Spring Drives Piston Patents (Class 604/135)
  • Patent number: 7896843
    Abstract: A compact, nonelectric fluid dispenser for use in controllably dispensing beneficial agents such as propofol and dexmedetomidine hydrochloride to patients. The dispenser includes a fluid flow control assembly that precisely controls the flow of the medicament solution to the patient and embodies a collapsible drug container that can be filled in the field with the beneficial agents to be delivered to the patient. The unit-dose fluid dispenser of the invention is presented in a sterile and aseptic manner, where the drug has been pre-filled in the system, so that the practitioner cannot mistakenly give the wrong drug to the patient. The dispenser uniquely provides a more efficient medicament delivery system for procedure rooms, such as the endoscopy center, so that a greater number of patients can be treated per day at a higher standard of care with increased profits for the healthcare provider.
    Type: Grant
    Filed: October 15, 2008
    Date of Patent: March 1, 2011
    Assignee: BioQuiddity, Inc.
    Inventors: Marshall S. Kriesel, Joshua W. Kriesel, Thomas N. Thompson
  • Patent number: 7896850
    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 predetermined force value. The device is designed and arranged to ensure that the predetermined dose of medicament expelled from the cartridge has a high degree of accuracy and to show the user in a simple manner how much medicament is remaining in the cartridge after a dose or several doses has/have been expelled and at the same time offering a shorter device, which is more convenient for the user when he/she has to carry it with him/her.
    Type: Grant
    Filed: May 22, 2006
    Date of Patent: March 1, 2011
    Assignee: Telefonaktiebolaget L M Ericsson (publ)
    Inventors: Victor Kronestedt, Lennart Brunnberg, Stephan Olson
  • Patent number: 7896841
    Abstract: An injection device that self-administers a painless vaccine injections. The injection device (10) can be secured to the patient's skin via a separable base portion (12) of the housing of the device, which can be separated from the device when removing the housing and syringe assemblies for disposal. The injection device can provide a method for substantial amount of time performing the injection procedure, that is relatively simple and inexpensive to perform and operate, and that provides a relatively high degree of safety for both the medical personnel and for the patient. The injection device is configured for easy handling, and is manually-powered by the use of the hand or fingers of the medical technician. The device can also comprise a plurality of vaccine syringes at the same time with a single device.
    Type: Grant
    Filed: February 17, 2005
    Date of Patent: March 1, 2011
    Assignee: Children's Hospital Medical Center
    Inventors: Eric James Wall, Jarvis Ward, Christopher J. Nesbitt, Daniel Frederick Nesbitt
  • Patent number: 7879007
    Abstract: An injection appliance including a housing, a product container received by the housing and containing a product, a piston received in the housing in such a way that it can be displaced in a forward direction to dispense the product, a piston rod which acts on the piston in the forward direction, and a spring which acts on the piston rod in the forward direction, wherein, in one embodiment, the spring includes at least two adjacent spring sections each having a different buckling resistance in relation to the same length when the piston rod is a forward position and, in another embodiment, the appliance includes a spring guiding structure that is entrained or in use during a forward movement of the piston rod and secures the spring against buckling, wherein, when the piston rod is in the forward position, the guiding structure extends past an end of the rod.
    Type: Grant
    Filed: August 17, 2007
    Date of Patent: February 1, 2011
    Assignee: TecPharma Licensing AG
    Inventor: Edgar Hommann
  • Publication number: 20110009821
    Abstract: The present invention relates to a medical injection device (1) for use in combination with a medicament filled cartridge (2), the injection device being provided with a spring-assisted injecting mechanism where energy released from the spring moves a plunger (3) of a held cartridge (2). Sensor circuitry is adapted to detect speed related data during injection so at to detect an abnormal speed condition, such as a needle blocking condition, a priming condition or an air purge condition. The invention also relates to a medical injection device comprising sensor circuitry and user communicating means to provide a recommended needle retraction waiting period which is dependent on the speed of injection.
    Type: Application
    Filed: December 31, 2008
    Publication date: January 13, 2011
    Inventors: Søren Kragh Jespersen, Claus Urup Gjødesen, Andre Larsen
  • Patent number: 7862543
    Abstract: A drug delivery system is disclosed which may be a throwaway or reusable device for delivery at least one drug to a patient. Also described is a method for administering a drug using said device and a packaged drug for use with said device. The drug delivery device (10) comprises a housing (12), a means (14) for generating a force capable of pushing a drug (16) from a packaging (18) into a human or animal body, a means (20) for transmitting said force to push the drug (16) from the packaging (18) into the human and animal body, and a means (38, 42b) for triggering the device. Where the device is a single use drug delivery system, a packaged drug (100) forms an integral part of the device. The packaged drug comprises a region (102) allowing it to be slidably mounted to the drug delivery device (10).
    Type: Grant
    Filed: July 18, 2003
    Date of Patent: January 4, 2011
    Assignee: Glide Pharmaceutical Technologies Limited
    Inventors: David S. Potter, Charles D. Ogilvy Potter
  • Publication number: 20100324480
    Abstract: An apparatus for applying medicament delivery pressure to a plunger pad of a plunger of a syringe includes a spring having a first end and a second end, wherein the spring first end is operable to abut the plunger pad. The assembly also includes a shell including an interior and a first step therein. A cap is disposed within the shell interior. The cap includes a surface for engaging the spring second end. The cap is movable from a first position, wherein the shell first step retains the cap in releasable engagement with the plunger such that the spring is compressed between the cap surface and plunger pad, and a second position, wherein the cap disengages the shell first step such that the cap disengages the plunger such that the spring expands to move the barrel and needle forward as well as deliver medicament delivery pressure to the plunger pad.
    Type: Application
    Filed: June 17, 2009
    Publication date: December 23, 2010
    Inventor: Thomas Chun
  • Patent number: 7846132
    Abstract: A cannula insertion device includes a housing defining an opening for receiving therethrough a cannula and further defining a channel, and a cannula forming a lumen, the cannula adapted for sliding movement within the housing from a retracted position to an extended position. When the cannula is in the retracted position, the lumen is located remotely from the channel and the channel is in fluidic communication with the opening. When the cannula is in the extended position, the lumen is in fluidic communication with the channel.
    Type: Grant
    Filed: October 14, 2008
    Date of Patent: December 7, 2010
    Assignee: CeQur SA
    Inventors: Peter Gravesen, Heiko Arndt
  • Patent number: 7837653
    Abstract: A compact fluid dispenser for use in controllably dispensing fluid medicaments, such as antibiotics, analgesics, and the like medicinal agents from the reservoir of the device. Uniquely, the dispenser includes a novel bellows-type reservoir and vial fill means for filling the bellows-type reservoir with the medicament to be dispensed. The dispenser also includes a novel stored energy source in the form of a constant force spring which controllably urges the medicinal fluid from the device reservoir. Additionally, the apparatus of the invention includes a novel adjustable flow rate control assembly that is disposed intermediate the fluid reservoir outlet and the outlet port of the device for precisely controlling the rate of fluid flow from the outlet port toward the patient.
    Type: Grant
    Filed: February 13, 2006
    Date of Patent: November 23, 2010
    Assignee: BioQuiddity, Inc.
    Inventors: Marshall S. Kriesel, Joshua W. Kriesel, Alan D. Langerud
  • Publication number: 20100274185
    Abstract: An apparatus for actuating a syringe. The syringe includes a barrel, a plunger and a needle. A needle shield is near the front of the barrel and is movable from a first position enclosing the needle and a retracted position wherein the needle is exposed. A spring abuts the plunger. A cap has an interior wall for engaging the spring and releasably engages the plunger. The spring is compressed between the plunger and the interior wall when the cap releasably engages the plunger. A resilient member releasably secures the cap in releasable engagement with the plunger and is movable from a first position to a compressed position when the needle shield is moved from its first position to its retracted position. The cap disengages the plunger when the resilient member is moved to the compressed position wherein the spring expands to provide a medicament delivery pressure to the plunger.
    Type: Application
    Filed: April 28, 2009
    Publication date: October 28, 2010
    Inventor: Thomas Chun
  • Patent number: 7789857
    Abstract: An infusion medium delivery system, device and method for delivering an infusion medium to a patient-user, includes a needle inserter device and method for inserting a needle and/or cannula into a patient-user to convey the infusion medium to the patient-user. The needle inserter device and method operate to insert a needle and cannula into a patient-user's skin and automatically withdraw the needle from the patient-user, leaving the cannula in place and in fluid flow communication with a reservoir. The delivery device may include a base portion and a durable portion connectable to the base portion, and wherein the base portion can be separated from the durable portion and disposed of after one or more specified number of uses. The base portion supports the reservoir and the needle inserter device, while the durable portion supports a drive device for selectively driving the infusion medium out of the reservoir and into the needle and/or cannula.
    Type: Grant
    Filed: December 26, 2006
    Date of Patent: September 7, 2010
    Assignee: Medtronic Minimed, Inc.
    Inventors: Sheldon B. Moberg, Paul F. Bente, IV, Bradley J. Enegren, Christopher G. Griffin, Ian B. Hanson, Julian D. Kavazov, R. Paul Mounce, William H. Stutz, Jr.
  • Patent number: 7789858
    Abstract: An administering device for a fluid product includes a product receptacle that accommodates the product to be administered, a fluid reservoir for a driving fluid, a driving means, a product chamber, and a fluid connection. The product receptacle includes an opening at a forward end and a product stopper at a rear end. The driving means acts upon the fluid reservoir, the pressure chamber adjoins the product stopper while the fluid connection is located between the fluid reservoir and the pressure chamber, and the driving means acts upon the fluid reservoir in such a way that the pressure chamber is impinged upon by pressure which affects the product stopper and the product is discharged from the product receptacle.
    Type: Grant
    Filed: October 24, 2007
    Date of Patent: September 7, 2010
    Assignee: TecPharma Licensing AG
    Inventor: Fritz Kirchhofer
  • Publication number: 20100222742
    Abstract: The present invention relates to an injection device comprising a housing, a container containing medicament to be injected through a needle (34) attachable to said container, drive means (46) operatively acting on said container for injecting said medicament, the drive means comprising a gas spring (50), locking (57) and activating means (56) arranged to hold said gas spring in a loaded state, and when activated, releases said gas spring to inject said medicament.
    Type: Application
    Filed: October 7, 2008
    Publication date: September 2, 2010
    Applicant: SHL GROUP AB
    Inventor: Stefan Högdahl
  • Publication number: 20100186739
    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: Application
    Filed: May 22, 2006
    Publication date: July 29, 2010
    Inventors: Victor Kronestedt, Lennart Brunnberg, Stephan Olson, Tomas Deurrell, Anders Karlsson
  • Patent number: 7758550
    Abstract: An injection device for administering a liquid product, the device including a drive mechanism, an engaging member and a catch including a number of latching elements, wherein at least one of the engaging member and the number of latching elements is relatively moveable to the other to generate a haptic and/or acoustic signal comprising a number of discrete signals during a relative movement, wherein one of the catch and the engaging member is coupled to the drive mechanism and the drive mechanism generates a variable drive speed during the relative movement, and wherein the latching elements are a distance (x0; x0-?x) from each other such that a time interval between each of the number of discrete signals is constant. A method for generating a haptic and/or acoustic signal in use of an injection device is encompassed.
    Type: Grant
    Filed: March 21, 2008
    Date of Patent: July 20, 2010
    Assignee: TecPharma Licensing AG
    Inventors: Markus Bollenbach, Patrick Hostettler, Daniel Kuenzli, Ralph Mosimann, Ursina Streit
  • Patent number: 7749195
    Abstract: A device for administering an injectable product including an insertion mechanism for inserting an injection needle into a tissue, the insertion mechanism including a first pressure element, a delivery mechanism for delivering the product from a product container, the delivery mechanism including a second pressure element, and a trigger for triggering the insertion and delivery mechanisms, wherein, when triggered, the insertion mechanism is moved by the first pressure element in an insertion direction from an initial position to an insertion position and the delivery mechanism remains at rest relative to the insertion mechanism until the insertion position is reached.
    Type: Grant
    Filed: March 10, 2006
    Date of Patent: July 6, 2010
    Assignee: TecPharma Licensing AG
    Inventor: Edgar Hommann
  • Patent number: 7744561
    Abstract: A needleless injection device comprising a cylinder for medicine having an injection nozzle at a forward end thereof and an opening at its rearward end; a piston sliding in the cylinder through said open end, in use, to drive the medicine through the nozzle; a ram to drive the piston into the cylinder and having a longitudinal axis; and a mechanical energy accumulator to drive the ram when discharged and disposed between the ram and a discharge assembly, a rear end of the ram extending into said discharge assembly; wherein the discharge assembly comprises a retention member fixed in the assembly, said retention member having a plurality of retention elements spaced around and adapted to locate on the ram when in a charged position of the ram, and a release ring surrounding said retention elements to prevent radial outward displacement thereof and discharge of the ram; and wherein axial displacement of said release ring releases said retention elements and causes discharge of the ram by said accumulator; chara
    Type: Grant
    Filed: October 20, 2003
    Date of Patent: June 29, 2010
    Assignee: The Medical House Plc
    Inventor: Kevin Stamp
  • Patent number: 7740618
    Abstract: A ratchet-free and gear-free one-to-one mechanism for setting a dose in a syringe device comprising a dose setting member adapted to be rotated along a piston rod with a threaded outer surface so as to set a dose to be ejected. During dose setting the piston rod is locked such that rotational movement of the dose setting member does not result in rotational movement of the piston rod. During dose ejection the piston rod and the dose setting member are locked in relation to each other such that translational movement of the dose setting member causes relative rotational and translational movement of the piston rod.
    Type: Grant
    Filed: October 13, 2005
    Date of Patent: June 22, 2010
    Assignee: Novo Nordisk A/S
    Inventor: Tom Hede Markussen
  • Patent number: 7736333
    Abstract: An automatic mixing and injecting apparatus comprises a syringe assembly (400) within a housing (100). The syringe assembly (400) has a chamber (425) for holding a liquid, which can be a liquid medicine or a solvent. A second chamber (460) may hold a dry medicine. The second chamber (460) is releasably sealed with respect to the first chamber (425). A spring-operated plunger (300) forces liquid from the first chamber (425) and causes the releasable seal (430) to disengage when the needle (540) has entered the recipient. At this time, the liquid flows through the second chamber (460) and dissolves any dry medicine in that chamber (460). A releasable coupling (340) disengages the plunger (300) from the driver spring (500) and allows the plunger (300), syringe assembly (400), and needle (540) to retract under the urging of a return spring (505).
    Type: Grant
    Filed: June 20, 2003
    Date of Patent: June 15, 2010
    Assignee: West Pharmaceutical Services of Delaware, Inc.
    Inventor: Richard D. Gillespie, III
  • Publication number: 20100145275
    Abstract: The invention relates to a device (1) for delivering two predetermined doses of a product (3), comprising:—a container (2) for containing said product, said container having a distal end (2d) through which the product is delivered under the distal pressure of a piston,—a pusher (7) movable with respect to said container for causing said piston (4) to move in the distal direction from an initial position, in which none of said product has been expelled to a first position, in which a first dose of said product has been expelled, and to a second position, in which a second dose of said product has been expelled,—a holder body (15) receiving said container and said pusher (7),—biasing means (22) for urging said pusher (7) in the distal direction, from the initial to the first position, and to the second position,—first and second retaining means (9, 11, 19) for maintaining said pusher (7) in said initial position, and in said first position,—first and second actuation means (18) to deactivate said first and seco
    Type: Application
    Filed: November 15, 2007
    Publication date: June 10, 2010
    Applicant: BECTON DICKINSON FRANCE S.A.S.
    Inventors: Guillaume Grunhut, Patrick Dupuis
  • Patent number: 7731698
    Abstract: A device for administering an injectable product in doses including a casing having a receptacle for a container which contains the product and accommodates a piston such that the piston can advance towards an outlet for delivering a selected product dosage, a dosing member, with which a dosing movement can be performed relative to the casing for selecting the product dosage, a drive unit, which can be coupled to the casing and the dosing member such that the drive unit can be adjusted relative to the casing from a dosing starting position to a dosing end position by the dosing movement of the dosing member, an operating mechanism which causes the drive unit to perform a delivering movement by which the piston is advanced towards the outlet, and a restoring spring, which is secured in a tensioned state and is coupled to the drive unit by a release for causing a restoring movement of the drive unit towards its dosing starting position.
    Type: Grant
    Filed: September 28, 2005
    Date of Patent: June 8, 2010
    Assignee: TecPharma Licensing AG
    Inventors: Simone Geiser, Hanspeter Heiniger
  • Publication number: 20100137798
    Abstract: An injection device, in some embodiments an autoinjector, which includes a thrust spring that advances an injection needle from an initial position to an insertion position from the distal end of the injection device and that causes a product to be emptied from the product reservoir by an emptying movement, and a return spring that retracts the injection needle from the insertion position into the distal end of the injection device counter to the force of the thrust spring, wherein the return spring is decoupled from the thrust spring during the emptying movement.
    Type: Application
    Filed: September 21, 2009
    Publication date: June 3, 2010
    Inventors: Ursina Streit, Markus Bollenbach, Patrick Hostettler, Daniel Kuenzli
  • Patent number: 7726588
    Abstract: A locking tensioning mechanism for a miniaturised high pressure generator is disclosed, which mechanism will allow delivery of a set volume of a liquid, and the volume to be delivered by a high pressure generator can be altered subsequently by adjusting one of the stops of the spring component, which locking tensioning mechanism may be used in a high pressure generator for producing an inhalable aerosol or in a needleless injector for injecting a volume of a liquid into animal or plant tissue.
    Type: Grant
    Filed: July 1, 2005
    Date of Patent: June 1, 2010
    Assignee: Boehringer Ingelheim International GmbH
    Inventors: Gilbert Wuttke, Michael Schyra, Andreas Fiol, Joachim Eicher
  • Publication number: 20100130930
    Abstract: An autoinjector comprising an outer housing in which is mounted a syringe, the autoinjector further comprising an inner housing intermediate the outer housing and the syringe and an energy source in communication with said inner housing, wherein the inner housing is moveable by the energy source between three positions, namely a first position in.
    Type: Application
    Filed: March 4, 2008
    Publication date: May 27, 2010
    Applicant: THE MEDICAL HOUSE PLC
    Inventors: Kevin Stamp, Charles Ian Cleathero
  • Patent number: 7717877
    Abstract: An injector is automatic in that the needle is inserted into the injection site (e.g., a patient's skin) with user or caregiver assistance, the delivery is automatically initiated upon needle insertion, and the needle is retracted automatically after the end of delivery. Preferably the needle is not seen by the user prior to, during or after injection. Prior to and after injection, the needle is hidden in the device so as to avoid any potential injury or health risk to the user or health care provider. The injector includes a housing and a shield arranged to slide relative to the housing and a driver moving during drug delivery. The housing and shield form a cartridge enclosure. The cartridge is shielded and locked after delivery is completed. A needle-locking mechanism can be used in any number of pen-like injectors or safety needles.
    Type: Grant
    Filed: July 28, 2004
    Date of Patent: May 18, 2010
    Assignee: SID Technologies, LLC
    Inventors: Gilad Lavi, Izrail Tsals
  • Publication number: 20100121274
    Abstract: A portable infusion device is provided that includes a cylindrical housing having a housing end, an inflatable cartridge sized to fit within the housing and a piston located within the housing. The cartridge can include a cartridge end having an inlet and an outlet. The cartridge end can be connected to an inflatable portion and be configured to be releasably secured to the housing end when the cartridge is inserted into the housing through the housing end. The piston can include at least one biasing device positioned to apply a constant force to the inflatable portion to expel a medical fluid from the cartridge.
    Type: Application
    Filed: November 12, 2008
    Publication date: May 13, 2010
    Applicants: BAXTER INTERNATIONAL INC., BAXTER HEALTHCARE S.A.
    Inventors: SEIK OH, Kwan J. Kim
  • Publication number: 20100114025
    Abstract: The invention relates to an injection device for injecting a dose of drug. The injection device comprises a housing, a dose setting mechanism being operable to set a desired dose, an injection mechanism comprising a piston rod (7) adapted to cooperate with a piston positioned in a cartridge containing a drug to be delivered in order to cause a set dose to be delivered from the cartridge via the injection device, a dosage tube (6), and retaining means arranged to prevent axial movement of the dosage tube in a distal direction relatively to the housing during dose setting. The dose setting mechanism comprises a rotatable dose knob (24), operation of the dose setting mechanism causing energy to be stored in a spring member. The injection mechanism is driven by releasing energy previously stored in the spring member during dose setting.
    Type: Application
    Filed: March 14, 2008
    Publication date: May 6, 2010
    Applicant: Novo Nordisk A/S
    Inventor: Claus Schmidt Møller
  • Patent number: 7708163
    Abstract: Systems, devices, and methods are provided for dispensing material from a container. Devices can include driving arrangement for providing one or more forces, and actuator for activating the driving arrangement whereby the driving arrangement causes material to be dispensed from the container.
    Type: Grant
    Filed: February 23, 2006
    Date of Patent: May 4, 2010
    Assignee: Trivascular2, Inc.
    Inventor: Jeffery C. Argentine
  • Publication number: 20100106090
    Abstract: A disposable injector with a housing (10) in which a mechanical spring energy reservoir, a cylinder/piston unit (100), a piston-actuating ram (60) and a trigger unit are arranged, wherein the spring energy reservoir comprises at least one pretensioned spring element, wherein at least part of the piston-actuating ram is positioned between the spring energy reservoir and the piston of the cylinder/piston unit, and wherein the piston (111) of the cylinder/piston unit is separately moveable via pump rod (140). The pump rod can be coupled releasably to the piston or to a piston rod of the piston. The cylinder of the cylinder/piston unit has a rear sealing element (105) that permits sterile closure of the cylinder interior located between the piston and the cylinder.
    Type: Application
    Filed: December 23, 2009
    Publication date: April 29, 2010
    Inventor: Rudolph Matusch
  • Patent number: 7699052
    Abstract: The present invention relates to a propellant-gas-free apparatus for the dispensing of liquids, a container cartridge suitable for this for storing the liquid and the ensemble comprising both. The invention comprises a device for the exertion of pressure and for accommodating a container cartridge and a container cartridge in which the dispensing facility is integrated.
    Type: Grant
    Filed: August 26, 2003
    Date of Patent: April 20, 2010
    Assignee: Boehringer Ingelheim Pharma GmbH & Co. KG
    Inventors: Joerg Schiewe, Gilbert Wuttke, Bernd Zierenberg, Stephen Dunne, Horst Wergen
  • Patent number: 7699802
    Abstract: A needle-less injector device that includes an outer housing and an inner housing that is slideably supported from the outer housing is disclosed. The inner housing supporting a vial that includes a nozzle for delivering a fluid held within the vial. A spring powered ram that is adapted for pushing a seal and plunger is mounted within inner housing. A skin tensioning spring mounted between the inner housing and the outer housing is used for pushing the leading end of the inner housing away from the outer housing. A trigger that cooperates with the spring-powered ram is used to release the ram from the cocked position only when the inner housing is in a firing position.
    Type: Grant
    Filed: May 3, 2005
    Date of Patent: April 20, 2010
    Assignee: PharmaJet, Inc.
    Inventors: Robert Steinway, John Bingham
  • Publication number: 20100094252
    Abstract: Exemplary embodiments provide subcutaneous implantation tools and methods of implanting a subcutaneous micro-device using the same. Exemplary embodiments provide subcutaneous implantation tools including a syringe body, a dissection body, and a delivery assembly. Additional exemplary embodiments provide methods of implanting a subcutaneous micro-device, including inserting the dissection body of the tool described by the exemplary embodiments into an implantation site, where the dissection body includes a micro-device, and delivering the micro-device.
    Type: Application
    Filed: October 14, 2008
    Publication date: April 15, 2010
    Applicant: Medtronic, Inc.
    Inventors: Eric J. Wengreen, John E. Lovins, Randy S. Roles, Robert J. Nehls
  • Patent number: 7686786
    Abstract: The present invention relates to a dial-down mechanism for an injection device comprising a torsion spring for assisting injection of a dose of medicament from the injection device, the dial-down mechanism comprising dial-up cam arranged to receive and engage with a dial-up key, wherein the dial-up cam and the dial-up key are adapted to, upon rotation of a dose setting member in a first direction, cooperate to strain the torsion spring of the injection device, and a dial-down cam arranged to receive and engage with a dial-down key, wherein the dial-down cam and the dial-down key are adapted to, upon rotation of the dose setting member in a second direction, cooperate to release the torsion spring of the injection device, the second rotation direction being opposite to the first rotation direction.
    Type: Grant
    Filed: October 20, 2005
    Date of Patent: March 30, 2010
    Assignee: Novo Nordiks A/S
    Inventors: Claus Schmidt Moller, Christian Peter Enggaard, Bo Radmer, Tom Hede Markussen
  • Publication number: 20100076379
    Abstract: A disposable injector with a housing that has at least one compression hook, which has at least one support surface respectively in the region of its free end. A piston-actuating plunger rests on the support surface. The locking position of the compression hook is secured by an actuating element positioned in a locked position. The actuating element has a locked position, in which it rests securely on a sealing cap. The actuating element has a triggering position, which effects lateral retreat of the compression hook when the piston-actuating plunger is released.
    Type: Application
    Filed: November 24, 2009
    Publication date: March 25, 2010
    Inventor: Rudolf Matusch
  • Publication number: 20100069845
    Abstract: A pen-type injector for receiving a medication containing member. The injector comprises a housing 1 and a torsion spring 4 contained within the housing and coupled to a drive member 8. A dose setting knob 2 is coupled to the spring 4, and rotatably coupled to the housing 1 such that rotation of the knob relative to the housing in a first direction results in compression or twisting of the spring. A user actuable trigger 12 is provided for releasing the spring 4 to push the drive member 8 through the housing 1. A user actuable button 6 is coupled to the housing 1 for axial motion relative thereto, said button 6 being coupled to the torsion spring 4 to cause the spring to unwind or expand in discrete steps with each press of the button.
    Type: Application
    Filed: September 17, 2009
    Publication date: March 18, 2010
    Applicant: OWEN MUMFORD, LTD.
    Inventors: JEREMY MARSHALL, Mark Eaton
  • Publication number: 20100069846
    Abstract: An injection device comprising an outer housing inside which is located a medicament-holding barrel with a needle at one end thereof, at least part of the needle being moveable in and out of the outer housing, a plunger moveable within the barrel, an inner housing intermediate the outer housing and the barrel and plunger and an energy source in communication with said inner housing. The inner housing is moveable by the energy source between a first position in which the plunger and barrel are movable axially so as to move at least part of said needle out of the outer housing; a second position in which the plunger is movable axially into said barrel so as to expel medicament through the needle; and a third position in which the plunger and barrel are able to retract in order to retract the needle into the outer housing.
    Type: Application
    Filed: November 23, 2009
    Publication date: March 18, 2010
    Applicant: THE MEDICAL HOUSE PLC
    Inventor: Kevin Stamp
  • Patent number: 7678085
    Abstract: An injection device for injecting selectable amounts of a substance includes an activating mechanism including an axially moveable operating button which can rotated in a resting position only, a tubular drive element non-rotatably connected to the operating button, an axially fixed and non-rotatable guiding element, and an axially moveable driven member held non-rotatably in the device. A rotational grid is operationally between rotatable and non-rotatable components of the injection device such that the operating button can be moved two rotational directions when in the resting position whereby a selected amount of the substance to be injected can be selectively varied. For example, a dosage inadvertently selected too large by rotating the operating button too far in one direction can, in accordance with the present invention, be reduced by rotating the operating button in the opposite direction.
    Type: Grant
    Filed: February 11, 2005
    Date of Patent: March 16, 2010
    Assignee: TecPharma Licensing AG
    Inventor: Roney Graf
  • Patent number: 7678081
    Abstract: Systems and methods for penetrating a tissue membrane to gain access to a target site are disclosed. In some examples, systems and methods for accessing the left atrium from the right atrium of a patient's heart are carried out by puncturing the intra-atrial septal wall. One embodiment provides a system for transseptal cardiac access that includes a guiding catheter, an access catheter and a guidewire. The access catheter may include a tissue penetration member disposed within a housing wherein the tissue penetration member is substantially contained within the housing when in a retracted configuration. When the distal end of the access catheter is disposed adjacent the septal wall, the user can initiate an actuator switch, which may be in a proximal portion of the system, to cause the tissue penetration member to extend through the septal wall.
    Type: Grant
    Filed: July 12, 2004
    Date of Patent: March 16, 2010
    Assignee: Pacesetter, Inc.
    Inventors: James S. Whiting, Neal Eigler, John L. Wardle
  • Publication number: 20100063446
    Abstract: A system for the metering and delivery of small discrete volumes of liquid is comprised of a small or minimal number of inexpensive components. One such component is a movable member, such as a miniature precision reciprocating displacement pump head, which is driven by an actuator that comprises a shape memory alloy material. The operating mechanism of the system is of little or minimal complexity. The system facilitates the precise metering and delivery of the small discrete volumes of liquid. Potential applications for the system include subcutaneous, long-term, automated drug delivery, for example, the delivery of insulin to a person with diabetes. In such an application, the small, simple and inexpensive nature of the invention would allow for its use as both a portable and a disposable system.
    Type: Application
    Filed: October 1, 2009
    Publication date: March 11, 2010
    Applicant: ABBOTT DIABETES CARE, INC.
    Inventors: Benjamin M. Rush, Christopher V. Reggiardo
  • Publication number: 20100057005
    Abstract: An intraosseous injection device includes a tool having a distal portion, a proximal portion, and a solution dispensing opening. The distal portion has one or more cutting surfaces. The tool can be coupled with a protective carrier. The tool can be rotatably coupled to a tool actuation mechanism. A housing has a distal end and a proximal end. The housing releasably receives a solution cartridge containing a solution. A solution dispensing mechanism dispenses solution from the solution cartridge. A gripping member grips a proximal portion of the tool. A rotation device rotates the gripping member and thereby rotates the tool about an axis. The proximal portion of the tool connects directly to the solution cartridge such that solution from the cartridge can be delivered through the solution dispensing opening. The tool is configured to rotate relative to the solution cartridge.
    Type: Application
    Filed: August 10, 2009
    Publication date: March 4, 2010
    Inventors: Ines M. Aravena, Ajay Kumar, Hamid Abedi
  • Patent number: 7670314
    Abstract: A manually-powered injection device that self-administers a painless injection. The injection device provides a method for substantially painless injections of vaccine and other medication into a patient that does not require the use of an anesthetic, that does not require the medical personnel to spend a substantial amount of time performing the injection procedure, that is relatively simple and inexpensive to perform and operate, and that provides a relatively high degree of safety for both the medical personnel and for the patient. The injection needle can have an outside diameter greater than 0.10 mm and less than about 0.38 mm. The vaccine or other medicament can be injected painlessly through the needle and into the patient at a substantially constant volumetric flow rate of about 0.05 ?L/s to about 50 ?L/s, typically over a 3- to 5-minute period of time.
    Type: Grant
    Filed: February 17, 2005
    Date of Patent: March 2, 2010
    Assignee: Children's Hospital Medical Center
    Inventors: Eric James Wall, Jarvis Ward, Christopher J. Nesbitt, Daniel Frederick Nesbitt
  • Publication number: 20100048991
    Abstract: The inside of a cylindrical body is divided into two parts, that is, a first and a second chamber, and in a piston body, a first ventilation hole and a first ventilation path of a pushing portion are formed so as to communicate with the first chamber and a second ventilation hole and a second ventilation path of the pushing portion are formed to communicate with the second chamber, and a spring for returning the piston body to its original position is provided. By pressing the pushing portion while closing the first ventilation port so as to advance the piston body, air is supplied through a syringe port on the first chamber, while by pressing the pushing portion while closing the second ventilation port, air is supplied through the syringe port on the second chamber, and by releasing the pushing operation, the piston body automatically returns to the original position.
    Type: Application
    Filed: August 18, 2009
    Publication date: February 25, 2010
    Applicant: FUJIFILM Corporation
    Inventor: Kenji YAMANE
  • Publication number: 20100049128
    Abstract: The application discloses a drug infusion system comprising a base and a drug dispenser. The base is configured to receive a cannula that delivers a drug to beneath a wearer's skin. The base is attachable to the skin of the wearer. The reusable drug dispenser is removably attachable to the base and has a pump unit configured to establish fluid communication between a removably attachable drug reservoir and the cannula. The pump unit pumps the drug to the wearer upon activation by the wearer. The pump unit may have an inlet to contact the drug within the reservoir, which may be a needle. The pump unit may also have a receiving unit to receive the reservoir. Such a receiving unit may be a tubular for a cylindrical reservoir, or may have a cavity or an encasing unit to hold the reservoir.
    Type: Application
    Filed: August 18, 2009
    Publication date: February 25, 2010
    Applicant: Calibra Medical, Inc.
    Inventors: John McKenzie, Travis Marsot, Brett Carter, Brett Cross
  • Publication number: 20100036320
    Abstract: A medicament dispensing mechanism is disclosed that is configured to eject successive doses of the medicament from a medicament chamber. An embodiment of the dispensing mechanism includes a housing and a plunger rod configured for ejecting the doses of medicament from the chamber. The dispensing mechanism further includes an actuation mechanism that comprises a trigger associated with the housing and having a ready and a fired position with respect thereto. The trigger is configured for manipulation by a user for successive movement in a generally axial dosing motion from the ready position to the fired position in which the trigger is associated with the plunger rod to cause the plunger rod to eject one of the doses of a predetermined volume and a resetting motion from the fired position to the ready position that comprises axial rotation, wherein the trigger is uncoupled from the plunger rod during the resetting motion.
    Type: Application
    Filed: August 5, 2009
    Publication date: February 11, 2010
    Inventors: Janice L. Cox, Matthew Rust, Thomas E. KraMer, Peter Hoeft
  • Publication number: 20100036319
    Abstract: An auto injector including: a housing; an outlet portion with a needle (110) moveable relative to the housing; a container (104) within the housing for containing medicament; and an actuatable deployment mechanism configured to deploy the outlet portion by moving the outlet portion relative to the housing and to eject medicament contained in the container through the outlet portion. The auto injector is configured to store a volume of fluid and includes a filling mechanism configured to expel the volume of fluid from the outlet portion and subsequently to draw medicament through the outlet portion and into the container. An adaptor (112) fits to the auto injector so as to cover the needle and includes a puncture member configured to puncture a vial, the puncture member providing fluid communication to the needle.
    Type: Application
    Filed: January 28, 2008
    Publication date: February 11, 2010
    Applicant: PA KNOWLEDGE LIMITED
    Inventors: David Drake, Douglas Ivan Jennings, Stuart David Cooper, Timothy Donald Barrow-Williams, Joseph Peter Corrigan, Rosalind Trudy Lee, David Whitaker
  • Publication number: 20100016796
    Abstract: The syringe includes a body portion having an interior barrel chamber. The chamber has a fill port and a discharge port. An injection needle will be fluidly connected to the discharge port in use. The syringe includes a handle, having one portion that is moveable. Slidable in the barrel chamber is a plunger shaft, having a plunger on its terminal end. The trigger is operationally connected to the plunger shaft, so that movement of the trigger (or activation of the trigger in an electronic trigger embodiment) results in a corresponding movement of the plunger shaft. Connecting to the syringe are the fluid line, and a communications cable. Communications cable will include a power lead, if needed, and communications lines for communication between the syringe and the various computers.
    Type: Application
    Filed: September 15, 2009
    Publication date: January 21, 2010
    Applicant: ANIMAL INNOVATIONS, INC.
    Inventor: Kevin J. Derichs
  • Publication number: 20090318865
    Abstract: An injection device (1) for injecting a dose of drug, e.g. insulin for diabetes treatment, in which energy is stored in a spring member (9, 24) during dose setting. The stored energy is released and used for driving an injection mechanism during injection of a previously set dose. The injection device (1) further comprises means for electronically detecting the amount of a set dose and/or means for electronically detecting the amount of an injected dose. The electronic detecting means allows storage and/or logging of data relating to injections performed using the injection device (1).
    Type: Application
    Filed: September 28, 2007
    Publication date: December 24, 2009
    Applicant: NOVO NORDISK A/S
    Inventors: Claus Schmidt Møller, Bo Kvolsbjerg
  • Patent number: 7635348
    Abstract: Containers for automatic injectors and automatic injectors adapted for those containers are disclosed. The containers include structures adapted to retain and, optionally, cripple the needle of the automatic injector when the automatic injector is inserted into the container after use. Depending on the embodiment, an indicator may be included, either as part of the container or as part of the automatic injector, to indicate whether or not the automatic injector has been used. If the indicator is provided as a part of the automatic injector, a corresponding portion of the container may be formed of a light permeable material. The container may also include features, such as an eyelet over the closed end, designed to cushion the automatic injector. Cushioning and shock absorbing features may also be provided inside the container. A clip is also disclosed. The clip is designed to attach two or more containers together.
    Type: Grant
    Filed: November 2, 2004
    Date of Patent: December 22, 2009
    Assignee: Meridian Medical Technologies, Inc.
    Inventors: Sophie Rebecca Raven, Matthew Egerton Young, Paul Greenhalgh, Stephen Pilip Kirkwood, Colin James Mathews, Joseph William Daintrey, John G. Wilmot
  • Publication number: 20090308386
    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 predetermined force value. The device is designed and arranged to ensure that the predetermined dose of medicament expelled from the cartridge has a high degree of accuracy and to show the user in a simple manner how much medicament is remaining in the cartridge after a dose or several doses has/have been expelled and at the same time offering a shorter device, which is more convenient for the user when he/she has to carry it with him/her.
    Type: Application
    Filed: May 22, 2006
    Publication date: December 17, 2009
    Applicant: SHL Medical AB
    Inventors: Victor Kronestedt, Lennart Brunnberg, Stephan Olson
  • Publication number: 20090312707
    Abstract: A pharmaceutical delivery device with triggered automatic needle insertion and manually controlled pharmaceutical injection.
    Type: Application
    Filed: June 19, 2006
    Publication date: December 17, 2009
    Inventors: Steven Bishop, Adrian Benton James, John W. Lai, Robert Ian Lister, Nancy J. Serpiello