Stent Structure Patents (Class 623/1.15)
  • Patent number: 11559309
    Abstract: Devices and methods for treatment of a patient's vasculature are described. Embodiments may include a permeable implant having a radially constrained state configured for delivery within a catheter lumen, an expanded state, and a plurality of elongate filaments that are woven together. The permeable implant may include a stiffer proximal portion that is configured to sit at the neck of an aneurysm. The stiffer proximal portion may include coils, stiffening elements, or reinforcement elements disposed about or associated with the filaments or woven together with the filaments.
    Type: Grant
    Filed: March 12, 2020
    Date of Patent: January 24, 2023
    Inventors: Hussain S. Rangwala, William R. Patterson, Todd Hewitt
  • Patent number: 11534319
    Abstract: A growth stent and valve and methods for making and using the same. The growth stent and valve may be delivered to treat early stage congenital lesions, while expanding to adult vessel diameters. In selected embodiments, the growth stent and valve can comprise a frame and may have a covering on some portion to prevent blood flow through a wall of the frame. The growth stent and valve advantageously can maintain radial strength across an entire range of diameters necessary to treat a narrowed lesion from birth and childhood through adulthood as the vessels grow over the lifetime of a patient.
    Type: Grant
    Filed: February 17, 2022
    Date of Patent: December 27, 2022
    Assignee: Renata Medical, Inc.
    Inventors: Dustin Armer, Eason Abbott
  • Patent number: 11523920
    Abstract: A coronary stent is disclosed herein as having a lattice configuration on a generally thin-walled cylindrical tube. This particular stent is fabricated using an elongated thin-walled tubular solid that has a diameter equal to that of the final expanded configuration of the stent. In other words, the lattice configuration is cut onto the surface of the tubular solid that has a diameter substantially equal to the inner diameter of the blood vessel for which the stent is intended. The tubular lattice is then shrunk (collapsed) axisymmetrically to a new cylindrical configuration with a diameter substantially less than the blood vessel for which the stent is intended. The stent in its reduced diameter state can then be delivered to a desired site in the body via a catheter with an inflatable balloon at its distal portion. Upon the inflation of the balloon, the stent will assume its expanded, deployed configuration into the original diameter at the desired site in the body.
    Type: Grant
    Filed: March 16, 2018
    Date of Patent: December 13, 2022
    Inventor: Keyvon Rashidi
  • Patent number: 11517456
    Abstract: A stent graft includes a main body extending along a longitudinal axis when in a preinstalled configuration prior to insertion into a body of a patient. The stent graft also includes a mobile external coupling extending away from the main body and configured to align with a secondary blood vessel within the body to provide access thereto. The main body includes a plurality of stents extending thereabout. The stents include a first bracketing stent extending about a proximal side of the mobile external coupling, and a second bracketing stent located adjacent the first bracketing stent and extending about a distal side of the mobile external coupling. The first bracketing stent includes peaks that are aligned along a first axis, and the second bracketing stent includes peaks that are aligned along a second axis that diverges from the first axis relative to a circumferential direction toward the mobile external coupling.
    Type: Grant
    Filed: October 8, 2020
    Date of Patent: December 6, 2022
    Assignee: Medtronic Vascular, Inc.
    Inventors: Todd Malsbary, Sydney Gustafson, Justin Davison
  • Patent number: 11504231
    Abstract: A cardiac valve prosthesis including an armature for anchorage of the valve prosthesis at an implantation site. The armature defining a lumen for the passage of the blood flow and having a longitudinal axis, and a set of prosthetic valve leaflets supported by said armature and configured to move, under the action of blood flow, in a radially divaricated condition to enable the flow of blood through said lumen in a first direction, and in a radially contracted condition, in which said valve leaflets co-operate with one another and block the flow of blood through the prosthesis in the direction opposite said first direction.
    Type: Grant
    Filed: May 23, 2018
    Date of Patent: November 22, 2022
    Assignee: Corcym S.r.l.
    Inventors: Felice Giuseppe Carlino, Marco Bussone, Francesco Valle, Monica Francesca Achiluzzi
  • Patent number: 11497632
    Abstract: Disclosed herein is an anchor for use with a medical device. The anchor includes a coil, a barb, and a turn connecting the coil to the barb. The anchor may be made of a shape memory material. The coil may have a first handedness, and the turn may have a second handedness opposite the first handedness. The anchor may be attached to the medical device by a friction fit, in some cases without being attached by welding, soldering, adhesive, or crimping.
    Type: Grant
    Filed: July 29, 2019
    Date of Patent: November 15, 2022
    Inventors: Ryan Bradway, Charles Baxter
  • Patent number: 11484399
    Abstract: The present invention relates to a stent graft for implantation in vessels of a patient, wherein the stent graft has a hollow cylindrical main body made of a first prosthesis material, with a proximal end and a distal end, with a longitudinal axis c and a circumference u, at least one pocket element which is made of a second prosthesis material and which is mounted circumferentially on the outer face and/or inner face of the main body in order to form a circumferential closed pocket on a longitudinal portion of the main body, and at least one stent element which extends in a meandering formation around the main body and is received inside the pocket element.
    Type: Grant
    Filed: November 25, 2019
    Date of Patent: November 1, 2022
    Assignee: JOTEC GmbH
    Inventor: Stefan Derkvist
  • Patent number: 11478338
    Abstract: Pure compressed diamond (PCD), grown in a laboratory, is laser-shaped into dental implants with high tensile strength, high compressive strength, high thermal conductivity, and which are harder than any other substance on earth. PCD is harder than ceramic zirconia and harder than titanium. Because PCD is pure carbon, it is also 100% compatible with carbon-based living tissue. Unlike titanium, it does not provoke an immune response. PCD implants readily integrate into human jawbone. This drastically reduces post-surgery bone loss.
    Type: Grant
    Filed: May 12, 2021
    Date of Patent: October 25, 2022
    Inventor: Sachin Patel
  • Patent number: 11478348
    Abstract: Medical implants that include a containment layer surrounding, or surrounded by, a biodegradable medical device provide the benefit that pieces formed during degradation of the medical device are held within a constrained place and thus do not causes injury to a hosts.
    Type: Grant
    Filed: June 23, 2017
    Date of Patent: October 25, 2022
    Assignee: POLY-MED, INC.
    Inventors: Michael Scott Taylor, Jennifer Cartledge, Kenneth David Gray, Jr.
  • Patent number: 11471265
    Abstract: A stent graft comprises a plurality of wavy rings sequentially arranged in a spaced manner, and membranes fixed to the plurality of wavy rings, wherein the stent graft comprises, in a circumferential direction, at least one keel region and a non-keel region connected to the keel region, the keel region having an axial shortening rate that is less than that of the non-keel region, and the axial shortening rate of the keel region is 10-40%. The stent graft can be bent in all directions, and the keel region on the stent graft can provide a sufficient amount of an axial support force for the stent.
    Type: Grant
    Filed: December 11, 2018
    Date of Patent: October 18, 2022
    Assignee: Lifetech Scientific (Shenzhen) Co. Ltd.
    Inventors: Benhao Xiao, Caiping Liu, Da Li
  • Patent number: 11471309
    Abstract: The present disclosure relates to an intravascular stent, preparation method and use thereof, and the intravascular stent comprises a positioning segment and a supporting segment, the positioning segment comprising a plurality of first repeating elements, the supporting segment comprising at least two supporting units and at least one connecting unit, the supporting unit comprising a plurality of second repeating elements, the number of the first repeating elements differing from the number of the second repeating elements, a plane formed by front ends of the plurality of first repeating elements being vertical to or intersecting with the axis of the intravascular stent. The intravascular stent of the present disclosure is particularly suitable for iliac vein, with good supporting effect for iliac vein and less damage to venous wall, and can effectively avoid forming in-stent secondary thrombosis after intravascular stent implantation.
    Type: Grant
    Filed: May 19, 2020
    Date of Patent: October 18, 2022
    Inventors: Xiaotian Wang, Haiquan Feng, Xiaoqiang Li, Yonggang Wang
  • Patent number: 11464657
    Abstract: A dual opposing helical stent having a furled, small-diameter state and an expanded, large-diameter state. In the furled, small-diameter state, the stent includes a plurality of central lobes arranged at spaced-apart intervals and extending longitudinally defining a stent axis. The stent also includes peripheral lobes formed on the plurality of central lobes. The terminal ends of the stent are welded in a middle section of the stent. A method and technique for manufacturing the stent is also disclosed.
    Type: Grant
    Filed: November 18, 2020
    Date of Patent: October 11, 2022
    Inventor: Tré Raymond Welch
  • Patent number: 11446130
    Abstract: Described herein are implants (e.g., medical textiles/biotextiles) that include stitched gripping filaments to increase gripping, and methods of forming and using them. In some configurations these apparatuses may be configured as surgical grafts that may be used for soft tissue reconstruction, regeneration, or repair.
    Type: Grant
    Filed: March 9, 2020
    Date of Patent: September 20, 2022
    Assignee: TELA Bio, Inc.
    Inventors: E. Skott Greenhalgh, John-Paul Romano, Travis Speicher, Brendan Farrell
  • Patent number: 11439523
    Abstract: A stent having an improved anti-sliding function is proposed. The stent includes an inner stent and a pair of outer stents that have undergone heat treatment and have several spaces formed by weaving or crossing wires made of a superelastic shape memory alloy in a hollow cylindrical net shape, in which each of the outer stents is shorter than the inner stent and has an enlarged section having a diameter larger than the inner stent and a bending section formed by bending inward a side of the enlarged section; and the pair of outer stents are fitted on both ends of the inner stent such that the enlarged sections of the outer stents face each other, and spaces of the inner stent and spaces of the bending sections of the outer stents are connected by a connection thread, whereby a space section is defined between the inner stent and the outer stents.
    Type: Grant
    Filed: March 20, 2020
    Date of Patent: September 13, 2022
    Assignee: BCM Co., Ltd.
    Inventor: Byung Cheol Myung
  • Patent number: 11439729
    Abstract: An entirely or partially implantable medical product with a negatively charged surface for repulsing bacteria has a superficially bonded substance with a permanently negative excess charge, which substance is inert against cells of the human body and the bacteria contained therein.
    Type: Grant
    Filed: August 21, 2019
    Date of Patent: September 13, 2022
    Inventor: Peter Hildebrandt
  • Patent number: 11432925
    Abstract: A prosthesis retaining assembly for securing an implantable prosthesis to a catheter assembly can include a first member including a prosthesis retaining slot configured to retain a portion of the prosthesis. The retaining slot can have a first portion with a first width and a second portion with a second width. The first portion can be distal to the second portion. The second width can be larger than the first width, and the retaining slot can have an opening at a first surface of the first member. The prosthesis retaining assembly can also include a second member configured to be move relative to the first member. The second member can be configured to move to a position that obstructs a portion of the opening of the retaining slot.
    Type: Grant
    Filed: April 1, 2022
    Date of Patent: September 6, 2022
    Assignee: Medtronic Vascular Galway Unlimited Company
    Inventor: Noam Miller
  • Patent number: 11426294
    Abstract: The present invention discloses a degradable foldable biological amniotic membrane composite repair stent, comprising a tubular body with an axially extending through hole, the front end of the tubular body is provided with an elastic balloon, and the end of the tubular body is connected to a one-way valve which seals the through hole here, the outer face of the elastic balloon is coated with a foldable reticulated polylactic acid stent, the outer surface of the foldable reticulated polylactic acid stent is coated with a biological amniotic membrane, and there are a plurality of micropores on meshes of the foldable reticulated polylactic acid stent, the plurality of micropores are filled with biological amniotic membrane powder; in the initial state, the elastic balloon, the foldable reticulated polylactic acid stent, and the biological amniotic membrane are compressed into a tight state; in the use state, after being implanted in the body and expanded under pressure, it can conform to the lacrimal duct/uteri
    Type: Grant
    Filed: December 17, 2018
    Date of Patent: August 30, 2022
    Inventors: Chunyun Miao, Hu Lv, Chongjun Peng, Zhiqiang Teng
  • Patent number: 11406519
    Abstract: An aneurysm bridging device can be placed in the neurovasculature of a patient by advancing the aneurysm bridging device in a small-diameter configuration a delivery catheter to a target region within the neurovasculature and securing the distal region of the aneurysm bridging device to the neurovasculature. While the distal region of the aneurysm bridging device is secured to the neurovasculature, the proximal region of the aneurysm bridging device can be advanced to permit the aneurysm bridging device to expand from the small-diameter configuration and to deform and twist in a central region of the aneurysm bridging device. The proximal region of the aneurysm bridging device can be secured within the neurovasculature to maintain the central region of the aneurysm bridging device in a deformed state.
    Type: Grant
    Filed: March 12, 2020
    Date of Patent: August 9, 2022
    Assignee: COVIDIEN LP
    Inventors: Brian Strauss, Jeffrey Valko, Michael Henson, Robert Pecor
  • Patent number: 11395736
    Abstract: A prosthetic heart valve including a stent frame and a valve structure. The valve structure is disposed within a lumen of the stent frame. The stent frame is configured to self-expand from a compressed condition for transluminal delivery. The stent frame has a lattice structure forming a tubular shape defining a circumference and a plurality of closed cells arranged to define a band exhibiting a variable radial stiffness. The prosthesis can be deployed such that the band applies a minimal force on to anatomical locations relating to the heart's conductive pathways. A region of the band otherwise having low radial stiffness is located at or over a conductive pathway upon final implant.
    Type: Grant
    Filed: June 11, 2020
    Date of Patent: July 26, 2022
    Assignee: Medtronic Vascular Galway
    Inventors: Rodney Bell, Declan Costello
  • Patent number: 11389312
    Abstract: Stents that are adapted to be balloon expanded and include adjacent supports connected by connecting portions. The configurations, materials, and/or dimensions of at least one of the supports and connection portions allows the stents to be expanded to a greater extent, and optionally with reduced foreshortening.
    Type: Grant
    Filed: January 16, 2019
    Date of Patent: July 19, 2022
    Assignee: Sintra Medical LLC
    Inventors: Carlos Gabriel Alvarez, Jesus Romo Rico
  • Patent number: 11364135
    Abstract: A stent comprising a stent body and a plurality of cells is disclosed. Each cell includes two structural members extending in an undulating pattern. Each structural member includes a plurality of cell segments defining a plurality of peaks and valleys therebetween. A first segment and a second segment defining a first peak, the second segment and a third segment defining a first valley, the third segment and a fourth segment defining a second peak, the fourth segment and a fifth segment defining a second valley, the fifth segment and a sixth segment defining a third peak. The first peak, the second peak and the first valley include a first radius of curvature. The third peak and the second valley include a second radius of curvature. The first radius of curvature is larger than the second radius of curvature.
    Type: Grant
    Filed: June 22, 2018
    Date of Patent: June 21, 2022
    Assignee: COVIDIEN LP
    Inventors: Jeffrey H. Vogel, Paul Noffke, Zhiyong Zhang
  • Patent number: 11357571
    Abstract: To estimate the length of a stent implanted in a blood vessel after implantation of the stent.
    Type: Grant
    Filed: February 9, 2017
    Date of Patent: June 14, 2022
    Assignee: PENTAS Inc.
    Inventors: Shigeru Yoneyama, Hiroyuki Takao, Takashi Suzuki
  • Patent number: 11357649
    Abstract: Methods for securing strand ends of devices configured for insertion into an anatomical structure, and the resulting devices.
    Type: Grant
    Filed: May 27, 2021
    Date of Patent: June 14, 2022
    Assignee: IDev Technologies, Inc.
    Inventors: Jeffery Sheldon, Richard Booth, Kenneth M. Bueche
  • Patent number: 11344439
    Abstract: Implantable stents that include strips that are each comprised of main struts connected by first connectors, and adjacent strips are connected by second connectors. The strut connectors have a structure, including areas of expanded or reduced width or thickness, to account for venous applications. When used for venous applications, the stents convey benefit from configurations that improve flexibility (due to the greater elasticity of venous applications) while maintaining enough stiffness to resist pressure on the venous structure in selected areas (such as for the May-Thurner syndrome). The stents include particular structural characteristics that are particularly advantageous for (although not limited to) venous applications.
    Type: Grant
    Filed: November 1, 2019
    Date of Patent: May 31, 2022
    Assignee: Vesper Medical, Inc.
    Inventors: Michael A. Longo, William James Harrison
  • Patent number: 11337800
    Abstract: The disclosure relates to heart valve prostheses with the reduced need of pacemaker implantation and improved means for positioning the replacement heart valve. In one aspect of the present disclosure, the stent scaffold of the valve prosthesis includes axially extending locators. The locators may be positioned within the cusp of the native aortic valve. Placement of the locators within the cusps may prevent further proximal movement of the stent scaffold into the left ventricle. By adjusting the location of the proximal end of the locators with respect to the proximal end of the stent scaffold, infra-annular placement of the stent scaffold in the aortic annulus may be assured. In another aspect, means for visualizing the positioning of replacement heart valves at an implant site inside an individual's body is disclosed.
    Type: Grant
    Filed: July 10, 2020
    Date of Patent: May 24, 2022
    Assignee: JenaValve Technology, Inc.
    Inventors: Stefan Schreck, Hussain S. Rangwala, Payam Saffari
  • Patent number: 11331207
    Abstract: A stent according to the invention includes: a strut extending in a predetermined direction; a first protrusion provided on the strut, the first protrusion being substantially L-shaped and extending in a direction away from the strut and in a direction toward a distal side in the predetermined direction; a second protrusion that is provided on the strut and located distal to the first protrusion, the second protrusion being substantially L-shaped, extending in a direction away from the strut and in a direction toward a proximal side in the predetermined direction, and having a tip spaced apart from a tip of the first protrusion; and an opaque member being substantially tubular and highly opaque to radiation, the opaque member having two end portions in which the first and second protrusions are inserted, respectively.
    Type: Grant
    Filed: November 10, 2020
    Date of Patent: May 17, 2022
    Inventor: Hiroki Ishida
  • Patent number: 11324862
    Abstract: An endoluminal device includes a composite yarn with a polymer yarn and an alloy wire. The polymer yarn includes a biodegradable polymer, and the alloy wire includes a biocompatible alloy. An endoluminal device can include a plurality of polymer yarns and at least one alloy wire, in which the polymer yarns include a biodegradable polymer, and the least one alloy wire includes a biocompatible alloy. A surgical system or kit includes an endoluminal device and a delivery instrument.
    Type: Grant
    Filed: January 25, 2017
    Date of Patent: May 10, 2022
    Inventor: Jorge Calisse
  • Patent number: 11324613
    Abstract: A luminal endoprosthesis (1) at least partially delimits a prosthesis lumen (2), for implantation in an anatomical structure (3) that at least partially defines at least one cavity (4) and includes a pathological portion (13). The luminal endoprosthesis (1) includes two or more layers (5, 6, 7), at least one layer (5, 6, 7) having at least one threadlike element (8) forming an armor (9). The luminal endoprosthesis (1) includes an anchoring portion (10), for anchoring to an anatomical portion (11) of the walls of the cavity (4) of the anatomical structure (3). A working portion (12) faces the pathological portion (13) of the anatomical structure (3). The two or more layers (5, 6, 7) are separated from each other at least in the working portion (12) of the luminal endoprosthesis (1), avoiding connecting elements between one layer (5, 6, 7) and at least one adjacent layer.
    Type: Grant
    Filed: March 6, 2018
    Date of Patent: May 10, 2022
    Inventor: Alessandro Santo Bortone
  • Patent number: 11324614
    Abstract: A medical device includes a polymer stent (or scaffold) crimped to a catheter balloon. The stent, after being expanded from a crimped state by the balloon, provides a crush recovery of about 90% of its expanded diameter after being pinched or crushed by an amount equal to about 50% of the expanded diameter. The stent has a pattern including a W-shaped or W-V shaped closed cell and links connecting the closed cells.
    Type: Grant
    Filed: October 26, 2018
    Date of Patent: May 10, 2022
    Inventors: Mikael Trollsas, Michael H. Ngo, Boris Anukhin, Alexander Nikanorov, Syed Hossainy, John E. Papp, Dudley Jayasinghe, Zella Solter
  • Patent number: 11304795
    Abstract: A stent includes a tubular body formed of one or more interwoven wires, the tubular body having first and second opposing open ends and a lumen extending therebetween. The stent further includes a first anchor member disposed adjacent the first open end and a second anchor member disposed adjacent the second open end, the first and second anchor members each extending radially outward from the tubular body, the first and second anchor members each having an outer diameter larger than an outer diameter of the tubular body disposed between the first and second anchor members. A plurality of spacer members are disposed around the first open end and extending longitudinally beyond the first open end, wherein when a pulling force is applied to the spacer members, the outer diameter of the tubular body is not reduced.
    Type: Grant
    Filed: October 24, 2018
    Date of Patent: April 19, 2022
    Inventor: Martyn G. Folan
  • Patent number: 11298230
    Abstract: Apparatus, systems, and methods are provided for repairing heart valves through percutaneous transcatheter delivery and fixation of annuloplasty rings to heart valves. An annuloplasty ring includes an outer hollow body member including a plurality of regions. Adjacent regions cooperate with one another to change the body member from an elongate insertion geometry to an annular operable geometry. Adjacent regions are coupled by a biasing element or a stepped connector to allow expansion to an expanded state and contraction to a contracted state in the annular operable geometry. The annuloplasty ring also includes an internal anchor member located at least partially within the body member and having a plurality of anchors configured to attach the annuloplasty ring to tissue of a heart valve annulus. An angled ring closure lock allows coupling of the ends of an annuloplasty ring at an apex of a D-shape annular operable geometry.
    Type: Grant
    Filed: December 11, 2017
    Date of Patent: April 12, 2022
    Assignee: VALCARE, INC.
    Inventors: Samuel M. Shaolian, Jeffrey P. Dumontelle, Nadav Yellin, Victor S. Packham, Hung H. Cao
  • Patent number: 11298226
    Abstract: A prosthesis can include a collapsible, reexpandable frame comprising first, second, and third sets of struts that define first and second rows of expandable cells. In some embodiments, the struts of the first, second, and third set of struts can be tapered. In some embodiments, the frame can include an intermediate section and an inflow section that is proximal to the intermediate section. The inflow section can include a concave saddle portion that is adjacent the intermediate section, and an outwardly flared portion.
    Type: Grant
    Filed: March 12, 2020
    Date of Patent: April 12, 2022
    Inventors: Padraig Savage, Joseph Callol, Alaena Destefano, Joshua Dwork, Devin Gosal, Karan Punga, Finn Rinne, Billy Tam
  • Patent number: 11278391
    Abstract: An implantable graft may include a main section having walls formed with a woven fabric, the main section having a main lumen extending therethrough. The implantable graft may also include a bifurcated section having walls formed with the woven fabric, where the bifurcated section extends from main section, where the bifurcated section includes a first branch and a second branch, and where the first branch and the second branch each include a branch lumen in fluid communication with the main lumen. At least one branch of the bifurcated section may include a branch taper formed by a seam connecting a first woven layer and a second woven layer. A seam extension may extend outwardly along the seam of the branch taper, the seam extension being a single-layer woven structure.
    Type: Grant
    Filed: August 28, 2019
    Date of Patent: March 22, 2022
    Assignee: Cook Medical Technologies LLC
    Inventor: Ruwan Sumanasinghe
  • Patent number: 11259943
    Abstract: An endoprosthesis has an expanded state and an unexpanded state, the endoprosthesis includes a stent, wherein the stent has a first end, a second end, an inner surface defining a lumen, an outer surface, and a thickness defined between the inner surface and the outer surface; and a stent end covering disposed at one of the first and second ends, the stent end covering including a polymeric coating that includes a base and a plurality of protrusions, the base including a first major surface facing the outer surface of the stent, the base further including a second major surface from which each of the plurality of protrusions extends outwardly, the first major surface opposing the second major surface, wherein the protrusions are arranged in a micropattern. Methods of making and using an endoprosthesis are provided.
    Type: Grant
    Filed: June 12, 2019
    Date of Patent: March 1, 2022
    Inventors: Laura Elizabeth Firstenberg, Sean P. Fleury
  • Patent number: 11248282
    Abstract: Magnesium alloy containing, in % by mass, 1.0 to 2.0% of Zn, 0.05 to 0.80% by mass of Zr, 0.05 to 0.40% by mass of Mn, and the balance consisting of Mg and unavoidable impurities. The magnesium alloy may further contain, in % by mass, 0.005% or more and less than 0.20% of Ca.
    Type: Grant
    Filed: July 9, 2019
    Date of Patent: February 15, 2022
    Assignees: FUJI LIGHT METAL CO., LTD., Japan Medical Device Technology Co., LTD.
    Inventors: Hironori Ueda, Masashi Inoue, Makoto Sasaki
  • Patent number: 11236442
    Abstract: The invention relates to an electrospinning apparatus and method of use thereof.
    Type: Grant
    Filed: March 13, 2014
    Date of Patent: February 1, 2022
    Assignee: LIFENET HEALTH
    Inventors: Michael Francis, Andy Pritchard, Nathan Kemper
  • Patent number: 11229541
    Abstract: Methods, apparatuses and systems are described for stent delivery and positioning to cover an access site. The method may include delivering the stent through an access site in a wall of the body lumen. In some cases, the method may include repositioning the stent within the body lumen to at least partially cover the access site with the stent. The stent may be repositioned within the body lumen by retracting the stent towards the access site such that a proximal portion of the stent at least partially covers the access site. The stent may then expand within the body lumen. In some cases, the stent may expand within the body lumen by releasing a primary constrainment member from the stent by pulling the primary constrainment member in a proximal direction away from the stent.
    Type: Grant
    Filed: January 8, 2019
    Date of Patent: January 25, 2022
    Assignee: Covidien LP
    Inventors: John O. McWeeney, Hillary K. Huszar, Mark A. Maguire, Shawn C. Daniel, Thomas Pham, Madeline A. Mannion, Olivia P. Metcalf
  • Patent number: 11229538
    Abstract: A delivery system (100) for a bifurcated stent (200) is described having a stem (226) and a pair of arms (220, 222), comprising a delivery catheter (110) comprising an elongated first tube (102) having a proximal end (20) and a distal end (30) and a bifurcated part (114) at the distal end (30) configured to accommodate the arms (220, 222), wherein a longitudinal slit (140) disposed on the bifurcated part (114) is configured for releasable passage of the bifurcated stent (200) therethrough. A method for delivery of the bifurcated stent to a site of treatment using the delivery system (100) is also described.
    Type: Grant
    Filed: January 10, 2018
    Date of Patent: January 25, 2022
    Inventors: Omer Faruk Eker, Kamil Jerzy Chodzynski
  • Patent number: 11206992
    Abstract: Wireless, variable inductance and resonant circuit-based vascular monitoring devices, systems, methodologies, and techniques, including specifically configured anchoring structures for same, are disclosed that can be used to assist healthcare professionals in predicting, preventing, and diagnosing various heart-related and other health conditions.
    Type: Grant
    Filed: September 11, 2020
    Date of Patent: December 28, 2021
    Assignee: Foundry Innovation & Research 1, Ltd.
    Inventors: Fiachra M. Sweeney, Hanson S. Gifford, III, Jessi Johnson, Pablo Martin, Shriram Raghunathan, Stephen Sheridan, Douglas S. Sutton, Friedrich Wetterling, Conor M. Hanley, Sean Quinlan
  • Patent number: 11207448
    Abstract: Provided is a biodegradable polymer coating stent effective in delaying the damage of physical properties (particularly radial force) of a core structure. The stent includes a core structure of a bioabsorbable material (e.g., Mg), a first coating layer of a first polymer with biodegradability, and a second coating layer of a second polymer with biodegradability, wherein the first coating layer covers the whole surface of the core structure; the second coating layer covers a part or the whole surface of the first coating layer; the first polymer has a glass transition point of lower than 37° C.; and the second polymer has a glass transition point of 47° C. or higher.
    Type: Grant
    Filed: May 24, 2018
    Date of Patent: December 28, 2021
    Inventors: Makoto Sasaki, Takuro Niidome, Zhen Yu Jin, Shuzo Yamashita
  • Patent number: 11207178
    Abstract: A prosthetic heart valve can include a valve frame having a wireform portion and a stent portion. The wireform and stent portions can be undetachably coupled together via a plurality of upright struts so as to form a one-piece prosthetic heart valve frame. Alternatively, a self-expanding wireform portion and a balloon-expandable stent portion can be coupled together via one or more leaflets and a subassembly having a flexible leaflet support stent and a sealing ring. The wireform portion can include cusps and commissures configured to support a plurality of leaflets. The prosthetic valve can be radially collapsible for minimally invasive and/or transcatheter delivery techniques. Disclosed embodiments can also provide flexion of the wireform portion (e.g., of the commissures) in response to physiologic pulsatile loading when the valve is implanted in a patient's native valve annulus. Methods of making and using prosthetic heart valves are also disclosed.
    Type: Grant
    Filed: August 10, 2020
    Date of Patent: December 28, 2021
    Assignee: Edwards Lifesciences Corporation
    Inventor: Brian S. Conklin
  • Patent number: 11191655
    Abstract: A compound stent device includes a first stent portion and a second stent portion, where the second stent portion is formed from a biodegradable material, and the first stent portion is formed from either non-biodegradable material or is biodegradable significantly more slowly than the second portion. The compound stent device is deformable from a first diameter to a second larger diameter. Immediately after expansion, the first stent portion and the second stent portion cooperate to provide a first contact area of support for a length of a surrounding vessel. After decomposition of the second stent portion, the first stent portion provides a second contact area of support for the length of the surrounding vessel which is at least 10 percent smaller than the first contact area.
    Type: Grant
    Filed: July 31, 2019
    Date of Patent: December 7, 2021
    Assignee: BIOSERT LTD.
    Inventors: Avraham Shekalim, Noam Peleg
  • Patent number: 11191630
    Abstract: Vascular filters and deflectors and methods for filtering bodily fluids. A blood filtering assembly can capture embolic material dislodged or generated during an endovascular procedure to inhibit or prevent the material from entering the cerebral vasculature. A blood deflecting assembly can deflect embolic material dislodged or generated during an endovascular procedure to inhibit or prevent the material from entering the cerebral vasculature.
    Type: Grant
    Filed: October 29, 2018
    Date of Patent: December 7, 2021
    Assignee: Claret Medical, Inc.
    Inventors: Cameron Paul Purcell, Antony J. Fields, Whittaker Ian Hamill, Daniel Wayne Fifer
  • Patent number: 11191654
    Abstract: A joining arrangement between a main tube (3) and a side arm (5) in a side arm stent graft (1). The side arm (5) is stitched into an aperture (11) in the main tube and is in fluid communication with it. The aperture is triangular, elliptical or rectangular and the side arm is cut off at an angle to leave an end portion having a circumferential length equal to the circumference of the aperture. The side arm can also include a connection socket (76) comprising a first resilient ring (79) around the arm at its end, a second resilient ring (80) spaced apart along the arm from the first ring and a zig zag resilient stent (82) between the first and second rings. The zig-zag resilient stent can be a compression stent. Both the main tube and the side arm are formed from seamless tubular biocompatible graft material.
    Type: Grant
    Filed: June 26, 2019
    Date of Patent: December 7, 2021
    Assignee: Cook Medical Technologies LLC
    Inventor: David Ernest Hartley
  • Patent number: 11185405
    Abstract: The present invention relates to a radially collapsible frame (1) for a prosthetic valve, the frame (1) comprising an outflow end region (3) at a proximal end of the frame (1) and an inflow end region (2) at a distal end of the frame (1), opposite to the outflow end region (3). The frame (1) further includes at least two radially spaced commissure attachment regions (10, 10?, 10?) and a cell structure (30), composed of a plurality of lattice cells being arranged radially around a flow axis of the frame (1) and connecting the at least two commissure attachment regions (10, 10?, 10?). Finally, at least one anchoring/positioning arch (20, 20?, 20?) is provided, wherein said at least one anchoring/positioning arch (20, 20?, 20?) radially overlaps the cell structure (30) at least partially.
    Type: Grant
    Filed: August 27, 2019
    Date of Patent: November 30, 2021
    Assignee: JenaValve Technology, Inc.
    Inventors: Michael J. Girard, Martin Schlun
  • Patent number: 11169142
    Abstract: In some embodiments, the invention provides a method for identifying a patient suffering from or suspected of suffering in from a disease associated with the cardiovascular system that is having a subnormal response to the treatment for the disease comprising: subjecting a blood sample from a patient being treated for a disease to a viscoelastic analysis in the presence of a known amount of a thrombolytic agent, to obtain a coagulation characteristic value of the patient; and comparing the coagulation characteristic value of the patient to a coagulation characteristic value of a healthy individual, wherein a difference in the coagulation characteristic value of the patient as compared to the coagulation characteristic value of the healthy individual identifies the patient as a patient having a subnormal response to treatment.
    Type: Grant
    Filed: May 11, 2017
    Date of Patent: November 9, 2021
    Assignee: The Regents of the University of Colorado, a body corporate
    Inventor: Michael P. Chapman
  • Patent number: 11160654
    Abstract: Apparatus and method are described including identifying a subject as suffering from a condition that causes the subject to have elevated central venous pressure. In response thereto, a device is placed inside the subject's vena cava such that an upstream end of the device is placed at a location upstream of junctions of the vena cava with all of the subject's renal veins. The device defines a passage through the device, at least a portion of the passage converging in a direction from an upstream end of the device to downstream end of the device. Other applications are also described.
    Type: Grant
    Filed: February 12, 2019
    Date of Patent: November 2, 2021
    Inventor: Yosi Tuval
  • Patent number: 11160506
    Abstract: This invention relates to an implantable device for a physiologic sensor, comprising an implantable expandable anchor, a bridge on which the sensor is secured, as well as an optional adapting ring. The invention also relates to a method of monitoring bodily functions using the anchor and sensor. The anchor is compressed and the bridge assumes an elongated shape during delivery to a target lumen. Upon deployment at the target site, the anchor expands and the bridge bows into the interior lumen of the expanded anchor, distancing the sensor from the vessel wall. This invention also relates to a method of manufacturing said device and a method of implanting a sensor.
    Type: Grant
    Filed: February 20, 2019
    Date of Patent: November 2, 2021
    Assignee: Microtech Medical Technologies Ltd
    Inventors: Yekaterina Dlugach, Nadav Agian
  • Patent number: 11154287
    Abstract: A stent retractor has a radially flexibly expandable tubular sheath divided in the peripheral direction into at least two sections, specifically a reinforcing section and an expanding section, with radial flexibilities that differ from one another, these sections being interconnected integrally. The stent retractor includes axial segments that are connected by a puzzle-type connection allowing simple separation or length adjustment in the axial direction (including when in situ) while also being made integrally, for example by a laser or water jet cutting method, preferably from a tubular blank.
    Type: Grant
    Filed: September 27, 2017
    Date of Patent: October 26, 2021
    Assignee: AESCULAP AG
    Inventors: Jens Beger, Susanne Klingseis, Christian Grimm, Mario Serpa
  • Patent number: 11147696
    Abstract: A multilayer bioresorbable stent having sustained drug delivery is disclosed herein. The bioresorbable stent releases a therapeutic substance from the body of the bioresorbable stent starting when the bioresorbable stent is implanted within an anatomical lumen and ending when the entire mass of the bioresorbable stent is no longer present within the anatomical lumen. The bioresorbable stent releases the therapeutic substance gradually during the treatment as the mass of the each layer of the bioresorbable stent erodes. Methods of making the therapeutic layers within the bioresorbable sent are further disclosed. Sustained drug delivery reduces the risk of late and very late stent thrombosis.
    Type: Grant
    Filed: January 5, 2018
    Date of Patent: October 19, 2021
    Inventors: John James Scanlon, Catherine Ann Scanlon