Patents by Inventor Stephen R. Hanson

Stephen R. Hanson 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).

  • Publication number: 20200397981
    Abstract: Refillable compression-activated pump devices having a first reservoir, a second reservoir connected by a one-way valve and methods of using the pump devices are provided. The compression-activated pumps can be filled with fluid containing a drug, pressurized by compressing the first or second reservoir to deliver the drug to another device, and refilled when drug is depleted.
    Type: Application
    Filed: June 18, 2020
    Publication date: December 24, 2020
    Inventor: Stephen R. HANSON
  • Publication number: 20190308000
    Abstract: Dual-lumen devices for delivery of drugs to a drug reservoir, blood vessel or vascular graft and methods of using the same are provided. In one aspect, devices comprising a dual-lumen needle and dual-lumen catheter are provided for filling and removing drug formulations from a drug reservoir are provided. The drug reservoir can optionally be connected to or associated with a vascular graft or blood vessel for controlled delivery of the drug.
    Type: Application
    Filed: April 3, 2019
    Publication date: October 10, 2019
    Inventor: Stephen R. HANSON
  • Publication number: 20180153810
    Abstract: Provided are prophylactic and therapeutic methods of treatment of subjects for the purpose of inhibiting vaso-occlusive events, including embolism, by administering agents, including anagrelide and anagrelide derivatives, which reduce the number of circulating platelets to low normal or to below normal levels. Methods and pharmaceutical preparations comprising such agents are provided.
    Type: Application
    Filed: July 12, 2017
    Publication date: June 7, 2018
    Inventors: Paul F. GLIDDEN, Alison J. PILGRIM, Stephen R. HANSON
  • Publication number: 20170252447
    Abstract: A novel treatment for dialysis patients needing a hemodialysis graft by providing a therapeutic formulation that can be infused to such patients, which may mitigate graft-related neointimal hyperplasia, thrombosis, and/or related mechanisms of graft failure. The therapeutic formulation may include sirolimus and/or other olimus drug(s). The therapeutic formulation may be infusible and stable in solution for such a pharmaceutical and therapeutic purpose. The therapeutic formulation may have a pharmaceutically acceptable shelf life such that the pharmaceutical agent remains chemically stable (e.g., does not precipitate) for a suitable number of days (e.g., at least 30 days, at least 60 days, at least 90 days, etc.) at 37° C. The therapeutic formulation may be suitable for application to a patient's blood vessel/vascular graft via an infusion pump. For instance, the therapeutic formulation may be suitable for application to the patient's hemodialysis graft location.
    Type: Application
    Filed: March 1, 2017
    Publication date: September 7, 2017
    Inventors: Ronald J. Shebuski, Stephen R. Hanson, Christopher F. Toombs
  • Patent number: 9750698
    Abstract: Provided are prophylactic and therapeutic methods of treatment of subjects for the purpose of inhibiting vaso-occlusive events, including embolism, by administering agents, including anagrelide and anagrelide derivatives, which reduce the number of circulating platelets to low normal or to below normal levels. Methods and pharmaceutical preparations comprising such agents are provided.
    Type: Grant
    Filed: May 31, 2016
    Date of Patent: September 5, 2017
    Assignee: BioVascular, Inc.
    Inventors: Paul F. Glidden, Alison J. Pilgrim, Stephen R. Hanson
  • Publication number: 20170112767
    Abstract: Provided are prophylactic and therapeutic methods of treatment of subjects for the purpose of inhibiting vaso-occlusive events, including embolism, by administering agents, including anagrelide and anagrelide derivatives, which reduce the number of circulating platelets to low normal or to below normal levels. Methods and pharmaceutical preparations comprising such agents are provided.
    Type: Application
    Filed: May 31, 2016
    Publication date: April 27, 2017
    Inventors: Paul F. GLIDDEN, Alison J. PILGRIM, Stephen R. HANSON
  • Patent number: 9381198
    Abstract: Provided are prophylactic and therapeutic methods of treatment of subjects for the purpose of inhibiting vaso-occlusive events, including embolism, by administering agents, including anagrelide and anagrelide derivatives, which reduce the number of circulating platelets to low normal or to below normal levels. Methods and pharmaceutical preparations comprising such agents are provided.
    Type: Grant
    Filed: March 27, 2015
    Date of Patent: July 5, 2016
    Assignee: BioVascular, Inc.
    Inventors: Paul F. Glidden, Alison J. Pilgrim, Stephen R. Hanson
  • Publication number: 20160051552
    Abstract: Provided are prophylactic and therapeutic methods of treatment of subjects for the purpose of inhibiting vaso-occlusive events, including embolism, by administering agents, including anagrelide and anagrelide derivatives, which reduce the number of circulating platelets to low normal or to below normal levels. Methods and pharmaceutical preparations comprising such agents are provided.
    Type: Application
    Filed: March 27, 2015
    Publication date: February 25, 2016
    Inventors: Paul F. GLIDDEN, Alison J. PILGRIM, Stephen R. HANSON
  • Patent number: 9040483
    Abstract: Provided are prophylactic and therapeutic methods of treatment of subjects for the purpose of inhibiting vaso-occlusive events, including embolism, by administering agents, including anagrelide and anagrelide derivatives, which reduce the number of circulating platelets to low normal or to below normal levels. Methods and pharmaceutical preparations comprising such agents are provided.
    Type: Grant
    Filed: July 17, 2012
    Date of Patent: May 26, 2015
    Assignee: BIOVASCULAR, INC.
    Inventors: Paul F. Glidden, Alison J. Pilgrim, Stephen R. Hanson
  • Patent number: 8808255
    Abstract: Embodiments provide a drug delivery cuff including a drug reservoir. In an embodiment, an integrated drug pump may be provided. A drug delivery cuff in accordance with an embodiment may be placed around any suitable vascular graft (e.g., ePTFE) or directly around any natural tissue conduit (e.g., perivascularly), at any position along the graft/conduit or overlapping a graft and conduit, either at the time of graft surgical placement or separate therefrom.
    Type: Grant
    Filed: December 12, 2008
    Date of Patent: August 19, 2014
    Assignee: Oregon Health & Science University
    Inventor: Stephen R. Hanson
  • Patent number: 8721711
    Abstract: Embodiments of the present invention provide a device for the local delivery of a substance into a natural tissue conduit in the mammalian body, having a first element capable of contacting the lumen of the conduit and a second element which overlays first element, a reservoir being formed between the first element and the second element, the interior of the reservoir being capable of fluid communication with the conduit such that a substance placed in the reservoir is delivered into the conduit. In embodiments, the first element may be fully or partially microporous or a separate intermediate microporous membrane may be provided. Also provided are methods of mixing or moving a drug within a reservoir using various mixing elements. Also provided are methods of locally delivering a substance into a natural tissue conduit in the mammalian body utilizing a device in accordance with embodiments of the present invention.
    Type: Grant
    Filed: June 20, 2007
    Date of Patent: May 13, 2014
    Assignee: Oregon Health & Science University
    Inventor: Stephen R. Hanson
  • Publication number: 20130022671
    Abstract: Provided are prophylactic and therapeutic methods of treatment of subjects for the purpose of inhibiting vaso-occlusive events, including embolism, by administering agents, including anagrelide and anagrelide derivatives, which reduce the number of circulating platelets to low normal or to below normal levels. Methods and pharmaceutical preparations comprising such agents are provided.
    Type: Application
    Filed: July 17, 2012
    Publication date: January 24, 2013
    Inventors: Paul F. Glidden, Alison J. Pilgrim, Stephen R. Hanson
  • Publication number: 20100268188
    Abstract: Embodiments provide a drug delivery cuff including a drug reservoir. In an embodiment, an integrated drug pump may be provided. A drug delivery cuff in accordance with an embodiment may be placed around any suitable vascular graft (e.g., ePTFE) or directly around any natural tissue conduit (e.g., perivascularly), at any position along the graft/conduit or overlapping a graft and conduit, either at the time of graft surgical placement or separate therefrom.
    Type: Application
    Filed: December 12, 2008
    Publication date: October 21, 2010
    Applicant: OREGON HEALTH & SCIENCE UNIVERSITY
    Inventor: Stephen R. Hanson
  • Publication number: 20100008913
    Abstract: Provided are prophylactic and therapeutic methods of treatment of subjects for the purpose of inhibiting vaso-occlusive events, including embolism, by administering agents, including anagrelide and anagrelide derivatives, which reduce the number of circulating platelets to low normal to below normal levels. Methods and pharmaceutical preparations comprising such agents are provided.
    Type: Application
    Filed: July 22, 2009
    Publication date: January 14, 2010
    Inventor: Stephen R. Hanson
  • Publication number: 20090324710
    Abstract: Provided are prophylactic and therapeutic methods of treatment of subjects for the purpose of inhibiting vaso-occlusive events, including embolism, by administering agents, including anagrelide and anagrelide derivatives, which reduce the number of circulating platelets to low normal or to below normal levels. Methods and pharmaceutical preparations comprising such agents are provided.
    Type: Application
    Filed: June 16, 2009
    Publication date: December 31, 2009
    Inventors: Paul F. Glidden, Alison J. Pilgrim, Stephen R. Hanson
  • Publication number: 20080319425
    Abstract: Embodiments of the present invention provide a device for the local delivery of a substance into a natural tissue conduit in the mammalian body, having a first element capable of contacting the lumen of the conduit and a second element which overlays first element, a reservoir being formed between the first element and the second element, the interior of the reservoir being capable of fluid communication with the conduit such that a substance placed in the reservoir is delivered into the conduit. In embodiments, the first element may be fully or partially microporous or a separate intermediate microporous membrane may be provided. Also provided are methods of mixing or moving a drug within a reservoir using various mixing elements. Also provided are methods of locally delivering a substance into a natural tissue conduit in the mammalian body utilizing a device in accordance with embodiments of the present invention.
    Type: Application
    Filed: June 20, 2007
    Publication date: December 25, 2008
    Applicant: OREGON HEALTH & SCIENCE UNIVERSITY
    Inventor: Stephen R. Hanson
  • Patent number: 7223583
    Abstract: The present invention relates to novel antithrombotic variants of thrombin or fragments thereof that are capable of proteolytically activating protein C, but which are substantially free of fibrinogen cleavage activity. The present invention further relates to variant polypeptides that may be cleaved to yield active thrombin variants. The present invention also relates to methods of inhibiting thrombus formation in an animal or human subject by delivering an antithrombotic variant thrombin of the present invention to the blood of the subject. The present invention relates also to methods that use the novel variant thrombins for determining the level of protein C activation in a blood sample, or the thrombogenic potential of a patient.
    Type: Grant
    Filed: October 31, 2003
    Date of Patent: May 29, 2007
    Assignee: Emory University
    Inventors: Andras Gruber, Stephen R. Hanson, Enrico De Cera
  • Patent number: 7137039
    Abstract: A device driver (GRAPHICS, NETWORK, H2IO, IO2L, SERIAL) for use in a computer system comprising a processor (P), memory (M) and a device (GRAPHICS, NETWORK, H2IO, IO2L, SERIAL) operatively coupled to the computer system, the device driver being operable to control the device to monitor an operational status of the device, and consequent upon a change in the operational status to generate a fault report data indicating whether the change of status was caused internally within the device or externally by another connected device which caused the change of operational status to occur. The fault reports may also include an indication of the operational status of the device. Furthermore, if the fault report data indicates that the change of status was caused externally, the device driver may generate fault direction information indicative of an apparent direction on a connection between the device and the other device suspected as causing the indicated external fault.
    Type: Grant
    Filed: February 14, 2002
    Date of Patent: November 14, 2006
    Assignee: Sun Microsystems, Inc.
    Inventors: Paul Durrant, Stephen R Hanson, David S Gordon, Jeremy Harris
  • Patent number: 7101840
    Abstract: A method of forming a polymeric drug formulation in which a water-soluble drug is blended with a water-insoluble tissue-compatible polymer that is miscible in the solid phase with the drug, and with a poly(alkylene oxide), in a solvent system capable of forming a homogeneous solution of the drug, the tissue-compatible polymer and the poly(alkylene oxide), after which the solution is added to a non-solvent for the drug, the tissue-compatible polymer and the poly(alkylene oxide), so that a microdomain-separated solid co-precipitate of the drug, the tissue-compatible polymer and the poly(alkylene oxide) is formed, wherein the poly(alkylene oxide) is blended in an amount effective to form phase-separated microdomains in said co-precipitate.
    Type: Grant
    Filed: June 21, 2002
    Date of Patent: September 5, 2006
    Assignee: Rutgers, The State University
    Inventors: Stephen Brocchini, Stephen R. Hanson, Joachim B. Kohn
  • Patent number: 7100006
    Abstract: A method and mechanism for generating a snapshot in a computing system. On initiating a snapshot of a first storage, the content of a portion of the first storage that includes at least one block is copying to snapshot storage and a copied indication for each copied block is recording in a copy map. Responsive to any write request to a block for which no copied indication has been recorded in the copy map, the content of the block is copied to the snapshot storage, prior to writing to that block. The content of other blocks for which no copied indication has been recorded in the copy map is successively copied to the snapshot storage. A copied indication for each copied block is recorded in the copy map. The successive copying can be performed as a background task.
    Type: Grant
    Filed: January 18, 2002
    Date of Patent: August 29, 2006
    Assignee: Sun Microsystems, Inc.
    Inventors: Paul Durrant, Stephen R Hanson