Leica M844 F40 User Manual

Leica M844 F40

Redefining the premium class in Ophthalmic Surgery

Living up to Life

Leica

M844 F40

See more of what you need to see.

Combining a higher level of optical
quality than ever before with the
best technologies of today’s surgical
microscopes, the Leica M844 truly
redefines the premium class of oph­thalmic surgical microscopes.

The Leica M844 is the microscope

you must see!

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Leica Design by Christophe Apothéloz

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Uniquely Leica

Crisp and sharp!

Leica’s APO OptiChromeTMM844 Optics provide the
highest resolution to see even the smallest anato­mical details.

Same perfect view, same perfect light!

Leica’s QuadZoomTMgives both the surgeon and
assistant 100% of the illumination and the same
magnification.

Safety forthe patient,fatigue-free viewing for the surgeon!

Leica’s exclusive direct illumination system offers the
best clarity, contrast and colour at safe low-light levels.

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M

APO OptiChrome

T

Changing
microsurgery forever

Leica introduces the original APO OptiChrome™

Providing an extraordinary degree of light transmission for maxi­mum detail recognition is critical for all types of ophthalmic
microsurgery. For the posterior segment surgeon, where avail­ability of light is limited, a high degree of light transmission is
essential. For refractive and anterior segment surgery, low light is
always better for the patient.

Expect only the highest standards in optics from the Leica M844

• Sharper and crisper image

• Higher light transmission

• Natural colour fidelity

• Outstanding depth of focus

• Higher contrast

QuadZoom

TM

Uniquely Leica

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Efficient illumination

By utilising four separate beam paths through the same common

TM

zoom system, the Leica QuadZoom
OptiChromeTMstereovision and 100% illumination for both the
main surgeon and the assistant.

2 × 2 views always synchronized

By putting both pairs of beam paths through one common zoom
system, as the surgeon changes magnification, the assistant’s
view is perfectly synchronized with the surgeon’s view.

delivers 100% APO

M

OttoFlex

T

II
See more
with less light

See more with less light

Low light ensures fatigue-free viewing and patient safety

With two bulbs and two prisms, the Leica M844 creates true
three-dimensional illumination. Using a focused, direct illumina­tion system instead of fiber optics, the Leica M844 takes a ray of
light and projects a crisp, sharp and homogeneous image even at
very low light levels. Proven for over 25 years, this combination of
direct halogen illumination and highly efficient optical transmis­sion ensures patient safety and fatigue-free viewing for the sur­geon.

See things in a different light

TM

OttoFlex
a brilliant red reflex even in low light conditions and enhances the
view’s contrast. Difficult anatomical conditions, such as small
pupils or very advanced cataracts are more easily visualised
through this unique system. Continuously adjustable from 4mm
to 35mm diameter, OttoFlexTMII places the brightness where the
surgeon needs it most.

II, an integrated independent illumination system, gives

OttoFlex II

Max

Field of main illumination

OttoFlex II

Min

Field of main illumination

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Take control

Intuitive control unit

The touch panel offers intuitive control of all the Leica M844’s
functions. The control unit’s operation is simple and straight­forward with many innovative features.

Everyone is an individual

Customised start settings, such as illumination and magnification
levels, are easily programmed into the control unit for up to 30 dif­ferent users. By having a surgeon’s individual settings available
at the touch of a button, the microscope is instantly ready for the
next procedure and/or surgeon and the workflow of the surgical
team is faster and more efficient.

Leica Two-in-One display control unit
mode (above) and video mode (below)

TM

StepCycle

Different levels of light, focus and zoom can optimize each phase
of surgery. Making these adjustments today takes surgeons’ pre­cious time. The automatic StepCycleTMfunction enables the sur­geon to program predefined settings that are used throughout
typical surgical procedures. After simple programming, a touch of
a button on the foot pedal will activate the microscope’s prede­fined settings, step by step, during the procedure.

Real-time video

With one touch of a button the control unit’s display becomes a
general use, real-time video monitor, which allows an immediate
and convenient view of the current surgical procedure for the
operating room staff. For general video viewing there is no need
for an extra video cart.

for greater efficiency

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Easy to use from start to finish

Leica F40 space saving stand with extended net reach

The Leica M844 F40 has the smallest footprint and the longest net
reach of any ophthalmic surgical microscope on the market. Due
to this design, the microscope is easy to position anywhere
around the operating table. Four large, fully pivoting casters and
an easy to grasp handlebar make the microscope effortless to
transport into and out of position.

Positioning in the Operating Room

The extra long reach of the Leica M844 F40

allows flexible positioning, even in

small rooms with many pieces of

equipment. Whether on the side of the

patient or over the surgeon’s shoulder,

the M844 F40 leaves a lot of space

around the operating table.

Auto Reset and it’s ready to go

When the surgeon pushes the swingarm up after each proce­dure, all the microscope functions automatically reset and the
microscope is ready for the next case. A real time saver for the
operating room staff and peace of mind for the surgeon.

Focus Lock – for quick movement in and out of the operative site

Focus Lock allows the surgeon to move the microscope in and out
of position laterally. With the microscope staying on the same
focus plane, the surgeon does not have to waste precious time
refocusing to continue his procedure.

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Side-to-side change

Easy side-to-side quick change for the assistant

Changing the assistant’s position from one side to the other can
be done quickly and easily without removing any parts. Simply lift
the main surgeon’s binoculars and rotate the assistant’s bridge.
No parts to drop or damage!

The UltraLowTMII for ideal eyepiece-to-field distance

The UltraLowTMII binocular eyepiece tubes drop lower than con­ventional binoculars, which compensates for stacking auxiliary
accessories on the optics, such as inverters or laser shutters.
The surgeon now works in comfort.

ErgonOptics™ for individual comfort and concentration

Every surgery requires the highest level of concentration from the
surgeon and his or her surgical team. The physical comfort of the
surgeon is critical to this concentration. Leica provides a large
selection of binoculars and three different objective lens types to
meet each individual surgeon’s physical requirements. No other
microscope system offers this range of surgeon and assistant
binoculars and objective lenses.

Eyepiece to
field distance ”XL”

Binocular Tube

Perfect ergonomics
in every situation.

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Eyepiece to
field distance ”S”

Widest range of ergonomics

to ensure comfort

Independent choice of wide-angle observation accessories

The Leica M844 is designed to accept the integration of wide­angle observation systems or stereo image inverters. In addition,
when integrating the Oculus SDI/BIOM system, the surgeon can
control its functions through the Leica M844’s 16-function foot
pedal therefore the system can be fully controlled by a single foot
pedal instead of two.

Additional microscope functions at your fingertips

All-brake release and new Focus Lock multi-function are conve­niently located on the rotatable handles. If desired, additional
functions can be programmed to meet a wide variety of individual
surgeon’s preferences.

Leica M844 controlling
Oculus SDI/BIOM system

Rotatable handles

Wide choice of foot pedals

Leica offers three foot pedal styles to meet the needs of all users.
XY, zoom, focus and illumination can be controlled from either
the 12-function cross or 12-function long pedals. The 16-function
cross pedal gives the user four additional options for individual
tasks, such as inverter usage, StepCycleTMor room light function.

Wide selection of foot pedals to fulfill any ergonomic need

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Flexibility for individual needs

Leica Zoom Video Adapter
on integrated video port

Video port now stays in place

The video port is now integrated into the back of the optics, which
means the video camera is always correctly configured and
ready to use. The need to switch the video camera from side to
side is no longer necessary. A real convenience for the operating
room staff. And, having a dedicated video port protects the video
adapter and camera from possible damage.

Leica Zoom Video Adapter

The Leica Zoom Video Adapter has a 3× optical zoom and sterile
fine focus adjustment. Individual magnification adjustment of the
video image is independent of the microscope zoom, which gives
the surgeon full freedom to adjust the monitor image for the surgi­cal team without affecting the surgeon’s view.

Leica precision slit lamp

Leica precision operating slit lamp

The Leica surgical slit lamp, with world-renowned Swiss preci­sion, provides full slit functions. The slit beam is adjustable in
width and length and can be scanned over the cornea +/-23° from
any position via the foot pedal. A retractable blue filter and inte­grated quick change lamp add to its functionality.

Laser adaptability

Most commercially available laser shutters and laser filters can
be easily integrated with the Leica M844 system.

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Training for the future

QuadZoom™ – The ultimate view for everyone

Proper surgical training requires everyone to see the same view.
The Leica M844 optical system delivers the same magnification
and stereo view simultaneously for both the teacher and the stu­dent. A focus override knob on the assistant bridge allows indi­vidual fine-tuning separately from the main surgeon.

Two-in-One control unit and video screen

The Leica M844 is equipped with a unique control unit that can be
switched to a general use, real-time video monitor during
surgery. With camera, camera control unit, and monitor all
mounted on the Leica F40 floor stand, there is no need for a sepa­rate video cart. The entire surgical team can have the benefit of
video for every case. If there is a need for extremely high quality
documentation, the staff may choose to connect an additional
video monitor to the system.

Leica Two-in-One display control unit in video mode

Leica M844 with double wing assistant bridge

Double wing = three stereo observers

The unique Leica double wing assistant bridge enables the
teacher to have two students in full stereo view simultaneously at
the same magnification. With the newly integrated video display,
all three along with the operating room staff and additional stu­dents can observe and learn via the video monitor.

Documentation for education

All the latest documentation options are available with the
Leica M844. The Leica MDRS4 digital recording system, as well
as many other commercially available digital video systems can
be interfaced. Even classic 35mm photography can still be done
with the Leica M844. All this to ensure ideal documentation
capabilities for training the surgical teams of tomorrow.

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Electrical data

Power supply 90–265VAC, 50/60Hz

ower consumption 400 VA

P
Classification Class 1
Type Type B

Microscope

Magnification changer APO-Zoom 6:1, motorized, with 4 separate beam paths
Magnification 3.5× – 21× (WD 175mm, 10× eyepieces)
Optic APO-chromatic corrected optics
Field diameter 7mm – 80mm
Working distance 175mm, 200mm and 225mm
Focus range 54mm, motorized, with automatic reset
Eyepieces Wide field eyepieces for eyeglass wearers (8.33×, 10×, 12.5×)

Dioptric setting +/–5 with adjustable eye cup

Objectives Leica OptiChrome™ , WD 175mm, APO

Leica OptiChrome™ , WD 200mm, APO
Leica OptiChrome™ , WD 225mm, APO, (WD = working distance)

Illumination

Quick-change lamp mount With two 12V / 50W halogen lamps
Filters IR-barrier filter, UV-barrier filter, two built-in filter holders for optional filters

Stand

Type Floor stand with 4 electromagnetic brakes

Alternatives: Ceiling Mount Leica M844 C40 or Telescope Mount Leica M844 CT40
Balancing Continuously adjustable gas spring
Maximum load 12.2kg accessories to the microscope
Maximum reach 1492mm
Vertical range 846mm
Minimum transport height 1949mm
Weight without microscope Approx. 330kg
XY-unit Motorized, movement range 50 × 50mm, with automatic reset
Tilt mechanism Motorized, +15°/–50°
Hand switch/Foot pedals 16- or 12-function foot pedal with controls arranged longitudinally or transversely

12-function hand switch
Control unit Two-in-one display, control and video display in one. The latest electronic control for the continuous

monitoring of all motor functions and the light intensity. Data shown by means of LCD, with adjustable contrast

and brightness. Operation by modern touch-panel control. ISUS

TM

Intelligent SetUp System, menu selection
based on unique software for user-specific configuration, with built-in electronic auto-diagnosis and user
support. Open architecture for future software developments.

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Technical Data

Leica M844 F40

Accessories

° assistant attachment 100% Stereopsis at same magnification, including documentation interface, rotatable from side to side

0

(temporal approach), built-in fine focusing, rotatable ring for binocular tube

Double wing For three observers simultaneously

V/Photo Leica 2D video systems, Leica MDRS4 digital recording system, Leica Zoom Video Adapter f = 35–100mm

T

Photo/TV Dual-attachment, f = 60/85/107mm for TV, f = 250/350mm for 35mm camera, TV tube f = 107mm

Phototube f = 250/350mm
Wide-angle observation BIOM, EIBOS
Inverters AVI, SDI, OIVSL, ROLS
Laser Can be fitted, adapters available from laser suppliers
Slit lamp Leica, motorized travel +/–23°, Slit width 0.01..15mm, length 3..15mm, Rotatable 180°, quick lamp-changer
Asepsis Sterilizable components for all drive knobs, commercially available drapes

Conformity

• Medical devices directive 93/42/EEC
Classification: Class I, in compliance with appendix IX, rule 1, with reference to rules 12 of the directive.

• Medical electrical equipment, Part 1: General requirements for safety IEC 60601-1; EN 60601-1; UL60601-1;
CAN/CSA-C22.2 NO. 601.1-M90

• Electromagnetic compatibility IEC 60601-1-2; EN 60601-1-2

The Surgical Division, within Leica Microsystems (Schweiz) AG, has the management system certificate for
the international standards ISO 9001:2000 / ISO 13485:2003 and ISO 14001:2004 relating to quality management,
quality assurance and environmental management.

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www.leica-microsystems.com

Leica Microsystems operates globally in four divisions,
w

here we rank with the market leaders.

•

Life Science Division

T

he LeicaMicrosystems Life Science Division supports the
imaging needs of the scientific community with advanced
innovation and technical expertise for the visualization,
measurement, and analysis of microstructures.Ourstrong
focus on understanding scientific applications puts Leica
Microsystems’ customers at the leading edge of science.

•

Industry Division

The Leica Microsystems Industry Division’s focus is to
support customers’ pursuit ofthe highest quality end result.
Leica Microsystems provide the best and most innovative
imaging systems to see, measure, and analyze the micro­structures in routine and research industrial applications,
materials science, quality control, forensic science inves­tigation, and educational applications.

•

Biosystems Division

The Leica Microsystems Biosystems Division brings his­topathology labs and researchers the highest-quality,
most comprehensive product range. From patient to pa­thologist, the range includes the ideal product for each
histology step and high-productivity workflow solutions
for the entire lab. With complete histology systems fea­turing innovative automation and Novocastra™ reagents,
Leica Microsystems creates better patient care through
rapid turnaround, diagnostic confidence, and close cus­tomer collaboration.

•

Surgical Division

The Leica Microsystems Surgical Division’s focus is to
partner with and support surgeons and their care of pa­tients with the highest-quality, most innovative surgical
microscope technology today and into the future.

“With the user, for the user”
Leica Microsystems

The statement by Ernst Leitz in 1907, “with the user, for the user,” describes the fruitful collaboration
with end users and driving force of innovation at Leica Microsystems. We have developed five
brand values to live up to this tradition: Pioneering, High-end Quality, Team Spirit, Dedication to
Science, and Continuous Improvement. For us, living up to these values means: Living up to Life.

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and representatives in more than 100 countries

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10 M1 8440en/F • © Leica Microsystems (Schweiz) AG • CH-9435 Heerbrugg, 2009 • Printed in Switzerland – VII.2009 – RDV –