Leica M680 2 X 2 User Manual

Leica M680 2 x 2

2 independent zoom systems,

2 independent focusing systems

Surgical microscope for reconstructive,

hand, heart and spinal surgery, urology

and gynaecology

The Leica M680 innovation:
Identical working conditions
for surgeon and assistant.

The Leica M680 surgical microscope, with its two independent
zooms and its two independent internal focusing systems, is the
first instrument to offer ideal conditions for co-operation between
surgeon and assistant. The magic 2x2 formula brings more indivi­dual freedom within the teamwork. Each surgeon can use a hand­or footswitch to bring the image into focus and, depending on the
momentary requirements of the particular user, can engage either
a high magnification for detailed observations or a low magnifica­tion for an overall view. This results in better and quicker team
work. Naturally, the Leica M680 can also be used like a conventio­nal surgical microscope, and under these
circumstances the two independent zooms
can be coupled at the touch of a key, the
individual focusing possibilities remaining
unimpaired.

Mechanical, optical and electronic compo­nents have been combined in the Leica M680
at a level never before seen in a surgical
microscope, resulting in a compact high-technology instrument.
The fascinating advance of technology in this field is perceptible
in the diagram opposite, and goes a long way towards meeting
medical requirements.

The Leica M680 offers new opportunities in reconstructive, hand,
heart and spinal surgery, and also in urology and gynaecology.

2

The claims of high technology:

High technology must serve the needs of the user. lt must not

become an end in itself. The targeted application of electronics

can expand the performance range of an instrument consider-

ably, and the function of high-tech within this framework is to

make the instrument easier to use and more reliable, and to

improve the convenience available

to the user. This is the philosophy of

the Leica researchers and designers

who are behind the development of

the Leica M680.

The pride of our designers

The Leica M680: A technological work
of art, consisting of 283 optical,
electronic and precision-engineered
components.

2x surgical know-how

Microsurgery from two sides: Two

pairs of eyes and two pairs of hands

can do more for the patient if the

optics and ergonomics are right for

both the surgeon and the assistant, as

they indeed are in the Leica M680.

3

The optics of the Leica M680:
You simply see more.

Optical quality and intense illumination always have been the tra­ditionally-outstanding features of Leica surgical microscopes.
Now the Leica M680 has set new standards even there. The
remarkable depth of field has been described by users as «four­fingers deep». The fields of view have been enlarged 50% to give
the full overall picture, reducing or even eliminating the need to
refocus or reposition in certain surgical disciplines. The brilliant,
high-contrast image permits meticulous work even at low magni­fications. Thanks to the perfect three-dimensional impression and
the outstanding resolution, the observer simply sees more.

The powerful light source ensures that the brightness of the field
observed remains constant over the whole magnification range,
so the eyes are not constantly readjusting to new light levels. T wo
illumination prisms ensure that the output of the 50-watt halogen
lamp is fully exploited, and supply more than enough light for all
applications. The uniquely-high transmissivity of the optical com­ponents can be demonstrated with a simple but impressive test:
Even with the microscope illuminator switched off, fine structures
can be clearly observed at any magnification using normal room
lighting.

Partial lesion of the median nerve,
hand joint.
Photographs by kind permission of
Dr B. Forster, Switzerland

Not just a piece of glass

The high-performance objectives are
a silent witness to the combined traditional
expertise and state-of-the-art knowledge of
Leica in Switzerland, and of its personnel.

4

Interchangeable objectives

Focal lengths 200 mm, 250 mm, 300 mm

and 350 mm, for various working

distances, magnification ranges and

field diameters.

User-related development:

The idea of the surgical microscope has only one goal – to make

features more visible and recognizable so as to be able to work

more confidently. In the interests of the patient no concessions

are to be made with regard to optical quality, lighting and relia-

bility. Our development work is user-orientated; we keep the

patient at the centre of our activities. Medical consultants from

various disciplines have critically followed every step and have

enriched the project with their advice.

5

Interchangeable stereo
modules and rotatable
adapters: The instrument
accommodates to you and
to your requirements.

In addition to the well-established 180º dual stereo attachments,
the Leica M680 includes a real innovation: Short and long stereo
modules, combinable as required. These quickly-interchangeable
modules compensate for differences in stature between the two
surgeons, and also balance out an asymmetrical field of operation.
Whether an operating table is broad or narrow is no longer impor­tant; the adaptable Leica M680 accommodates to the conditions
imposed. The individuals at the instrument both have access to a
relaxed posture in all respects. Ergonomic working at the Leica
M680 is not a matter of chance; it is a concept.

lf the microscope has to be swung out during the operation, the
binocular tube can be levelled up with a ±30º rotatable adapter,
and the comfortable head position is retained. Because of its
optical quality, its constant light intensity and its adaptable
components, the Leica M680 offers the best conditions for fatigue­free operations extending over many hours.

Example:
Operating table broad and operating field asymmetrical:
Stereo modules, long/short

6

Ergonomics:

The science of human engineering. People are not all built to the

same pattern, and these differences, along with the require-

ments imposed by the various surgical techniques, must be

taken into account during the designing of a surgical micro-

scope. The problems can only be overcome with a dynamic

system of modular components. Getting the configuration right is

one of the most important functions of our R&D department.

No more problems with ergonomics

Operating table broad or narrow? Operating

field symmetrical or asymmetrical? Two long

stereo modules and two short ones ensure the

maximum of viewing comfort for both users.

7

User-friendliness and
motorized movement:
All four hands are free
for the operation.

The motorized mobility and built-in intelligence of the Leica M680
underpin the surgeon’s work. Focusing and zooming are both
motorized, as are the tilting and turning of the microscope, so it is
very easy to position the instrument over the operating field. Each
user has a separate handswitch or footswitch and individual
access to the zoom and focusing system. In practise, one of the
surgeons also takes over responsibility for governing the move­ments of the microscope. This function can be transferred to the
other surgeon during the course of the operation.

The automatic accommodation of focusing and tilt speeds to the
zoom position is also very convenient, because it enables the
speeds to be reduced with increasing magnification, thus avoiding
overrun of the correct focus plane and of the selected observati­on point. When the instrument is switched on, the zoom and the
internal focus automatically travel to a central starting position.
This reset function can be reactivated at any time. Bulb failure is
also signalled automatically. These are just a few of the many
electronic refinements which make the Leica M680 so easy to use.

Changing sides quickly

lf the surgeons change sides during

the operation, they take their own

personal outfits along with them,

including the interpupillary and diop-

tric settings, the stereo module, and

the accessories for photo, video etc.

To avoid physically moving the foot-

switches, these can be redesignated

by means of switches.

8

Unfold capabilities:

In the experienced hands of the specialist, the surgical micro-

scope becomes an instrument for realizing the user’s full poten-

tial. The assistant requires ideal conditions for learning and

co-operation. This requirement has upgraded the entire Leica

M680 project to a concept.

The electronics can be interesting as well

This is particularly true when the
electronics bring user benefits; the knobs
for regulating the focus, zoom and XY
speeds, for example, or the LEDs
which help with the inspection of the
functions.
Not forgetting something invisible from
outside – the dependence of focus- and
XY speeds on the magnification.

Just a few LEDs?

The Leica M680 demonstrates its

intelligence here: The master function,

which couples the two zooms; the

reset functions for zoom and focus; the

zoom positions; the lamp inspection.

9

Modular components:
The choice is yours.

The modular system of Leica surgical microscopes
not only enables the workplace to be ergonomically
planned, as shown on pages 6 and 7; it also has clear
economic advantages, because existing Leica
accessories can also be used on the Leica M680.
Sets for photography, TV and dualstation viewing can
be added at a later date in accordance with chan­ging requirements in documentation and training.
Beam splitters and accessories can be quickly fit­ted to the surgical microscope, or removed again.

Leica 2
2D video module

Microsurgical procedures can now be demonstra­ted live on video to a large number of spectators.
The compact stereo module can be inserted into the
beam path of the surgical microscope or can
be integrated into the accessories used by the
assistant.

Photography and video

The Leica SLR camera and the video
camera can be on the left. Or the
configuration can be reversed.
Just as you wish.

10

Modularity and the future:

Surgical techniques evolve. The precise procedures and requi-

rements of the future are not known, and yet a pace-setting sur-

gical microscope must be ready for them. Only the flexibility

offered by a modular system provides the latitude to accommo-

date unforeseen modifications and new accessories, and that is

why Leica surgical microscopes are planned along these lines.

For floor or ceiling

The floor stand is rollable from place
to place. The position chosen for the
ceiling mount takes account of the
layout of the room and of the locations
of existing installations.

11

Leica Microsystems (Schweiz) AG
Business Unit SOM
Max Schmidheiny-Strasse 201
CH-9435 Heerbrugg

Telephone [phone]
Fax [phone]
www.leica-microsystems.com
www.surgicalscopes.com

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for outstanding products

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solutions to our customers’ needs for vision, measurement, lithography and analysis
of microstructures.

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Cambridge Instruments. Yet Leica symbolizes innovation as well as tradition.

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The main performance features

Magnification changer 2x 1:5 zoom, motorized
Focusing drive 2x internal focus, motorized
Tiltable and inclinable joints Motorized
Adjustment speeds Dependent on magnification
Binocular tube 2x with variable viewing angle

and tube

adapter, ±30º rotatable
Stereo modules 2x short, 2x long
Interchangeable objectives f=200 mm, 250 mm, 300 mm, 350 mm
Wide-field eyepieces for
spectacle wearers 10x, 16x
Total magnifications 1,4x to 12,5x (with 10x eyepieces)
Field diameter 16.8 mm to 147 mm

(with 10x eyepieces)
Quick-change lamp mount 2x precision-centred

12 V/50 W halogen bulbs
Stands Floor stand and ceiling mount,

OH overhead stand
Accessories Photo/TV dual adapter, stereo

attachment

for second observer, Leica 2-2D

video module

Illustrations, descriptions and technical data are not binding and may be changed without notice.

© Leica Microsystems (Schweiz) AG • CH-9435 Heerbrugg, 2003 • Printed on chlorine-free paper with a high content of recycled fibre.

Publication no. in: 10 M1 680 1en-A • Printed in Switzerland – X.2004 – SÄP