Patents by Inventor Michael Pfoser

Michael Pfoser 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: 10668223
    Abstract: A dose indicating mechanism for a drug delivery device for displaying of a dose of a medicament to be dispensed by the drug delivery device includes an elongated housing extending in an axial direction and having at least a first window and a second window that are spaced apart from each other in axial direction. The dose indicating mechanism further includes a dose indicating sleeve movably disposed in the housing and having at least one dose indication coinciding with the first window to display the size of a dose actually set, and an indicator operably engaged with the dose indicating sleeve and axially displaceable relative to the housing to coincide with the second window for indicating an operational status of the dose indicating mechanism.
    Type: Grant
    Filed: September 8, 2014
    Date of Patent: June 2, 2020
    Assignee: Sanofi
    Inventors: Stefan Bayer, Wolfgang Pelzer, Michael Pfoser, Björn Wilden, Philipp Zeitz
  • Patent number: 10632262
    Abstract: This disclosure relates to a drive mechanism for a drug delivery device and to a respective drug delivery device. The drive mechanism includes an elongated housing extending in an axial direction, an actuation member rotatably supported on the housing for setting of the dose. The drive mechanism further includes a last dose sleeve directly rotatably engaged with the actuation member and having at least one stop and a last dose member threadedly engaged with the last dose sleeve. The last dose member is further rotatably fixed to the housing and is operable to engage with the at least one stop to limit a rotation of the last dose sleeve.
    Type: Grant
    Filed: April 8, 2014
    Date of Patent: April 28, 2020
    Assignee: Sanofi
    Inventors: Stefan Bayer, Daniel Berning, Philippe Blank, Wolfgang Pelzer, Michael Pfoser, Björn Wilden
  • Patent number: 10420893
    Abstract: A drug delivery device for dispensing of a dose of a medicament includes an elongated body extending in an axial direction, a cartridge holder to accommodate a cartridge at least partially filled with the medicament and having an axially displaceable piston, and a piston rod to operably engage with the piston of the cartridge to displace the piston in axial distal direction. The drug delivery device further includes a coupling member connected with the cartridge holder and being axially displaceably arranged in the body for retracting the cartridge holder into the body during setting of a dose.
    Type: Grant
    Filed: September 8, 2014
    Date of Patent: September 24, 2019
    Assignee: Sanofi
    Inventors: Stefan Bayer, Philippe Blank, Wolfgang Pelzer, Michael Pfoser, Björn Wilden, Philipp Zeitz
  • Patent number: 10099015
    Abstract: The present invention relates to a drive mechanism for a drug delivery device for dispensing of a dose of a medicament, and to a respective drug delivery device, wherein the drive mechanism comprises: —an elongated housing (30) extending in an axial direction (1, 2), —a piston rod (80) to operably engage with a piston (16) of a cartridge (14) to displace the piston (16) in axial distal direction (1), —a drive sleeve (60) extending in axial direction (1, 2) and being rotatably supported in the housing (30), —a dose setting member (40) rotatably supported on a side wall portion (31) of the housing (30) and being rotatable with respect to an axis (41) extending in radial direction (r), —wherein the drive sleeve (60) is operably releasable from the piston rod (80) and rotatably engageable with the dose setting member (40) for setting of the dose.
    Type: Grant
    Filed: April 8, 2014
    Date of Patent: October 16, 2018
    Assignee: Sanofi
    Inventors: Stefan Bayer, Daniel Berning, Philippe Blank, Wolfgang Pelzer, Michael Pfoser, Björn Wilden
  • Patent number: 10076610
    Abstract: A drive mechanism for a drug delivery device includes an elongated housing extending in an axial direction and a piston rod to operably engage with a piston of a cartridge to displace the piston in an axial distal direction. A drive sleeve is rotatably supported in the housing, operably releasable from the piston rod for setting of a dose, and operably engageable with the piston rod for dispensing of the dose. A dose limiting member is engaged with the drive sleeve and engaged with the piston rod in such a way that it is displaced in axial direction relative to the drive sleeve when the drive sleeve rotates relative to the piston rod during a dose setting procedure. At least one stop is configured to engage with the dose limiting member for limiting the axial displacement of the dose limiting member during the dose setting procedure and to impede further displacement of the drive sleeve relative to the piston rod.
    Type: Grant
    Filed: April 8, 2014
    Date of Patent: September 18, 2018
    Assignee: Sanofi
    Inventors: Stefan Bayer, Daniel Berning, Philippe Blank, Wolfgang Pelzer, Michael Pfoser, Björn Wilden
  • Patent number: 9861758
    Abstract: A drug delivery device for dispensing a dose of a medicament includes an elongated housing extending in an axial direction, and a piston rod to operably engage with a piston of a cartridge to displace the piston in a distal axial direction. The drug delivery device further includes a drive sleeve extending in an axial direction and being rotatable against the action of a spring during a dose setting procedure and a dispensing sleeve rotatably engaged with the piston rod and being displaceable in an axial direction relative to the drive sleeve to engage with the drive sleeve in a torque transmissive way during a dose dispensing procedure.
    Type: Grant
    Filed: April 8, 2014
    Date of Patent: January 9, 2018
    Assignee: Sanofi
    Inventors: Stefan Bayer, Daniel Berning, Philippe Blank, Wolfgang Pelzer, Michael Pfoser, Björn Wilden
  • Publication number: 20160193421
    Abstract: The present invention relates a drug delivery device for dispensing of a dose of a medicament, comprising: an elongated body (20) extending in an axial direction (1, 2), a cartridge holder (13) to accommodate a cartridge (12) at least partially filled with the medicament and having an axially displaceable piston (14), a piston rod (110) to operably engage with the piston (14) of the cartridge (12) to displace the piston (14) in axial distal direction (1), a coupling member (100) connected with the cartridge holder (13) and being axially displaceably arranged in the body (20) for retracting the cartridge holder (13) into the body (20) during setting of a dose.
    Type: Application
    Filed: September 8, 2014
    Publication date: July 7, 2016
    Inventors: Stefan Bayer, Philippe Blank, Wolfgang Pelzer, Michael Pfoser, Björn Wilden, Philipp Zeitz
  • Publication number: 20160193425
    Abstract: The present invention relates to a dose indicating mechanism for a drug delivery device for displaying of a dose of a medicament to be dispensed by the drug delivery device, the dose indicating mechanism comprising: an elongated housing (212) extending in an axial direction (1, 2) and having at least a first window (225) and a second window (235) that are spaced apart from each other in axial direction (1, 2), a dose indicating sleeve (200) movably disposed in the housing (212) and having at least one dose indication (204) coinciding with the first window (225) to display the size of a dose actually set, an indicator (206) operably engaged with the dose indicating sleeve (200) and axially displaceable relative to the housing (212) to coincide with the second window (235) for indicating an operational status of the dose indicating mechanism.
    Type: Application
    Filed: September 8, 2014
    Publication date: July 7, 2016
    Inventors: Stefan Bayer, Wolfgang Pelzer, Michael Pfoser, Björn Wilden, Philipp Zeitz
  • Publication number: 20160067412
    Abstract: The present invention relates to a drive mechanism of a drug delivery device for dispensing of dose of a medicament, the mechanism comprising: —an elongated housing (30) extending in an axial direction (1, 2), —a piston rod (80) to operably engage with a piston (16) of a cartridge (14) to displace the piston (16) in a distal axial direction (1), —a drive sleeve (50) extending in axial direction (1, 2) and being rotatable against the action of a spring (68) during a dose setting procedure, —a dispensing sleeve (70) rotatably engaged with the piston rod (80) and being displaceable in axial direction (1, 2) relative to the drive sleeve (50) to engage with the drive sleeve (50) in a torque transmissive way during a dose dispensing procedure.
    Type: Application
    Filed: April 8, 2014
    Publication date: March 10, 2016
    Inventors: Stefan Bayer, Daniel Berning, Philippe Blank, Wolfgang Pelzer, Michael Pfoser, Björn Wilden
  • Publication number: 20160067414
    Abstract: The present invention relates to a drive mechanism for a drug delivery device and to a respective drug delivery device, wherein the drive mechanism comprises: —an elongated housing (20) extending in an axial direction (1, 2), a piston rod (70) to operably engage with a piston (16) of a cartridge (14) to displace the piston (16) in an axial distal direction (1), —a drive sleeve (50) rotatably supported in the housing (20) and being operably releasable from the piston rod (70) for setting of a dose and being operably engageable with the piston rod (70) for dispensing of the dose, —a dose limiting member (60) engaged with the drive sleeve (50) and engaged with the piston rod (70) in such a way, that it is displaced in axial direction (1, 2) relative to the drive sleeve (50) when the drive sleeve (50) rotates relative to the piston rod (70) during a dose setting procedure, and at least one stop (42, 56; 78) to engage with the dose limiting member (60) for limiting the axial displacement of the dose limiting membe
    Type: Application
    Filed: April 8, 2014
    Publication date: March 10, 2016
    Inventors: Stefan Bayer, Daniel Berning, Philippe Blank, Wolfgang Pelzer, Michael Pfoser, Björn Wilden
  • Publication number: 20160045668
    Abstract: The present invention relates to a drive mechanism for a drug delivery device for dispensing of a dose of a medicament, and to a respective drug delivery device, wherein the drive mechanism comprises: an elongated housing (30) extending in an axial direction (1, 2), a piston rod (80) to operably engage with a piston (16) of a cartridge (14) to displace the piston (16) in axial distal direction (1), a drive sleeve (60) extending in axial direction (1, 2) and being rotatably supported in the housing (30), a dose setting member (40) rotatably supported on a side wall portion (31) of the housing (30) and being rotatable with respect to an axis (41) extending in radial direction (r), wherein the drive sleeve (60) is operably releasable from the piston rod (80) and rotatably engageable with the dose setting member (40) for setting of the dose.
    Type: Application
    Filed: April 8, 2014
    Publication date: February 18, 2016
    Inventors: Stefan Mayer, Daniel Berning, Philippe Blank, Wolfgang Pelzer, Michael Pfoser, Björn Wilden
  • Publication number: 20160045665
    Abstract: The present invention relates to a drive mechanism for a drug delivery device and to a respective drug delivery device, wherein the drive mechanism comprises: —an elongated housing (20) extending in an axial direction (1, 2), an actuation member (30) rotatably supported on the housing (20) for setting of the dose, —a last dose sleeve (110) directly rotatably engaged with the actuation member (30) and having at least one stop (112, 114), a last dose member (120) threadedly engaged with the last dose sleeve (110), further being rotatably fixed to the housing (20) and being operable to engage with the at least one stop (112, 114) to limit a rotation of the last dose sleeve (110).
    Type: Application
    Filed: April 8, 2014
    Publication date: February 18, 2016
    Inventors: Stefan Bayer, Daniel Berning, Philippe Blank, Wolfgang Pelzer, Michael Pfoser, Björn Wilden