Patents by Inventor William E. Cohn

William E. Cohn has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11590322
    Abstract: Systems and methods for positioning a wire for advancement through a vessel wall, and advancing it through one or more vessel walls, generally include a delivery catheter and an alignment catheter or a receiving catheter, and a guidewire. In some variations, the systems and methods may be used to bypass an occlusion or other barrier that may prevent advancement of a wire or tools through an endoluminal space. In these variations, the systems and methods include a delivery catheter, a bypass catheter, a receiving catheter, and a guidewire. The delivery and receiving catheters each generally include a side aperture, a deflection surface, and an alignment element, and the bypass catheter generally includes two side apertures, two deflectors, and two alignment elements. In some variations, the systems and methods may assist in treatment of a patient suffering from critical limb ischemia.
    Type: Grant
    Filed: June 29, 2018
    Date of Patent: February 28, 2023
    Assignee: TVA Medical, Inc.
    Inventors: William E. Cohn, Thomas D. Pate, Philip M. Tetzlaff
  • Patent number: 11517437
    Abstract: A cardiac device for implantation proximate an exterior of a heart, the cardiac device including an inflatable bladder including an inner wall and an outer wall, wherein the inner wall itself is more expandable than the outer wall itself such that the inflatable bladder itself is configured to deform substantially inwardly to exert localized pressure against a region of the heart when the inflatable bladder is positioned adjacent the region of the heart and inflated.
    Type: Grant
    Filed: July 26, 2019
    Date of Patent: December 6, 2022
    Assignee: DiaxaMed, LLC
    Inventors: Aaron J. Hjelle, William E. Cohn, Richard F. Schroeder, James F. Buck, Karl R. Leinsing
  • Publication number: 20220378579
    Abstract: Devices and methods for providing localized pressure to a region of a patient's heart to improve heart functioning, including: (a) a jacket made of a flexible biocompatible material, the jacket having an open top end that is received around the heart and a bottom portion that is received around the apex of the heart; and (b) at least one inflatable bladder disposed on an interior surface of the jacket, the inflatable bladder having an inelastic outer surface positioned adjacent to the jacket and an elastic inner surface such that inflation of the bladder causes the bladder to deform substantially inwardly to exert localized pressure against a region of the heart.
    Type: Application
    Filed: August 8, 2022
    Publication date: December 1, 2022
    Inventors: Aaron J. Hjelle, William E. Cohn, Richard F. Schroeder, James F. Buck, Karl R. Leinsing
  • Publication number: 20220354497
    Abstract: A device is configured for use in negative pressure wound therapy (NPWT). The device includes a tube having a tube proximal end and a tube distal end and A coil having a plurality of windings extending from a coil proximal end to a coil distal end. The coil distal end is coupled to the tube proximal end in a manner that enables application of a negative pressure from within the coil through the coil to tissue surrounding the coil. The coil comprises a space between adjacent ones of the plurality of windings, the space having a predetermined dimension.
    Type: Application
    Filed: May 2, 2022
    Publication date: November 10, 2022
    Inventors: Frank Richard Cichocki, JR., Scott J. Sloss, John A. Killion, Jared R. Mortus, William E. Cohn, Tushar Sharma, Gabriel Jacinto
  • Patent number: 11406500
    Abstract: Devices and methods for providing localized pressure to a region of a patient's heart to improve heart functioning, including: (a) a jacket made of a flexible biocompatible material, the jacket having an open top end that is received around the heart and a bottom portion that is received around the apex of the heart; and (b) at least one inflatable bladder disposed on an interior surface of the jacket, the inflatable bladder having an inelastic outer surface positioned adjacent to the jacket and an elastic inner surface such that inflation of the bladder causes the bladder to deform substantially inwardly to exert localized pressure against a region of the heart.
    Type: Grant
    Filed: August 8, 2019
    Date of Patent: August 9, 2022
    Assignee: DiaxaMed, LLC
    Inventors: Aaron J. Hjelle, William E. Cohn, Richard F. Schroeder, James F. Buck, Karl R. Leinsing
  • Publication number: 20220175562
    Abstract: Described here are devices, systems, and methods for cannulating a vessel. Generally, the method may comprise advancing a stent into a first vessel and deploying the stent in the first vessel to hold open one or more valves. This may permit retrograde blood flow through the blood vessel in peripheral vasculature and aid in cannulation of the blood vessel.
    Type: Application
    Filed: February 23, 2022
    Publication date: June 9, 2022
    Applicant: TVA Medical, Inc.
    Inventors: Thomas D. Pate, William E. Cohn
  • Patent number: 11350944
    Abstract: A novel catheter-based system which ligates the left atrial appendage (LAA) on the outside of the heart, preferably using a combination of catheters and/or instruments, e.g., a guide catheter positioned inside the left atrial appendage which may assist in locating the left atrial appendage and/or assist in the optimal placement of a ligature on the outside of the appendage, and a ligating catheter and/or instrument outside the heart in the pericardial space to set a ligating element at the neck of the left atrial appendage.
    Type: Grant
    Filed: June 12, 2019
    Date of Patent: June 7, 2022
    Assignee: SENTREHEART LLC
    Inventors: John R. Liddicoat, William E. Cohn, Roger Laham
  • Publication number: 20220151617
    Abstract: Described here are methods of treating a patient having hypertension comprising advancing a catheter into a deep ulnar vein or an artery, wherein the catheter comprises an electrode. The methods further comprise forming a fistula between the deep ulnar vein and the artery with the electrode to reduce a blood pressure of the patient.
    Type: Application
    Filed: November 18, 2021
    Publication date: May 19, 2022
    Inventors: Adam L. BERMAN, William E. COHN, Dana R. MESTER, Damian A. JELICH, Thomas D. PATE, Philip M. TETZLAFF
  • Patent number: 11285028
    Abstract: Described here are devices, systems, and methods for cannulating a vessel. Generally, the method may comprise advancing a stent into a first vessel and deploying the stent in the first vessel to hold open one or more valves. This may permit retrograde blood flow through the blood vessel in peripheral vasculature and aid in cannulation of the blood vessel.
    Type: Grant
    Filed: July 19, 2017
    Date of Patent: March 29, 2022
    Assignee: TVA MEDICAL, INC.
    Inventors: Thomas D. Pate, William E. Cohn
  • Publication number: 20210401579
    Abstract: Devices and methods for providing localized pressure to a region of a patient's heart to improve heart functioning. The devices include a cardiac jacket made of a flexible biocompatible material and at least one inflatable bladder disposed on an interior surface of the jacket. Inflation of the bladder causes the bladder to expand to exert localized pressure against a region of the heart. In some cases, a phase-change material is filled into the bladder as a liquid and the material solidifies at body temperature. In some cases, a positioning tool is used prior to the implantation of the jacket in order to determine effective positions for the inflatable bladder(s) to be located on the heart to improve heart functioning.
    Type: Application
    Filed: April 25, 2019
    Publication date: December 30, 2021
    Inventors: Eugene Andrew Grossi, William E. Cohn, George Gellert, Aaron J. Hjelle
  • Patent number: 11207070
    Abstract: Described here are devices and methods for treating hypertension by forming a fistula between two blood vessels to reduce blood pressure of a patient. The fistula may be formed using a catheter having an electrode that is placed in a first blood vessel. In some instances, a desired amount of blood pressure is determined. In other instances, the hypertension is drug resistant hypertension.
    Type: Grant
    Filed: February 14, 2020
    Date of Patent: December 28, 2021
    Assignee: TVA Medical, Inc.
    Inventors: Adam L. Berman, William E. Cohn, Dana R. Mester, Damian A. Jelich, Thomas D. Pate, Philip M. Tetzlaff
  • Publication number: 20210369344
    Abstract: Described here are devices, systems and methods for forming a fistula between two blood vessels. Generally, the systems may comprise a first catheter which may comprise a fistula-forming element. The fistula-forming element may comprise one or more electrodes, mechanical cutting elements, laser sources, or combinations thereof, and may be used to assist in fistula formation. In some instances, a system may comprise a second catheter, which may comprise a fistula-forming element. One or more of the catheters may comprise one or more markers, magnetic alignment elements, and/or one shape-changing elements.
    Type: Application
    Filed: June 8, 2021
    Publication date: December 2, 2021
    Applicant: TVA Medical, Inc.
    Inventors: Gary H. Miller, Adam L. Berman, William E. Cohn, Dana R. Mester, Damian A. Jelich
  • Publication number: 20210369343
    Abstract: Described here are devices, systems and methods for forming a fistula between two blood vessels. Generally, the systems may comprise a first catheter which may comprise a fistula-forming element. The fistula-forming element may comprise one or more electrodes, mechanical cutting elements, laser sources, or combinations thereof, and may be used to assist in fistula formation. In some instances, a system may comprise a second catheter, which may comprise a fistula-forming element. One or more of the catheters may comprise one or more markers, magnetic alignment elements, and/or one shape-changing elements.
    Type: Application
    Filed: June 8, 2021
    Publication date: December 2, 2021
    Applicant: TVA Medical, Inc.
    Inventors: Gary H. Miller, Adam L. Berman, William E. Cohn, Dana R. Mester, Damian A. Jelich
  • Patent number: 11173296
    Abstract: A medical devices and methods related thereto are disclosed. In an embodiment, the medical device including a pump configured to be inserted within an atrium of a heart, said pump comprising an inlet and an outlet. In addition, the pump includes a flexible outflow conduit coupled to the outlet and configured to carry blood. The outflow conduit includes a radially inner surface defining a throughbore, and a radially outer surface. Further, the pump comprises a driveline configured to conduct control and power signals between the pump and an external device. The driveline extends through the outflow conduit between the radially inner surface and the radially outer surface.
    Type: Grant
    Filed: February 23, 2017
    Date of Patent: November 16, 2021
    Assignee: Texas Heart Institute
    Inventors: Oscar H. Frazier, William E. Cohn
  • Patent number: 11160677
    Abstract: A method is used to reduce a volume of a stomach of a patient. The method includes inverting a portion of a stomach wall to thereby create an inverted portion. An expandable member is positioned adjacent to the outer surface of the inverted portion. The expandable member is expanded to thereby expand the inverted portion. The expanded expandable member has a first outer diameter. A base region of the inverted portion is cinched to thereby capture the expanded expandable member in the expanded inverted portion. The expanded expandable member has a first outer diameter. Expanding and cinching provide a cinch diameter to first outer diameter ratio from approximately 0.5:1 to approximately 0.9:1.
    Type: Grant
    Filed: September 5, 2018
    Date of Patent: November 2, 2021
    Assignee: Ethicon, Inc.
    Inventors: Bethany F. Grant, Shin-Yir C. Tong, John V. Hunt, Jennifer M. Nagy, Elliott J. Fegelman, Kevin S. Weadock, William E. Cohn, Terry D. Daglow, Nicholas B. Van Stolk, David L. Hamann
  • Publication number: 20210267675
    Abstract: Described here are devices, systems, and methods for forming a fistula between two blood vessels. The systems may comprise a first catheter including a housing and an electrode having a proximal end and a distal end. The proximal end is fixed relative to the housing and the distal end is longitudinally slidable within the housing.
    Type: Application
    Filed: May 4, 2021
    Publication date: September 2, 2021
    Inventors: Thomas D. Pate, Dana R. Mester, William E. Cohn, Philip M. Tetzlaff
  • Patent number: 11051880
    Abstract: Described here are devices, systems and methods for forming a fistula between two blood vessels. Generally, the systems may comprise a first catheter which may comprise a fistula-forming element. The fistula-forming element may comprise one or more electrodes, mechanical cutting elements, laser sources, or combinations thereof, and may be used to assist in fistula formation. In some instances, a system may comprise a second catheter, which may comprise a fistula-forming element. One or more of the catheters may comprise one or more markers, magnetic alignment elements, and/or one shape-changing elements.
    Type: Grant
    Filed: August 7, 2018
    Date of Patent: July 6, 2021
    Assignee: TVA Medical, Inc.
    Inventors: Gary H. Miller, Adam L. Berman, William E. Cohn, Dana R. Mester, Damian A. Jelich
  • Patent number: 11026743
    Abstract: Described here are devices, systems, and methods for forming a fistula between two blood vessels. The systems may comprise a first catheter including a housing and an electrode having a proximal end and a distal end. The proximal end is fixed relative to the housing and the distal end is longitudinally slidable within the housing.
    Type: Grant
    Filed: January 15, 2017
    Date of Patent: June 8, 2021
    Assignee: TVA Medical, Inc.
    Inventors: Thomas D. Pate, Dana R. Mester, William E. Cohn, Philip M. Tetzlaff
  • Publication number: 20210128228
    Abstract: Described here are devices and methods for forming a fistula between two vessels. In some instances, the fistula may be formed between a proximal ulnar artery and a deep ulnar vein. The fistula may be formed using an electrode, and may be formed with a first catheter placed in a first blood vessel and a second catheter placed in a second blood vessel. In some instances, access to the proximal ulnar artery may be achieved through a brachial artery, and access to the deep ulnar vein may be achieved through a brachial vein.
    Type: Application
    Filed: November 18, 2020
    Publication date: May 6, 2021
    Applicant: TVA Medical, Inc.
    Inventors: Jesus M. Rios, William E. Cohn, Dheeraj K. Rajan, Adam L. Berman, Dana R. Mester, Damian A. Jelich, Andrew Frazier, James E. Deaton, Lynn Warren Hamrick
  • Publication number: 20210113807
    Abstract: A device for clearing obstructions from a medical tube, such as a chest tube, is disclosed in various embodiments. The device features a clearance member in the form of a loop. The loop desirably has a diameter that substantially corresponds to the inner diameter of the medical tube. Also desirably, the loop presents a substantially unobstructed pathway therethrough for the flow of material from a location in the medical tube distal to the loop to a location in the medical tube proximal to the loop regardless whether the clearance member is being translated or is at rest in the medical tube. Methods of utilizing such a device are also disclosed.
    Type: Application
    Filed: December 29, 2020
    Publication date: April 22, 2021
    Inventors: Edward M. Boyle, JR., Nathan J. Dale, Paul C. Leonard, Alan Marc Gillinov, Sam Kiderman, William E. Cohn