Schulze & Bohm medisun HF 54 User manual

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Instructions for Use
medisun HF 54
UV-phototherapy device for hand / foot treatment


UVA broadband
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
UVB-311 nm narrowband
Manufacturer:
Schulze & Böhm GmbH
Hermülheimer Str. 10
50321 Brühl
Germany
Telefon : +49-2232 – 57998-0
Fax : +49-2232 – 57998-11
E-Mail: [email protected]
0197

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Inhaltsverzeichnis 2
1. General information 3
2. Important information 3
3. Application 5
4. The Exposure Sequence 6
5. Electronic Timer Operation 6
6. Maintenance 7
7. Lamp Replacement 7
8. Care 7
9. Warrenty 8
10. Technical Specifications 9
11. Notes on Exposure Times / Intesities 10
Appendix:
Dosage / Time - Table
CE-Declaration of Conformity

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1. General Information
•Immediately on delivery, inspect your unit for any shipping damage which may have
occurred. Should you find damage, please contact your dealer and provide him with
the shipping documents and / or purchase receipt.
•Please read these instructions carefully prior to installing or operating your unit.
•Check all screws and nuts regularly to ensure they are secure.
•Always unplug the unit from the mains power outlet during maintenance and
cleaning, as well as when the unit is not in use.
•Repairs may only be performed by an approved and authorized service facility.
•Use a moist cloth and a mild (not aggressive) household detergent to clean the unit’s
exterior surfaces. Make sure no water enters the unit during cleaning. Do not use
disinfectants or similar agents. Use an antistatic cloth to occasionally clean the UV
lamps.
2. Important Information
•The unit may only be set up in a dry room and must be protected against spraying or
dripping water. At a maximum permissible ambient temperature of 28°C, the relative
humidity in the room may not exceed 70%. A higher room temperature will also result
in a higher temperature under the unit.
•Structural measures must ensure that no saline humidity or condensation water can
enter the irradiation area, as this would result in corrosion.
•Certain objects and materials which can fade under the influence of UV light (e.g.,
paintings) should not be exposed to the unit’s UV radiation for extended periods of
time.
•Children may only be treated under adult supervision and with the express
instructions of their physician.
•Do not drape towels or other items on the unit
•Do not load the acrylic protection panel with more than 15 kg.
•Prior to each use, examine the acrylic protective panel and the UV lamp for any
damage. Never operate the unit if the lamp is faulty or the protective panel is
damaged!
•In case of faults or damage, immediately take the unit out of service and contact the
responsible customer service representative.
•The protective glasses (article-no. 2274) provided must be worn during any exposure.

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•Prior to commencing a series of therapeutic treatments, a test exposure on a small
area of skin should be carried out in order to detect any possible incompatibilities or
adverse reactions (e.g., polymorphous light dermatosis).
•UV treatments may only be carried out under the supervision of a dermatologist. Prior
to the start of treatment, the dermatologist must determine the indicated UV spectrum
and proper treatment dosage for the individual series.
•Severe reactions to UV treatment may occur in patients with certain illnesses or those
who are taking certain medications such as antibiotics, psycho-pharmaceuticals,
diuretics, etc. Always consult your physician in cases of uncertainty.
•Never attempt to treat problems or illnesses with UV radiation yourself.
•Intensive or extensive exposure to radiation can result in acute and/or chronic eye
and skin damage.
•During exposure, always protect your eyes with the provided safety glasses.
•Excessive exposure can result in premature aging of the skin as well as an increased
risk of skin tumors.
•Immediately contact your physician if you develop a severe sunburn, persistent
swelling, sores, or pigmented moles on your skin.
•Cosmetics can increase the skin’s light sensitivity and also result in allergic reactions.
Therefore, always remove all cosmetics prior to treatment.
•Do not use any type of sun protection.
•Please use the external timer to avoid overdosing in case of damage of the internal
timer. You must set the second timer with the same exposure time.
•The UV device may only be operated with OEM spare or replacement components.
Components not provided by the manufacturer may only be installed with the
manufacturer’s express, written authorization. If third-party components are installed
without the manufacturer’s knowledge or consent, the manufacturer is released from
any and all liabilities and warranties for any faults or consequential damages.

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4. Application
The medisun HF-54 is used for therapeutic ultraviolet light exposure of hand and
foot. It was developed for treatment of psoriasis atopic dermatosis and other uv-
sensitive indications.
The unit has a user-friendly timer control system, which makes it possible to
input doses in minutes and seconds.
Depending on the lamp arrangement, the unit has a UVB-311nm spectrum, a
UVA spectrum or a combination of the two.
medisun HF-54 UVA
1 UVA-lamp of 36 watts with special designed reflector
medisun HF-54 UVB-311 nm
1 UVB-narrowband lamp of 36 watts with special designed reflector
It is assumed that the doctor responsible has the appropriate knowledge and
experience of dermatological light therapy. In addition we recommend the
following literature as a supplement: ....
Phototherapie und Photodiagnostik
(Hrsg.: J.Krutmann, H.Hönigsmann)
Springer Verlag
Before the beginning of a light therapy series, a test exposure should be carried
out on a small area of skin (e.g. 2 x 2 cm) by means of a template, in order to
exclude a polymorphic light dermatosis or other intolerance.
5. The exposure sequence
The appropriate radiation dose must be laid down only by the doctor responsible.
The patient puts on the protective UV glasses and for exposure he lays his hand
or feet on the acrylic protection panel. Once everything has been correctly input
and the operator has made certain that the correct patient is sitting at the device,
exposure is started by the operator. The exposure time runs counting backwards.
The lamps are automatically switched off at the end or the exposure. Then the
HF-54 is immediately ready for operation again.

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6. Electronic Timer Operation
The electronic timer allows the UV flood lamp to be operated with a precision
down to the second.
Setting the time:
Briefly press the “+” key (14).
The time is set in 1-second intervals each time you press the key.
Press and hold down the “+” key for more than three seconds. This starts a
continuous and rapid increase in the displayed time value. Once the display
indicates the desired time, simply release the “+” key. If you accidentally set too
long an exposure time by this method, you can reduce the selected time by
pressing the “-” key (12).
Starting the timer
Press the “MODE” key (13). The lamps are switched on and the time display
begins running down. The colon separator character on the timer display begins
flashing.
The end of exposure
Once the pre-selected exposure time has expired, the timer switches the lamps
off and emits a brief series of audible signals (for a maximum of 15 seconds).
The display stops at 0:00, and the colon separator character no longer flashes.
Press the “MODE” key to switch the audible signal off. The previously selected
exposure time reappears on the display (this is a repeat function). If you press
the “MODE” key again, the exposure time begins running again.

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7. Maintenance
In order to ensure safety and a problem-free operation, the UV flood lamp should
undergo regular service by a customer service facility authorized by ourselves.
Aside from inspecting the technical equipment, the lamp intensity is also
calibrated and a new exposure chart is created. This maintenance should be
performed at least every two years or after every 400 hours of operation,
whichever comes first.
8. Lamp replacement
The UV lamp may only be replaced by a trained service technician.
Always unplug the unit from the wall outlet prior to beginning any
maintenance tasks!
To replace the lamp, the protective screens must first be unscrewed. Only OEM
lamps and lamp starter ballasts may be used in order to maintain the unit’s
operating specifications. The UV device must be recalibrated after every lamp
replacement. The UVA or UVB tube are inserted into its socket. When replacing
a lamp, replace the starter as well.
Important safety information:
Care must be taken to ensure that the UVA and UVB lamps are not
interchanged, as exposure at an incorrect spectrum could result in the
patient being burned!
9. Care
The UV device should be regularly cleaned as follows.
Description Interval Cleaning means
Outer device casing every 1-5 days Damp cloth
Acrylic protection panels as required Only special acrylic cleanser
During all cleaning work the mains supply is to be disconnected for safety
reasons !
Cleaning of the outer casing:
For cleaning, a damp cloth or a cloth impregnated with plastic cleanser is to be
used. No water may run into the appliance. Do not use any cleansers which
attack the plastic coating.
Cleaning of the acrylic protection panels
The acrylic protection panel is as a rule only cleaned from the outside, where
fingerprints and other residues become visible.
The panels should therefore be cleaned regularly, so that the quality of the
radiation spectrum does not change considerably.

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10. Warranty
The agreement reached with your supplier applies with respect to the warranty.
As a rule, consumables, e.g., the UV lamps are not covered by the warranty.
Liability on the part of the manufacturer
The manufacturer is only liable for the safety, reliability, and performance of the
unit if:
- The installation, any alterations, repairs, and other necessary measures are
performed by the manufacturer or an individual authorized by the
manufacturer to perform these tasks.
- The unit is operated and handled by specialist personnel or by the
manufacturer or by authorized personnel trained by the manufacturer, and
the unit is employed in compliance with the operating instructions and with
the accessory equipment recommended by the manufacturer.
- The electrical installation in the room in which the unit is set up complies with
the requirements in accordance with VDE 0100 or 107.
- No alterations which would void the EG Conformity Declaration have been
carried out.

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11. Technical Data:
HF-54 UVA
Capacity 50 watts
Lamp configuration 1 UVA-low pressure lamps 36 watts
Spectral range UVA: 315 - 400 nm
Dosage power (Average) Look at dosage-time-table
Weight Approx. 6 Kg
Power Supply 230 V – 50 Hz
Fuse protection 1 A
HF-54 UVB-311nm narrowband
Capacity 50 watts
Lamp configuration 1 UVB 311nm TL/01-lamps 36 watts
Spectral range UVB: 310 – 315 nm
Dosage power (Average) Look at dosage-time-table
Weight Approx 6 Kg
Power Supply 230 V – 50 Hz
Fuse protection 1 A
Technical changes reserved.
Products marked with the WEEE disposal symbol require professional disposal and
are not to be disposed of in residual waste. Please dispose of all WEEE marked
products at local waste facilities that are set up to handle the return and collection of
electric and electronic equipment.
More information is available at your public waste disposal authority

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12. Notes on Exposure Times / Intensities
The treating physician is responsible for determining the individually required
exposure times/intensities (dosage). The following is merely intended to provide
you with some information and an example of a therapeutic treatment plan.
Deviations are, however, permitted at your discretion. The basic dosage should
always be selected so that exposure remains below the erythematic limit
(sunburn limit). It is for this reason that – particularly with regard to UVB
treatment – we recommend performing a series of exposures on a small area of
skin (approx. 1.5 x 1.5 cm) in order to determine the dosage at which the
patient’s erythematic limit is reached. For this test, adjacent areas of skin are
shielded with an appropriate cover. The patient’s tolerance of the selected
dosage can then be determined by the reaction of the exposed area after 24
hours. The 311 nm lamps provide good to excellent effectiveness starting at
between 60 % to 100 % of the MED (Minimal Erythematic Dosage), so that
dosages up to the erythematic limit are not required. Prior to the start of every
exposure, the patient’s tolerance of the previous treatment must be examined. If
skin reddening is still apparent after 24 hours, neither the intensity nor the
exposure time may be increased under any circumstances. If the patient
tolerated the treatment well and there are no signs of reddening, we recommend
increasing the dosage by one level in accordance with the chart.
Prior to treatment, patients should request their treating physician provide them
with information regarding the safety measures and possible side-effects.
Incorrect or negligent behaviour can result in sunburn.

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Dosage examples:
UVB-311- phototherapy
Skintype 1 and 2
1. Day 50 mJ
2. Day 100 mJ
3. Day 150 mJ
4. Day 200 mJ
5. Day 250 mJ
6. Day 300 mJ
7. Day 350 mJ
8. Day 400 mJ
Further increase of dosage only if
the last exposure was well tolerated
Skintype 3 and 4
1. Day 100 mJ
2. Day 200 mJ
3. Day 300 mJ
4. Day 400 mJ
5. Day 500 mJ
6. Day 600 mJ
7. Day 700 mJ
8. Day 800 mJ
Further increase of dosage only if
the last exposure was well tolerated
For PUVA therapy you will get the dose scheme by your doctor!
UVA- phototherapy
Skintype 1 and 2 UVA-p
1. treatment day 0,5 J
2. treatment day 1,0 J
3. treatment day 1,5 J
4. treatment day 2,0 J
5. treatment day 2,5 J
6. treatment day 3,0 J
7. treatment day 3,5 J
8. treatment day 4,0 J
Further increase of dosage only if
the last exposure was well tolerated
Skintype 3 and 4 UVA-p
1. treatment day 1,0 J
2. treatment day 2,0 J
3. treatment day 3,0 J
4. treatment day 4,0 J
5. treatment day 5,0 J
6. treatment day 6,0 J
7. treatment day 7,0 J
8. treatment day 8,0 J
Further increase of dosage only if
the last exposure was well tolerated