Naso-Pharyngoscope
Instruction Manual
for
Flexible Endoscopes
Table of Content Page
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
2. Setup of Appliance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
3. Key to the Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
4. CE-Label . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
5. Short Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-4
6. Important Hints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-5
7. Cleaning, Disinfection and Sterilization . . . . . . . . . . . . . . . . . . . . . . . . . . .6-9
8. Trouble Shooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
9. Warranty, Service and Repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
1 10
1 Introduction
LUT endoscopes are for indicating visually body openings or cavities. Depending on
the cross-section, length and locking possibilities, each of the endoscopes is designed for a specific purpose in a particular field of medicine.
Indications: The use of LUT endoscopes is indicated in endoscopic procedures and
other incisions in the field of minimal invasive surgery.
Contra indications: The use of LUT endoscopes is contra-indicative to the extent
that endoscopic procedures are contra-indicative.
Attention: The instruction manual gives sound information about the correct use
and possible applications of the unit. Therefore the instruction manual
should always stay with the camera.
All persons who are handling those units should have read the
instruction carefully. The use of the units is only allowed after studying
the manual.
The instruction manual contains important information which is needed
to ensure a safe, a correct and an economic operation of these units.
Future technical changes are reserved to be changed compared
to current pictures.
This instruction manual is meant to facilitate the use of LUT endoscopes;
it is in no way an instruction manual for endoscopic procedures.
Please read all instructions and hints carefully . If the instructions, warnings and precautionary measures are not followed, this may lead to heavy risks and drastic consequences at the time of incision or injury to the patient.
Attention:
U.S. Federal law restricts this product to sale by or on the order of the physician.
2 Setup of Appliance
1a Flexible endoscope with air-exhaust valve
1b Flexible endoscope without air-exhaust valve
2 Diopter setting (focussing)
3 Light cable connection for ACMI/British Standard
(on opposite casing sides)
4 Lever for distortion (on/off)
5 Lens
6 Throw-over cover for light cable
7 Light cable
8 Light cable connection cover for ACMI cover
9 Light cable connection cover for light source
10 Density tester (optional)
1 Valve cap (optional)
12 Silicon tube (optional)
13 Air-exhaust valve (optional)
3 Key to the Symbols
Warning: indicates a hazard. If not avoided, the hazard can result
in death or serious injury.
Caution: indicates a potential hazard. If not avoided, this hazard may
result in minor personal injury or product/property damage.
CE-mark according to relevant EC directives
Safety standard BF according EN60601-1
Manufacturer
3 8
4 CE- Label
The CE-mark certifies that the product corresponds to the following directives:
Medical Devices
according to Medical Device Directive 93/42/EEC respectively Medical Device Law
(MPG).
Products for Industrial Applications
according to Low Voltage Directive 2006/95/EEC and/or
EMC-Directive 89/336/EEC respectively EMC-Law and/or
Machinery Directive 98/37/EEC.
5 Short Description
This short description is intended to give you a quick overview of the cleaning, disinfection and sterilization procedures for LUT endoscopes. Detailed instructions and
hints given in the operating instructions manual should be followed.
Before each medical use, LUT endoscopes should be checked to ensure that there
are no damages and that the endoscopes must be disinfected and cleaned as per
the medical indications.
5.1 Cleaning
The endoscope should immediately be cleaned manually or mechanically.
Before cleaning, remove the adapters (e.g. for different light cables). To dissolve
various impurities, use mild cleaning substances. Support this with a mechanical cleaning preferably by using soft white cloth, cotton and special brushes.
Finally, all parts are to be washed and rinsed thoroughly by extensively using deionised water and dried by using tissues or soft white cloth. Channels and hollow spaces should be dried and cleaned with compressed air.
Caution: Endoscopes should not be decontaminated and cleaned in an ultrasonic bath.
Caution: Do only use released disinfectant. Do not insert the endoscope in
alcohol.
5.2 Short testing
The endoscope surfaces must remain intact and should not have any sharp edges.
Ensure that the distal and proximal glass surfaces remain undamaged. Visually
inspect the picture quality.
5.3 Gas sterilization
Flexible LUT endoscopes with air-exhaust valve can be gas sterilized using ethyleneoxide or formaldehyd. For procedure parameters and instructions, please refer to
the details provided by the respective manufacturers.
5.4 Low temperature Plasma Sterilization
Flexible LUT endoscopes with air-exhaust valve can also be sterilized using the low
temperature plasma sterilization procedures STERRAD
®
50, STERRAD®100S and
STERRAD®200®. For procedure parameters and instructions, please refer to the
details provided by the respective manufacturers.
Note
It is the responsibility of the user to ensure that the sterilization procedures listed
above are used to attain the desired or required sterilization effect.
6 Important Hints
General Hints
You have decided in fa vor of a LUT endoscope; you have thus acquired a high-value
product. It is however necessary to handle this equipment with care because flexible
endoscopes are highly susceptible to bending pressure, tight wrapping, sudden
impacts as well as torsion, drawing or pressure strain. This can lead to damage to
the optical components resulting in malfunctioning of the equipment.
When accessories or additional components are used in conjunction with the medical
product, the unrestricted function of the medical product`s intended purpose must
be guaranteed. This needs to be varified by the operator before use.
Note
If there is light shining through the highly flexible, thin-walled probe tube, this is
due to the loss of sheathing taking place continuously in the case of light fibers. This
appearance in varying intensity has no effect on the illumination intensity at the tip
of the flexible endoscope.
LUT endoscopes are delivered unsterilized and have to be cleaned and sterilized as
per medical indications before they are put to use (for details refer the section on
Cleaning and Sterilization).
Caution: Endoscopes should not be decontaminated and cleaned in an ultrasonic bath.
Caution: Do only use released disinfectant. Do not insert the endoscope in
alcohol.
Endoscopic procedures should only be carried out by qualified professionals (e.g. doctors) with corresponding training and familiarity with endoscopic procedures. It is the
responsibility of the user to be continuously updated about indications, contra-indications, possible complications and risks as well as develoments of endoscopic procedures.
A thorough understanding of the principles and methods used in laser endoscopy
and electro-surgical procedures is necessary to avoid shock or lesion risks to
patients and users as well as damages toother equipment and instruments.
Claims for damages attributable to wrong use or combination with other devices and
instruments will not be borne by the manufacturer.
5 6
The endoscopes and corresponding endoscopic accessories must be checked for any
possible optical or mechanical defects before each use to avoid risks of injury.
Damaged or defective endoscopes should be put out of use. In case of doubt, please contact your dealer or the manufacturer.
The simultaneous use of NMR (Nuclear Magnetic Resonance) and endoscopes can
lead to dangers and artifacts; please pay attention to the corresponding manufacturer's guidelines and safety instructions.
Hints for combination with other medical products
There are numerous vistas opened for combinations with laser and HF surgery , pneumatic or electro-hydraulic lithotriptors. In such cases, please follow the operating
instructions manuals and safety instructions of devices and the accessories used.
While using the endoscope in combination with electro-medical devices, ensure that
the BF conditions (insulated, earth-free usage parts) are maintained.
When endoscopes are used with electro-medical devices and/or power-driven endoscopically used accessories, this can lead to an addition of the leakage current.
Failure of the used light source can lead to risks. Hence keep an additional light
source at hand or use light sources that have a substitute lamp.
In combination with high performance light sources, the temperatures of the light
source and the instruments can reach levels causing burns. Furthermore, light of
high radiance energy can lead to an increased temperature in the tissue. Hence,
avoid direct tissue contact and if possible, ensure adequate rinsing of the operation
area.
Hints for using endoscopes with high frequency surgical instruments
Before using endoscopic high frequency surgery, the patient should be suitably prepared for the incision. Measures should be taken to remove or avoid formation of
combustible gases.
In contrast to conventional high frequency surgery, unsuitable (especially too low)
performance setting can lead to a predominant depression in the surrounding tissue. Hence, performance tuning is to be done based on the experience of the person using this technique after considering clinical references and/or suitable training.
In order to avoid burns and/or undesirable depressions in the surrounding tissue or
damage to the endoscope, it is advisable to switch on the high frequency current
only after the application part (electrode) can be seen through the endoscope.
Hints for use in combination with laser devices
If endoscopes or endoscopic accessories are used with laser devices, suitable protection glasses are to be used to avoid damage to theeyes.
In order to avoid burns and/or undesirable depressions in the surrounding tissue,
laser performance should be activated only after the tip of the laser fiber can be seen
through the endoscope.
Hints for usage with lithotriptors
In order to avoid risks and taking into account all possible restrictions for use, please pay attention to the device specific operating instructions and safety hints for
all ultrasonic, pneumatic or mechanical lithotripsies.
Stone extractions using stone forceps can be done by using operation shafts or the
working channal of the endoscope. The required specifications of the instruments
usable can be taken from the technical specifications of the respective products.
7 Preparation (Disinfection, Cleaning, Sterilization)
7.1 Introduction
The procedures for preparation and maintenance listed in the following sections are
to be viewed as recommendations. LUT endoscopes with air-exhaust valve can also
be disinfected, cleaned and sterilized using other methods.
It is the responsibility of the user to prepare the endoscopes in order to attain the required degree of disinfection, cleaning and sterilization.
Please note that the method in which the endoscopes will be prepared will eventually have considerable bearing on the life-span of the endoscopes.
7.2 Dismantling, Dehumidification and Decontamination
In order to avoid drying up of blood, protein or other substances on the endoscopes
and also to protect the staff, visible impurities should be removed immediately after
the surgery using a soft cloth. It is necessary to dehumidify the endoscope immediately after it has been used for an operation. Dried up protein makes cleaning and
disinfection a difficult task.
Caution: Endoscopes should not be decontaminated and cleaned in an ultrasonic bath.
Caution: Do only use released disinfectant. Do not insert the endoscope in
alcohol.
Procedure
• Unscrew the used adapters (e.g. for different light cables) from the endoscope
(refer diagram 1).
• If the flexible endoscope has an air-exhaust valve, conduct a density test before
soaking it in any liquids. Conduct the following test:
Unscrew the valve cap, connect the silicon tube and using the pressure unit, set
up a pressure of 160 mm Hg. Wait for 30 seconds and observe the fall in pressure.
A fall in pressure of max. 2 mm Hg is normal.
• Place the endoscope and the unscrewed parts in a suitable disinfection solution
(can also double up as a cleaning solution). The disinfection solution used should
be permitted by the manufacturer for such use.
Material compatibility releases exist for the following disinfectants:
• Gigasept FF, Schülke & Mayr GmbH
• Lysetol FF
• Helipur HplusN, B. Braun Medical AG
• Cidex, Johnson & Johnson
• Please use one of the released disinfectants. These details are only with respect
to material compatibility and they are in no way related to the germ-killing properties. The user has to ensure that the degree of disinfection is attained.
• For concentration and soaking time, please refer the guidelines of the manufacturer of the disinfectant. As there are no advantages of soaking the equipment for a
period longer than prescribed, avoid soaking the endoscope for a period exceeding
the prescribed limit as it can perhaps only lead to damages to the endoscope.
Also ensure that the solution reaches all the surfaces including working channels
and hollow spaces.
7 4
• If it is necessary to use a separate cleaning agent, it is advisable to use the disinfectant and a cleaning additive from the same manufacturer. Also pay attention to
the mutual compatibility of the used solutions and strictly follow the instructions
of the manufacturer with respect to concentration and soaking time.
• Finally, the endoscopes must be rinsed with adequate deionised (distilled) water.
• If there is no possibility for dehumidification, the external layer of the flexible endoscope must be cleared of all impurities (secretions, etc.) This is best done by using
a disposable cloth soaked in disinfection solution or rinsing the flexible endoscope
carefully using a hand spray.
7.3 Cleaning
Cleaning is necessary for hygienic reasons and also for protecting the next patient.
Caution: Endoscopes should not be decontaminated and cleaned in an ultrasonic bath.
Caution: Do only use released disinfectant. Do not insert the endoscope in
alcohol.
• Unscrew the used adapters (e.g. for different light cables) from the endoscope
(refer diagram 1).
• If the flexible endoscope has an air-exhaust valve, conduct a density test before
soaking it in any liquids. Conduct the following test:
Unscrew the valve cap, connect the silicon tube and using the pressure unit, set
up a pressure of 160 mm Hg. Wait for 30 seconds and observe the fall in pressure.
A fall in pressure of max. 2 mm Hg is normal.
• Use only mild cleaning substances for dissolving the impurities. These cleaning
agents should have been approved by the manufacturer for such use. While using
the different substances, pay attention to the details provided by the manufacturer
with respect to concentration and soaking time.
• For mechanical cleaning, use soft cloth, cotton and special brushes. For channels
and hollow spaces, it is especially advisable to use suitable brushes.
• Dirt at the endoscope can be removed using cotton soaked in alcohol (70 % ethanol) or a neutral cleanser.
• After cleaning, all the parts are to be thoroughly washed using deionised (distilled)
water in order to remove the last traces of impurities and residues of cleaning agents.
• Finally dry the endoscope and all the individual accessories using a tissue or soft
absorbent cloth. Bridges and crevices should be cleaned and dried with compressed air.
• Unless an immediate sterilization is planned following the cleaning, it is advisable
to fit back the adapters that had been removed.
Tips for manual cleaning
The optical surfaces should not be treated using sharp-edged objects. Generally,
endoscopes should be cleaned with maximum care to avoid damage through use of
excessive pressure, impact, bending or fall.
Color eloxated endoscopy parts or the plastic components (e.g. serial rings, ocular
funnel) may fade and lose their color intensity in the course of cleaning.
7.4 Inspection
The endoscope must be inspected directly before sterilization.
Density Test (for endoscopes with air-exhaust valve)
• Unscrew the valve cap, connect the silicon tube and using the pressure unit, set
up a pressure of 160 mm Hg. Wait for 30 seconds and observe the fall in pressure.
A fall in pressure of max. 2 mm Hg is normal.
Checking the fiber optic
• Hold one side of the fiber optic (e.g. the distal endoscope end) in the direction of
a bright ceiling lamp. For this test, do not use any cold light source. View the other
side (light connection) holding it relatively close to the eye. The individual fibers
now appear to be bright. Move the side held against the lamp a little here and
there. The brightness of the fibers now changes a little. If certain fibers remain
dark, this is not a cause for concern. If the rupture rate is 10 - 20 %, then it is
difficult to work with the endoscope.
Note
If there is light shining through the highly flexible, thin-walled probe tube, this is
due to the loss of sheathing taking place continuously in the case of light fibers. This
appearance in varying intensity has no effect on the illumination intensity at the tip
of the flexible endoscope.
• The surfaces of the light inlets and outlets should be smooth and clean. If the surfaces show certain deposit layers, or rough fibers can be felt or are withdrawn, this
can lead to inadequate illumination. If the endoscope is used or prepared in this
condition, it may be continuously damaged.
Caution: Endoscopes with damaged fiber optic should be sent for inspection
to the manufacturer or a service center.
Checking the proximal and distal glass surfaces of the endoscope surface
• The glass surfaces must be clean and free from deposit layers. If at the time of
visual inspection of the glass covers you notice stubborn encrusting, these can be
removed using appropriate cleaning pastes. The cause of these precipitations is
often inadequate rinsing of the optics after cleaning and disinfection procedures.
• The image must be sharp and clear in the corresponding working distance as per
the indication. The special optical properties in case of image bundle endoscopes
are to be considered. A dull, dusky image is a pointer to damages.
• The endoscope surfaces must be free of damage and sharp edges. Pay attention
to dents, mechanical/thermal defects due to high frequency or laser surgery instruments as well as cracks and spallings at the ocular eye cup.
Caution: If stubborn residues cannot be removed by cleaning, the endoscope
must be sent to the manufacturer or a service center for inspection.
Endoscopes with damaged glass surfaces (e.g. cracks), impaired image quality
or noticeable surface damages or distortions should not be used. They should
be kept aside and sent for inspection to the manufacturer or an authorized
service center.
9 2
7.5 Sterilization
First check the sterilization method most suitable for your flexible endoscope. Please
note that flexible endoscopes cannot be autoclaved.
Before sterilization, ensure that the endoscope and especially the surfaces are clean
and a testing of the endoscope as per point 7.4 does not lead to any findings that
impose restrictions on the use.
It is the responsibility of the user to ensure that the sterilization procedures listed
above are used to attain the desired or required sterilization effect.
Gas sterilization
Flexible LUT endoscopes with air-exhaust valve can also be gas sterilized using
ethyleneoxide or formaldehyd. For procedure parameters and instructions, please
refer to the details provided by the respective manufaturers.
Low temperature Plasma Sterilization
Flexible LUT endoscopes with air-exhaust valve can also be sterilized using the
low temperature plasma sterilization procedures STERRAD®50, STERRAD®100S and
STERRAD®200®. For procedure parameters and instructions, please refer to the
details provided by the respective manufacturers.
TPA024-020-0606-01_A
LUT GmbH
Robert - Bosch - Straße 3
D - 79211 Denzlingen
Tel.: +49 (0) 76 66 - 9 00 69-0
Fax: +49 (0) 76 66 - 9 00 69-480
E-Mail info@lut-gmbh.de
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