Method for pain relief using low power laser light

• US 5,640,978 A
• Filed: 11/06/1991
• Issued: 06/24/1997
• Est. Priority Date: 11/06/1991
• Status: Expired due to Fees

• Current Assignee: Diolase Corporation
• Original Assignee: Diolase Corporation
• Inventors: Wong, Edmund
• Primary Examiner(s): Lewis, Aaron J.
• Application Number:
  US07/788,604
• Time in Patent Office: 2,057 Days
• Field of Search: 128/395-398, 128/907, 128/665, 606/2, 606/3, 606/15, 606/16
• US Class Current: 128/898
• CPC Class Codes: A61N 2005/0659 infrared
• CPC Class Codes: A61N 5/0619 Acupuncture
• CPC Class Codes: A61N 5/067 using laser light

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.

Claims

1. 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.

2. The method for relief of pain of claim 1, wherein said low power laser energy is in the near-infrared to mid-infrared range.

3. 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.

4. 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.