Frequently Asked Questions
of our customers

  1. What accessories are needed for SoftLaser application in acupuncture?
  2. What is the total price of ... including handling, custom charges and shipping? What are the possible ways of payment?
  3. Could you mail me the brochure?
  4. What are the main differences between He-Ne laser and Diode laser?
  5. Could the emitted wavelength be changed (810 nm to 660 nm etc) with change of the probe?
  6. How to arrange Pulse mode?
  7. Please tell me about the crystals that you use in the lasers.
  8. How wide is the light dissipation angle and is it impulse or permanent continious wave beam?
  9. What makes Soft Laser complex for therapy different from the many others?
  10. Are Soft Lasers safe?
  11. What distributors do you have worldwide?
  12. What is laser generation of Soft Laser?
  13. Does your company produce phototherapy devices based on light- emitting diodes?
  14. What is considered to be an optimal dose for laser therapy?
  15. What brochures (in English) can we order from You additionally?
  16. Does PETROLASER produce long fiber optics for Soft Laser?
  17. What is the typical influence of LLLT on individuals with hypotony?
  18. Can Soft Laser be applied in Acupuncture and Reflex Therapy?

1. What accessories are needed for SoftLaser application in acupuncture?
For laser acupuncture applications the user should be equipped with SoftLaser and special fiberoptics that is coupled to laser probe with a zang connector. This fiberoptics looks like a short (3 cm) needle 1,5 mm diameter with optical waveguide inside and a microlens at the input end. Usually it is included into NILU-L1 instruments set.

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2. What is the total price of ... including handling, custom charges and shipping? What are the possible ways of payment?
Becouse we have autorized dealers in some countries we do not place the prices on the site becouse they are quite different in different places of the World. But you always can ask us and we will be glad to quote you the full price. But for determining the final cost for you we need to know your location, way of payment (preliminary, L/C or via WesternUnion) and way of delivery you prefer (usually it is Federal Express).

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3. Could you mail me the brochure?
All asked brochures are always delivered only with the laser. This is a company's policy. You may get the initial information from books reffering any of medical laser application that may be available at your nearest medical library.

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4. What are the main differences between He-Ne laser and Diode laser?
Main difference between He-Ne laser and diode laser are:
a. He-Ne laser produces visible light, while diode laser is infrared invisible.
b. He-Ne laser beam is parallel, while diode laser beam is dissipating (propagates in a certain angle).
c. He-Ne laser operates with several kV (thousand volt) voltage inside, while diode laser needs only 2-3 volts to operate, thus, it is safe.
d. He-Ne laser efficiency is a portion of one percent, while diode laser efficiency is up to 60%
e. He-Ne laser is big and heavy, while diode laser weights less than a killogram 9together with a power source).
f. He-Ne laser can be easily broken: it contains glass cappilar inside and precise optical parts fixed on an "optical bench", while diode laser is a monolitic, solid state structure, lokking like a mid-power transistor.
g. He-Ne laser has less lifetime (2-3000 hrs), while diode lasers we use now easily reach 10 000 hrs lifetime.
h. He-Ne lasers are usually much more expensive.
So, as you may see, the main advantages of He-Ne laser is it visibility that gives phsychological effect on the pacient, and the less-dissipation of the beam, that is hardly ever used in medicine.

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5. Could the emitted wavelength be changed (810 nm to 660 nm etc) with change of the probe?
The probes of Softlaser are interchangable, but at the moment our company is producing only probes with infrared wavelength range that are most accepted by our customers. Such light propagates much deeper in human tissues - up to 50-70 mm. These wavelengths are from 820 nm to 950 nm. We can produce 660 nm probe as a custom order, but with output power not more than 5 mW.

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6. How to arrange Pulse mode?
Our SoftLaser operates in two modes: in a continious wave mode and in modulated mode. The last one is usually also called pulse mode. To tune the device to modulation one needs to adjust the frequency wanted: from 1 Hz to 99 Hz (step 1 Hz), 100 Hz - 990 Hz (step 10 Hz), 1 kHz - 99 kHz (step 1 kHz).

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7. Please tell me about the crystals that you use in the lasers.
We use InGaAsP double heterostructure with multiple quantum well active layer. Separate confinement (light and current fields).

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8. How wide is the light dissipation angle and is it impulse or permanent continious wave beam?
Light distribution: 90% in 20o space angle. Continious wave mode (permanent), microlens optical coupling with acupuncture fiberoptics. At the output end of fiber optics dissipation angle is about 20o, circular simmetric.

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9. What makes Soft Laser complex for therapy different from the many others?
I would like to stress out that Soft Laser is in many aspects "Top of laser therapy" and differs greatly from what you have seen before.

The six main reasons are as the following:
1. Laser operates in CW (continious wave) mode, with 100 mW output coupled to original fiber optics.
2. At the focus point the user can get power density up to 1000 W/sq.sm, that is enough to burn carbon paper or melt black plastics, while the beam does not bring any sensible heat to skin.
3. Laser is equipped with computer-designed lens (collimator), that makes light penetrate as deep as to 7 sm into soft tissues.
4. Laser beam can be modulated not only within 1 Hz to 9900 Hz frequencies, but to special Bakr and Norgier frequencies as well.
5. We have a widest choice of fiberoptics for 7 kinds (modes) of application to pathological organ, while efficiency of optical coupling is more than 60%.
6. Leading Russian doctors wave written original Metods of Treatment broshures for supplying clients in many fields with third Important component of our Complex therapy: Laser+Fiberoptics+Methods.

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10. Are Soft Lasers safe?
The complex question of laser safety can be made quite simple - for 100 mW infrared laser it is enough not to switch the power "ON" before pointing the output aperture to the object. Besides that, most types of our fiber optical accessories protect from laser beam for 100%.
For answering this question in detail I would have to translate
Russian state standard for laser safety (80 pages). It is more strict than western standards for laser safety. Unfortunately, this is too long document. Better to re-address you to IEC 60601-2-22 standard (laser safety), issued by International Electrotechnical Commission. We have some special organisations here in Russia, that are carrying a lot of research in laser safety for more than 30 years. And a lot of printed materials is availabe in Russian. But there is almost no research since 1988 on low power infrared lasers, as CW at 100 mW, at 780 - 890 nm. They are all over now.
Main recomendations (quite simple) are included in the user's mannual that You will have with the laser.

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11. What distributors do you have worldwide?
Europe - Hauptner&Herberholz, Germany, werkauf@hauptner-herberholz.de
Africa - International Electronics Company (Biomedical Division), altra@ie-eg.com
Aisia - Lambda Microwaves, Chief executive Mr. Kunjan Arora, tel. 91 129 5255253 New-Delhi, India
USA - Dr. T. Corbin, Miami, FL - tel. 954 989 4081 corbinth@hotmail.com
Philippines - Dr. Valentin Yabes, valgyabes@yahoo.com
Peru Dr. Enrique Quevedo Flores, tel. 51 9 266109

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12. What is laser generation of Soft Laser?
Regarding "generations" of lasers - in my oppinion, this is mostly a marketing trick of sales people. They try to classify their products in a new way in order to separate themself from competition.
In fact, the He-Ne lasers that were the oldest gas lasers designed and applied in medicine - are still used been very silghtly changed (electronics of power supply was upgraded). Neodimium-YAG lasers that are classical for surgery are just with the same technical parameters as 20 years ago. The same can be said about CO2 lasers - they are becoming smaller in size and more energy - saving, but physics does not change.
Diode lasers (like Soft laser) are numerous - differing in power, colour (wavelength), and control possibilities. Our device was at first 5 mW (1993), with analog regulation of output and frequency, than 20 mW (1993 - 1995), 60 mW (1995 - 1998), and 100 mW.
We have also added opical feedback (monitoring photodiode), upgraded indicators, made frequency range higher, and had done a lot in the printed circit boards. But physically the laser beam is just the same. More power? This will be non-therapy laser, as blood will coagulate at 200 mW focused in 1 mm diameter point.
We, in Petrolaser had made giant progress in design of fiber optics for medicine - as far as I know nobody is producing such a variety of acsessories to therapy laser.
Recently we have upgraded the software (program of control and algorithm of work). Now before starting operation one is testing the output automatically. New Bakr and Norgier frequencies were added. We could call all these stages "new generations" of laser therapy devices. But we are not so selfish - Soft laser is quite popular and sucsessive at the market without all this chattering. We shall be better doing our best in medical engeneering, that's the point.

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13. Does your company produce phototherapy devices based on light- emitting diodes?
As for you interest to multi - colour devices based on LED's - we have one simple device - "DONGA" for individual use - it has 680 nm and 20 mW output.
More modern one combines four types of light, and is designed on a base of vaccum therapy unit, with red, blue, green LEDs inside the vaccum cup. 200 mW laser is also there, in the center of cup (this system has no focusing optics - just reflective layer of cup, so - it's safe 200 mW). There are 10 programs combining vaccum, IR laser, and visible light for various applications. This unit is not displayed at the web site yet. It is called "Fotonics".

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14. What is considered to be an optimal dose for laser therapy?
In Russia there were many experiments carried out in the field of optimal dosage research. The most interesting result was the discovery of self-regulation mechanism: When initial laser exposure caused stimulation of microcirculation of blood, and skin have turned reddish, after the dose was enough, the less blood came into the site (field of radiation). This leads to skin becoming pale, and reflection coefficient increase. More light was then reflected by tissue, less volume of blood was effected.
Thus, it has become well- known by laser therapists that local (and temporary) increase of blood flow will be decreased after optimal dose absorption. And human organism protects itself in this way against the over exposure. But this usually happens (and was investigated) with the doses up to 4 -5 Joules and up to 20 Joules (individually) per one field.
The Method Reference brochure includes detailed dosage is supplied with the Soft Laser to customer.

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15. What brochures (in English) can we order from You additionally?
We have the following literature about laser usage in Humans:
- Laser therapy in Traumatology;
- Laser therapy in Urology;
- Laser therapy in Dentistry;
- Laser therapy in Gynecology;
- Laser therapy in Cosmetology;
- Laser therapy in Otorinolaringology;
- Laser therapy in Dermatovenerology.

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16. Does PETROLASER produce long fiber optics for Soft Laser?
We are producing such fiber optics that is called "Magistral fiber". It is included in the NILU-B2 set that you had ordered now.
The length is about 7 feet. But both ends of it have optical coupling - precise cylindrical connector that can be plugged in and easily plugged out of the zang holder. It also includes micro optical lens at the ends. The fiber is protected by a special tubing (a sleeve), fixed at both ends by thermo-tightening tube. Core diameter of fiber is 0.6 mm, diameter of lenses at output and input are 1.2 mm.
The price of one Magistral Fiber is 75$. Maybe this is not as low as you have expected. But this is a complicated hi-teck optical product with optical power transfer efficiency not less than 70 %

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17. What is the typical influence of LLLT on individuals with hypotony?
The fact is that people having hypotony can usually feel better after treatment by the SL-202 laser and their arterial blood pressure gets quite normal. On the contrary, if you have a high blood pressure disease you should better to avoid too much sessions of laser therapy because it can more increase your blood pressure.

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18. Can Soft Laser be applied in Acupuncture and Reflex Therapy?
Although laser reflexotherpy needs special training, in particular, the knowledge of biologically active points topography it can be successfully used by stomatologists for managing pain syndromes associating various pathology.
Most frequently used points are: SIAO-HI 8 IG, E-MAN 2 TR, TYAN-CHUAN 16 IG, VAN-LU 7 GI, TZYAO-SUN 20 TR, TZUI-TCHI 11 GI, YAN-GU 5 IG, TYAN-ZUN 17 IG, KHE-GU 4 GI, SYA-GUAN 7 E, TUN-TZI-LYAO 1 VB, TZU-SAN-LI 36 E, TCUN-YAN 42 E, DA-TCHUI 14 VG, NEI-TIN 44 E, LI-DUI 45 E, AT7.
At first it is necessary to determine the most active point among the set of those belonging to the zone of a concrete tooth. This is achieved by measuring the value of potential by electric voltmeter (B7-16 type). Having determined the most active point the latter is irradiated via the acupuncture tip with output power 2 -10 mW (thus, to compensate losses in the tip laser output power should be 4 -20 mW) with the exposure of 20 -40 seconds per a point.
Then some another active points should be found (also by evaluating potential and electroconductivity) and irradiated with the same parameters.
Exposure for point irradiation should be determined individually regarding reduction or resolution of pain.
Procedures are performed once or twice per day.

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