Reciprocating Piston Type Patents (Class 604/152)
  • Patent number: 10780217
    Abstract: Ratchet-based drive systems for more reliable and safer drug delivery are provided. The ratchet-based drive systems restrict angular movement and/or linear movement of components that cause a plunger to expel a liquid drug from a drug container. Movement of the components can be restricted to correspond to a predetermined or desired portion of the liquid drug. In the case that control of the drive system is lost or fails, the maximum amount of drug that could be delivered is limited to a known amount, thereby reducing the likelihood of an overdose.
    Type: Grant
    Filed: November 10, 2017
    Date of Patent: September 22, 2020
    Assignee: INSULET CORPORATION
    Inventors: David Nazzaro, Simon Kozin, Maureen McCaffrey
  • Patent number: 10744257
    Abstract: A method, computer program product, and infusion pump assembly for determining a first rate-of-change force reading that corresponds to the delivery of a first dose of an infusible fluid via an infusion pump assembly. At least a second rate-of-change force reading is determined that corresponds to the delivery of at least a second dose of the infusible fluid via the infusion pump assembly. An average rate-of-change force reading is determined based, at least in part upon the first rate-of-change force reading and the at least a second rate-of-change force reading.
    Type: Grant
    Filed: May 17, 2019
    Date of Patent: August 18, 2020
    Assignee: DEKA PRODUCTS LIMITED PARTNERSHIP
    Inventors: Marc A. Mandro, Robert J. Bryant
  • Patent number: 10737032
    Abstract: An apparatus for use in injectate delivery includes an actuator including a linkage, a force generating mechanism mechanically coupled to the linkage, and a controller coupled to the force generating mechanism. The force generating mechanism includes a passive force generator and an active force generator. In operation and on the basis of a control signal, the controller is configured to control the force generating mechanism to provide an input force to the linkage that is a combination of the first force provided by the passive force generator and a second force provided by the active force generator.
    Type: Grant
    Filed: November 25, 2015
    Date of Patent: August 11, 2020
    Assignee: Portal Instruments, Inc.
    Inventors: Andrew Coats, Robert J. Dyer
  • Patent number: 10675413
    Abstract: The present invention relates to a delivery device for delivering predetermined amounts of fluid, comprising a body (10), a container (16) filled with fluid to be delivered arranged inside said body, said container comprising an opening for expelling said fluid and a wall (18) movable inside said container (16), a threaded plunger rod (46) arranged movable inside said body (10) in the longitudinal direction and in contact with said movable wall (18), a manually operated push means (14, 60) movable in the longitudinal direction capable of, upon operation, move said plunger rod (46) towards said movable wall (18), thereby expelling fluid, and means for transforming a generally linear movement of said push means (14, 60) to a rotational movement of said plunger rod (46).
    Type: Grant
    Filed: March 15, 2016
    Date of Patent: June 9, 2020
    Assignee: SHL MEDICAL AG
    Inventors: Carlos Guillermo, David Desalvo, Lucio Giambattista
  • Patent number: 10596325
    Abstract: A pen-type drug injection device is disclosed which comprises a housing having a longitudinal axis, a threaded piston rod, a guide member for guiding the piston rod in a drug dispense operation, and a cartridge holder for receiving a cartridge, wherein the cartridge holder is detachable from the housing and wherein the guide member comprises an iris type aperture defined by a plurality of threaded pivotable segments. The drug delivery device is configured such that the aperture increases in diameter when the cartridge holder is being detached from the housing, such that the piston rod is free of the threaded engagement with the guide member and can be reset or pushed back to its initial position, and decreases in diameter when the cartridge holder is attached, such that the threads on segments reengage the piston rod.
    Type: Grant
    Filed: May 9, 2016
    Date of Patent: March 24, 2020
    Assignee: Sanofi-Aventis Deutschland GMBH
    Inventors: Stephen David Butler, Mark Philip Horlock
  • Patent number: 10532376
    Abstract: A dispenser with a transfer assembly is arranged to efficiently transfer a stored liquid from a reservoir in a body of the dispenser to an applicator. The transfer assembly includes an adapter, applicator base, piston and a bias member. The adapter is in contact with the body and has a central member with orifices to fluidly couple the applicator base to the reservoir. The applicator base is supported by and extends beyond the adapter. The applicator base forms a cavity for housing the piston and the bias member. A tubular member of the applicator base supports an applicator. The piston includes a passage that conveys the stored liquid from the cavity to the applicator. The bias member keeps the head of the piston against a surface of the central member. When stored liquid is under a pressure that exceeds a bias force, displacement of the piston, opens a seal.
    Type: Grant
    Filed: November 30, 2017
    Date of Patent: January 14, 2020
    Inventor: Shaoxiang Zhang
  • Patent number: 10507319
    Abstract: A multi-use disposable set (MUDS) has at least one syringe having a proximal end and a distal end spaced apart from the proximal end along a longitudinal axis. The MUDS further has a plunger reciprocally movable within a syringe interior between the proximal end and the distal end. A manifold is in fluid communication with the distal end of the at least one syringe. At least one valve is in fluid communication with the syringe interior. The at least one valve is operable between a filling position for filling the syringe interior with fluid and a delivery position for delivering the fluid from the syringe interior. At least one connection port is in fluid communication with the manifold and the syringe interior when the at least one valve is in the delivery position. A multi-fluid delivery system having the medical convector and MUDS is also provided. Various features of the MUDS system are also described.
    Type: Grant
    Filed: January 7, 2016
    Date of Patent: December 17, 2019
    Assignee: BAYER HEALTHCARE LLC
    Inventors: John A. Haury, Michael Swantner, Richard Sokolov, Benjamin James Cullen, Alison Ruth Norcott, Ernesto Hueso Monis, Kamman Law, Mark Silvio Profaca, Patrick Spence, Michael A. Spohn, Justin Angert
  • Patent number: 10383995
    Abstract: A syringe holding structure includes an adapter case (40) for holding a small-diameter syringe, and a syringe holding member having a flange-receiving groove (77) for holing flange portion (46) of the case(40). The syringe holding structure further includes locking mechanism for fixing the flange portion (46) in the groove (77) when the flange portion is inserted into flange-receiving groove and then it is rotated by 90 degrees about its axis.
    Type: Grant
    Filed: March 26, 2010
    Date of Patent: August 20, 2019
    Assignee: NEMOTO KYORINDO CO., LTD.
    Inventors: Shigeru Nemoto, Takashi Saitoh, Shigeru Muramatsu, Hirofumi Uchizono
  • Patent number: 10314969
    Abstract: A method, computer program product, and infusion pump assembly for determining a first rate-of-change force reading that corresponds to the delivery of a first dose of an infusible fluid via an infusion pump assembly. At least a second rate-of-change force reading is determined that corresponds to the delivery of at least a second dose of the infusible fluid via the infusion pump assembly. An average rate-of-change force reading is determined based, at least in part upon the first rate-of-change force reading and the at least a second rate-of-change force reading.
    Type: Grant
    Filed: December 22, 2017
    Date of Patent: June 11, 2019
    Assignee: DEKA PRODUCTS LIMITED PARTNERSHIP
    Inventors: Marc A. Mandro, Robert J. Bryant
  • Patent number: 10266333
    Abstract: A delivery system having a telescoping spring is used to drive a plunger. The telescoping spring includes a nested inner spring that uses the unused volume on the inside of an outer spring. The telescoping spring has a staged release of each spring. The inner spring is connected to a non-anchored end of the outer spring, and rides within a container located within an inner dimension of the outer spring. The spring constant K of each spring can be the same or different. The delivery system can be fully mechanical or implemented as a smart delivery system under electronic control.
    Type: Grant
    Filed: August 26, 2014
    Date of Patent: April 23, 2019
    Assignee: Flextronics AP, LLC
    Inventors: Andrew Peter Nelson, Christopher Desha Breslin
  • Patent number: 10260485
    Abstract: A delivery system having a telescoping spring is used to drive a plunger. The telescoping spring includes a nested inner spring that uses the unused volume on the inside of an outer spring. The telescoping spring has a staged release of each spring. The inner spring is connected to a non-anchored end of the outer spring, and rides within a container located within an inner dimension of the outer spring. The spring constant K of each spring can be the same or different. The delivery system can be fully mechanical or implemented as a smart delivery system under electronic control.
    Type: Grant
    Filed: August 26, 2014
    Date of Patent: April 16, 2019
    Assignee: Flextronics AP, LLC
    Inventors: Andrew Peter Nelson, Christopher Desha Breslin
  • Patent number: 10159786
    Abstract: Ambulatory infusion pumps, durable assemblies, and disposable assemblies, including energy sources, reservoirs, baseplates, and related components therefor, as well as component combinations and related methods.
    Type: Grant
    Filed: September 29, 2015
    Date of Patent: December 25, 2018
    Assignee: perQflo, LLC
    Inventor: Roger E. Smith
  • Patent number: 10094810
    Abstract: A detector to measure composition of a flow of gas from a respiratory circuit. The detector includes a housing and a removable flow path element. The removable flow path element includes an inlet, a sampling chamber, a pump section including a membrane and an actuator interface, and an outlet. A flow path element dock is formed by the housing with the flow path element dock to removably engage the removable flow path element. A radiation source within the housing emits radiation into a sampling chamber of the removable flow path element while the removable flow path element is docked in the flow path element dock. A sensor is housed within the housing. A pump actuator and controller are within the housing to drive the pump to maintain the flow rate of the flow of breathable gas through an enclosed flow path.
    Type: Grant
    Filed: November 2, 2012
    Date of Patent: October 9, 2018
    Assignee: Koninklijke Philips N.V.
    Inventors: Michael Brian Jaffe, David Scampoli
  • Patent number: 9878103
    Abstract: The present invention relates to a delivery device for delivering predetermined amounts of fluid, comprising a body (10), a container (16) filled with fluid to be delivered arranged inside said body, said container comprising an opening for expelling said fluid and a wall (18) movable inside said container (16), a threaded plunger rod (46) arranged movable inside said body (10) in the longitudinal direction and in contact with said movable wall (18), a manually operated push means (14, 60) movable in the longitudinal direction capable of, upon operation, move said plunger rod (46) towards said movable wall (18), thereby expelling fluid, and means for transforming a generally linear movement of said push means (14, 60) to a rotational movement of said plunger rod (46).
    Type: Grant
    Filed: May 9, 2008
    Date of Patent: January 30, 2018
    Assignee: SHL Group AB
    Inventors: Carlos Guillermo, David Desalvo, Lucio Giambattista
  • Patent number: 9795733
    Abstract: A needleless injection system is provided to deliver therapeutic fluids to an internal treatment site in a patient, where the system is pressurized and is capable of compensating for differences in injection media viscosity and mechanical system characteristics. In one aspect, a needleless therapeutic fluid injection system is provided that includes modular, interchangeable components. In particular, the system includes a console that generally includes the electronic and/or hydraulic control components for the system, an injection chamber, and a shaft or catheter tube.
    Type: Grant
    Filed: August 10, 2016
    Date of Patent: October 24, 2017
    Assignee: Astora Women's Health Holdings, LLC
    Inventors: Robert L. Rykhus, Justin M. Crank
  • Patent number: 9623180
    Abstract: This pharmaceutical injection system is provided with a pharmaceutical injection device, a charging device, a detector, and an alarm section. The pharmaceutical injection device has a main body case and a pharmaceutical syringe mounting portion provided within the main body case and to which a pharmaceutical syringe is removably mounted. The pharmaceutical injection device is placed in the charging device, and the charging device has a charger for charging the pharmaceutical injection device. The detector is provided to the pharmaceutical injection device and/or the charging device and detects whether or not the pharmaceutical syringe has been mounted to the pharmaceutical syringe mounting portion. The alarm section is connected to the detector and emits an alarm when it is detected that the pharmaceutical syringe has been mounted onto the pharmaceutical syringe mounting portion.
    Type: Grant
    Filed: September 10, 2012
    Date of Patent: April 18, 2017
    Assignees: PANASONIC HEALTHCARE CO., LTD., JCR PHARMACEUTICALS CO., LTD.
    Inventors: Toshiaki Iio, Yukihiro Takabatake, Seiji Kikuchi, Tsuguhiro Kondoh, Shinsuke Hata, Takashi Hanada
  • Patent number: 9579430
    Abstract: Methods and devices for treatment of damaged tissue are disclosed, including treatment of wounds by employing non-electrically powered, reduced pressure therapy devices. The devices are capable of generating a substantially constant reduced pressure with low tolerance for pressure fluctuations. Also disclosed herein are reduced pressure therapy systems that comprise an alarm system to detect the depleted state of the suction device and provide an alert to the patient and/or practitioner.
    Type: Grant
    Filed: May 1, 2014
    Date of Patent: February 28, 2017
    Assignee: KCI Licensing, Inc.
    Inventors: Dean Hu, Thomas Yorkey, Evan Anderson, Kenneth Wu, Tony Coxum
  • Patent number: 9526826
    Abstract: A device and method for delivering a therapeutic substance to the body of a mammal may include a pump adapter, a pump, and an infusion set having a distal connector and a proximal connector. The proximal connector and the pump adapter have connecting electrical contacts which can be connected to one another in a single action when the proximal connector and pump are being secured to the pump adapter. The distal connector of the infusion set can be connected to a catheter housing, which can be secured to the mammal's skin. The distal connector and the catheter housing have additional connecting electrical contacts which can be connected to one another in a single action when connecting the distal connector to the catheter housing.
    Type: Grant
    Filed: May 16, 2012
    Date of Patent: December 27, 2016
    Assignee: INSULINE MEDICAL LTD.
    Inventors: Ron Nagar, Gabriel Bitton, Elisha Amir
  • Patent number: 9504778
    Abstract: A dialysis machine includes: a source of dialysis solution; a pump configured to pump the dialysis solution; a heater configured to heat the dialysis solution; an electrical input receiving power from a remote power source; and a housing supporting the pump, the heater and the electrical input, the housing including an electrical insulation rated for 240 VAC such that the remote power source can be either 110 or 240 VAC.
    Type: Grant
    Filed: February 6, 2013
    Date of Patent: November 29, 2016
    Assignees: Baxter International Inc., Baxter S.A.
    Inventors: Peter Hopping, Alex Anping Yu
  • Patent number: 9486589
    Abstract: A method and apparatus for detecting and removing air from a syringe containing a volume of liquid and a volume of gas is described. The method includes moving a piston in the syringe to expel gas through an orifice of the syringe, sensing a movement of the piston in the syringe, and determining when the volume of gas is expelled from the syringe based on a change in the sensed movement. Moving the piston may include applying oscillating force to the piston using an electromagnetic actuator, and displacement and speed of the piston during each oscillation may be sensed. Determining when the volume of gas is expelled may be based on a change in the sensed movement of the piston during one or more oscillations of the piston or based on a comparison to a given reference value.
    Type: Grant
    Filed: October 30, 2014
    Date of Patent: November 8, 2016
    Assignee: Massachusetts Institute of Technology
    Inventors: Ian W. Hunter, Ashin P. Modak
  • Patent number: 9463280
    Abstract: A method and apparatus are disclosed for delivery of a drug to a recipient. In some embodiments, the delivery apparatus may unseal a drug containing reservoir. In some embodiments, the delivery rate may be controlled and/or adjustable. Optionally the apparatus may be disposable. Optionally, the apparatus may have a low profile and/or be wearable and/or attachable to the recipient. Optionally, discharge of the drug and/or unsealing of the reservoir may be driven by a plunger moving parallel to the base of the apparatus. Optionally, the apparatus may release a hypodermic needle into the recipient. Optionally, release of the hypodermic needle may be in a direction non-parallel and/or orthogonal to the direction of movement of the plunger. Optionally, prior to release, the hypodermic needle may be preserved in an aseptic state by a needle opening septum sealing a needle opening. Optionally, upon release, the hypodermic needle may pierce the needle opening septum.
    Type: Grant
    Filed: March 26, 2012
    Date of Patent: October 11, 2016
    Assignee: MEDIMOP Medical Projects Ltd.
    Inventor: Oz Cabiri
  • Patent number: 9457140
    Abstract: One embodiment provides a method of using contextual lighting to assist a user of a medical fluid injection system. In this embodiment, the method includes providing a lighted display in proximity to a component of the injection system during setup of the medical fluid injection system. If the user has properly performed a setup function that is associated with the component of the injection system, the method further comprises providing a first visual indication on the lighted display. If the user has not properly performed the setup function that is associated with the component of the injection system, the method further comprises providing a second visual indication on the lighted display.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: October 4, 2016
    Assignee: ACIST Medical Systems, Inc.
    Inventors: Traci Barron, Niels Clausen-Stuck, Mark Fisher, Joseph Graceffa, David J. Hajicek, Martin G. Hieb, Anastasios G. Karahalios, Karen Kensok, Robert Kim, Lawrence Lunzer, Manfred Maiers, Adolfo Menendez, Jr., Khader Mohiuddin, Richard A. Oftedahl, Volker Roos, Jeremiah O'Leary
  • Patent number: 9427523
    Abstract: Some embodiments of an infusion pump system may be configured to detect when at least one component of the pump system is exposed to an impact above a threshold level. In particular embodiments, the infusion pump system can be equipped with a drive system detection system configured to detect when one or more components of the drive system are damaged or inoperable.
    Type: Grant
    Filed: December 10, 2012
    Date of Patent: August 30, 2016
    Assignee: Bigfoot Biomedical, Inc.
    Inventors: Wenkang Qi, David Thrower, Tracy Brewer
  • Patent number: 9415201
    Abstract: A medical device comprising a socket unit for connecting a plug unit and an automated connection of the plug unit to the socket unit via a connecting mechanism. The connecting mechanism has a drive unit that has at least one movable drive body that carries out a translational and/or rotational movement and a position detection mechanism for detecting the linear position and/or the angular position of the drive body. The position detection mechanism includes at least two magnet elements, and at least one sensor element. The linear position and/or angular position of the drive body is determined with an evaluation unit on the basis of the magnetic field generated by the at least two magnet elements and detected by the at least one sensor element.
    Type: Grant
    Filed: January 28, 2014
    Date of Patent: August 16, 2016
    Assignee: Fresenius Medical Care Deutschland GmbH
    Inventor: Stefan Konrad Marterstock
  • Patent number: 9382904
    Abstract: A metering pump unit with a metering chamber (6), a positive-displacement body that adjoins the latter and can be moved by a positive-displacement drive (22), as well as a controller (30) for actuating the positive-displacement drive (22). The controller (30) is designed to actuate the positive-displacement drive (22) at least in a specific operating state in such a way that a stroke, in particular a pressure stroke, of the positive-displacement body is started at a first, lower stroke rate, and the stroke rate is increased to a second, elevated stroke rate as the pressure stroke (36) continues. A method is provided for controlling the positive-displacement drive (22) of such a metering pump unit.
    Type: Grant
    Filed: February 16, 2011
    Date of Patent: July 5, 2016
    Assignee: Grundfos Management a/s
    Inventors: Sergei Gerz, Markus Simon
  • Patent number: 9364614
    Abstract: The invention relates to a drug delivery device, comprising: a case for retaining drug container, the drug container defining a cavity for containing a drug, wherein a stopper is slidably disposed within the container so as to displace the drug through a discharge nozzle on translation in a distal direction, an inner magnet disposable within the drug container for abutting the stopper, at least one outer magnet disposed within the case coaxially with the container and slidable in an axial direction, a trigger arrangement for advancing the outer magnet in a distal direction on actuation, wherein the outer magnet and inner magnet are arranged for magnetically interacting through the drug container wall such the outer magnet advances the inner magnet on trigger actuation.
    Type: Grant
    Filed: June 25, 2013
    Date of Patent: June 14, 2016
    Assignee: SANOFI-AVENTIS DEUTSCHLAND GMBH
    Inventors: Thomas Nagel, Rene Richter, Robert Witt, Richard Guenther, Martin Graefe
  • Patent number: 9352574
    Abstract: A fluid ejection device includes a fluid container having a fluid accommodation portion that has formed therein a fluid outlet and accommodates a fluid. A fluid pressing unit presses the fluid accommodation portion to cause the fluid to flow out of the fluid outlet. Connection piping has an end that is connected to the fluid outlet. A fluid ejection unit has a fluid intake port connected to the other end of the connection piping, and ejects in a pulsed manner the fluid received from the fluid intake port. A pressure detection unit detects pressure of the fluid accommodation portion when the fluid pressing unit presses the fluid accommodation portion, and outputs a level of a detection signal corresponding to the pressure. A press control unit stops the fluid pressing unit from pressing the fluid accommodation portion when the pressure indicated by the detection signal is a predetermined value or higher.
    Type: Grant
    Filed: April 9, 2015
    Date of Patent: May 31, 2016
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Masaki Gomi, Kazuaki Uchida
  • Patent number: 9248317
    Abstract: A device for generating microbubbles in a gas and liquid mixture and injection device, the device comprising: a housing defining a mixing chamber; means for mixing solution contained in the mixing chamber to generate microbubbles in the solution; a needle array removably attached to the housing and in fluid connection with the mixing chamber, the needle array including at least one needle; and a machine readable identifier on the needle array.
    Type: Grant
    Filed: June 29, 2007
    Date of Patent: February 2, 2016
    Assignee: ULTHERA, INC.
    Inventors: Adnan I. Merchant, Mark E. Deem
  • Patent number: 9204890
    Abstract: A fluid ejection device includes a fluid ejection unit that ejects a fluid and an ejection control unit that controls ejection of the fluid. A fluid container accommodates the fluid supplied to the fluid ejection unit. A pressure adjustment unit adjusts an inner pressure of the fluid container such that the inner pressure gets closer to a target pressure than a first threshold value. The ejection control unit has first and second ejection modes. In the first ejection mode, when the inner pressure is closer to the target pressure than a second threshold value separated from the target pressure farther than the first threshold value, the ejection control unit receives a demand for ejection of fluid. In the second ejection mode, even when the inner pressure is not closer to the target pressure than the second threshold value, the ejection control unit receives a demand for ejection of fluid.
    Type: Grant
    Filed: April 9, 2015
    Date of Patent: December 8, 2015
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Tsunemori Asahi, Masaki Gomi
  • Patent number: 9155834
    Abstract: Systems and methods for infusion of fluids using stored potential energy and a variable flow resistor. In one aspect of the present disclosure, there is provided an infusion device that includes a plunger situated within a vessel so as to define a chamber within which a volume of fluid can be accommodated between a downstream surface of the plunger and the vessel. The infusion device further includes an outflow path through which the fluid in the chamber can be dispensed upon displacement of the plunger by a force acting thereon. A variable flow resistor is situated within the outflow path and is configured to allow a substantially constant fluid flow rate from the vessel to be maintained as the force acting on the plunger decreases.
    Type: Grant
    Filed: December 2, 2013
    Date of Patent: October 13, 2015
    Assignee: Pavilion Holdings Group, LLC
    Inventors: Lishan Aklog, Brian Justo deGuzman, Michael Glennon, Paul John Cronin, William Edgar Barker
  • Patent number: 9149622
    Abstract: A fluid transfer system includes a Luer female connector having a main body containing an internal channel for passage of fluids and a collar surrounding at least a part of the end of the main body, and a Luer male connector having a main body with a longitudinal internal opening. The main body of the female connector contains a first threading on at least a part of the external surface of that portion that is surrounded by the collar, located at least in part facing an internal surface of the collar; one of the ends of the main body of the Luer male connector contains a second threading on at least a part of its internal surface delineating the longitudinal internal opening, which engages into and fits in the first threading to ensure joining between the Luer male and female connectors.
    Type: Grant
    Filed: March 20, 2012
    Date of Patent: October 6, 2015
    Assignee: TECHNOFLEX
    Inventors: Frederic Bonnet, Francois Capitaine
  • Patent number: 9095392
    Abstract: A bone cement delivery unit having a rigid support structure with a first portion configured to engage and retain a bone cement reservoir against its casing, a second portion supporting a transmission system and a third portion supporting and guiding a slidable push rod along the injection direction. The delivery system may include a control unit sliding the push rod opposite to the injection direction before stopping the push rod if the quantity of the bone cement pushed out of the reservoir has reached at least a predetermined minimum value, such as to eliminate residual flow. Also, the delivery system may include an adaptor including members electrically connected to the control unit, with the cement reservoir including a sensor for monitoring curing of the bone cement in electrical contact with the members of the adaptor.
    Type: Grant
    Filed: May 3, 2012
    Date of Patent: August 4, 2015
    Inventors: Gamal Baroud, Denis Imbeault, Mohamed Habib
  • Patent number: 9095650
    Abstract: A precision syringe (10) can comprise an annular fluid pathway (16) and annular plunger (12) sealing received within the annular fluid pathway. Various precision pumps (50, 200, 300, 400, 500, 600, 700, 800, 900, 1000, 1100, 1200, 1300, 1400, 1500, 1600, 1700) are configured for discrete displacement of precise volumes of fluid. The precision pumps can operate by reciprocating movement to expand and contract a cavity (204, 304, 404, 504, 604, 704, 804, 904, 1040, 1104, 1204, 1304, 1404, 1504, 1604, 1704). Fluid can be introduced by movement along an axis or rotation about an axis of one or members forming, in whole or in part, the cavity. Associated methods are also disclosed.
    Type: Grant
    Filed: October 6, 2010
    Date of Patent: August 4, 2015
    Assignee: FLEX PARTNERS, INC.
    Inventors: David G. Matsuura, Philip J. Simpson, Helen Anderson
  • Patent number: 9078605
    Abstract: A method for delivering a fluid to an animal with a drug delivery device without causing contamination to the drug delivery device. The drug delivery device used by the method may comprise a fluid subsystem with a switching device, disposable syringes, fluid reservoirs, disposable tubing, and a catheter. In one embodiment, the method allows a user to deliver multiple drugs to an animal without contaminating the valves that control the flow of fluid.
    Type: Grant
    Filed: January 6, 2014
    Date of Patent: July 14, 2015
    Assignee: Bioanalytical Systems, Inc.
    Inventors: Candice B. Kissinger, James M. Hampsch, Joseph A. Bougher
  • Publication number: 20150141957
    Abstract: A mechanical infusion pump device for injecting medication into a patient's IV, includes an IV reservoir and a syringe communicated to the IV reservoir and having a syringe plunger which is moved in a first direction against a mechanical biasing element by engagement with a manually operable, independently movable filling plunger to fill the syringe with fluid medication. The mechanical biasing element is provided for exerting bias on the syringe plunger in a second syringe-discharging direction to dispense medication from the syringe into the patient's IV when the filling plunger is released. Only a calibrated amount of medicine can be discharged to the patent's IV over time as determined by calibration of the biasing element and a metering element located between the syringe and the patient's IV for a given viscosity of the medication.
    Type: Application
    Filed: November 17, 2014
    Publication date: May 21, 2015
    Inventor: Mark Hauswald
  • Publication number: 20150133855
    Abstract: Ambulatory infusion pumps, pump assemblies, cartridges, baseplates, cannulas, insertion tools, and related components as well as combinations thereof and related methods.
    Type: Application
    Filed: December 22, 2014
    Publication date: May 14, 2015
    Inventors: Roger E. Smith, James Causey, Scott R. Gibson
  • Publication number: 20150126926
    Abstract: The present invention relates to an infusion device comprising a housing (10, 12); a compartment inside said housing for positioning a medicament container (78), an infusion needle (124) arranged to said housing, being connectable to said medicament container for delivering a dose of medicament, a piston plunger (72) arranged in said housing capable of acting on said medicament container for delivering a dose of medicament, mechanical drive means capable of acting on said piston plunger for delivering a dose of medicament. The invention is characterised in that said piston plunger comprises a number of distinct segments (82) being inter-connectable to each other for forming an elongated piston plunger.
    Type: Application
    Filed: April 8, 2013
    Publication date: May 7, 2015
    Inventors: Lucio Giambattista, Antonio Bendek
  • Patent number: 9011486
    Abstract: Methods, devices and systems are described for treating venous insufficiency in which the vein is compressed at least partially along a treatment zone. A system can be provided including an injection device, such as a glue gun, that is operably connected to a delivery catheter that can be advanced across a treatment zone in the vein. The delivery catheter can be used to deliver one, two, or more boluses of media (e.g., cyanoacrylate) to occlude the vein along different spaced-apart sections of the treatment zone. External compression can also be applied to the vein by a compression element, such as a hand or multifunctional ultrasound transducer, to occlude portions of the vein along the treatment zone prior to or during the introduction of the boluses of media.
    Type: Grant
    Filed: February 22, 2010
    Date of Patent: April 21, 2015
    Assignee: Covidien LP
    Inventors: Rodney D. Raabe, Jack Chu, Don Crawford, Jan R. Lau, Zhenyu Zuo
  • Publication number: 20150100023
    Abstract: Inline pumps with rear attachable syringes are disclosed. The pump and the syringe are each designed so that the pump syringe system may be easily coupled and decoupled in the field. An end mount block on the pump has a slot shaped to accept a similarly shaped plunger button and plunger rod on the syringe. A user aligns the plunger button of the syringe next to the slot on the mount block of the pump, and slides the plunger button and rod into the inner cavity of the pump. Both the pump and the syringe have threaded couplers which securely couple the pump to the syringe by rotating the couplers with respect to each other.
    Type: Application
    Filed: October 2, 2014
    Publication date: April 9, 2015
    Applicant: FLEX FLUIDICS, LLC
    Inventor: Michael Marshall
  • Publication number: 20150094665
    Abstract: The invention relates to a drive device for linear movement of an infusion syringe piston of an infusion syringe disposed on an infusion pump comprising a drive head unit including a main bearing means for supporting the infusion syringe piston, a fixing means for securing the infusion syringe piston to the main bearing unit as well as means for triggering the fixing means and comprising an advancing means for the drive head unit including a motor-drivable advancing spindle and a multi-part advancing spindle nut having at least one radially movable nut shell, wherein the drive head unit additionally comprises detecting means for detecting the infusion syringe piston ahead of the main bearing means, the detecting means including a multi-threshold sensor unit comprising an at least two-stage upstream detection means for detecting different positions of the infusion syringe piston ahead of the main bearing means.
    Type: Application
    Filed: August 7, 2012
    Publication date: April 2, 2015
    Applicant: B. BRAUN MELSUNGEN AG
    Inventors: Rolf Heitmeiter, Rene Wildner, Hans-Josef Gerlach
  • Patent number: 8968246
    Abstract: Syringe adapter 300 has base member 310 and flange lock member 320. Flange lock member 320 is formed in generally arc shape as a whole so as to receive a cylinder flange inside. Flange lock member 320 has look hook 323 and engagement hook 324 formed thereon. Look hook 323 locks the cylinder flange by rotation of a syringe received in flange lock member 320 about its axis. Engagement hook 324 locks syringe adapter 300 to the apparatus so as not to release lock to the apparatus in the state in which the cylinder flange of the syringe is received in flange lock member 320.
    Type: Grant
    Filed: March 17, 2010
    Date of Patent: March 3, 2015
    Assignee: Nemoto Kyorindo Co., Ltd.
    Inventors: Shigeru Nemoto, Takashi Saitoh, Shigeru Muramatsu, Hirofumi Uchizono
  • Publication number: 20150057616
    Abstract: At least one hand-held injection device for the metered injection of a liquid drug into a person's tissue is disclosed. The exemplary injection device comprises an elongated drug reservoir having a longitudinal reservoir axis (A), an elongated dosing unit having a dosing unit inlet, a dosing unit outlet, and a metering cavity, the dosing unit having a longitudinal dosing unit axis (A?), the elongated drug reservoir being fluidically coupled to the dosing unit inlet. The dosing unit and the drug reservoir are arranged such that the longitudinal dosing unit axis (A?) is in parallel alignment with the reservoir axis (A). The dosing unit structured to allow the flow of the liquid drug from the drug reservoir into the metering cavity via the dosing unit inlet, thus charging the metering cavity, and to subsequently discharge the metering cavity by dosing drug out of the metering cavity into the dosing unit outlet.
    Type: Application
    Filed: February 25, 2014
    Publication date: February 26, 2015
    Applicant: Roche Diagnostics Operations, Inc.
    Inventors: Oliver Shergold, Simon Scheurer
  • Patent number: 8961467
    Abstract: An infusion pump assembly is disclosed. The infusion pump assembly includes a locking tab and a pump barrel inside a pump barrel housing, where the pump barrel accommodates a reservoir assembly. The reservoir assembly includes a reservoir and a plunger rod. The infusion pump assembly also includes a locking disc at a terminus of the pump barrel. The locking disc includes a clearance hole for the plunger rod. The locking disc also includes at least one locking tab notch in close proximity with the locking tab. The locking tab is in moveable engagement with the locking tab notch, and the reservoir moves the locking tab from a locked position to an unlocked position when the plunger rod is inserted through clearance hole. The locking disc rotates upon torque being applied to the reservoir assembly, the locking disc rotating from a non-loaded position to a loaded position with respect to the plunger rod and a drive screw.
    Type: Grant
    Filed: December 17, 2012
    Date of Patent: February 24, 2015
    Assignee: DEKA Products Limited Partnership
    Inventors: Richard J. Lanigan, Kevin L. Grant, Brian D. Tracey
  • Publication number: 20150038906
    Abstract: A portable pump for infusing liquid substances into a body is provided. The pump has a casing and electromechanical members for converting rotary motion of a motor shaft into linear sliding motion of a pusher for causing movement of a plunger slideable within an interchangeable reservoir in which the substance to be infused is contained in a housing. The housing communicates through an opening formed in a casing wall through which the reservoir can be inserted into and removed from the housing and from which an appendix of the reservoir protrudes for the exit of the substance. The housing has a distal portion with mechanical means for reversible engagement of the reservoir end opposite to the appendix and a proximal portion provided with an annular sealing gasket which surrounds the reservoir and forms a seal between the reservoir and casing wall.
    Type: Application
    Filed: July 28, 2014
    Publication date: February 5, 2015
    Inventor: Mario Cane'
  • Patent number: 8945056
    Abstract: An injection device with a puncture function includes, in a single casing, a cylindrical cartridge in which insulin is enclosed, a cartridge holder to which the cartridge is inserted, a needle inserted at a front end of the cartridge, a reciprocation unit for reciprocating the cartridge toward the needle, and an extrusion member for extruding the insulin from a rear end of the cartridge toward the needle, and the motion speed and the motion amount of the reciprocation unit are made variable.
    Type: Grant
    Filed: March 22, 2012
    Date of Patent: February 3, 2015
    Assignee: Panasonic Healthcare Co., Ltd.
    Inventors: Toshiaki Iio, Yoshinori Amano
  • Publication number: 20150032055
    Abstract: A device is described for supplying and metering a fluid for medical purposes, at least comprising one pump for pumping the fluid and at least one element through which the fluid is conveyed. At least one recess is provided in the element, which is tightly covered by a sensor component composed of a pressure sensitive material, wherein the material of the element is harder than that of the sensor component. The apparatus also has a force sensor with which pressure-induced changes of the sensor component in the region of the recess can be measured.
    Type: Application
    Filed: November 6, 2012
    Publication date: January 29, 2015
    Inventor: Dietmar Eberhard
  • Publication number: 20150032054
    Abstract: A piston pump is described for pumping a fluid, comprising at least two cylinders each having a piston which is movable inside the associated cylinder along the longitudinal axis of the cylinder by means of a drive, wherein cylinders are attached to a common pump flange. In each cylinder a chamber is formed having a volume that changes when the associated piston is moved in the cylinder. The pump flange extends along the direction of motion of the pistons, and at least one inlet port and one outlet port are attached to the pump flange, whose longitudinal axes run along the pump flange. A central valve plate is attached to the side of the pump flange facing away from the cylinders that bear on the pump flange and continuously rotates transversely to the pump flange during pumping operation of the piston pump. Respective passages are introduced to the pump flange in the region of each inlet and outlet port, and cylinder openings are introduced to the pump flange in the region of each cylinder.
    Type: Application
    Filed: March 8, 2013
    Publication date: January 29, 2015
    Applicant: B. BRAUN MELSUNGEN AG
    Inventor: Dietmar Eberhard
  • Patent number: 8939935
    Abstract: A drive mechanism having integrated status indication includes a drive housing, a status switch interconnect, a drive biasing member, a piston, and a drug container having a cap, a pierceable seal, a barrel, and a plunger seal, wherein the drive biasing member is configured to bear upon an interface surface of the piston. Drive mechanism may include an incremental status stem having a stem interconnect, wherein the stem resides within the drive housing and the piston, and wherein the stem has an interconnect which engages one or more contacts on the piston to provide incremental feedback. A drug delivery pump with integrated status indication includes a housing and an assembly platform, upon which an activation mechanism, an insertion mechanism, a fluid pathway connection, a power and control system, and the drive mechanism having a drug container may be mounted.
    Type: Grant
    Filed: August 30, 2012
    Date of Patent: January 27, 2015
    Assignee: Unitract Syringe Pty Ltd
    Inventors: Sean M. O'Connor, Kevin Bokelman, Ian B. Hanson, Paul F. Bente, IV
  • Patent number: 8939737
    Abstract: An apparatus for delivering a fluid includes a housing, an inlet in the housing for receiving the fluid, and an outlet in the housing for discharging the fluid. A piston channel is provided within the housing through which the fluid flows from the inlet to the outlet. An actuator is positioned within the housing and is moveable between a retracted position and a forward position, the actuator defining a piston chamber for storing fluid received through the inlet when the actuator is in the retracted position and for driving the fluid stored in the piston chamber toward the outlet when the actuator transitions from the retracted position to the forward position. The actuator includes an armature and a piston coupled to the armature and moveable within the piston channel. The piston channel wall is provided with a groove for conducting fluid from the inlet to the outlet.
    Type: Grant
    Filed: December 9, 2013
    Date of Patent: January 27, 2015
    Assignee: Medtronic MiniMed, Inc.
    Inventor: John Gray
  • Publication number: 20150025499
    Abstract: Apparatus are provided for infusion devices and related systems and operating methods. An exemplary system includes a motor, a sensing arrangement coupled to the motor to provide output indicative of a detected characteristic of the motor when the sensing arrangement is enabled, and a module coupled to the sensing arrangement to periodically enable the sensing arrangement while the motor is idle and detect potential unintended motion of the motor based on the output from the sensing arrangement while periodically enabling the sensing arrangement. In some embodiments, the motor includes a rotor configured such that its rotation provides translational displacement of a plunger in a fluid reservoir, and the sensing arrangement includes one or more sensors configured to provide output indicative of a detected magnetic field of the rotor magnet.
    Type: Application
    Filed: July 19, 2013
    Publication date: January 22, 2015
    Inventors: Adam S. Trock, Hsiao-Yu S. Kow, Nichole R. Mattson, Steve Chow, Alexander S. Campbell