Leica M620 F20 User manual

MEDICAL DIVISION
User Manual
10 714 371 - Version 00
Leica M620F20

Thank you for purchasing a Leica surgical microscope system.
In developing our systems, we have placed great emphasis
on simple, self-explanatory operation. Nevertheless, we
suggest studying this user manual in detail so that you know
and are able to utilize all the benefits of your Leica surgical
microscope in an optimum way.
For valuable information about Leica Microsystems products and
services and the address of your nearest Leica representative,
please visit our website,
www.leica-microsystems.com
Thank you for choosing our products. We hope that
you will enjoy the quality and performance of your new
Leica Microsystems surgical microscope.
Leica Microsystems (Schweiz) AG
Medical Division
Max Schmidheiny-Strasse 201
CH-9435 Heerbrugg
Phone: [phone]
Fax: [phone]
Leica M620 F20 / Ref. 10 714 371 / Version 00
II

Chapter overview
Introduction 3
Controls 5
Preparation Before Surgery 8
Use 18
Accessories 23
Safety Notes 31
Care and Maintenance 40
Disposal 44
What To Do If...? 45
Technical Data 47
Leica M620 F20 / Ref. 10 714 371 / Version 00 1

Contents
Page
Introduction
User manual............................................................................3
Product identification...........................................................3
Symbols in this user manual................................................3
Design and function ..............................................................4
Controls
Control unit .............................................................................5
Lamp housing .........................................................................5
Tilt head/focus unit ...............................................................5
Footswitch (standard configuration) ................................6
Stand........................................................................................6
Optics carrier .........................................................................7
Binocular tube, eyepiece,
second observer tubes.........................................................7
User interface of the control panel....................................7
Preparation Before Surgery
Changing accessories of the surgical microscope
and balancing the swing arm..............................................8
Installing binocular tube, eyepiece and objective..........8
Fitting adapters for accessories ......................................10
Adjusting the second-observer tube...............................10
Fitting documentation accessories.................................11
Selecting documentation accessories ...........................12
Adjusting the eyebase and eyepoint ...............................13
Adjusting the parfocality ...................................................13
Show/switch footswitch type ..........................................13
Reversing + and – directions of the
XY unit....................................................................................14
Transporting the surgical microscope ............................14
Positioning the surgical microscope at the
operating table.....................................................................15
Installing sterile components ...........................................16
Checking the function of the lamp ...................................16
Preparing the surgical microscope for use....................17
Use
Positioning the microscope...............................................18
Adjusting the focus .............................................................18
Adjusting the magnification ..............................................18
Adjusting the illumination..................................................19
Switching from main to spare illumination.....................19
Setting the illumination type and working distance ... 20
Operating the control panel ............................................. 20
Decomissioning................................................................... 22
Accessories
Components and accessories.......................................... 23
Video accessories for Leica M620 F20 .......................... 28
Load table............................................................................. 29
Page
Safety Notes
Intended use of instrument .............................................. 31
Information for the person responsible for the
instrument............................................................................ 31
User qualifications ............................................................. 31
Information for the user .................................................... 31
Manufacturer's declaration of electromagnetic
compatibility (EMC)............................................................ 33
Table 2 from EN 60601-1-2:2007....................................... 34
Table 4 from EN 60601-1-2:2007....................................... 35
Table 6 from EN 60601-1-2:2007....................................... 36
Dangers of use .................................................................... 37
Signage................................................................................. 39
Care and Maintenance
Care instructions................................................................ 40
Cleaning the control panel................................................ 40
Maintenance ....................................................................... 40
Care and Maintenance of the
Leica Footswitch ................................................................ 40
Changing the fuse................................................................41
Changing the bulb................................................................41
Function check.....................................................................41
Notes on reprocessing of resterilizable products....... 42
Instructions ......................................................................... 42
Maintenance ....................................................................... 43
Disposal
Disposal................................................................................ 44
What To Do If...?
General malfunctions ........................................................ 45
Microscope.......................................................................... 45
TV, photography.................................................................. 46
Specifications
Electrical data..................................................................... 47
Microscope.......................................................................... 47
Optical data.......................................................................... 47
Control unit ......................................................................... 47
Stand..................................................................................... 48
Ambient conditions ............................................................ 48
Standards fulfilled.............................................................. 48
Limitations of use ............................................................... 48
Configurations and Weights ............................................ 48
Dimensions .......................................................................... 49
Leica M620 F20 / Ref. 10 714 371 / Version 00
2

Introduction
User manual
This user manual contains important safety notes
as well as information on using the instrument
(see the chapter "Safety Notes").
Read the user manual carefully and thoroughly
before placing the product in operation.
Product identification
The model code and serial number of your product are
provided on the nameplate found on the underside of the
horizontal arm. Copy this information to the line below so that
it is handy in case you have questions for our representatives
or service locations.
Type: Serial No.:
Symbols in this user manual
The symbols used in this user manual
have the following meanings:
Warning
Indicates an imminently hazardous situation or
improper use that could result in serious personal
injuries or death.
Caution
Indicates a potentially hazardous situation or
improper use which, if not avoided, may result
in minor or moderate injury and/or appreciable
material, financial and environmental damage.
Information about use that helps the user to employ
the product in a technically correct and efficient way.
 Action required; this symbol indicates that you need
to perform a specific action or series of actions.
Leica M620 F20 / Ref. 10 714 371 / Version 00 3

Introduction
Design and function
9
1
2
3
4
5
6
7
8
10
1 Swing arm
2 XY-unit (optional)
3 Tilt head
4 Focus unit
5 Binocular tube
6 Eyepieces
7 Optics carrier
8 Lens
9 Control unit
10 Base
Leica M620 F20 / Ref. 10 714 371 / Version 00
4

Controls
Control unit
12
1 Main switch
2 Control Panel




3 Socket for potential equalization for connecting the
Leica M620 F20 to a potential equalization device.
This is part of the customer's building installation.
Observe the requirements of EN 60601-1 (§ 8.6.7).
4 Power cable strain relief device
5 Power socket
6 Connection for footswitch
Here, only foot and hand switches delivered by
Leica Microsystems (Schweiz) AG, Medical Division
may be connected.
Lamp housing
1
2
1 Lamp replacement cover
2 Slide button for quick-change lamp mount
Tilt head/focus unit
1
23
Tilt head
1 Tilt head fine adjustment
Focus unit
2 Reset button, XY-unit
3 Reset button, focus
Leica M620 F20 / Ref. 10 714 371 / Version 00 5

Footswitch (standard configuration)
3
2
7
+
-
4
1
6
5
1 XY adjustment
2 Microscope illumination darker
3 No Function
4 Microscope illumination on/off
5 Zoom up/down
6 Focus bottom and top
7 Microscope illumination brighter
See page 22 for alternative footswitches and free
programming of footswitches.
Stand
1
2
1
1
4
5
3
1 Articulation brakes
2 Rotary knob for balancing
3 Retaining pin
4 Footbrake release lever
5 Footbrake
Controls
Leica M620 F20 / Ref. 10 714 371 / Version 00
6

Optics carrier
3
1
2
1 Insert for filter (UV protection filter GG475, protection
filter 5×)
2 Jalousie blind rotary knob for fade out/fade in 6°
illumination
3 Handles
Binocular tube, eyepiece,
second observer tubes
1
+5 –5 –5+5
2
2
1 Drive knob for interpupillary distance adjustment
2 Diopter adjustment
3 Knurled ring for image correction
User interface of the control panel
For information on operating the control panel,
see page 20.
"Main" menu
1 2
3 4 5
678
9
1 Illumination lighter/darker
2 Zoom up/down
3 Defective lamp warning
4 XY reversal active
5 "Speed" menu
6 Reset All
7 Reset XY
8 Reset focus
9 User selection 1-4
"Speed" menu
1 2 3
4
5
1 Zoom speed setting
2 Focus speed setting
3 XY-speed setting
4 Back to the "Main" menu
5 Switch to the service area (password-protected)
Controls
Leica M620 F20 / Ref. 10 714 371 / Version 00 7

Changing accessories of the surgical
microscope and balancing the swing arm
Warning
Risk of injury from downward movement of surgical
microscope!
 Never change the accessories or attempt to
rebalance the microscope while it is above the field
of operation.
 After every modification, balance the swing arm.
2
2
1
Locking the swing arm
 Position the swing arm approximately horizontally.
 Press retaining pin (2) and move the swing arm up and
down until the retaining pin snaps into place.
The swing arm is now locked.
Cleaning the optical accessories
 Inspect the cleanliness of the eyepieces and objectives as
well as any photo or TV adapters as appropriate.
 Remove dust and dirt.
Mounting accessories
 Outfit the microscope and all accessories for use.
3
–
+
Balancing the swing arm
 Hold the microscope firmly.
 Pull the retaining pin (2).
The swing arm is now released.
 See whether or not the microscope drifts.
Microscope drifts downwards:
 Turn the rotary knob (3) clockwise (+).
Microscope drifts upwards:
 Turn rotary knob (3) counter-clockwise.
Installing binocular tube, eyepiece and
objective
A range of options enables the surgical microscope to be
matched to the requirements of the task
at hand.
Installing the binocular tube
Warning
Risk of injury through falling binocular tube!
 Tighten the clamping screw securely.
1
 Tighten the clamping screw (1).
 Push the binocular tube into the dovetail ring.
 Tighten the clamping screw securely.
Preparation Before Surgery
Leica M620 F20 / Ref. 10 714 371 / Version 00
8

Fitting the eyepiece
 Set the eyepiece in place.
 Tighten the rotary ring (1).

Eyepieces
Eyepiece 8.33×, adjustable
Eyepiece 10×/21B, adjustable
Eyepiece 12.5×/17B, adjustable
Fitting the objective protection glass
 Screw the holder for the objective protection glass (2) into
the objective and position it such that the mark (3) faces
backwards.
 Position the objective protection glass (5) and turn it slightly
to the right.
The objective protection glass will snap into place and the
markings (3) and (4) will match.
The objective protection glass is not autoclavable.
23
4
5
Inserting additional filters
The Leica M620 F20 features two slots for additional filters.
Temperature-resistant 32 mm diameter filters may
be used. For further information, please contact your
Leica Microsystems representative.
 Remove cover (1) of the filter slots.
 Mount the filter in the filter holder with a tension ring.
1
 Insert the filter holder (2).
2
Preparation Before Surgery
Leica M620 F20 / Ref. 10 714 371 / Version 00 9

Fitting adapters for accessories
Installing the beam splitter/stereo adapter
 Loosen the clamping screw (1).
 Push the beam splitter/stereo adapter into the dovetail ring.
 Tighten the clamping screw.

Beam splitter with 50/50 % observation,
alternative: beam splitter with 70/30 % observation
Stereo adapter for accessories
For installing accessories with M600 interface (dovetail ring)
under beam splitter with Leica M500 interface (e.g. "Wild"
type laser filter).
Fitting the adapter
 Insert the adapter in the beam splitter.
 Tighten the rotary ring (1).
1
Adjusting the second-observer tube
Install stereo attachment/second observer tube
 Insert the stereo attachment/second observer tube into the
beam splitter.
 Tighten the rotary ring (1).
1
Stereo attachment for second observer
The dual stereo attachment can be attached to the left or right
on the beam splitter and turned as required.
Adjusting the second observer tube
 Rotate the monocular second observer tube in the desired
direction.
 Adjust the diopter setting at the eyepiece.
 Correct the image with the knurled ring (2).
Adjusting the stereo attachment for second observer
 Turn the attachment for the second observer in the desired
direction.
 Align the binocular tube horizontally.
 Adjust the diopter setting at the eyepiece.
 Correct the image with the knurled ring (2).
2
Preparation Before Surgery
Leica M620 F20 / Ref. 10 714 371 / Version 00
10

Using the assistant's stereomicroscope
Warning
Risk of injury through falling surgical microscope!
 Check the mounting of the assistant's
stereomicroscope before every use.
The assistant's stereomicroscope can only be used
with the following objectives:
• WD=175 mm
• WD=200 mm
12
3
 Mount adapter with included screws (see manual of
assistant's stereomicroscope).
 Focus assistant's image with sterile-operable focus drive (2).
 Moving assistant's stereomicroscope to left/right:
 Remove sterile handles (3) with hub.
 Loosen clamping screw (1) and turn the assistant's
stereomicroscope.
 Tighten the clamping screw (1).
 Turn the hub and reattach sterile handles (3).
Fitting documentation accessories
Warning
Risk of injury from parts falling down!
 Complete all preparations and adjustments to the
optics carrier before the operation.
 Never rebalance or re-equip the optical components
and accessories with the instrument over the
operation area.
 Check that the optical components and accessories
fit well and are fastened securely before the
operation.
 Before changing equipment during an operation,
swivel the microscope away from the operation
area.
Focusing knob
Adjusting the magnification
Preparation Before Surgery
Leica M620 F20 / Ref. 10 714 371 / Version 00 11

Selecting documentation accessories
70 mm
1”
2/3”
1/2”
1/3”
1/4”
107 mm100 mm85 mm60 mm55 mm35 mm
Photo/TV
dual attachment
TV adapterTV adapterTV adapter Photo/TV
dual attachment
Zoom Video Adapter Zoom Video
Adapter
250 mm
Photo/TV dual attachment
35 mm
Digital
Photo camera
350 mm
Field of view
Monitor/image
Preparation Before Surgery
Leica M620 F20 / Ref. 10 714 371 / Version 00
12

Adjusting the eyebase and eyepoint
65 55
75
The interpupillary distance and preferred degree of contact
with the eyepieces vary from user to user.
Prepare the microscope for surgery using a user table.
Adjusting the eyebase
 Set the eyelenses of the eyepieces to "0" or select the
required diopter value.
 Set the magnification changer to step 10.
 Look into the eyepieces and adjust the tubes with the
setting wheel or by hand (in the case of binocular tubes
without a setting wheel) until a circular field of view is
visible.
Adjusting the parfocality
Adjusting the diopter settings
Adjust the diopter settings accurately for each eye separately;
only this method will ensure that the image will stay in focus
throughout the entire zoom range (parfocal).
1. Prepare the microscope
 Switch on the microscope at the control unit and place
a flat test object such as a piece of paper beneath the
objective.
 Set the maximum brightness.
 Set the minimum magnification.
 Shift the microscope until the test object is visible in the
center of the field of view and reasonably sharp.
Interpupillary distance scale
Setting wheel
Rotary ring for adjusting the
diopter settings
2. Focus on the test object
 Set the maximum magnification.
 Focus the microscope.
 Set the minimum magnification.
3. Adjusting the diopter settings
 Adjust the diopter setting for each eye in turn, until the
image is seen in sharp focus.
 Set the maximum magnification.
 Focus the microscope again.
 Set the minimum magnification.
 Inspect the diopter settings, readjusting them if necessary
so that both images are sharp.
4. Checking parfocality
 Zoom through the whole range, observing the test
object. The image sharpness must remain constant at all
magnifications. If it does not, then repeat points 2 to 4 of
this procedure.
Show/switch footswitch type
See page 22.
Preparation Before Surgery
Leica M620 F20 / Ref. 10 714 371 / Version 00 13

Reversing + and – directions of the
XY unit
The "XY-reverse" function must be assigned to the
footswitch (see page 22).
 Use the "XY-reverse" button (1) on the footswitch to reverse
the + and – directions of the XY unit to – and +.
The "XY-reversal enabled" symbol (2) on the control panel
lights up.
-Y
+Y
-X
+X
+Y
-Y
+X
-X
11
2
Transporting the surgical microscope
Warning
Risk of injury from:
• Uncontrolled lateral movement of the swing arm.
• Tilting of the stand.
• Feet in lightweight shoes could become trapped
beneath the casing of the base.
• Abrupt braking of the surgical microscope at a
threshold that cannot be crossed.
 For transportation, always move the
Leica M620 F20 surgical microscope into the
transport position.
 Never move the stand while the unit is extended.
 Never roll over cables lying on the floor.
 Always push the Leica M620 F20 surgical
microscope - never pull it.
Transport position
Locking the swing arm
 Position the swing arm approximately horizontally.
 Press in the retaining lever (1), rotate it horizontally and
move the swing arm up and down until the retaining lever
snaps into place.
The swing arm is now locked.
 Release the articulation brakes (2), fold the swing arm.
 Move the surgical microscope into transport position and
tighten the articulation brakes.
1
Preparation Before Surgery
Leica M620 F20 / Ref. 10 714 371 / Version 00
14

Transport the surgical microscope and secure it in its
installation location
 Pull the power plug from the socket and wrap the power
cable around the handle.
 Hook in the footswitch to the clip.
 Step on the footbrake release lever (4) to release the
footbrakes.
 Push the surgical microscope to its new location by the
handle (3).
 Lock the footbrakes at the installation location.
Caution
Surgical microscope can move without warning!
 Always secure the footbrakes when you are not
moving the system.
2
2
2
3
4
4
4
Positioning the surgical microscope at the
operating table
Caution
Danger of fatal electrical shock!
 The surgical microscope may be connected to a
grounded socket only.
 Carefully move the surgical microscope to the operating
table using the handle and position it for the forthcoming
operation.
 Tighten the footbrakes.
 Plug the power cable (3) into the socket and secure it with
cable ties (2).
 Connect the potential equalization to the socket (1) on the
control unit.
 Connect the footswitch to the socket (4) on the control unit.
1
34
2
Preparation Before Surgery
Leica M620 F20 / Ref. 10 714 371 / Version 00 15

1
1
1
2
 Adjust the tilt of the footswitch. Rotate the footrest in or out.
 Check that all accessories are correctly connected and
securely attached.
 Release the articulation brakes and set them to a light
resistance.
Make the joint easier to move:
 Release the articulation brake (1).
Make the joint more difficult to move:
 Tighten the articulation brake (1).
 Pull the retaining lever (2).
 Extend the swing arm.
 Check the weight setting on the swing arm by raising and
lowering the microscope and correct as necessary, see
page 8.
Caution
Risk of infection!
 Leave sufficient space around the stand to prevent
contact with non-sterile components.
Installing sterile components
Standard components:
• One handle, large, black (tilt head)
• 2 handles, transparent
• 2 drive knobs
The handles are steam and gas-sterilizable.
 Sterilize the handles and drive knobs.
 Attach the sterile drive knobs on the binocular tube and the
drive knob to block ambient illumination.
 Attach sterile handles to optics carrier and tilt head.
Checking the function of the lamp
 Switch on the microscope using the power switch.
The main lamp will light up.
 Move the slide button for the quick-change lamp mount (3)
to the other side.
The auxiliary lamp will light up.
 Move the slide button for the quick-change lamp back to the
main lamp.
The slide button for the quick-change lamp mount (3)
must be slid fully against its stop, otherwise the lamp
will not light.
3
Preparation Before Surgery
Leica M620 F20 / Ref. 10 714 371 / Version 00
16

Preparing the surgical microscope for use
 Switch on the power switch (2).
2
The XY unit will move to its middle position.
The LED (page 18, position 2) is lit when the mid position has
been reached.
The focus will travel to its home position (1/3 up, 2/3 down) at
maximum speed. The LED (page 18, position 3) is lit when
the focus reset position has been reached.
Basic setting:
When switching the Leica M620 F20 on with the power
switch, the zoom will travel to the same position it was in
when the instrument was turned off. The brightness of the
lamps and drive speeds remain at the programmed values
of the last user.
Preparation Before Surgery
Leica M620 F20 / Ref. 10 714 371 / Version 00 17

Positioning the microscope
Adjusting the mid position:
 Press the "Reset XY-unit" key (4).
The XY unit will move to its middle position.
LED (2) is lit when the mid position has been reached.
1
45
6
23
+
–
98
7
Coarse positioning
 Hold both handles (6) to position the microscope.
Fine positioning
 Actuate the XY unit via the footswitch (7).
 Adjust the travel speed of the XY unit on the control panel
(see page 21).
Tilt fine adjustment:
 Use the tilt head fine adjustment (1) to set the tilt of the
microscope precisely.
Auto reset:
The "auto reset" function can be deactivated on the
control panel in the service area.
 Hold both handles and move the microscope to its
uppermost position.
All drives will move to their reset positions and the illumination
will go out. When the microscope is returned to its working
position, the illumination will switch on at the configured
starting value.
Adjusting the focus
(in accordance with factory settings)
Basic setting:
 Press "reset focus" button (5).
The focus will travel to its home position (1/3 up, 2/3 down)
at maximum speed.
LED (3) is lit when the focus reset position has been reached.
Adjusting the focus:
 Press the programmed button (8) or (9) on the footswitch.
 Adjust the speed on the control panel (see page 21).
Adjusting the magnification
 Adjust the magnification on the control panel (see page 20).
Use
Leica M620 F20 / Ref. 10 714 371 / Version 00
18