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New and Pre-Owned Therapeutic Lasers

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Are All Joules Of Energy Created Equal?

When speaking with doctors about lasers, we are frequently asked to compare lasers on the basis of Joules. Joules are the units of energy produced by lasers, measuring the amount of work required to produce one watt of power for one second.

Examples

Let’s look at some examples of how joules can be produced, using a Continuous Wave laser firing for one minute:

Energy produced by laser/second             Time needed to produce 60 Joules

0.001            W        or        1 milliwatt                              100 minutes = 60 Joules

0.100            W        or     100 milliwatts                             10 minutes = 60 Joules

1.000            W        or  1,000 milliwatts                               1 minute   =  60 Joules

10.000            W       or 10,000 milliwatts                             6 seconds =  60 Joules

The table above shows that we can produce 60 joules of therapeutic energy, using either an output of 1 milliwatt per second, or 10 watts per second, to achieve the same dosage for treatment.

But Are The Clinical Results The Same?

Is a joule always a joule, for clinical effectiveness? Research demonstrates that clinical effectiveness is based on laser photons reaching the target tissue.

Depth of penetration of laser photons is based on Peak Power, not total joules. If depth of penetration is not clinically required, i.e., only superficial stimulation of acupuncture points or superficial tissues are targeted, then a source of either 1 milliwatt or 1 watt could be effective.

If deeper tissues are targeted, higher wattage delivery is required.

Summary

A joule is a joule, as a measurement of energy. When using joules to compare therapeutic effects of a laser NOT all joules are equal. Higher watt lasers permit deeper penetration to underlying structures.

Please click the link to read our ebook The Science of Therapeutic Lasers.

About Rob Berman

ROB BERMAN is a partner at Berman Partners LLC, a medical device sale, service, and marketing company. Berman Partners specializes in new and preowned therapeutic lasers. He can be contacted at 860-707-4220, [email protected], or through bermanpartners.com.

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Berman Partners, LLC is a laser distributor. We specialize in therapeutic lasers. That means we sell lasers from multiple manufacturers. You benefit through our ability to offer new, pre-owned and demonstration lasers. Our lasers include high-power Continuous Wave Class 4, lower power Handheld Class 3b and Unattended Class 3b. We take your laser in trade or sell it for you as well.

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We are always happy to speak to you about any questions you may have. Call Rob at 860-707-4220.

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