WONtech SANDRO DUAL User manual

The Most Advanced Technology,
Hybrid System
Long-pulsed 755nm & 1064nm
Hybrid System
Hair Removal
Pigmented Lesions
Vascular Lesions
Skin Rejuvenation
755nm · 1064nm · Hybrid
SDQRGE 1812 V1.0.1

Treatment Guidelines
Pre-Treatment Care
To Load Parameters To Save Parameters To Install Cryogen Canister
To Install Cartridge Spot Size
Pilot
Brightness of aiming beam
SAVE
To save new parameters
LOAD
To load preset parameters
System infor
Parameter Settings
Fluence (J/cm2)
Pulse Duration (ms)
Frequency (Hz)
Set Pulse / Pulse Count
Check and reset the
number of shots
accumulated or subtracted
SCS settings
Pre/Post
Cryogen quantity (in levels)
Standby / Ready
Cryogen Canister Status
Cryogen remaining amount
Mode 755nm/Hybrid/1064nm
Alarm message
Adjust parameters
and press “Save” button
Press “Load” button
Input the name of parameters, select a
tab and then press “Enter” button
Select parameters,
and then press “OK” button
※ Turn off the system before installing
cryogen canister
•To install, turn the canister clockwise
until you feel the resistance
•To disconnect, turn canister
counterclockwise
※ Do not give too much force to the
bottom of cryogen canister when
installing
Fully insert a cartridge in to the handpiece
While pushing the button of the handpiece

Treatment Guidelines
Getting Started
Precautions
•Eye protection MUST be worn. (eyeshields for the patient and goggles for the physician)
•Parameters and SCS status MUST be double checked before starting the procedure.
•Test spots MUST be performed in order to obtain optimal endpoints for better therapeutic efficacy and safety.
Fluence and LTIs vary from patient to patient depending on skin types, skin conditions and more.
•Parameters in the treatment guidelines were developed based on skin types Ⅲ-
Ⅳ. For darker skin types, start at
lower flunece or/and longer pulse duration than indicated in the treatment guidelines.
•After each treatment, gently wipe the handpiece and cartridge tip with alcohol swap or the cue tip with 70%
isopropyl alcohol.
Skin Types
•755nm : ideal for skin types Ⅰ-Ⅳ
•1064nm : ideal for skin types Ⅴ-Ⅵ
※ Note that the provided parameters were developed based on skin types Ⅲ- Ⅳ
Type Skin Color Hair Color Eye Color Sun Reaction
ⅠWhite Red Blue-green Always burn,
never tan
ⅡWhite Blonde Blue Usually burn, tans
with difficulty
ⅢWhite to Light
Brown Brown Brown
Sometimes burns,
average tanning
ⅣModerate Brown Brown-Black Brown-Black
Rarely burns, tans
with ease
ⅤDark Brown Black Dark Very rarely burns,
tans very easily
ⅥBlack Black Dark
Main Power Switch The Key Switch The warming-up Icon
1. Connect power cable to wall outlet for stable power supply.
2. Turn on the system by switching the main power switch on
the back and the key switch on the front.
*To turn off the system, proceed in reverse order.
3. The warming-up takes about < 15minuetes. *Warming-up
icon is displayed at the position of “standby/ready” button.

Quick Reference Guide
Hair Removal
Lesion Wavelength
(nm)
Spot Size
(mm)
Pulse
Duration (ms)
Fluence
(J/cm2)
Frequency
(Hz)
SCS
Pre Post
Fine Hair
755 10 3 15 2 4.4 (4.4)
755 15 3 12 2 4.4 (4.4)
755 18 3 11 2 4.4 (4.4)
755 20 3 11 2 4.4 (4.4)
1064 10 5 30 2 4.4 (4.4)
Normal Hair
755 10 5 15 2 4.4 (4.4)
755 15 5 13 2 4.4 (4.4)
755 18 5 12 2 4.4 (4.4)
755 20 5 11 2 4.4 (4.4)
1064 10 15 25 2 4.4 (4.4)
Thick Hair
755 10 10 15 2 4.4 (4.4)
755 15 10 13 2 4.4 (4.4)
755 18 10 12 2 4.4 (4.4)
755 20 10 11 2 4.4 (4.4)
1064 10 30 20 2 4.4 (4.4)
Hybrid
Normal Hair
755
15
3 10
2 4.4 (4.4)
1064 3 10
1064
15
10 15
2 4.4 (4.4)
755 10 5
Trichostasis
spinulosa 755 12 3 14-20 2 4.4 (4.4)
•Fine Hair : female philtrum, arm, …
•Normal Hair : female armpit, legs, male back, …
•Thick Hair : bikini, beard, …

Quick Reference Guide
Hair Removal
Pre-Treatment Care
•No tanning or sun exposure to the treatment area prior to treatment for 4weeks.
•Shaving must be done 1 day prior to treatment, no plucking or using hair removal cream.
•Anesthetic cream is as needed.
•Eye protection must be worn. (eyeshields for the patient, goggle for the physician)
Intra-Treatment Care
•The Therapeutic energy for each patient may vary according to patient skin type, location, density and color of
hair.
•Test spots MUST be performed before starting the treatment to find the optimal parameters for each patient.
Start at the low fluence depending on spot size and skin type.
•The provided parameters are based on using SCS(Skin Cooling Spray) together. It is recommended to use only
pre-cooling, but you can use pre- and post-cooling. Fluence should be adjusted if it you adjust SCS.
•The desired endpoints are mild to moderate perifollicular erythema and edema.
•For lighter skin types, increase the energy of 5-10J/cm2 over the parameters provided.
•For darker skin types, decrease the energy of 5-10J/cm2 and increase the pulse duration up to 30-40ms over
the parameters provided.
•The handpiece should be perpendicular to the skin. It is also recommended to overlap only 10-20% of a beam
profile to another and proceed 1pass.
•Delivering double pulses is not recommended.
•If a lesion is larger, divide the treatment area using a skin marker to prevent overlapping.
Post-Treatment Care
•Apply a cooling pack, soothing cream, or/and moisturizer to the treated area.
•Avoid sun exposure and apply sunblock regularly. (SPF 30 or higher)
•Erythema and edema are common following treatment and resolve over time. If these symptoms persist for more
than 3days, anti-inflammatory medicine or dexamethasone should be prescribed.
•Pustules or pimples may develop in the first few days following treatment. In severe cases. steroids or
antihistamine should be prescribed.
•Avoid hot temperatures (sauna, vigorous exercise and etc) for at least 7days.
•3-5 or more sessions are recommended every 4-6weeks.

Quick Reference Guide
Pigmented Lesion Treatment
Lesion Wavelength
(nm)
Spot Size
(mm)
Pulse
Duration
(ms)
Fluence
(J/cm2)
Frequency
(Hz)
SCS
Pre Post
Freckles
755 2-3 0.2 40 1 Off 4.4
755 3 0.3 30 1 Off 4.4
Solar Lentigines
Seborrheic
keratosis
755 5 0.5 25-40 1 Off 4.4
Age Spot
Café Au Lait 755 5 3 35-55 1 4.2 4.4
Hybrid
Light Brown Spots
1064
3
5 50 1
- 4.4
755 5 50 1
Mole
755 2 3 150-180 1 4.8 5.0
755 3 10 120-150 1 4.8 5.0
Melasma 755 10 3 16 1 4.2 4.4
PIH 755 7 10 7.8 1 4.2 4.4
Mole
•2-3pulses
•Endpoints : pigment removal, and mild erythema and edema
Melasma and PIH
•1-2 passes
•Endpoints : slight darkening of pigment, and mild erythema and edema
※ Refer to the next page for other pigmented lesions.

Quick Reference Guide
Pigmented Lesion Treatment
Pre-Treatment Care
•No tanning or sun exposure to the treatment area prior to treatment for 4weeks.
•Anesthetic cream is as needed.
•Eye protection must be worn. (eyeshields for the patient, goggle for the physician)
Intra-Treatment Care
•The Therapeutic energy for each patient may vary according to patient skin type, location, density and color of
pigmentation.
•Test spots MUST be performed before starting the treatment to find the optimal parameters for each patient.
Start at the low fluence depending on spot size and skin type.
•The provided parameters are based on using SCS(Skin Cooling Spray) together. Fluence should be adjusted if it
you adjust SCS.
•The desired endpoints are are slight darkening of pigment, and mild erythema and edema.
•For darker skin types, decrease fluence and increase pulse duration over the parameters provided.
•If the lesion shows whitening, blanching response or blistering, it means that excessive energy is used.
•The handpiece should be perpendicular to the skin. It is also recommended to overlap only 10-20% of a beam
profile to another and proceed 1pass.
•Delivering double pulses is not recommended.
Post-Treatment Care
•Apply a cooling pack, soothing cream, or/and moisturizer to the treated area.
•Avoid sun exposure and apply sunblock regularly. (SPF 30 or higher)
•Erythema and edema are common following treatment and resolve over time. If these symptoms persist for more
than 3days, anti-inflammatory medicine or dexamethasone should be prescribed.
•Pustules or pimples may develop in the first few days following treatment. In severe cases. steroids or
antihistamine should be prescribed.
•Scabs will form within 1-3 days and they fall off within 5-7 days. In the meantime, the patient should not
intentionally take them off or rub the skin.
•Avoid hot temperatures (sauna, vigorous exercise and etc) for at least 7days.
•3-5 or more sessions are recommended every 4-6weeks.

Quick Reference Guide
Vascular Lesion Treatment
Lesion Wavelength
(nm)
Spot Size
(mm)
Pulse
Duration
(ms)
Fluence
(J/cm2)
Frequency
(Hz)
SCS
Pre Post
Telangiectasia
1064 3 5 180-200 1 4.4 4.4
1064 3 10 180-200 1 4.4 4.4
Venulectasia 1064 3 20 160-180 1 4.4 4.4
Reticular Vein 1064 3 30 160-180 1 4.4 4.4
Dark Circles
under eyes
1064 5 30 150 1 4.4 4.4
Port Wine Stains 1064 5 30 80-100 1 4.4 4.4
•Telangiectasia : mainly on the face and the nose, red and less then 1mm in diameter
•Venulectasia : mainly on the face or/and legs, dark red and 1-2mm in diameter
•Reticular Vein : mainly on legs, blue and more than 2mn in diameter
Dark circles and Port Wine Stains
•Apply anesthetic cream for 20-30minutes
•Endpoints : purpura(may be delayed), and erythema and edema
•Time interval for treatments : 6-8weeks
※ Refer to the next page for other vascular lesions.

Quick Reference Guide
Vascular Lesion Treatment
Pre-Treatment Care
•No tanning or sun exposure to the treatment area prior to treatment for 4weeks.
•Do not use anesthetic cream. Anesthetic cream can cause vessels contractions and disappearance.
•The patient should not take anticoagulants such as aspirin.
•Eye protection must be worn. (eyeshields for the patient, goggle for the physician)
Intra-Treatment Care
•The Therapeutic energy for each patient may vary according to size and color of the vessel.
•Test spots MUST be performed before starting the treatment to find the optimal parameters for each patient.
Start at the low fluence depending on spot size and skin type.
•The provided parameters are based on using SCS(Skin Cooling Spray) together. Fluence should be adjusted if it
you adjust SCS.
•The desired endpoints for red vessels are transient or persistent color change within the vessel, vessel
disappearance or constriction, erythema or purpura.
•The desired endpoints for blue vessels are constrict of disappear following the laser pulse.
•For darker skin types, decrease fluence and increase pulse duration over the parameters provided.
•If the lesion shows whitening, blanching response or blistering, it means that excessive energy is used.
•The handpiece should be perpendicular to the skin. It is also recommended to overlap only 10% of a beam
profile to another and proceed 1pass.
•Do NOT deliver double pulses.
•For telangiectasia, trace the vessel with laser pulses, beginning at the distal end of the vessel branch and
working to the proximal end toward the larger feeding vessel.
Post-Treatment Care
•Apply a cooling pack, soothing cream, or/and moisturizer to the treated area.
•Avoid sun exposure and apply sunblock regularly. (SPF 30 or higher)
•Erythema and edema are common following treatment and resolve over time. If these symptoms persist for more
than 3days, anti-inflammatory medicine or dexamethasone should be prescribed.
•Pustules or pimples may develop in the first few days following treatment. In severe cases. steroids or
antihistamine should be prescribed.
•Avoid hot temperatures (sauna, vigorous exercise and etc) for at least 7days.
•3-5 or more sessions are recommended every 4-6weeks.

Quick Reference Guide
Skin Rejuvenation
Lesions Mode
(nm)
Spot Size
(mm)
Pulse
Width
(ms)
Fluence
(J/cm2) Hz
SCS
Pre Post
Alex Toning
755 7 0.2 5-8 8-10 Off Off
755 10 0.3 4-7 8-10 Off Off
Genesis
1064 7 0.3 8 8-10 Off Off
1064 10 0.3 5 8-10 Off Off
Core Heating 1064 15 30 9 2 Off Off
Dermal Remodeling 1064 15 30 - 50 25 - 30 2 4.4 4.4
Onychomycosis
1064 5, 7 0.5 5-7 2 Off Off
1064 7 20 15-20 2 Off Off
Wart 1064 5 20-50 180-250 2 5.0 5.0
Onychomycosis and Wart
•1-3passes on treatment area
•Endpoints : slight ash gray coloration that occurs immediately after laser irradiation or may be subtle
•Number of sessions : 3-5sessions, every 4weeks
•Do not place the tip of the handpiece in contact with the skin when lasing the wart
•Hold the tip of the handpiece 1cm away from the lesion
•Wipe the cartridge with alcohol swap after each treatment
※Refer to the next page for skin rejuvenation procedures.

Quick Reference Guide
Skin Rejuvenation
Pre-Treatment Care
•No tanning or sun exposure to the treatment area prior to treatment for 4weeks.
•Anesthetic cream is generally not necessary.
•Eye protection must be worn. (eyeshields for the patient, goggle for the physician)
Intra-Treatment Care
•The Therapeutic energy for each patient may vary according to skin thickness and skin type.
•Test spots MUST be performed before starting the treatment to find the optimal parameters for each patient.
Start at the low fluence depending on spot size and skin type.
•For skin rejuvenation (Alex toning, genesis, core heating or dermal remodeling), SCS is not necessary.
•The desired endpoints are mild erythema or edema that may be delayed.
•The handpiece should be perpendicular to the skin. Hold the tip of the handpiece approximately 1-2cm away
from the surface of the skin to be treated.
•For Alex toning, core heating or dermal remodeling, proceed 1-2passes(500-1000shots). If the skin has no
erythema and edema, you can deliver 1-2passes of Genesis afterwards.
•For Genesis, proceed 3-5passes(4-5000shots). Move the handpiece back and forth rapidly (from top to bottom
and from left to right) making passes over the treatment sections.
•Check the LTIs intermittently between passes, the pulses are not an absolute as each individual may respond
differently.
•Decrease fluence for sensitive area (eg. neck) or/and with hair (eg. forehead and hairline).
•It is not recommended to treat beard area as it may cause blistering or irregular hair loss.
Post-Treatment Care
•Apply a cooling pack, soothing cream, or/and moisturizer to the treated area.
•Avoid sun exposure and apply sunblock regularly. (SPF 30 or higher)
•Erythema and edema are common following treatment and resolve over time. If these symptoms persist for more
than 3days, anti-inflammatory medicine or dexamethasone should be prescribed.
•Pustules or pimples may develop in the first few days following treatment. In severe cases. steroids or
antihistamine should be prescribed.
•Microcrusts may occur and naturally fall off in 5-7days of treatment
•Avoid hot temperatures (sauna, vigorous exercise and etc) for at least 7days.
•5-8 or more sessions are recommended every 2weeks.