Piston Moved By Screw Or Rack Patents (Class 604/224)
  • Patent number: 10765242
    Abstract: A dispenser includes a body (10) the body including an asymmetric shape corresponding to a flattened product pouch. The body includes a row of teeth (42) extending longitudinally along the bottom of the body. A grip (28) is slidingly engaged with a bottom of the body and is coupled to a squeeze pusher (32) disposed within the interior space of the body. An actuator arm (30) is movably attached to the grip. A drive mechanism is movably attached to the actuator and is engageable with the row of teeth. For dispensing, movement of the actuator causes a corresponding movement of the drive mechanism which causes the grip and squeeze pusher to move relative to the body in a direction from the proximal end to the dispensing end, thus applying pressure to the pouch.
    Type: Grant
    Filed: October 18, 2017
    Date of Patent: September 8, 2020
    Assignee: Cryovac, LLC
    Inventors: Hubert Cook, David Ackerman, Steve Schwarz, Edward Jones
  • Patent number: 10744270
    Abstract: A dose setting mechanism comprising a first element and a second element; the first element being moveable with respect to the second element; the first element and the second element being coupled by a ratchet mechanism allowing motion of the first element with respect to the second element from a first position to a second position only in a first direction while preventing motion in a second direction that is opposite to the first direction; once passing the second position, the first element being moveable with respect to the second element in the first direction and in the second direction.
    Type: Grant
    Filed: November 24, 2015
    Date of Patent: August 18, 2020
    Assignee: Sanofi
    Inventors: Richard James Vincent Avery, Matthew Meredith Jones, William Geoffrey Arthur Marsh, Anthony Paul Morris, David Aubrey Plumptre, Samuel Keir Steel, Robert Frederick Veasey
  • Patent number: 10722656
    Abstract: The invention relates to a piston rod drive arrangement for an injection device used for self-administration of a plurality of individually set doses. The drive arrangement is made from a first element (10) mating the non-circular cross-section (3) of a piston rod (1) and a second element (20) having an inner thread (21) mating the outer thread of the piston rod. Whenever the first element (10) and the second element (20) are rotated in relation to each other the piston rod (1) is moved in an axial direction. In order to minimise the play in the threaded connection a resilient element (23) is proved to apply a force to the piston rod (1) in a longitudinal direction.
    Type: Grant
    Filed: January 25, 2016
    Date of Patent: July 28, 2020
    Assignee: Novo Nordisk A/S
    Inventor: Simon Munch Pedersen
  • Patent number: 10688289
    Abstract: This application is generally related to systems and methods for accessing the paranasal sinuses and other passages of the nose, ear, and throat. The systems and methods generally employ devices capable of maintaining a fixed handle orientation with respect to the patient while generating the appropriate applicator deflection angle required to rotationally align or orient the applicator tip to the intended target tissue/anatomy for treatment. Methods are also described for deploying drug delivery devices within these body structures using the systems to treat medical conditions associated therewith.
    Type: Grant
    Filed: June 10, 2019
    Date of Patent: June 23, 2020
    Assignee: Intersect ENT, Inc.
    Inventors: Sean Finson, John Joseph Stankus
  • Patent number: 10639428
    Abstract: The present disclosure is generally directed to a drug delivery device for selecting and dispensing a number of user variable doses of a medicament and to an insert for such a device. The insert comprises a cup-shaped body with a distal end and a proximal end. The body has a sidewall and a tube which extends centrally through the cup-shaped body in a longitudinal direction, thereby defining an annular space between the sidewall and the tube. The annular space is open in the proximal direction for receiving a compression spring. The tube comprises a thread provided at an inner surface of the tube. Further, the tube, the sidewall and/or a second part comprise a clutch feature for rotationally constraining a component part to the insert.
    Type: Grant
    Filed: October 9, 2015
    Date of Patent: May 5, 2020
    Assignee: Sanofi
    Inventor: Anthony Paul Morris
  • Patent number: 10525203
    Abstract: An autoinjector comprising a body (1, 2), and a reservoir (S) containing fluid and including a piston (P) and a needle (A), such as a pre-filled syringe, said autoinjector further comprising a piston rod (5) that is suitable for co-operating with the piston (P) of said reservoir (S), said piston rod (5) being movable between a rest position and an injection position in which said piston rod (5) has moved the piston (P) of the reservoir (S) so as to inject the fluid through the needle (A), an actuator spring (6) being provided so as to urge said piston rod (5) towards its injection position, the autoinjector further comprising a force-adjustment system (7, 8) that exerts a force (F2) on said piston rod (5), said force (F2) adding to the force exerted by said actuator spring (6) on said piston rod (5) at the beginning of injection, so as to amplify the force exerted on said piston (P) by said piston rod (5) at the beginning of injection.
    Type: Grant
    Filed: July 4, 2014
    Date of Patent: January 7, 2020
    Assignee: APTAR FRANCE SAS
    Inventor: David Fabien
  • Patent number: 10512732
    Abstract: An assembly for a drug delivery device and an associated drug delivery device are provided. The device has a drug delivery device housing and a medicament contained in the drug delivery device housing. A clutch is established between the dose knob and the dial link to prevent inadvertent proximal axial movement of the lead screw away from the cartridge piston, which can lead to dosing inaccuracies.
    Type: Grant
    Filed: November 17, 2014
    Date of Patent: December 24, 2019
    Assignee: Sanofi-Aventis Deutschland GMBH
    Inventors: Stefan Blancke, Axel Teucher
  • Patent number: 10391253
    Abstract: Precision low-dose, low-waste syringe configurations have a reduced diameter lumen for dispensing 0.01 ml increments of contents. Plunger and lumen configurations and a needle interface eliminate dead space. Ergonomic attachments improve the control and precision of delivery of syringes. An attachment main body includes a gripping surface to permit a user to engage the attachment and move the attachment main body, and thus the syringe plunger relative to the syringe barrel using sliding movement. Optical enhancement features are provided on the attachment to improve the readability of gradations and plunger position. The attachment may be provided with an assist feature, which may be a traction wheel mounted on the attachment body. An alternative configuration suitable for syringe contents of higher viscosity may include a pair of toothed pinion gears on a wheel and which cooperate with respective toothed racks formed on or fastened to the syringe body.
    Type: Grant
    Filed: August 31, 2018
    Date of Patent: August 27, 2019
    Assignee: InnoMed Technologies, Inc.
    Inventors: John H. Joseph, Minh Bui, Rod Peterson
  • Patent number: 10391255
    Abstract: An apparatus and methods for tracking administering of medication by syringes is provided. The apparatus may include a plunger head for a syringe. The plunger head may include a transducer that sends and receives ultrasonic signals. The plunger may also include an antenna and a microcontroller that interfaces with the transducer and the antenna. The plunger may also include a power source that powers the microcontroller and the transducer. The transducer, the antenna, the microcontroller, and the power source may be at least partially encapsulated in an elastomer housing that fits within a barrel of the syringe. The microcontroller may be programmed with instructions to calculate data representative of the quantity of medication dispensed from the barrel and transmit the data to a remote device via the antenna.
    Type: Grant
    Filed: November 30, 2017
    Date of Patent: August 27, 2019
    Assignee: Verily Life Sciences LLC
    Inventors: Benjamin David Krasnow, Peter Howard Smith, Travis Deyle, Russell Mirov
  • Patent number: 10376647
    Abstract: An injection assembly includes a housing with a barrel positioned within the housing. The barrel includes an axis extending from a proximal end to a distal end thereof and a chamber for storing medicine. An elongate anti-rotation shaft is rotationally fixed to the housing and has a non-circular cross-section. The injection assembly includes an inner screw having an inner screw opening to complementarily receive the anti-rotation shaft to prevent rotation of the inner screw with respect to the anti-rotation shaft but allow respective linear translation along the axis. An outer screw is positioned within, and rotatable with respect to, the housing and has an outer screw opening to threadably receive the inner screw, wherein rotation of the outer screw translates the inner screw along the axis and along the anti-rotation shaft. A plunger is coupled to the distal end of the inner screw and is moveable with respect to the chamber to push the medicine out of the chamber when the outer screw is rotated.
    Type: Grant
    Filed: March 18, 2016
    Date of Patent: August 13, 2019
    Assignee: West Pharma. Services IL, Ltd.
    Inventors: Jason W. Farris, Jorge Santos, Tommy Gene Davis
  • Patent number: 10300207
    Abstract: A dispensing mechanism for delivering a dosage of medicament including a housing having a proximal-distal axis; a plunger rod having a screw thread and configured to advance along the proximal-distal axis relative to the housing; a user-operable push button moveable along the proximal-distal axis relative to the housing; a twist driver threadably engaged with the push button such that movement of the push button towards the distal end of the housing causes rotation of the twist driver about the proximal-distal axis; and a driver engaged with the twist driver such that rotation of the twist driver causes rotation of the driver, the driver also engaged with a portion of the plunger rod such that rotation of the driver causes rotation of the plunger rod, advancing the plunger rod along the proximal-distal axis relative to the housing.
    Type: Grant
    Filed: March 12, 2014
    Date of Patent: May 28, 2019
    Assignee: ANTARES PHARMA, INC.
    Inventors: Benjamin Newton, Patrick Madsen, Matthew Rust, Janice Cox
  • Patent number: 10300205
    Abstract: An autoinjector having a body (1; 2), a reservoir (S), a piston (P), a needle (A), and a piston rod (5) co-operating with the piston. The piston rod is movable between a first rest position, a second pricking position, and a third injection position. An actuator spring (6) is provided to urge the piston rod towards its pricking position and then towards its injection position. A force-adjustment system (7, 8) exerts a force (F1, F2) on the piston rod (5). The force (F1) opposes the force exerted by the actuator spring at the end of pricking to decrease the force exerted on the reservoir by the piston rod at the end of pricking, and the force (F2) adding to the force exerted by the actuator spring at the beginning of injection, to amplify the force exerted on the piston by the piston rod at the beginning of injection.
    Type: Grant
    Filed: July 4, 2014
    Date of Patent: May 28, 2019
    Assignee: APTAR FRANCE SAS
    Inventor: David Fabien
  • Patent number: 10188801
    Abstract: A dose setting mechanism having a locking mechanism for preventing selection of a dose in a drug delivery device is disclosed. The dose setting mechanism includes a locking mechanism that prevents movement of the dose setting mechanism. When a correct cartridge is inserted into the drug delivery device, the locking mechanism unlocks so as to allow movement of the dose setting mechanism. In one arrangement, the locking mechanism prevents rotation of the dose setting mechanism.
    Type: Grant
    Filed: August 11, 2011
    Date of Patent: January 29, 2019
    Assignee: Sanofi-Aventis Deutschland GmbH
    Inventors: Joseph Butler, Richard James Vincent Avery
  • Patent number: 9962494
    Abstract: A method and an assembly for providing a drug delivery device is presented. The assembly includes a housing and an end of dose feedback connection provides the user with an audible and/or tactile signal to indicate that the drug delivery is completed. A first section of the end of dose feedback connection is located on a distal portion of an inner sleeve and a second section of the end of dose feedback connection is located on the mid-body.
    Type: Grant
    Filed: November 17, 2014
    Date of Patent: May 8, 2018
    Assignee: SANOFI-AVENTIS DEUTSCHLAND GMBH
    Inventors: Stefan Blancke, Axel Teucher, Michael Jugl, Christiane Schneider
  • Patent number: 9897980
    Abstract: A drug delivery device comprising; a housing; a cylindrical member configured to be rotatably supported inside the housing, wherein the outer surface of the cylindrical member is provided with a track comprising a sequence of encoded images; and a sensor directed at the track of the cylindrical member and configured to detect features of the encoded images.
    Type: Grant
    Filed: July 12, 2012
    Date of Patent: February 20, 2018
    Assignee: Sanofi-Aventis Deutschland GmbH
    Inventors: Paul Richard Draper, Joseph Butler, Barry Yates, Stephens Francis Gilmore
  • Patent number: 9744310
    Abstract: The pharmaceutical injection device includes a pharmaceutical syringe mounting portion (3) provided within a main body case (2) and to which a pharmaceutical syringe (4) is removably mounted, a piston (5) provided movably with respect to the pharmaceutical syringe (4) mounted to the pharmaceutical syringe mounting portion (3), a drive mechanism (6) for driving the piston (5), a controller (7) that is electrically connected to the drive mechanism (6), a display section (35) that is connected to the controller (7), and an encoder (26) that is connected to the controller (7) and detects the amount of the pharmaceutical remaining inside the pharmaceutical syringe (4). The controller (7) displays a warning on the display section (35) recommending removal of the pharmaceutical syringe (4) from the pharmaceutical syringe mounting portion (3) when the presence of a pharmaceutical is detected by the encoder (26).
    Type: Grant
    Filed: September 10, 2012
    Date of Patent: August 29, 2017
    Assignees: PANASONIC HEALTHCARE CO., LTD., JCR PHARMACEUTICALS CO., LTD.
    Inventors: Tsuguhiro Kondoh, Seiji Kikuchi, Takashi Hanada
  • Patent number: 9700679
    Abstract: The drive mechanism for a drug delivery device comprises a piston rod, which is displaced in a distal direction for a delivery of a dose and in a proximal direction for a reset, and a resilient member, which acts on the piston rod during a reset and tends to restrict the movement of the piston rod in the proximal direction. The resilient member may be a biasing member provided for an automatic reset, a compression spring entering the piston rod or a torsion spring provided to generate a rotation. The drug delivery device is provided with such a drive mechanism.
    Type: Grant
    Filed: May 28, 2013
    Date of Patent: July 11, 2017
    Assignee: SANOFI-AVENTIS DEUTSCHLAND GMBH
    Inventors: Stephen David Butler, Mark Philip Horlock
  • Patent number: 9669166
    Abstract: The present invention provides a disposable syringe and a push rod for use in a disposable syringe. The push rod comprises a proximal end, a distal end and an axis extending through the proximal end and the distal end. The distal end of the push rod is provided with a snap-fitting mechanism and a stop flange located at a proximal side of the snap-fitting mechanism. The stop flange comprises a main body portion formed about an axis of the push rod and a plurality of finger-like portions extending from the main body portion in a direction away from the axis of the push rod. According to the present invention, a smaller push force continues to be applied to the push rod upon completion of the injection, thereby achieving an additional stroke needed when the distal end of the push rod snap-fits with the needle seat and meanwhile lessening the patient's pains.
    Type: Grant
    Filed: December 28, 2012
    Date of Patent: June 6, 2017
    Assignee: SOL-MILLENNIUM MEDICAL HK LIMITED
    Inventor: Zuoqian Lin
  • Patent number: 9579466
    Abstract: A drive assembly (70) for a drug delivery device (1) comprises a rotation member (21) being configured to be rotated in a first direction (44) during setting of a dose of a drug and to be rotated in a second direction (47) during delivery of the dose, a drive component (20) being configured to follow rotational movement of the rotation member (21) in the second direction (47) during delivery of the dose and a stop member (26) being configured to prevent rotational movement of the drive component (20) in the first direction (44). The drive component (20) comprises a first drive part (71) and a second drive part (72), coupled to each other such that relative rotational movement of the first and second drive parts (71, 72) is prevented and relative axial movement is permitted.
    Type: Grant
    Filed: August 24, 2015
    Date of Patent: February 28, 2017
    Assignee: Sanofi-Aventis Deutschland GmbH
    Inventors: Christopher James Smith, Stephen David Butler, Mark Philip Horlock
  • Patent number: 9572940
    Abstract: A drive assembly for a medication delivery device is provided which is switchable from an operational state to a resetting state and which comprises: a housing having a proximal end and a distal end, a drive member adapted to be rotated with respect to the housing, and a stop member adapted to prevent rotational movement of the drive member in a first direction with respect to the housing and to permit rotational movement of the drive member in a second direction with respect to the housing, the second direction being opposite to the first direction. In the operational state of the drive assembly the stop member is held in engagement with the drive member, and for switching into the resetting state of the drive assembly the stop member is enabled to disengage from the drive member caused by gravity due to the weight of the stop member.
    Type: Grant
    Filed: June 9, 2011
    Date of Patent: February 21, 2017
    Assignee: SANOFI-AVENTIS DEUTSCHLAND GMBH
    Inventor: Mark Philip Horlock
  • Patent number: 9555195
    Abstract: A drive assembly for a drug delivery device comprises a rotation member being configured to be rotated in a first direction during setting of a dose of a drug and to be rotated in a second direction during delivery of the dose, a drive component being configured to follow rotational movement of the rotation member in the second direction during delivery of the dose and a stop member being configured to prevent rotational movement of the drive component in the first direction. The drive component comprises a first drive part and a second drive part, coupled to each other such that relative rotational movement of the first and second drive parts is prevented and relative axial movement is permitted.
    Type: Grant
    Filed: June 9, 2011
    Date of Patent: January 31, 2017
    Assignee: Sanofi-Aventis Deutschland GmbH
    Inventors: Christopher James Smith, Stephen David Butler, Mark Philip Horlock
  • Patent number: 9526840
    Abstract: A mechanism in the body is used to drive a piston rod and comprises means for guiding the movement of the piston rod relatively to the body while delivering the drug. Further means are provided for releasing the piston rod from the means for guiding the movement, thus enabling a reset of the piston rod to a start position, especially after the receptacle has been emptied and is to be refilled. The device is constructed in such a manner that a reset of the piston rod is facilitated.
    Type: Grant
    Filed: March 31, 2010
    Date of Patent: December 27, 2016
    Assignee: SANOFI-AVENTIS DEUTSCHLAND GMBH
    Inventors: Michael Harms, Volker Korger, Uwe Dasbach, Steffen Raab
  • Patent number: 9302047
    Abstract: A medicament delivery device includes a generally elongated tubular housing having opposite proximal and distal parts; a needle shield sleeve slidably and coaxially arranged inside the housing with a proximal part of the sleeve protruding a distance outside the proximal part of the housing; a syringe carrier mechanism having a syringe carrier slidably and coaxially arranged within the needle shield sleeve, a syringe having a stopper, a medicament, and a needle, the syringe being coaxially arranged within the syringe carrier; and a holding member connected to the syringe carrier; a first activator member and a second activator member; a drive mechanism adapted to accumulate a drive force for moving the syringe carrier mechanism in a first step and a second step. The second activator member is arranged with an information device for producing audible, visual, and/or tactile feedback to a user about a completed injection.
    Type: Grant
    Filed: April 8, 2013
    Date of Patent: April 5, 2016
    Assignee: SHL Group AB
    Inventor: Oscar Alexandersson
  • Patent number: 9186465
    Abstract: The present invention relates to electronically assisted drug delivery devices (100). The drug delivery device may include a Gray code type detector for sensing dosage data, wherein the detector comprises a code track consisting of a sequence of alternating markings and a plurality of detectors that are mutually spaced in a direction extending along the code track. The drug delivery device may also include a dosage selector (260) which is moved in a proximal direction upon dose setting and in a distal direction upon dose injection, where the dosage selector is latched in the end of dose position by a latching element, the latching element actuating an end of dose switch for signalling the end of dose state. The drug delivery device may also incorporate power-management arrangements which effectively minimizes power consumption for the incorporated electronic circuitry.
    Type: Grant
    Filed: November 5, 2009
    Date of Patent: November 17, 2015
    Assignee: Novo Nordisk A/S
    Inventors: Bjarke Dupont Jørgensen, Jan Lindhardt Petersen, Steven Linnebjerg, Henrik Groth Ludvigsen, Michael Ejstrup Hansen, Erik Beyerholm, Ramin Nateghi Elahi
  • Patent number: 9180255
    Abstract: A resettable drive assembly for a drug delivery device (1) is provided. The drive assembly comprises a drive unit (3) for driving a piston rod (5) in a dispense operation of the device (1). The drive unit (3) comprises a first drive member (35), a second drive member (37) and locking means preventing a relative rotational movement of the first (35) and the second drive member (37) during a dispense operation and allowing a relative rotational movement for enabling a resetting of the device (1). Moreover, a drug delivery device (1) comprising a resettable drive assembly is provided.
    Type: Grant
    Filed: September 29, 2010
    Date of Patent: November 10, 2015
    Assignee: Sanofi-Aventis Deutschland GmbH
    Inventors: Garen Kouyoumjian, Robert Veasey, David Plumptre, Christopher Jones, Catherine Anne MacDonald, James May
  • Patent number: 9144649
    Abstract: A dose setting mechanism for a drug delivery device is provided comprising a dose setting member, a drive member, a clutch, a first clicker and second clicker. The first clutch and a second clutch are designed and adapted to each other such that at any time during operation either the first clutch rotationally couples the dose setting member and the drive member and/or the second clutch rotationally couples the drive member and the first clicker component. Further, the invention refers to an injection device with such a dose setting mechanism.
    Type: Grant
    Filed: March 22, 2012
    Date of Patent: September 29, 2015
    Assignee: SANOFI-ADVENTIS DEUTSCHLAND GMBH
    Inventor: David Aubrey Plumptre
  • Patent number: 9132236
    Abstract: The invention relates to an injection device comprising a housing, a container holder arranged within said housing, the container holder being configured for accommodating a medicament container having a needle attached to one end thereof and a stopper sealingly and slidable arranged inside the medicament container at the other end thereof, a drive unit comprising a plunger rod and plunger drive means, the plunger drive means being slidable arranged in relation to the plunger rod, being rotationally locked to the plunger rod and being rotatable in relation to the housing, said drive unit further comprising a first energy accumulating member arranged in the interior of the housing of the injection device and adapted to accumulate and store energy, wherein said plunger drive means is operationally associated with said first energy accumulating member, wherein the plunger drive means is releasable such that due to an output torque from said first energy accumulating member, the plunger drive means are allowed to
    Type: Grant
    Filed: June 7, 2012
    Date of Patent: September 15, 2015
    Assignee: SHL Group AB
    Inventors: Anders Karlsson, Stephan Olson
  • Publication number: 20150088079
    Abstract: The drive mechanism for a drug delivery device comprises a piston rod, which is displaced in a distal direction for a delivery of a dose and in a proximal direction for a reset, and a resilient member, which acts on the piston rod during a reset and tends to restrict the movement of the piston rod in the proximal direction. The resilient member may be a biasing member provided for an automatic reset, a compression spring entering the piston rod or a torsion spring provided to generate a rotation. The drug delivery device is provided with such a drive mechanism.
    Type: Application
    Filed: May 28, 2013
    Publication date: March 26, 2015
    Inventors: Stephen David Butler, Mark Philip Horlock
  • Patent number: 8986259
    Abstract: Various embodiments of piston rod assemblies, drug delivery devices making use of such piston rod assemblies, and methods for assembling such piston rod assemblies and drug delivery devices are provided. In one embodiment, a piston rod assembly for a drug delivery device is provided, wherein the piston rod assembly is configured to engage a piston of a medicament cartridge. The piston rod assembly comprises (i) a piston rod, (ii) at least one adjusting member displaceably engaged with a distal end section of the piston rod, wherein the at least one adjusting member is displaceable along a long axis of the piston rod, and (iii) at least one interlock member configured to mutually lock the at least one adjusting member and the piston rod in an arbitrary relative axial position.
    Type: Grant
    Filed: June 1, 2010
    Date of Patent: March 24, 2015
    Assignee: Sanofi-Aventis Deutschland GmbH
    Inventors: Michael Helmer, Christoph Eissengarthen, Winfried Huthmacher, Carsten Mosebach, Leo Zeimetz
  • Publication number: 20150073357
    Abstract: A device for penetrating tissue is provided that has a driving actuator with a body and motor shaft that is reciprocated. A coupler is attached to the motor shaft, and a key engages the driving actuator and coupler and limits rotational motion of the motor shaft and permits linear motion of the motor shaft. A penetrating member is carried by the coupler, and linear motion of the motor shaft is translated to the penetrating member to linearly reciprocate the penetrating member.
    Type: Application
    Filed: October 24, 2014
    Publication date: March 12, 2015
    Inventors: Roger B. Bagwell, Ryan S. Clement, Andrew J. Meehan, Casey A. Scruggs, Ryan M. Sheehan, Maureen L. Mulvihill
  • Patent number: 8968259
    Abstract: The present disclosure relates to a resettable drive mechanism for use in a drug delivery device. The drug delivery device is having a distal direction and a proximal direction. The drive mechanism comprises a drive rack engaged with a drive gear, a piston rack engaged with a piston gear and coupling means for coupling the drive gear with the piston gear. In a first state of the drive mechanism, the drive gear and the piston gear are coupled and the piston rack moves in distal direction when the drive rack is moved in distal direction. In a second state of the drive mechanism, the drive gear and the piston gear are decoupled and the piston rack is moveable in proximal direction for resetting the drive mechanism.
    Type: Grant
    Filed: September 29, 2010
    Date of Patent: March 3, 2015
    Assignee: Sanofi-Aventis Deutschland GmbH
    Inventors: Robert Veasey, George Cave, Christopher Jones, Garen Kouyoumjian, Catherine Anne Macdonald
  • Patent number: 8968258
    Abstract: A resettable drive mechanism for a medication delivery device comprising a housing and a drive member rotatable in a second direction for delivering a dose. A piston rod driven distally when a drive member rotates in the second direction. A stop member prevents rotation of the drive member in a first direction opposite the second direction, when the stop member engages the drive member. A clutch member is movable between a delivery and reset position. When the clutch member is in the delivery position, the stop member and the drive member engage and the drive member is prevented from rotating in the first direction. When the clutch member is in the reset position, the drive member and the stop member disengage. The drive member is rotatable in the first direction.
    Type: Grant
    Filed: December 9, 2009
    Date of Patent: March 3, 2015
    Assignee: Sanofi-Aventis Deutschland GmbH
    Inventors: Philippe Nzike, Steffen Raab, Ulrich Brüggemann, Uwe Dasbach, Uwe Boeser
  • Patent number: 8961020
    Abstract: A thrust bearing assembly for guiding and driving a piston member having a lead screw for dispensing a medium of a delivery device when the piston member is driven in a first axial direction is provided. The thrust bearing assembly comprises a thrust bearing means for being integrated in the delivery device, a passageway for guiding the lead screw, and a rotary drive means for driving the lead screw and being fitted into or onto the thrust bearing means while being rotatable with regard to the thrust bearing. Further, the thrust bearing means comprises a thrust face which limits axial movement of the rotary drive means when driving the lead screw in the first axial direction. A drive train and a medicament delivery device in which the thrust bearing assembly is integrated are also provided.
    Type: Grant
    Filed: July 14, 2010
    Date of Patent: February 24, 2015
    Assignee: Sanofi-Aventis Deutschland GmbH
    Inventors: James Holdgate, Christopher Langley, Christopher Jones
  • Publication number: 20150045742
    Abstract: The present invention relates to a medicament delivery device that is reliable, safe and intuitive to use and configured to prevent a subsequent does from being administered before a previously initialized dose has been fully delivered. This is accomplished by mechanically interacting structures arranged as an interface between a lockable delivery button and a release member.
    Type: Application
    Filed: September 29, 2014
    Publication date: February 12, 2015
    Inventor: Kenny Kai Fung Cheung
  • Patent number: 8939945
    Abstract: A lead screw (5) with a screw thread (6) is arranged in a body (1) along an axis (4) and coupled to a lead screw nut (7) with a drive feature (8), so that the lead screw is helically rotatable in the lead screw nut. The lead screw and the lead screw nut are provided with stop features (9) interfering with a rotation of the lead screw in the lead screw nut when a force is applied to the lead screw in an axial direction. The lead screw nut has a surface area facing a guide feature (10) of the body. This surface area has a slope (12) varying around the axis. The assembly interacts such that the lead screw nut rotates in one rotational direction when a force is applied to the lead screw in the axial direction.
    Type: Grant
    Filed: September 29, 2010
    Date of Patent: January 27, 2015
    Assignee: Sanofi-Aventis Deutschland GmbH
    Inventors: Robert Veasey, David Plumptre, Christopher Jones, Garen Kouyoumjian, Catherine Anne MacDonald
  • Patent number: 8926568
    Abstract: A medicament delivery device includes a housing for a medicament container assembly; a drive member interactively connected to the assembly for expelling a dose of medicament; a dose actuation assembly operably connected to the drive member; and an actuation member interactively connected to the housing and the dose actuation assembly by a gear assembly. The actuation member is movable generally perpendicularly to a longitudinal axis of the device from an initial position, in which the actuation member is positioned within the housing, to a dose-set position, in which a portion of the actuation member protrudes a distance proportional to the set dose from the longitudinal surface of the housing when the dose actuation assembly. The actuation member is manually operated in a direction generally perpendicular to the longitudinal axis of the device from the dose-set position to the initial position for driving the dose actuation assembly and drive member.
    Type: Grant
    Filed: May 9, 2011
    Date of Patent: January 6, 2015
    Assignee: SHL Group AB
    Inventor: Anders Holmqvist
  • Patent number: 8915888
    Abstract: The present invention relates to drive mechanisms suitable for use in drug delivery devices, in particular pen-type injectors, wherein a number of pre-set doses of medicinal product can be administered. In particular, the present invention relates to such drug delivery devices where a user may activate the drug delivery device.
    Type: Grant
    Filed: May 15, 2009
    Date of Patent: December 23, 2014
    Assignee: Sanofi-Aventis Deutschland GmbH
    Inventors: Malcolm Boyd, Richard Letham, David Plumptre, Robert Veasey, James May, Matthew Jones, Samuel Ghazaros
  • Patent number: 8911411
    Abstract: An injection device with a travelling clutch which can be shifted between two different positions by the activation of an injection button. In the first position, the injection button and the driver is allowed to rotate relatively to the piston rod, which is blocked from rotation by the clicker element. In the second position, the drive sleeve and the injection button is axially movable while the piston rod is allowed to rotate.
    Type: Grant
    Filed: June 28, 2010
    Date of Patent: December 16, 2014
    Assignee: Novo Nordisk A/S
    Inventor: Lars Ulrik Nielsen
  • Patent number: 8858512
    Abstract: The present invention related to an injector is provided. The injector includes a case body, a dose setting, a first engagement, a second engagement, an elasticity element, and a button. The dose setting is used to preset a dose. The first engagement is connected with the dose setting. The elasticity element is connected between the first engagement and the second engagement. When the elasticity element is in an extension state, the first engagement and the second engagement are separated. When the button is pushed, the elasticity element is entered into a compress state to combine the first engagement and the second engagement, and then push the dose setting.
    Type: Grant
    Filed: March 26, 2012
    Date of Patent: October 14, 2014
    Assignee: Taidoc Technology Corporation
    Inventors: Yi-Hsin Huang, Chih-Chiang Yang, Chao-Wang Chen
  • Publication number: 20140288505
    Abstract: An assembly for a drug delivery device is provided the assembly comprising a cartridge adapted and arranged to contain at least one dose of a drug, a bung being slidably arranged within the cartridge, a housing comprising a distal end and a proximal end, and a piston rod adapted and arranged for moving the bung in the distal direction with respect to the housing for dispensing a dose of the drug. The assembly further comprises a drive member and arranged for transferring movement to the piston rod for dispensing the dose, and an engagement member configured to mechanically cooperate with the piston rod and with the housing.
    Type: Application
    Filed: October 11, 2012
    Publication date: September 25, 2014
    Applicant: SANOFI-AVENTIS DEUTSCHLAND GMBH
    Inventor: Michael Harms
  • Patent number: 8834158
    Abstract: A screw syringe having a piston spindle with an external thread, a syringe barrel, having a sleeve with a piston end, and a female part with an internal thread is disclosed. The female part slides onto the piston end. The female part has a flange that creates a form fit with a counter-surface at the piston end so axial displacement of the female part in relation to the syringe barrel in the discharge direction is prevented. The female part has retaining surfaces that create a form fit with counter-retaining surfaces of the piston end, thereby preventing axial displacement of the female part in relation to the syringe barrel counter to the discharge direction. The retaining surfaces and counter-retaining surfaces create a form fit that prevents radial relative movement between the retaining surfaces and the counter-retaining surfaces, directed perpendicularly to the sliding direction.
    Type: Grant
    Filed: March 21, 2012
    Date of Patent: September 16, 2014
    Assignee: VOCO GmbH
    Inventors: Uwe Leiner, Manfred Thomas Plaumann
  • Publication number: 20140257241
    Abstract: Various handheld medical dispensing configurations and methods including the following: Handheld medical dispensing system comprises a syringe, which has a plunger, releasably mounted to syringe actuation apparatus, the apparatus having an actuator configured such that it can move the plunger more than once to dispense a plurality of amounts of substance from the syringe. A method of dispensing fluid from a syringe comprises holding a medical substance delivery system including a syringe, which has a needle, and which is secured to syringe actuation apparatus configured to dispense predetermined amounts of the substance from the syringe, penetrating the needle at one patient site and using the apparatus to deliver a predetermined amount of the substance, and penetrating the needle at another patient site and using the apparatus to deliver a predetermined amount of the substance.
    Type: Application
    Filed: May 23, 2014
    Publication date: September 11, 2014
    Applicant: Accunit, LLC
    Inventors: Howard S. SUTKIN, Jerry BOTKIN
  • Patent number: 8821440
    Abstract: An injection device has a dispensing chamber housing, a plunger, and a temperature control device. The dispensing chamber housing has a first part and a second part. The first part is thermally coupled to a needle. The second part is thermally coupled to the first part. The second part has an inner surface and an outer surface. The inner surface partially defines a dispensing chamber for holding a quantity of a substance. The plunger is engaged with an inner surface of the dispensing chamber housing, is capable of sliding in the dispensing chamber housing, and is fluidly sealed to the inner surface of the dispensing chamber housing. The temperature control device at least partially surrounds the dispensing chamber housing and is capable of altering a temperature of the substance in the dispensing chamber. The second part has a greater thermal coefficient than the first part.
    Type: Grant
    Filed: July 13, 2007
    Date of Patent: September 2, 2014
    Assignee: Alcon Research, Ltd.
    Inventors: Robert Sanchez, James Foster, Cesario Dos Santos
  • Patent number: 8702660
    Abstract: A device for delivering medicament includes a guide nut with guide ledges which cooperate with longitudinal grooves of a plunger rod for providing a rotational lock but allowing longitudinal movement of the plunger rod in relation to the guide nut that is rotationally locked to a distal housing part by engagement devices when the distal housing part and a proximal housing part are connected to each other. The device further includes a pressure release mechanism that includes slanting wedge-like surfaces arranged on the drive nut and slanting wedge-like surfaces arranged on a fixed inner annular surface of the distal housing part, which slanting wedge-like surfaces abut each other such that they move out of contact near the end of delivery of a predetermined quantity of medicament when the drive nut is rotated.
    Type: Grant
    Filed: September 7, 2009
    Date of Patent: April 22, 2014
    Assignee: SHL Group AB
    Inventor: Martin Karlsson
  • Patent number: 8672898
    Abstract: The present invention relates to a dose setting and expelling device comprising a drive member and a dose setting mechanism which simultaneously sets a given dose and stores the energy necessary for a subsequently driving the drive member in order to expel a dose of medicine from an injection device. According to the invention the dose setting mechanism allows adjustment in both directions, such that a given set dose can be reduced or cancelled by reversing the input motion, typically by rotating a setting member backwardly, this in contrast to the known devices which either requires an additional release mechanism or which cannot be reversed at all.
    Type: Grant
    Filed: October 22, 2004
    Date of Patent: March 18, 2014
    Assignee: Novo Nordisk A/S
    Inventor: Christian Enggaard
  • Patent number: 8652092
    Abstract: The invention relates to applicators (1) for implantation of an implant, having a cylinder (2) and a plunger (3) displaceably mounted therein, which plunger (3) has a pusher plunger (31) for pushing the implant out of a cannula, the cannula being mounted on a cylinder part, the cylinder part (4) being movably guided in the cylinder (2), there being provided a gear mechanism (5) which couples the plunger (3) to the cylinder part (4), a movement of the plunger (3) relative to the cylinder (2) being converted into an opposite movement of the cylinder part (4).
    Type: Grant
    Filed: May 4, 2006
    Date of Patent: February 18, 2014
    Assignee: Acino AG
    Inventor: Oliver Bussmann
  • Publication number: 20140005610
    Abstract: A dual chamber prefillable syringe (100) includes: a cylinder (10) which has a bypass portion (11); a hub luer-lock (20); a front stopper (30); a middle stopper (40) which seals a preparation (S) together with the front stopper (30); an end stopper (50) which seals a solvent (L) together with the middle stopper (40); a finger grip (60); and a plunger rod (70) which is connected to the end stopper from the rear end side. A female screw portion (64) which is screwed around the axis line is formed on an inner circumferential surface of the finger grip (60), and a male screw portion (73) which is able to be screwed to the female screw portion is formed on an outer circumferential surface of the plunger rod (70).
    Type: Application
    Filed: November 16, 2011
    Publication date: January 2, 2014
    Inventor: Harumi Kakiuchi
  • Patent number: 8617109
    Abstract: The present invention relates to a device for the delivery of predetermined doses of liquid medicament to a patient, which medicament is intended to be inhaled by the patient or intended to be injected into the body of the patient. The device is adapted to be in a medicament delivery state and in a medicament non-delivery state. When the device is in a medicament delivery state, said device is adapted to drive a piston into a cartridge containing the liquid medicament to be delivered, with a force that is above or equal to a predetermined minimum force value and below a predetermined maximum force value. The minimum force value is the lowest force value needed to deliver the predetermined dose and the maximum force value is the first force value at which it exists a risk of damaging the cartridge or the components of the device. Further, more of the spring force is brought to an efficient output torque ensuring that a predetermined volume of medicament is expelled from a cartridge.
    Type: Grant
    Filed: May 22, 2006
    Date of Patent: December 31, 2013
    Assignee: SHL Group AB
    Inventors: Victor Kronestedt, Lennart Brunnberg, Stephan Olson, Tomas Deurell, Anders Karlsson
  • Publication number: 20130304021
    Abstract: Extension rods of a telescoping assembly (TSA) may be assembled in a single direction. The rods may optionally be threaded together from a reverse extended configuration. The rods may optionally resist disattachement during extension. The inner rod may optionally included a leading fastener and/or the outer rod may optionally include a rear fastener. Each rod may optionally be molded as a single piece. End caps may optionally be added to the TSA after extension of the rods. An end cap may optionally include a rotation stopper. In some embodiments the TSA may include a supporting shoulder.
    Type: Application
    Filed: April 30, 2013
    Publication date: November 14, 2013
    Inventor: MEDIMOP MEDICAL PROJECTS LTD.
  • Patent number: 8545442
    Abstract: An inflation device including a handle mechanism configured to selectively engage and disengage threads within the device. In some instances the threads are configured to couple a plunger to a syringe body. The handle mechanism may be configured to (1) provide a mechanical advantage and (2) change the location and direction of the input force, thereby making the device easier to use.
    Type: Grant
    Filed: May 4, 2012
    Date of Patent: October 1, 2013
    Assignee: Merit Medical Systems, Inc.
    Inventors: Fred Lampropoulos, Brian Stevens, William Padilla, Gregory R. McArthur