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).

  • Patent number: 11116912
    Abstract: Needle shield mechanism for an auto-injector comprising, a tubular housing (10), a needle shield (12) movably arranged in the housing (10), between a retracted state and an extended position, a releasable spring-biased container carrier assembly movably arranged relative to the housing (10) from an initial position to a penetrating position, wherein the container carrier assembly prevents the needle shield (12) from moving to the extended position when the container carrier assembly is in the initial position, and wherein the container carrier assembly allows the needle shield (12) to move to the extended position when the container carrier assembly is in the penetrating position.
    Type: Grant
    Filed: November 3, 2016
    Date of Patent: September 14, 2021
    Assignee: SHL MEDICAL AG
    Inventor: Slobodan Stefanov
  • Publication number: 20210268200
    Abstract: A needle shield remover for assembly with a cap of a medicament delivery device is presented where the needle shield remover has a main body, at least a flexible first grabber, and at least a flexible second grabber. The first grabber and second grabber extend from the main body and are inclined in relation to the longitudinal axis of the needle shield remover such that they cross each other to form a receiving space configured to receive a delivery member shield.
    Type: Application
    Filed: September 12, 2019
    Publication date: September 2, 2021
    Inventor: Slobodan Stefanov
  • Publication number: 20210268193
    Abstract: A pneumatic power pack for a medicament delivery device is presented having a pressurized gas container storing pressurized gas and an activation assembly for releasing the pressurized gas from the gas source. The activation assembly including a rupturer having a sharp end, an activator, and a rotator coupled with the activator and the gas container. The activator is configured to move from a first position toward a second position to causes a rotation of the rotator which then drives the gas source towards the sharp end of the rupturer to release the pressurized gas.
    Type: Application
    Filed: September 12, 2019
    Publication date: September 2, 2021
    Inventor: Slobodan Stefanov
  • Publication number: 20210220555
    Abstract: A needle insertor for a medicament delivery device is presented having, a driver having a first part movably arranged within the case and a second part connected to the base, a needle assembly movably held by the first part of the driver in the case, a rotator arranged in the case and configured to engage the first part of the driver for moving the driver, an energy accumulation member configured to interact with the rotator for applying a rotational force on the rotator, a movable stop arranged on the base and configured to interact with the rotator for preventing the rotator from rotating. The first part has a first position where the needle assembly is held inside the case, a second position where the needle portion is positioned outside the case after being moved to pass through the injection site end and pierce an injection site, and a third position where the needle portion is positioned inside the case.
    Type: Application
    Filed: September 12, 2019
    Publication date: July 22, 2021
    Inventors: Slobodan Stefanov, Johnathan Weiss
  • Publication number: 20210220565
    Abstract: A needle shield remover for assembly with a cap of a medicament delivery device is presented, having a remover body with a proximal end and a distal end, and at least one first shield gripping member, and at least one second shield gripping member, where the first shield gripping member and the second shield gripping member configured to engage the needle shield. The first shield gripping member and the second shield gripping member are arranged offset in relation to each other both in the longitudinal direction and along the circumference surface of the remover body.
    Type: Application
    Filed: September 12, 2019
    Publication date: July 22, 2021
    Inventors: Jason Frost, Slobodan Stefanov
  • Publication number: 20210196902
    Abstract: Needle shield mechanism for an auto-injector comprising, a tubular housing (10), a needle shield (12) movably arranged in the housing (10), between a retracted state and an extended position, a releasable spring-biased container carrier assembly movably arranged relative to the housing (10) from an initial position to a penetrating position, wherein the container carrier assembly prevents the needle shield (12) from moving to the extended position when the container carrier assembly is in the initial position, and wherein the container carrier assembly allows the needle shield (12) to move to the extended position when the container carrier assembly is in the penetrating position.
    Type: Application
    Filed: November 3, 2016
    Publication date: July 1, 2021
    Inventor: Slobodan Stefanov
  • Publication number: 20210187205
    Abstract: A drive mechanism for a delivery device is presented containing, a rotator having an outer surface and an inner surface, the rotator configured to rotate from a first position to a second position. A needle cover having an inner surface that engages the outer surface of the rotator. A rotatable plunger rod having 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 a plunger rod spring is released from a pre-tensioned state to exert a force on the rotatable plunger rod.
    Type: Application
    Filed: February 2, 2017
    Publication date: June 24, 2021
    Inventors: Jason Frost, Slobodan Stefanov
  • Publication number: 20200147324
    Abstract: The present invention relates to a medicament delivery device comprising a housing, a biased medicament delivery member guard arranged movable in relation to the housing from a proximally extended position to a retracted position, a power pack comprising a plunger rod and a force element arranged to act on said plunger rod, which power pack is actuated by a release clip movable in relation to the housing and arranged to said plunger rod for releasably holding said plunger rod with the force element in a tensioned state; a rotator rotatably arranged inside said housing, which rotator is arranged with a guide element and a medicament delivery member guard lock element on its outer surface, wherein said medicament delivery member guard is arranged with release clip activation elements operably arranged to act on said release clip for releasing said plunger rod, and wherein said medicament delivery member guard is further arranged with a rotator activator element arranged to cooperate with said guide element for
    Type: Application
    Filed: January 16, 2020
    Publication date: May 14, 2020
    Inventor: Slobodan Stefanov
  • Patent number: 10632248
    Abstract: Examples include a medicament delivery device including a housing, a medicament delivery member assembly configured to be moved from an initial position to a penetration position and from the penetration position back to the initial position, a penetration and withdrawal mechanism, an activation mechanism, and a stop mechanism, where the penetration and withdrawal mechanism includes a driver operably connected to the medicament delivery member assembly and to the activation and stop mechanism, a drive element operably connected to the driver, a biased force element connected to the drive element, and a switching element arranged between the driver and the drive element, where operation of the stop mechanism allows the biased force element to interact with the drive element, causing movement of the switching element such that the driver is moved in an opposite direction and moves the medicament delivery member assembly back to the initial position.
    Type: Grant
    Filed: August 16, 2016
    Date of Patent: April 28, 2020
    Assignee: SHL Medical AG
    Inventors: Slobodan Stefanov, Daniel Scott, Johnathan Weiss
  • Patent number: 10632259
    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: Grant
    Filed: August 9, 2016
    Date of Patent: April 28, 2020
    Assignee: SHL MEDICAL AG
    Inventors: Daniel Scott, Slobodan Stefanov, Chun Chu
  • Publication number: 20200023132
    Abstract: A drug delivery device configured to provide a dose of first medicament followed by a dose of second medicament is disclosed. The device includes a main exterior body and an interior body. The device further includes a dual-chamber reservoir with (i) a first chamber holding a first medicament and (ii) a second chamber holding a second medicament. The device also includes a needle and a plunger. After activation of the device, the plunger is configured to (i) move the dual-chamber reservoir a given distance in a distal direction with respect to the interior body so that a distal end of the needle extends out of the interior body and (ii) after moving the dual-chamber reservoir the given distance, move in the distal direction with respect to the dual-chamber reservoir so as to eject from the needle the first medicament followed by the second medicament.
    Type: Application
    Filed: October 2, 2017
    Publication date: January 23, 2020
    Applicant: SHL Medical AG
    Inventor: Slobodan STEFANOV
  • Publication number: 20200023141
    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 all 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
    Type: Application
    Filed: September 27, 2019
    Publication date: January 23, 2020
    Inventors: Lucio Giambattista, Slobodan Stefanov
  • Patent number: 10525213
    Abstract: The present invention relates to a medicament delivery device comprising a housing (10, 20, 24, 30), a biased medicament delivery member guard (64) arranged movable in relation to the housing from a proximally extended position to a retracted position, a power pack (87) comprising a plunger rod (88) and a force element (118) arranged to act on said plunger rod (88), which power pack (87) is actuated by a release clip (96) movable in relation to the housing and arranged to said plunger rod (88) for releasibly holding said plunger rod (88) with the force element (118) in a tensioned state; a rotator (82) rotatably arranged inside said housing, which rotator (82) is arranged with a guide element (80) and a medicament delivery member guard lock element (84, 86) on its outer surface, wherein said medicament delivery member guard (64) is arranged with release clip activation elements (112) operably arranged to act on said release clip (96) for releasing said plunger rod, and wherein said medicament delivery member
    Type: Grant
    Filed: May 27, 2016
    Date of Patent: January 7, 2020
    Assignee: SHL MEDICAL AG
    Inventor: Slobodan Stefanov
  • Patent number: 10493215
    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: Grant
    Filed: October 22, 2015
    Date of Patent: December 3, 2019
    Assignee: SHL Medical AG
    Inventors: Lucio Giambattista, Slobodan Stefanov
  • Patent number: 10456521
    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: Grant
    Filed: October 2, 2015
    Date of Patent: October 29, 2019
    Assignee: SHL MEDICAL AG
    Inventor: Slobodan Stefanov
  • Patent number: 10426892
    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: Grant
    Filed: March 8, 2016
    Date of Patent: October 1, 2019
    Assignee: SHL Medical AG
    Inventor: Slobodan Stefanov
  • Patent number: 10328205
    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: Grant
    Filed: July 7, 2016
    Date of Patent: June 25, 2019
    Assignee: SHL Medical AG
    Inventor: Slobodan Stefanov
  • Patent number: 10300218
    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: Grant
    Filed: March 22, 2017
    Date of Patent: May 28, 2019
    Assignee: SHL MEDICAL AG
    Inventors: Slobodan Stefanov, Johnathan Weiss
  • Patent number: 10265476
    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: Grant
    Filed: March 11, 2016
    Date of Patent: April 23, 2019
    Assignee: SHL MEDICAL AG
    Inventors: John Laiosa, Dane Kris, Slobodan Stefanov
  • Patent number: 10245387
    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: Grant
    Filed: July 12, 2016
    Date of Patent: April 2, 2019
    Assignee: SHL MEDICAL AG
    Inventors: Slobodan Stefanov, Thad Miley