Class IV Lasers in Physical Therapy
Class IV Lasers in Physical Therapy
Laser is an acronym for:
L ight
A mplification from the
S timulated
E mission of
R adiation
Laser Classifications
Lasers are classified into four broad areas depending on the potential
for causing biological damage.
When you see a laser, it should be labeled with one of these four
class designations:
Class I These lasers cannot emit laser radiation at known hazard levels.
Class I.a This is a special designation that applies only to lasers
that are "not intended for viewing," such as a supermarket laser scanner.
The upper power limit of Class I.A. is 4.0 mW.
Class II These are low-power visible lasers that emit above Class I levels
but at a radiant power not above 1 mW.
The concept is that the human aversion reaction to bright light will protect
a person.
Class III.a These are intermediate-power lasers (cw: 1-5 mW), which are
hazardous only for intrabeam viewing. Most pen-like pointing lasers are in this
class.
Class III.b These are moderate-power lasers.
Class IV These are high-power lasers (cw: 500 mW, pulsed: 10 J/cm2 or
the diffuse reflection limit), which are hazardous to view under any condition
(directly or diffusely scattered), and are a potential fire hazard and a skin
hazard. Significant controls are required of Class IV laser facilities.
Theorized Mechanisms of Action
Phospho-lipid Gate and coherent Light
The cell membrane “oscillates” due to the coherence of the waveforms and
thus increases cell membrane permeability
Photosensitivity of Prostaglandin E
A pain and inflammatory mediator is converted into a vasodilator which
then helps increase circulation in the area and decrease discomfort
Prostacycline-endoperoxide
Potential Benefits of Laser
ATP production
Collagen Synthesis
Wound healing
Pain reduction
…..and there is no sensation to the patient except possibly the sensation
of a slight breeze.
Method of Treatment
Depth of penetration
Treatment time calculation
Power
Treatment area size
Wavelength of the laser
Dimed laser unit is
powered by 60.0 Watt GaAlAs Diode Laser, one of the most powerful available,
emitting a continuous wave at a 980nm (near infra-red wavelength) for maximum
bio-stimulation. This is a powerful, non-addictive, and side-effect free form of
pain management that decreases inflammation and scar tissue formation. These
therapeutic qualities enable laser therapy to accelerate wound healing and
reduce injury recovery time.
Wuhan Dimed Laser Technology Co., Ltd
Tel: +86 15827593150
Email: marketing@dimedlaser.com
Skype: 244067255@qq.com
Tel: +86 15827593150
Email: marketing@dimedlaser.com
Skype: 244067255@qq.com
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