Having Means For Eliminating And/or Preventing Injection Of Air Into Body Patents (Class 604/122)
  • Patent number: 10905804
    Abstract: In part, the disclosure relates to an aspirator having a handle that includes a suction connector extending from a proximal end face, a substantially cylindrical sleeve mount having an outer surface and a shoulder. A tubular member defining a bore and having flared end disposed in a suction head having one or more cantilevered protuberances can extend from the sleeve mount. The substantially cylindrical sleeve mount is in relief with respect to the shoulder and extends distally therefrom. The substantially cylindrical sleeve mount defines an aperture. The suction connector bore, bore of tubular member, inner cavity of handle and suction head bore define a fluid flow path or cavity. The aspirator can include a sleeve that receives the suction head. The sleeve engages and interferes with the sleeve mount. The suction head and sleeve's inner wall have one or more engineered clearances between them to enhance assembly.
    Type: Grant
    Filed: July 20, 2017
    Date of Patent: February 2, 2021
    Assignee: SurgiMark, Inc.
    Inventor: David John Yarger
  • Patent number: 10894131
    Abstract: The present invention includes methods, circuits, devices, assemblies, systems and associated computer executable code for monitoring medical conduits, sensing and measuring parameters of fluids (liquid and/or gas) within medical conduits and/or processing sensed/measured parameters of fluids within medical conduits. The present invention further includes medical infusion devices and/or systems including the monitoring, sensing, measuring and analyzing devices and methods described herein.
    Type: Grant
    Filed: June 29, 2016
    Date of Patent: January 19, 2021
    Assignee: Q-CORE MEDICAL LTD.
    Inventors: Boaz Eitan, Andrei Yosef, David Mizrahi, Ram Shtoltz, Rafi Greenfield
  • Patent number: 10869972
    Abstract: An air removal device for an intravenous fluid system includes a housing with an inlet for fluid communication with a fluid source, a fluid outlet for fluid communication with a blood vessel of a patient, and an air outlet. The air removal device further includes a disrupting element disposed within the housing in a flow path between the inlet and the fluid outlet, and an air chamber in fluid communication with the air outlet. The disrupting element includes a protrusion extending across the flow path. The flow path includes a first cross-sectional flow area at the inlet, and a second cross-sectional flow area at the protrusion. The second cross-sectional flow area is smaller than the first cross-sectional flow area.
    Type: Grant
    Filed: October 23, 2018
    Date of Patent: December 22, 2020
    Assignee: AILNH, LLC
    Inventors: Norton Herrick, David Saloff, Richard Green
  • Patent number: 10806901
    Abstract: Catheter adapters and vascular access device including catheter adapters are discloses. The catheter adapter tip opening has an internal curvature defining a tapered region in the lower portion, but not the upper portion, to support a flexured portion of the catheter to prevent kinking and occlusion.
    Type: Grant
    Filed: October 5, 2016
    Date of Patent: October 20, 2020
    Assignee: Becton, Dickinson and Company
    Inventors: Jonathan Karl Burkholz, Jeffrey C. O'Bryan
  • Patent number: 10758648
    Abstract: Methods and devices for treatment of damaged tissue are disclosed, including treatment of wounds by employing non-electrically powered, reduced pressure therapy devices. Maintenance and control of the sub atmospheric pressure exerted may be provided by such devices while minimizing discomfort to the user. The devices may be configured to be worn inconspicuously underneath clothing.
    Type: Grant
    Filed: March 14, 2014
    Date of Patent: September 1, 2020
    Assignee: KCI Licensing, Inc.
    Inventors: Ryan Conner, Dean Hu, Crystal Musante, Kenneth Wu
  • Patent number: 10737001
    Abstract: In part, the disclosure relates to an aspirator having a handle that includes a suction connector extending from a proximal end face, a substantially cylindrical sleeve mount having an outer surface and a shoulder. A tubular member defining a bore and having flared end disposed in a suction head having one or more cantilevered protuberances can extend from the sleeve mount. The substantially cylindrical sleeve mount is in relief with respect to the shoulder and extends distally therefrom. The substantially cylindrical sleeve mount defines an aperture. The suction connector bore, bore of tubular member, inner cavity of handle and suction head bore define a fluid flow path or cavity. The aspirator can include a sleeve that receives the suction head. The sleeve engages and interferes with the sleeve mount. The suction head and sleeve's inner wall have one or more engineered clearances between them to enhance assembly.
    Type: Grant
    Filed: July 20, 2017
    Date of Patent: August 11, 2020
    Assignee: SurgiMark, Inc.
    Inventor: David John Yarger
  • Patent number: 10729891
    Abstract: Disclosed are devices, systems, and methods for providing access to a patient. The patient access device comprises a proximal end, a distal end and a lumen therethrough. The patient access device further comprises a hollow shaft, an input port and a liquid supply port. At least a portion of the lumen passes through the shaft. The input port is coupled to the lumen, and the lumen and the input port are constructed and arranged to receive an elongate probe. The liquid supply port is in fluid communication with the lumen. The patient access is constructed and arranged to reduce gas from exiting the distal end while a portion of the elongate probe is positioned in the patient access device.
    Type: Grant
    Filed: August 24, 2018
    Date of Patent: August 4, 2020
    Assignee: ACUTUS MEDICAL, INC.
    Inventors: Randell L. Werneth, David Zarbatany, Mark MacGregor, Ricardo David Roman, R. Maxwell Flaherty, J. Christopher Flaherty
  • Patent number: 10722679
    Abstract: Embodiments of the invention provide methods and devices for improved drainage systems and tubing. In one embodiment, a context-sensitive flow interrupter is provided that inhibits or facilitates flow of fluid when engaged with a mating holder. In another embodiment, outflow is optimized through control of the pressure in gas pockets in a tube, drainage tube or assembly. In one such embodiment, gas pockets are vented to inhibit excessive back-pressure or suction on an organ, vessel or cavity being drained. In another such embodiment, loops in the tubes are avoided by using a mechanical template in the form of a groove or peg assembly to thread the slack in the drainage tube to generate a monotonic gradient. In another embodiment, such as for active drainage systems, a bypass channel is provided that allows an applied vacuum to go around an obstruction created by the collection of fluid in an undrained dependent loop.
    Type: Grant
    Filed: September 28, 2017
    Date of Patent: July 28, 2020
    Assignee: University of Florida Research Foundation, Incorporated
    Inventors: Samsun Lampotang, Nikolaus Gravenstein, Wilhelm K. Schwab, David E. Lizdas, Francesca K. Enneking
  • Patent number: 10722681
    Abstract: A dialysis catheter includes an entirely subcutaneous first section, with an exterior interface via penetration of the overlying subcutaneous skin layer. In addition the first section of the dialysis catheter includes a detachable portion that enables insertion via a guidewire instead of a peel-away sheath. The dialysis catheter has a layered design that minimizes risk of infection.
    Type: Grant
    Filed: September 14, 2017
    Date of Patent: July 28, 2020
    Inventor: Clifford Okundaye
  • Patent number: 10639455
    Abstract: An IV access device can include a needle hub that incorporates a flash chamber. The flash chamber can be used to provide visual confirmation of proper catheter placement within a vein. The flash chamber can include a path-defining structure to facilitate identifying whether blood is continually flowing into the flash chamber. The flash chamber may also be removable from the needle hub. In some cases, the needle hub may include a paddle grip that facilitates insertion of the catheter and separation of the needle hub from the catheter adapter.
    Type: Grant
    Filed: October 5, 2016
    Date of Patent: May 5, 2020
    Assignee: Becton, Dickinson and Company
    Inventors: Jonathan Karl Burkholz, Bart D. Peterson, Bin Wang, Ralph L. Sonderegger, Tyler Warner
  • Patent number: 10632299
    Abstract: Systems and methods are provided for intermittent microinfusion. A system may include a pump and an IV set that includes a y-port valve disposed below a pump interface portion of the IV tubing. The y-port valve may include an internal valve member that allows fluid to flow from the pump to a patient when no syringe is attached to the y-port. The internal valve member may be moved by the attachment of a syringe containing the medication to be infused to the y-port such that the fluid pathway from the pump to the patient is blocked and fluid from the syringe can be injected into the IV tubing between the y-port valve and the pump. The pump may retrograde pump the medication into the tubing via the y-port valve and then forward pump the medication to the patient when the syringe is removed from the y-port.
    Type: Grant
    Filed: December 29, 2016
    Date of Patent: April 28, 2020
    Assignee: CareFusion 303, Inc.
    Inventors: Robert Vasko, Stephen J. Bollish, Lawrence Farhat, Daniel Abal, Robert Dwaine Butterfield
  • Patent number: 10603422
    Abstract: A veno-arterial extracorporeal membrane oxygenation system includes a dual lumen drainage cannula configured for withdrawing blood from a patient's vasculature in a manner that provides a perfusion of oxygenated blood with reduced carbon dioxide content while unloading the left ventricle, with two points of access to the patient's vasculature. The dual lumen drainage cannula has a first drainage tube and a second drainage tube co-axially aligned with the first drainage tube. The first and second drainage tubes are fluidly coupled to a connector. A blood pump having a pump inlet is configured for fluidly connecting with the connector, while an oxygenator having an oxygenator inlet is configured for fluidly connecting with a pump outlet. An infusion cannula is configured for fluidly connecting with an oxygenator outlet for infusing oxygenated blood into a patient's bloodstream.
    Type: Grant
    Filed: October 2, 2015
    Date of Patent: March 31, 2020
    Assignee: CardiacAssist, Inc.
    Inventors: John C Marous, III, Robert G. Svitek, Jerry Stokes, Patrick A. Kelly
  • Patent number: 10568810
    Abstract: Disclosed is a disposable needle filter apparatus with a universal truncated syringe-receiving neck to enable the filtration of fluids/solutions aspirated into a needle-bearing syringe. The apparatus includes a needle seal stopper and needle stop to create a substantially airtight chamber to facilitate fluid aspiration through an enclosed filter and into the syringe. In an alternative embodiment, the filter apparatus includes an extended syringe-receiving neck configured to receive a specifically sized syringe/needle combination. In a further embodiment, the receiving neck is constructed as a modular unit to allow for interchangeable necks to accommodate different needle and syringe sizes with different cross-sectional diameters. In a yet further embodiment, the neck is constructed with stepped tapered segments of serially larger cross-sectional diameters to accommodate differently sized syringes. In a still further embodiment, the apparatus includes an accessory needle secured to the apparatus inlet.
    Type: Grant
    Filed: December 4, 2017
    Date of Patent: February 25, 2020
    Assignee: SAINT_GOBAIN PERFORMANCE PLASTICS CORPORATION
    Inventors: ZhenWu Lin, Kenneth D. Adrian, Kenneth Renfrew, Jacob Andrews
  • Patent number: 10525211
    Abstract: An infusion pump device and method for filling a fluidic system of the infusion pump with liquid medicament prior to infusion operation is presented. A control unit causes the infusion pump to: (a) bring a pump to an initial state; (b) switch a valve to a first state connecting a secondary reservoir to a first conduit and a primary reservoir; (c) retrieve medicament from the primary reservoir; (d) switch the valve to a second state connecting the secondary reservoir to a second downstream conduit; (e) expel the secondary reservoir contents into the second downstream conduit; (f) switch the valve to the first state; (g) retrieve the primary reservoir medicament; (h) switch the valve to the second state; and (i) expel the secondary reservoir contents into the second downstream conduit by shifting a piston to the initial position.
    Type: Grant
    Filed: October 9, 2013
    Date of Patent: January 7, 2020
    Assignee: Roche Diabetes Care, Inc.
    Inventors: Andreas Geipel, Joerg Dogwiler, Ulrich Haueter, Simon Scheurer, Rudolf Zihlmann, David Teutsch, Florian Kuehni, Reto Schaltegger
  • Patent number: 10525237
    Abstract: An IV catheter system may have a catheter component with a catheter hub, a cannula extending distally from the catheter hub, and a push feature adjacent to the catheter hub. The IV catheter system may also have a needle component with a needle hub, a needle extending distally from the needle hub along an axis, and a grip extending from the needle hub, generally parallel to the axis, with a pull feature. In the insertion configuration, the needle may be positioned within the cannula and the distal end of the needle hub may be seated in a needle port of the catheter hub. In the fluid delivery configuration, the needle may be positioned outside the catheter hub. The push and pull features may be positioned to facilitate manipulation with a single hand to move the IV catheter system from an insertion configuration to a fluid delivery configuration.
    Type: Grant
    Filed: October 5, 2016
    Date of Patent: January 7, 2020
    Assignee: Becton, Dickinson and Company
    Inventors: Jonathan Karl Burkholz, Bart D. Peterson, Stephen T. Bornhoft, Neville Chia, Siddharth Singh, Ralph L. Sonderegger, Bin Wang
  • Patent number: 10500349
    Abstract: This invention is an air block for industrial, medical, and non-medical uses. For example, the air block is connected to the proximal end of a vascular access catheter. The air block is either removably connected to the proximal end of the catheter or it is integral to the proximal end of the catheter. The air block permits introduction of other catheters or instrumentation through its central lumen and on into a lumen of the catheter while minimizing fluid loss or gain into the catheter. The air block further prevents air from entering the catheter and provides for removal of the air or other gas from the central lumen before it can enter the catheter where it could cause harm to the patient. The air block can be attached to various standard proximal catheter terminations including Luer fittings and hemostasis valve outer barrels.
    Type: Grant
    Filed: September 19, 2017
    Date of Patent: December 10, 2019
    Assignee: The Regents of the University of California
    Inventors: Kalyanam Shivkumar, David A. Cesario
  • Patent number: 10493262
    Abstract: A fluid control component configured for controlling fluid flow through the hub of a catheter assembly during and after placement into the patient is disclosed. In one embodiment, the fluid control component comprises a body disposed within a cavity of the hub, the body being movable between a first position and a second position, wherein the body does not pierce a valve disposed in the hub when in the first position and wherein the body pierces the valve when in the second position. The body includes a conduit to enable fluid flow through an internal portion of the body when the body is in the second position, and a plurality of longitudinally extending ribs disposed on an exterior surface of the body. The ribs provide at least one fluid flow channel between the valve and an external portion of the body when the body is in the second position.
    Type: Grant
    Filed: September 12, 2017
    Date of Patent: December 3, 2019
    Assignee: C. R. Bard, Inc.
    Inventors: Huy N. Tran, Mark A. Christensen, Chad A. Hadley, Jason R. Stats
  • Patent number: 10494626
    Abstract: An electroporation apparatus and its novel chamber with inlet ports for mixing cells and exogenous material. The inlet ports are oriented in nonparallel to each other immediately adjacent at the same top corner of the first wall of the chamber. The mixing chamber comprises successive wall sections, two curved walls at its bottom; the first curved corner is on the same side of the chamber where the liquids enter the chamber, and directs the liquids to the second curved corner at the opposing side of the chamber which in turn further redirects the mixing to the first curved corner. The direction of the liquid flow mixture change direction at least twice into the mixing chamber.
    Type: Grant
    Filed: May 11, 2011
    Date of Patent: December 3, 2019
    Assignee: CELLECTIS S.A.
    Inventors: Alan D King, Stephen B Deitz, Donald J Rodis, Jr., Derin C Walters, Robert J Walters
  • Patent number: 10357300
    Abstract: A delivery system is provided that includes a device having a body extending along a longitudinal axis between proximal and distal ends. The body includes a proximal chamber, a distal chamber and a wall between the chambers. The body includes a first port in communication with the proximal chamber and a second port in communication with the distal chamber. A shaft is movably positioned within the body. The shaft extends through the wall and includes a proximal plunger positioned within the proximal chamber and a distal plunger positioned within the distal chamber. Pressure introduced through an opening in the proximal end moves the shaft such that the proximal plunger moves a fluid within the proximal chamber out of the first port and the distal plunger moves a fluid within the distal chamber out of the second port to simultaneously actuate a bone filler dispenser. Systems and methods are also provided.
    Type: Grant
    Filed: June 2, 2017
    Date of Patent: July 23, 2019
    Assignee: Medtronic Holding Company Sárl
    Inventors: Neil Sasaki, Amy L. Arthur, Samuel V. Bolosan
  • Patent number: 10238458
    Abstract: Embodiments of an actuated cannula seal are disclosed In some embodiments, a cannula seal includes a base portion that engages with a cannula; and a seal portion integrally formed with the base portion, the sealing portion capable of engaging with an instrument shaft, the sealing portion capable of being actuated by an actuator so that the sealing portion is continually in motion relative to the instrument shaft. The actuation of the sealing portion can be accomplished by rotation or vibration of the sealing portion relative to the instrument shaft.
    Type: Grant
    Filed: May 29, 2018
    Date of Patent: March 26, 2019
    Assignee: Intuitive Surgical Operations, Inc.
    Inventors: Lawton N. Verner, Stephen J. Blumenkranz
  • Patent number: 10232156
    Abstract: A two-part bioactive agent delivery system, the system including a disposable part comprising an agent reservoir, a bolus chamber, the volume of the bolus chamber being less than the volume of the agent reservoir, an agent outlet, and a valve having a first position communicating the agent reservoir with the bolus chamber and a second position communicating the bolus chamber with the outlet; and a reusable part including a valve driver, a power source and control electronics, the control electronics being adapted to control the valve driver to actuate the valve to deliver bioactive agent from the agent reservoir to the agent outlet; the system further having a spring extending between the agent reservoir piston and a surface of the reusable part or of the disposable part to pressurize the agent reservoir when the spring is compressed and the agent reservoir contains a quantity of bioactive agent.
    Type: Grant
    Filed: September 8, 2017
    Date of Patent: March 19, 2019
    Assignee: Chrono Therapeutics Inc.
    Inventors: Zita S. Netzel, Gary Stacey, Alexander David Norman, Congyi Huang, Timothy Charles Frearson, Charles Frazer Kilby, Patrick H. Ruane, Alan J. Levy, Kevin W. Gelston, Jennifer Darmour, Jenny E. Hapgood, David Evans Roth, Ronald A. Overbeck, Ling-Kang Tong
  • Patent number: 10226566
    Abstract: There is a process and a system for removing body fluids from a body opening. The system can comprise a container having an inflow port and an outflow port. The inflow port is coupled to a fluid conduit, the outflow port is coupled to a pump. In one embodiment, disposed in the outflow port is a coagulant agent for coagulating bodily fluids. There can be one or more filters coupled to the container as well. In one embodiment at least one filter is coupled to the outflow port to prevent coagulated bodily fluids from leaving the container and flowing towards the pump. There can also be a process which involves providing at least one coagulant in the container, wherein the coagulant for coagulation of the body fluids and storing the coagulated body fluids in the container. There is also a process for assembling the container as well which in one embodiment includes providing both a coagulant and a filter coupled to the container.
    Type: Grant
    Filed: April 23, 2014
    Date of Patent: March 12, 2019
    Assignee: GENADYNE BIOTECHNOLOGIES, INC.
    Inventors: Shahzad Pirzada, Chien Ming Goh
  • Patent number: 10213586
    Abstract: A two-part bioactive agent delivery system, the system including a disposable part comprising an agent reservoir, a bolus chamber, the volume of the bolus chamber being less than the volume of the agent reservoir, an agent outlet, and a valve having a first position communicating the agent reservoir with the bolus chamber and a second position communicating the bolus chamber with the outlet; and a reusable part including a valve driver, a power source and control electronics, the control electronics being adapted to control the valve driver to actuate the valve to deliver bioactive agent from the agent reservoir to the agent outlet; the system further having a spring extending between the agent reservoir piston and a surface of the reusable part or of the disposable part to pressurize the agent reservoir when the spring is compressed and the agent reservoir contains a quantity of bioactive agent.
    Type: Grant
    Filed: January 28, 2016
    Date of Patent: February 26, 2019
    Assignee: Chrono Therapeutics Inc.
    Inventors: Zita S. Netzel, Gary Stacey, Alexander David Norman, Congyi Huang, Timothy Charles Frearson, Charles Frazer Kilby, Patrick H. Ruane, Alan J. Levy, Kevin W. Gelston, Jennifer Darmour, Jenny E. Hapgood, David Evans Roth, Ronald A. Overbeck, Ling-Kang Tong
  • Patent number: 10195335
    Abstract: A chamber is provided for a blood treatment system and has at least one space defined by a chamber wall, at least one blood inlet, and at least one inlet for a further fluid, which are connected with the space. Both the at least one blood inlet and the at least one inlet for the further fluid are formed on tube sections that protrude into the space of the chamber. In the operating condition of the chamber the space of the chamber is at least partly filled with blood or with a mixture of blood and either the further fluid or some other fluid. At least one, or preferably both, of the tube sections have a length such that the blood inlet and/or the inlet for the further fluid are located below the blood or fluid level in the chamber.
    Type: Grant
    Filed: February 23, 2018
    Date of Patent: February 5, 2019
    Assignee: Fresenius Medical Care Deutschland GmbH
    Inventors: Reinhold Reiter, Paolo Stabilini
  • Patent number: 10166322
    Abstract: Embodiments are described for receiving first data related to an amount of a first component in a multi-component liquid. A gain may be determined based on the first data. The multi-component liquid may be separated into at least two components. The gain may then be used to control a position of an interface between two separated components of the multi-component liquid, such as by using the gain in changing a speed of a pump pumping at least one of the components.
    Type: Grant
    Filed: March 27, 2015
    Date of Patent: January 1, 2019
    Assignee: Terumo BCT, Inc.
    Inventors: William Sweat, Christopher Corey Howells
  • Patent number: 10154904
    Abstract: Disclosed embodiments of introducer devices provide hemostatic sealing and allow a delivery catheter to be inserted through the introducer seals without the use of a separate loader device that covers a medical device that is mounted on the catheter. Some disclosed introducers comprise a housing, a distal sheath extending distally from the housing and adapted to be inserted into a patient's vasculature, a distal hemostatic seal mounted within the housing and a proximal hemostatic seal mounted within the housing, and a slidable tube positioned within the housing that is movable longitudinally relative to the distal hemostatic seal between a proximal position and a distal position, wherein in the proximal position a distal end of the tube is positioned proximal to the distal hemostatic seal with the distal hemostatic seal closed, and wherein in the distal position the distal end of the tube extends through the distal hemostatic seal.
    Type: Grant
    Filed: April 24, 2015
    Date of Patent: December 18, 2018
    Assignee: Edwards Lifesciences Corporation
    Inventors: Brian C. Gray, Tung T. Le, Andrew Oien, Sonny Tran, Thanh Huy Le, Robert Bowes, Maria L. Saravia, Uy D. Trinh, Hamid Rafi, Alejandro J. Froimovich Rosenberg
  • Patent number: 9999726
    Abstract: Disclosed is a fluid dispensing device that includes at least one reservoir to hold the therapeutic fluid, at least one other unit requiring communication with ambient air, at least partly, to operate, and at least one housing defining an interior to retain the at least one reservoir and the at least one other unit. The at least one housing has at least one vent port formed on one or more of its walls. The at least one vent port is adapted to direct or communicate air to maintain pressure equilibrium between the air pressure in the interior of the at least one housing and the ambient air pressure outside the at least one housing, and provide communication with the ambient air to the at least one other unit requiring air to enable operation of the at least one other unit.
    Type: Grant
    Filed: December 22, 2015
    Date of Patent: June 19, 2018
    Assignee: Roche Diabetes Care, Inc.
    Inventors: Ofer Yodfat, Avraham Neta
  • Patent number: 9968868
    Abstract: Provided is a pore water extraction kit for extracting pore water in a seabed sediment. More specifically, provided is a pore water extraction kit of a seabed sediment for more easily extracting pore water separated from a sediment through a centrifugal separator tube.
    Type: Grant
    Filed: November 6, 2015
    Date of Patent: May 15, 2018
    Assignee: KOREA INSTITUTE OF GEOSCIENCE AND MINERAL RESOURCES
    Inventors: Yuri Kim, Jong-Hwa Chun
  • Patent number: 9744344
    Abstract: An apparatus includes an introducer defining a lumen and a catheter movably disposed in the lumen. The introducer has a distal end portion configured to operably couple to an indwelling peripheral intravenous line at least partially disposed in a vein. The catheter is configured to be moved between a first position, in which the catheter is proximal to the peripheral intravenous line when the introducer is operably coupled thereto, and a second position, in which a distal surface of the catheter is distal to the introducer and disposed at a predetermined distance from a distal tip of the peripheral intravenous line. The predetermined distance defined between the distal surface of the catheter and the distal tip of the peripheral intravenous line is based at least in part on a venous anatomy associated with the vein.
    Type: Grant
    Filed: June 30, 2016
    Date of Patent: August 29, 2017
    Assignee: Velano Vascular, Inc.
    Inventors: Pitamber Devgon, Kevin J. Ehrenreich, Richard T. Briganti
  • Patent number: 9623186
    Abstract: A gasket having a novel structure ensuring both the gas tightness and the low-friction slidability is provided. A sliding portion of the gasket (13) includes at least a first annular projection (17A), an annular recess and a second annular projection (17B) arranged in this order in a direction rearward from a distal portion of the gasket serving as a liquid contact portion. The first projection (17A) is designed so that a first peak appears adjacent the distal portion of the gasket when the gasket is fitted in the syringe barrel (11) and a product ? of a contact pressure P1f and a width D1f of the first peak is 0.4???1.0 as determined by an FEM analysis.
    Type: Grant
    Filed: June 3, 2015
    Date of Patent: April 18, 2017
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Yuichiro Matsutani, Naoyuki Ishida, Eiji Yao
  • Patent number: 9603994
    Abstract: A device for administering liquids to an animal, in particular therapeutic agents, comprises a vessel (10; 50; 70; 100; 200) defining a collection chamber (11) therein. The following components are provided on the vessel: an inlet opening (13) for the therapeutic agent into the collection chamber, a first outlet duct (14) connected to a cannula element (3) which is prearranged so as to be introduced into the animal, the opening (14a) of the first outlet duct into the collection chamber being provided at a distance from a base (16) of the vessel, a second outlet duct (15) connected to a cannula element (3) which is prearranged so as to be introduced into the animal, the opening (15a) of the second outlet duct being provided substantially at the base of the vessel, and first shut-off means (17) for selectively shutting off the second outlet duct (15), the means being provided for preventing or allowing the flow from the collection chamber through the second outlet duct.
    Type: Grant
    Filed: March 4, 2011
    Date of Patent: March 28, 2017
    Inventors: Shahar Tsabari, Carla Emilia Pace
  • Patent number: 9517302
    Abstract: A method of alerting a user to a potential unintended bolus delivery includes delivering fluid to a patient along a first fluid flow path. The method also includes transmitting a signal prior to initiation of a change in fluid delivery to the patient along a second fluid flow path connected to the first fluid flow path upstream of the patient, and detecting the signal. The method further includes actuating an alarm to alert the user to a potential unintended bolus delivery if the signal is detected. A system for carrying out the method is also provided.
    Type: Grant
    Filed: June 4, 2012
    Date of Patent: December 13, 2016
    Assignees: BAXTER INTERNATIONAL INC., BAXTER HEALTHCARE SA
    Inventor: Ross G. Krogh
  • Patent number: 9498583
    Abstract: An infusion system includes a pump, a fluid delivery line, at least one sensor, a processor, and a memory. The fluid delivery line is connected to the pump for delivering fluid. The at least one sensor is connected to the fluid delivery line for emitting and receiving signals to detect whether there is air in the fluid delivery line. The processor is in electronic communication with the pump and the at least one sensor. The memory is in electronic communication with the processor. The memory comprises programming code for execution by the processor. The programming code is configured to determine a percentage of the air within an observed volume of the fluid delivery line.
    Type: Grant
    Filed: September 28, 2012
    Date of Patent: November 22, 2016
    Assignee: Hospira, Inc.
    Inventors: Kunal Sur, Paul T. Kotnik, Anatoly S. Belkin, John Hicks Dumas, III, Timothy L. Ruchti
  • Patent number: 9114241
    Abstract: A flushable catheter assembly having features to enable selective activation of fluid flow through the catheter assembly is disclosed herein. A septum is placed within the catheter adapter of the catheter assembly and includes a pathway that is closed prior to being biased open via a septum activator also positioned within the catheter adapter. A plurality of air vent channels is interposed between the septum and the inner surface of the catheter adapter to permit “flashback” of blood during insertion of the catheter into a patient. The septum activator is advanced through the pathway of the septum as a coupler is attached to a proximal opening of the catheter adapter.
    Type: Grant
    Filed: October 28, 2013
    Date of Patent: August 25, 2015
    Assignee: Becton, Dickinson and Company
    Inventors: Marty L. Stout, Weston F. Harding, S. Ray Isaacson, Jonathan Karl Burkholz, Austin Jason McKinnon
  • Patent number: 9101746
    Abstract: The present invention extends generally to a vascular access device that employs a septum and septum activator designed to minimize or eliminate the possibility that fluid will flow into interstitial spaces between the septum activator and the body of the vascular access device. The septum activator can be configured with a proximal end that has an outer diameter that is at least as great as the diameter of the lumen within which the septum activator is contained.
    Type: Grant
    Filed: June 11, 2013
    Date of Patent: August 11, 2015
    Assignee: Becton, Dickinson and Company
    Inventors: Marty L. Stout, Weston F. Harding, S. Ray Isaacson, Austin Jason McKinnon
  • Patent number: 9024768
    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: July 16, 2012
    Date of Patent: May 5, 2015
    Assignee: DEKA Products Limited Partnership
    Inventors: Marc A. Mandro, Robert J. Bryant
  • Patent number: 8992505
    Abstract: Apparatus and methods for providing a field environment filled proximal chamber of a multi-chamber syringe and for filling a prime-free syringe are disclosed. In addition, methods for resetting valves of a multi-chamber syringe without special tools or insertion of foreign objects into the syringe are disclosed. A valve for interfacing with syringes telescopically inserted into a larger syringe and which are generally used as proximal chambers in multi-chamber syringes used in mixing and serial delivery applications is disclosed. Four embodiments of novel resettable valves are disclosed. Also, a syringe assembly for delivering a saline-dose-saline medication sequence is disclosed.
    Type: Grant
    Filed: August 29, 2012
    Date of Patent: March 31, 2015
    Assignee: Thorne Consulting & Intellectual Property, LLC
    Inventors: Gale H. Thorne, Jr., Gale H. Thorne
  • Patent number: 8936563
    Abstract: A method for connecting medical tubing or any other type of fluidic circuit conduits (e.g., cannulae) to a ventricular assist device (“VAD”) or any other pumping device used for blood pumping during cardiac circulatory support for vascular surgery. The method prevent air bubbles from entering a cardiac circulatory support system when connecting cannulae to a VAD that may later enter the blood stream of a patient during cardiac surgery, and also provide for purging any air bubbles that may have entered the cardiac circulatory support system during a cannulae-VAD connection.
    Type: Grant
    Filed: October 18, 2011
    Date of Patent: January 20, 2015
    Assignee: Vitalmex International S.A. de C.V.
    Inventor: Benjamin Duenas
  • Patent number: 8911391
    Abstract: A system for connecting medical tubing or any other type of fluidic circuit conduits (e.g., cannulae) to a ventricular assist device (“VAD”) or any other pumping device used for blood pumping during cardiac circulatory support for vascular surgery. The system prevents air bubbles from entering a cardiac circulatory support system when connecting cannulae to a VAD that may later enter the blood stream of a patient during cardiac surgery, and also provide for purging any air bubbles that may have entered the cardiac circulatory support system during a cannulae-VAD connection.
    Type: Grant
    Filed: October 18, 2011
    Date of Patent: December 16, 2014
    Assignee: Vitalmex Internacional S.A. de C.V.
    Inventor: Benjamin Duenas
  • Patent number: 8911402
    Abstract: A drug delivery device comprising: a device body, an operating member which is configured to be movable relative to the device body for operating the drug delivery device, a preventing member which prevents movement of the operating member relative to the device body for operating the drug delivery device, wherein the preventing member is removable to allow movement of the operating member relative to the device body for operating the drug delivery device.
    Type: Grant
    Filed: September 29, 2010
    Date of Patent: December 16, 2014
    Assignee: Sanofi-Aventis Deutschland GmbH
    Inventors: Robert Veasey, Garen Kouyoumjian, Christopher Jones, Catherine Anne Macdonald, Marcus James Blachford, James Andrew Holt
  • Patent number: 8905969
    Abstract: A method of removing air from a flow path of a medical fluid injection system is described. An exemplary method performed by the medical fluid injection device includes delivering a first amount of fluid to a fluid flow path, isolating fluid flow along the flow path, forming a vacuum condition upstream of the fluid isolation, re-establishing fluid communications along the flow path, and delivering a second amount of fluid to the flow path.
    Type: Grant
    Filed: November 29, 2012
    Date of Patent: December 9, 2014
    Assignee: ACIST Medical Systems, Inc.
    Inventors: Sidney D. Nystrom, David J Hajicek, Touhid Khan
  • Publication number: 20140358080
    Abstract: A bubble entrapment device has a cylinder, a plunger, and a centre tube. Threads on the centre tube engage threads of the cylinder and the plunger respectively. The device has a chamber with a tapered end configuration provided by the fact that the cylinder has a funnel-shaped base and the plunger has a corresponding concave shape. Rotation of the tube handle while holding the cylinder causes the chamber to change in volume, but the chamber outlet remains in the centre of volume throughout. During use, the chamber will be retained at or near maximum volume, but near end of dose this may be reduced so that residual liquid is expelled. This is particularly advantageous for applications such as neo natal delivery systems, where dose volumes are small.
    Type: Application
    Filed: December 14, 2012
    Publication date: December 4, 2014
    Inventor: Keith Bryan
  • Publication number: 20140234166
    Abstract: In one embodiment, an exsanguination preventing device includes a collection container having an inlet configured to receive blood from a patient and an outlet configured to discharge the blood; a pump operatively coupled to the collection container; a conduit fluidly coupled to the collection container, which receives the blood from the collection container, the blood being moved by the pump; and an insertion device, which delivers the blood from the conduit to a bodily part of the patient. The collection container is configured to be sealingly coupled to a wound on the patient and air entrapped within the exsanguination preventing device is removed by an air removal system, such to prevent unwanted discharge of air into the bodily part of the patient. All the components of the exsanguination preventing device are sized such to make it portable in a pocket of a garment or backpack of a soldier.
    Type: Application
    Filed: August 15, 2013
    Publication date: August 21, 2014
    Inventor: Dirk Jerome Erickson
  • Patent number: 8795225
    Abstract: Detection of fluid conditions in an administration set. A light source is positioned to transmit an infrared light through administration set tubing and any fluid therein. A light sensor senses the infrared light transmitted through the tubing and generates an output signal. A frequency of the output signal is a function of an intensity of the light transmitted through the tubing. A processor receives and determines the frequency of the output signal, and compares the determined frequency to threshold frequency values to determine whether fluid is in the tubing. The processor also monitors the generated output signal to determine if the frequency of the output signal changes over time, and determines whether fluid is flowing in the tubing as a function of the determined change in frequency.
    Type: Grant
    Filed: September 29, 2008
    Date of Patent: August 5, 2014
    Assignee: Covidien LP
    Inventors: Thomas G. Lewis, William J. Byrd, Joseph A. Hudson
  • Patent number: 8795231
    Abstract: An automated reservoir filling system for a portable medical device is disclosed. The system includes a vial sealed by a septum partially filled with a liquid and a gas occupying a headspace. The system further includes a reservoir with a volume defined between a reservoir septum and a plunger head. The plunger head is coupled to a plunger arm which is further coupled to a drive system. Further included is a transfer system with a vial end that pierces the vial septum and remains in contact with the liquid, and a reservoir end that pierces the reservoir septum and remains in the reservoir volume. A controller coupled to the drive system to actuates the drive system automatically drawing fluid from the vial to the reservoir through the degas system.
    Type: Grant
    Filed: May 9, 2012
    Date of Patent: August 5, 2014
    Assignee: Medtronic Minimed, Inc.
    Inventors: Colin A. Chong, Arsen Ibranyan, Eric M. Lorenzen, Edgardo C. Halili
  • Patent number: 8758323
    Abstract: Embodiments are directed to portable infusion devices, systems, and methods of using the same for dispensing materials. In some cases, the devices, systems and methods may be used for infusing a material such as medicament, e.g., insulin, into a body in need thereof.
    Type: Grant
    Filed: July 29, 2010
    Date of Patent: June 24, 2014
    Assignee: Tandem Diabetes Care, Inc.
    Inventors: Michael Michaud, Geoffrey A. Kruse
  • Publication number: 20140142427
    Abstract: In part, the invention relates to catheters, methods, and blood clearing technologies suitable for use in an optical coherence tomography system. The optical coherence tomography system includes a control system, a probe including a catheter defining a lumen and a rotatable optical fiber located within the lumen, a fluid cartridge holder in communication with the lumen of the probe, a pump to move fluid from the fluid cartridge to the lumen of the probe; and a motor configured to rotate and pull the optical fiber through the lumen of a blood vessel. The pump and the motor are controlled by the control system. The catheter can include a wall that bounds the lumen of the probe, which defines a flush port and includes a valve in fluid communication with the flush port, the valve configured to permit fluid from the lumen to pass through the wall.
    Type: Application
    Filed: March 11, 2013
    Publication date: May 22, 2014
    Applicant: LIGHTLAB IMAGING, INC.
    Inventor: Christopher Petroff
  • Patent number: 8696626
    Abstract: A device for removal of a gas from a liquid in a medical infusion line has a housing containing a plurality of hollow fiber membranes. Preferably liquid passes on the exterior of the membranes and gas bubbles in the liquid pass into the lumens of the hollow fiber membranes. This is for removal by a vacuum. The device can include its own vacuum chamber. When the device has its own vacuum chamber, it can include a warning system to alert a user to replace the device when the provided vacuum is no longer sufficient.
    Type: Grant
    Filed: July 30, 2008
    Date of Patent: April 15, 2014
    Inventor: Claudia F. E. Kirsch
  • Publication number: 20140088503
    Abstract: The present invention relates to a device for the prevention of air embolisms during a catheterization procedure. The device includes a bulb element configured to secure to a sheath assembly. The bulb element includes a flexible wall, including a proximal section and a distal section, and an interior chamber in fluid communication with a pressurized fluid source. The proximal section of the bulb element includes a proximal hub, and the distal section of the bulb element includes a distal hub. The bulb element is collapsible, under the action of an external force, from a first, relaxed state in which the interior chamber has a first volume, to a second, collapsed state in which the interior chamber has a second volume less than the first volume, and wherein the bulb element is configured to assume its first, relaxed state in the absence of the external force.
    Type: Application
    Filed: September 19, 2013
    Publication date: March 27, 2014
    Applicant: Boston Scientific Scimed Inc.
    Inventors: Raj Subramaniam, Kurt D. Sparks
  • Patent number: 8679086
    Abstract: The present disclosure provides for an airless intravenous (IV) bag which contains a specialized device, referred to herein as the airless intravasculature infusion device (AIVID). The AIVID allows one to view the amount of fluid in the IV bag but substantially decreases or completely prohibits the risk of an inadvertent air infusion into a patient.
    Type: Grant
    Filed: August 23, 2012
    Date of Patent: March 25, 2014
    Inventor: Jeremy Scott Curry