Elongated Flexible Chamber Wall Progressively Deformed Patents (Class 417/474)
  • Patent number: 10926026
    Abstract: A peristaltic pump (200) is proposed which comprises a first housing component (210) and a second loading component (230), said second loading component being at least partially contained within said first housing component and being axially movable with respect to said first housing component inside thereto. The second loading component further comprises at least a couple of rollers (235) which engage and squeeze a delivery tube (146) for delivering a fluid passing there through when, in operation, the second loading component is fully snapped into said first housing component. Moreover the second loading component comprises a guiding path (240) for guiding the delivery tube around said at least a couple of rollers towards an exit port (244) which is provided at a distal end surface of the second loading component. The present invention also relates to a patient set and to an injection system comprising said peristaltic pump, as well as to a method of operating said injection system.
    Type: Grant
    Filed: November 26, 2018
    Date of Patent: February 23, 2021
    Assignee: ACIST MEDICAL SYSTEMS, INC.
    Inventors: Pierre Yves Chassot, Règis Chrétien
  • Patent number: 10915085
    Abstract: Embodiments of the invention include methods and structures for controlling developer critical dimension (DCD) variations across a wafer surface. Aspects of the invention include an apparatus having developer tubing and an internal cam. The internal cam is coupled to a fixed axis. A flexible divider is positioned between the developer tubing and the internal cam. The flexible divider is coupled to the internal cam such that rotation of the internal cam about the fixed axis is operable to change an inner diameter of the developer tubing.
    Type: Grant
    Filed: October 20, 2017
    Date of Patent: February 9, 2021
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Richard C. Johnson, Hao Tang, Yongan Xu
  • Patent number: 10900479
    Abstract: An air-bag type inflating device includes an elastic bag body and a sealing member; the sealing member has a first membrane, a second membrane and a third membrane, the second membrane is connected to the first membrane, the third membrane is stacked and arranged at a connecting location of the first membrane and the second membrane and disposed at an inner side of the first membrane; a unidirectional nozzle passage is formed between the first membrane and the third membrane, and capable of being optionally operated for opening or closing the first chamber and the second chamber. Accordingly, an opening/closing status of the unidirectional nozzle passage can be stably and precisely controlled after the bag body is pressed.
    Type: Grant
    Filed: February 4, 2019
    Date of Patent: January 26, 2021
    Inventor: Wen-Chi Hsu
  • Patent number: 10857288
    Abstract: A one-time use plastic disposable lockbox enclosing an infusion system including the infusion device, method of delivery such as tubing, and source reservoir such as a fluid bag or syringe is provided. The lockbox includes first and second thermoplastic shells joinable along a separation plane to define a housing. The housing carries an IV bag volume abutting a periphery of a filled standard IV bag to restrain movement of that IV bag along the separation plane and a pump volume abutting a periphery of an IV pump to restrain movement of that IV pump along the separation plane. A channel extends between the pump volume and an exterior of the housing to allow egress of a standard IV line from the housing.
    Type: Grant
    Filed: September 19, 2018
    Date of Patent: December 8, 2020
    Assignee: Infutronix LLC
    Inventor: Frederick Lee
  • Patent number: 10808689
    Abstract: A pumping finger subassembly for a peristaltic infusion pump has a housing, a pinch member, a block member, and at least one biasing spring. The housing includes a transverse slot, a first side wall, and an open second side through which the pinch member and biasing spring(s) are inserted into the transverse slot. The block member includes a foot portion and a side wall portion. The foot portion is insertable into the housing through the open second side such that the block member is constrained against movement relative to the housing and the side wall portion of the block member opposes the first side wall of the housing, whereby the pinch member is supported on both lateral sides to prevent tilting of the pinch member.
    Type: Grant
    Filed: December 17, 2018
    Date of Patent: October 20, 2020
    Assignee: Curlin Medical Inc.
    Inventor: Azur Azapagic
  • Patent number: 10774823
    Abstract: A disposable cartridge (20) for a peristaltic micro pump is disclosed. The cartridge comprises a housing (21) with an inlet connector (25) and an outlet connector (26). A fluid channel (23) extends in the housing (21) between the inlet and the outlet with a channel section (22) of the fluid channel (23) provided by a flexible tube (24). One or more openings are provided adjacent to the channel section (22) in the housing (21) allowing one or more pump engaging elements of a pump drive to engage the flexible tube (24), compressing the flexible tube (24) to pump fluid through the fluid channel (23). Sealing elements (31, 32) with double flange extensions (31a, 31b) having a first inner flange (31a, 32a) and a second outer flange (31b, 32b) are provided to seal at the connectors (25, 26) and fix the tube (24) in the housing (21).
    Type: Grant
    Filed: April 13, 2017
    Date of Patent: September 15, 2020
    Assignee: Technische Universitat Berlin
    Inventors: Andreas Loth, Ralf Förster
  • Patent number: 10648564
    Abstract: An infusion pump for delivering an intravenous (“IV”) fluid includes a housing comprising an actuation area that engages a portion of an IV tube. The actuation area includes a first end that receives the IV tube from a fluid container and a second end that provides the IV tube to a patient. The housing also includes a seal section located along a perimeter of at least a portion of the actuation area. The seal section includes a gasket rib positioned along the seal section and a tube channel configured to cradle the IV tube. The example infusion pump also includes a door connected to the housing and configured to engage the gasket rib to enclose the actuation area of the housing.
    Type: Grant
    Filed: December 27, 2017
    Date of Patent: May 12, 2020
    Assignees: Baxter International Inc., Baxter Healthcare SA
    Inventors: Jiri Slaby, Mohammad Ali Jamnia, Steve Pippin
  • Patent number: 10632264
    Abstract: A transfusion apparatus according to an embodiment includes a finger-type pump mechanism, the finger-type pump mechanism including a plurality of fingers, the plurality of fingers and a holding member sandwiching a passage composed of a flexible material, the holding member being arranged to face the plurality of fingers in an opposed manner, the finger-type pump mechanism depressing and elastically deforming a side face of the passage by a peristaltic motion reciprocating the plurality of fingers to send a liquid with which the passage is filled, the transfusion apparatus comprising: a pressure sensor provided to at least one of the plurality of fingers or the holding member; and a determination unit that determines presence or absence of bubbles in the passage based on pressure detected by the pressure sensor when a finger is depressing the passage.
    Type: Grant
    Filed: July 25, 2016
    Date of Patent: April 28, 2020
    Assignee: MINEBEA MITSUMI INC.
    Inventor: Toshio Toshima
  • Patent number: 10588769
    Abstract: A novel caloric bypass device that is inserted through the oral cavity and into the digestive tract of a human is disclosed. The device is deliverable as either a unitary or modular structure that preferentially directs a significant volume of the high calorie fluidic components of the chyme through the digestive tract, preventing exposure to the absorptive tissues of the digestive tract and, in some forms, stimulates negative feedback to the patient when simple sugars and carbohydrates are consumed. Also disclosed is a novel method of reducing or restricting caloric intake using this device to prevent or minimize contact with the absorptive tissues of the digestive tract.
    Type: Grant
    Filed: October 12, 2016
    Date of Patent: March 17, 2020
    Assignee: Ethicon, Inc.
    Inventors: Robert Anthony Rousseau, Kevin Shaun Weadock
  • Patent number: 10549084
    Abstract: A medical connector for providing a sterile connection between a multi-use portion and a single-use portion of a fluid delivery system is provided. The medical connector includes a fluid inlet port configured for removable engagement with a connection port of a multi-use disposable set (MUDS) to establish a fluid connection therewith and a waste outlet port configured for removable engagement with a waste inlet port of the MUDS to establish a fluid connection therewith. A patient fluid line is connected, at a first end, to the fluid inlet port and connected, at a second end, to the waste outlet port. Fluid flow through the patient fluid line is unidirectional from the first end to the second end. The patient fluid line is configured for being disconnected from the waste outlet port for delivering fluid to a patient. A multi-fluid delivery system having the medical connector and MUDS is also provided.
    Type: Grant
    Filed: January 9, 2015
    Date of Patent: February 4, 2020
    Assignee: BAYER HEALTHCARE LLC
    Inventors: Richard Sokolov, Benjamin James Cullen, Alison Ruth Norcott, Ernesto Hueso Monis, Kamman Law, Mark Silvio Profaca, John A. Haury, Michael Swantner
  • Patent number: 10507128
    Abstract: A reduced absorption device may include a proximal anchor and a distal sleeve including a frame and a membrane. The membrane may include a plurality of porous regions, and each porous region may be configured to align with a corresponding region of an intestine configured to absorb nutrients.
    Type: Grant
    Filed: November 16, 2016
    Date of Patent: December 17, 2019
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: John A. Hingston, Gene T. Storbeck, Jeri Ann Hiller, Kathleen Corcoran, Kali L. Manning, Selina M. Merkling, Gary Dean Roye, Sivamainthan Vithiananthan, Beth Ryder
  • Patent number: 10407657
    Abstract: The purpose of the present invention is to provide a valve mechanism which features a simple structure adapted to collectively control the supply of gas or culture medium to a plurality of cultivation containers for simultaneous cultivation and to enhance the reliability of the valve mechanism. The valve mechanism of the invention is a valve mechanism for opening and closing passages for liquid or gas. The valve mechanism includes: clip members adapted to close a plurality of tube passages, respectively; a multiple cam member for opening the clip members in sequence by making contact with the clip members; and a rotational mechanism for rotating the multiple cam member. The clip member includes: a spring for closing a clip thereof; and a clip contact portion for a cam contact portion of the multiple cam member to make contact therewith.
    Type: Grant
    Filed: September 5, 2012
    Date of Patent: September 10, 2019
    Assignee: Hitachi, Ltd.
    Inventors: Guangbin Zhou, Takayuki Nozaki, Shizu Matsuoka, Ryota Nakajima, Masaharu Kiyama, Kenichi Minami
  • Patent number: 10369035
    Abstract: Method and apparatus for treatment of morbid obesity by placement of a series of flow reduction elements in the small intestine to induce satiety are disclosed. The flow reduction elements restrict the movement of partially digested food and reduce the flow rate through the small intestine which causes the emptying of the stomach and the duodenum to occur slower. The flow reduction elements are attached to an elongated tube and are constructed from various shapes and configurations. The flow reduction elements may be inflated with fluid or may be constructed from self-expandable materials. The device is anchored in the antrum of the stomach with an anchoring member. The transoral gastric device can be inserted with a delivery catheter through the working lumen of an endoscope or alongside an endoscope and may be removed with the aid of an endoscope if desired.
    Type: Grant
    Filed: August 2, 2016
    Date of Patent: August 6, 2019
    Assignee: Endosphere, Inc.
    Inventor: Kenneth F. Binmoeller
  • Patent number: 10350099
    Abstract: An endoluminal sleeve device for internally lining a section of the GI tract, comprises a sleeve configured for deployment inside a duodenum, the sleeve having walls of a flexible material defining a sleeve lumen, a proximal end defining a proximal lumen opening, and a distal end defining a distal lumen opening, an anchoring component having a slender transport configuration and a bulky deployed configuration, wherein the anchoring component is locatable at a distance from the proximal sleeve end and connected thereto by an elongated tether.
    Type: Grant
    Filed: October 3, 2012
    Date of Patent: July 16, 2019
    Assignee: Ethicon Endo-Surgery, Inc.
    Inventors: Thomas E. Albrecht, Mark S. Zeiner, Jason L Harris, Michael J. Stokes, Mark S. Ortiz, Kevin D. Felder, Michele D'Arcangelo, James W. Voegele
  • Patent number: 10232111
    Abstract: Pump includes a motor and a cam shaft coupled to the motor for rotation about a longitudinal axis of the cam shaft. The cam shaft has at least one radially-outward projection defining a helical engagement portion disposed along a length of the cam shaft. A plurality of finger plates are disposed along the length of the cam shaft, each finger plate mounted for movement in a transverse direction relative to the longitudinal axis of the cam shaft. Each finger plate has an aperture defined therein to receive the cam shaft therethrough. Each aperture has a substantially straight edge region and an opposing edge region. Engagement of the helical engagement portion with the substantially flat edge region during rotation of the cam shaft urges the finger plate transversely toward an extended position.
    Type: Grant
    Filed: December 30, 2014
    Date of Patent: March 19, 2019
    Assignee: ABBVIE INC.
    Inventors: Phil D. Anderson, Gurjinder Dhami, Scott Smieja
  • Patent number: 10232131
    Abstract: An apparatus to dispense fluids may include a reusable portion and a disposable portion. The disposable portion may include components that come into contact with the fluid, while the reusable portion may include only components that do not come into contact with the fluid. The apparatus includes an acoustic volume sensor that acoustically excites a fixed-volume chamber and a measurement chamber with a loudspeaker and measures the acoustic response with microphones acoustically coupled to the fixed volume chamber and the measurement chamber. The loudspeaker and sensing microphones are connected to the measurement chamber by separate ports. A detachable dispensing chamber is coupled to the acoustic volume sensor. The volume of the fluid dispensed is determined by a processor based on the acoustic response of the microphones to acoustic excitement by the loudspeaker.
    Type: Grant
    Filed: October 1, 2015
    Date of Patent: March 19, 2019
    Assignee: DEKA Products Limited Partnership
    Inventors: Dean Kamen, Larry B. Gray, Russell H. Beavis, John M. Kerwin, Derek G. Kane
  • Patent number: 10172986
    Abstract: A device for extracorporeal blood treatment, in particular a dialysis machine, including a peristaltic pump for conveying fluid from a low-pressure side to a high-pressure side, the peristaltic pump comprising a rotor which is rotatable around a rotor axis and a support area which is formed around the rotor axis in an arcuate manner, with an elastically deformable fluid line being able to be positioned between the rotor and the support area and being deformed between the rotor and the support area with rotation of the rotor while forming a cross-sectional constriction, so that upon rotation of the rotor with respect to the support area a fluid in the fluid line is conveyed from the low-pressure side to the high-pressure side. The device includes a machine housing part realized as a formed sheet metal part, wherein the support area is formed in the machine housing part by plastic deformation.
    Type: Grant
    Filed: February 18, 2016
    Date of Patent: January 8, 2019
    Assignee: B. BRAUN AVITUM AG
    Inventors: Oliver Schaefer, Kai-Uwe Ritter
  • Patent number: 10172987
    Abstract: The present invention relates to systems and methods for in situ inspection, interrogation, and maintenance of heart pump function in subjects with an implanted heart pump. In certain embodiments, the system comprises a catheter assembly deliverable to the inflow port and outflow port of the implanted heart pump. The system comprises additional components used to examine pump function and prevent malfunction. In certain embodiments, the invention allows for temporary, mid-term, or permanent exclusion of the implanted heart pump from cardiac function without surgically removing the pump.
    Type: Grant
    Filed: May 13, 2014
    Date of Patent: January 8, 2019
    Assignee: YALE UNIVERSITY
    Inventor: Pramod Bonde
  • Patent number: 10172992
    Abstract: A system for performing fluid administration on a patient, the system including a flexible membrane forming a valve of a port having a valve seat, and an actuator having an actuator head, wherein the flexible membrane includes a membrane actuator clip configured to removably connect to the actuator head, the connection between the membrane actuator clip and the actuator head allowing the actuator to push the flexible membrane towards the valve seat to close the valve, and to pull the flexible membrane away from the valve seat to open the valve.
    Type: Grant
    Filed: November 14, 2013
    Date of Patent: January 8, 2019
    Assignee: DEBIOTECH S.A.
    Inventors: Frédéric Neftel, Florent Junod, Didier Vecten
  • Patent number: 10113543
    Abstract: The present invention includes a finger-type peristaltic pump with a ribbed anvil. According to some embodiments, a finger type peristaltic pump may comprise a plurality of pressing fingers, an infusion tube and a passive interfacing mechanism. The passive interfacing mechanism may comprise a channel, groove or other suitable mount for placing and mounting an infusion tube such that the pressing fingers are positioned on one side of the tube and the ribbed anvil on the opposite side. The pressing fingers may be positioned to apply an approximately perpendicular force on the tube, pressing it against the ribbed anvil, thus causing a pumping action.
    Type: Grant
    Filed: November 20, 2012
    Date of Patent: October 30, 2018
    Assignee: Q-CORE MEDICAL LTD.
    Inventors: Shachar Rotem, Ori Goldor
  • Patent number: 10092696
    Abstract: An acoustic line tracing system for tracing a fluid transfer system tubing line includes an acoustic receiver operably connectable to the tubing line and configured to receive the vibratory signal. The acoustic receiver includes a vibration sensor disposed to contact the tubing line and configured for detecting vibration of the surface of the tubing line caused by the vibratory signal, and an indicator producing at least one of an audio and a visual cue when the vibration sensor detects the vibratory signal.
    Type: Grant
    Filed: April 14, 2017
    Date of Patent: October 9, 2018
    Assignees: BAXTER INTERNATIONAL INC., BAXTER HEALTHCARE S.A.
    Inventors: James Scott Slepicka, Thomas Edward Dudar
  • Patent number: 10094367
    Abstract: A system for generating a mechanical wave is disclosed. The system comprises a camshaft having plurality of rotatable cams, serially mounted on a shaft along an axis of an elastic tubular shell to form a varying phase angle along the shaft. The system further comprises a plurality of cam followers arranged circumferentially about each cam, such that a rotary motion of the cams generates a linear motion of the cam followers to radially bias in internal wall the shell. The variation of the phase angle is selected to generate a three-dimensional traveling wave along the shell.
    Type: Grant
    Filed: February 21, 2013
    Date of Patent: October 9, 2018
    Assignee: Technion Research & Development Foundation Limited
    Inventors: Izhak Bucher, Eyal Setter
  • Patent number: 10086119
    Abstract: Fluid supply systems and methods for therapeutic fluid delivery systems, including those used for negative pressure wound therapy (NPWT) systems and methods.
    Type: Grant
    Filed: July 16, 2015
    Date of Patent: October 2, 2018
    Assignee: KCI Licensing, Inc.
    Inventors: Benjamin Andrew Pratt, Daniel Evans, Christopher Brian Locke, Kenneth Mitchel Knowles
  • Patent number: 10080677
    Abstract: A device for inducing weight loss in a patient includes a tubular prosthesis self-expandable from a collapsed position in which the prosthesis has a first diameter to an expanded position in which the prosthesis has a second, larger, diameter. In a method for inducing weight loss, the prosthesis is placed in the collapsed position and inserted into a stomach of a patient. The prosthesis is allowed to self-expand from the collapsed position to the expanded position and into contact with the walls of the stomach, where it induces feelings of satiety and/or inhibits modulation of satiety-controlling factors such as Ghrelin.
    Type: Grant
    Filed: January 4, 2016
    Date of Patent: September 25, 2018
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: Richard Stack, Richard Glenn, Trevor Moody, Fred Silverstein, Nathan Every, William Eubanks, Jr.
  • Patent number: 9889246
    Abstract: A pump system including a pump, an inflow cassette and an outflow cassette. The inflow cassette has a damping flexible membrane covering a damping region configured to dampen pressure pulsations in washing fluid passing through the damping region. The pump has a plurality of individually actionable pressing members that can each be individually actuated to pinch one of a plurality of suction tubes of the outflow cassette to at least partially prevent fluid flow through the one of the plurality of the suction tubes.
    Type: Grant
    Filed: February 15, 2017
    Date of Patent: February 13, 2018
    Assignee: STRYKER CORPORATION
    Inventor: Brady Woolford
  • Patent number: 9833284
    Abstract: A medical pump includes first and second compartments, which are configured to accept respective first and second containers of fluid to be pumped to a medical device, and a paddle, which is fitted between the first and second compartments. The pump additionally includes a control module, which is configured to drive the paddle to alternate between first time periods in which the paddle applies pressure to the first container so as to pump the fluid therefrom, and second time periods in which the paddle applies the pressure to the second container so as to pump the fluid therefrom.
    Type: Grant
    Filed: February 4, 2015
    Date of Patent: December 5, 2017
    Assignee: BIOSENSE WEBSTER (ISRAEL) LTD.
    Inventor: Assaf Govari
  • Patent number: 9821696
    Abstract: A door assembly includes a door frame, which generally defines a door opening. An assist handle is movably attached to the door frame. The assist handle is movable between a retracted position, proximal to the door frame, and a deployed position, distal from the door frame.
    Type: Grant
    Filed: May 4, 2016
    Date of Patent: November 21, 2017
    Assignee: GM Global Technology Operations LLC
    Inventors: James Logan, Jr., Richard J. Lange
  • Patent number: 9677555
    Abstract: A peristaltic pump, and related system method are provided. The peristaltic pump includes a cam shaft, first and second pinch-valve cams, first and second pinch-valve cam followers, a plunger cam, a plunger-cam follower, a tube receiver, and a spring-biased plunger. The first and second pinch-valve cams are coupled to the cam shaft. The first and second pinch-valve cam followers each engage the first and second pinch-valve cams, respectively. The plunger cam is coupled to the cam shaft. The plunger-cam follower engages the plunger cam. The tube receiver is configured to receive a tube. The spring-biased plunger is coupled to the plunger-cam follower such that the expansion of the plunger cam along a radial angle intersecting the plunger-cam follower as the cam shaft rotates pushes the plunger cam follower towards the plunger and thereby disengages the spring-biased plunger from the tube. A spring coupled to the spring-biased plunger biases the spring-biased plunger to apply the crushing force to the tube.
    Type: Grant
    Filed: December 21, 2012
    Date of Patent: June 13, 2017
    Assignee: DEKA Products Limited Partnership
    Inventors: Dean Kamen, John M. Kerwin, Colin H. Murphy, Larry B. Gray, Christopher C. Langenfeld, Michael J. Slate, Michael S. Place
  • Patent number: 9657902
    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: October 14, 2012
    Date of Patent: May 23, 2017
    Assignee: Q-CORE MEDICAL LTD.
    Inventors: Shachar Rotem, Ori Goldor
  • Patent number: 9618129
    Abstract: A normally closed valve includes a plurality of fluid channels in fluid communication with each other, defined in a flexible base such that when a fluid channel is compressed, a fluid flow through the fluid channel is occluded, otherwise, the fluid flow through the fluid channel is unoccluded; and means for selectively compressing or uncompressing a desired fluid channel.
    Type: Grant
    Filed: November 21, 2013
    Date of Patent: April 11, 2017
    Assignee: VANDERBILT UNIVERSITY
    Inventors: Frank E. Block, III, Philip C. Samson, John P. Wikswo
  • Patent number: 9544985
    Abstract: Provided is an apparatus for generating extreme ultraviolet light. The apparatus includes a collector mirror unit, a gas supply unit configured to supply a processing gas to the collector mirror unit, a gas supply nozzle arranged in at least one area of the collector mirror unit and configured to supply the processing gas to a surface of the collector mirror unit, and a controller configured to adjust a shape of a spray hole of the gas supply nozzle. The shape of the spray hole may be changed according to a control operation of the controller.
    Type: Grant
    Filed: July 20, 2015
    Date of Patent: January 10, 2017
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jin-Seok Heo, Jin-Hong Park
  • Patent number: 9522223
    Abstract: A housing for a fluid infusion device is provided. The housing can include a first housing component including a first engagement system. The first housing component can define a first compartment and a second compartment. The first engagement system can be coupled to the second compartment and movable relative to the second compartment. The housing can also include a second housing component coupled to the first compartment of the first housing component. The second housing component can include a second engagement system. The second engagement system can be movable relative to the second housing component.
    Type: Grant
    Filed: January 18, 2013
    Date of Patent: December 20, 2016
    Assignee: Medtronic MiniMed, Inc.
    Inventor: Matthew William Yavorsky
  • Patent number: 9463275
    Abstract: An infusion pump has a primary finger with an inclined surface, which is obliquely inclined to an advancing and retracting direction, and a secondary finger with an inclined surface, which is slidable relative to the inclined surface of the primary finger. When the primary finger is advanced, the secondary finger is retracted in proportion to the variation (increasing) in an entire width of an infusion tube, and when the primary finger is retracted, the secondary finger is advanced in proportion the variation (decreasing) in the entire width of the infusion tube. This configuration can suppress the occurrence of any gap between a tip surface of the secondary finger and an outer peripheral surface of the infusion tube in the advancing and retracting process of the primary finger. Consequently, this prevents the infusion tube from meandering, and suppresses the reduction in the accuracy of the rate of infusion.
    Type: Grant
    Filed: September 11, 2012
    Date of Patent: October 11, 2016
    Assignee: NIPRO CORPORATION
    Inventors: Mitsutaka Ueda, Ryoichi Akai, Hidenori Takahashi
  • Patent number: 9446185
    Abstract: Devices and methods for delivering therapeutic fluid to a patient's body are described. The devices may comprise a dispensing unit having a reservoir, a driving mechanism having a movable member for delivering therapeutic fluid to a patient's body, at least one sensor for sensing a relative position of the movable member and generating a signal, and a processor for controlling the driving mechanism to deliver an amount of therapeutic fluid that compensates for a change in the flow of the therapeutic fluid occurring during fluid delivery. The methods may be implemented by operating the driving mechanism, receiving a signal based on the position of the movable member, determining an amount of therapeutic fluid to deliver, and controlling the driving mechanism to deliver an amount of fluid that compensates for a change in flow occurring during fluid delivery.
    Type: Grant
    Filed: March 12, 2009
    Date of Patent: September 20, 2016
    Assignee: Roche Diabetes Care, Inc.
    Inventors: Ofer Yodfat, Avihoo P. Keret
  • Patent number: 9404490
    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: February 16, 2014
    Date of Patent: August 2, 2016
    Assignee: Q-CORE MEDICAL LTD.
    Inventors: Ori Goldor, Shachar Rotem
  • Patent number: 9309880
    Abstract: A fluid transporting device includes an elastic tube, a tube frame that holds the elastic tube in an arc, a rotary push plate arranged in the arc for facilitating fluid flow inside the elastic tube, and a plurality of push pins disposed between the elastic tube and the center of the arc. Each push pin includes a semispherical end portion that contacts the rotary push plate, a pushing end portion that places a bias on the elastic tube, and adjacent end portions of at least two push pins close the elastic tube when the semispherical end portions are pushed by an outer circumference arc of the rotary push plate.
    Type: Grant
    Filed: December 19, 2013
    Date of Patent: April 12, 2016
    Assignee: Seiko Epson Corporation
    Inventors: Hajime Miyazaki, Kazuo Kawasumi, Kenichi Ushikoshi
  • Patent number: 9217428
    Abstract: A tubing pump capable of improving flow rate accuracy which is required, particularly, in infusion pumps for medical use is developed. In a tubing pump that delivers a liquid in a tube which is separately loaded, a pump mechanism includes a valve mechanism unit that occludes and releases occlusion to the loaded tube and a tube pressing mechanism unit that repeatedly presses the tube, and the tube squeezing mechanism unit includes a pump block which has its movement guided by at least two guide shafts.
    Type: Grant
    Filed: February 6, 2013
    Date of Patent: December 22, 2015
    Assignees: Namiki Precision Singapore Pte. Ltd., Namiki Seimitsu Houseki Kabushiki Kaisha
    Inventors: Masahiro Koyama, Makoto Kashiwagi
  • Patent number: 9163623
    Abstract: A pumping mechanism is disclosed that includes a plurality of peristaltic pumping actuators configured to selectively and sequentially compress adjacent portions of a first portion of an at least partially compressible pumping element having an inlet that is upstream of an outlet. The plurality of pumping actuators are further configured to reciprocate at a common drive frequency with a first phase offset between each adjacent pair of pumping actuators. The pumping mechanism also includes at least one compensation actuator arranged to selectively compress a second portion of the at least partially compressible pumping element that is disposed between the first portion and the outlet. The at least one compensation actuator is configured to reciprocate at an optimal displacement and at a modulation frequency that is an integer multiple of the fundamental drive frequency and with a second phase offset between the at least one compensation actuator and the adjacent pumping actuator.
    Type: Grant
    Filed: December 8, 2011
    Date of Patent: October 20, 2015
    Assignee: CareFusion 303, Inc.
    Inventors: Robert D. Butterfield, Daniel Abal
  • Patent number: 9165119
    Abstract: Disclosed are systems and methods for power injectors incorporating a keep vein open functionality that is operable when an injection protocol (112) is suspended. The injector includes control logic (110) configured to include the injection protocol (112), and a separate drip mode injection protocol (114) executable only during a suspension of the injection protocol (112). In one embodiment, the drip mode injection protocol (114) is automatically or manually initiated immediately after and in response to the suspension of the injection protocol (112). In another embodiment, the drip mode injection protocol (114) is automatically initiated after a predetermined delay from start of the suspension of the injection protocol (112). The configuration parameters for the drip mode injection protocol (114) may be programmable prior to the initiation of an injection procedure, immediately prior to the execution of the drip mode injection protocol (114), or hard-coded into the injector.
    Type: Grant
    Filed: August 25, 2009
    Date of Patent: October 20, 2015
    Assignee: LIEBEL-FLARSHEIM COMPANY LLC
    Inventor: Andrew H. Kasako
  • Patent number: 9062673
    Abstract: A pump module, a pump base module and a pump system in which the pump module has a base and a flexibly deformable membrane, with the base and the membrane forming a line-shaped pump channel that is curved at least in sections, and the base having a pump channel inlet and a pump channel outlet, wherein the pump channel inlet and the pump channel outlet are connected with the pump channel for supplying and discharging a fluid in the pump channel in such a way, so that through a periodically rotating deformation of the membrane a fluid can be pumped through the pump channel from the pump channel inlet to the pump outlet.
    Type: Grant
    Filed: October 13, 2011
    Date of Patent: June 23, 2015
    Assignee: Fresenius Kabi Deutschland GmbH
    Inventor: Michael Becker
  • Publication number: 20150147206
    Abstract: This invention relates to a valve for metering filled and/or pasty media. In accordance with an embodiment, the valve comprises a valve element having a metering opening and a valve gate movable in translation and having a flow opening. The valve gate is configured for carrying out an oscillating double-stroke movement in the course of which the flow opening of the valve gate is temporarily aligned with the metering opening of the valve element. The flow opening of the valve gate is aligned with the metering opening of the valve element in the course of the double-stroke movement of the valve gate a first time during the forward stroke and a second time during the backward stroke.
    Type: Application
    Filed: November 21, 2014
    Publication date: May 28, 2015
    Inventor: Martin Reuter
  • Publication number: 20150125316
    Abstract: A fluid conveying device includes: a tube; a cam having protrusions; fingers arranged along the tube between the tube and the cam; a driving rotor which rotates the cam to sequentially push the fingers by the protrusions in a flowing direction of a fluid, repeatedly pressuring and opening of the tube, driving the cam; a detection unit which detects a rotating position of the cam; a control unit which calculates a cam rotation angle along a cumulative ejection volume, using a first approximation formula for an ejection area H where the cumulative ejection volume increases substantially in proportion to the rotation angle of the cam and a second approximation formula for a constant area J where the cumulative ejection volume little increases or decreases even if the cam rotates, driving the driving rotor until a rotating position of the cam corresponding to a designated cumulative ejection volume is reached.
    Type: Application
    Filed: January 9, 2015
    Publication date: May 7, 2015
    Inventor: Makoto KATASE
  • Patent number: 8961156
    Abstract: A fluid conveying device includes: a tube; a cam having protrusions; fingers arranged along the tube between the tube and the cam; a driving rotor which rotates the cam to sequentially push the fingers by the protrusions in a flowing direction of a fluid, repeatedly pressuring and opening of the tube, driving the cam; a detection unit which detects a rotating position of the cam; a control unit which calculates a cam rotation angle along a cumulative ejection volume, using a first approximation formula for an ejection area H where the cumulative ejection volume increases substantially in proportion to the rotation angle of the cam and a second approximation formula for a constant area J where the cumulative ejection volume little increases or decreases even if the cam rotates, driving the driving rotor until a rotating position of the cam corresponding to a designated cumulative ejection volume is reached.
    Type: Grant
    Filed: December 8, 2011
    Date of Patent: February 24, 2015
    Assignee: Seiko Epson Corporation
    Inventor: Makoto Katase
  • Patent number: 8961155
    Abstract: The present disclosure provides a linear peristaltic pump that is capable of dispensing varied amounts of liquid from a tube. The linear peristaltic pump includes an adjustably attached squashing plate that is configured to move lengthwise in the housing of the pump. The amount of liquid dispensed from a tube disposed in the pump varies based on the location of the squash plate in the housing.
    Type: Grant
    Filed: February 17, 2012
    Date of Patent: February 24, 2015
    Inventor: Douglas Shipman
  • Publication number: 20150050166
    Abstract: Embodiments of the present invention relate generally to certain types of reciprocating positive-displacement pumps (which may be referred to hereinafter as “pods,” “pump pods,” or “pod pumps”) used to pump fluids, such as a biological fluid (e.g., blood or peritoneal fluid), a therapeutic fluid (e.g., a medication solution), or a surfactant fluid. The pumps may be configured specifically to impart low shear forces and low turbulence on the fluid as the fluid is pumped from an inlet to an outlet. Such pumps may be particularly useful in pumping fluids that may be damaged by such shear forces (e.g., blood, and particularly heated blood, which is prone to hemolysis) or turbulence (e.g., surfectants or other fluids that may foam or otherwise be damaged or become unstable in the presence of turbulence).
    Type: Application
    Filed: October 27, 2014
    Publication date: February 19, 2015
    Applicant: DEKA Products Limited Partnership
    Inventors: Brian D. Tracey, Larry B. Gray, Jason A. Demers, James D. Dale, N. Christopher Perry, Michael J. Wilt
  • Publication number: 20150050172
    Abstract: A microfluidic pump is provided for managing fluid flow in disposable assay devices, which provides constant flows even at very low flow rates. Devices utilizing the microfluidic pump, as well as methods for manufacture and performing a microfluidic process are also provided.
    Type: Application
    Filed: March 15, 2013
    Publication date: February 19, 2015
    Inventors: Remus Haupt, Horst Bössneck
  • Patent number: 8939740
    Abstract: A tube-positioning system for loading tubing into a peristaltic pump includes a shell configured to slidably fit onto, and be releasably secured relative to, an exterior housing of a peristaltic pump. A pair of guides protrude from an upper portion of opposite side walls of the shell with each guide configured to releasably mount a first tube segment to extend between the guides.
    Type: Grant
    Filed: September 20, 2012
    Date of Patent: January 27, 2015
    Assignee: Medtronic-Xomed, Inc.
    Inventors: Gerould W. Norman, Craig L. Drager, Michael L. Koltz
  • Patent number: 8926297
    Abstract: A fluid transporter which transports fluid by pressing a plurality of radially disposed pressing shafts against a tube held in a circular-arc shape in directions from the inside of the circular-arc shape in accordance with rotation of a rotational pressing plate having a plurality of projections on the outer circumference thereof so as to allow flow of fluid includes: a first detecting section which detects the rotation angle of the rotational pressing plate; a second detecting section which detects the rotation angle of either a driving rotor for giving a rotational force to the rotational pressing plate or a reduction transmission mechanism for connecting the driving rotor and the rotational pressing plate; a data table which shows the relationship between the rotation angle of the rotational pressing plate and a cumulative delivery amount; and a controller which controls the drive of the driving rotor.
    Type: Grant
    Filed: July 7, 2011
    Date of Patent: January 6, 2015
    Assignee: Seiko Epson Corporation
    Inventors: Hajime Miyazaki, Kazuo Kawasumi
  • Publication number: 20150004034
    Abstract: The invention relates to a tube pump including an at least partly flexible tube and a pump element inserted in the tube, where the pump element comprises no more than one non-return valve member and a flow blocking member positioned a distance apart on a rod element. The non-return valve member is oriented on the rod element so as to allow for a fluid flow in the tube through the valve member along the rod element in the direction towards the flow blocking member. The flow blocking member is in a closed configuration placed to block the tube by engaging with the tube walls, and is in an open configuration configured to deform by a deformation of the tube such as to allow for fluid passage. The flow blocking member further is configured to attain its closed configuration when not opened by the tube deformation.
    Type: Application
    Filed: January 21, 2013
    Publication date: January 1, 2015
    Applicant: VEINUX APS
    Inventor: Jan Erik Vest Hansen
  • Publication number: 20140377098
    Abstract: There is provided a micro pump device including a micro pump, and a housing receiving the micro pump and provided with a pipe connection port.
    Type: Application
    Filed: August 30, 2013
    Publication date: December 25, 2014
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Sang Jin KIM, Bo Sung KU