Patents by Inventor Slobodan Stefanov

Slobodan Stefanov 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: 20180272075
    Abstract: A safety assembly for a medicament delivery device is presented that prevents premature activation or firing of the device during shipping or handling. The disclosed safety assembly uses a tubular cover partially contained inside of the housing of the delivery device that is axially slidable relative to the housing from a first position to a second position and then to a third position, the tubular cover having a housing nib and a cap nib, where each of the cap nib and housing nib protrudes radially outward from an outer surface of the tubular cover and are located at a proximal end of the tubular cover. In the first position the housing nib and cap nib are located outside of the housing with the housing nib abutting the terminal proximal face of the housing to prevent axial movement of tubular cover relative the housing.
    Type: Application
    Filed: March 22, 2017
    Publication date: September 27, 2018
    Inventors: Slobodan Stefanov, Johnathan Weiss
  • Publication number: 20180243504
    Abstract: A medicament delivery device includes a holding unit (5), a driving unit (7) releasably held by the holding unit, an activation unit (6) used to release the driving unit from the holding unit, and an injection unit (8) to be moved by the driving unit. The injection unit includes a hub (85) held by the driving unit, a cannula (86) fixed to the hub and a container (83) slidably connected to the hub. After the driving unit is released, the proximal end of the cannula protrudes out of the activation unit before the distal end of the cannula fluidly communicates with the container. The medicament delivery device is combined with an electronic device in an assembly. When a casing cap of the assembly is removed, the electronic device or an app in the electronic device or a function of the electronic device is automatically activated to wirelessly communicate with another electronic device.
    Type: Application
    Filed: August 9, 2016
    Publication date: August 30, 2018
    Inventors: Daniel Scott, Slobodan Stefanov, Chun Chu
  • Publication number: 20180236163
    Abstract: The present invention relates to a medicament delivery device comprising a housing (10, 12); a medicament delivery member assembly (62,66) configured to be moved in relation to the housing (10, 12) from an initial position to a penetration position and from the penetration position back to the initial position; a penetration and withdrawal mechanism (48, 74, 78, 86) configured to control the movements of said medicament delivery member assembly (62, 66); an activation mechanism (14) configured to interact with said penetration and withdrawal mechanism (48, 74, 78, 86) for initiating the movement of the medicament delivery member assembly (62, 66) from the initial position to the penetration position; a stop mechanism (108, 110) configured to interact with said penetration and withdrawal mechanism (48, 74, 78, 86) for initiating the movement of the medicament delivery member assembly (62, 66) from the penetration position back to the initial position.
    Type: Application
    Filed: August 16, 2016
    Publication date: August 23, 2018
    Inventors: Slobodan STEFANOV, Daniel SCOTT, Johnathan WEISS
  • Publication number: 20180036482
    Abstract: A motorized drug delivery device configured to administer at least one pre-set dose of a medicament contained within a medicament container. The delivery device comprising a user activation system (13), a motor (22), a gear train (15) operatively coupled to the user activation system and the motor, and a piston plunger system (200) operatively coupled to the gear train. The piston plunger system comprises a piston plunger (50) and at least one plunger extension (42; 44) for extending a length of the piston plunger. The piston plunger system is configured to act on a stopper contained within the medicament container to deliver at least one pre-set dose of medicament. The user activation system comprises a mechanical automatic reset activation system for automatically resetting the drug delivery device after administration of the pre-set dose.
    Type: Application
    Filed: March 8, 2016
    Publication date: February 8, 2018
    Inventor: Slobodan Stefanov
  • Publication number: 20180015228
    Abstract: A multi-dose medicament delivery device is presented having a housing, a medicament container assembly, a dose drum, a plunger rod, and an activation assembly. The dose drum is supported in the housing via a threaded connection, wherein the dose drum is axially movable with respect to the housing in a backward direction from an initial position to at least one dosing position when rotated in a first direction in order to set a dose to be delivered, and axially movable with respect to the housing in a forward direction from said dosing position to the initial position when rotated in a second, opposite direction in order to deliver the dose set. The plunger rod is operationally associated with the stopper and supported in the housing via a threaded connection, wherein the threaded connection is configured to axially guide the plunger rod toward the device front end when the plunger rod is rotated in the second direction.
    Type: Application
    Filed: July 12, 2016
    Publication date: January 18, 2018
    Inventors: Slobodan Stefanov, Thad Miley
  • Publication number: 20180008775
    Abstract: A drug delivery device configured to provide a dose of medicament is disclosed. The drug delivery device includes a main housing, a syringe arranged in the main housing, and a pneumatic power pack arranged in the main housing. The pneumatic power pack includes a pressurized gas source storing pressurized gas, a valve for the pressurized gas source, a sleeve having an inner wall, and a plunger. The sleeve is configured to receive pressurized gas released from the pressurized gas source. The plunger is in sliding gas-tight engagement with the inner wall of the sleeve. Upon activation of the valve, the valve releases the pressurized gas, and the released pressurized gas flows into the sleeve and propels the plunger in a distal direction with respect to the sleeve and the syringe, so as to eject medicament from the syringe.
    Type: Application
    Filed: July 7, 2016
    Publication date: January 11, 2018
    Inventor: Slobodan Stefanov
  • Publication number: 20170319791
    Abstract: The present disclosure relates to a medicament injection device (1) comprising a housing (3) arranged to receive a medicament container (11a), a needle cover (9) movable relative to the housing (3), from a retracted position, in which it engages the housing (3) and enables medicament delivery, to an extended position, a plunger rod (7), and a plunger driver (5) movable relative to the housing (3) from an initial position to a final position, and arranged to actuate the plunger rod (7), wherein the plunger rod (7) has a first guide arrangement and the housing (3) has a second guide arrangement, the first guide arrangement (7d) and the second guide arrangement being arranged to cooperate to guide movement of the plunger rod (7) relative to the housing (3), wherein the first guide arrangement and the second guide arrangement in a first stage provide a linear motion path for the plunger rod (7), enabling the plunger rod (7) to initially move in the axial direction and in a second stage provide a rotation motion p
    Type: Application
    Filed: October 22, 2015
    Publication date: November 9, 2017
    Inventors: Lucio Giambattista, Slobodan Stefanov
  • Publication number: 20170296742
    Abstract: A control mechanism for a medicament delivery device is provided having a medicament container connection mechanism, for connecting a medicament container with a medicament delivery member; a penetration and withdrawal mechanism, for actuating a penetration and a withdrawal sequence; a medicament delivery drive unit, for expelling a medicament; an activation mechanism, for initiating a penetration and medicament delivery sequence; a stop mechanism, for initiating a withdrawal sequence; wherein the control mechanism further comprises a control member, linearly movable between a first position and a second position, which control member is connectable to the medicament container connection mechanism, to the penetration and withdrawal mechanism, to the medicament delivery drive unit, to the activation mechanism, and to the stop mechanism.
    Type: Application
    Filed: October 2, 2015
    Publication date: October 19, 2017
    Inventor: Slobodan Stefanov
  • Publication number: 20170259002
    Abstract: A two body syringe carrier assembly for use in an injection device is presented where a force dampener is operatively connected to the two bodies to dissipate spring force at the completion of the penetration and/or injection steps. The injection device has a generally elongated tubular housing, a syringe containing medicament and having a needle, a needle shield slidably arranged to the housing and protruding a distance outside the front end of the housing, a plunger arranged to act on the syringe and a pre-tensioned drive member arranged the drive the plunger.
    Type: Application
    Filed: March 11, 2016
    Publication date: September 14, 2017
    Inventors: John Laiosa, Dane Kris, Slobodan Stefanov
  • Publication number: 20170246400
    Abstract: A drive mechanism for a delivery device comprising, a rotator comprising an outer surface and an inner surface, the rotator configured to rotate from a first position to a second position. A needle cover comprising an inner surface that engages the outer surface of the rotation. A rotatable plunger rod comprising an outer surface configured to engage the inner surface of the rotator. When the rotator rotates from the first position to the second position, the rotatable plunger rod is rotated by the rotator and the plunger rod spring is released from a pre-tensioned state to exert a force on the rotatable plunger rod.
    Type: Application
    Filed: February 29, 2016
    Publication date: August 31, 2017
    Inventors: Slobodan Stefanov, Jason Frost
  • Patent number: 9468723
    Abstract: A medicament delivery device includes a housing; a carrier for a medicament container, the carrier being slidable in the housing; a trigger unit; a cover unit coaxial and slidable in the housing; a release mechanism configured to be actuated partly by the trigger unit and partly by movement of the cover unit; a preloaded drive unit releasably connected to the carrier and controlled by the release mechanism for advancing the carrier to a predetermined proximal position in relation to the housing, the preloaded drive unit having a plunger rod and a helical drive spring disposed within the plunger rod, with at least one end of the helical drive spring configured to interact with an interior of the plunger rod; and a braking mechanism between the preloaded drive unit and the release mechanism configured to control a speed of the preloaded drive unit when advancing the slidable stopper within the container.
    Type: Grant
    Filed: January 12, 2016
    Date of Patent: October 18, 2016
    Assignee: SHL Group AB
    Inventors: Stephan Olson, Slobodan Stefanov
  • Publication number: 20160193416
    Abstract: A medicament delivery device includes a housing; a carrier for a medicament container, the carrier being slidable in the housing; a trigger unit; a cover unit coaxial and slidable in the housing; a release mechanism configured to be actuated partly by the trigger unit and partly by movement of the cover unit; a preloaded drive unit releasably connected to the carrier and controlled by the release mechanism for advancing the carrier to a predetermined proximal position in relation to the housing, the preloaded drive unit having a plunger rod and a helical drive spring disposed within the plunger rod, with at least one end of the helical drive spring configured to interact with an interior of the plunger rod; and a braking mechanism between the preloaded drive unit and the release mechanism configured to control a speed of the preloaded drive unit when advancing the slidable stopper within the container.
    Type: Application
    Filed: January 12, 2016
    Publication date: July 7, 2016
    Applicant: SHL Group AB
    Inventors: Stephan Olson, Slobodan Stefanov