Patents by Inventor J. David Farquhar

J. David Farquhar 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: 7041057
    Abstract: A tissue interface device (10) suitable for positioning on or about one or more artificial openings in a biological membrane of an organism and for coupling to a monitor and control unit and a vacuum source. The tissue interface device (10) comprises a housing (100), a sensor channel (130), and a sensor (150). The housing (100) defines an orifice (120), the orifice (120) having an open inlet port (122) on the bottom end (102) of the housing (100) and a distal end (124) that is in fluid communication with the sensor channel (130). The orifice (120) is in fluid communication with fluid that flows from the artificial opening formed in the biological membranes. The sensor channel (130) is for coupling to, and fluid communication therewith, the vacuum source. The sensor (150) is positioned in the sensor channel (130) in a flow path of the fluid for sensing a characteristic of the fluid as it flows out from the artificial opening. The sensor generates a sensor signal representative thereof.
    Type: Grant
    Filed: November 17, 2000
    Date of Patent: May 9, 2006
    Assignee: SpectRx, Inc.
    Inventors: Mark L. Faupel, Krishna Kumar, J. David Farquhar, Mark Vreeke, Alan Smith, Michael Hatch, Teresa Woods
  • Patent number: 6925317
    Abstract: An alignment device and related systems and methods for aligning at least one apparatus with respect to a surface of a tissue. The alignment device comprises a tissue interface member suitable for positioning on the surface of the tissue and mating with the apparatus to maintain alignment of the apparatus during an operation of the apparatus. The alignment device is useful to align various apparatus that are part of a continuous analyte monitoring system.
    Type: Grant
    Filed: June 12, 2000
    Date of Patent: August 2, 2005
    Assignee: SpectRx, Inc.
    Inventors: Mark A. Samuels, Krishna S. Kumar, Garrett T. Robinson, J. David Farquhar, Allison Minton, Diedre Williams, Michael R. Hatch, Alan M. Smith, Teresa Woods, Mark Vreeke
  • Patent number: 6870620
    Abstract: An apparatus embodying the invention includes a probe head with an interrogation surface that is intended to be positioned adjacent or pushed into contact with a target material or tissue. The probe head is constructed to have a plurality of interrogation devices arranged across the face of the interrogation surface. The probe head is also constructed so that the interrogation device can conform to a non-uniform or non-planar surface of the target tissue. In some embodiments, the interrogation surface may have a particular shape that conforms to the shape of a target material. In other embodiments, one or more portions of the interrogation surface could be movable with respect to the remaining portions so that the interrogation surface could be movable with respect to remaining portions so that the interrogation surface can thereby conform to a non-uniform surface. In still other embodiments, a plurality of separately moveable interrogation devices can be arranged across the interrogation surface.
    Type: Grant
    Filed: May 29, 2003
    Date of Patent: March 22, 2005
    Assignee: Spectrx, Inc.
    Inventors: Mark L. Faupel, Shabbir B. Bambot, Tim Harrell, J. David Farquhar, Glenn S. Arche, Walter R. Sanders, Edward L. Kimbrell
  • Publication number: 20040119976
    Abstract: An apparatus embodying the invention includes a probe head with an interrogation surface that is intended to be positioned adjacent or pushed into contact with a target material or tissue. The probe head is constructed to have a plurality of interrogation devices arranged across the face of the interrogation surface. The probe head is also constructed so that the interrogation device can conform to a non-uniform or non-planar surface of the target tissue. In some embodiments, the interrogation surface may have a particular shape that conforms to the shape of a target material. In other embodiments, one or more portions of the interrogation surface could be movable with respect to the remaining portions so that the interrogation surface could be movable with respect to remaining portions so that the interrogation surface can thereby conform to a non-uniform surface. In still other embodiments, a plurality of separately moveable interrogation devices can be arranged across the interrogation surface.
    Type: Application
    Filed: May 29, 2003
    Publication date: June 24, 2004
    Applicant: SpectRx, Inc.
    Inventors: Mark L. Faupel, Shabbir B. Bambot, Tim Harrell, J. David Farquhar, Glenn S. Arche, Walter R. Sanders, Edward L. Kimbrell
  • Patent number: 6577391
    Abstract: An apparatus embodying the invention includes a probe head with an interrogation surface that is intended to be positioned adjacent or pushed into contact with a target material or tissue. The probe head is constructed to have a plurality of interrogation devices arranged across the face of the interrogation surface. The probe head is also constructed so that the interrogation device can conform to a non-uniform or non-planar surface of the target tissue. In some embodiments, the interrogation surface may have a particular shape that conforms to the shape of a target material. In other embodiments, one or more portions of the interrogation surface could be movable with respect to the remaining portions so that the interrogation surface could be movable with respect to remaining portions so that the interrogation surface can the thereby conform to a non-uniform surface. In still other embodiments, a plurality of separately moveable interrogation devices can be arranged across the interrogation surface.
    Type: Grant
    Filed: March 24, 2000
    Date of Patent: June 10, 2003
    Assignee: SpectRx, Inc.
    Inventors: Mark L. Faupel, Shabbir B. Bambot, Tim Harrell, J. David Farquhar, Glenn S. Arche, Walter R. Sanders, Edward L. Kimbrell