Hidrex DP450 User manual

DP450
Tap Water Iontophoresis (TWI)
System
User Manual
(Included and optional accessories not shown)

DP
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0 Tap Water Iontophoresis System User Manual
Rev. 1.4 / 02-16-2017
Table of Contents
Table of Contents
Read Before Use 3
Your Safety is Important 3
Contraindications 4
Side Effects 4
Additional Important Safety Considerations 4
Intended Use / Mechanism of Action 5
Treatment Fundamentals 6
Polarity Reversal and the Efficacy of Treatments 6
Types of Current 7
System Components 8
Standard Accessories 9
Optional Accessories 8
Control Unit Side & Rear Panel Elements 9
Control Unit Front Panel Elements 10
Installation / Treatment Setup 11
Setup for Hands and Feet Treatment 11
Setup for Axillary (Armpits) Treatment 12
Conducting Treatments 1
Primary Parameter Setup (Setup Mode) 13
Begin Treatment (Programming Mode) 15
Important Advice for Conducting Treatments 17
Care and Maintenance 18
Special Remark 18
Multi-Patient Use 18
Care and Purification 19
Disinfection 20
Reconditioning 21
Troubleshooting 1
Error Checklist 21
Operational Check 21
Shipping the Device for Repair or Maintenance 22
Applicable Regulations and Legal Requirements
Symbol Legend / Manufacturer / Device Identification 23
Lifespan 23
Electromagnetic Compatibility 24
Waste Management and Packaging of Electronic Devices 26
Technical Data 6
Distribution/Trading 8

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Read Before Use
Your HIDREX tap water io tophoresis device was desig ed to maximize
fu ctio ality a d usability. System setup is easy, a d the device is simple to
operate. This ma ual is i te ded to guide you through setup a d programmi g,
familiarize you with the system’s features, a d offer hi ts o the use of your ew
therapy system.
Your Safety is Important
 This treatme t system may o ly be powered by the HIDREX AC power
adapter (which ca be ide tified by a HIDREX ameplate with Serial-
No.). This power supply is especially desig ed for this device.
 I order to preve t bur s duri g treatme t, make sure the supplied tow-
els or pads cover the treatme t electrodes at all times. Avoid direct co -
tact with the metallic surface.
 Two devices may ot be simulta eously used by o e patie t.
 Prior to treatme t, remove a y metallic jewelry (weddi g ba ds, etc.)
which would otherwise come i co tact with the water source (trays or
pads). Keepi g such accessories o would lead to localized mi or (elec-
trical) bur s that are seco dary to i creased curre t de sities.
 Avoid applicatio of curre t i excess of that which ca be safely a d
comfortably tolerated by the patie t. Always treat carefully a d observe
patie t reactio .
(As a rule, avoid curre t i te sity greater tha 0.5-1.0 milliamperes per
square i ch of active electrode area.)
 The lo g term effects of chro ic electrical stimulatio have ot bee es-
tablished.
 Keep this device out of the reach of childre .
 Cautio : U.S. Federal law restricts this device to sale by or o the order
of a physicia .
 WARNING: Pote tial systemic adverse effects may result from use of
this device. Drugs or solutio s delivered with this device have the pote -
tial to reach the blood stream a d cause systemic effects. Carefully read
all labeli g of the drug or solutio used with this device to u dersta d all
pote tial adverse effects a d to e sure appropriate dosi g i formatio .
If systemic ma ifestatio s occur, refer to the drug or solutio labeli g for
appropriate actio .

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Contraindications
The following conditions are considered contraindications for
iontophoresis, so treatment should not be administered unless otherwise
directed by your physician:
 Patie t with a cardiac pacemaker;
 Patie t with a ICD (impla table cardioverter/defibrillator);
 Preg a cy;
 Patie t with a metal-co tai i g i trauteri e device (IUD);
 Metallic impla ts withi the curre t path (arm or leg);
 Large ski defects/wou ds that ca ot be covered with petroleum jelly;
 Patie ts with impaired se sibility i their ha ds or feet (e.g. patie ts with
poly europathies);
 Pote tially malig a t lesio s, acute localized i fectio s, ski eruptio s,
or swolle , broke , or i flamed areas;
 A y area where se satio is abse t or impaired;
 Apply electrical curre t through or across the chest, brai , or si uses;
 Patie ts with suspected or diag osed heart problems or epilepsy.
Side Effects
Possible side effects or results of usi g this device i clude:
 Mild dysesthesia (ti gli g or bur i g)
 Short-term ski irritatio (redde i g) after treatme t
 Erythema (ski red ess, tra sie t vesicles or blisters)
 Ski irritatio or bur s at the areas of electrode co tact have bee re-
ported with the use of electrical stimulators.
Additional Important Safety Considerations
⌦ Place the device o a firm level surface.
⌦ Make sure that the device is at room temperature before you power it
up.
⌦ You may remove the treatme t area from the water source at a y time,
but it is advisable to lower the dose to zero before you do so. I rare
cases, safe but u comfortable electric shocks
1
may result if the dose is
ot reduced.
⌦ The system should ot be operated i the vici ity of shortwave or
microwave medical diathermy devices. A mi imum dista ce of 2
meters should be kept at all times.
1
These electric shocks are defi itely u comfortable, but harmless.

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⌦ Prior to usi g AC wall power, check that your outlet meets the system’s
requireme ts of 110-230 V~ a d 50-60 Hz.
⌦ U plug the AC power adapter if a thu derstorm approaches or if you do
ot i te d to use the system for a exte ded period of time.
⌦ This device should o ly be used i doors. Do ot expose the device to
rai or excessive moisture.
⌦ Do ot use kerose e, thi er, alcohol, wax remover or a y other
solve ts.
⌦ Prior to clea i g the device, tur off the device a d u plug all
co ectors. For clea i g, use a soft cloth moiste ed with a mild
clea i g age t.
⌦ Preve t ki ki g of the cable a d do ot expose the cable to heat or
chemicals. If the cable is damaged, u plug it from the device a d have it
checked by a authorized HIDREX repair ce ter.
⌦ Never ope the device; there are o co trol eleme ts i side. The
system may o ly be serviced by a authorized HIDREX repair ce ter.
⌦ Wash the supplied towels o a regular basis together with your regular
lau dry (make sure to comply with the lau dry i structio s o the tag).
Intended Use / Mechanism of Action
Intended Use:
This tap water io tophoresis device is i te ded to treat
hyperhidrosis
1
(excessive sweati g) affecti g ha ds, feet a d
u derarms.
A y other use or usage beyo d this scope is co sidered u -
i te ded use a d may have da gerous co seque ces.
Mechanism of Action:
Duri g the HIDREX treatme t, a curre t flows through the body regio s that
are bei g treated. The water i the trays or pads mediates this curre t flow.
The ski areas i co tact with the water will thereby secrete less sweat.
Although treatme t success has bee validated i umerous medical stud-
ies, there is still o completely satisfactory scie tific expla atio for the
mecha ism of actio . Medical researchers believe that the electrical curre t
irritates the sy apses betwee sweat-i duci g erves a d sweat gla ds to
such a exte t that sweat gla ds ca o lo ger be stimulated. I other
words: the treatme t does ot affect the sweat gla ds directly, it o ly affects
the ervous i put to these gla ds.
This effect explains why the original condition returns relatively quick-
ly when the treatment is discontinued.
1
Additio al i dicatio s i clude: Dyshidrotic dermatitis, palmopla tar pustolosis a d acrocy osis.

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The treatme t curre t ca be adjusted accordi g to your i dividual se sitivity.
There is o risk i volved as the curre t ca ot exceed certai maximum values.
Treatment Fundamentals
The HIDREX treatme t co cept comprises two treatme t phases:
Phase 1: The i itial phase (therapy i itiatio ) is sometimes co ducted
u der a doctor‘s supervisio . Duri g this stage, patie ts lear to
admi ister treatme ts. For therapy i itiatio , at least three weekly
treatme ts of approximately 15 mi utes each should be
scheduled ( ot more tha o e treatme t per day). Sweat
secretio will ormalize after approximately 10 treatme ts.
Phase 2: Lo g-term treatme t (mai te a ce therapy) is ecessary
because the HIDREX treatme t effect is reversible. Depe di g
o the severity of the co ditio , mai te a ce therapy i volves
o e to three weekly sessio s of approximately 15 mi utes each.
Polarity Reversal and the Efficacy of Treatments
It has bee cli ically docume ted that the area bei g treated with the a ode (the
electrode that is attached to the red/positive cable) will produce slightly better
results i itially tha the area bei g treated with the cathode (the electrode that is
attached to the black/positive cable).
It is recomme ded to co duct all treatme ts i the i itial treatme t phase (Phase
1) without cha gi g polarity u til o e side reaches a acceptable dry ess level.
O ce ormal or acceptable dry ess has occurred i o e side of the treatme t
area (for example, right ha d), the it is advisable to reverse polarity a d co ti -
ue the i itial phase without cha gi g polarity up to ormal or acceptable dry ess
has occurred i the other side of the treatme t area (for example, left ha d).
O ce ormal or acceptable dry ess has occurred i both sides of the treatme t
area (for example, both ha ds), the it is advisable to reverse polarity for each
treatme t duri g the mai te a ce phase (Phase 2).
Polarity is reversed simply by cha gi g which side of the treatme t area is treat-
ed by the a ode or cathode (the electrodes with the red or black cable, respec-
tively).
For example, o the first treatme t i the mai te a ce phase, if the right ha d
was treated with the a ode a d the left ha d was treated with the cathode, the
o the ext treatme t, the right ha d would be treated with the cathode, a d the
left ha d would be treated with the a ode. This seque ce would co ti ue for
every treatme t.
Remark: Failure to do this does ot cause a y harm or side effects, rather
results i o ly a slight loss of efficacy. Lo g-term treatme t re-
sults do ot depe d o the directio of curre t flow.

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O ly i the begi i g of the i itial phase (Phase 1), the a ode
(red cable) is slightly more effective tha the cathode (black
cable).
Hint: It is recomme ded NOT to reverse polarity withi a y give treat-
me t sessio .
Types of Current
The DP450 has several optio s for the type of curre t used duri g treatme t:
- DC: Direct Curre t (sta dard)
- PC: Pulsed Curre t
PC is recomme ded as a optio for treatme t of u derarms, or treatme ts
where the ski is more se sitive, or for the treatme t of childre .
Direct Current (DC):
I DC, the curre t (voltage) is bei g tra smitted 100% of the time.
DC is the sta dard curre t of the device, a d is the most efficie t method of tap
water io tophoresis treatme t available.
Due to user comfort prefere ces, this device gives the user the optio to choose
PC as a alter ative.
Pulsed Current (PC):
I PC, the curre t alter ates its tra smissio betwee ON (the pulse) a d OFF
(the pause) for equal le gths of time. The pulse a d the pause are the same
duratio
1
(equivale t to a pulse-width of 50).
PC ca be practically imperceptible at certai voltages a d allows a better com-
fort level, but is typically slightly less effective.
Hint: O ce selected for the treatme t sessio , the pulse-width will remai the
same throughout the sessio . If the user desires to cha ge the pulse-
width for better comfort or more efficie cy, the the treatme t must be
stopped. Power must be cycled o the device to retur to Setup Mode
to cha ge the pulse-width.
1
for example, 50 microseco ds ON a d the 50 microseco ds OFF, a d the the cycle repeats

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Fig.: DP450
System Components
Your HIDREX therapy system is com-
prised of a co trol u it a d the accessories
explai ed i the followi g sectio s.
Standard Accessories
Optional Accessories
➱
Ergo omic treatme t trays
✃ Axillary Treatme t Kit
1
1
Axillary Treatme t Kit i cludes a pair of small electrodes (AX electrodes) a d a pair of pads (each
pad co sists of a spo ge cushio with a leather cover)
AC
A
dapter
➴
➷
✃
➱
➘ Hard Shell Case
➴ 2 treatme t electrodes (covered i the picture)
➷
2 towels
➮
➬
Cable Set
➘

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Control Unit Side & Rear Panel Elements
1 Co trol u it mai ON/OFF switch (mai power switch)
2 Jacks for co ecti g the cable set to the treatme t electrodes
4 Co ector for AC adapter (12V DC)
12V DC
+
4
2
1

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Control Unit Front Panel Elements
 Programming Mode: Lower dose
Setup Mode: Co firm setti gs a d exit to the e ter Programmi g Mode
 Programming Mode: Increase dose
Setup Mode : Select type of curre t (pulsed or direct)
 Programming Mode: Decrease time
 Programming Mode: Increase time
Setup Mode (Select Profile)
 I dicates Profile (preset) has bee selected
 I dicates Pulsed Current has bee selected
 Active – i dicates that circuit is complete a d device is active

Butto : Dose +
[Setup: select curre t]

Butto : Dose –
[Setup: co firm
setti gs
a d exit
]

Butto : Time + [Set-
up: select Profile]
 Butto : Time –

Mai Display

LED: Pulsed Curre t

LED: Active

LED: Profile

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Installation / Treatment Setup
The followi g steps describe how you set up your therapy system for a treatme t
sessio . Please ote that the setup for treati g ha ds or feet is slightly differe t
from the setup required for treati g ha ds a d feet simulta eously or for treati g
the u derarms.
Setup for Hands and Feet Treatment
1) Place the device o a firm, level surface. Make sure a electrical outlet is
withi reach.
2) I sert the AC adapter cable➮ i to jack 4 o the rear pa el a d plug the
adapter i to a AC wall outlet.
3) Plug the color-coded co ectors of the cable set➬ i to the jacks 2 o the
back pa el, to their matchi g colors.
4) Push the red a d black termi als of the cable set➬ firmly o to the respec-
tive co ectors o the treatme t electrodes ➴. Make absolutely sure to
forcefully push the connectors all the way onto the necks of the
treatment electrodes.
5) Place o e treatme t electrode➴ i each hard shell case
1
➘, or i each
ergo omic treatme t tray➱, respectively. Whe usi g the ergo omic
treatme t trays➱, make sure the slopi g rims poi t toward you – this will
facilitate ha d immersio a d i crease comfort.
6) Completely cover the lo g part of each treatme t electrode➴ with a tow-
el➷.
7) Fill both hard shell cases or
treatme t trays with warm
tap water so that the ski ar-
eas to be treated ca be
easily immersed. (It is rec-
omme ded to fill the trays
with just e ough water to
treat the ski areas requiri g
treatme t so that you get the
most efficie t treatme t pos-
sible. Filli g a y higher is
u ecessary a d may result
i a slightly less efficie t
treatme t.)
1
The two basi s of the case ca easily be separated by pushi g the left side away from you while
pulli g the right side toward you. The case must be completely ope (lyi g flat) before attempti g to
separate the sides.
case tray➘
towel➷
electrode➴

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Remark: O e or both of the alumi um electrodes may discolor after several
treatme ts. This is completely ormal, a d will ot affect the efficacy
of the treatme t.
Setup for Axillary (Armpits)Treatment
The setup for axillary treatme t is similar to the setup for ha d or feet treat-
me t, except that axillary treatme t requires the Axillary Treatme t Kit✃
i stead of trays.
Proceed with steps 1 to 4 of the i structio s o the previous page.
Thoroughly soak the axillary pads (spo ges with leather covers)❐ with ha d
warm tap water. At this time, i sert the AX electrodes❒
Hint: Do not squeeze any water from the pads!
Subdivide every axillary treatme t i to two sessio s of 7 mi utes
each, i order to re-soak the axillary pads.
Conducting Treatments
For your comfort, please observe the following two instructions before
you begin a treatment session:
1) BEFORE you start a treatme t sessio a d close the electrical curre t
circuit with your ha ds, feet or u derarms, make sure to FIRST tur ON
the mai power switch1. If this seque ce is reversed, there is also a
cha ce that you receive a completely harmless, but u comfortable,
electric shock!
2) Whe co ducti g a treatme t, avoid removi g your ha ds or feet from
the water or removi g the Axillary Treatme t Kit from your u derarms.
If you ig ore this advice, you ru a very small risk of feeli g a complete-
ly harmless, but u comfortable, electric shock. Although the HIDREX
system comes equipped with a feature called A ti Shock Electro ics
(ASE©) desig ed to permit curre t flow i terruptio , there is a very
small cha ce of this shock occurri g due to various other circumsta c-
es.
➬
❒ ❒
❐
❐
✃ Assembled Axillary
Treatment Kit

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Primary Parameter Setup (Setup Mode)
Before you i itiate a treatme t sessio , you ca choose betwee various
optio s depe di g o the area you wa t to treat. The followi g describes
how to select a d store these parameters:
1) After setti g up your HIDREX therapy system i accorda ce with the
i structio s i the “I stallatio ” chapter, tur o the co trol u it by
pushi g the mai power switch 1.
First, the mai display  will
briefly show three movi g bars
for about 5 seco ds (self-test
of the device).
Next, the followi g text “SEt” is
show a d i dicates the device
is i Setup Mode.
The selected optio s are i di-
cated by the LED  a d LED
 duri g Setup Mode a d dur-
i g treatme t also.
Important: If o butto is pressed withi 6 seco ds, the device will au-
tomatically switch from Setup Mode to Programmi g Mode.
Hi t: Whe the device automatically switches to Programmi g Mode, the
setti gs that were used o the last treatme t sessio (or factory presets
if the device was ever used before) will automatically be used.
For example, if the last treatme t had a pulsed curre t, a dosage of 18
volts, a d a duratio of 10 mi utes, the these setti gs would be stored
a d used agai u til cha ged.
2) While i Setup Mode, activate or deactivate the optio s as desired
1
:
Option Function Symbol
Butto

Profile:
If PROFILE is active, the most
rece t “time” a d “dose” setti gs
will be saved; if i active, the sys-
tem is i ma ual mode a d will
retur to factory preset whe
tur ed back o .
LED  ON = active
1
Adjust the system i accorda ce with your doctor’s i structio s.

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Butto

Pulse:
Whe PULSE is active, pulsed
curre t is used i stead of direct
curre t.
LED  ON = pulsed curre t
LED  OFF = direct curre t
Butto

ENTER key
Is used to go directly i to Program-
mi g Mode without waiti g for 6
seco ds.
Important: The Setup Mode is accessible o ly directly after switchi g
o the device. If you leave the Setup Mode, you must tur
off the device briefly a d the tur it o agai i order to
access Setup Mode a d alter the above treatme t optio s.
In the factory, your DP450 is pre-set as follows:
Below are some recommendations for initial treatment, although most
users increase the voltage as they get more comfortable with the de-
vice. Each user should experiment to see what works for them and
how the treatment feels. It is recommended to increase the voltage as
it can be tolerated.
Pulsed Curre t: OFF
Time: 15 mi utes
Dose: 4 Volts
Treatment area Treatment parameter
HAND
Pulsed Curre t ON
Time: 15 mi utes
Dose: 20 Volts
FEET
Pulsed Curre t: OFF
Time: 15 mi utes
Dose: 30 Volts
Axillary (underarms)
Pulsed Curre t : ON
Time: 15 mi utes
Dose: 8 Volts

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I order to avoid ski irritatio by excessive dose setti gs i
pulsed mode (where curre t flow is practically imperceptible), we
recomme d that you assess your i dividual direct curre t thres-
holds for ha ds, feet, or armpits before you start the first treat-
me t sessio . To co duct axillary treatme ts, as a rule the dose should ot
be raised above 15 volts, because the se sitive ski may otherwise get
bur t.
Begin Treatment (Programming Mode)
After completio of the i itial setup, the u it will automatically switch to Pro-
grammi g Mode after about 6 seco ds or whe the ENTER butto  is
pressed. The i te ded treatme t time a d dose will be displayed, based o
Profile or ma ual mode. Before you start the actual treatme t sessio , you
eed to check a d/or set the “time” a d “dose” treatme t parameters.
1) Setting treatment parameters:
If Profile has bee selected, the device uses the saved treatme t parame-
ters
1
. If the device is i ma ual mode, it will retur to factory presets whe
tur ed back o .
The umbers i the left wi dow TIME DO E
show the selected treatme t
duratio i mi utes a d the
umbers i the right wi dow
show the selected treatme t
dose i volts.
Select the desired treatme t
dose
2
with butto s  a d
, a d the desired treat-
me t duratio with butto s
 a d .
Each time you push o e of these butto s, the correspo di g treatme t pa-
rameter is i creased or decreased by o e mi ute or o e volt, respectively.
Hint: By holdi g o e of the push butto s dow , you ca co ti uously i -
crease or decrease the correspo di g treatme t parameter.
1
pulse-width, time a d dose
2
Select the dose i accorda ce with your doctor’s orders or use the table of factory pre-set treatme t
parameters for guida ce.





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Hint: The system saves these setti gs if Profile is active eve if you
adjust parameters duri g a treatme t. The device will automatical-
ly suggest these parameters
1
whe a ew treatme t sessio is
started.
) Starting the Treatment:
Whe treati g ha ds or feet, place each ha d or foot o to o e towel➷ each that
are coveri g the electrodes i the carryi g case trays➘ or ergo omic treatme t
trays➱ that are sufficie tly filled with tap water accordi g to the i stallatio i -
structio s oted previously. Make sure that your ski does ot touch the elec-
trodes directly.
Do not forget to remove any jewelry!
Avoid direct contact between skin and the metal electrode!
To co duct a axillary treatme t, place the pre-soaked axillary pads✃ i to your
u derarms. Make sure the pads fit well a d apply eve pressure to maximize the
co tact area.
Whe the built-i “immersio mo itori g” sys-
tem recog izes that the circuit is closed, the
ACTIVE LED  lights up to i dicate that the
treatme t is active.
Whe treatme t is active (ACTIVE
LED  light is ON) the actual dose
bei g curre tly admi istered is
displayed o the right of the dis-
play. Upo immersio or start of a
treatme t, the dosage always
starts at zero a d the slowly i -
creases to the desired dose previ-
ously set.
Note: The dose measureme t ca be i milliamps or volts, depe di g o
your selectio i the Setup Mode; it ca also be toggled duri g a active
treatme t, but NOT duri g Programmi g Mode.
Important: If you experie ce a y localized pai duri g a treatme t, you
eed to i terrupt the sessio a d cover the pai ful area with
petroleum jelly. Pressi g a y butto will stop the automatic i -
crease of the treatme t dose.
3) Adjusting treatment parameters:
At a y time throughout the treatme t sessio , you ca cha ge treatme t
time a d dose setti gs by pressi g the respective push butto s.
If you i terrupt the treatme t by removi g the treatme t area from the water
source, the ACTIVE LED  goes off a d the treatme t timer is paused. The

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display shows the remai i g treatme t time a d the selected dose i volts.
Whe you co ti ue the treatme t, the ACTIVE LED
 will light up agai
a d the dose display cha ges to zero, before it slowly i creases to the de-
sired value.
4) Ending a treatment session:
Whe the treatme t time is up, the treatme t dose is automatically lowered to
zero. Please keep your ha ds a d feet i the trays (or the axillary pads i place,
respectively) u til the dose display reads “E d“.
Remove the treatment area from the water source (trays or pads) and
THEN switch the device off.
Important Advice for Conducting Treatments
For your safety, your HIDREX treatme t system comes equipped with sev-
eral protective circuits.
Immersion monitoring
Immersio mo itori g is a built-i feature that detects whe the treatme t
electrical curre t circuit is closed due to immersio of the palms or feet, or
placeme t of the pads u der the arms. The ACTIVE LED  will light up
whe the circuit is closed a d treatme t is active.
Over Treatment Protection (OTP) Feature
If your ski is dryer tha ormal
1
, the dose ca ot be i creased (protectio
agai st over-treatme t). Your HIDREX system automatically checks your
specific ski co ducta ce. If your ski co ducta ce is beyo d the preset
threshold, the protectio circuit is activated a d locks the system. The
ACTIVE LED  does ot light up, eve whe the treatme t curre t path is
closed.
Hint: To double-check if over-treatme t protectio has bee activated for you
(a d that it is ot a fault of the device), you ca ru a quick operatio al
check of the device to co firm that it is your ski co ducta ce a d ot the
device. Simply take o e cable a d i sert each e d i to a jack o the
module AFTER the device is i Programmi g Mode. This closes the cir-
cuit; the ACTIVE LED  will light up if the device is worki g properly.
If over-treatme t protectio is activated, you should i terrupt your treatme t
course for at least o e week u til excessive perspiratio retur s.
Please co tact us if the OTP feature has bee activated AND you still have
excessive perspiratio , which is a situatio that may arise i very rare cir-
cumsta ces.
1
This does ot relate to the surface ski layer, but to the moisture co te t of the deeper ski layers, a
i dicator of the exte t of hyperhidrosis.

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Current Limitation
I cases of very heavy sweati g (which i dicates a low electric resista ce of
the ski a d easier curre t flow), the maximum treatme t curre t ca be
reached before the specified dose (volt value) is achieved. A protectio cir-
cuit (curre t limitatio ) i terve es i this case a d stops the device.
This doesn't have any influence on the completion of the session and
protects you only against burns!
Duri g the course of further treatme ts, higher dose values are gradually
reached as perspiratio decreases (the electric resista ce of the ski i -
creases so higher doses are ecessary for effective ess).
The protectio circuit may appear to react faster whe usi g pulsed curre t
mode, but this is ot the actual case. I PC or VPC mode, the “average”
dose value is displayed, but the device mo itors the maximum curre t, ot
the average
1
.
Safety circuit
The DP450 has a safety circuit which stops the treatme t i the case the
curre t exceeds 30 mA. I this case, the display will show “StOP” a d all
LEDs will bli k. Please tur it off, u plug the power supply from the wall a d
se d the device with all electrical accessories back to us if this occurs. Please
refer to sectio “Shippi g the Device for Repair or Mai te a ce”.
Care and Maintenance
This sectio co tai s importa t i structio s about your HIDREX system.
Special Remarks
Our respo sibility for system safety, fu ctio ality, a d reliability applies o ly if a y
mai te a ce a d servici g is exclusively performed by a authorized HIDREX
repair ce ter. Our warra ty ceases a d we assume o liability if a y ma ipula-
tio or service is performed by u authorized perso el.
The regulatio s valid i the respective operator's cou try (e.g., i fectio preve -
tio , tech ical servici g or registratio a d docume tatio regulatio s) are to be
kept i co ectio with the locatio of use (e.g., medical i stitutio ), i a y case,
by the operator.
Multi-Patient Use
The device is suitable for the use by several patie ts at the prescribi g physi-
cia ’s office or hospital, to co duct the i itial or mai te a ce phases of the
treatme t u der a doctor’s supervisio .
1
For example, if PC (50% pulse-width) is used, the displayed value has to be doubled to calculate the
curre t limit.

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As a commu al device for multi-patie t use, the followi g protocols should be
obeyed:
• Each patie t will be provided with own co sumables for HIDREX io to-
phoresis treatme t (pair of towels or axillary pads)
1
, which ca be re-
used to every sessio .
• Betwee treatme ts, the electrodes➴ a d trays (hard case trays➘ or
ergo omic trays➱) must always be clea ed, dried a d disi fected fi al-
ly, as described i the followi g sectio .
Remark: It is at the physicia ’s discretio whether to issue (sell) either the
actual device used duri g i -office treatme ts or a bra d ew de-
vice to a y give patie t.
I either case, if the device issued (sold) is ever i eed of repair
or replaceme t parts or additio al accessories are eeded, the
patie t ca co tact customer service at 1-8HIDREXUSA (1-844-
373-9872) or [e-mail].
Care and Purification
For flawless a d lo g-lasti g fu ctio of your HIDREX tap water io tophoresis
device, we recomme d the followi g steps after each use:
Care after each treatment:
Wash out towels➷ or axillary pads ❐ thoroughly with clea water (without addi-
tio of deterge ts or clea i g age ts).
• Squeeze dry the towels➷ or axillary pads❐ rigorously to remove ex-
cess moisture.
• Let the towels➷ or axillary pads❐ air-dry (do ot store i the closed
hardcase due to humidity!)
• Dry the electrodes➴ with a soft cloth, to preve t calcium deposits o the
sheet metal. Please make sure to remove a y moisture from the treat-
me t electrodes after each treatme t!
• Dry the treatme t trays (hard case trays➘ or ergo omic trays➱) with a
soft cloth a d let them air-dry (do ot close the hard case tray due to
humidity)!
Purification / Cleaning (every 5 sessions or whenever necessary)
Warning: Before clea i g, make sure the device is tur ed off
a d separated from the power li e. Never use kero-
se e, thi er, or other solve ts.
• The co trol u it, the treatme t trays (hard case trays➘ or ergo omic
trays➱) a d electrodes➴ should be clea ed with a moiste ed cloth or
with a commo deterge t.
1
It is suggested that the co sumables are give to the patie t to take home a d clea themselves a d
the bri g them back to subseque t sessio s.

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• Ha d wash the axillary pads❐ with 140°- 195°F (60°- 90°C) water a d
commo deterge t. Ri se thoroughly with clea water, squeeze dry rig-
orously a d let the pads air-dry.
• Ha d or machi e wash the towels with 140°F (60°C) water a d a com-
mo deterge t. Dry the towels by dryer or air-dry.
Important: Calcificatio s o the electrodes ca hi der the treatme t curre t.
This deposit ca be removed with a commo descaler, or eve
vi egar or citric acid.
A discoloratio of the electrode metal after the first treatme t ses-
sio s is ormal.
Maintenance:
HIDREX tap water io tophoresis devices are basically mai te a ce-free.
Nevertheless, for safety reaso s we recomme d a tech ical check a d safety
i spectio by a authorized HIDREX repair every 2 years.
Suitable measuri g a d test equipme t is ma datory for the tech ical safety
i spectio s which cover at least the followi g:
• Visual check of medical device a d accessories
• Protective co ductor test i accorda ce with EN 60601-1:2007
• Leakage curre t test i accorda ce with EN 60601-1:2007
• Operatio al check of the medical device.
Disinfection
Because exclusively u scathed ski will be treated, the HIDREX tap water io to-
phoresis devices are classified as “ o -critical”
1
co cer i g disi fectio .
As a commu al device for multi-patie t use, the followi g protocol should be
obeyed:
• Spray a surface disi fecta t
2
o the electrodes➴ a d treatme t trays
(hard case trays➘ or ergo omic trays➱) so that the e tire surfaces are
completely moiste ed.
• Let the disi fecta t remai o the surface as directed by its i structio s
a d the wipe it dry with a clea cloth.
• The co sumables should be replaced by ew or patie t ow ed towels➷
or axillary pads❐.
1
For si gle-patie t use i home therapy, the care a d purificatio accordi g to the precedi g chapter
is sufficie t. I this case a regular disi fectio is ot strictly ecessary.
2
He kel: I cidi Extra (1%), I cidi Plus (0.5%), Mi util (0.5%)
Dr. Trippe (desomed): Biguamed
Bbrau : Melesept SF (0.5%/5%), Hexaquart S (1.5%/5%), Meliseptol (u deluted)