Patents by Inventor Stefan Wendland

Stefan Wendland 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: 10293114
    Abstract: The invention relates to a drug delivery device comprising: a syringe with a body from which a needle extends and an inner sheath; a piston rod comprising a piston and an actuation head, a support sheath for holding the body. It is envisaged that the support sheath and the actuation head comprise corresponding indicators.
    Type: Grant
    Filed: April 29, 2013
    Date of Patent: May 21, 2019
    Assignee: Sanofi-Aventis Deutschland GMBH
    Inventors: Stefan Wendland, Anke Liewald, Frank Ricther, Caroline Stephan
  • Publication number: 20190134309
    Abstract: An auto-injector device comprises a stopper for expelling a medicament out of a medicament reservoir; a driving element which has a first configuration and a second configuration and is configured to change shape from the first configuration to the second configuration when the temperature of the driving element is raised above a shape change temperature, so as to drive the stopper of the syringe mechanism through the medicament reservoir; and a heating mechanism configured to actively heat the driving element. The heating mechanism is a chemical heating element configured to generate heat through an exothermic process or comprises a fluid reservoir for retaining a fluid; a heater configured to heat the fluid in the fluid reservoir; a pump configured to expel the fluid out of the fluid reservoir; and a connecting conduit arranged to carry the fluid from the fluid reservoir to the driving element.
    Type: Application
    Filed: November 21, 2016
    Publication date: May 9, 2019
    Inventors: Stefan Wendland, Michael Harms
  • Patent number: 10279130
    Abstract: Described is a medicament delivery device (100, 200) comprising a case (105, 205) adapted to hold a container with a medicament and a needle (300), a needle sleeve (120, 220) telescopically coupled to the case (105, 205) and having an extended position relative to the case (105, 205) in which the needle (300) is covered and a retracted position relative to the case (105, 205) in which the needle (300) is exposed, and a delivery initiation indicator providing a visual feedback of an initiation of a delivery of the medicament when the needle sleeve (120, 220) is in the retracted position.
    Type: Grant
    Filed: October 1, 2013
    Date of Patent: May 7, 2019
    Assignee: Sanofi-Aventis Deutschland GMBH
    Inventors: Carsten Mosebach, Stefan Wendland
  • Publication number: 20190009037
    Abstract: The present disclosure relates to an injection device. The injection device comprises a cap and a body for holding a syringe that has a needle at one end. The cap is removably attached to the body and has a needle shield to receive the needle. The injection device further comprises an actuator that is slidable relative to the body in the longitudinal direction of the body to urge the needle shield away from the body.
    Type: Application
    Filed: November 21, 2016
    Publication date: January 10, 2019
    Inventors: Stefan Wendland, Michael Harms
  • Publication number: 20190001070
    Abstract: The present disclosure relates to an injection device. The injection device comprises a body for holding a syringe having a needle extending from one end thereof and a cap that is removably attached to the body. The cap has a needle shield to cover said needle. The injection device further comprises a biasing member and a lock. The biasing member is configured to urge at least a part of the cap away from the body. The lock is moveable between a locked state, wherein the lock holds the cap and body together, and an unlocked state, wherein the cap and body are able to move apart.
    Type: Application
    Filed: November 21, 2016
    Publication date: January 3, 2019
    Inventors: Stefan Wendland, Michael Harms, Uwe Dasbach, Jan Torben Eickriede
  • Publication number: 20180353699
    Abstract: A supplementary device is configured to be attached to a drug delivery device. The supplementary device comprises a non-contact sensor configured to output signals indicative of the position of a moveable component within the drug delivery device. The supplementary device further comprises a processor configured to receive the signals output from the non-contact sensor. This processor is additionally configured to determine, based on the signals, whether the drug delivery device is in a pre-activation state or a post-activation state.
    Type: Application
    Filed: September 20, 2016
    Publication date: December 13, 2018
    Inventors: Michael Helmer, Stefan Wendland
  • Publication number: 20180353697
    Abstract: An auto-injector for delivering a liquid medicament comprising: a housing arranged to contain a syringe and a piston for sealing the syringe and displacing the medicament, the housing having a proximal end and a distal end intended to be applied against an injection site, wherein the syringe comprises: a plurality of plunger elements arranged along a length of the syringe between the proximal end of the housing and the piston, each of the plurality of plunger elements having a longitudinal axis; and a cord arranged to connect the plurality of plunger elements, wherein the plunger elements are configured to become aligned along their axes to push the piston towards the distal end to displace the medicament when the cord is acted on by a driving force.
    Type: Application
    Filed: November 21, 2016
    Publication date: December 13, 2018
    Inventors: Stefan Wendland, Michael Harms
  • Publication number: 20180353703
    Abstract: An auto-injector device comprises a cap removal mechanism which comprises a retractable component which is slidably mounted within a housing of the device, and a cap-removal actuator to push the retractable component out of the housing to remove a cap from the device; a dispense mechanism which comprises a driving element to expel a medicament from the device; and a dispense button which activates the cap removal mechanism when pressed a first time, engages with the dispense mechanism when released, and activates the dispense mechanism when pressed a second time. The dispense mechanism comprises an engaging element configured to engage with the dispense button when the dispense button has been pressed for a first time and released.
    Type: Application
    Filed: November 21, 2016
    Publication date: December 13, 2018
    Inventors: Stefan Wendland, Michael Harms
  • Publication number: 20180353693
    Abstract: The present invention relates to an injection device. The injection device comprises a body (11) for holding a syringe that has a needle (17) at one end and a cap (21) that is removably attached to the body. The cap (21) has a needle shield to cover said needle. The injection device further comprises a gear assembly comprising a first rotary gear (29) and a first linear gear (28) to engage with the first rotary gear. The gear assembly is configured such that rotation of the first rotary gear drives the first linear gear to urge the needle shield away from the body. An actuator is provided that is configured to rotate the first rotary gear.
    Type: Application
    Filed: November 21, 2016
    Publication date: December 13, 2018
    Inventors: Stefan Wendland, Michael Harms
  • Publication number: 20180344945
    Abstract: The present disclosure relates to an injection device. The injection device comprises a cap and a body for holding a syringe that has a needle at one end. The cap is removably attached to the body and comprises a needle shield to cover said needle. The injection device further comprises a configuration adapted to increase the gas pressure at an interface of the injection device that is disposed between the body and a portion of the cap to urge the body and said portion of the cap apart.
    Type: Application
    Filed: November 21, 2016
    Publication date: December 6, 2018
    Inventors: Stefan WENDLAND, Michael HARMS
  • Publication number: 20180344944
    Abstract: The present invention relates to an auto-injector device (10) for delivering a liquid medicament, the auto injector comprising an injector body, a syringe (18) received in the injector body, a needle (17) disposed in a first end of syringe to extend toward an opening of the injector body, a needle shield (25) removeably attached to the syringe to enclose the needle and an injector cap removeably received in the opening of the injector body to enclose the needle shield. The injector cap (12) comprises at least one engaging element to engage with the needle shield and the needle shield comprises a rupture portion. The at least one engaging element is configured to rupture the rupture portion as the cap is removed from the body. The at least one engaging element is configured to engage with at least a portion of the needle shield to retain at least a portion of the needle shield in the cap when the cap is removed from the body.
    Type: Application
    Filed: November 21, 2016
    Publication date: December 6, 2018
    Inventors: Stefan Wendland, Michael Harms
  • Publication number: 20180339113
    Abstract: An injection device comprising: a housing arranged to contain a liquid medicament or a medicament cartridge; an electrical coil arranged at the housing; a removable cap arranged to be removably engaged with an end of the housing; and a magnet arranged within the removable cap; wherein when the removable cap is disengaged from the housing, the magnet moves with respect to the electrical coil such that electrical voltage is induced in the electrical coil and a current is generated.
    Type: Application
    Filed: November 21, 2016
    Publication date: November 29, 2018
    Inventors: Stefan Wendland, Michael Harms
  • Publication number: 20180339114
    Abstract: The present disclosure relates to an auto-injector for delivering a liquid medicament, the auto-injector comprises an injector body, a syringe received in the injector body, a needle disposed in a first end of the syringe to extend toward an opening of the injector body, an injector cap to enclose the opening and cover the needle and a releasable attachment mechanism configured to secure the cap in place covering the needle. The releasable attachment mechanism comprises first and second engaging parts, wherein the first and second engaging parts cooperate in an attached position to secure the cap in position covering the needle, and wherein the attachment mechanism is configured to move into a release position in which the first and second engaging parts are in reduced cooperation when above a threshold temperature to facilitate detachment of the injector cap to expose the needle.
    Type: Application
    Filed: November 21, 2016
    Publication date: November 29, 2018
    Inventors: Stefan Wendland, Michael Harms
  • Publication number: 20180339112
    Abstract: The present disclosure relates to a cap for an injection device. The injection device comprises a body for holding a syringe having a needle extending from an end thereof. The cap is removably attachable to the body. The cap comprises an actuator and a needle shield to cover said needle. The cap further comprises a coupling between the actuator and the needle shield. The coupling is configured such that when the cap is attached to the body of an injection device axial movement of the actuator away from the body causes rotation of the needle shield relative to the body.
    Type: Application
    Filed: November 21, 2016
    Publication date: November 29, 2018
    Inventors: Stefan WENDLAND, Michael HARMS
  • Publication number: 20180333537
    Abstract: An auto-injector for delivering a liquid medicament comprising: a housing arranged to contain a syringe with a piston for sealing the syringe and displacing the medicament, the housing having a distal end and a proximal end intended to be applied against an injection site; a plunger unit arranged between the piston and the distal end of the housing, the plunger unit comprising a threaded internal surface for receiving and engaging a threaded rod element; and a tensioned elastic element fixed to the threaded rod element, the elastic element and the threaded rod element being fixed against rotation in an initial state, wherein when the elastic element is rotationally released, the threaded rod element rotates in a first direction, causing the plunger unit to translate towards the proximal end of the housing and thereby pushing the piston towards the proximal end of the housing to displace the medicament.
    Type: Application
    Filed: November 21, 2016
    Publication date: November 22, 2018
    Inventors: Stefan Wendland, Michael Harms
  • Publication number: 20180333540
    Abstract: An injection device comprising: a housing arranged to contain a liquid medicament or a medicament cartridge; an electrical coil arranged around an inner surface or an outer surface of the housing; an electricity storage apparatus electrically connected to the electrical coil; and a magnet arranged to be movable axially within a defined space with respect to the electrical coil, such that electrical voltage is induced in the electrical coil and a current is generated to charge the electricity storage apparatus.
    Type: Application
    Filed: November 21, 2016
    Publication date: November 22, 2018
    Inventors: Stefan Wendland, Michael Harms
  • Publication number: 20180326159
    Abstract: An auto-injector for delivering a liquid medicament includes a housing arranged to contain a syringe with a piston for sealing the syringe and displacing the medicament, the housing having a proximal end and a distal end and a telescopic plunger unit arranged between the piston and the proximal end of the housing, the telescopic plunger unit comprising a telescopic frame and a spring element surrounding a plunger element. The plunger element is fixed to a base of the telescopic plunger unit and the spring element is held in an initial compressed state by a compressive force exerted by the base of the telescopic plunger unit. When the spring element is released, a tapering profile of the telescopic frame is configured to provide varying friction with extension such that resistance to telescopic extension decreases as spring force provided by the spring element decreases with increasing extension of the telescopic plunger unit.
    Type: Application
    Filed: November 21, 2016
    Publication date: November 15, 2018
    Inventors: Stefan Wendland, Michael Harms
  • Publication number: 20180318521
    Abstract: The present disclosure relates to an injection device. The injection device comprises a body for holding a syringe that has a needle at one end and a cap that is removably attached to the body. The cap has a needle shield to cover said needle. The injection device further comprises an actuator member and a translating member. The actuator member is pivotally coupled to one of the cap or body. The translating member is connected to the actuator member and is configured such that pivotal movement of the actuator member relative to said one of the cap or body causes movement of the translating member relative to the body to urge the needle shield away from the body.
    Type: Application
    Filed: November 21, 2016
    Publication date: November 8, 2018
    Inventors: Stefan Wendland, Michael Harms
  • Publication number: 20180311439
    Abstract: An injector device comprises a housing having a distal end and a proximal end; a medicament reservoir; a stopper for expelling a medicament out of the medicament reservoir; a cavity having an expandable volume which is arranged to move the reservoir or the stopper in a distal direction when the cavity is at least partially inflated with a fluid; and a fluid reservoir which is configured to dispense the fluid in to the cavity; wherein the cavity comprises a flexible tube, and the fluid reservoir is configured to dispense the fluid into the flexible tube.
    Type: Application
    Filed: November 21, 2016
    Publication date: November 1, 2018
    Inventors: Stefan Wendland, Michael Harms, Zdenek Cerman
  • Publication number: 20180207367
    Abstract: A cap removal device for removing and retaining a plurality of caps from a drug delivery device includes a body having a plurality of recesses. Each of the plurality of recesses comprises a shape corresponding to a shape of one of the plurality of caps and each recess is provided with an engagement member adapted to engage a cap. Furthermore, a cap adapted to be mounted to a distal end of a drug delivery device includes a distal portion comprising a shape corresponding to a shape of a recess of the cap removal device.
    Type: Application
    Filed: July 13, 2016
    Publication date: July 26, 2018
    Inventors: Stefan Wendland, Michael Harms