Drip Meter Patents (Class 604/251)
  • Patent number: 10426943
    Abstract: An insert for a luer-type catheter connection includes a fluid pathway connecting a female end and a male end. The male end is configured for slidable insertion into a female luer fitting of a catheter, and the female end is configured to receive a male luer nozzle of a fluid delivery device. The insert also includes a threaded collar having internal threading faced for coupling with the female luer fitting and external threading faced for coupling with a locking collar on the fluid delivery device. A cartridge located in the fluid pathway is configured to hold a patency agent and further to release the patency agent into the catheter when fluid is passed through the cartridge.
    Type: Grant
    Filed: August 10, 2012
    Date of Patent: October 1, 2019
    Assignee: Attwill Medical Solutions Sterilflow L.P.
    Inventor: Attilio DiFiore
  • Patent number: 10383986
    Abstract: To offload forces from a tissue site being treated with reduced pressure, an offloading pressure component may be used as part of a reduced-pressure treatment system. A reduced-pressure source of the reduced-pressure treatment system vents positive pressure exhaust into the offloading pressure component to inflate the offloading pressure component. The offloading pressure component disperses forces away from the tissue site. Other devices, methods, and systems are presented.
    Type: Grant
    Filed: January 12, 2016
    Date of Patent: August 20, 2019
    Assignee: KCI Licensing, Inc.
    Inventors: Timothy Mark Robinson, Christopher Brian Locke, Richard Daniel John Coulthard
  • Patent number: 10314972
    Abstract: A drip chamber for an infusion tube, including: a first end including a drip tube; a second end including an exit port; and a wall connecting the first and second ends and including an interior surface with a hydrophobic portion. The drip chamber includes a space enclosed by the interior wall and the first and second ends. The hydrophobic portion of the interior surface repels liquid contacting the hydrophobic coating. The hydrophobic portion of the interior surface enables light to refract through the hydrophobic portion and the wall in the same manner as is the case when the hydrophobic portion is not present on the interior surface.
    Type: Grant
    Filed: September 26, 2017
    Date of Patent: June 11, 2019
    Assignees: BAXTER INTERNATIONAL INC., BAXTER HEALTHCARE S.A.
    Inventors: James F. Munro, Tuan Bui
  • Patent number: 10300197
    Abstract: A dropping rate measuring device for measuring a flow rate of liquid droplets which grow on a lower end of a nozzle and intermittently drop from the lower end of the nozzle includes an imaging unit that images a growing liquid droplet which is growing on the lower end of the nozzle at a plurality of time points and acquires a plurality of pieces of image data of the growing liquid droplet, and a data processor that calculates the flow rate by analyzing the plurality of pieces of image data acquired by the imaging unit.
    Type: Grant
    Filed: July 12, 2017
    Date of Patent: May 28, 2019
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Atsuhiko Hirata, Nobuhiro Kondo, Yuzo Higashiyama, Yoshitaka Hane, Yoshihide Amagai
  • Patent number: 10105486
    Abstract: A fluid connector includes an extending section having a spiked end to pierce a container port. The extending section includes at least one air conduit and at least one fluid conduit therethrough. The extending section further includes first and second abutment members. The first abutment member is adapted to abut a first or air side of the container port upon piercing of the container port, and the second abutment member, which is spaced from the first abutment member, is adapted to abut a second or fluid side of the container port. The fluid connector can further include grasping members extending from the extending section to facilitate rotation of the extending section relative to the container port during piercing thereof. The fluid connector can also include a check valve in fluid connection with the at least one air conduit. The check valve may be positioned within the extending section.
    Type: Grant
    Filed: June 6, 2016
    Date of Patent: October 23, 2018
    Assignee: BAYER HEALTHCARE LLC
    Inventors: Frederick W. Trombley, III, David M. Reilly
  • Patent number: 10064568
    Abstract: A device for determining the regional distribution of a parameter for lung perfusion includes an electrical impedance tomography unit with electrodes (E1, . . . EN), which can be placed on the thorax, that are connected to a control and analysis unit (2) and an administering device (4) for the intravenous administration of a conductivity contrast medium. The control and analysis unit (2) is configured to display changes in impedance distribution occurring as a consequence of the administration of conductivity contrast medium as a parameter for lung perfusion in the section plane as a function of time. The administering device (4) has a controllable dispensing device. The control and analysis unit and the dispensing device are connected with one another via a data link (3). A start time and an end time and a quantity of an administered bolus of the conductivity contrast medium are available to the control and analysis unit (2).
    Type: Grant
    Filed: August 8, 2013
    Date of Patent: September 4, 2018
    Assignee: DRÄGERWERK AG & CO. KGAA
    Inventors: Tim Baier-Löwenstein, Yvo Gärber, Stefan Mersmann, Eckhard Teschner, Steffen Leonhardt, Robert Pikkemaat
  • Patent number: 9801996
    Abstract: A drip chamber for an infusion tube, including: a first end including a drip tube; a second end including an exit port; and a wall connecting the first and second ends and including an interior surface with a hydrophobic portion. The drip chamber includes a space enclosed by the interior wall and the first and second ends. The hydrophobic portion of the interior surface repels liquid contacting the hydrophobic coating. The hydrophobic portion of the interior surface enables light to refract through the hydrophobic portion and the wall in the same manner as is the case when the hydrophobic portion is not present on the interior surface.
    Type: Grant
    Filed: May 13, 2016
    Date of Patent: October 31, 2017
    Assignees: BAXTER INTERNATIONAL INC., BAXTER HEALTHCARE S.A.
    Inventors: James F. Munro, Tuan Bui
  • Patent number: 9550024
    Abstract: An infusion adapter for connection with an infusion fluid container includes a connection portion including an anchor component for connecting to an injection port of the infusion fluid container, and a first port adapted for connection with a syringe assembly containing a medication fluid. The first port is in fluid communication with the connection portion. The anchor component is configured to securely connect the infusion adapter to the infusion fluid container to substantially prevent disconnection of the infusion adapter from the infusion fluid container once the infusion adapter is connected to the infusion fluid container.
    Type: Grant
    Filed: November 27, 2013
    Date of Patent: January 24, 2017
    Assignee: Becton Dickinson and Company Limited
    Inventors: Gert Hanner, Fredrik Stoltz, Alpa Patel, Weston F. Harding, Paul Fearis
  • Patent number: 9352081
    Abstract: A drip chamber for an infusion tube, including: a first end including a drip tube; a second end including an exit port; and a wall connecting the first and second ends and including an interior surface with a hydrophobic portion. The drip chamber includes a space enclosed by the interior wall and the first and second ends. The hydrophobic portion of the interior surface repels liquid contacting the hydrophobic coating. The hydrophobic portion of the interior surface enables light to refract through the hydrophobic portion and the wall in the same manner as is the case when the hydrophobic portion is not present on the interior surface.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: May 31, 2016
    Assignees: BAXTER INTERNATIONAL INC., BAXTER HEALTHCARE S.A.
    Inventors: James F. Munro, Tuan Bui
  • Patent number: 9265699
    Abstract: A gravity fed infant feeding device is disclosed. The gravity feeding device may have a cover with a through hole that allows liquid nutrients within the infant feeding device to be fed to an infant by way of gravity. If the infant feeding device clogs up, then either an integrated pump or a separate pump may be applied to the infant feeding device to increase pressure and push out the clog from the system. the through hole may be covered with a hydrophobic filter to allow air to pass there through and allow the feeding of the infant by way of gravity yet liquid nutrients within the infant feeding device cannot escape or be contaminated during use.
    Type: Grant
    Filed: October 12, 2009
    Date of Patent: February 23, 2016
    Assignee: MEDELA HOLDING AG
    Inventor: Dongchul D. Hyun
  • Patent number: 9238103
    Abstract: A kit comprising a medical dispensing container (402), such as a vial for diagnostic agents, and a liquid transfer device (401) to be used to transfer a liquid into or from said dispensing container. The transfer device allows substantially limiting the gaseous exchange between the inside of a vial and the external ambient, when the device is connected to the vial in steady state conditions.
    Type: Grant
    Filed: December 5, 2006
    Date of Patent: January 19, 2016
    Assignee: Bracco Suisse S.A.
    Inventors: Laurent Jakob, Frederic Rivas
  • Patent number: 9017296
    Abstract: An improved safety occluder and method of use provides an occluder for an infusion set having a first, occluding position, a second, non-occluding position which returns to the first, occluding position when the occluder's plunger is released, and a third, non-occluding position which retains the plunger in a configuration which allows fluid flow through the infusion set. The occluder may also include a locking mechanism to prevent accidental movement of the plunger out of the first, occluding position.
    Type: Grant
    Filed: March 31, 2009
    Date of Patent: April 28, 2015
    Assignee: Zevex, Inc.
    Inventors: Kent Beck, Philip Eggers, Jeff Juretich, Ryan Federspiel
  • Patent number: 8992490
    Abstract: The invention relates to a drip chamber for an infusion device and an infusion device having such a drip chamber, by means of which medical solutions can be fed to a patient, such as infusion solutions for chemotherapy. The drip chamber (1) according to the invention is provided for connecting to a fastener (8) of an infusion container (2), comprising a withdrawal part (25) for withdrawing fluid, having an opening (28) closed by a penetrable membrane (27) and an injection part (26) for injecting a fluid, having an opening (30) closed by a penetrable membrane (29). The connecting part (7) and/or piercing spike (11) of the drip chamber (1) according to the invention is designed such that a snap-fit or latching connection to the injection part (13) and/or the withdrawing part (25) of the fastener (8) of the infusion container (2) can be produced when the connecting part (7) of the drip chamber (1) is connected to the fastener (8) of the infusion container (2).
    Type: Grant
    Filed: May 18, 2010
    Date of Patent: March 31, 2015
    Assignee: Fresenius Kabi Deutschland GmbH
    Inventors: Torsten Brandenburger, Ismael Rahimy
  • Patent number: 8852141
    Abstract: Some embodiments of an infusion pump system may include an occlusion sensor that can be used to detect when an occlusion exists in the fluid path between the medicine reservoir and the infusion site on the user's skin. Such an occlusion may occur, for example, when the fluid flow line (e.g., a cannula, infusion set tubing, or the like) is kinked. If the medicine dispensation path to the user is occluded, the user may receive no dosage or a lower dosage of the medicine. As such, the occlusion sensor can be used to indicate when the fluid is flowing or not flowing, thereby permitting the infusion pump system to communicate an alarm to the user if an occlusion exists.
    Type: Grant
    Filed: January 18, 2011
    Date of Patent: October 7, 2014
    Assignee: Asante Solutions, Inc.
    Inventors: Amit Mhatre, Jian Yao Wu, Mitchell Wenger, Steven Friedman
  • Publication number: 20140276457
    Abstract: A drip chamber for an infusion tube, including: a first end including a drip tube; a second end including an exit port; and a wall connecting the first and second ends and including an interior surface with a hydrophobic portion. The drip chamber includes a space enclosed by the interior wall and the first and second ends. The hydrophobic portion of the interior surface repels liquid contacting the hydrophobic coating. The hydrophobic portion of the interior surface enables light to refract through the hydrophobic portion and the wall in the same manner as is the case when the hydrophobic portion is not present on the interior surface.
    Type: Application
    Filed: March 14, 2013
    Publication date: September 18, 2014
    Inventors: James F. Munro, Tuan Bui
  • Patent number: 8808253
    Abstract: The fluid injector system includes a source of injection fluid, a pump device, and a fluid path set in fluid connection with the source of injection fluid and the pump device. The fluid path set includes a drip chamber including an elongated body having a raised projection from substantially a top end to substantially a bottom end, the elongated body configured to receive and contain the injection fluid. A fluid level sensing mechanism is operably associated with a fluid control device, and includes a support for the drip chamber body, wherein the support is adapted such that the raised projection is in operational contact with a fluid level sensor associated with the support. The fluid level sensing mechanism is operable to transmit ultrasonic or light energy through the raised projection to be sensed by the fluid level sensor for sensing the injection fluid level in the drip chamber.
    Type: Grant
    Filed: April 2, 2012
    Date of Patent: August 19, 2014
    Assignee: Bayer Medical Care Inc.
    Inventors: Michael A. Spohn, Thomas P. Joyce, Michael J. Ehrenberger, James Albert Dedig, John A. Haury, Susan Lynn Felix, Gerald W. Callan, John D. Shearer, Jr., Jonathan R. Speicher, Christopher M. Scutt, Herb Grubic, Ralph E. Kopacko, William D. Barlow, Jerry A. Stokes, Jr., Richard G. Critchlow, Karen M. Zelenski, Mirza Hyder Hussain, Linda M. O'Meara, Roderick H. Beaulieu, Jennie Kwo, Luis A. Pedraza
  • 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: 8740862
    Abstract: Disclosed is an infusion flow regulator, in which a reference point is set within a manipulating range of a manipulation unit for regulating a flow rate in the infusion flow regulator, so that a manipulating point of the manipulation unit can be tuned with reference to the ratio of a flow rate measured at the reference point in relation to a prescribed injection flow rate, whereby the flow rate can be quickly and accurately tuned to the prescribed flow rate. The disclosure also includes an infusion flow regulating set including the infusion flow regulator, and an infusion flow regulating method using the same.
    Type: Grant
    Filed: August 31, 2011
    Date of Patent: June 3, 2014
    Assignee: Hanvit MD Co., Ltd.
    Inventor: Doo-Yong Lee
  • 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
  • Patent number: 8653976
    Abstract: There is provided a combination of a portable monitoring device for monitoring a portable drip infusion set for use in hospitals and the like and the portable drip infusion set, preferably being of the type comprising a liquid supply, a drip chamber downstream of the liquid supply for forming liquid drops and a flexible tube connecting the drip chamber with an injection needle.
    Type: Grant
    Filed: March 7, 2011
    Date of Patent: February 18, 2014
    Assignee: Dripmate A/S
    Inventors: Morten Mernoe, Morten Thing
  • Patent number: 8622979
    Abstract: An infusion pump, including: a microprocessor; a drip chamber; a drip tube with an end in the drip chamber; and an illumination system: with a light source for transmitting light through the drip chamber to a drop of fluid suspended from the drip tube; and for controlling illumination properties of the light transmitted to the drop. The pump includes an optical system for: receiving light transmitted through the drop; and transmitting, to the microprocessor, data regarding the received light. The microprocessor: generates, using the data, an image of the drop; locates, using the image, an outer edge of the drop to define a boundary of the drop; integrates an area enclosed by the boundary; and calculates a volume of revolution for the drop with respect to an axis for the drop that intersects the end of the drip tube, assuming symmetry of the drop with respect to the axis.
    Type: Grant
    Filed: October 19, 2010
    Date of Patent: January 7, 2014
    Assignees: Baxter Healthcare S.A., Baxter International Inc.
    Inventors: Roger L. Hungerford, Tuan Bui
  • Patent number: 8608711
    Abstract: Disclosed is an infusion port for regulating the inflow of an aqueous solution of an aqueous-solution pack into an external ringer spike as at least part of the ringer spike is inserted or withdrawn. The infusion port comprises an inflow part, a securing part, and a cover part. The inflow part is formed with at least one first inflow hole into which the ringer spike is inserted, so as to allow the inflow of the aqueous solution of the aqueous-solution pack as the ringer spike is inserted. Consequently, as the first inflow hole of the inflow part moves outside or inside the securing part, it is possible to regulate the flow of the aqueous solution of the aqueous-solution pack through the first inflow hole and into the ringer spike disposed inside the inflow part.
    Type: Grant
    Filed: October 9, 2009
    Date of Patent: December 17, 2013
    Assignee: Medipharma Plan Co., Ltd.
    Inventor: Im-Suk Lee
  • Patent number: 8591453
    Abstract: A dual pump irrigation/aspiration pump system capable of operating in a plurality of different modes suitable for a variety of different endoscopic surgical procedures. The system monitors actual or calculated intra-articular pressure and adjusts flow to maintain surgeon requested pressure at the surgical site while controlling outflow. The irrigation/aspiration pump system has an inflow pump and tubing dedicated to communicating fluid to the surgical work site and an outflow pump and tubing dedicated to removing fluid from the work site at a controlled rate. The system further has different size inflow and outflow pumps and tubing cassettes, means for altering the outflow fluid flow rate to accommodate a surgical tool and a means for declogging the surgical tool in the event of blockage. In a preferred embodiment a pressure control system provides inferred pressure information representative of the pressure at the work site.
    Type: Grant
    Filed: December 20, 2006
    Date of Patent: November 26, 2013
    Assignee: Linvatec Corporation
    Inventors: Eric Stubkjaer, David D. Blight, Peter C. Miller, Karl W. Guenther
  • Patent number: 8568370
    Abstract: A regulating device for an intravenous drip set comprising a main housing unit (1) which comprises a mobile roller (2) which can gradually compress a flexible tubing (4) until the tubing (4) is fully compressed and a fixed roller (3) which together with the mobile roller (2) squeeze the flexible tubing of an intravenous line into a totally closed position to act as a flusher for the intravenous line, whereby when by sliding the entire device downwards along the tubing (4) proximally towards a patient, flushing of fluid in the intravenous line is thereby achieved.
    Type: Grant
    Filed: April 20, 2007
    Date of Patent: October 29, 2013
    Assignee: Mecha-Medic Solution Sdn. Bhd.
    Inventor: Heng Hai Chew
  • Patent number: 8529511
    Abstract: A pump set for use in a liquid delivery pump of the type for delivering liquid to a patient, having an infrared radiation detector for detecting infrared radiation, and providing an indication that the pump set is properly loaded on the pump. The pump set comprises a conduit for the liquid and a safety interlock member which is carried by the conduit. The safety interlock member is formed of a material that transmits infrared radiation and blocks visible light.
    Type: Grant
    Filed: August 17, 2011
    Date of Patent: September 10, 2013
    Assignee: Covidien LP
    Inventors: Jason Boulanger, Kevin C. Meier, David Rork Swisher
  • Patent number: 8523829
    Abstract: An intravenous system includes an assembly for coupling a solution container to a delivery system drip chamber used for regulating the flow rate of solution in a patient intravenous line. In one embodiment, the solution delivery system includes a drip chamber having an opening formed in a side wall, and a vent plug disposed in the opening for providing a self-priming function to the IV system. A termination end of the patient intravenous line includes an end cap with a vent and a seal for allowing air in the intravenous line to escape through the end cap while preventing leakage of solution from the termination end.
    Type: Grant
    Filed: January 29, 2004
    Date of Patent: September 3, 2013
    Assignee: Becton, Dickinson and Company
    Inventors: Tom Minh Miner, Peter Hartl, Angelika Christoph
  • Patent number: 8439880
    Abstract: A flow control system includes a drip chamber having lower and upper wall sections and a collapsible wall extending between the lower and upper wall sections, a downwardly depending valve seat attached to the lower wall section, and a valve member disposed in the drip chamber, attached to the upper wall section and having a valve surface engageable with the valve seat. The system also includes a driver rotatably engaged to the lower and upper wall sections. Upon rotation of the driver in a first direction, the collapsible wall of the drip chamber moves between a collapsed condition in which the valve seat is sealingly engaged with the valve surface and an extended condition in which the valve seat is sufficiently spaced from the valve surface to form a flow passageway between the valve surface and the valve seat and permit flow through the opening of the drip chamber.
    Type: Grant
    Filed: November 24, 2010
    Date of Patent: May 14, 2013
    Assignees: Baxter Healthcare S.A., Baxter International Inc.
    Inventor: Georges Rondeau
  • Patent number: 8348106
    Abstract: A fluid dispensing device includes a pressurizing device coupled between a fluid bottle and a discharge tube for forcing the fluid to flow through the discharge tube without gravity, the pressurizing device includes a container having an inclined inner peripheral surface, and a piston slidably received in the container and having an outer peripheral portion for selectively engaging with the inclined inner peripheral surface of the container in order to pump the fluid into the discharge tube when the piston is moved toward the discharge tube with a coil, and for being selectively disengaged from the inner peripheral surface of the container when the piston is moved away from the discharge tube.
    Type: Grant
    Filed: July 13, 2010
    Date of Patent: January 8, 2013
    Inventor: Hong Jen Wang
  • Patent number: 8308726
    Abstract: A system to minimize fluid turbulence inside a tissue cavity during endoscopic procedures. A body tissue cavity of a subject is distended by continuous flow irrigation using a solenoid operated pump on the inflow side and a positive displacement pump, such as a peristaltic pump, on the outflow side, such that the amplitude of the pressure pulsations created by the outflow positive displacement pump inside the said tissue cavity is substantially dampened to almost negligible levels. The present invention also provides a method for accurately determining the rate of fluid loss into the subject's body system during any endoscopic procedure without utilizing any deficit weight or fluid volume calculation, the same being accomplished by using two fluid flow rate sensors. The present invention also provides a system of creating and maintaining any desired pressure in a body tissue cavity for any desired cavity outflow rate.
    Type: Grant
    Filed: September 1, 2005
    Date of Patent: November 13, 2012
    Inventors: Atul Kumar, Alka Kumar
  • Publication number: 20120271274
    Abstract: The present invention refers to a tubing set (12) suitable for use in co-operation with a hemodialysis machine (10). The tubing set comprises: an out-tube (14) for supplying the blood from the patient to a filter (16) of the machine; an in-tube (18) for supplying the blood from the filter back to the patient; a drip chamber (20) placed along one of said tubes, adapted to let the blood drip through an air buffer (22); and a vial gate (24) for the connection of vials (26) containing drugs to be delivered into the blood. The vial gate (24) according to the invention comprises a delivery lumen (28), suitable for delivering the drug (30) from the vial to the drip chamber, and a vent lumen (32), suitable for providing air (34) inside the vial in order to replace the delivered drug.
    Type: Application
    Filed: October 25, 2010
    Publication date: October 25, 2012
    Inventors: Reinhold Reiter, Massimo Fini, Alain Veneroni, Johannes Bartholomaeus, Gerhard Wiesen
  • Patent number: 8282608
    Abstract: A bubble free, self-priming IV set for use in the administration of liquids includes a coupling assembly for attaching the delivery system to a source of liquid and includes a coupling membrane for controlling the flow of liquid and air through the coupling assembly. The system also includes a drip chamber for receiving liquid through the coupling assembly, the drip chamber having a membrane for preventing air from leaving the drip chamber. A self leveling port is disposed within a wall of the drip chamber, the port being permeable to air, but impermeable to liquid. Finally, a patient conduit is in fluid communication with the drip chamber and further comprises a flow control plug disposed at the distal end of the conduit. The flow control plug is permeable to air but impermeable to liquid. Use of this system allows a clinician to attach a source of fluid to a patient without significant intervention, while the system self primes.
    Type: Grant
    Filed: September 7, 2007
    Date of Patent: October 9, 2012
    Assignee: Becton, Dickinson and Company
    Inventors: Tom M. Miner, Bryan G. Davis
  • Patent number: 8147464
    Abstract: The fluid injector system includes a source of injection fluid, a pump device, a fluid control device operably associated with the pump device, and a fluid path set in fluid connection with the source of injection fluid and the pump device. The fluid path set includes a drip chamber including an elongated body having a top end, a bottom end and a raised projection, the raised projection being substantially rectangular in shape and extending longitudinally from the top end along the drip chamber body and terminating adjacent to the bottom end. A fluid level sensing mechanism is operably associated with the fluid control device, and includes a drip chamber support for supporting the drip chamber body and a fluid level sensor associated with the drip chamber support.
    Type: Grant
    Filed: June 2, 2009
    Date of Patent: April 3, 2012
    Assignee: MEDRAD, Inc.
    Inventors: Michael A. Spohn, Thomas P. Joyce, Michael J. Ehrenberg, James A. Dedig, John A. Haury, Susan L. Felix, Gerald W. Callan, John D. Shearer, Jr., Herbert Grubic, Ralph Kopacko, William D. Barlow, Richard G. Critchlow, Roderick H. Beaulieu, Jennie Kwo, Luis A. Pedraza
  • Patent number: 8021336
    Abstract: A pump set for use in a liquid delivery pump of the type for delivering liquid to a patient, having an infrared radiation detector for detecting infrared radiation, and providing an indication that the pump set is properly loaded on the pump. The pump set comprises a conduit for the liquid and a safety interlock member which is carried by the conduit. The safety interlock member is formed of a material that transmits infrared radiation and blocks visible light.
    Type: Grant
    Filed: January 5, 2007
    Date of Patent: September 20, 2011
    Assignee: Tyco Healthcare Group LP
    Inventors: Jason Boulanger, Kevin C. Meier, David Rork Swisher
  • Publication number: 20110221596
    Abstract: There is provided a combination of a portable monitoring device for monitoring a portable drip infusion set for use in hospitals and the like and said portable drip infusion set, preferably being of the type comprising a liquid supply, a drip chamber downstream of said liquid supply for forming liquid drops and a flexible tube connecting said drip chamber with an injection needle.
    Type: Application
    Filed: March 7, 2011
    Publication date: September 15, 2011
    Applicant: Dripmate A/S
    Inventors: Morten MERNOE, Morten THING
  • Patent number: 7976515
    Abstract: The present invention describes IV regulators that allow interruption of normal controlled-flow for a safe and convenient bolus flush, either for a specific period of time or for a specific volume of saline flush. Two time-controlled IV regulators are shown, one employing a pneumatic cylinder counter-opposed by elastic band(s) for administering a bolus flush, and one employing a compressible lever and torsion spring counter-opposed by a rotary damper. In both cases the mechanisms disengage the roller-clamp from the IV tube for a predetermined amount of time to fully open fluid flow there through for a bolus flush before return to the regulated-flow position. The volume-controlled flow regulator employs two internal bladders and allows one bladder to fill while the other bladder drains (and vice versa) by flipping a slider paddle-type toggle, thus enabling the administration of a set volume of flush fluid.
    Type: Grant
    Filed: October 15, 2007
    Date of Patent: July 12, 2011
    Inventors: Todd Murphy, Christopher Klassen, Eric Schneider, Brian Lee Lipford
  • Publication number: 20110125103
    Abstract: A flow control system includes a drip chamber having lower and upper wall sections and a collapsible wall extending between the lower and upper wall sections, a downwardly depending valve seat attached to the lower wall section, and a valve member disposed in the drip chamber, attached to the upper wall section and having a valve surface engageable with the valve seat. The system also includes a driver rotatably engaged to the lower and upper wall sections. Upon rotation of the driver in a first direction, the collapsible wall of the drip chamber moves between a collapsed condition in which the valve seat is sealingly engaged with the valve surface and an extended condition in which the valve seat is sufficiently spaced from the valve surface to form a flow passageway between the valve surface and the valve seat and permit flow through the opening of the drip chamber.
    Type: Application
    Filed: November 24, 2010
    Publication date: May 26, 2011
    Applicants: BAXTER INTERNATIONAL INC., BAXTER HEALTHCARE S.A.
    Inventor: Georges RONDEAU
  • Publication number: 20100211023
    Abstract: A portable drip structure comprises an inflating structure and a main bag. The inflating structure includes a motor and an air container and the motor and the air container are communicative with each other via a pipe provided there between, so that the air container can be inflated by the inflating structure. The main bag is provided with a first and a second compartment that neighbor with each other and each compartment is provided on the main bag with an opening that can be enclosed. The first compartment is for disposing a drip bag while the second compartment is for disposing the inflating structure. Consequently, when the two openings are enclosed and the air container is inflated via the motor, the air container will be expanded to press the drip bag in the first compartment to drip the infusion liquid in the drip bag outward.
    Type: Application
    Filed: April 10, 2008
    Publication date: August 19, 2010
    Inventor: Chin-Ho Chiu
  • Patent number: 7722577
    Abstract: A bubble free, self-priming IV set for use in the administration of liquids that includes a drip chamber comprising a chamber inlet and a chamber outlet, a bubble isolation device disposed within the drip chamber that prevents air bubbles from exiting the chamber outlet, a tube having an inlet end coupled to the chamber outlet of the drip chamber and an outlet end, and an end plug that includes an air vent. The end plug may be coupled to the outlet end of the tube and is a flow restrictor so that when a liquid is moving through the tube, the velocity of the liquid flow is controlled such that the front of the liquid does not trap bubbles in the tube.
    Type: Grant
    Filed: August 16, 2005
    Date of Patent: May 25, 2010
    Assignee: Becton, Dickinson and Company
    Inventor: Tom M. Miner
  • Publication number: 20100063456
    Abstract: The application relates to a drip chamber (1) for an infusion device, to an infusion device with a drip chamber, and to an arrangement composed of an infusion container (16) and of such an infusion device. The drip chamber (1) of the infusion device has a securing part (11) for securing the drip chamber releasably to the infusion container. The securing part (11) of the drip chamber has a plurality of securing elements (12) which are arranged along the circumference of a circle and which, on the inner sides facing each other, have grooves (12A) extending along the circumference of a circle. The securing elements are designed in such a way that they can be spread from a position in which they engage firmly around the connector part of the infusion container to a position in which they release the connector part of the infusion device. The securing elements (12) secure the piercing spike (10) of the drip chamber against slipping out of the piercing part (23) of the connector part (20) of the infusion container.
    Type: Application
    Filed: November 7, 2007
    Publication date: March 11, 2010
    Inventors: Ismael Rahimy, Torsten Brandenburger
  • Patent number: 7662135
    Abstract: An apparatus regulates fluid flow supplied to a patient through an intravenous infusion system. The apparatus includes a first fluid passageway, a second fluid passageway, an inlet, and a control device. The first fluid passageway is for discharging fluid therefrom at a first predetermined rate of flow. The second fluid passageway is for discharging fluid therefrom at a second predetermined rate of flow, wherein the second predetermined rate of flow is different than the first predetermined rate of flow. The inlet is in flow communication with the first and second fluid passageways. The control device is between the inlet and the first and second fluid passageways, and is variably positionable for controlling fluid flow into the first and second fluid passageways.
    Type: Grant
    Filed: October 3, 2002
    Date of Patent: February 16, 2010
    Inventor: Byron Cris Bauer
  • Patent number: 7639151
    Abstract: The present invention is related to a liquid blocking apparatus and a system thereof, wherein if the liquid contained in an IV bag or a liquid tank is oozed out completely, the flow of liquid is blocked, the alarm lamp is turned on, the alarm sound is generated, and then the supply of liquid is maintained for a predetermined time.
    Type: Grant
    Filed: February 9, 2006
    Date of Patent: December 29, 2009
    Inventor: Sang-dae Lee
  • Publication number: 20090312719
    Abstract: A regulating device for an intravenous drip set comprising of a main housing unit (1) which comprises of a mobile roller (2) which can gradually compress the flexible tubing (4) until the tube (4) is fully compressed and a fixed roller (3) which together with the mobile roller (2) squeeze the flexible tubing of the intravenous line (4) into a totally closed position to act as a flusher for the intravenous line (4), whereby when by sliding the entire unit downwards along the tubing (4) proximally towards the patient, the flushing of the fluid in the intravenous line (4) is thereby achieved.
    Type: Application
    Filed: April 20, 2007
    Publication date: December 17, 2009
    Applicant: Mecha-Medic Solution Sdn. Bhd.
    Inventor: Heng Hai Chew
  • Patent number: 7584872
    Abstract: A fluid dispensing device includes a pressurizing device coupled between a fluid bottle and a discharge tube for forcing the fluid to flow through the discharge tube without gravity, the pressurizing device includes a container having an inclined inner peripheral surface, and a piston slidably received in the container and having an outer peripheral portion for selectively engaging with the inclined inner peripheral surface of the container in order to pump the fluid into the discharge tube when the piston is moved toward the discharge tube, and for being selectively disengaged from the inner peripheral surface of the container when the piston is moved away from the discharge tube.
    Type: Grant
    Filed: March 3, 2009
    Date of Patent: September 8, 2009
    Inventor: Samw Hong Jen Wang
  • Publication number: 20090192450
    Abstract: Branching catheter systems with diagnostic components for detecting and isolating fluid flow problems (e.g., leaks, occlusions, etc.) and methods for detecting and isolating fluid flow problems are disclosed. Among the fluid flow problems that may potentially be detected are leaks in the branching catheter systems (e.g., cuts, disconnected components, etc.). Another fluid flow problem that may be detected using the diagnostic systems of the present invention is the presence of occlusions or other blockages that prevent fluid flow within the catheter systems. In addition to identifying that a problem exists, the diagnostic components may preferably also be used to identify the location of the fluid flow problem as discussed herein. Connectors for use in the branching catheter systems are also disclosed.
    Type: Application
    Filed: April 3, 2009
    Publication date: July 30, 2009
    Applicant: Medtronic, Inc.
    Inventors: Keith A Miesel, Justin A. Blanco
  • Patent number: 7556619
    Abstract: The fluid delivery system generally includes a source of injection fluid, a pump device a fluid path set disposed between the source of injection fluid and the pump device, and a fluid control device. The fluid path set includes a multi-position valve. The fluid control device is operatively associated with the fluid path set and includes a valve actuator adapted to operate the multi-position valve. The valve actuator is adapted to close the multi-position valve to isolate the pump device from a patient and stop flow of the injection fluid to the patient at substantially any pressure or flow rate generated by the pump device for delivering a sharp bolus of the injection fluid to the patient. The valve actuator is generally adapted to selectively place the pump device in fluid communication with the source of injection fluid for supplying the injection fluid to the pump device and the patient.
    Type: Grant
    Filed: April 16, 2004
    Date of Patent: July 7, 2009
    Assignee: MEDRAD, Inc.
    Inventors: Michael A. Spohn, Thomas P. Joyce, Michael J. Ehrenberger, James Albert Dedig, John A. Haury, Susan Lynn Felix, Gerald W. Callan, John D. Shearer, Jr., Herb Grubic, Ralph Kopacko, William D. Barlow, Richard G. Critchlow, Roderick H. Beaulieu, Jennie Kwo, Luis A. Pedraza
  • Patent number: 7516873
    Abstract: A fluid dispensing device includes a fluid bottle, a discharge tube, a pressurizing device coupled between the bottle and the discharge tube for forcing the fluid to flow through the discharge tube without gravity, the pressurizing device includes a container coupled between the bottle and the discharge tube, a piston is slidably received in the container, and a motor is coupled to the piston to move the piston in the reciprocating action within the container, and a speed reduction device is coupled between the motor and the piston for allowing the piston to be actuated by the motor with a reduced driving speed and an increased driving torque.
    Type: Grant
    Filed: July 11, 2007
    Date of Patent: April 14, 2009
    Inventor: Samw Hong Jen Wang
  • Patent number: 7455658
    Abstract: A fluid dispensing device includes a bottle for receiving fluid, a discharge tube, and a pressurizing device coupled between the bottle and the discharge tube, for pressurizing the fluid and for forcing the fluid to flow through the discharge tube without gravity. The pressurizing device includes a container coupled between the bottle and the discharge tube, a piston slidably received in the container, and a moving device for moving the piston in a reciprocating action within the container. For example, a motor is coupled to the piston with a crank, to move the piston in the reciprocating action within the container.
    Type: Grant
    Filed: November 10, 2004
    Date of Patent: November 25, 2008
    Inventor: Samw Hong Jen Wang
  • Publication number: 20080287889
    Abstract: The present disclosure relates to an infusion control valve adapted to be actuated by a valve actuator. The present disclosure further relates to an infusion valve actuator adapted to actuate an infusion control valve upon being triggered by an authentication unit.
    Type: Application
    Filed: October 26, 2005
    Publication date: November 20, 2008
    Inventors: Pierre Sharvit, Michal Devir, Jacob Nushabacher, Greshon Goldenberg, Youval Katzman
  • Patent number: 7338476
    Abstract: An IV administration set identification kit includes identification elements for identifying an IV administration set having an IV solution container, a drip chamber, and an IV line including a Y-site or port. The identification elements are a first adhesive strip configured for attachment to the IV solution container, a second adhesive strip configured for attachment to the drip chamber, and a Y-site identification element configured for attachment to the Y-site, wherein the first and second adhesive strips and the Y-site identification element are marked with matching identification symbols. The first and second adhesive strips and the Y-site identification element are contained within a packet having an openable side. The packet may include a backing sheet to which the first and second adhesive strips are removably attached.
    Type: Grant
    Filed: August 8, 2005
    Date of Patent: March 4, 2008
    Inventor: Timothy Y. Kraushaar
  • Publication number: 20080051732
    Abstract: A drop sensing device for monitoring intravenous (IV) fluid flow is provided. The device comprises a U-shaped clip mountable on a drip chamber of an IV infusion set. The clip has a light source provided at one side for emitting radiation and a hollow cylinder provided in a through hole on the side opposite the light source. The cylinder includes an aperture of a diameter smaller than an average diameter of fluid drops passing the drip chamber, and an optical sensor mounted on a rear end of the cylinder opposite the aperture, so as to substantially enhance sensitivity of light ray receiving.
    Type: Application
    Filed: June 23, 2006
    Publication date: February 28, 2008
    Inventor: Thaiping Chen