Having Means For Varying, Regulating, Indicating, Or Limiting Injection Pressure Or Aspirating Suction Patents (Class 604/118)
  • Patent number: 9314555
    Abstract: A method and system for controlling inflammatory response at an internal tissue site of a patient utilizes a reduced-pressure treatment device. Controlling the inflammatory response may be accomplished in a number of ways that involve treating the inflammatory milieu. Treating the inflammatory milieu may include removing or moderating pro-inflammatory stimuli, e.g., fluids, enhancing perfusion of the tissue at or near the internal tissue site, or providing reduced-pressure therapy. The reduced-pressure treatment device is placed at or near the internal tissue site and is fluidly coupled to an external reduced-pressure source. The reduced-pressure treatment device provides reduced pressure proximate the tissue site and treats the inflammatory milieu. The reduced-pressure treatment device for controlling inflammatory response may be a minimally-invasive treatment device.
    Type: Grant
    Filed: July 17, 2012
    Date of Patent: April 19, 2016
    Assignee: KCI Licensing, Inc.
    Inventors: Eric Stevenson, Kenneth Norbury, Richard Paul Mormino, George Hutchinson
  • Patent number: 9289110
    Abstract: A surgical pump system arrangement receives an inflow cassette and provides fluid flow to a surgical site in a joint of a patient. The arrangement calculates load coefficients for a pressure loss curve based on an identified inflow cannula and an identified endoscope utilized therewith. The arrangement determines if the cannula is disposed at a surgical site and if adequate fluid flow is provided. Further, the arrangement determines if the inflow cannula and endoscope are properly identified. The arrangement integrates with an identified or unidentified surgical device to adjust pump operation when the surgical device is operating. The arrangement maps actuators disposed on a surgical handpiece or footswitch to control operation of the pump system, including providing suction to an outflow path of a surgical device that is not operating. The arrangement also determines when an inflow pump cassette is not properly inserted into the pump.
    Type: Grant
    Filed: March 1, 2013
    Date of Patent: March 22, 2016
    Assignee: STRYKER CORPORATION
    Inventors: Brady Woolford, Jesse Smith, Nikolai Chernyy, Andrew Hamel, Michael Hilldoerfer, Steffan Benamou
  • Patent number: 9215964
    Abstract: A vacuum system is described for endoscopic intracavity, intraluminal or intracorporeal vacuum therapy, for aspirating body fluids, wound secretions or gases from a hollow volume, such as a body cavity, a hollow organ, a tissue abscess or an intestinal lumen, particularly in the production of a temporary endoscopic closure of an intestinal lumen. Based on this, many embodiments of an endoscopy arrangement are described.
    Type: Grant
    Filed: March 12, 2012
    Date of Patent: December 22, 2015
    Assignee: LOHMANN & RAUSCHER GMBH & CO. KG
    Inventor: Gunnar Loske
  • Patent number: 9173996
    Abstract: A medical device for delivery of a fluid to a patient from a line terminating in a tubing needle. The medical device includes a cannula assembly for coupling the fluid into a cannula that is inserted into the patient. The cannula assembly has a first locking element disposed in a fixed position with respect to the cannula. Coupling the line to the cannula assembly is an infusion flap. The infusion flap includes a second locking element for engaging the first locking element of the cannula assembly and a lift tab for disconnecting the infusion flap from the cannula assembly. Coupling of the first and second locking elements requires initial mating of the infusion flap and cannula assembly followed by locking through rotation of the infusion flap with respect to the cannula assembly.
    Type: Grant
    Filed: September 21, 2006
    Date of Patent: November 3, 2015
    Assignee: DEKA Products Limited Partnership
    Inventors: Larry B. Gray, Jared Hamilton, Richard Lanigan, Brian Tracey
  • Patent number: 9144436
    Abstract: The invention provides improved apparatuses and related methods for the detection of needle penetration into negative pressure corporal spaces such as the epidural space. In one aspect, the invention provides a needle hub that includes a fluid reservoir chamber and a plunger engaged therewith, so that insertion of the plunger into the chamber displaces fluid causing a hanging drop to form.
    Type: Grant
    Filed: June 24, 2014
    Date of Patent: September 29, 2015
    Inventor: Thomas A. Senatore
  • Patent number: 9134333
    Abstract: A sample processing apparatus comprising: an aspiration section for aspirating a sample from a sample container; a sample container take-out/returning section for taking out a sample container containing a sample from a sample rack holding a plurality of sample containers, and for returning the sample container, from which the sample has been aspirated, to the sample rack; a sample processing section for processing the aspirated sample; a transport section for transporting the sample rack to a take-out position for taking out the sample container from the sample rack; and a transport controller for controlling the transport section to transport the sample rack to a processing position for performing a predetermined process on another sample container held by the sample rack when one sample container has been taken out from the sample rack by the sample container take-out/returning section is disclosed. A sample processing method is also disclosed.
    Type: Grant
    Filed: March 30, 2010
    Date of Patent: September 15, 2015
    Assignee: SYSMEX CORPORATION
    Inventors: Keisuke Kuwano, Daigo Fukuma
  • Publication number: 20150133863
    Abstract: The present invention relates to a pressure reducer for delivering drugs to a patient and the corresponding method of manufacture, said pressure reducer for delivering drugs to a patient comprising: a duct (9) with an inlet (11) and an outlet (13), a first body (1) with a first surface (5), and a second body (3) with a second surface (6) directly contacting the first body (1). One of the surfaces (5, 6) has a recess (7) such that a duct (9) is defined between both surfaces. Both bodies are attached to one another by means of a continuous attachment line running on both sides of the duct (9). The method of manufacture comprises a laser welding step in which the first body (1) is welded to the second body (3) by means of a welding seam extending along both sides of the duct.
    Type: Application
    Filed: May 6, 2013
    Publication date: May 14, 2015
    Inventors: Jordi Martín Llorens, Javier Torras Marí
  • Publication number: 20150105724
    Abstract: A therapeutic agent injection device including an injection device for delivering a therapeutic agent to a patient having a body, the body having a patient face and an port face opposite the patient face, the port face having an introducer port including an introducer channel and an injection port including an injection channel, the introducer channel being in fluid communication with the injection channel through a cross channel, the injection channel defining an injection axis; a delivery tube for subcutaneous delivery of the therapeutic agent to the patient, the delivery tube projecting from and being generally perpendicular to the patient face, the delivery tube defining an introducer axis and being in fluid communication with the injection port; and a patch, the patch being attached to the patient face and being operable to adhesively attach to the patient; wherein the injection axis is parallel to the introducer axis.
    Type: Application
    Filed: October 14, 2013
    Publication date: April 16, 2015
    Applicant: MEDTRONIC MINIMED, INC.
    Inventors: Susan McConnell Montalvo, Colin A. Chong, Hans Lickliter, Rafael Bikovsky
  • Patent number: 8992463
    Abstract: A system and method for balancing flows of renal replacement fluid is disclosed. The method uses pressure controls and pressure sensing devices to more precisely meter and balance the flow of fresh dialysate and spent dialysate. The balancing system may use one or two balancing devices, such as a balance tube, a tortuous path, or a balance chamber.
    Type: Grant
    Filed: February 19, 2013
    Date of Patent: March 31, 2015
    Assignees: Baxter International Inc., Baxter Healthcare S.A.
    Inventors: Michael E. Hogard, Donald D. Busby, Robert W. Childers, Yuanpang Samuel Ding, Katherine M. Holian, Mark E. Jablonski, Thomas D. Kelly, Ying-Cheng Lo, Shincy J. Maliekkal, Rodolfo G. Roger, Donald A. Smith, Atif M. Yardimci
  • Patent number: 8974411
    Abstract: A catheter assembly is provided having a conical diffuser tip for use in rapid infusion procedures. The conical diffuser tip provides a flared opening whereby the velocity of an infusant is decreased as the infusant travels through the catheter tip and exits into the vascular system of a patient. This decrease in velocity proportionately reduces the backpressure and/or recoil force of the catheter assembly thereby permitting the use of higher infusion rates. The catheter tip is introduced into the vasculature of a patient via a splittable introducer needle.
    Type: Grant
    Filed: May 21, 2008
    Date of Patent: March 10, 2015
    Assignee: Becton, Dickinson and Company
    Inventor: Austin Jason McKinnon
  • Patent number: 8956324
    Abstract: An irrigation and aspiration system is disclosed. The system can be configured to aspirate and irrigate alone, sequentially or concurrently. The system can be configured to aspirate and irrigate the nasal cavity. The system can be manually controlled. The system can have removable and easily cleanable reservoirs for aspirant and irrigant.
    Type: Grant
    Filed: April 5, 2011
    Date of Patent: February 17, 2015
    Assignee: Aardvark Medical, Inc.
    Inventors: Peter Christensen Baker, Clinton N. Slone, Michael J. Strasser, James Michael Lovette
  • Patent number: 8900179
    Abstract: A thrombectomy system may include an elongate shaft that defines a high pressure lumen and a low pressure lumen. The high pressure lumen may terminate near an end of the low pressure lumen. An expandable capture basket may be disposed near the end of the low pressure lumen. A thrombectomy apparatus may include an elongate shaft, an evacuation lumen extending within the elongate shaft and a high pressure lumen extending within the elongate shaft. A capture apparatus may be disposed within a wire lumen that extends within the elongate shaft such that the capture apparatus extends distally from the wire lumen.
    Type: Grant
    Filed: February 29, 2008
    Date of Patent: December 2, 2014
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: Mark L. Jenson, William J. Drasler, Joseph M. Thielen
  • Patent number: 8894605
    Abstract: The disclosure relates to an ophthalmosurgical system that includes a first irrigation fluid source. The system also includes a first irrigation fluid line connected to the first irrigation fluid source at a first end and open at a second end. The system further includes an aspiration fluid line, by which a fluid can be removed from an ocular lens. In addition, the system includes a suction pump, to which the aspiration fluid line is connected, and a second irrigation fluid source, to which a second irrigation fluid line is connected. The second irrigation fluid line is connected to the first irrigation fluid line at a coupling site. The system also includes a first valve, which is disposed between the first end of the first irrigation fluid line and the coupling site, and a second valve, which is disposed between the second irrigation fluid source and the coupling site.
    Type: Grant
    Filed: August 31, 2010
    Date of Patent: November 25, 2014
    Assignee: Carl Zeiss Meditec AG
    Inventor: Michael Eichler
  • Patent number: 8882707
    Abstract: A fluids exchanging system for medical use is provided. The system comprises an infusion pumping system, an aspiration pump, and an implantable catheter comprising a perforated dialysis cavity communicating with infusion and aspiration tubes in a communicating vessel manner. The implantable catheter further includes elastic holes.
    Type: Grant
    Filed: March 27, 2012
    Date of Patent: November 11, 2014
    Assignee: MICREL Medical Devices S.A.
    Inventor: Achilleas Tsoukalis
  • Patent number: 8876751
    Abstract: In various embodiments, a handpiece may include an irrigation line coupled to an adjacent line reservoir with a piston configured to move within the adjacent line reservoir to increase an irrigation pressure in the irrigation line near a surgical site. In some embodiments, a sensor may be used to detect an occlusion break in the aspiration line and information from the sensor may result in signaling an actuator to move the piston in response to the occlusion break detection to compensate for a vacuum pressure drop associated with the occlusion break. The handpiece may further include a purge bypass line between the irrigation line and the adjacent line reservoir to allow flow from the irrigation line to travel through the adjacent line reservoir to purge the adjacent line reservoir.
    Type: Grant
    Filed: August 6, 2009
    Date of Patent: November 4, 2014
    Assignee: Alcon Research, Ltd.
    Inventors: Bruno Dacquay, Robert J. Sanchez, Jr.
  • Patent number: 8864709
    Abstract: In a medical liquid supply device, a control unit controls a liquid supply driver so that a liquid flows from the liquid supply driver in a liquid supply path regardless of whether a liquid-supply ON mode is selected. All of the liquid flowing from the liquid supply driver flows into a communication path when the liquid-supply ON mode is not selected. At least a part of the liquid flowing from the liquid supply driver does not flow into the communication path and is thereby supplied from a distal end of the liquid supply path when the liquid-supply ON mode is selected.
    Type: Grant
    Filed: October 24, 2012
    Date of Patent: October 21, 2014
    Assignee: Olympus Medical Systems Corp.
    Inventors: Tsunetaka Akagane, Satoshi Honma
  • Patent number: 8852139
    Abstract: Devices, systems, and methods for treatment of an eye alter aspiration flow from the eye in response to an occlusion of the aspiration conduit pathway. Where aspiration is drawn from the eye using a volumetric pump, the pump can be reversed so as to induce fluid reflux from the aspiration conduit pathway into the eye to help clear the occlusion. The pump may vary the reverse flow in response to sensed aspiration pressure or the like, and the reverse flow may be halted before the pressure within the aspiration conduit pathway adjacent the eye significantly exceeds the irrigation fluid pressure and/or the pressure within the eye. Reflux may alternatively be generated by modulating a vent valve disposed between an irrigation conduit pathway and the aspiration conduit pathway.
    Type: Grant
    Filed: November 9, 2007
    Date of Patent: October 7, 2014
    Assignee: Abbott Medical Optics Inc.
    Inventors: David King, John I. Muri, Thomas B. Sutton
  • Patent number: 8840601
    Abstract: Disrupting tissue and devices and systems for disrupting tissue. The disclosure describes ways to deliver moieties to a target tissue, where the target tissue in general is not at the point of introduction, in such a way that minimal damage is produced in the tissue at the point of introduction. In some embodiments this is accomplished by jetting fluid at high velocity into the target tissue. The disclosure further describes novel agents deliverable in such systems for use in remodeling tissues. Some of these agents comprise a liquid while others do not. Additionally, although not specifically described in detail much of the disclosure may additionally be used in the delivery of therapeutic drugs.
    Type: Grant
    Filed: March 24, 2011
    Date of Patent: September 23, 2014
    Assignee: Shifamed Holdings, LLC
    Inventors: Amr Salahieh, Alan Schaer, Jeff Krolik, John Spiridigliozzi, Suresh Pai, Tom Saul
  • Publication number: 20140276639
    Abstract: The present invention relates generally to providing pressurized infusion of liquids and more particularly, is directed to providing a stable and pressurized flow of irrigation fluid to the eye during surgery.
    Type: Application
    Filed: May 13, 2014
    Publication date: September 18, 2014
    Applicant: Abbott Medical Optics Inc.
    Inventors: Branden J. Tarkeshian, Mark E. Steen, James B. Gerg, Fred Lee
  • Publication number: 20140276638
    Abstract: The present invention relates generally to providing pressurized infusion of liquids and, more particularly, is directed to providing a stable and pressurized flow of irrigation fluid to the eye during surgery.
    Type: Application
    Filed: March 14, 2013
    Publication date: September 18, 2014
    Inventor: Abbott Medical Optics Inc.
  • Patent number: 8827969
    Abstract: A medical waste fluid collection and disposal system includes a medical waste fluid collection cart including first and second fluid collection canisters. A valve assembly selectively communicates with the canisters and a valve drive system controls the valve assembly. A liquid level sensor is positioned within each of the canisters. A cart processor communicates with the liquid level sensors and the valve drive system. A cart drain line communicates with the valve assembly and a receptacle, a cart flushing line communicates with the valve assembly and the receptacle and a cart data line and a cart power line communicate with the cart processor and the cart receptacle. A station includes a drain pump that communicates with a drainage system and a station drain line, a flushing pump that communicates with a source of washing liquid and a station flushing line and a station processor in communication with the drain and flushing pumps. A station data line communicates with the station processor.
    Type: Grant
    Filed: July 21, 2011
    Date of Patent: September 9, 2014
    Assignee: Dornoch Medical Systems, Inc.
    Inventors: Anthony Martini, Lawrence Guerra
  • Patent number: 8827945
    Abstract: Irrigation and/or aspiration devices and methods may be configured to aspirate and irrigate alone, sequentially, or concurrently. The devices and methods may provide a base with a removable head, and adapted for partial or complete separation of the irrigation and aspiration functions. The devices and methods can be configured to aspirate and/or irrigate the nasal and sinus cavities. The devices and methods may be manually and/or automatically controlled. The devices and methods may include removable, and/or replaceable, and/or refillable, and easily cleanable reservoirs for aspirant and irrigant. The device head and/or aspirant reservoir may comprise a diagnostic device, i.e., test device and/or container after use of the devices and methods.
    Type: Grant
    Filed: April 27, 2009
    Date of Patent: September 9, 2014
    Assignee: Aardvark Medical, Inc.
    Inventors: Peter Christensen Baker, Clinton N Slone, Michael J. Strasser, James M Lovette, Thomas King, Richard Treadwell
  • Publication number: 20140236119
    Abstract: A distributed infusion pump system is provided with long-term recording of the type of medication, nutrition or hydration, pump output pressure, corresponding infusion flow, infusion flow resistance, and an automatic or manual alarm in the event that thresholds applied to these parameters or their derivatives are exceeded.
    Type: Application
    Filed: February 17, 2014
    Publication date: August 21, 2014
    Applicant: MICREL Medical Devices S.A.
    Inventor: Achilleas Tsoukalis
  • Patent number: 8801667
    Abstract: A powered irrigator for use in rinsing nasal cavities provides a main body having a handle and fluid reservoir detachably coupled to one another, an outlet nozzle extending from a top end of the handle, a pump mechanism operably coupled to a power source, and a switch operably coupled to the power source for turning the pump mechanism on and off, and when the switch turns on the pump mechanism, fluid flows from the fluid reservoir into a first fluid coupling between the reservoir and the pump mechanism and into a second fluid coupling between the pump mechanism to the outlet nozzle.
    Type: Grant
    Filed: July 10, 2012
    Date of Patent: August 12, 2014
    Assignee: Water Pik, Inc.
    Inventors: Kurt M. Taylor, Gary L. Sokol, Kenneth A. Hair, Harold A. Luettgen
  • Patent number: 8801666
    Abstract: The invention relates to a device for reducing pressure variations in a fluid flowing in an aspiration branch of a surgical system, which pressure variations are generated by a pump that delivers in a non-continuous manner in the active operating state, with a diffuser arrangement which is arranged, in the aspiration branch, upstream of the pump in the direction of flow of the fluid. The invention also relates to a surgical system, in particular an ophthalmic microsurgical system for lens surgery.
    Type: Grant
    Filed: June 18, 2008
    Date of Patent: August 12, 2014
    Assignee: Carl Zeiss Meditec AG
    Inventors: Christoph Kuebler, Martin Kraus, Michael Eichler, Tobias Maier
  • Patent number: 8801654
    Abstract: A pressure and a vision regulation method and device for irrigation of a body cavity (1), in which an inflow liquid pump (2) pressurizes the irrigation liquid in a feed line (13) and an outflow device (3) or an external suction source (20) drains the irrigation liquid from the body cavity (1) through a tubing (16) into a waste container (17). A control unit (4) controls either the inflow liquid pump (2) only or both the inflow liquid pump (2) and the outflow device (3) depending on an inflow irrigation liquid pressure from a pressure sensor (5). The method and the device are combined with a method for detecting blood cells, red blood cells, haemoglobin and/or debris in liquid coming from a surgical site to provide an automatic control and rinsing system with clear vision in the viewing area of the operational site.
    Type: Grant
    Filed: March 28, 2007
    Date of Patent: August 12, 2014
    Assignee: Medical Vision AB
    Inventors: Anders Möllstam, Sven Milton, Tomas Movin
  • Patent number: 8771240
    Abstract: The illustrative embodiments described herein are directed to apparatuses, systems, and methods for managing liquid flow associated with a tissue site that involves using reduced pressure to control fluid flow. In one instance, an apparatus includes a first valve and a second valve in fluid communication with a reduced-pressure source. The valves are movable between an open position and a closed position and are operable to change flow status (open to closed or vice versa) based on a presence of reduced pressure. At least one of the first valve or the second valve is in the closed position to obstruct a flow of a liquid while the other is in the open position. The apparatus also includes a reservoir fluidly coupled to the first valve and the second valve. Other systems, methods, and apparatuses are presented.
    Type: Grant
    Filed: June 28, 2013
    Date of Patent: July 8, 2014
    Assignee: KCI Licensing, Inc.
    Inventors: Aidan Marcus Tout, Christopher Brian Locke
  • Publication number: 20140188070
    Abstract: A sprayable polymeric foam hemostat for both compressible and non-compressible (intracavitary) acute wounds is disclosed. The foam comprises hydrophobically-modified polymers, such as hm-chitosan, or other amphiphilic polymers that anchor themselves within the membrane of cells in the vicinity of the wound. By rapidly expanding upon being released from a canister pressurized with liquefied gas propellant, the foam is able to enter injured body cavities and staunch bleeding. The seal created is strong enough to substantially prevent the loss of blood from these cavities. Hydrophobically-modified polymers inherently prevent microbial infections and are suitable for oxygen transfer required during normal wound metabolism. The amphiphilic polymers form solid gel networks with blood cells to create a physical clotting mechanism that prevent loss of blood.
    Type: Application
    Filed: March 7, 2014
    Publication date: July 3, 2014
    Applicant: University of Maryland, College Park
    Inventors: Matthew Dowling, Srinivasa R. Raghavan
  • Patent number: 8764723
    Abstract: Various embodiments of the present invention are directed to equalizing pressure in a reservoir containing fluidic media, possibly due to imperfect installation of the reservoir or an external influence such as an altitude or a temperature change. In various embodiments, fluidic media may be expelled from the reservoir through a needle and contained in an interior volume of a pierceable member before the needle pierces the pierceable member to establish a flow path to a user. In other embodiments, fluidic media may be expelled through a port of the reservoir into a chamber. In further embodiments, fluidic media may be expelled through a channel in a plunger head and out a passage in the reservoir when the channel and passage are aligned. In other embodiments, fluidic media may be expelled through a valve, and the valve may be pierceable by a needle to establish a flow path to the user.
    Type: Grant
    Filed: January 3, 2013
    Date of Patent: July 1, 2014
    Assignee: Medtronic MiniMed, Inc.
    Inventors: Colin A. Chong, Julian D. Kavazov, Eric M. Lorenzen
  • Patent number: 8753326
    Abstract: Various embodiments of the present invention are directed to equalizing pressure in a reservoir containing fluidic media, possibly due to imperfect installation of the reservoir or an external influence such as an altitude or a temperature change. In various embodiments, fluidic media may be expelled from the reservoir through a needle and contained in an interior volume of a pierceable member before the needle pierces the pierceable member to establish a flow path to a user. In other embodiments, fluidic media may be expelled through a port of the reservoir into a chamber. In further embodiments, fluidic media may be expelled through a channel in a plunger head and out a passage in the reservoir when the channel and passage are aligned. In other embodiments, fluidic media may be expelled through a valve, and the valve may be pierceable by a needle to establish a flow path to the user.
    Type: Grant
    Filed: January 3, 2013
    Date of Patent: June 17, 2014
    Assignee: Medtronic MiniMed, Inc.
    Inventors: Colin A. Chong, Julian D. Kavazov, Eric M. Lorenzen
  • Patent number: 8740866
    Abstract: A waste collection and disposal system for use in health care facilities is provided. The system includes a mobile waste collection unit for moving between use areas in the health care facility to collect waste material generated during medical procedures including body fluids, body tissues, saline, etc. The waste collection unit includes stacked upper and lower waste containers for receiving the waste material. During use, the upper waste container can be emptied into the lower waste container for temporary storage. In addition, different vacuum levels can be provided in the waste containers during complex procedures. Once a user desires to empty the waste collection unit, the waste collection unit is wheeled to a docking station. At the docking station, the waste material is off-loaded to a waste drain and the waste collection unit is cleaned and rinsed for further use.
    Type: Grant
    Filed: October 30, 2009
    Date of Patent: June 3, 2014
    Assignee: Stryker Corporation
    Inventors: Stephen J. Reasoner, Chamara Gamhewage, Joseph P. Hepp, III
  • Publication number: 20140142496
    Abstract: A cleaning catheter (200) includes fluid-delivery and suction lumens (520, 530). A flow regulator (700) defines suction and fluid ports (830, 827). A mechanical user control element (320) is configured to mechanically and non-electrically set activation states of the flow regulator (700), and transition between first and third configurations via a second configuration. When the control element (320) is in the first configuration, the flow regulator (700) blocks fluid communication (a) between the suction port (830) and the suction lumen (530) and (b) between the fluid port (827) and the fluid-delivery lumen (520). When the control element (320) is in the second configuration, the flow regulator effects fluid communication between the suction port (830) and the suction lumen (530), and blocks fluid communication between the fluid port (827) and the fluid-delivery lumen (520).
    Type: Application
    Filed: August 26, 2012
    Publication date: May 22, 2014
    Applicant: AIRWAY MEDIX SPOLKA Z.O.O.
    Inventors: Oron Zachar, Elad Einab, Gil Yigal
  • Patent number: 8728032
    Abstract: The present embodiments provide systems and methods suitable for delivering a therapeutic agent to a target site. The systems generally comprise a container for holding a therapeutic agent, and a pressure source configured to be placed in selective fluid communication with at least a portion of a reservoir of the container. In one embodiment, fluid from the pressure source is directed through a first region of the container in a direction towards a second region of the container. The fluid then is at least partially redirected to urge the therapeutic agent in a direction from the second region of the container towards the first region of the container and subsequently towards the target site. In alternative embodiments, the fluid from the pressure source may be directed through the second region of the container in a direction towards the first region of the container.
    Type: Grant
    Filed: January 17, 2012
    Date of Patent: May 20, 2014
    Assignee: Cook Medical Technologies LLC
    Inventors: Richard W. Ducharme, David E. Sugg, Eugene Skelton, Martin Bruggemann, Lyndsey Bryce
  • Patent number: 8708986
    Abstract: A catheter for collecting fluid such as blood from a vessel such as a coronary sinus of a patient has an elongated, flexible tubular portion and an annular sealing member spaced from a distal end of the tubular member. A proximal end of the tubular member is adapted to be connected to a source of suction for applying suction to a collection lumen of the tubular member. The distal end is placed in a blood vessel with the sealing member spaced from opposing surface of the vessel in an absence of a suction applied to the collection lumen. Suction is applied to the collection lumen in an amount sufficient to draw blood from the vessel through the fluid inlet and into the collection lumen and further sufficient to urge the opposing surface of the vessel to migrate into sealing engagement with the sealing member.
    Type: Grant
    Filed: September 14, 2009
    Date of Patent: April 29, 2014
    Assignee: Osprey Medical Inc.
    Inventors: James Edward Shapland, Tuan Miuh Doan, Mark Francis Brown
  • Patent number: 8672904
    Abstract: A medical system comprising apparatus and methods for improved irrigation and lavage in wound management. The device attaches to at least one irrigation fluid source and is configured to administer the fluid indirectly to a wound or tissue.
    Type: Grant
    Filed: February 26, 2010
    Date of Patent: March 18, 2014
    Inventor: Joseph P. Schultz
  • Patent number: 8663180
    Abstract: An irrigation system comprising: a reservoir with an inlet for pouring liquid into the reservoir, the inlet defining a closing element for closing the inlet; an insertion member defining an insertion end for insertion into a body cavity a human being, the insertion member defining at least one opening; and a liquid tube fluidly connecting the reservoir and having with the insertion member. At least one of reservoir and the insertion member is permanently fastened to the liquid tube.
    Type: Grant
    Filed: January 21, 2008
    Date of Patent: March 4, 2014
    Assignee: Coloplast A/S
    Inventors: Allan Tanghoej, Marlene Corydon Sinvani, Jesper Grøndahl Lund, Lars Olav Schertiger
  • Patent number: 8663163
    Abstract: A needle tip of a needle tube stuck in the skin is caused to be reliably positioned in the skin upper layer part and the injected drug is caused not to leak to the outside of the body. An injection needle is provided with a needle tube having a needle tip, a hub that holds the needle tube and an adjustment unit provided around the needle tube and having a needle-protruding surface through which the needle tip of the needle tube protrudes. The needle-protruding surface of the adjustment unit is formed such that the distance S from the circumferential edge to the circumferential surface of the needle tube is in the range of 0.3-1.4 mm.
    Type: Grant
    Filed: September 24, 2009
    Date of Patent: March 4, 2014
    Assignee: Terumo Kabushiki Kaisha
    Inventors: Yoichiro Iwase, Kazunori Koiwai, Tetsuo Tanaka, Sayaka Oomori, Takanori Ijitsu
  • Patent number: 8657785
    Abstract: An interventional catheter assembly comprising a catheter for insertion and guidance to a target site in a body lumen or a cavity and an operating head mounted in proximity to a distal end of the catheter and comprising a system for removing obstructive material from the target site is provided. In certain embodiments, the catheter assembly includes at least one aspiration port located proximal to the operating head that communicates with a first sealed lumen for withdrawing fluids and obstructive material from the target site, together with at least one liquid infusion port penetrating the catheter and located proximal to the at least one aspiration port that communicates with a second sealed lumen for supplying fluid to a location in proximity to the target site.
    Type: Grant
    Filed: November 30, 2010
    Date of Patent: February 25, 2014
    Assignee: Bayer Medical Care Inc.
    Inventors: Casey Torrance, Kate Walsh, Jared Salstrom, Scott Youmans, Edward I. Wulfman
  • Patent number: 8647315
    Abstract: A medical canister connector is presented for connecting to a medical canister, which has a patient port and a reduced-pressure port. The medical canister connector includes a first connection member that is coupled to a patient-port-attachment member, which is for coupling to a patient port on a medical canister and has a patient-port opening with a first longitudinal axis. The medical canister connector also includes a second connection member coupled to a reduced-pressure-port-attachment member, which is for coupling to a reduced-pressure port on the medical canister and has a reduced-pressure-port opening with a second longitudinal axis. A spacing member or pressure transport member may be used to couple the first connection member to the second connection member. The spacing member or transport member flexes and twists during connection. The medical canister connector may also help organize one or more pressure-sensing conduits. Methods are also presented.
    Type: Grant
    Filed: April 18, 2012
    Date of Patent: February 11, 2014
    Assignee: KCI Licensing, Inc.
    Inventors: Tyler Simmons, Alexander Sammons, Kenneth Knowles
  • Patent number: 8631831
    Abstract: In various embodiments, aspiration tubing connecting a handpiece to a surgical console may include a high compliant section, a transition section, and a low compliant section. In some embodiments, the high compliant section may have a lower durometer and/or different geometry than the low compliant section. The transition section may take a number of forms, including a connector or a continuous section of tubing that gradually increases in durometer and/or changes geometry through the length of the tubing. In the various embodiments, the high compliant section may provide flexibility near the handpiece to make the handpiece easier to hold and maneuver while the low compliant section may reduce the effects of occlusion break surge. In some embodiments, the high compliant section may include, for example, ribs, stiffening rings, a stiffening sleeve, or a stiffening sock to increase the stiffness of the high compliant section.
    Type: Grant
    Filed: August 12, 2009
    Date of Patent: January 21, 2014
    Assignee: Alcon Research, Ltd.
    Inventors: Ramon Carsola Dimalanta, Jr., Grace Chuang Liao, Robert Harry Peterson
  • Patent number: 8608697
    Abstract: A method and apparatus are provided for a fluid level insertion indicator that provides immediate feedback to a surgeon by draining when a tip of a needle has entered a body lumen, such as peritoneal cavity. An apparatus includes a handle connected to a hollow needle and a hollow stylet that extends through the hollow needle and has a blunt distal end that includes an opening for passing fluid. A spring biases the stylet to extend past the sharp distal end of the needle absent resistance by tissue against the stylet. An at least partially translucent pressure chamber configured to hold a quantity of fluid under pressure is connected to the proximal end of the stylet. The pressure chamber and stylet form a conduit for passing fluid through the opening in the blunt distal end when the stylet extends past the sharp distal end of the hollow needle.
    Type: Grant
    Filed: March 4, 2011
    Date of Patent: December 17, 2013
    Assignee: The Board of Trustees of the Leland Stanford Junior University
    Inventors: Pelu Tran, Khang Trong Dinh, Andrew Pipathsouk, Benjamin Chung, Hongbin Li
  • Patent number: 8608665
    Abstract: A device may include a first locking mechanism configured to connect a first end of the device to a needle, a second locking mechanism configured to connect a second end of the device to a syringe, a pressure transducer, a microprocessor and a light emitting diode. The pressure transducer may be configured to measure a first pressure at a first time and a second pressure at a second time. The microprocessor may be configured to receive the first pressure and the second pressure from the pressure transducer, determine a pressure difference between the first pressure and the second pressure, and determine a time difference between the first time and the second time. The light emitting diode may be configured to signal when the needle is properly situated based on the pressure difference and the time difference.
    Type: Grant
    Filed: August 16, 2011
    Date of Patent: December 17, 2013
    Inventors: Vijay Vad, Christian Haller, David Mandel
  • Patent number: 8608682
    Abstract: A pressure and a vision regulation method and device for irrigation of a body cavity (1), in which method an inflow liquid pump (2) pressurizes the irrigation liquid in a feed line (13) and in which an outflow device (3) or an external suction source (20) drains the irrigation liquid from the body cavity (1) through a tubing (16) into a waste container (17) and in which a control unit (4) controls either the inflow liquid pump (2) only or both the inflow liquid pump (2) and the outflow device (3) depending on an inflow irrigation liquid pressure from a pressure sensor (5), where the first control unit (4) compares the inflow irrigation liquid pressure and flow with pressures calculated to correspond to pressure in the body cavity for the respective flow for a nominal surgical site and that a matching between the calculated values and the inflow irrigation liquid pressures is made by altering the effect of either the inflow liquid pump (2) only or the inflow liquid pump (2) and/or the outflow device (3) and/or
    Type: Grant
    Filed: June 2, 2011
    Date of Patent: December 17, 2013
    Assignee: Medical Vision AB
    Inventors: Anders Möllstam, Sven Milton, Tomas Movin
  • Patent number: 8603057
    Abstract: A system and method are disclosed for automatically limiting the drainage of a bodily fluid such as cerebrospinal fluid (CSF) from a patient into a collection chamber. The collection chamber includes a vent having an hydrophobic filter for the passage of air to facilitate the movement of CSF yet to maintain a closed system. The system includes a buoyant float hingedly connected with the top of the collection chamber in one embodiment. When fluid rises in the collection chamber to a predetermined volume, buoyant force raises the float and causes a seal plug mounted on top of the float to seal one of an inflow port or a vent port. The float is limited to pivoting movement in one plane and to a certain angle within that plane. The system and method avoid overdrainage of CSF from the patient and overfilling of the collection chamber.
    Type: Grant
    Filed: July 16, 2012
    Date of Patent: December 10, 2013
    Assignees: Integra LifeSciences Corporation, The Regents of the University of California
    Inventors: Brian Hoffman, Michael McDermott, William R. Chang, Eric Scott Clasen
  • Publication number: 20130317478
    Abstract: A self-contained apparatus and corresponding methods are provided for delivering viscous fluids in a controlled manner, such as delivering a viscous fluid in a surgical setting. The self-contained apparatus can include a motion following pressure regulator that allows for linear control of a regulated pressure. The regulated pressure can be used for dispensing a viscous fluid from a syringe that is coupled to the self-contained apparatus. The pressure regulator regulates a pressure derived from a pressurized fluid reservoir located at least partially within a housing of the apparatus. This allows the viscous fluid to be delivered using pressure to provide a driving force greater than a force easily delivered manually, while still allowing a surgeon to retain fine control over the rate of viscous fluid delivery.
    Type: Application
    Filed: May 21, 2013
    Publication date: November 28, 2013
    Applicant: Ataviz LLC
    Inventors: Jack R. Auld, John C. Huculak, Matthew McCawley
  • 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: 8591464
    Abstract: A system and a method for distending a body tissue cavity of a subject by continuous flow irrigation by using two positive displacement pumps, such as peristaltic pumps, one pump on the inflow side and another pump on the outflow side, such that the amplitude of the pressure pulsations created by the positive displacement pumps inside the tissue cavity is substantially dampened to almost negligible levels. The present invention also provides a method of reducing the frequency of the said pressure pulsations. 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.
    Type: Grant
    Filed: August 26, 2005
    Date of Patent: November 26, 2013
    Inventors: Atul Kumar, Alka Kumar
  • Publication number: 20130303986
    Abstract: Provided is a venous catheter having an anchoring system and access valve for attachment to intravenous lumen tubing. The anchor includes a sloping base plate that is attached to the skin of a user for providing stability and immobility to the tubing. The sloping base plate elevates the tubing away from the skin in order to prevent catheter-related bloodstream infections. The plate can include an extension and cover for securing the tubing into position, and a shelf that allows the plate to extend beyond the extension to prevent skin contact with the tubing. The access valve is a T-shaped adapter for connecting the tubing to a dialysis machine tubing, and includes a flushing branch that eliminates the need to disconnect the tubing from the dialysis machine when flushing the dialysis vascular access. The access valve can be attached below the extension, snapped into the extension, or molded into the extension.
    Type: Application
    Filed: April 12, 2013
    Publication date: November 14, 2013
    Inventor: Richard V. Penalosa, JR.
  • Patent number: 8579856
    Abstract: The delivery systems of the present disclosure are configurable to administer either single-dose or multiple-doses of one or more substances to a user, for example to the eye, nose, mouth, ear or rectum of the user. The precise and repeatable dosing features of the presently disclosed delivery systems overcome many of the disadvantages associated with known methods for dispensing substances to, for example, the eye of a user. The delivery systems administer precise doses of a substance to a precise location from unit dosage forms that may be single-dose or multiple-dose unit dosage forms, which may be externally or internally pierced.
    Type: Grant
    Filed: August 5, 2010
    Date of Patent: November 12, 2013
    Assignee: Mystic Pharmaceuticals, Inc.
    Inventors: Timothy R. Sullivan, Jeffrey Nelson
  • Patent number: D739930
    Type: Grant
    Filed: June 7, 2012
    Date of Patent: September 29, 2015
    Assignee: SEASTAR CORPORATION
    Inventors: Harumi Takenouchi, Ayako Yasui