Patents Assigned to Navilyst Medical, Inc.
  • Patent number: 8894629
    Abstract: Valves for regulating fluid flows through medical devices are provided. In some embodiments, the valves are adapted for use in high flow applications and multiple valve elements disposed across a plurality of fluid flow paths branching from and into one or more inlets and outlets.
    Type: Grant
    Filed: October 18, 2011
    Date of Patent: November 25, 2014
    Assignee: Navilyst Medical, Inc.
    Inventors: Raymond J. Lareau, Benjamin D. Bell
  • Patent number: 8801696
    Abstract: A catheter hub assembly comprising a hub body having a proximal end, a distal end, and a shaft having a first suture hole, a collar and a snap ring; a hub knob having a second suture hole and rotatably coupled to the hub body; and a hub cap having a snap rut wherein the snap ring fits into the snap rut. In one embodiment, the hub body includes a lock element; the hub knob includes a first tab element and a second tab element; and the hub cap includes a groove; wherein the first tab element engages the lock element; and wherein the second tab element engages the groove. In another embodiment, the hub cap includes a lock element comprising a resilient tab and a catch; the hub knob includes a catch tab; wherein the catch tab engages the catch of the lock element.
    Type: Grant
    Filed: October 30, 2009
    Date of Patent: August 12, 2014
    Assignee: Navilyst Medical, Inc.
    Inventors: Richard Graffam, Ben Morris, Chuck Bourgeois
  • Patent number: 8790329
    Abstract: A pressure activated valve comprises a valve housing defining a lumen for receiving bodily fluids therein and a flexible membrane disposed in the valve housing. The flexible membrane includes a slit extending therethrough so that the flexible membrane may be moved between an open and a dosed configuration based on fluid pressure within the lumen. A nonthrombogenic coating may be formed on fluid contacting surfaces of the flexible membrane.
    Type: Grant
    Filed: April 29, 2013
    Date of Patent: July 29, 2014
    Assignee: Navilyst Medical, Inc.
    Inventors: Karla Weaver, Paul DiCarlo
  • Publication number: 20140200521
    Abstract: A pressure actuated valve for controlling the flow of fluid through a medical device, the valve comprises a housing including a lumen extending therethrough and a flow control membrane extending across the lumen to control the flow of fluid through the lumen. The membrane includes a plurality of slits extending therethrough so that, when the membrane is acted upon by a pressure of at least a threshold magnitude, the slits open to permit flow through the lumen and, when not acted upon by a pressure of at least the predetermined magnitude, the slits are maintained closed by a biasing force applied thereto by the membrane to prevent flow through the lumen. Each of the slits extends between end portions thereof along a curve wherein a distance between a first end portion of a first one of the slits and a first end portion of a second one of the slits is a minimum distance between the first and second slits.
    Type: Application
    Filed: January 11, 2013
    Publication date: July 17, 2014
    Applicant: Navilyst Medical, Inc.
    Inventors: Karla Weaver, Paul D. DiCarlo
  • Patent number: 8753320
    Abstract: An apparatus for controlling fluid flow to provide long-term access to the vascular system, and methods of making the same, are disclosed. Exemplary embodiments of the present invention describe a wedge or other similarly shaped geometrical feature for fixing an elastic component and controlling an internal stress of the elastic component.
    Type: Grant
    Filed: July 5, 2011
    Date of Patent: June 17, 2014
    Assignee: Navilyst Medical, Inc.
    Inventor: Stephen C. Miller
  • Patent number: 8726931
    Abstract: Pressure activated valves for catheters with improved tolerance of high pressure and high flow conditions are described. Embodiments of the valve comprise a flexible membrane with one or more linear slits therethrough, and means for applying tension to the flexible membrane in-line with the linear slits. The application of tension may optionally be facilitated by structural features of both the flexible membrane and the valve housing.
    Type: Grant
    Filed: April 8, 2011
    Date of Patent: May 20, 2014
    Assignee: Navilyst Medical, Inc.
    Inventors: Marcia Buiser, Damon Casiello, Charles R. Aubin, Paul E. Karnafel
  • Publication number: 20140058332
    Abstract: An implantable port includes a bottom portion having a needle-penetrable region running continuously along a majority of a perimeter of the implantable port. A method for customized suturing of an implantable port also includes creating a port pocket, and advancing a suture needle through the needle-penetrable region. The needle-penetrable region could be a self-sealing elastomer, such as silicone. The method could include the step of determining suture locations after the port pocket is created.
    Type: Application
    Filed: November 1, 2013
    Publication date: February 27, 2014
    Applicant: Navilyst Medical, Inc.
    Inventors: George Bourne, James Culhane
  • Patent number: 8585660
    Abstract: A valve assembly for a catheter comprising a housing having a lumen extending therethrough a first port opening to a proximal end of the lumen via a first port passage and a valve disposed in the first port passage, the valve being biased toward a closed configuration to prevent fluid flow therethrough when the first port passage is not in use in combination with a second port opening of the housing in fluid connection with a proximal end of the lumen via a second port passage.
    Type: Grant
    Filed: January 25, 2006
    Date of Patent: November 19, 2013
    Assignee: Navilyst Medical, Inc.
    Inventor: Nathan Murphy
  • Patent number: 8540663
    Abstract: High flow rate catheters, and related methods, are useful in dialysis and other procedures. A catheter according to the invention comprises a hub and a generally elongated conduit. The conduit has a substantially continuous and smooth wall. The conduit also defines at least one lumen and has a length extending from a proximal end to a distal end of the conduit. The proximal end is coupled to a hub and the distal end has an opening in communication with the lumen. The conduit has a conical shape which tapers along the length.
    Type: Grant
    Filed: July 2, 2008
    Date of Patent: September 24, 2013
    Assignee: Navilyst Medical, Inc.
    Inventors: Christopher T. Davey, Michael R. Sansoucy, Matthew N. McCarthy
  • Patent number: 8540685
    Abstract: A pressure activated two-way slit valve assembly is designed to be used in combination with, but not limited to, a high flow rate catheter to prevent accidental ingestion of air or loss of blood if the closure cap comes off during non-use of the catheter. In addition, the potential for occlusion of the catheter due to blood clots in the catheter and catheter related infection is substantially reduced. The pressure activated two-way slit valve assembly includes a first end, a second end, a wall defining a dumbbell shaped channel, and a flexible, thin disk having a slit and positioned within the pressure activated two-way slit valve assembly to reside within the dumbbell shaped channel. The slit and the dumbbell shaped channel are sized to enable the slit to deform in response to a predetermined pressure differential across the slit to allow fluid to pass therethrough.
    Type: Grant
    Filed: November 16, 2011
    Date of Patent: September 24, 2013
    Assignee: Navilyst Medical, Inc.
    Inventors: Harvey Robert Moorehead, Brian J. Bergeron
  • Patent number: 8529523
    Abstract: A valve for controlling material flow through a catheter, comprises a first flexible member including a first moveable element, wherein, when the first moveable element is in the open position, material may flow past the first flexible member through a first lumen of the catheter and, when the first moveable element is in the closed position, flow through the first lumen is prevented and a first biasing member coupled to the first flexible member for biasing the first moveable member toward the closed position.
    Type: Grant
    Filed: October 14, 2008
    Date of Patent: September 10, 2013
    Assignee: Navilyst Medical, Inc.
    Inventors: Karla Weaver, Jim Culhane
  • Patent number: 8523821
    Abstract: A device for transferring fluids between an internal structure in a living body and an exterior thereof comprises a housing including a pressure activated lumen extending to a distal end opening to a power injection lumen that extends to a distal port configured for connection to a fluid conduit extending to a target structure within the body and a pressure activated valve extending across the pressure activated lumen and controlling fluid flow therethrough, in combination with a proximal port coupled to the housing for movement between a first position in which a proximal end of the power injection lumen opens to the proximal port and a second position in which a proximal end of the pressure activated lumen opens to the proximal port.
    Type: Grant
    Filed: November 23, 2011
    Date of Patent: September 3, 2013
    Assignee: Navilyst Medical, Inc
    Inventor: Stephen C Miller
  • Publication number: 20130226145
    Abstract: A pressure activated valve comprises a valve housing defining a linen for receiving bodily fluids therein and a flexible membrane disposed in the valve housing. The flexible membrane includes a slit extending therethrough so that the flexible membrane may be moved between an open and a dosed configuration based on fluid pressure within the lumen. A nonthrombogenic coating may be formed on fluid contacting surfaces of the flexible membrane.
    Type: Application
    Filed: April 29, 2013
    Publication date: August 29, 2013
    Applicant: Navilyst Medical, Inc.
    Inventors: KARLA WEAVER, Paul DiCarlo
  • Patent number: 8454574
    Abstract: A pressure activated valve comprises a valve housing defining a lumen for receiving bodily fluids therein and a flexible membrane disposed in the valve housing. The flexible membrane includes a slit extending therethrough so that the flexible membrane may be moved between an open and a closed configuration based on fluid pressure within the lumen. A nonthrombogenic coating may be formed on fluid contacting surfaces of the flexible membrane.
    Type: Grant
    Filed: April 30, 2012
    Date of Patent: June 4, 2013
    Assignee: Navilyst Medical, Inc.
    Inventors: Karla Weaver, Paul DiCarlo
  • Publication number: 20120271247
    Abstract: A valve apparatus for medical applications, comprises a flexible member extending across a lumen through which a flow of materials is to be controlled. The flexible member includes a plurality of movable elements formed on opposite sides of a slit extending through the flexible member. The moveable members are biased so that when a pressure less than a predetermined threshold value is applied to the flexible member, the moveable elements are maintained in a closed position in which no flow is permitted past the flexible member and, when a pressure at least as great as the threshold value is applied to the flexible member, the moveable elements are moved to an open position separated from one another along the slit permitting flow through the lumen.
    Type: Application
    Filed: April 29, 2011
    Publication date: October 25, 2012
    Applicant: Navilyst Medical, Inc.
    Inventors: Karla Weaver, Jim Culhane
  • Publication number: 20120265173
    Abstract: An indwelling drainage catheter is disclosed that is configured to include spiral, helical or radial geometry on the external surface that allows the catheter to be introduced and locked into the anatomy via threading, linear indexing or similar action.
    Type: Application
    Filed: June 22, 2012
    Publication date: October 18, 2012
    Applicant: NAVILYST MEDICAL, INC.
    Inventors: George BOURNE, Raymond Lareau
  • Publication number: 20120256114
    Abstract: Pressure activated valves for catheters with improved tolerance of high pressure and high flow conditions are described. Embodiments of the valve comprise a flexible membrane with one or more linear slits therethrough, and means for applying tension to the flexible membrane in-line with the linear slits. The application of tension may optionally be facilitated by structural features of both the flexible membrane and the valve housing.
    Type: Application
    Filed: April 8, 2011
    Publication date: October 11, 2012
    Applicant: Navilyst Medical, Inc.
    Inventors: Marcia Buiser, Damon Casiello, Charles R. Aubin, Paul E. Karnafel
  • Publication number: 20120259291
    Abstract: An apparatus for providing access to a target site in a living body, comprises a first elongated member including a proximal opening to a first lumen and a branching point at a distal end thereof and a second lumen open to the first lumen at the branching point, the second lumen extending to a second lumen distal opening at a first connector, the first connector configured to engage a proximal end of a first lumen of a multi-lumen catheter in combination with a third lumen open to the first lumen at the branching point, the third lumen extending to a third lumen distal opening at a second connector, the second connector configured to engage a proximal end of a second lumen of a multi-lumen catheter.
    Type: Application
    Filed: April 6, 2011
    Publication date: October 11, 2012
    Applicant: Navilyst Medical, Inc.
    Inventors: Raymond Lareau, Stephen Engelhard, Eric Houde
  • Patent number: 8277425
    Abstract: A port for subcutaneous implantation, comprising a housing including first and second wells formed therein and a substantially F-shaped flow element including first and second lumens extending therethrough wherein, when in an operative configuration the F-shaped flow element is coupled to the housing with a proximal end of each of the lumens in fluid communication with a respective one of the first and second wells for receiving fluid therefrom, and wherein distal ends of each of the lumens form outlets, each outlet being coupleable to a lumen of a medical catheter, the F-shaped flow element including first and second arms extending from a trunk with the first lumen extending through the first arm to the trunk and the second lumen extending through the second arm to the trunk, the first and second lumens being separated from one another within the trunk.
    Type: Grant
    Filed: March 24, 2004
    Date of Patent: October 2, 2012
    Assignee: Navilyst Medical, Inc.
    Inventors: Mark Girard, Benjamin Bell, Todd Beaupre
  • Publication number: 20120245528
    Abstract: Disclosed is a catheter that includes a porous element. In one embodiment, the porous element comprises the same polymeric material as the catheter shaft. In another embodiment, the porous element comprises a porous polyurethane material.
    Type: Application
    Filed: March 22, 2011
    Publication date: September 27, 2012
    Applicant: Navilyst Medical, Inc.
    Inventors: Raymond Lareau, Benjamin Bell, Mark Girard