Distributor Formed From Integral Portion Of Flexible Wall Pumping Member Patents (Class 417/479)
  • Patent number: 10923222
    Abstract: The present disclosure relates to a system (100) for administering a pharmaceutical product. The system comprises a container (102) accommodating a pharmaceutical product. The container (102) comprises a wireless communication unit (112) and a memory (116) which stores an administration scheme specifically adapted to the pharmaceutical product accommodated in the container (102). The administration scheme specifies at least one administration-related parameter to be adhered to in administering the pharmaceutical product to a patient. The system further comprises a wireless communication device (104; 206; 208) configured to read the administration scheme from the memory (116) of the container (102) and to perform at least one action based on the administration scheme.
    Type: Grant
    Filed: February 1, 2018
    Date of Patent: February 16, 2021
    Assignee: NOVARTIS AG
    Inventors: Alain Schmidlin, Mario Iobbi, Erich Studer, Andrew Bryant
  • Patent number: 10801444
    Abstract: A carburetor has a carburetor housing wherein an intake channel section is arranged. A fuel opening opens into the intake channel section. The carburetor has a fuel pump with a pump membrane delimiting a pump chamber connected to a fuel inlet. A pressure controller has a control membrane separating a control chamber from a compensation chamber. The control chamber is connected to a fuel outlet leading out from the carburetor. The compensation chamber is connected to a compensation connection. The carburetor housing has a carburetor body, a pump cover and an intermediate part arranged therebetween. The fuel inlet, the fuel outlet and the compensation connection are formed on the intermediate part. The fuel inlet, the fuel outlet and the compensation connection are arranged on the side of the carburetor that faces away from the combustion engine.
    Type: Grant
    Filed: June 12, 2019
    Date of Patent: October 13, 2020
    Assignee: Andreas Stihl AG & Co. LG
    Inventors: Christian Schlecker, Malte Hartmann, Wolfgang Kienzle, Daisuke Suzuki, Michael Grether
  • Patent number: 10502328
    Abstract: A valve includes a lower valve housing, a diaphragm, and an upper valve housing. A top surface of a piezoelectric pump is bonded to a bottom surface of the lower valve housing. A circular hole portion is provided in a central portion of a region of the diaphragm that opposes a projecting portion of the lower valve housing. The diaphragm is bonded to the upper valve housing and the lower valve housing, and a divided interior of a valve housing configures a first lower valve chamber, a second lower valve chamber, a first upper valve chamber, and a second upper valve chamber. A groove is located in a wall portion of the upper valve housing that opposes the diaphragm in the first upper valve chamber.
    Type: Grant
    Filed: January 17, 2019
    Date of Patent: December 10, 2019
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Kenichi Kotani, Takenobu Maeda, Atsuhiko Hirata
  • Patent number: 10463777
    Abstract: This disclosure relates to medical fluid cassettes and related systems and methods. In certain aspects, a medical fluid cassette includes a base having a first region and a second region, a first membrane overlying the first region of the base, and a second membrane overlying the second region of the base. The second membrane is configured to rebound away from the base when a force used to press the second membrane toward the base is released.
    Type: Grant
    Filed: March 31, 2017
    Date of Patent: November 5, 2019
    Assignee: Fresenius Medical Care Holdings, Inc.
    Inventors: Sean Farrell, Joseph Michael Fallon, Kulwinder S. Plahey, Michael James Beiriger
  • Patent number: 10143784
    Abstract: Some embodiments are directed to a system 10 for the application of topical negative pressure therapy to a site 18 on the body of a mammal. Some embodiments of the system 10 comprise a piston 22 and cylinder 24 device 12 having a self-contained power source for the generation of a reduced pressure and for aspirating the site 18. Some embodiments of the system 10 comprise a dressing 14 sealably surrounding the site 18 that can be operably connected to the device 12 by a conduit means 16 to apply the reduced pressure to the site 18.
    Type: Grant
    Filed: December 1, 2016
    Date of Patent: December 4, 2018
    Assignee: T.J. Smith & Nephew Limited
    Inventors: Edward William Walton, George Russell Walton
  • Patent number: 9732744
    Abstract: A detachable ball inflation and deflation device is disposed in a cavity of a ball. The device includes an air inflation unit, a non-return unit, and a reinforcement sleeve. By applying a force to press the air inflation unit repeatedly, the air outside the ball passes the non-return unit to enter the inside of the ball so as to inflate the ball, and the air filled into the ball won't deflate. The device has the function to deflate the ball in a quick way. When the air inflation unit is pulled out of a portion of the ball, the air inside the ball can be deflated quickly, so that the ball can be carried and stored conveniently.
    Type: Grant
    Filed: April 22, 2015
    Date of Patent: August 15, 2017
    Inventor: Sheng-Yi Yeh
  • Patent number: 9714650
    Abstract: Provided is a pumping system that includes a parallel dual chamber pumping mechanism and an attachable disposable cassette. The disposable cassette includes a multi-laminate membrane which facilitates efficient, accurate and uniform delivery of fluids. The multi-laminate membrane is held in intimate contact with the pumping fingers of the pumping mechanism by electrostatic or magnetic attraction, thereby allowing the pump to pull a vacuum without the need for a preloaded elastomeric pumping segment.
    Type: Grant
    Filed: December 13, 2013
    Date of Patent: July 25, 2017
    Inventor: Matthew G. Morris, Jr.
  • Patent number: 9610392
    Abstract: This disclosure relates to medical fluid cassettes and related systems and methods. In certain aspects, a medical fluid cassette includes a base having a first region and a second region, a first membrane overlying the first region of the base, and a second membrane overlying the second region of the base. The second membrane is configured to rebound away from the base when a force used to press the second membrane toward the base is released.
    Type: Grant
    Filed: June 8, 2012
    Date of Patent: April 4, 2017
    Assignee: Fresenius Medical Care Holdings, Inc.
    Inventors: Sean Farrell, Joseph Michael Fallon, Kulwinder S. Plahey, Michael James Beiriger
  • Patent number: 9566385
    Abstract: An apparatus for delivery of fluids to a patient includes an inlet tube and an outlet tube connected to each other at an angular joint. A rotary valve and a piston are fitted to the angular joint forming a chamber. The rotary valve is provided with a priming channel notch and a pumping notch. For priming operation with the fluid delivery apparatus, a user sets the rotary valve to a priming position. During pumping operation, the rotary valve rotates in coordination with the piston to transfer a quantum of fluid from the inlet tube to the outlet tube via the chamber. A second piston is optionally provided on the outlet tube for smoothing out flow rate pulsations.
    Type: Grant
    Filed: April 9, 2014
    Date of Patent: February 14, 2017
    Assignee: CAREFUSION 303, INC.
    Inventor: Brett H. Franks
  • Patent number: 9194390
    Abstract: Methods of and devices for testing medical pumps via tracking induced bubble trajectories within a fluid flow conduit comprising a valve and methods of synchronized corrections of flow data estimates.
    Type: Grant
    Filed: July 23, 2013
    Date of Patent: November 24, 2015
    Assignee: PRONK TECHNOLOGIES, INC.
    Inventors: Karl A. Ruiter, Mirik Hovsepian
  • Patent number: 9181864
    Abstract: A work apparatus has an internal combustion engine for driving a work tool of the work apparatus and a fuel pump which is driven by the engine and delivers fuel from a fuel tank to the engine. The work apparatus has a feed pump which is to be actuated manually by the operator. The fuel pump and the feed pump form one assembly which is arranged outside the fuel tank. The fuel tank has a tank wall which delimits the tank interior. An advantageous arrangement and satisfactory cooling of the assembly are achieved if the assembly is arranged at least partially on the tank wall.
    Type: Grant
    Filed: April 12, 2013
    Date of Patent: November 10, 2015
    Assignee: Andreas Stihl AG & Co. KG
    Inventors: Jonas Lank, Helmut Zimmermann, Klaus-Martin Uhl
  • Patent number: 8974416
    Abstract: A disposable cassette intended for a metering pump for infusion consisting of just two components, namely, a hollow first component (1) forming a pump body, and a second component (5) collaborating with the hollow first component (1) to form a pumping zone (6) and comprising a flexible part (10) characterized in that the second component (5) further comprises a rigid part (9) secured to the flexible part (10) and able to be assembled with the hollow first component (1). The invention also relates to a method for manufacturing such a disposable cassette.
    Type: Grant
    Filed: December 20, 2010
    Date of Patent: March 10, 2015
    Inventor: Jean-Denis Rochat
  • Patent number: 8794937
    Abstract: First and second structures are connected by helical fibers. The orientation between the first and second structures are changed, and by doing so, the positions of the helical fibers are correspondingly changed. The position of change of the helical fibers can be used for a pumping effect, or to change some other fluidic characteristics. One other fluidic characteristics, for example, may use the movement of the helical fibers as a valve.
    Type: Grant
    Filed: February 7, 2011
    Date of Patent: August 5, 2014
    Assignee: California Institute of Technology
    Inventors: Arash Kheradvar, Morteza Gharib, Anna Hickerson
  • Patent number: 8771228
    Abstract: A system and method of accurately pumping a fluid using tubing of variable inner diameter and material is disclosed. The disclosed pump comprises a pumping mechanism configured to compress and release a portion of a flexible tube to cause fluid to flow along the flexible tube, a gauging apparatus, and a vacuum apparatus. The gauging apparatus is configured to determine the inner diameter of the flexible tube, which value is used in calibrating the pumping rate of the pump. The vacuum apparatus is configured to reduce the ambient pressure in a volume surrounding the portion of the flexible tube, thereby causing the flexible tube to fully expand to its original outside diameter when the flexible tube is released by the pumping mechanism.
    Type: Grant
    Filed: January 6, 2011
    Date of Patent: July 8, 2014
    Assignee: CareFusion 303, Inc.
    Inventor: Robert D. Butterfield
  • Patent number: 8678793
    Abstract: The invention provides a finger-type peristaltic pump (2) having a body (4) and a housing (6). The body contains two or more finger-type valves (16) and a processor (22) configured to operate the valves according to a predetermined temporo-spatial pattern. The housing has a passageway (18) configured to receive a conduit. The housing has a first position in which a conduit in the passageway is positioned adjacent to the valve fingers, and a second position in which a conduit in the passageway is not adjacent to the valve fingers. The invention also provides a housing for use in the pump of the invention.
    Type: Grant
    Filed: September 12, 2011
    Date of Patent: March 25, 2014
    Assignee: Q-Core Medical Ltd.
    Inventors: Ori Goldor, Shachar Rotem
  • Publication number: 20140010674
    Abstract: A pump facility for an earmold of a hearing device communicates by way of a channel facility with a variable-volume element of the earmold. A medium can flow through the channel facility to the variable-volume element and away from the variable-volume element. A filling mechanism is embodied for pumping the medium through the channel facility to the variable-volume element. In addition a drainage mechanism is embodied for actively pumping and conveys the medium away from the variable-volume element through the channel facility.
    Type: Application
    Filed: July 8, 2013
    Publication date: January 9, 2014
    Inventor: ANTON GEBERT
  • Patent number: 8499794
    Abstract: The present invention relates to a liquid channel device capable of easily opening the liquid channel from the closed mode, including a base plate in which a liquid channel, through which a liquid containing at least one of a sample and a reagent, flows, and a metering chamber for holding the liquid, are formed to at least one side thereof, the metering chamber has a liquid transport section for transporting the liquid inside the chamber downstream, and this liquid transport section is operated by means of external pressing on a cover plate in the area opposite the metering chamber.
    Type: Grant
    Filed: October 28, 2009
    Date of Patent: August 6, 2013
    Assignee: Fujikura Kasei Co., Ltd.
    Inventors: Shigeru Takahashi, Masaaki Sakurai, Jiro Wakamatsu
  • Publication number: 20130058819
    Abstract: A fluid control device includes a vibrating plate including a first main surface and a second main surface, a driver that is provided on the first main surface of the vibrating plate and vibrates the vibrating plate, and a plate that is provided on the second main surface of the vibrating plate and has a hole provided thereon. At least one of either the vibrating plate or the plate is positioned between the hole and a region of the vibrating plate facing the hole, and includes a projection projecting in a direction intermediate between the hole and the region of the vibrating plate facing the hole.
    Type: Application
    Filed: September 5, 2012
    Publication date: March 7, 2013
    Applicants: OMRON HEALTHCARE CO., LTD., MURATA MANUFACTURING CO., LTD.
    Inventors: Yukiharu KODAMA, Atsuhiko HIRATA, Takenobu MAEDA, Kenta OMORI, Yoshihiko SANO
  • Publication number: 20130058818
    Abstract: A fluid control device includes a vibrating plate unit, a driver, and a flexible plate. The vibrating plate unit includes a vibrating plate with first and second main surfaces, a frame plate surrounding the vibrating plate, and a link portion linking the vibrating plate and the frame plate and elastically supporting the vibrating plate against the frame plate. The driver is on the first main surface of the vibrating plate, and vibrates the vibrating plate. The flexible plate having a hole faces the second main surface of the vibrating plate, being fixed to the frame plate. At least a portion of the vibrating plate and the link portion are thinner than the thickness of the frame plate so that the surface of the portion of the vibrating plate and the link portion, on the side of the flexible plate, can separate from the flexible plate.
    Type: Application
    Filed: September 5, 2012
    Publication date: March 7, 2013
    Applicant: MURATA MANUFACTURING CO., LTD.
    Inventors: Atsuhiko HIRATA, Yoshinori ANDO, Takenobu MAEDA, Yukiharu KODAMA, Kenta OMORI
  • Patent number: 8382447
    Abstract: An infusion pump uses an improved shuttle mechanism to more reliably pump liquids in low volumes for medical and other purposes. The improved shuttle uses linear translation and wider, symmetric jaws to grasp infusate tubing and pump liquid infusate through the tubing. Adjustment of the linear motion allows a user to also adjust a pumping volume of the infusion pump. Other shuttles with wider jaws may also pump infusate using a rotary motion. In addition, more than one shuttle, such as two or three shuttles, may be used to approximate continuous pumping. A series of several smaller linear shuttles with sequential actuation may be used as a linear peristaltic pump for general peristaltic pump applications.
    Type: Grant
    Filed: December 31, 2009
    Date of Patent: February 26, 2013
    Assignees: Baxter International, Inc., Baxter Healthcare S.A.
    Inventors: Zhengyan Wang, Surya Pratap Rai, Ronald H. Spang, Jr., Peter Bojan, David G. Zabel, Joseph Allen Carmichael, Ralph LaBedz
  • Publication number: 20130039789
    Abstract: It comprises driving means (2), with shaft (5), connected to an eccentric (8), at least two membranes that block a similar number of apertures (4) in a box (1), characterised in that it comprises: connecting rod 6, the centre of which houses a single bearing (9) for each eccentric (8), through which referred shaft (5) passes, and at least two actuators (7) that join membranes (3) to connecting rod (6), with said actuators (7) articulated to connecting rod (6).
    Type: Application
    Filed: December 17, 2009
    Publication date: February 14, 2013
    Inventor: Óscar Donado-Muñoz
  • Patent number: 8308457
    Abstract: A medical device includes an interface unit body, which is configured to hold a portion of a flexible infusion tube. A hinge insert is fixed to the interface unit body and is configured to engage a hinge receptacle, which defines a hinge axis, on an infusion pump. A catch insert is fixed to the interface unit body and is configured to lock onto a catch receptacle on the infusion pump upon rotation of the mechanical interface unit about the hinge axis while the hinge insert engages the hinge receptacle, so as to bring the tube into engagement with a peristaltic mechanism of the infusion pump in order to enable the peristaltic mechanism to propel a fluid through the tube.
    Type: Grant
    Filed: May 12, 2009
    Date of Patent: November 13, 2012
    Assignee: Q-Core Medical Ltd.
    Inventors: Shachar Rotem, Ori Goldor
  • Patent number: 8197234
    Abstract: An electromagnetic actuator for a microfluidic pump of the type that causes periodic pinching and releasing against the walls of a fluidic channel, e.g., a tube. At least one permanent magnet is placed against the walls of the fluidic channel, and located in an area with magnetic fields, produced by coils that are radially symmetric to the channel. The permanent magnet is cause to press and release against the wall of the fluid channel to cause a fluid flow through the channel.
    Type: Grant
    Filed: May 24, 2005
    Date of Patent: June 12, 2012
    Assignee: California Institute of Technology
    Inventors: Morteza Gharib, Derek Rinderknecht, Mladen Barbic
  • Patent number: 8100675
    Abstract: A fluid transporting device comprises a tube frame having a tube guide wall for arranging a tube having an elasticity in an arcuate shape, and a rotary pressure mechanism having a plurality of rollers. The rotary pressure mechanism is arranged, when the tube is arranged in the tube frame, on the side opposite to the guide wall side of the tube, such that its center of rotation is aligned with the center of the arc of the tube guide wall. A plurality of push pins are interposed between the tube and the rotary pressure mechanism and are arranged radially of the center of rotation of the rotary pressure mechanism. A switching mechanism moves at least one of the rollers to a position for the push pins to release the tube and a position for the push pins to press the tube.
    Type: Grant
    Filed: February 1, 2006
    Date of Patent: January 24, 2012
    Assignee: Seiko Epson Corporation
    Inventors: Hajime Miyazaki, Kazuo Kawasumi, Kenichi Ushikoshi
  • Publication number: 20110293453
    Abstract: The ball valve device comprises a tubular body in metal material, having a cylindrical wall conformed with cup-shaped internal protrusions to retain a ball shaped valving member, preventing the same valving member to be entrained by a fluid flowing through the valve device. The internal protrusions are performed by radially deforming inwards the cylindrical wall of the tubular body at one or more angularly spaced apart deformable areas. The tubular body provided with the ball retaining protrusions is suitable for any valve device, such as ball check valves pumping units for and/or ducts.
    Type: Application
    Filed: January 25, 2011
    Publication date: December 1, 2011
    Inventors: Marco DE BERNARDI, Vagliviello Pietro
  • Patent number: 8043075
    Abstract: A pump is provided that includes a body made at least partially of an elastomeric material and an inlet port and an outlet port, with each port being coupled to the body. The pump further includes a flow passage formed in the body and extending between the inlet port and the outlet port, with at least a portion of the flow passage being normally closed and with the inlet port being fluidicly uncoupled with the outlet port when the pump is in a free-state condition. An actuating device is coupled to the body and is operable for sequentially deforming the body to create a cavity within the normally closed portion of the flow passage, the cavity being in fluid communication with the inlet port, thereby drawing a packet of fluid from the inlet port into the cavity and propagating the cavity and the packet of fluid contained therein toward the outlet port.
    Type: Grant
    Filed: June 19, 2007
    Date of Patent: October 25, 2011
    Assignee: Smiths Medical ASD, Inc.
    Inventors: Stanley Paul Mack, Joseph Amley, Steven LaCross, Danny Lincoln, Charles R. Patzer, Stephen L. Vick
  • Patent number: 8029253
    Abstract: The invention provides a finger-type peristaltic pump (2) having a body (4) and a housing (6). The body contains two or more finger-type valves (16) and a processor (22) configured to operate the valves according to a predetermined temporo-spatial pattern. The housing has a passageway (18) configured to receive a conduit. The housing has a first position in which a conduit in the passageway is positioned adjacent to the valve fingers, and a second position in which a conduit in the passageway is not adjacent to the valve fingers. The invention also provides a housing for use in the pump of the invention.
    Type: Grant
    Filed: November 24, 2005
    Date of Patent: October 4, 2011
    Assignee: Q-Core Medical Ltd.
    Inventors: Shachar Rotem, Uri Goldor
  • Patent number: 7985057
    Abstract: The invention relates to a micropump for peristaltic pumping of a liquid medium and to a device which contains a peristaltic micropump and which is for metered administration of a liquid drug.
    Type: Grant
    Filed: March 14, 2007
    Date of Patent: July 26, 2011
    Assignee: Roche Diagnostics Operations, Inc.
    Inventor: Hans-Peter Haar
  • Publication number: 20110116956
    Abstract: A hand operable pump device for pumping fluids includes a hollow body and an oval piston. The hollow body includes an inlet port and an outlet port. The inlet port is provided with a one-way valve permitting fluid flow into the pump. The outlet port is provided with a one-way valve permitting fluid flow out of the pump. The oval piston is designed to be pressed inwardly from an initial position by the hand, decreasing the volume of an oval chamber with a corresponding oval cross-section. The chamber is located within the pump and is fluidically connected with the inlet and outlet ports. The oval piston is further designed to return to the initial position when released, increasing the volume of the chamber.
    Type: Application
    Filed: November 16, 2009
    Publication date: May 19, 2011
    Inventor: Yoram GILL
  • Patent number: 7828176
    Abstract: A hand operated fluid dispensers comprised of a sealed flexible reservoir chamber containing a fluid, a flexible pump chamber encased by and drawing fluid from the reservoir, and a pump cycled by external pressure applied through a reservoir wall. This class of simple, inexpensive, disposable dispensers is particularly useful in packaging cosmetics, foodstuffs, and healthcare products. As pocketable dispensers they are popular for dispensing small amounts of stored viscous liquids easily damaged when exposure to the atmosphere, a condition where sealed reservoirs coupled with airless pumps working together successfully prevent such product contamination and deterioration. A method of improved healthcare employing such pump dispensers containing a hand sanitizing fluid is also discussed.
    Type: Grant
    Filed: May 15, 2006
    Date of Patent: November 9, 2010
    Inventor: William A. Harper
  • Patent number: 7806301
    Abstract: A pump for dispensing soap from a container in a dispenser, the pump including a base, a flexible dome attached to the base defining a chamber therebetween, an inlet and an outlet formed in the base and opening into the chamber, the inlet being in fluid communication with the container, and wherein the dome has a fold line that facilitates collapsing of the dome. The dome may include an inwardly extending flange that selectively closes the inlet.
    Type: Grant
    Filed: May 19, 2004
    Date of Patent: October 5, 2010
    Inventors: Nick E Ciavarella, Aaron R Reynolds, Daniel M Willis, Robert H Yeager
  • Publication number: 20100241076
    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: September 21, 2009
    Publication date: September 23, 2010
    Applicant: ABBOTT DIABETES CARE, INC.
    Inventors: Benjamin M. Rush, Christopher V. Reggiardo
  • Patent number: 7743948
    Abstract: The present invention relates to a dispensing device for dispensing a liquid or viscous substance, preferably foodstuff. At least one pump means (4) is provided to perform pump motions for sucking said substance (2) into the dispensing device (1) and dispense or discharge it therefrom. The pump means (4) is provided to divide inner parts of the dispensing device (1) into at least one suction chamber (30) and at least one dispensing or discharge chamber (31) which are interconnected through at least one transfer chamber (32). The pump means (4) is during a first pump motion in one direction (A) provided to suck substance (2) into the suction chamber (30) and simultaneously dispense or discharge substance (2) from the discharge chamber (31). The pump means (4) is during a second pump motion in the opposite direction (D) relative to the first pump motion provided to feed substance (2) from the suction chamber (30) and through the transfer chamber (32) into the discharge chamber (31).
    Type: Grant
    Filed: December 20, 2004
    Date of Patent: June 29, 2010
    Inventor: Sten Drennow
  • Patent number: 7717610
    Abstract: A vessel (10) and a method for agitating a liquid (50) in a main cavity (16) of t he vessel (10), are provided. The vessel (10) includes a dividing member (40), extending deformable pump cavity (20). To agitate the liquid (50), a user presses a flexing wall (26) of the pump cavity (20), in pumping cycles, to discharge liquid from the pump cavity (20) through nozzles (42,44) into the main cavity (16). The dividing member (40) has a sloping upper surface, which causes additives (38) to collect in the region of the nozzles (44), to be agitated more effectively.
    Type: Grant
    Filed: March 15, 2004
    Date of Patent: May 18, 2010
    Inventor: Creighton Reiner Schlebach
  • Patent number: 7695255
    Abstract: A pump for generating fluid flow in an elastic tubular conduit. The pump comprises a plurality of electrically operated valves, each valve being positionable adjacent to the conduit. Each valve has a valve head configured to alternate from a first position in which the lumen of the conduit adjacent to the valve head is unobstructed and a second position in which the lumen of the conduit adjacent to the valve head is obstructed. The pump also comprises a driver configured to control the positions of the valve heads, so as to execute a predetermined temporo-spatial array of valve head positions.
    Type: Grant
    Filed: November 12, 2003
    Date of Patent: April 13, 2010
    Assignee: Q-Core Medical Ltd
    Inventors: Zvi Ben-Shalom, Ori Goldor, Roni Shabat, Shaul Ozeri
  • Publication number: 20090297372
    Abstract: A valveless MEMS micropump capable of improved efficiency and performance is disclosed. The micropump includes two adjoining chambers separated by a piezoelectric actuated pump membrane. The micropump moves fluid through the chambers through diffuser elements characterized by differential directional resistance to fluid flow by piezoelectric actuation of the pump membrane.
    Type: Application
    Filed: September 11, 2006
    Publication date: December 3, 2009
    Applicant: BOARD OF TRUSTEES OF THE UNIVERSITY OF ILLINOIS
    Inventors: Farid Amirouche, Enrico Zordan
  • Patent number: 7566209
    Abstract: A peristaltic pump assembly for moving a working fluid. The pump assembly includes an expandable fluid that changes in volume due to the presence of a magnetic and/or electric field. The pump assembly also includes a flexible member interposed between the working fluid and the expandable fluid. The pump assembly further includes a field generator operable to cause the expandable fluid to change in volume by applying the magnetic and/or electric field to the expandable fluid. This, in turn, moves the flexible member to increase the pressure of the working fluid to thereby move the working fluid.
    Type: Grant
    Filed: March 15, 2006
    Date of Patent: July 28, 2009
    Assignee: Chrysler LLC
    Inventors: Judson B. Estes, Scott Van Brocklin, Brian Komarisky
  • Patent number: 7544048
    Abstract: A vibratory pumping machine including a pumping chamber disposed within a housing for the machine having an inlet tube that is insertable into a container having a liquid therein to withdraw the liquid from the container upon actuation of the pumping mechanism also located within the housing. The chamber includes an oscillating rod that engages a resilient outlet member to form a vacuum within the chamber which draws the liquid upwardly through the tube into the chamber for dispensing through the outlet member. A mechanism including the pumping chamber can be utilized to withdraw liquids from within container of various shapes and sizes, as well as to introduce other fluids, such as gases, into containers containing such liquids.
    Type: Grant
    Filed: September 4, 2003
    Date of Patent: June 9, 2009
    Inventors: Grigori Lishanski, Oleg Lishanski
  • Publication number: 20090087328
    Abstract: A pulse generator has a rigid body with a resilient flow conduit passing therethrough. Pressure is periodically selectively applied to the interior of the body which compresses the flow conduit and induces a pressure pulse in the fluid contained therein. The pulse generator may be used as a stand alone pump or in concert with a continuous flow pump to provide a pulsatile output flow having customized waveform characteristics. The pulse generator may be used with medical equipment such as a heart-lung bypass machine or a dialysis machine.
    Type: Application
    Filed: November 28, 2006
    Publication date: April 2, 2009
    Inventors: Donald G. Faulkner, Bruce R. Trefz, Franz W. Kellar
  • Publication number: 20080103429
    Abstract: A fluid pumping mechanism in one embodiment includes a fluid reservoir, and a monolayer film extending over a portion of the fluid reservoir, wherein fluid is moved through the reservoir by movement of the film from a first position to a second position, the film including a first polyolefin. In another embodiment the fluid pumping mechanism includes a fluid reservoir; and a multiple layer film extending over a portion of the fluid reservoir, wherein fluid is moved through the reservoir by movement of the film from a first position to a second position, the film including an inner layer and an outer layer, the inner layer including an ethylene containing polymer.
    Type: Application
    Filed: July 2, 2007
    Publication date: May 1, 2008
    Applicants: BAXTER INTERNATIONAL INC., BAXTER HEALTHCARE S.A.
    Inventors: Sherwin Shang, Tahua Yang, John Booras
  • Patent number: 7360999
    Abstract: A medical pump, for use with a cassette having a pumping chamber, includes a pumping element with a piston slider assembly which intermittently pressurizes the pumping chamber during a pumping cycle and has a piston head connected to a main body with a single pressure sensor positioned therebetween. A camshaft is associated with the pumping element, an inlet control element, and an outlet control element for closing the pumping chamber to flow when the pumping chamber is pressurized. A processing unit receives pressure and position data from the pressure sensor and a position sensor associated with the pumping element, and processes this data to determine the operating condition of the pump. The operating conditions determined include: blocked fluid flow, no fluid in the line, no cassette associated with the pump, proper pump priming, or proper valve sealing.
    Type: Grant
    Filed: July 22, 2003
    Date of Patent: April 22, 2008
    Assignee: Abbott Laboratories
    Inventors: Steven R. Nelson, Chad E. Bouton, Dale M. Radcliff, Roger W. Smith, Clark E. Fortney
  • Patent number: 7261525
    Abstract: A manually operated pump having a pump assembly and a check valve. The pump assembly includes a dome with a fluid inlet. A support plate is sealed to the dome to define a fluid chamber. The support plate includes a fluid outlet. A foam material is positioned in the fluid chamber, the foam material expanding the dome to a rest state upon release of external pressure on the dome. The check valve has a valve inlet in fluid communication with the fluid outlet of the support plate. The check valve is positioned outside of the fluid chamber. The check valve has at least one exhaust channel to provide one way fluid flow from the fluid chamber through the exhaust channel.
    Type: Grant
    Filed: August 30, 2005
    Date of Patent: August 28, 2007
    Assignee: Dielectrics Industries, Inc.
    Inventor: Robert W. Pekar
  • Patent number: 7222803
    Abstract: A hand operated flexible bulb for use with a liquid dipensing apparatus 5, the bulb comprises an open ended neck 2 which is securable in an air tight manner to a liquid dispensing apparatus. The flexible bulb is provided with an air inlet 6 separate from the open ended neck, the air inlet having a valve 7 associated therewith such that on application of hand pressure to the bulb, the valve closes to force air through the open ended neck and on release of pressure, the valve opens drawing air into the inlet.
    Type: Grant
    Filed: December 6, 2000
    Date of Patent: May 29, 2007
    Assignee: Jakks Pacific, Inc.
    Inventor: Terence William Bolton
  • Patent number: 7059840
    Abstract: An apparatus for pumping fluid through tubing comprising a stop platen is disclosed. The stop platen is operatively arranged to depress a wall of the tubing along a section of a longitudinal axis of the tubing. The stop platen is narrower than the tubing along a transverse axis of the tubing. The invention further comprises a cabinet containing the stop platen, a door rotatably fixed to the cabinet, and locking means for preventing rotation of the door. The locking means are operatively arranged to be unlocked by a tubing occluder.
    Type: Grant
    Filed: April 5, 2002
    Date of Patent: June 13, 2006
    Assignee: SIGMA International
    Inventors: Kenneth J. Corwin, Roger L. Hungerford, Yuriy Shvetsov, Michael H. Wollowitz
  • Patent number: 7004727
    Abstract: Blood component processing systems and methods are coupled to a blood component processing device. The systems and methods include a fluid circuit that comprises at least one fluid pressure actuated pump station, at least one fluid flow path communicating with the pump station, and at least one valve in the fluid flow path. A control module is sized and configured to interact with the fluid circuit. The control module includes an actuator to selectively apply fluid pressure to the pump station in concert with operation of the valve to pump fluid through the fluid flow path in response to a control program. A controller coupled to the control module includes the control program and a fluid circuit integrity test function.
    Type: Grant
    Filed: November 5, 2004
    Date of Patent: February 28, 2006
    Assignee: Baxter International Inc.
    Inventors: Tiffany Kline, Peter Bedard, Carson Ingo, Christopher Boniquit, Robert Scheidt, Abinash Nayak
  • Patent number: 6942469
    Abstract: Servo controlled solenoids provide actuation of a pump piston and valves, and electronic LC resonance measurements to determine liquid volume and gas bubble volume. Third order nonlinear servo control is split into nested control loops: a fast nonlinear first-order inner loop causing flux to track a target by varying a voltage output, and a slower almost linear second-order outer loop causing magnetic gap to track a target by controlling the flux target or the inner loop. The inner loop uses efficient switching regulation, preferably based on controlled feedback instabilities, to control voltage output. The outer loop achieves damping and accurate convergence using proportional, time-integral, and time-derivative gain terms. The time-integral feedback may be based on measured and target solenoid drive currents, adjusting the magnetic gap for force balance at the target current.
    Type: Grant
    Filed: January 30, 2001
    Date of Patent: September 13, 2005
    Assignee: Crystal Investments, Inc.
    Inventors: Joseph B. Seale, Gary E. Bergstrom
  • Patent number: 6905314
    Abstract: A pump has a flexible liner which is expanded and contracted by application of positive and negative fluid pressure for receiving and discharging fluent material. The liner is received in a rigid shell which defines the maximum volume received. In discharging fluent material, a vacuum is applied to one side of the liner, while applying pressure to the other side so the liner is collapsed against the rigid shell. The liner is arranged so as to be the only part of the pump which contacts the fluent material, and is replaceable to effect rapid and easy cleaning of the pump. The liner has multiple pump cells which can expand and contract for moving fluent material through the pump cell. The pump cells can be sized and arranged so that by selection of particular pump cells which receive the fluent material, precise volumes can be metered by the pump.
    Type: Grant
    Filed: October 16, 2001
    Date of Patent: June 14, 2005
    Assignee: Baxter International Inc.
    Inventor: Hal C. Danby
  • Patent number: 6797063
    Abstract: Described are dispensing apparatuses and methods of their use, the dispensing apparatuses having one or more process chamber inside of a control chamber, and the volume of the process chamber increases or decreases by adding or removing control fluid from the control chamber, with proper valving, to cause fluid to flow into and out of the process chamber, for use in dispensing fluid, especially in precise amounts.
    Type: Grant
    Filed: September 26, 2002
    Date of Patent: September 28, 2004
    Assignee: FSI International, Inc.
    Inventor: Kader Mekias
  • Patent number: 6729856
    Abstract: An apparatus for electrostatically pumping fluids without passing the fluids through the electric field of the pump is contemplated. Electrostatic forces are preferably used to move the diaphragms in one direction, while elastic and/or other restorative forces are used to move the diaphragms back to their original un-activated positions. In some embodiments, this may allow fluid to be pumped without passing the fluid between actuating electrodes. This may be particularly useful when the fluids have dielectric, conductive, polar or other qualities that may affect traditional electrostatic pump performance. Pumps having various elementary cells are contemplated, including two-celled pumps disposed within a single chamber and pumps having greater numbers of cells wherein each cell is disposed within a different chamber.
    Type: Grant
    Filed: October 9, 2001
    Date of Patent: May 4, 2004
    Assignee: Honeywell International Inc.
    Inventors: Eugen I. Cabuz, Cleopatra Cabuz
  • Patent number: 6689503
    Abstract: This invention is related to a fuel cell, comprising: a fuel cell stack; two end plates provided at the longitudinal, opposing ends of the cell stack; a plurality of tie rods, passing through a peripheral region of each end plate for positioning the cell stack between the two end plates; and at least one uniform compression device, positioned between the cell stack and one of the end plates, wherein the uniform compression device includes at least one pressure bellows that constantly applies a consistent and distributed operative contact pressure towards the cell stack for enhancing the conductivity and operative efficiency of the fuel cell.
    Type: Grant
    Filed: August 24, 2001
    Date of Patent: February 10, 2004
    Assignee: Asia Pacific Fuel Cell Technologies, Ltd.
    Inventor: Jefferson Y S Yang