M841 and M841 EBS User Manual Ver I

Leica M841 / Ref. 10 708 208 / Version I

Chapter overview

Introduction

3

Operating elements

8

Preparation before the operation

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Operation

29

Safety precautions

36

Care and maintenance

42

What to do if...

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Technical data

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Leica M841 / Ref. 10 708 208 / Version I

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Contents Page Introduction Design and function

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Operating elements Surgical microscope Control unit Floor stand EBS floor stand Leica Ceiling Mount Leica Ceiling Mount with swing arm C40 Leica Telescope Mount Accessories Video and photo

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Preparation before the operation Checklist: Before the operation 16 Operational check 17 Last steps 17 Mounting accessories 17 Settings at the stand 20 Mounting binocular tubes, objectives and eyepieces 24 Wide-field eyepiece for spectacle wearers 25 Setting parfocality 25 Transportation, positioning at operating table and parked position 26 Positioning the microscope 28 Sterile controls 28 Operation Settings at the control unit Configuration Settings at microscope Adjusting the illumination Setting the magnification Setting the focus Quick-change lamp mount for main light Filter Setting the drift brakes at the EBS floor stand Setting the drift brakes at the Leica M841 C40 ceiling mount Safety precautions Intended use of instrument Information for the person responsible for the instrument Information for the user Dangers of use Labelling

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29 31 33 34 34 34 34 34 35

Page Care and maintenance Care instructions 42 Maintenance 42 Changing the fuses at the EBS floor stand 42 Changing the fuses at the C40 swing arm 42 Replacing lamps 43 Information about the re-preparation of sterilisable products 44 Instructions 44 What to do if... Microscope Stand TV, photography Technical data Microscope Illumination Accessories Electrical data Auxiliary power socket Optical data Stands and mounts Swing arm Environmental conditions Standards Limitations on use Dimensional drawings (mm) for Leica Ceiling Mount Dimensional drawings (mm) for Leica Ceiling Mount with swing arm C40 Dimensional drawings (mm) for Leica Telescope Mount Dimensional drawings (mm) for Leica Mini Mount Dimensional drawing (mm) for floor stand Dimensional drawing (mm) for EBS floor stand

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Leica M841 / Ref. 10 708 208 / Version I

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Introduction Symbols used in this manual

User Manual This user manual contains important safety precautions as well as information on setting up the instrument (see the chapter entitled “Safety precautions”). Before attempting to set up the product carefully read through the user manual.

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

Product identification

Warning

This indicates a potentially hazardous situation which could result in death or serious injury.

Caution

This indicates a potentially hazardous situation which could result in minor or moderate injury, but possibly considerable material, financial or environmental damage.

The model and serial numbers of your product are located on the identification label on the underside of the swing arm. Copy this information into your user manual and always refer to it if you have questions for our representatives or service locations. Model:

Information provided to help the user use the product technically correctly and efficiently.

Serial No.:

➩

Leica M841 / Ref. 10 708 208 / Version I

This symbol indicates that you must perform a specific action or series of actions.

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Introduction

Design and function Floor stand

Floor stand EBS

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1 Swing arm 2 XY-unit 3 Tilt drive 4 Binocular tube 5 Optics carrier 6 0° assistant’s stereomicroscope 7 Foot 8 Column 9 Control unit 10 Additional weight

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Control unit Handgrips with brake triggering Footswitch holder Basic tower Brake remote brake triggering Column Swing arm

Leica M841 / Ref. 10 708 208 / Version I

Introduction Leica Mini Mount

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1 Leica Mini Mount

Leica Telescope Mount

2 Leica Telescope Mount

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Introduction Leica Ceiling Mount

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Leica Ceiling Mount

Leica M841 / Ref. 10 708 208 / Version I

Introduction Leica Ceiling Mount with swing arm C40

1 Leica Telescope Mount 2 Swing arm C40

Leica Ceiling Mount with swing arm C40 3

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3 Leica Ceiling Mount

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Operating elements

Surgical microscope 1

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1 XY-reset button XY drive returns to central position 2 Focus reset Focus returns to basic setting (1/3 upwards, 2/3 downwards) 3 Rotary knob for setting the eye-base at the binocular tube of the 0° assistant’s stereomicroscope 4 Wide-field eyepiece for spectacle wearers with adjustable dioptre settings +5 to –5 5 Rotary knob for motor-driven tilt drive 6 Reserve connection socket

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7 Plug screw of the cover on the rear of the optics carrier 8 Lamp housing OttoFlex™ 9 Socket for external supply 0–12 V/50 W max. 10 Changeover switch Ottoflex/external supply 11 Clamping screw fastens the 0° assistant’s stereomicroscope 12 Handgrip/Brake triggering for swing arm C40 and EBS floor stand 13 Slot for filter slide 14 Quick-change lamp mount with two halogen lamps 15 Lamp housing main light 16 Focus fine adjustment for 0° assistant’s stereomicroscope 17 Access to emergency operation for mechanical tilt drive

Leica M841 / Ref. 10 708 208 / Version I

Operating elements

Control unit

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Front view 1 Main power switch for switching the microscope on and off (not used at swing arm C40 and EBS floor stand) 2 Display key for selecting one of the three display levels 3 Display 4 Arrow keys. The function of the individual key is shown in the display

Connections 5 Power connection (not used at swing arm C40 and EBS floor stand) 6 On/Off connection for external device 7 Foot-/handswitch 1 8 Foot-/handswitch 2 9 Microscope 10 CAN bus interface 11 Brake screw for tiltable control unit 12 Socket for earthing potential when interferences occur in connection with other devices (not used at swing arm C40 and EBS floor stand)

Leica M841 / Ref. 10 708 208 / Version I

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Operating elements

Floor stand

EBS floor stand 3

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Foot brakes lock the stand Foot levers release the foot brakes Holder for footswitch Handle for moving the stand Brake screw for control unit Articulation brakes regulate the ease of movement Rotary knob for balancing the surgical microscope Retaining hook blocks the swing arm In the figure: Retaining hook released, swing arm moves freely 9 Locking lever holds the retaining hook in released state as shown in the figure 10 Footswitch 11 Control unit on/off 12 Additional weight

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1 Foot brakes lock the stand 2 Foot levers release the foot brakes 3 Drift brake swing arm 4 Stop handle 5 Brake screw for control unit 6 Handgrips with brake triggering 7 Brake remote brake triggering 8 Drift brake column 10 Footswitch 11 Control unit on/off

Leica M841 / Ref. 10 708 208 / Version I

Operating elements Basic tower EBS floor stand 1 2 9 3

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Auto Balance pushbutton LED System Ready LED Auto Balance Power connection LED power on Socket for earthing potential Service-interface socket Power switch Holder for footswitch

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Leica Ceiling Mount

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10 Remote control for Leica Ceiling Mount 11 Power supply for Leica M841 surgical microscope 12 Penetration possibilities for cables of video system, camera or laser Leica M841 / Ref. 10 708 208 / Version I

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Operating elements Remote control for Leica Ceiling Mount 1 Toggle switch for up/down movement

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Leica Ceiling Mount with swing arm C40

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Remote control for brake at Leica Ceiling Mount Power switch Rotary knob for balancing Locking lever Fuse holder Running-time meter for the Leica M841 surgical microscope system 8 Socket for earthing potential 9 Socket for remote brake triggering 10 Power connection for other devices (max. power output 100 VA, for application regulations refer to Technical data, Page 48.) Caution 14 Damage to the surgical microscope and to the external device through connection of non-permissible external devices to the auxiliary power socket! ➩Only connect conforming external devices to the auxiliary power socket. For application regulations refer to Technical data, Page 48. 11 Power connection

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Leica M841 / Ref. 10 708 208 / Version I

Operating elements

Leica Telescope Mount Remote control for Leica Telescope Mount

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1 Pushbutton for up/down movement

Leica M841 / Ref. 10 708 208 / Version I

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Operating elements

Accessories The Leica M841 surgical microscope can be adjusted to fit any work situation by means of extensive accessories. Your Leica branch would be pleased to advise you on selecting suitable accessories. Tubes

Binocular tube 10° – 50° ultra low • With particularly low-lying viewing angle • Viewing angle and height adjustable

Binocular tube 10° – 50° low • Viewing angle and height adjustable

Binocular tube variable 180° • Tiltable by 180°

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Binocular tube low • Cannot be tilted

Binocular tube 30° – 150° • Tiltable by 120° Double wing The double wing enables the presence of a 3rd observer in addition to the surgeon and the assistant.

• Same image detail for all observers • 50 % light distribution with the assistant, still 100 % light at surgeon • 100 % stereopsy for all observers • Binocular tubes ±15° horizontally rotatable

Leica M841 / Ref. 10 708 208 / Version I

Operating elements

Video and photo

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Leica 2 Beam splitter Dual attachment for TV and photo TV attachment or zoom-video adapter Photo attachment

Leica 2 • Video system for recording 2-D video images. • The camera is mounted between the microscope and the binocular tube. • The recordings are saved on a PC and can be edited. Dual attachment for TV and photo • Used to connect a video camera with C-mount and an SLR camera. Complete with adapters. • The dual attachment is mounted with the beam splitter (2) at the 0° assistant’s stereomicroscope. • Positioning of the video camera can be latched in 45° steps. • Video outlet with integrated brightness setting (3 positions).

TV attachment • For commercial video cameras with C mount, complete with adapter. • The camera is mounted with the beam splitter (2) at the 0° assistant’s stereomicroscope. • Positioning of the video camera can be latched in 90° steps. • Zoom and remote focus function at Leica zoom video adapter Photo attachment • For SLR cameras, complete with adapter. • Adapter f = 250 mm: For large recording areas and low exposure times. • Adapter f = 350 mm: For high magnifications. • The camera is mounted at the beam splitter (2) at the 0° assistant’s stereomicroscope.

Leica M841 / Ref. 10 708 208 / Version I

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Preparation before the operation

Checklist: Before the operation Cleaning optical accessories (see Page 42) ➩Select and inspect the cleanliness of the eyepieces and objectives as well as any photo or TV adapters. ➩Remove the dust and dirt. Mounting accessories (see Page 17) ➩Loosen articulation brakes, unfold swing arm. Tighten articulation brakes again. Leave retaining hook latched tight! ➩Outfit microscope with all accessories for use. Attach the 0° assistant’s stereomicroscope on the desired side. Balancing out (see Page 21) ➩Loosen the retaining hook. Balance out the surgical microscope at the swing arm (set rotary knob). Ease of movement (see Page 21) ➩Regulate the articulation brakes according to personal requirements and accessory weight. ➩Engage retaining hook again. Eyepieces (see Page 24) ➩Screw eyecups and any spacer rings tight. ➩In case of photography insert the graticule, if appropriate. Fold back the eyecups, if appropriate. Eye-bases (see Page 24) ➩Set.

Configuring the control unit (see Page 29 ff.) Caution 1 XY axes move to their basic settings! ➩Before switching on the control unit unfold the swing arm and ensure that the traverse paths of the X- and the Y-axis are free. ➩Switch on the control unit. The XY axes and the focus drive move to their basic positions (XY: centre, focus: 1/3 upwards, 2/3 downwards). ➩Configure the control unit (as far as necessary) (see Page 29). Leica Ceiling Mount – if present (see Page 27) ➩Move from the parked position downwards. Leica Telescope Mount – if present (see Page 27) Warning 2 Risk of injury through surgical microscope moving down! ➩Never position the surgical microscope over the patient when moving it down. ➩While moving the surgical microscope down observe it in order to avoid collisions. ➩Move from the parked position downwards. EBS floor stand – if existing ➩Balance out EBS floor stand (see Page 22). ➩Position it at the operating table (see Page 26).

Dioptrics (see Page 25) ➩Set. ➩Treat eyepieces with antifogging compound.

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Leica M841 / Ref. 10 708 208 / Version I

Preparation before the operation

Operational check

Mounting accessories

Main light ➩Connect the microscope to the control unit. If a lamp is defective, the following message is displayed on the control unit: “Warning! Main Light Lamp Defective”. ➩Use the quick-change lamp mount to switch on the 2nd lamp. If the 2nd lamp is defective, the following message is displayed on the control unit: “Main Light Spare Lamp Defective”. ➩Replace defective lamps immediately.

Warning 3 Risk of injury through surgical microscope moving down! ➩Never change the accessories or attempt to rebalance the microscope while it is over the field of operation. ➩Balance out the surgical microscope at the swing arm after every change of equipment. Preparation ➩Block the swing arm. Fitting the 0° assistant’s stereomicroscope

OttoFlex™ ➩Check the position of the Ottoflex/externally supply switch. ➩Set the brightness using the arrow key at the control unit. ➩Check the lamp. ➩Replace a defective lamp immediately. Foot-/handswitch ➩Test all functions with foot-/handswitch. ➩Position the foot-/handswitch. Brakes for EBS floor stand and C40 swing arm ➩Use the handgrips and remote triggering to check the function of the brakes. In case of malfunctions refer to Page 46.

Last steps Sterility ➩Attach sterile components and sterile drapes. Positioning at operating table ➩Block the height adjustment at the swing arm and fold it up. ➩Block the articulation brakes. ➩Move the stand to the operation table and position it for the operation. ➩Set the footbrakes.

Only attach the 0°-assistant’s stereomicroscope directly to the optics carrier. The 0°- assistant’s stereomicroscope can be swung to the left or right by means of the integrated rotating ring. ➩Screw out the clamping screw (1) until it stops by means of the screwdriver. ➩Insert the attachment of the 0°-assistant’s stereomicroscope into the dovetail ring so that the arrow (2) is positioned exactly over the clamping screw.

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➩Hold the 0°-assistant’s stereomicroscope and tighten the clamping screw (1). Depending on the equipment used first fasten the beam splitter and then the binocular tubes by the same method. 2 1 Mounting accessories ➩Loosen the clamping screw at the left-hand or right-hand outlet of the beam splitter and remove the black protective cover. ➩Insert the tube for second observer, photo, TV or dual attachment carefully and tighten the clamping screw.

Leica M841 / Ref. 10 708 208 / Version I

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Preparation before the operation Fitting the double wing We recommend mounting the longer arm of the double wing on the side of the focus housing in order to achieve optimal ergonomic conditions. ➩Screw out the clamping screw (1) until it stops by means of the screwdriver. ➩Insert the attachment of the double wing into the dove1 tail ring so that the arrow is positioned exactly over the clamping screw. ➩Hold the double wing and tighten the clamping screw. When the combination with the double wing is used, we recommend that the main surgeon uses the Ultra low binocular tube. The Ultra low binocular tube offers better ergonomic conditions. The double wing makes use of the pneumatic spring with 1270 N necessary instead of the standard spring with 1100 N. The additional weight (Art. No.: 10457174) has to be used. Please contact your Leica representative to this purpose.

Mounting the dual attachment ➩Fasten the dual attachment to the beam splitter. ➩Equip the TV camera with a TV objective and insert it in the dual attachment. ➩Tighten the clamping screw. ➩Equip the photo camera 1 with the camera adapter. Screw the photo objective to the camera objective. Insert the camera in the dual attachment. ➩Tighten the clamping screw. ➩Loosen the clamping screw (1) and engage the TV camera into one of the 45° steps according to the space available. ➩Tighten the clamping screw.

TV and photo formats with dual attachment TV/Video

Mounting the beam splitter Always attach the beam splitter at the 0° assistant’s stereomicroscope. ➩Turn the clamping screw out until it stops. ➩Slide the beam splitter into the dovetail ring and turn it slightly sideways until the positioning screw grips in the guide. ➩Tighten the clamping screw. ➩Fasten the binocular tube by the same means to the beam splitter. Tighten the clamping screw.

1/2”: 60 mm

1/2”: 85 mm

1/2”: 107 mm

2/3”: 60 mm

2/3”: 85 mm

2/3”: 107 mm

24×36 mm 250 mm

24×36 mm 350 mm

Photo

Regulating the brightness for TV at the dual attachment The brightness can be set to 30 %, 50 % and 100 % by means of the knurled ring (1). One of these filters can be replaced by the supplied 8 % filter. ➩Remove the camera. ➩Change the filter in the TV outlet.

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Leica M841 / Ref. 10 708 208 / Version I