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US5640978A Expired / Lapsed US ⏱️ 0.0 years remaining

Method for pain relief using low power laser light

Assignee: Diolase Corp
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Filing: 1991-11-06
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Granted: 1997-06-24
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Expires: 2011-11-06
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Abstract

Abstract The invention comprises a method for treatment of chronic and referred pain such as chronic headaches and migraine headaches, as well as pain of the upper back, neck and shoulders, and lower back pain using low power laser light. The source of such referred pain involves microscopic and macroscopic tears in the periosteal-osseous junctions of the upper vertebrae, the scapula, and the skull. These lesions stimulate the generation of histamines, kinins, bradykinins, prostaglandin, proteolytic enzymes, seratonin, and other substances which cause numerous localized autonomic reactions, such as muscle spasm, ischemia, local inflammation, edema, as well as generalized reactions such as increased blood pressure, photophobia, nausea, blurred vision, copious mucous flow of the nose and sinus, and the like. The muscle spasms are responsible for transmitting the pain sensation to other portions of the body, and the systemic reactions are often associated with migraine-type headaches. The sites of the periosteal-osseous lesions can be correlated directly with the distant locus of the referred pain sensation. The laser energy is directed to the sites of the lesions to cause an increase in lymphatic circulation at the site of the causative lesion in response to the laser energy. Laser energy delivered to the site results in increased blood circulation and cellular metabolism in the area, which promotes more rapid healing of the lesion.

Inventors

  • 👤 Edmund Wong

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 23:45
CPC Classifications
A; A61; A61N; A61N5/00; A61N5/06; A61N5/0613; A61N5/0619; A61N2005/0658; A61N2005/0659; A61N5/067

Claims Analysis

Total Claims: 5
Claim 1
Independent Claim 88 words
A method for relief of pain caused by periosteal-osseous injuries that liberate inflammatory substances at the injury sites and cause muscle spasms and withdrawal that create pain at sites distant from said injury sites, comprising the steps of identifying said sites of periosteal-osseous injuries by palpation to distinguish said sites by localized tenderness, and irradiating the periosteal-osseous injury sites with low power laser energy to open lymphatic channels and remove the inflammatory substances so that the muscle spasm and withdrawal are alleviated and the referred pain is reduced.
Claim 2
Independent Claim 88 words
A method for relief of pain caused by periosteal-osseous injuries that liberate inflammatory substances at the injury sites and cause muscle spasms and withdrawal that create pain at sites distant from said injury sites, comprising the steps of identifying said sites of periosteal-osseous injuries by palpation to distinguish said sites by localized tenderness, and irradiating the periosteal-osseous injury sites with low power laser energy to open lymphatic channels and remove the inflammatory substances so that the muscle spasm and withdrawal are alleviated and the referred pain is reduced.
Claim 3
Dependent Claim 22 words
The method for relief of pain of claim 1, wherein said low power laser energy is in the near-infrared to mid-infrared range.
Claim 4
Dependent Claim 24 words
The method for relief of pain of claim 1, wherein said low power laser energy is in the power range of 30 mW-150 mW.
Claim 5
Dependent Claim 29 words
The method for relief of pain of claim 1, wherein said low power laser energy has a minimum power of 30 mW and a maximum power of 500 mW.

References Cited (Backward Citations)

US4232678A Cited
US4561440A Cited
US4836203A Cited
US5029581A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 2000-06-23 2000-12-23 2001-06-24 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 2004-06-23 2004-12-23 2005-06-24 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2008-06-23 2008-12-23 2009-06-24 $7700.00 Window Closed / Lapsed

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