Patents by Inventor R. Rox Anderson

R. Rox Anderson 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).

  • Patent number: 5735844
    Abstract: A method and apparatus for simultaneously effecting the removal of multiple hairs from a skin region by using light energy to destroy hair follicles in the region. Light energy is applied to the region through an applicator which converges the light energy to enhance destruction of desired portions of the follicles, is preferably pressed against the skin region to deform the upper layers of the skin reducing the distance from the skin surface to portions of hair follicles which are to be destroyed, including the bulge and papilla of the follicles, and which applicator is preferably cooled to minimize or eliminate thermal damage to the epidermis in the region being irradiated. Parameters for the irradiation, including pulse duration, are selected to effect complete damage of desired portions of the hair follicles in the region with minimal damage to surrounding tissue and to the patient's epidermis.
    Type: Grant
    Filed: January 30, 1996
    Date of Patent: April 7, 1998
    Assignee: The General Hospital Corporation
    Inventors: R. Rox Anderson, Melanie Grossman, William Farinelli
  • Patent number: 5649923
    Abstract: A method for conducting laser energy to a site includes steps of bringing the proximal end of a flexible tube near the site, filling at least a proximal portion of the tube with a liquid by introducing the liquid into the tube, allowing a portion of the liquid to flow out from the proximal end of the tube toward the site, and directing laser energy from a laser energy source into the distal end of the tube, whereby a portion of the laser energy emerges from the proximal end of the tube at the site. Also, such a method in which the liquid is a radiographic contrast medium. Also, such a method for removing an obstruction from a blood vessel in an animal.
    Type: Grant
    Filed: April 8, 1994
    Date of Patent: July 22, 1997
    Assignee: The General Hospital Corporation
    Inventors: Kenton W. Gregory, R. Rox Anderson
  • Patent number: 5595568
    Abstract: A method and apparatus for simultaneously removing multiple hair follicles from a skin region of a patient. The method includes the step of illuminating the hair follicles with a large-area, optical radiation field by way of a transparent contact device proximal to the skin region. This allows portions of the hair follicles to be heated and then removed, while the surrounding skin region is left relatively free of injury.
    Type: Grant
    Filed: February 1, 1995
    Date of Patent: January 21, 1997
    Assignee: The General Hospital Corporation
    Inventors: R. Rox Anderson, Melanie Grossman, William Farinelli
  • Patent number: 5571216
    Abstract: A method of permanently joining a first collagen-containing material to a second collagen-containing material, each material having free ends of collagen fibrils at a surface, by bringing the free ends of collagen fibrils at the surfaces of the first and second materials into contact, heating the first and second materials for a time and to a temperature sufficient to permanently join the first and second materials at an area of contact of the free ends, wherein the temperature is above a melting temperature of the collagen fibril free ends, and below a melting temperature of intact collagen fibrils, such that collagen fibrils in the first and second materials are not denatured except at their free ends, and optionally thereafter crosslinking the collagen along the area of contact.
    Type: Grant
    Filed: January 19, 1994
    Date of Patent: November 5, 1996
    Assignee: The General Hospital Corporation
    Inventor: R. Rox Anderson
  • Patent number: 5558667
    Abstract: An apparatus and method is disclosed for treating vascular lesions. In the preferred embodiment, an intracavity, frequency doubled Nd:YAG laser is used to generate output pulses having a duration of 0.5 to 10.0 milliseconds. This laser output is used to irradiate the lesions. The laser energy is absorbed in the blood of the vein, causing it to coagulate and collapse. The long pulse duration helps to minimize bleeding while controlling thermal damage to surrounding tissue.
    Type: Grant
    Filed: January 6, 1995
    Date of Patent: September 24, 1996
    Assignee: Coherent, Inc.
    Inventors: J. Michael Yarborough, R. Rox Anderson, George Marcellino, Gerald M. Mitchell
  • Patent number: 5556612
    Abstract: Method for treating a proliferative skin disorder, such as psoriasis, in a human patient having affected and non-affected areas of skin. The method comprises the steps of: (1) topically applying a sunscreen providing photo-protection to the affected and non-affected areas of skin; (2) waiting for a time period sufficient for the skin of the affected areas to be substantially sloughed off; and, (3) exposing the affected and non-affected areas of skin of the patient to a selected level of optical radiation. The level of radiation is chosen to be sufficient to treat the affected areas of skin and insufficient to cause significant damage to the non-affected areas of skin. The method enhances effectiveness and safety of treatment by providing preferential photo-protection to the non-affected skin areas, and may be used for phototherapy, photochemotherapy, or photodynamic therapy.
    Type: Grant
    Filed: March 15, 1994
    Date of Patent: September 17, 1996
    Assignee: The General Hospital Corporation
    Inventors: R. Rox Anderson, Luciann Hruza, Nikiforos Kollias
  • Patent number: 5527308
    Abstract: An illuminator including a differential optical radiator and a laser fiber disposed within the differential optical radiator. The differential optical radiator includes a first region that has a first level of reflectivity and a first level of transmissivity and a second region that has a second, higher level of reflectivity and a second, lower level of transmissivity. The first and second regions are positioned such and their reflectivities and transmissivities are chosen such that the radiator produces a substantially uniform pattern of illumination from the first and second regions.In another embodiment, the illuminator includes an expandable radiator and a laser fiber disposed within the expandable radiator. The reflectivity of the expandable radiator is such that the illumination at the outer surface of the expandable radiator is substantially uniform.
    Type: Grant
    Filed: February 1, 1995
    Date of Patent: June 18, 1996
    Assignee: The General Hospital Corporation
    Inventors: R. Rox Anderson, Nayantara Bhatta, Scott Prahl, Peter J. Dwyer
  • Patent number: 5456260
    Abstract: The method of the present invention is directed at detecting non-invasively and in vivo the rate of proliferation of epithelial cells in a human patient. The method is based on determining the optical spectra, preferably the fluorescence excitation spectra, from affected and non-affected areas of epithelial cells, and then comparing the two spectra from these regions. In particular, applicants have discovered that when human or animal skin is irradiated with light centered near 295 nm, fluorescence having a distinct maximum near 360 nm is induced.
    Type: Grant
    Filed: April 5, 1994
    Date of Patent: October 10, 1995
    Assignee: The General Hospital Corporation
    Inventors: Nikiforos Kollias, Robert Gillies, R. Rox Anderson
  • Patent number: 5304171
    Abstract: A method for conducting laser energy to a site includes steps of bringing the proximal end of a flexible tube near the site, filling at least a proximal portion of the tube with a liquid by introducing the liquid into the tube, allowing a portion of the liquid to flow out from the proximal end of the tube toward the site, and directing laser energy from a laser energy source into the distal end of the tube, whereby a portion of the laser energy emerges from the proximal end of the tube at the site. Also, such a method in which the liquid is a radiographic contrast medium. Also, such a method for removing an obstruction from a blood vessel in an animal.
    Type: Grant
    Filed: February 2, 1993
    Date of Patent: April 19, 1994
    Inventors: Kenton W. Gregory, R. Rox Anderson
  • Patent number: 5300097
    Abstract: Disclosed is a therapeutic device including an optical source including means for generating ultraviolet (UV) radiation, and a light delivery apparatus. The light delivery apparatus includes a body member and a plurality of optical fibers extending therefrom. Each of the optical fibers includes a proximal tip affixed to the body member, a distal tip at the end of the fiber opposite the proximal tip, and means for coupling the generated radiation from the proximal tips of the fibers through the fibers, and to the distal tips. The distal tips are characterized by a radius of curvature in the range 0.25 to 2.0 mm. The coupling means includes a flexible central core disposed within a flexible outer cladding. The central core has a diameter in the range of 0.1 mm to 1.0 mm, and the cladding has a refraction less than the index of refraction of the core.
    Type: Grant
    Filed: September 18, 1992
    Date of Patent: April 5, 1994
    Inventors: Ethan A. Lerner, R. Rox Anderson, Michael R. Lerner