DolorClast high power laser
905 nm light for an analgesic and anti-inflammatory effect in superficial or deep conditions
Fast relief of acute pain, in depth
The DolorClast High Power Laser is a 905 nm pulsed laser created for physiotherapy, rehabilitation and pain management. According to EMS, it is the first choice for acute inflammation and for immediate relief of joint or muscle pain, and it stimulates local vascular function and cell metabolism.
For patients in the acute phase or with a low pain threshold, it offers a non-invasive solution that prepares the ground for shock waves and the rest of the protocol.
- 905 nm
- 300 W peak power
- Penetration up to 120 mm
- Analgesia up to 72 h
Laser pre-treatment: less pain and more energy for shock waves
In a study by Prof. Dr. med. Christoph Schmitz of Ludwig-Maximilians University Munich (LMU), presented by EMS, pre-treatment with a 904 or 905 nm pulsed, high power laser has an analgesic effect without compromising the efficacy of extracorporeal shock wave therapy.
Since, according to the study, the higher the energy flux density (EFD) applied, the better the clinical outcomes, a patient with less pain tolerates more energy.
- Analgesic effect of the 905 nm laser without compromising shock wave efficacy
- More energy applied, with better clinical outcomes
- Up to 100 % more energy applied by waiting one hour between treatments
Why choose the high power laser
What the therapist and the patient gain.
Fast analgesic effect
According to EMS, the analgesic effect starts about 5 minutes after the end of treatment and can last up to 72 hours.
Anti-inflammatory effect
It reduces acute inflammation and leads to quick oedema absorption and faster healing of the damaged tissue.
Reaches deep structures
The 905 nm wavelength is little absorbed by water, blood and melanin and, according to EMS, penetrates up to 120 mm without burning the skin.
Combination with shock waves
Guided DolorClast Therapy suggests applying shock waves 5 minutes or 1 hour after the laser, for better combined clinical outcomes.
The science behind the 905 nm laser
EMS charts and diagrams, adapted and translated by Sausport.
Weakly absorbed by water, melanin and hemoglobin
Within the therapeutic window (650 to 1350 nm), 905 nm loses little energy in superficial tissue and, according to EMS, reaches deep structures.
The winning formula
905 nm wavelength
+High peak power with short pulse duration
=Best clinical outcomes
It acts on the neurological pain pathway
According to studies cited by EMS, 905 nm laser irradiation switches off nociceptors, the neurons that signal pain, after about 3 minutes, which underlies the fast analgesic effect.
High peak power in very short pulses
Parameters stated by EMS: 100 nanosecond pulses, 300 W peak power, 5 to 80 kHz frequency, 50 % modulation and 1.35 W average power.
How it works, according to EMS
| Wavelength | 905 nm, within the therapeutic window (650 to 1350 nm) |
|---|---|
| Peak power | 300 W |
| Average power | 1.35 W |
| Frequency | 5 to 80 kHz |
| Pulse duration | 100 nanoseconds |
| Modulation | 50 % |
| Penetration | Up to 120 mm deep |
| Manufacturer | EMS Electro Medical Systems SA, Nyon, Switzerland |
What the research says about 905 nm laser
905 nm laser irradiation switches off nociceptors (neurons that signal pain) after about 3 minutes, in an animal experimental study cited by EMS.
Placebo-controlled trial in Achilles tendinopathy: laser light reduced prostaglandin E2, an inflammation marker, about 1 hour after treatment.
Study by Prof. Christoph Schmitz (LMU): an analgesic pre-treatment with a 905 nm high power laser can increase the effectiveness of extracorporeal shock wave therapy.
Selected studies from the EMS scientific library. Results refer to the conditions, devices and protocols of each study.
Safety and use
- Devices for use by healthcare professionals with appropriate training.
- Energy, frequency, number of impulses and interval between sessions are set by the professional, according to the patient assessment and the manufacturer's instructions.
- Contraindications and precautions are listed in the instructions for use of each device and must be checked before every treatment.
General information that does not replace medical advice. The right protocol depends on each patient and must be defined by a healthcare professional.
Frequently asked questions
What is the high power laser used for?
According to EMS, for superficial or deep musculoskeletal indications, as a first choice for acute inflammation and immediate relief of joint or muscle pain.
Why 905 nm?
Within the therapeutic window (650 to 1350 nm), 905 nm is little absorbed by water, blood and melanin, which, according to EMS, lets it reach deep tissue.
Can laser and shock waves be used in the same session?
Yes. Guided DolorClast Therapy suggests applying radial or focused shock waves 5 minutes or 1 hour after the laser.
Which patients can benefit?
Patients in the acute phase or with a low pain threshold, for whom a pain-free treatment matters, according to EMS.
Are there safety instructions?
Yes. The manufacturer's instructions for use set out the laser's precautions and contraindications, including eye protection, and must be followed.