Patents by Inventor Johan René Keegstra

Johan René Keegstra 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: 8931479
    Abstract: An inhaler for delivering dry-powder medicament to a patient from an open blister pocket of a blister pack. The blister pack has a plurality of blister pockets spaced apart in a length direction of the pack and each containing a measured dose of the medicament. The inhaler includes a housing for enclosing used and unused portions of the blister pack together with a medicament dispensing mechanism for opening the blister pockets of the blister pack. The inhaler also includes a manifold through which air can be drawn in use of the inhaler, the manifold including an air inlet for receiving external air, at least one medicament aperture for communicating with an opened pocket of the blister pack to enable entrainment of the medicament by the air drawn through the manifold, and an air outlet for delivery of the entrained medicament to the patient.
    Type: Grant
    Filed: May 17, 2010
    Date of Patent: January 13, 2015
    Assignee: Norton Healthcare Limited
    Inventors: Johan René Keegstra, Krijn Franciscus Marie Zuyderhoudt, Johannes Wilhelmus Maria Sanders
  • Patent number: 8910628
    Abstract: An inhaler for delivering dry-powder medicament to a patient from an open blister pocket of a blister pack. The blister pack is in the form of a flexible elongate strip including a base sheet having a plurality of recesses spaced along its length and a cover sheet peelably sealed to the base sheet to define a plurality of blister pockets each containing a measured dose of the medicament. The inhaler also includes a housing for enclosing used and unused portions of the blister pack together with the medicament dispensing mechanism. The housing defines internal transverse walls extending in the width direction of the blister pack for isolating the used portion of the cover sheet from the unused portion of the blister pack.
    Type: Grant
    Filed: May 17, 2010
    Date of Patent: December 16, 2014
    Assignee: Norton Healthcare Limited
    Inventors: Johan René Keegstra, Krijn Franciscus Marie Zuyderhoudt, Johannes Wilhelmus Maria Sanders
  • Patent number: 8905021
    Abstract: An inhaler for delivering dry-powder medicament to a patient from an open blister pocket of a blister pack. The inhaler includes a housing for enclosing used and unused portions of the blister pack together with a medicament dispensing mechanism. The inhaler also includes a manifold through which air can be drawn in use of the inhaler, the manifold including an air inlet for receiving external air, at least one medicament aperture for communicating with an opened pocket of the blister pack to enable entrainment of the medicament by the air drawn through the manifold, and an air outlet for delivery of the entrained medicament to the patient. The medicament dispensing mechanism includes a guide surface for guiding the cover sheet of the unused portion of the blister pack. The manifold and the guide surface are defined by separate components of the inhaler.
    Type: Grant
    Filed: June 17, 2010
    Date of Patent: December 9, 2014
    Assignee: Norton Healthcare Limited
    Inventors: Johan René Keegstra, Krijn Franciscus Marie Zuyderhoudt, Johannes Wilhelmus Maria Sanders
  • Publication number: 20120260916
    Abstract: An inhaler for delivering dry-powder medicament to a patient from an open blister pocket of a blister pack. The inhaler includes a housing for enclosing used and unused portions of the blister pack together with a medicament dispensing mechanism. The inhaler also includes a manifold through which air can be drawn in use of the inhaler, the manifold including an air inlet for receiving external air, at least one medicament aperture for communicating with an opened pocket of the blister pack to enable entrainment of the medicament by the air drawn through the manifold, and an air outlet for delivery of the entrained medicament to the patient. The medicament dispensing mechanism includes a guide surface for guiding the cover sheet of the unused portion of the blister pack. The manifold and the guide surface are defined by separate components of the inhaler.
    Type: Application
    Filed: May 17, 2010
    Publication date: October 18, 2012
    Inventors: Johan René Keegstra, Krijn Franciscus Marie Zuyderhoudt, Johannes Wilhelmus Maria Sanders
  • Publication number: 20120167881
    Abstract: An inhaler for delivering dry-powder medicament to a patient from an open blister pocket of a blister pack. The blister pack is in the form of a flexible elongate strip including a base sheet having a plurality of recesses spaced along its length and a cover sheet peelably sealed to the base sheet to define a plurality of blister pockets each containing a measured dose of the medicament. The inhaler also includes a housing for enclosing used and unused portions of the blister pack together with the medicament dispensing mechanism. The housing defines internal transverse walls extending in the width direction of the blister pack for isolating the used portion of the cover sheet from the unused portion of the blister pack.
    Type: Application
    Filed: May 17, 2010
    Publication date: July 5, 2012
    Applicant: Norton Healthcare Limited
    Inventors: Johan René Keegstra, Krijn Franciscus Marie Zuyderhoudt, Johannes Wilhelmus Maria Sanders
  • Publication number: 20120097161
    Abstract: An inhaler for delivering dry-powder medicament to a patient from an open blister pocket of a blister pack. The blister pack has a plurality of blister pockets spaced apart in a length direction of the pack and each containing a measured dose of the medicament. The inhaler includes a housing for enclosing used and unused portions of the blister pack together with a medicament dispensing mechanism for opening the blister pockets of the blister pack. The inhaler also includes a manifold through which air can be drawn in use of the inhaler, the manifold including an air inlet for receiving external air, at least one medicament aperture for communicating with an opened pocket of the blister pack to enable entrainment of the medicament by the air drawn through the manifold, and an air outlet for delivery of the entrained medicament to the patient.
    Type: Application
    Filed: May 17, 2010
    Publication date: April 26, 2012
    Applicant: Norton Healthcare Limited
    Inventors: Johan René Keegstra, Krijn Franciscus Marie Zuyderhoudt, Johannes Wilhelmus Marie Sanders
  • Publication number: 20120097162
    Abstract: An inhaler for delivering dry-powder medicament to a patient from an open blister pocket of a blister pack. The inhaler includes a housing for enclosing used and unused portions of the blister pack together with a medicament dispensing mechanism. The inhaler also includes a manifold through which air can be drawn in use of the inhaler, the manifold including an air inlet for receiving external air, at least one medicament aperture for communicating with an opened pocket of the blister pack to enable entrainment of the medicament by the air drawn through the manifold, and an air outlet for delivery of the entrained medicament to the patient. The medicament dispensing mechanism includes a guide surface for guiding the cover sheet of the unused portion of the blister pack. The manifold and the guide surface are defined by separate components of the inhaler.
    Type: Application
    Filed: June 17, 2010
    Publication date: April 26, 2012
    Inventors: Johan René Keegstra, Krijn Franciscus Marie Zuyderhoudt, Johannes Wilhelmus Maria Sanders