Laser therapeutic apparatus

• US 5,231,984 A
• Filed: 04/26/1991
• Issued: 08/03/1993
• Est. Priority Date: 12/11/1989
• Status: Expired due to Fees

• Current Assignee: LASB Laser Corporation
• Original Assignee: LASB Laser Corporation
• Inventors: Santana-Blank, Luis A.
• Primary Examiner(s): Shay, David M.
• Application Number:
  US07/675,918
• Time in Patent Office: 830 Days
• Field of Search: 128/395-398, 606/2-19
• US Class Current: 607/99
• CPC Class Codes: A61N 2005/0651 Diodes
• CPC Class Codes: A61N 5/06 using light
• CPC Class Codes: A61N 5/0616 Skin treatment other than tanning

Abstract

An apparatus and method (10) for treating cancerous tissues and other systemic diseases through the application of an infrared laser beam to the target tissue through the biological circuit of the patient. The output of an oscillator (20) is connected to the input of a frequency selector (30) to selectively adjust the pulse frequency. The pulse train (40) is selected to be between 0.5 MHz and 7.5 MHz with a relatively low duty cycle to avoid thermic energy from making the process an uncomfortable one. The pulse signal, after being amplified, is fed to a transistor (50) that drives a laser diode (60) thereby modulating the output beam. An ultraviolet filter (70) is used to block any unwanted harmonic byproduct. The laser beam is applied substantially perpendicularly to the surface of the patient'"'"'s skin and in the area in close proximity to the VICC biological circuit that would more efficiently carry the laser energy to the target tissue. The procedure is repeated periodically and its process monitored through conventional magnetic resonance images techniques or other accepted methods.

Claims

1. An apparatus for treating cancerous tissues and other systemic diseases in humans and animals of the type that includes an infra-red laser diode and an oscillator circuit for generating pulses that activate said diode generating an infra-red laser radiation that is applied through the user'"'"'s VICC biological circuit and the improvement comprising means for generating said pulses with a frequency between 0.5 megahertz and 7.5 megahertz with a relatively low radiant power so that thermic radiation as a byproduct is kept to a minimum.

2. The apparatus set forth in claim 1 further including filter means for limiting the application to a user of non-infrared radiation.

3. The apparatus set forth in claim 2 further including programmable timing means for pre-setting times of application.