Patents by Inventor Larry D. Rigby

Larry D. Rigby 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: 9675562
    Abstract: The present disclosure is drawn to an adhesive peel-forming formulation for dermal delivery of a drug, comprising a drug, a solvent vehicle, and a polymer peel-forming agent. The solvent vehicle can comprise a volatile solvent system comprising one or more volatile solvent, and a non-volatile solvent system comprising two or more non-volatile solvents. The non-volatile solvent system can have a solubility with respect to the drug that is within a window of operable solubility such that the drug is deliverable at therapeutically effective rates over a sustained period of time.
    Type: Grant
    Filed: November 5, 2014
    Date of Patent: June 13, 2017
    Assignee: Crescita Therapeutics Inc.
    Inventors: Jie Zhang, Kevin S. Warner, Michael A. Ashburn, Larry D. Rigby, Suyi Niu
  • Publication number: 20150126481
    Abstract: The present disclosure is drawn to an adhesive peel-forming formulation for dermal delivery of a drug, comprising a drug, a solvent vehicle, and a polymer peel-forming agent. The solvent vehicle can comprise a volatile solvent system comprising one or more volatile solvent, and a non-volatile solvent system comprising two or more non-volatile solvents. The non-volatile solvent system can have a solubility with respect to the drug that is within a window of operable solubility such that the drug is deliverable at therapeutically effective rates over a sustained period of time.
    Type: Application
    Filed: November 5, 2014
    Publication date: May 7, 2015
    Inventors: Jie Zhang, Kevin S. Warner, Michael A. Ashburn, Larry D. Rigby, Suyi Niu
  • Patent number: 8907153
    Abstract: The present invention is drawn to adhesive peel-forming formulations for dermal delivery of a drug. The formulation can include a drug, a solvent vehicle, and a peel-forming agent. The solvent vehicle can include a volatile solvent system having one or more volatile solvent, and a non-volatile solvent system having one or more non-volatile solvent, wherein the non-volatile solvent system has a solubility for the drug that is within a window of operable solubility for the drug such that the drug can be delivered at therapeutically effective rates over a sustained period of time. The formulation can have a viscosity suitable for application to a skin surface prior to evaporation of the volatile solvents system. When applied to the skin, the formulation can form a solidified peelable layer after at least a portion of the volatile solvent system is evaporated.
    Type: Grant
    Filed: June 6, 2005
    Date of Patent: December 9, 2014
    Assignee: Nuvo Research Inc.
    Inventors: Jie Zhang, Kevin S. Warner, Michael A. Ashburn, Larry D. Rigby, Suyi Niu
  • Patent number: 5125902
    Abstract: A sheath and obturator is provided for facilitating the insertion of certain medical devices into a patient's vascular system, a vein, or venous system and in particular an in vivo extrapulmonary blood gas exchange device having a bundle comprised of a plurality of elongated gas permeable tubes being potted at each end and enclosed within a respective air tight proximal and distal chamber. The sheath is hollow and substantially tubular with a tapered receiving portion and a nontapered, curved entry portion. The obturator has a tip at the distal end of the obturator and a trip at the proximal end with an elongate member therebetween. The sheath is configured to receive the obturator in sliding engagement such that when the obturator is fully inserted within the sheath, the tip closes the opening at the entry end of the sheath and protrudes slightly therefrom. The obturator has a vent which provides a passage from space exterior to the sheath into the hollow interior of the sheath.
    Type: Grant
    Filed: March 2, 1990
    Date of Patent: June 30, 1992
    Assignee: CardioPulmonics, Inc.
    Inventors: Gaylord L. Berry, J. D. Mortensen, Mitchell D. Baldwin, Larry D. Rigby
  • Patent number: 4850958
    Abstract: An in vivo extrapulmonary blood gas exchange device having a bundle comprised of a plurality of elongated gas permeable tubes being bound at each end and enclosed within a respective air tight proximal and distal chamber. A dual lumen tube having an outer lumen and an inner lumen is situated relative to the gas permeable tubes such that the outer lumen terminates within the proximal chamber and such that the inner lumen terminates within the distal chamber. The apparatus includes means for selectively adjusting the overall, outside diameter of the bundle of gas permeable tubes to provide either a furled, small insertion diameter when inserting the apparatus into the venae cavae of a patient or an unfurled, expanded oxygenation diameter after the apparatus is in place within the venae cavae and the bundle of gas permeable tubes is deployed therein. The apparatus is inserted into the patient through a single incision at one of the right external iliac, common femoral or internal jugular veins.
    Type: Grant
    Filed: June 8, 1988
    Date of Patent: July 25, 1989
    Assignee: Cardiopulmonics, Inc.
    Inventors: Gaylord Berry, J. D. Mortensen, Larry D. Rigby