Patents by Inventor Thomas S. MacGregor, III

Thomas S. MacGregor, III has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Medical laser treatment system and method
    Patent number: 5558668
    Abstract: An improved medical laser treatment system and method generates a beam of laser energy at a predetermined wavelength; transmits the beam of laser energy along a path to a medical treatment site; delivers to the medical treatment site an insufflating gas which is absorbent at the predetermined wavelength; and introduces into the path of the beam of laser energy a non-absorbent purge gas which is transparent to the predetermined wavelength of the laser, at a flow rate for opposing the influx of insufflating gas to reduce the resonant absorption of the laser beam energy.
    Type: Grant
    Filed: October 11, 1994
    Date of Patent: September 24, 1996
    Assignee: PLC Medical Systems, Inc.
    Inventors: Donald M. Lankford, Thomas S. MacGregor, III, Charles C. Negus