M620 F20 User Manual Ver 01 Jan 2022

 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: +41 71 726 3333 Fax: +41 71 726 3334

II

Leica M620 F20 / Ref. 10 714 371 / Version 01

Chapter overview

1 Introduction

3

2 Product identification

3

3 Safety notes

4

4 Design

11

5 Functions

11

6 Controls

13

7 Preparation before surgery

16

8 Operation

26

9 Components and accessories

32

10 Care and maintenance

40

11 Disposal

44

12 What to do if ...?

44

13 Technical data

46

Leica M620 F20 / Ref. 10 714 371 / Version 01

1

Contents 1

Introduction 3 1.1 About this user manual/installation manual...3 1.2 Symbols in this user manual...3

8

Safety notes 4 3.1 Intended use of instrument...4 3.2 Indications 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...7 3.7 Signs and labels...9

Operation 26 8.1 Positioning the microscope...26 8.2 Adjusting the focus...27 8.3 Adjusting the magnification...27 8.4 Adjusting the illumination...27 8.5 Switching from main to spare illumination...28 8.6 Setting the illumination type and working distance...28 8.7 Operating the control panel...29 8.8 Decomissioning...31

2

Product identification 3 2.1 Optional product features...3

3

9

Components and accessories 32 9.1 Observer side...32 9.2 Patient-side...35 9.3 Video accessories for Leica M620 F20...37 9.4 Load table...38

4

Design 11

10

5

Functions 11 5.1 Illumination... 11 5.2 Balancing System...12 5.3 Footbrakes...12

6

Controls 13 6.1 Control unit...13 6.2 Lamp housing...13 6.3 Tilt head/focus unit...13 6.4 Footswitch (standard configuration)...14 6.5 Stand...14 6.6 Optics carrier...15 6.7 Binocular tube, eyepiece, second observer tubes...15 6.8 User interface of the control panel...15

Care and maintenance 40 10.1 Care instructions...40 10.2 Cleaning the control panel...40 10.3 Maintenance...40 10.4 Care and Maintenance of the Leica Footswitch...41 10.5 Changing the fuse...41 10.6 Changing the bulb...41 10.7 Function check...41 10.8 Notes on reprocessing of resterilizable products...42

11

Disposal 44

12

What to do if ...? 44 12.1 General malfunctions...44 12.2 Microscope...44 12.3 TV, photography...45

13

Technical data 46 13.1 Electrical data...46 13.2 Surgical microscope...46 13.3 Stand...46 13.4 Optical data...46 13.5 Control unit ...47 13.6 Configurations and Weights...47 13.7 Ambient conditions...47 13.8 Electromagnetic compatibility (EMC)...47 13.9 Standards fulfilled...48 13.10 Limitations of use...48 13.11 Dimensions...49

7

2

Preparation before surgery 16 7.1 Transporting the surgical microscope...16 7.2 Positioning the surgical microscope at the operating table...17 7.3 Installing binocular tube, eyepiece and objective...18 7.4 Fitting adapters for accessories...19 7.5 Adjusting the second-observer tube...20 7.6 Fitting documentation accessories...21 7.7 Selecting documentation accessories...22 7.8 Adjusting the eyebase and eyepoint...23 7.9 Adjusting the parfocality...23 7.10 Changing accessories of the surgical microscope and balancing the swing arm...24 7.11 Installing sterile components...24 7.12 Preparing the surgical microscope for use...25 7.13 Checking the function of the lamp...25 7.14 Show/switch footswitch type...25 7.15 Reversing + and – directions of the XY unit...26

Leica M620 F20 / Ref. 10 714 371 / Version 01

Introduction

1

Introduction

2

1.1

About this user manual/ installation manual

In this user manual the surgical microscope Leica M620 F12 is described. In addition to notes on the use of the instruments this user manual gives important safety information (see chapter 3). X Read this user manual carefully before operating

the product.

1.2

Symbols in this user manual

Product identification

The model and serial numbers of your product are located on the identification label on the underside of the horizontal arm. X Enter this data in your user manual and always refer to it when you contact us or the service workshop regarding any questions you may have. Type

Serial no.

...

...

2.1

Optional product features

Different product features and accessories are optionally available. The availability varies from country to country and is subject to local regulatory requirements. Please contact your local representative for availability.

The symbols used in this user manual have the following meaning: Symbol

Warning word

Meaning

WARNING

Indicates a potentially 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.

NOTE

Indicates a potentially hazardous situation or improper use which, if not avoided, may result in appreciable material, financial and environmental damage. Information about use that helps the user to employ the product in a technically correct and efficient way.

X

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 01

3

Safety notes

3

Safety notes

3.4

The Leica M620 F20 surgical microscope is state-of-the-art technology. Nevertheless, hazards can arise during operation. • Always follow the instructions in this user manual, and in particular the safety notes.

3.1

Intended use of instrument

• The Leica M620 F20 surgical microscope is an optical instrument for improving the visibility of objects through magnification and illumination. It can be applied for observation and documentation and for human and veterinary medical treatment. • The Leica M620 F20 surgical microscope may be used only in closed rooms and must be placed on a solid floor. • The Leica M620 F20 surgical microscope is subject to special precautionary measures for electromagnetic compatibility. • Portable and mobile as well as stationary RF communications equipment can have a negative effect on the reliability of the Leica M620 F20 surgical microscope's functionality. • The Leica M620 F20 is intended for professional use only.

3.2

Indications for use

• The Leica M620 F20 surgical microscope is suitable for ophthalmic applications such as Retina, Cornea and Cataract surgery in hospitals, clinics or other human medical instituations. • The Leica M620 surgical microscope may only be used in closed rooms and must be placed on a solid floor or mounted to the ceiling. • This User Manual is intended for physicians, nurses and other medical and technical staff who prepare, operate or maintain the device after appropriate training. It is the duty of the device owner / operator to train and brief all the operating personnel.

3.3

Contraindications

No known contraindications for use.

4

Directions for the person responsible for the instrument

• Ensure that the surgical microscope is used only by qualified personnel. • Ensure that this user manual is always available at the place where the surgical microscope is used. • Carry out regular inspections to make certain that the authorized users are adhering to safety requirements. • When instructing new users, do so thoroughly and explain the meanings of the warning signs and messages. • Allocate responsibilities for commissioning, operation and maintenance. Monitor compliance with this. • Do not use the surgical microscope unless it is in proper condition. • Inform your Leica Microsystems representative or Leica Microsystems (Schweiz) AG, Medical Division, 9435 Heerbrugg, Switzerland, immediately if you detect a product defect that could potentially cause injury or harm. • If you use accessories from other manufacturers with the surgical microscope system, make sure that these manufacturers confirm that the combination is safe to use. Follow the instructions in the user manual for those accessories. • Modifications to or service on the surgical microscope may be carried out only by technicians who are explicitly authorized by Leica to do so. • Use only original Leica Microsystems parts in maintenance work. • After service work or technical modifications, the device must be readjusted in accordance with our technical specifications. • If the instrument is modified or serviced by unauthorized persons, is improperly maintained (as long as maintenance was not carried out by us), or is handled improperly, Leica will not accept any liability. • The effect of the surgical microscope on other instruments has been tested as specified in EN 60601-1-2. The system has passed the tests relating to emissions and immunity. Comply with the usual precautionary and safety measures relating to electromagnetic and other forms of radiation. • Only the supplied power cord may be used. • The power cord must have a protective conductor and must be undamaged. • The power cord must be mechanically secured with the "Power Input" socket to prevend accidental disconnection. • All parts of the Leica M620 F20 surgical microscope shall not be serviced or maintained while in use with a patient. • Lamps shall not be changed while in use with a patient. • Use of this equipment adjacent to other equipment should be avoided because it could result in improper operation. If such use is necessary, this equipment and the other equipment should be observed to verify that they are operating normally.

Leica M620 F20 / Ref. 10 714 371 / Version 01

Safety notes • Use of accessories and cables other than those specified or provided by the manufacturer of his equipment could result in increased electromagnetic emissions or decreased electromagnetic immunity of this equipment and result in improper operation. • The Leica M620 F20 surgical microscope may be used only in closed rooms and must be placed on a solid floor. • Portable RF communications equipment (including peripherals such as antenna cables and external antennas) should be used no closer than 30 cm (12 inches) to any part of the Leica M620 F20, including cables specified by the manufacturer. Otherwise, degradation of the performance of this equipment could result. The emissions characteristics of this equipment make it suitable for use in industrial areas and hospitals (CISPR 11 class A). If it is used in a residential environment (for which CISPR 11 class B is normally required), this equipment might not offer adequate protection to radio-frequency communication services. The user might need to take mitigation measures, such as re-locating or re-orienting the equipment. User qualifications The Leica surgical microscope may only be used by physicians and medical assistance personnel with appropriate qualifications who have been instructed in the use of the instrument. Specific training is not required.

3.5

Directions for the operator of the instrument

• Follow the instructions described here. • Follow the instructions given by your employer regarding the organization of work and safety at work. • Check the illumination intensity before and during surgery. • Do not move the system without released brakes. • Operate the system only with all equipment in its proper position (all covers fitted, doors closed). • To avoid the risk of electric shock, this equipment must only be connected to a supply mains with protective earth. • All parts of the instrument shall not be serviced or maintained while in use with a patient. • Lamps shall not be changed while in use with a patient. Phototoxic damage to the retina during eye surgery WARNING Damage to the eyes due to prolonged exposure! The light of the instrument may be harmful. Risk of eye damage increases with the duration of exposure. X During exposure to the light from this instrument, do not exceed the hazard reference values. For this instrument, an exposure time of over 3 min 35 seconds at maximum output power exceeds the hazard reference value. The following table is intended to serve as a guideline and make the surgeon aware of the potential hazard. The data have been calculated for the worst-case scenario: • Eye with aphakia • Completely unmoving eye (continuous irradiation of the same region) • Uninterrupted light exposure, e.g. no surgical instruments in the eye • Pupils dilated to 7 mm The calculations are based on the corresponding ISO standards1) 2) and the exposure limit values recommended in them. Published literature shows that a moving eye may allow for increased time of exposure 3).

Leica M620 F20 / Ref. 10 714 371 / Version 01

5

Safety notes Main Light Light setting

Recommended maximum exposure time according to 1) [min.] Without filter

With GG435 filter

With GG475 filter

25 %

1 h 21 min

1 h 33 min

4 h 22 min

50 %

19 min

23 min

1 h 08 min

75 %

7 min 39 s

9 min 10 s

28 min 46 s

100 %

3 min 35 s

4 min 30 s

14 min 42 s

With retina protection filter 5× (10448676) 100%

25 min 52 s Use the protection filter 5× (10448676) to increase the operation duration by at least a factor of 5 compared to the standard configuration without a filter.

Sources: 1) DIN EN ISO 15004-2:2007 Optical instruments – Fundamentals requirements and test methods – Part 2: Light hazard protection. 2) ISO 10936-2:2010 Optics and photonics – Operation microscopes/ Part 2: Light hazard from operation microscopes used in ocular surgery. 3) David Sliney, Danielle Aron-Rosa, Francois DeLori, Franz Fankhauser, Robert Landry, Martin Mainster, John Marshall, Bernhard Rassow, Bruce Stuck, Stephen Trokel, Teresa Motz West and Michael Wolffe, Adjustment of guidelines for exposure of the eye to optical radiation from ocular instruments: statement from a task group of the International Commission on Non-Ionizing Radiation Protection (ICNIRP), APPLIED OPTICS Vol. 44, No 11, p2162 (10 April 2005) Protect the patient with the following safeguards: • Short exposure times • Low brightness settings • Use of protective filters • Switching off the illumination during breaks in the operation It is recommended to adjust the brightness to the minimum necessary for the surgery. Infants, patients with aphakia (whose eyelens has not been replaced by an artificial lens with a UV protection screen), small children and persons with diseases of the eye are at greater risk. The risk is also increased if the person being treated or operated on has, within the last 24 hours, already been exposed to illumination from the same or any other ophthalmological instrument that uses a bright visible light source.

6

This applies especially to patients that have been examined via retinal photography. The decision with regard to the light intensity to be used must be made on a case-by-case basis. In any event, the surgeon must evaluate the risks and benefits of the used light intensity. Despite all efforts to minimize the risk of retinal injury by surgical microscopes, damage may still occur. Photochemical retinal damage is a possible complication of the necessity to use bright light to make eye structures visible during difficult ophthalmological processes. Stability (floor stands only) When moved in OP, the swing arm must be folded up and locked and the brakes must be applied, otherwise the swing arm may drift out of control and the stand could topple. Hazards due to movable parts This section describes uses that, inadvertently, could lead to hazardous situations. • Add accessories and balance the stand before the operation, and never over the field of operation. • Do not put your fingers between the microscope and the focusing drive; they could get crushed. Floor stand: • Always push the microscope to move it; never pull it. Feet in lightweight shoes could become trapped beneath the casing of the base. • The footbrakes must remain engaged throughout the operation. Electrical connections The control unit may be opened only by a Leica-approved service technician. Accessories Only the following accessories may be used with the Leica M620 F20 surgical microscope: • The Leica Microsystems accessories described in this User Manual. • Other accessories, provided that these have been expressly approved by Leica Microsystems as being technically safe in this context.

Leica M620 F20 / Ref. 10 714 371 / Version 01

Safety notes

3.6

Dangers of use WARNING Risk of injury from downward movement of surgical microscope! X Never change the accessories or attempt to rebalance the microscope while it is above the field of operation. X After every modification, balance the swing arm. WARNING Risk of injury through falling binocular tube! X Tighten the clamping screw securely. WARNING Risk of injury through falling surgical microscope! X Check the mounting of the assistant's stereomicroscope before every use. WARNING Risk of injury from parts falling down! X Complete all preparations and adjustments to the optics carrier before the operation. X Never rebalance or re-equip the optical components and accessories with the instrument over the operation area. X Check that the optical components and accessories fit well and are fastened securely before the operation. X Before changing equipment during an operation, swivel the microscope away from the operation area. 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.

CAUTION Surgical microscope can move without warning! X Always secure the footbrakes when you are not moving the system. CAUTION Danger of fatal electrical shock! X The surgical microscope may be connected to a grounded socket only. CAUTION Risk of infection! X Leave sufficient space around the stand to prevent contact with non-sterile components. WARNING Light that is too intense can damage the retina! X Observe the warning messages in the "Safety Notes" chapter on page 5. WARNING Failure of the illumination can be dangerous for the patient! X If the main illuminator fails, switch to the auxiliary illuminator immediately. WARNING Damage to the eyes due to prolonged exposure! The light of the instrument may be harmful. Risk of eye damage increases with the duration of exposure. X During exposure to the light from this instrument, do not exceed the hazard reference values. For this instrument, an exposure time of over 8 minutes at maximum output power exceeds the hazard reference value.

• Abrupt braking of the surgical microscope at a threshold that cannot be crossed. X For transportation, always move the Leica M620 F20

surgical microscope into the transport position. X Never move the stand while the unit is extended. X Never roll over cables lying on the floor. X Always push the Leica M620 F20 surgical microscope -

never pull it.

CAUTION Damage to the control panel! The light of the instrument may be harmful. Risk of eye damage increases with the duration of exposure. X Only operate the control panel using your fingers. X Never use hard, sharp or pointed objects made out of wood, metal or plastic. X Never clean the control panel using cleaning agents that contain abrasive substances. These substances can scratch the surface and cause it to be become dull.

Leica M620 F20 / Ref. 10 714 371 / Version 01

7

Safety notes WARNING Danger of fatal electric shock! X Disconnect the power cable from the instrument power socket before changing fuses. CAUTION Risk of burns! The lamp and illumination mount get very hot. X Check that the lamp and illumination mount have cooled before you remove the lamp. WARNING Risk of infection! This antimicrobial coating is no substitute for the usual cleaning and sterilization procedures according to the applicable regulations. X Clean and sterilize the instrument as usual according to the applicable regulations. WARNING Risk of injury through surgical microscope moving down! X Do not exceed the max. load when equipping components and accessories. X Check the total weight using the "Load table" (see page 38).

8

Leica M620 F20 / Ref. 10 714 371 / Version 01

Safety notes

3.7

Signs and labels 10

12

12 12

4 5

6

7

8 9

3

11

2 1

13

Leica M620 F20 / Ref. 10 714 371 / Version 01

9

Safety notes 1

ANVISA Registration number (only Brazil)

2

8

INMETRO label (only Brazil)

               

OCP 0004

3

Grounding label      
    

Transport position (F20 floor stand) 9

4 270 KG

5

Mandatory label read the user manual carefully before operating the product. Web address for electronic version of the user manual. Medical Device

System weight label (F20) Type label 10

6

MET label (only USA and Canada)

7

Fabrication label

Max. 6.50 kg (14.33 lb)

11

REF SN

Danger sign for hot surface 12

a b c d

Prefix number Leica system article no. Serial number Incremental number starting at 1 for each batch e JJ = year (2 digits) f MM = month (2 digits) g TT = day (2 digits) h Production starting date

10

Max. load for optics carrier

13

Tilt Label

UDI Label   

Device Identifier (DI) GS1 Data Matrix Code Production Identifier (PI) Serial number Date of manufacturing

Leica M620 F20 / Ref. 10 714 371 / Version 01

Design

4

Design

Functions

5.1

Illumination

The illumination of the surgical microscope Leica M620 is a Halogen light system with 2 bulbs (1), where the second is only a spare. Both bulbs are located in the optics carrier. In case of a failure of the lamp in use, the other lamp can be selected with the slide button (3) for quick-change lamp mount (2).

1 2 3 4 5 6 7

9

5

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

The 6° illumination or inclined and vertical light (indication with 2 bulbs at the optics carrier) can be adjusted with the rotary button to obtain red reflex and more contrast. The 0° light or vertical light (indication with 1 bulb at the optics carrier) will remain permanently.

Leica M620 F20 / Ref. 10 714 371 / Version 01

11

Functions

5.2

Balancing System

5.3

With a balanced surgical microscope Leica M620 F20 you can move the optics carrier in any position without tilting or falling down. After balancing, all movements during operation only need a minor force. With the rotary knob (3) on the swing arm the drifts will be adjusted.

Footbrakes

Footbrakes are attached to each of the four wheels on the stand. The wheel is engaged and released with the footbrake engage/ release lever (1). X Press the footbrake engage/release lever down (3): The footbrake is engaged. X Lift the footbrake engage/release lever (2):

The footbrake is released.

–

1

+ 3

3

Balancing the swing arm X Hold the microscope firmly. X Pull the retaining pin (2). The swing arm is now released.

Check whether or not the microscope drifts. Microscope drifts downwards: X Turn the rotary knob (3) clockwise (+). Microscope drifts upwards: X Turn rotary knob (3) counter-clockwise (-).

12

2

Leica M620 F20 / Ref. 10 714 371 / Version 01

Controls

6

Controls

6.1

Control unit

6.2

Lamp housing

1

1

2

1 Main switch 2 Control Panel  2

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.

1 Lamp replacement cover 2 Slide button for quick-change lamp mount

6.3

Tilt head/focus unit

1

2

3

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 01

13

Controls

6.4

Footswitch (standard configuration)

6.5

Stand 3

1

1 2 1

7

1

2

6 5 4

1 2 3 4 5 6 7

3

XY adjustment Microscope illumination darker No Function Microscope illumination on/off Zoom up/down Focus bottom and top Microscope illumination brighter See page 30 for alternative footswitches and free programming of footswitches.

14

4 5

1 2 3 4 5

Articulation brakes Rotary knob for balancing Retaining pin Footbrake release lever Footbrake

Leica M620 F20 / Ref. 10 714 371 / Version 01

Controls

6.6

Optics carrier

6.8

User interface of the control panel For information on operating the control panel, see page 29.

"Main" menu 3

1

4

2

6

5

7

8

1 3

2 9

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

6.7

Binocular tube, eyepiece, second observer tubes 2

1

+5

–5 +5

–5

1 2 3 4 5 6 7 8 9

Illumination lighter/darker Zoom up/down Defective lamp warning XY reversal active "Speed" menu Reset All Reset XY Reset focus User selection 1-4

"Speed" menu 4 1

2

3

5

2

1 Drive knob for interpupillary distance adjustment 2 Diopter adjustment 3 Knurled ring for image correction

1 2 3 4 5

Zoom speed setting Focus speed setting XY-speed setting Back to the "Main" menu Switch to the service area (password-protected)

Leica M620 F20 / Ref. 10 714 371 / Version 01

15

Preparation before surgery

7

Preparation before surgery

Transport the surgical microscope and secure it in its installation location

7.1

Transporting the surgical microscope

X Pull the power plug from the socket and wrap the power cable

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.

around the handle. X Hook in the footswitch to the clip. X Step on the footbrake release lever (4) to release the footbrakes. X Push the surgical microscope to its new location by the handle

(3). X Lock the footbrakes at the installation location.

CAUTION Surgical microscope can move without warning! X Always secure the footbrakes when you are not moving the system.

X For transportation, always move the

Leica M620 F20 surgical microscope into the transport position. X Never move the stand while the unit is extended. X Never roll over cables lying on the floor. X Always push the Leica M620 F20 surgical microscope never pull it.

2 2

Transport position Locking the swing arm X Position the swing arm approximately horizontally. X Press in the retaining lever (1), rotate it horizontally and move

2

the swing arm up and down until the retaining lever snaps into place. The swing arm is now locked. X Release the articulation brakes (2), fold the swing arm. X Move the surgical microscope into transport position and tighten the articulation brakes.

3

1

4

4 4

16

Leica M620 F20 / Ref. 10 714 371 / Version 01

Preparation before surgery

7.2

Positioning the surgical microscope at the operating table CAUTION Danger of fatal electrical shock! X The surgical microscope may be connected to a grounded socket only.

1

X Carefully move the surgical microscope to the operating table

using the handle and position it for the forthcoming operation. X Tighten the footbrakes. X Plug the power cable (3) into the socket and secure it with cable ties (2). X Connect the potential equalization to the socket (1) on the control unit. X Connect the footswitch to the socket (4) on the control unit. 1 2

4

2

3

1

1

X Adjust the tilt of the footswitch. Rotate the footrest in or out. X Check that all accessories are correctly connected and securely

attached. X Release the articulation brakes and set them to a light

resistance. Make the joint easier to move: X Release the articulation brake (1). Make the joint more difficult to move: X Tighten the articulation brake (1). X Pull the retaining lever (2). X Extend the swing arm. X Check the weight setting on the swing arm by raising and lowering the microscope and correct as necessary, see page 24. CAUTION Risk of infection! X Leave sufficient space around the stand to prevent contact with non-sterile components.

Leica M620 F20 / Ref. 10 714 371 / Version 01

17

Preparation before surgery

7.3

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! X Tighten the clamping screw securely.

Fitting the objective protection glass X Screw the holder for the objective protection glass (2) into the

objective and position it such that the mark (3) faces backwards. X 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.

1

2

X Tighten the clamping screw (1).

3

X Push the binocular tube into the dovetail ring. X Tighten the clamping screw securely.

4

Fitting the eyepiece

5

X Set the eyepiece in place. X Tighten the rotary ring (1).

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. X Remove cover (1) of the filter slots.

X Mount the filter in the filter holder with a tension ring.

Eyepieces Eyepiece 8.33×, adjustable Eyepiece 10×/21B, adjustable Eyepiece 12.5×/17B, adjustable

18

Leica M620 F20 / Ref. 10 714 371 / Version 01