7.15 Function check 41
8 Operation 42
8.1 Switching the microscope on 42
8.2 Positioning the microscope 43
8.3 Adjusting the microscope 44
8.4 Adjusting the magnification (zoom) 46
8.5 Transport position 47
8.6 Rest position 47
8.7 Shutting down the surgical microscope 47
9 Touch panel 47
9.1 Menu structure 47
9.2 Switching the microscope on 47
9.3 Editing the user list 49
9.4 Configuring users (User Settings menu) 49
9.5 StepCycle™ 52
9.6 The Maintenance menu 55
9.7 The "How to…" menu 56
9.8 The "Service" menu 56
10 Accessories 57
10.1 Devices and accessories manufactured by Leica 57
10.2 Devices and accessories of Leica and of 3rd party
manufacturers 60
10.3 Video accessories for M844 60
10.4 Drapes 60
11 Care and maintenance 61
11.1 Maintenance instructions 61
11.2 Cleaning the touch panel 61
11.3 Maintenance 61
11.4 Care and Maintenance of the Leica Foot switch 61
11.5 Changing fuses 62
11.6 Changing lamps 62
11.7 Notes on reprocessing of resterilizable products 63
12 Disposal 66
13 What to do if ...? 66
13.1 General 66
13.2 Microscope 66
13.3 Control unit 67
13.4 Error messages on the control unit 68
13.5 F40 stand 68
13.6 CT40 ceiling mount 68
13.7 F20 stand 68
13.8 Camera, video 69
14 Specifications 70
14.1 Microscope 70
14.2 Illumination 70
14.3 Accessories 70
14.4 Electrical data 71