Having Variable Diameter Patents (Class 623/1.3)
  • Patent number: 10213289
    Abstract: A valve to perform lung volume reduction procedures is described. The valve is formed of a braided structure that is adapted for endoscopic insertion in a bronchial passage of a patient's lung. The braided structure has a proximal end and a distal end and is covered with a non porous coating adapted to prevent flow of air into the. A constricted portion of the braided structure is used to prevent flow of air through a central lumen of the structure, and to define at least one funnel shaped portion. The funnel shaped portion blocks the flow of air towards the constriction, i.e. towards the core of the lung. At least one hole is formed in the braided structure to permit flow of mucus from the distal end to the proximal end, to be expelled out of the lungs.
    Type: Grant
    Filed: February 15, 2017
    Date of Patent: February 26, 2019
    Assignee: Boston Scientific Scimed, Inc.
    Inventor: Claude Clerc
  • Patent number: 9320623
    Abstract: Methods and apparatuses of stents with likely reduced rates of tissue perforation are provided. Some embodiments include reducing the profile of a portion of the stent using a wire profile reduction electropolishing bath and/or other wire profile reduction means.
    Type: Grant
    Filed: October 3, 2012
    Date of Patent: April 26, 2016
    Assignee: Cook Medical Technologies LLC
    Inventors: Michael Ryan, James Michael Carlson
  • Patent number: 9168161
    Abstract: The present invention relates to tissue-supporting medical devices and drug delivery systems, and more particularly to tubular flexible stents that are implanted within a body lumen of a living animal or human to support the organ, maintain patency and/or deliver drugs or agents. The tubular flexible stent has a cylindrical shape defining a longitudinal axis and includes a helical section having of a plurality of longitudinally oriented strut members and a plurality of circumferentially oriented hinge members connecting circumferentially adjacent strut members to form a band. The band is wrapped about the longitudinal axis in a substantially helical manner to form a plurality of helical windings. At least one connector member extends between longitudinally adjacent helical windings of the band.
    Type: Grant
    Filed: February 2, 2010
    Date of Patent: October 27, 2015
    Inventors: Ryan Donovan, John F. Shanley, Prasanna Muralidharan, David W. Overaker, Ramesh Marrey, Robert Burgermeister
  • Publication number: 20150088239
    Abstract: A flow reducing implant for reducing blood flow in a blood vessel having a cross sectional dimension, the flow reducing implant comprising a hollow element adapted for placement in the blood vessel defining a flow passage therethrough, said flow passage comprising at least two sections, one with a larger diameter and one with a smaller diameter, wherein said smaller diameter is smaller than a cross section of the blood vessel. A plurality of tabs anchor, generally parallel to the blood vessel wall, are provided in some embodiments of the invention.
    Type: Application
    Filed: October 3, 2014
    Publication date: March 26, 2015
    Applicant: Neovasc Medical Ltd.
    Inventors: Shmuel Ben-Muvhar, Ilan Shalev, Jonathan Tsehori, Nissim Darvish
  • Patent number: 8932344
    Abstract: A prosthetic aortic conduit (1) for use during surgery on the aorta of a patient. The conduit includes an elongate tubular portion (10) extending along a longitudinal axis (11) between a first conduit terminal end (12) and a second conduit terminal end (13). The first conduit terminal end (12) is configured with two substantially U-shaped tongues (21, 22) extending away from the tubular portion (10) generally along the longitudinal axis (11). Each of the tongues (21, 22) is appropriately sized to together collectively approximate the shape of the scalloped bicuspid valve annulus. The second conduit terminal end (13) is configured with three substantially U-shaped tongues (31, 32, 33) extending away from the tubular portion (10) generally along the longitudinal axis (11). Each of the tongues (31, 32, 33) is appropriately sized to together collectively approximate the shape of the scalloped tricuspid valve annulus.
    Type: Grant
    Filed: April 29, 2011
    Date of Patent: January 13, 2015
    Assignee: Coroneo, Inc.
    Inventors: Anthony Paolitto, Valerio Velentini
  • Patent number: 8911491
    Abstract: A stent graft extends in a flow lumen to span a defective portion of the flow lumen and seal the defective portion from further blood contact. The stent graft includes a pair of apertures, from which extensions project into the renal arteries to seal the passage of blood into the renal arteries from the abnormality. The apertures are larger than the opening of the renal arteries, such that the apertures need not be centered with the renal arteries to enable placement of the extensions. The aperture opening and side branch extensions contain hook and loop structures to provide a variably positionable seal of the aperture opening.
    Type: Grant
    Filed: September 2, 2005
    Date of Patent: December 16, 2014
    Assignee: Medtronic Vascular, Inc.
    Inventors: Curtis Hanson, Scott Cook, Joseph Lessar
  • Patent number: 8870944
    Abstract: A two valve caval stent for functional replacement of an incompetent tricuspid valve. The device is designed for minimally invasive percutaneous transcatheter placement and includes two stents connected by a bridge sized to span the right atrium, and two valves anchored by the stents in the superior and inferior vena cavas. Each of the valves optionally has a conical shape divided by supporting struts into three cusps that simulate the action of a native tricuspid valve.
    Type: Grant
    Filed: January 24, 2012
    Date of Patent: October 28, 2014
    Assignee: Cook Medical Technologies LLC
    Inventors: Jan Sochman, Jan Peregrin
  • Patent number: 8852268
    Abstract: A medical implant for the expansion and support of a body vessel is formed as elongate struts in a shape of a tube. The struts are plastically deformable at least in sections so that the implant remains permanently expanded in the radial direction transversely to a longitudinal axis of the struts in the expanded state. A course of the expandable element has a plurality of direction changes with respect to the longitudinal axis. The expandable element has a constriction point in the contracted state designed as an intended breaking point for the expandable element. The constriction point breaks upon application of excessive force applied in the radial direction preventing further expansion of the expandable element.
    Type: Grant
    Filed: September 16, 2009
    Date of Patent: October 7, 2014
    Assignee: Bentley Surgical GmbH
    Inventor: Milisav Obradovic
  • Publication number: 20140277370
    Abstract: A stent for use in a medical procedure having opposing sets of curved apices, where the curved section of one set of apices has a radius of curvature that is greater than the curved section of the other set of apices. One or more such stents may be attached to a graft material for use in endovascular treatment of, for example, aneurysm, thoracic dissection, or other body vessel condition.
    Type: Application
    Filed: June 2, 2014
    Publication date: September 18, 2014
    Applicant: Cook Medical Technologies LLC
    Inventors: David Brocker, William K. Dierking, Alan R. Leewood, Timothy A.M. Chuter, Blayne A. Roeder, Steven J. Charlesbois, Richard A. Swift, Sharath Gopalakrishnamurthy, Matthew Huser, Jarin Kratzberg, Erik E. Rasmussen, Bent Oehlenschlaeger, Kim Møgelvang Jensen
  • Patent number: 8834558
    Abstract: A flexible stent and method for performing a stent within a lumen proximate to a target area is provided. The stent includes a tubular member having proximal and distal ends, where at least a portion of the tubular member is capable of being positioned proximate to the target area. The stent also includes a plurality of stabilization members defined circumferentially about at least a portion of the tubular member, wherein each stabilization member extends inwardly to define an inner diameter that is less than an inner diameter of the tubular member within the tubular member. As a result, the stabilization members are capable of reducing migration of the stent within the lumen and the incident of infolding of the tubular member.
    Type: Grant
    Filed: April 25, 2006
    Date of Patent: September 16, 2014
    Assignee: Merit Medical Systems, Inc.
    Inventor: Thomas Nissl
  • Patent number: 8834344
    Abstract: A cannulation system for cardiac support uses an inner cannula disposed within an outer cannula. The outer cannula includes a fluid inlet for placement within the right atrium of a heart. The inner cannula includes a fluid inlet extending through the fluid inlet of the outer cannula and the atrial septum for placement within at least one of the left atrium and left ventricle of the heart. The cannulation system also employs a pumping assembly coupled to the inner and outer cannulas to withdraw blood from the right atrium for delivery to the pulmonary artery to provide right heart support, or to withdraw blood from at least one of the left atrium and left ventricle for delivery into the aorta to provide left heart support, or both.
    Type: Grant
    Filed: September 9, 2013
    Date of Patent: September 16, 2014
    Assignee: Maquet Cardiovascular LLC
    Inventors: Walid Najib Aboul-Hosn, Jodi Akin, Michael Guidera, William R. Kanz, Robert G. Matheny
  • Patent number: 8814928
    Abstract: An apparatus for repairing an aneurysm comprises a device having an inner graft tube and an inflatable outer balloon attached to an outer surface of the inner graft tube, and an inflatable deployment balloon. The inner graft tube is expandable within an artery to form a seal with the arterial wall above and/or below an aneurysm. The outer balloon is inflatable within the aneurysm with a rapidly settable substance to fill the aneurysm and support the device. The deployment balloon has an uninflated condition to fit within the inner graft tube and is inflatable within the inner graft tube to expand the inner graft tube within the artery and to maintain the inner graft tube expanded within the artery during inflation of the outer balloon.
    Type: Grant
    Filed: November 12, 2009
    Date of Patent: August 26, 2014
    Assignee: Vortex Innovation Limited
    Inventor: Marie Therese Robin
  • Patent number: 8801776
    Abstract: Described is a prosthetic valve assembly comprising: a radially self-expandable stent configured to expand to bear against a wall of a native body lumen; and an implantable prosthetic valve, having a diameter, the valve being mounted inside the stent; wherein the diameter of the stent is greater than the diameter of the prosthetic valve.
    Type: Grant
    Filed: February 24, 2009
    Date of Patent: August 12, 2014
    Assignee: Medtronic Vascular, Inc.
    Inventors: Morgan House, Philipp Bonhoeffer, Nasser Rafiee, Rany Huynh Busold, Nareak Douk, Juan-Pablo Mas, Stuart MacDonald, Michael Finney
  • Patent number: 8795221
    Abstract: A bypass device for influencing blood pressure, including an implant with a volumetric chamber, having a connector or connecting means for connecting the volumetric chamber to a natural cardiovascular system, and having an adaptor or adaptation means, by which a change in volume of a volume of the volumetric chamber is enabled or effected upon a pressure change in the cardiovascular system or in the volumetric chamber. According to this invention, a change in volume in a lower pressure range between 50 mmHg and a pressure threshold value amounting to at least 100 mmHg amounts to at most 10 cm3, and in an upper pressure range between the pressure threshold value and 150 mmHg amounts to at least 10 cm3. With the device according to this invention, high blood pressure can be reduced in a carefully directed way.
    Type: Grant
    Filed: November 5, 2010
    Date of Patent: August 5, 2014
    Assignee: E.S. Bio-Tech Limited
    Inventor: Mirko Doss
  • Patent number: 8790398
    Abstract: A method of making a replacement heart valve device whereby a fragment of biocompatible tissue material is treated and soaked in one or more alcohol solutions and a solution of glutaraldehyde. The dried biocompatible tissue material is folded and rehydrated in such a way that forms a two- or three-leaflet/cusp valve without affixing of separate cusps or leaflets or cutting slits into the biocompatible tissue material to form the cusps or leaflets. After the biocompatible tissue material is folded, it is affixed at one or more points on the outer surface to the inner cavity or a stent.
    Type: Grant
    Filed: December 20, 2013
    Date of Patent: July 29, 2014
    Assignee: Colibri Heart Valve LLC
    Inventors: David Paniagua, R. David Fish
  • Patent number: 8771341
    Abstract: A bridging device for supporting occlusive masses within an aneurysm located at a vascular bifurcation.
    Type: Grant
    Filed: October 8, 2012
    Date of Patent: July 8, 2014
    Assignee: Reverse Medical Corporation
    Inventors: Brian M. Strauss, Jeffrey J. Valko, Michael R. Henson, Robert A. Pecor
  • Patent number: 8747453
    Abstract: A stent/stent graft for reinforcement of vascular abnormalities and an associated method are provided. According to on embodiment, the stent/stent graft includes a flexible tubular structure comprising proximal and distal ends and having a heat set configuration. The tubular structure is configured to engage a lumen upstream and downstream of a vascular abnormality, such as an aneurysm, and a portion between the proximal and distal ends of the tubular structure is configured to engage the aneurysm.
    Type: Grant
    Filed: February 18, 2008
    Date of Patent: June 10, 2014
    Assignee: AGA Medical Corporation
    Inventors: Kurt Amplatz, John C. Oslund, Patrick Russo, Xiaoping Gu
  • Patent number: 8728152
    Abstract: A woven aortic sinus prosthesis has a first substantially cylindrical section position away from a patient's heart, which optionally passes into an aortic arch of the patient, a second section having a greater diameter than the first section and forming a bulb, which second section is connected to the first section, and optionally a third substantially cylindrical section close to the heart, which is connected to the bulb section, wherein the prosthesis is continuously woven and has a constant number of warp yarns over its axial length, whereby there is a greater distance between the warp yarns in a region of the bulb section than in the first and third cylindrical sections.
    Type: Grant
    Filed: October 19, 2007
    Date of Patent: May 20, 2014
    Assignee: Aesculap AG
    Inventors: Helmut Goldmann, Christof Merckle, Hans-Hinrich Sievers
  • Patent number: 8715338
    Abstract: A luminal endoprosthesis for treating aneurysms, particularly aneurysms located at an arterial bifurcation. One feature of the endoprosthesis is a tubular armature that can expand radially from a compressed state to an expanded state. A further feature of the endoprosthesis, when in the expanded state, is a lenticular head whom axis coincides with that of the tubular armature, and which can be inserted into an aneurysm pocket. A method of manufacturing such an endoprosthesis is also described.
    Type: Grant
    Filed: May 30, 2005
    Date of Patent: May 6, 2014
    Inventor: Noureddine Frid
  • Patent number: 8672989
    Abstract: An endoluminal prosthesis system deployable in a region of a patient's vasculature having one or more branch vessels, having a main graft body having a first opening in a wall portion of the main graft body and a pre-loaded guidewire positioned inside the main graft body and advanced through the first opening. One or more branch grafts can be attached to the main graft body to cover one or more openings in the main graft body.
    Type: Grant
    Filed: July 11, 2012
    Date of Patent: March 18, 2014
    Assignee: Endologix, Inc.
    Inventors: Stefan G. Schreck, Joshua Benjamin, Kevin Mayberry
  • Patent number: 8672997
    Abstract: A valve with a structural member and valve leaflets that provide a sinus.
    Type: Grant
    Filed: April 24, 2012
    Date of Patent: March 18, 2014
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: William J. Drasler, Mark L. Jensen, Jason P. Hill, David J. Sogard, Patrick A. Haverkost, Susan M. Shoemaker
  • Patent number: 8652201
    Abstract: A method is provided for treating a cardiovascular disease, such as pulmonary arterial hypertension, an arrhythmia, or heart failure. One step of the method includes providing an apparatus. The apparatus includes an expandable support member having oppositely disposed proximal and distal end portions and a main body portion extending between the end portions. The proximal end portion includes a plurality of wing members extending from the main body portion. At least a portion of the expandable support member is treated with at least one therapeutic agent for eluting into a blood vessel. The expandable support member is inserted into the pulmonary vasculature and then advanced to a bifurcation in the pulmonary vasculature. The bifurcation includes the intersection of a first pulmonary vessel, a second pulmonary vessel, and a third pulmonary vessel. The expandable support member is secured at the bifurcation to treat pulmonary arterial hypertension, for example.
    Type: Grant
    Filed: January 22, 2009
    Date of Patent: February 18, 2014
    Assignee: The Cleveland Clinic Foundation
    Inventors: Carlos Oberti, Jose L. Navia, Richard Krasuski
  • Patent number: 8632584
    Abstract: A medical implant, having a proximal and a distal end, that is preformed to assume a superimposed structure at an implantation site but can be made to take on a volume-reduced form making it possible to introduce it by means of a micro-catheter and a guide wire arranged at the proximal end, with the implant in its superimposed structure assuming the form of a longitudinally open tube and having a mesh structure of interconnected strings or filaments. The implant has a tapering structure at its proximal end where the strings or filaments converge at a connection point.
    Type: Grant
    Filed: November 5, 2007
    Date of Patent: January 21, 2014
    Assignee: Dendron GmbH
    Inventors: Hans Henkes, Achim Flesser, Ronald Kontek, Jürgen Speder, Ralph Bodenburg
  • Patent number: 8617235
    Abstract: The invention relates generally to expandable medical implants for maintaining support of a body lumen and, in particular, to an axially nested, diametrically expandable, slide and lock vascular device for enlarging an occluded portion of a vessel. The axially nested vascular device desirably achieves both competitive crossing profiles while maintaining other key features, such as, for example, radial strength and luminal patency. The collapsed profile can also be made very thin without compromising radial strength. Thus, the vascular device can advantageously be deployed in small and difficult to reach areas or vessels. The axial nesting substantially eliminates radial overlap between mating structural elements thereby desirably allowing for a low, uniform profile.
    Type: Grant
    Filed: March 28, 2011
    Date of Patent: December 31, 2013
    Assignee: REVA Medical, Inc.
    Inventors: Eric V. Schmid, John D. Nguyen, Orlando Padilla, Andrew Morris, Daniel Moore, Thomas R. Jackson
  • Patent number: 8540615
    Abstract: A cannulation system for cardiac support uses an inner cannula disposed within an outer cannula. The outer cannula includes a fluid inlet for placement within the right atrium of a heart. The inner cannula includes a fluid inlet extending through the fluid inlet of the outer cannula and the atrial septum for placement within at least one of the left atrium and left ventricle of the heart. The cannulation system also employs a pumping assembly coupled to the inner and outer cannulas to withdraw blood from the right atrium for delivery to the pulmonary artery to provide right heart support, or to withdraw blood from at least one of the left atrium and left ventricle for delivery into the aorta to provide left heart support, or both.
    Type: Grant
    Filed: July 29, 2010
    Date of Patent: September 24, 2013
    Assignee: Maquet Cardiovascular LLC
    Inventors: Walid Najib Aboul-Hosn, William R. Kanz, Jodi Akin, Michael Guidera, Robert G. Matheny
  • Patent number: 8511310
    Abstract: The present invention, in an exemplary embodiment, provides a therapeutic medical appliance, delivery device and method of use. In particular, plug therapeutic medical appliances are provided that allow for the interventional treatment of pulmonary disorders such as defects characterized by pulmonary blebs and/or diffused destructive parenchymal disease. The plug therapeutic medical appliances themselves combine many of the excellent characteristics of both silicone and metal therapeutic medical appliances while eliminating the undesirable ones. In particular, these therapeutic medical appliances are preferably self-expanding in nature and allow the predetermined differential selection of relative hardness/softness of regions of the therapeutic medical appliance to provide additional patient comfort. An exemplary embodiment also provides a family of delivery devices that facilitate flexibility, durability and/or proper installation of one or more medical appliances in a single procedure.
    Type: Grant
    Filed: June 21, 2010
    Date of Patent: August 20, 2013
    Assignee: Merit Medical Systems, Inc.
    Inventors: Jason Reynolds, Tony D. Alexander, Ji Hwan You
  • Publication number: 20130204351
    Abstract: The present invention provides methods and apparatus for the endoluminal positioning of an intraluminal prosthesis at a target location within a body lumen. The device may comprise a porous, multi-layer prosthesis that can include several different tubular mesh components such as an everted tubular component, an tubular component that expands to various different sizes, a bifurcated tubular component, and a tubular component with an undulating expanded shape, among others. Various components can have different densities or pore sizes and can be overlaid on each other to selectively block different regions of a vessel.
    Type: Application
    Filed: February 4, 2013
    Publication date: August 8, 2013
    Applicant: Inceptus Medical LLC
    Inventor: Inceptus Medical LLC
  • Publication number: 20130116769
    Abstract: An expandable stent is implanted in a body lumen, such as a coronary artery, peripheral artery, or other body lumen for treating an area of vulnerable plaque. The invention provides for a an intravascular stent having a plurality of cylindrical rings connected by undulating links. The stent has a high degree of flexibility in the longitudinal direction, yet has adequate vessel wall coverage and radial strength sufficient to hold open an artery or other body lumen. A central section is positioned between distal and proximal sections and is aligned with the area of vulnerable plaque to enhance growth of endothelial cells over the fibrous cap of the vulnerable plaque to reinforce the area and reduce the likelihood of rupture.
    Type: Application
    Filed: December 27, 2012
    Publication date: May 9, 2013
    Applicant: ADVANCED CARDIOVASCULAR SYSTEMS, INC.
    Inventor: ADVANCED CARDIOVASCULAR SYSTEMS, INC.
  • Patent number: 8414637
    Abstract: A stent having a transitional section positioned between a middle section with different struts lengths and circumferentially non-aligned peaks, and a symmetrical section that has equal strut lengths and circumferentially aligned peaks.
    Type: Grant
    Filed: January 5, 2007
    Date of Patent: April 9, 2013
    Assignee: Boston Scientific Scimed, Inc.
    Inventor: Paul F. Chouinard
  • Publication number: 20130053943
    Abstract: Lumen support devices and methods of their use are provided. A lumen support includes one or more plastically deformable cells having two stable configurations with no stable configurations between the two stable configurations. The lumen support device may be plastically deformed to other stable configurations.
    Type: Application
    Filed: August 27, 2012
    Publication date: February 28, 2013
    Inventors: Andy Edward Denison, Kent C.B. Stalker
  • Patent number: 8372110
    Abstract: The invention relates to a medical implant in the form of an elongated helix wherein at least one part of the helix is preformed in such a manner that it has a secondary structure of identically sized loops which it assumes during implantation at the placement site, with said structure in turn forming at the placement site during implantation a polyhedral tertiary structure, and the polyhedron being provided with at least one additional loop.
    Type: Grant
    Filed: December 29, 2010
    Date of Patent: February 12, 2013
    Assignee: Covidien LP
    Inventors: Hermann Monstadt, Hans Henkes, Achim Flesser, Ralf Hannes
  • Patent number: 8361140
    Abstract: A stent has a plurality of expansion columns that extend in a radial direction to form a circumference of the stent and interconnected in the axial direction to form an overall axial length of the stent. Each expansion column has a plurality of first cells and a plurality of second cells that alternates along the expansion column with at least one first cell. Each first cell has at least two facing walls extending in the radial direction that have a first width. The second cells each have at least two facing walls that extend in the radial direction which have a second with greater than the first width. The first cell uses less force to open than the second cell, but upon opening provides increased radial strength by creating a substantially vertical cell wall.
    Type: Grant
    Filed: December 29, 2010
    Date of Patent: January 29, 2013
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: Michael P. Meyer, Alison Julson
  • Publication number: 20120290067
    Abstract: Described herein are flexible implantable devices or stents that can conform to the shape of vessels of the neurovasculature. In some embodiments, the devices can direct blood flow within a vessel away from an aneurysm or limit blood flow to the aneurysm. In some embodiments, a vascular remodeling device includes a first section and a protruding section. During deployment, the device expands from a compressed configuration to an expanded configuration. The first section anchors the device in an afferent vessel and/or in an efferent vessel of a bifurcation and the protruding section is positioned in the junction of the bifurcation having an aneurysm and across the neck of the aneurysm or at least partially within the aneurysm.
    Type: Application
    Filed: May 11, 2012
    Publication date: November 15, 2012
    Applicant: TYCO HEALTHCARE GROUP LP
    Inventors: Anh Cam, Michael Louis Losordo, Jianlu Ma, Xiaoling Zhao
  • Publication number: 20120191170
    Abstract: A graft useable with a blood flow device that allows the use of a single blood flow device to simultaneously provide blood flow to the systemic and pulmonary circulations. The graft has a tubular inlet portion coupleable to the outlet of the blood-flow assist device and configured to receive blood flow therethrough. A tubular systemic portion is connected to the inlet portion and configured to be connected to the systemic circulation of the patient to direct the first portion of the blood flow into the systemic circulation at a first flow rate. The graft has a tubular pulmonary portion connected to the inlet portion and configured to be connected to the pulmonary circulation of the patient to direct a second portion of the blood flow into the pulmonary circulation substantially simultaneous with delivery of the first portion of the blood flow into the systemic circulation.
    Type: Application
    Filed: January 25, 2012
    Publication date: July 26, 2012
    Inventor: Gordon Cohen
  • Patent number: 8226704
    Abstract: A stent for insertion in a fluid conduit of a human or animal body when the stent is in a collapsed condition and for expansion to an expanded condition, includes an outer wall for engagement with the conduit. The outer wall has a helical portion which in the expanded condition extends longitudinally and circumferentially, and which, upon expansion of the stent from the collapsed condition to the expanded condition, resists extension.
    Type: Grant
    Filed: March 18, 2004
    Date of Patent: July 24, 2012
    Assignee: Veryan Medical Limited
    Inventors: Colin G. Caro, Nicholas V. Watkins, Brian G. Falzon, Philip L. Birch
  • Patent number: 8226710
    Abstract: A heart valve prosthesis is provided having a self-expanding multi-level frame that supports a valve body comprising a skirt and plurality of coapting leaflets. The frame transitions between a contracted delivery configuration that enables percutaneous transluminal delivery, and an expanded deployed configuration having an asymmetric hourglass shape. The valve body skirt and leaflets are constructed so that the center of coaptation may be selected to reduce horizontal forces applied to the commissures of the valve, and to efficiently distribute and transmit forces along the leaflets and to the frame. Alternatively, the valve body may be used as a surgically implantable replacement valve prosthesis.
    Type: Grant
    Filed: March 25, 2011
    Date of Patent: July 24, 2012
    Assignee: Medtronic Corevalve, Inc.
    Inventors: Than Nguyen, Hung Nguyen, Mykim Nguyen, Stanley Komatsu, Robrecht Michiels
  • Patent number: 8152786
    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: November 7, 2006
    Date of Patent: April 10, 2012
    Assignee: Osprey Medical, Inc.
    Inventors: James Edward Shapland, Tuan Minh Doan, Mark Francis Brown
  • Patent number: 8133277
    Abstract: A medical device which defines a lumen for flowing a bodily fluid from an upstream end of the device to a downstream end thereof is disclosed. The device has a luminal wall (14) that extends between the upstream and downstream ends and defines the lumen within which the fluid flows. The wall exhibits a succession of protuberances spaced from each other along the length of the device. Each protuberance has a flank facing upstream (54) and a flank facing downstream (64), the flank facing upstream extending into the fluid flow so that a radially outermost part of the flow of fluid from the upstream to the downstream end of the device impinges on the upstream flank and is thereby caused to reverse its flow, and flow upstream from the upstream flank to the downstream flank of the next adjacent protuberance upstream, creating micro-vortices between two adjacent protuberances.
    Type: Grant
    Filed: October 21, 2005
    Date of Patent: March 13, 2012
    Assignee: Bard Peripheral Vascular, Inc.
    Inventors: Hans Scholz, Karen Petzold, Ulf Kruger
  • Patent number: 8128682
    Abstract: Medical devices for implantation in a body vessel, and methods of using and making the same, are provided. A medical device includes a support frame having struts and a weakened frame portion, and a remodelable material tensionably attached to the support frame. The weakened frame portion has a first configuration in which the support frame has a first outward radial force and a second configuration in which the support frame has a second, lesser outward radial force. The remodelable material restricts expansion of the frame from a radially compressed configuration to a radially expanded configuration when the weakened frame portion is in the first configuration. The remodelable material can form one or more valve leaflets adapted to regulate fluid flow in a body vessel, such as a vein.
    Type: Grant
    Filed: May 11, 2010
    Date of Patent: March 6, 2012
    Assignee: Cook Medical Technologies LLC
    Inventors: Brian C. Case, Jacob A. Flagle, Ram H. Paul, Jr., Sean D. Chambers
  • Patent number: 8075613
    Abstract: An implantable endoluminal prosthesis for replacing a damaged aortic valve is provided. In one embodiment, the prosthesis includes a balloon-expandable stent, a tubular conduit that extends into the ascending aorta, and a self-expanding stent. The tubular conduit extends across the balloon-expandable stent. The tubular conduit includes an artificial valve. The self-expanding stent extends across the tubular conduit into the ascending aorta. The balloon-expandable stent, the tubular conduit, and the self-expanding stent are coupled to provide unidirectional flow of fluid into the aorta and further into the coronary arteries. Also provided is a method for implanting the endoluminal prosthesis.
    Type: Grant
    Filed: November 4, 2008
    Date of Patent: December 13, 2011
    Assignee: Cook Medical Technologies LLC
    Inventor: Timothy A M Chuter
  • Patent number: 8057396
    Abstract: Devices for assessing the size, shape, and topography of vessel lumens and hollow portions of organs are described. The devices are particularly adapted for determining the size, shape, topography, and compliance of the native heart valves to facilitate the later implantation of a prosthetic heart valve. The devices are typically catheter-based having an assessment mechanism fixed to a distal end of the catheter. The assessment mechanism generally includes an expandable member, such as a balloon. The assessment mechanism may also include an imaging member, a physical assessment member, an electronic mapping construction, an alignment mechanism, a valvuloplasty balloon, or any combination thereof.
    Type: Grant
    Filed: May 7, 2010
    Date of Patent: November 15, 2011
    Assignee: Phoenix Biomedical, Inc.
    Inventors: David C. Forster, Brian Beckey, Brandon Walsh, Scott Heneveld
  • Patent number: 8043361
    Abstract: A tubular endoprosthesis including a polymeric material is disclosed. The endoprosthesis has a collapsed position that can be reverted to a first expanded position larger than the collapsed position by heating to a first temperature subsequent to insertion of the endoprosthesis into a cavity or lumen in a mammal. The endoprosthesis can be further expanded to a second expanded position within the cavity or lumen.
    Type: Grant
    Filed: December 10, 2004
    Date of Patent: October 25, 2011
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: Paul Dicarlo, Ilya Yampolsky
  • Patent number: 8034099
    Abstract: A generally tubular, cylindrical stent prosthesis has an unexpanded delivery configuration and an expanded configuration for contacting the vessel wall. The stent prosthesis has a plurality of adjacent stent struts, each stent strut having a wavelike or sinusoidal pattern of straight segments and crowns. A Y-shaped member is attached to one or more crowns to cause the crowns to flare outwardly at an angle from the cylindrical stent body when the stent is expanded. Upon expansion of the stent, the crown(s) having Y-shaped members attached thereto are angled with respect to the longitudinal axis and radially flare from the cylindrical stent body. The flared crowns anchor the stent within the vessel by protruding into the vessel wall and/or seating the stent within an ostium.
    Type: Grant
    Filed: March 27, 2008
    Date of Patent: October 11, 2011
    Assignee: Medtronic Vascular, Inc.
    Inventor: Gianfranco Pellegrini
  • Patent number: 8021414
    Abstract: A stent in a non-expanded state has a first and second expansion column, each consisting of a plurality of expansion strut pairs. An expansion strut pair includes a first expansion strut, a second expansion strut and a joining strut that couples the first and second expansion struts at one end. Expansion strut pairs include expansion strut pair first and second corners formed where the joining strut couples the first and second expansion struts. A connecting strut column, formed of a plurality of connecting struts couples the first and second expansion columns. Connecting struts include a proximal section, a distal section and an intermediate section. The proximal section is coupled to the corner of an expansion strut pair of the first expansion column, and the distal section is coupled to the joining strut of an expansion strut pair of the second expansion column intermediate the expansion strut pair first corner and the expansion strut pair second corner.
    Type: Grant
    Filed: July 25, 2002
    Date of Patent: September 20, 2011
    Assignee: Boston Scientific Scimed, Inc.
    Inventor: G. David Jang
  • Patent number: 7951192
    Abstract: The present invention is directed to a stent for use in a bifurcated body lumen having a main branch and a side branch. The stent comprises a radially expandable generally tubular stent body having proximal and distal opposing ends with a body wall having a surface extending therebetween. The surface has a geometrical configuration defining a first pattern, and the first pattern has first pattern struts and connectors arranged in a predetermined configuration. The stent also comprises a branch portion comprised of a second pattern, wherein the branch portion is at least partially detachable from the stent body.
    Type: Grant
    Filed: August 25, 2009
    Date of Patent: May 31, 2011
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: Amnon Yadin, Hans Valencia
  • Patent number: 7951189
    Abstract: A venous valve with a frame and valve leaflets that provide a sinus pocket. The venous valve provides for unidirectional flow of a liquid through the valve.
    Type: Grant
    Filed: July 27, 2009
    Date of Patent: May 31, 2011
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: Patrick A. Haverkost, Jason P. Hill, Susan M. Shoemaker
  • Publication number: 20110106234
    Abstract: An interluminal medical treatment device configured to treat a targeted treatment site within a body lumen is provided. The interluminal medical treatment device can include an elongated generally tubular outer member. The outer member can include an expandable distal portion, an expandable proximal portion, and a central portion of limited expandability. The interluminal medical treatment device can include at least one membrane. The outer member and at least one membrane may define a housing area positioned between the proximal portion and distal portion of the outer member. The outer member and at least one membrane can be configured to redirect fluid flow within a body lumen away from the housing area inner member or inner passageway.
    Type: Application
    Filed: October 30, 2009
    Publication date: May 5, 2011
    Inventor: Axel Grandt
  • Patent number: 7919108
    Abstract: This disclosure relates to implantable medical devices coated with a taxane therapeutic agent, such as paclitaxel, in one or more solid form(s) having varying dissolution rates. Particularly preferred coatings comprise amorphous and/or solvated solid forms of taxane therapeutic agents that provide durable coatings that release the taxane over a desired period of time, which can be varied in the absence of a polymer by selecting the type and amount of solid forms of the taxane therapeutic agent in the coating. Other preferred embodiments relate to methods of coating medical devices and methods of treatment. The coatings can provide a sustained release of the taxane therapeutic agent within a body vessel without containing a polymer to achieve the desired rate of paclitaxel elution.
    Type: Grant
    Filed: March 8, 2007
    Date of Patent: April 5, 2011
    Assignees: Cook Incorporated, MED Institute Inc.
    Inventors: Priscilla Reyes, William F. Moore, Patrick H. Ruane, Darin G. Schaeffer, Melinda S. Morrell
  • Publication number: 20110077730
    Abstract: A bifurcated stent assembly having a main branch balloon incorporating a sheath associated with the outer wall of the balloon, the sheath having a frangible or separable portion which allows for a guide wire to be passed through the sheath and to be separated from the sheath and the balloon when desired. When the balloon is expanded, the top and bottom edges of the sheath which are associated with the balloon are forced away from each other and cause the frangible or separable portion to separate, allowing the guide wire to be separated from the sheath and the balloon.
    Type: Application
    Filed: September 30, 2009
    Publication date: March 31, 2011
    Inventor: Michael S. Fenster
  • Publication number: 20110046719
    Abstract: A luminal endoprosthesis for treating aneurysms, particularly aneurysms located at an arterial bifurcation. One feature of the endoprosthesis is a tubular armature that can expand radially from a compressed state to an expanded state. A further feature of the endoprosthesis, when in the expanded state, is a lenticular head whom axis coincides with that of the tubular armature, and which can be inserted into an aneurysm pocket. A method of manufacturing such an endoprosthesis is also described.
    Type: Application
    Filed: May 30, 2005
    Publication date: February 24, 2011
    Inventor: Noureddine Frid