Patents Assigned to Navilyst Medical
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Patent number: 8894629Abstract: 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: GrantFiled: October 18, 2011Date of Patent: November 25, 2014Assignee: Navilyst Medical, Inc.Inventors: Raymond J. Lareau, Benjamin D. Bell
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Patent number: 8801696Abstract: 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: GrantFiled: October 30, 2009Date of Patent: August 12, 2014Assignee: Navilyst Medical, Inc.Inventors: Richard Graffam, Ben Morris, Chuck Bourgeois
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Patent number: 8790329Abstract: 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: GrantFiled: April 29, 2013Date of Patent: July 29, 2014Assignee: Navilyst Medical, Inc.Inventors: Karla Weaver, Paul DiCarlo
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Publication number: 20140200521Abstract: 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: ApplicationFiled: January 11, 2013Publication date: July 17, 2014Applicant: Navilyst Medical, Inc.Inventors: Karla Weaver, Paul D. DiCarlo
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Patent number: 8753320Abstract: 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: GrantFiled: July 5, 2011Date of Patent: June 17, 2014Assignee: Navilyst Medical, Inc.Inventor: Stephen C. Miller
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Patent number: 8726931Abstract: 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: GrantFiled: April 8, 2011Date of Patent: May 20, 2014Assignee: Navilyst Medical, Inc.Inventors: Marcia Buiser, Damon Casiello, Charles R. Aubin, Paul E. Karnafel
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Publication number: 20140058332Abstract: 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: ApplicationFiled: November 1, 2013Publication date: February 27, 2014Applicant: Navilyst Medical, Inc.Inventors: George Bourne, James Culhane
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Patent number: 8603067Abstract: A catheter that comprises a hub, an elongated conduit, and at least one lumen therein. The lumen includes a proximal lumen section, a distal lumen section, and an intermediate lumen section extending between the proximal and distal lumen sections. The cross-sectional dimension of the intermediate lumen section is less than the cross-sectional dimension of the distal lumen section. In one embodiment, the cross-sectional dimension of the intermediate lumen section is less than the cross-sectional dimension of the proximal lumen section. In certain embodiments, the lumen tapers from the distal and/or proximal lumen sections to the intermediate lumen section.Type: GrantFiled: May 17, 2012Date of Patent: December 10, 2013Assignee: NaviLyst MedicalInventors: Raymond Lareau, Benjamin Bell, Mark Girard
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Patent number: 8585660Abstract: 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: GrantFiled: January 25, 2006Date of Patent: November 19, 2013Assignee: Navilyst Medical, Inc.Inventor: Nathan Murphy
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Patent number: 8540685Abstract: 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: GrantFiled: November 16, 2011Date of Patent: September 24, 2013Assignee: Navilyst Medical, Inc.Inventors: Harvey Robert Moorehead, Brian J. Bergeron
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Patent number: 8540663Abstract: 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: GrantFiled: July 2, 2008Date of Patent: September 24, 2013Assignee: Navilyst Medical, Inc.Inventors: Christopher T. Davey, Michael R. Sansoucy, Matthew N. McCarthy
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Patent number: 8529523Abstract: 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: GrantFiled: October 14, 2008Date of Patent: September 10, 2013Assignee: Navilyst Medical, Inc.Inventors: Karla Weaver, Jim Culhane
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Patent number: 8523821Abstract: 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: GrantFiled: November 23, 2011Date of Patent: September 3, 2013Assignee: Navilyst Medical, IncInventor: Stephen C Miller
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Publication number: 20130226145Abstract: 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: ApplicationFiled: April 29, 2013Publication date: August 29, 2013Applicant: Navilyst Medical, Inc.Inventors: KARLA WEAVER, Paul DiCarlo
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Patent number: 8454574Abstract: 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: GrantFiled: April 30, 2012Date of Patent: June 4, 2013Assignee: Navilyst Medical, Inc.Inventors: Karla Weaver, Paul DiCarlo
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Publication number: 20120271247Abstract: 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: ApplicationFiled: April 29, 2011Publication date: October 25, 2012Applicant: Navilyst Medical, Inc.Inventors: Karla Weaver, Jim Culhane
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Publication number: 20120265173Abstract: 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: ApplicationFiled: June 22, 2012Publication date: October 18, 2012Applicant: NAVILYST MEDICAL, INC.Inventors: George BOURNE, Raymond Lareau
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Publication number: 20120256114Abstract: 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: ApplicationFiled: April 8, 2011Publication date: October 11, 2012Applicant: Navilyst Medical, Inc.Inventors: Marcia Buiser, Damon Casiello, Charles R. Aubin, Paul E. Karnafel
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Publication number: 20120259291Abstract: 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: ApplicationFiled: April 6, 2011Publication date: October 11, 2012Applicant: Navilyst Medical, Inc.Inventors: Raymond Lareau, Stephen Engelhard, Eric Houde
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Patent number: 8277425Abstract: 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: GrantFiled: March 24, 2004Date of Patent: October 2, 2012Assignee: Navilyst Medical, Inc.Inventors: Mark Girard, Benjamin Bell, Todd Beaupre