Having Means For Eliminating And/or Preventing Injection Of Air Into Body Patents (Class 604/122)
  • 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
  • Publication number: 20140046258
    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: Application
    Filed: October 28, 2013
    Publication date: February 13, 2014
    Applicant: Becton, Dickinson and Company
    Inventors: Marty L. Stout, Weston F. Harding, S. Ray Isaacson, Jonathan Karl Burkholz, Austin Jason McKinnon
  • Patent number: 8641667
    Abstract: A perfusion device and method is provided in various examples. In an example, the device includes a container having a first internal chamber configured to hold the material; a port for introducing the liquid into the chamber; a vent for releasing gas and liquid from the chamber; and a flow control device for sealing the vent to allow a vacuum to be drawn on the first chamber. In an example, the container includes a syringe that defines the internal material chamber and includes an end cap and a plunger. The vent may be formed by a venting passageway in the plunger and/or the cap. In various examples, the vacuum may be created by a medical syringe coupled to the container. In some examples, the medical syringe may also be used to deliver the liquid into the container.
    Type: Grant
    Filed: October 19, 2006
    Date of Patent: February 4, 2014
    Assignee: DePuy Synthes Products, LLC
    Inventors: Ed Kurek, Sean H. Kerr
  • Patent number: 8636692
    Abstract: A transseptal sheath defining a sheath lumen, a proximal end, and a distal end. A valve disposed within the sheath lumen proximate the distal end. The transseptal sheath defining at least one port along a portion of its periphery proximate the valve.
    Type: Grant
    Filed: November 16, 2011
    Date of Patent: January 28, 2014
    Assignee: Medtronic Ablation Frontiers LLC
    Inventors: Ricardo D. Roman, Thomas M. Castellano
  • Patent number: 8632624
    Abstract: A fluid trap apparatus includes an inlet configured to receive a flow of composite fluid into the apparatus. The composite fluid contains at least a first fluid and a second fluid. An outer wall defines an interior chamber. A flow diffuser is interposed within the interior chamber. The flow diffuser directs the flow of the composite fluid to circulate through the interior chamber. The first fluid and the second fluid separate as the composite fluid circulates through the interior chamber. A method of separating a first fluid from a second fluid includes introducing a flow of composite fluid into a separate chamber. A pressure gradient is created within the separation chamber. A flow diffuser is interposed in a flow path between an inlet and an outlet. The flow diffuser directs the flow of the composite fluid within the separation chamber. The first fluid and the second fluid are separated.
    Type: Grant
    Filed: October 13, 2011
    Date of Patent: January 21, 2014
    Assignee: General Electric Company
    Inventors: David E. Cassidy, Eric E. May, Garrett Austin Sheffer
  • Patent number: 8608715
    Abstract: One aspect of the invention is a method to vent gas from a body cavity during an endoscopic procedure. A body cavity is in fluid communication with an exhaust gas inlet of a vacuum break device. The vacuum break device has a chamber in fluid communication with both the inlet and an outlet. The chamber may comprise one or more openings in fluid communication with the atmosphere. A conduit in fluid communication with the exhaust gas outlet may be connected directly or indirectly to a suction source. The suction source may be activated.
    Type: Grant
    Filed: April 8, 2013
    Date of Patent: December 17, 2013
    Assignee: Lexion Medical, LLC
    Inventors: Keith A. Roberts, John Henry Burban, Duane E. Lloyd
  • Patent number: 8597243
    Abstract: Various embodiments of the present invention are directed to limiting a presence of air bubbles in a fluidic medium expelled from a reservoir. In various embodiments, a reservoir is shaped so as to limit a presence of air bubbles in a fluidic medium expelled from the reservoir. Also, in various embodiments, a plunger head within a reservoir is shaped so as to limit a presence of air bubbles in a fluidic medium expelled from the reservoir. In some embodiments, both a reservoir and a plunger head within the reservoir are shaped so as to limit a presence of air bubbles in a fluidic medium expelled from the reservoir.
    Type: Grant
    Filed: April 8, 2008
    Date of Patent: December 3, 2013
    Assignee: Medtronic MiniMed, Inc.
    Inventors: Julian D. Kavazov, Sheldon B. Moberg, Ian B. Hanson, Colin A. Chong, Eric M. Lorenzen, Rafael Bikovsky, Truong Gia Luan
  • Publication number: 20130304027
    Abstract: A system for detecting and removing a gas bubble from a vascular infusion line, comprising a disposable cassette adapted for disposition intermediate the fluid line, the disposable cassette comprising a body comprising an inlet port, a chamber, an outlet port, and a purge port, a first passageway connecting the inlet port to the chamber, the first passageway comprising a first bubble detection section where a gas bubble may be detected within the first passageway, a second passageway connecting the chamber with the outlet port, and a first pinch valve disposed along the second passageway intermediate the chamber and the outlet port, and a third passageway connecting the chamber with the purge port, the third passageway comprising a second bubble detection section where a gas bubble may be detected within the third passageway, and a second pinch valve disposed along the third passageway intermediate the chamber and the bubble detection section.
    Type: Application
    Filed: March 15, 2013
    Publication date: November 14, 2013
    Inventors: Ihsan A. Haddad, David T. Healey
  • Publication number: 20130289526
    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: Application
    Filed: March 5, 2013
    Publication date: October 31, 2013
    Inventors: Kalyanam Shivkumar, David A. Cesario
  • Publication number: 20130123700
    Abstract: A transseptal sheath defining a sheath lumen, a proximal end, and a distal end. A valve disposed within the sheath lumen proximate the distal end. The transseptal sheath defining at least one port along a portion of its periphery proximate the valve.
    Type: Application
    Filed: November 16, 2011
    Publication date: May 16, 2013
    Applicant: MEDTRONIC ABLATION FRONTIERS LLC
    Inventors: Ricardo D. ROMAN, Thomas M. CASTELLANO
  • Patent number: 8439929
    Abstract: A method of preparing a graft material for a bone surface at a surgical site includes providing a first syringe having continuous side wall having an inner surface and an outer surface wherein the syringe has a first end and a second end wherein the inner surface defines a chamber. An adapter is removably attached to the distal end of the syringe wherein the adapter has a throughbore in fluid communication with the chamber. A first selected amount of solid bone graft material is disposed within the chamber. A plunger is inserted into the chamber to define a selected volume between a distal end of the plunger and the second end of the first syringe. A second syringe containing a selected amount of a liquid biomaterial is attached to the adapter wherein the second syringe is in fluid communication with the adapter and the first syringe such that the liquid biomaterial is transferred from the second syringe to the first syringe.
    Type: Grant
    Filed: November 9, 2010
    Date of Patent: May 14, 2013
    Assignee: Nordson Corporation
    Inventors: Todd W. Sharratt, Cathy Miller
  • Publication number: 20130102995
    Abstract: Apparatus and methods for inhibiting the introduction of air into the body during a percutaneous procedure.
    Type: Application
    Filed: September 14, 2012
    Publication date: April 25, 2013
    Inventor: James R. Watson
  • Patent number: 8419685
    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: November 3, 2006
    Date of Patent: April 16, 2013
    Assignee: The Regents of the University of California
    Inventors: Kalyanam Shivkumar, David A. Cesario
  • Patent number: 8414550
    Abstract: One aspect of the invention is a method to vent gas from a body cavity during an endoscopic procedure. A body cavity is in fluid communication with an exhaust gas inlet of a vacuum break device. The vacuum break device has a chamber in fluid communication with both the inlet and an outlet. The chamber may comprise one or more openings in fluid communication with the atmosphere. A conduit in fluid communication with the exhaust gas outlet may be connected directly or indirectly to a suction source. The suction source may be activated.
    Type: Grant
    Filed: April 11, 2007
    Date of Patent: April 9, 2013
    Assignee: Lexion Medical, LLC
    Inventors: Keith A. Roberts, John Henry Burban, Duane E. Lloyd
  • Patent number: 8394321
    Abstract: In an infusion circuit (1), a peristaltic pump (7) displaced the infusion fluid along a line (3), sourcing it from a batch container (2). When a weight sensor (5) detects an emptying of the batch container (2), the pump is halted. If on stopping the pump the pressure measured by a sensor (6) operating in an expansion chamber (4) does not drop in excess of a predetermined threshold with respect to a non-empty container (2), a non-secure situation is signalled, due to an excessive quantity of air in the expansion chamber.
    Type: Grant
    Filed: April 27, 2009
    Date of Patent: March 12, 2013
    Assignee: Gambro Lundia AB
    Inventors: Giuseppe Franzoni, Luca Caleffi, Ranko Sakota
  • Publication number: 20130053774
    Abstract: An air trap is disclosed that includes a body having a sealed interior space with an inner wall, a center axis, and an inlet and an outlet on the center axis. The air trap also includes at least one projection disposed within the interior space and coupled to the inner wall. The at least one projection extends from the inner wall toward the center axis with an inner edge nearest to the center axis.
    Type: Application
    Filed: August 30, 2011
    Publication date: February 28, 2013
    Inventor: Gregg Rodne Kirkpatrick
  • Publication number: 20130053693
    Abstract: A system for preventing air from entering a first catheter of a multi-catheter system. Air is prevented from entering the proximal end of the first catheter by an axially elongate chamber having an impeller, the chamber being affixed to the proximal end of the first catheter. The air is removed through a port near the centerline of the chamber. Liquid removed with the air is returned to the chamber to minimize liquid loss during the procedure. A second catheter inserted through the chamber and into the first catheter is unable to entrain gas into the first catheter because any gas that enters the chamber is routed to the centerline of the chamber where it is removed. Inflow of fluid from an external pump scrubs the second catheter shaft of air bubbles attached by surface tension.
    Type: Application
    Filed: August 7, 2012
    Publication date: February 28, 2013
    Inventors: Eugene M. Breznock, Jay A. Lenker, David W. Wieting
  • Patent number: 8382712
    Abstract: A filter device of the present invention includes a hydrophilic filter located in a vertical space in a filter housing to filter off solid impurities in an introduced liquid, at least one hydrophobic filter located corresponding to at least one gas discharge hole provided in the filter housing, the hydrophobic filter allowing gas in the introduced liquid to be discharged to the outside before and/or after the liquid passes through the hydrophilic filter, and a blocking member for preventing gas in the liquid passing through the hydrophilic filter from flowing into the outlet tube, the blocking member being installed in the filter housing to block the outlet tube, the blocking member having a longitudinal passage formed in a center portion thereof so that the liquid is introduced into the outlet tube through the passage and discharged therefrom.
    Type: Grant
    Filed: February 10, 2010
    Date of Patent: February 26, 2013
    Assignee: E-Wha Fresenius Kabi Inc.
    Inventor: Yong-Nyun Kim
  • Patent number: 8377040
    Abstract: A vascular access device may form part of an extravascular system and function as an adapter including a gas permeable vent. A method of venting a medical device may include providing a vascular access device as part of an extravascular system, providing a gas permeable vent within the vascular access device, venting gas from the system through the vent, and closing the vent.
    Type: Grant
    Filed: November 5, 2007
    Date of Patent: February 19, 2013
    Assignee: Becton, Dickinson and Company
    Inventors: Jonathan Karl Burkholz, Wade A. Powell, Jason Hillman, Weston F. Harding, Kelly D. Christensen, John Stokes, Marty L. Stout, Christopher N. Cindrich, Dinesh S. Kommireddy