Patents by Inventor William Cohn

William 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).

  • Publication number: 20190125176
    Abstract: One aspect of the invention provides a trocar including: a central cylinder defining a central channel and having a distal end adapted and configured for insertion within a subject; one or more gas outlets located within the central cylinder proximate to the distal end of the trocar; and one or more liquid outlets located within the central cylinder on a proximal side of the one or more gas outlets. The one or more liquid outlets are adapted and configured to dispense a liquid when an endoscope is withdrawn from a fully extended position within the central channel of the trocar to a position proximate to the one or more liquid outlets. Distal advancement of the endoscope to a position adjacent to the one or more gas outlets removes liquid from a distal end of the endoscope.
    Type: Application
    Filed: April 13, 2017
    Publication date: May 2, 2019
    Applicants: Baylor College of Medicine, Texas Heart Institute
    Inventors: Bryan M. Burt, Mahmood Khan, William Cohn
  • Publication number: 20160089255
    Abstract: Disclosed herein are embodiments of an occlusion device that can be delivered into the vascular system of a patient for inducing weight loss. The device can be formed from a body that can expand from a collapsed to an expanded position, where the body can be configured to at least partially occlude a blood vessel. Further, the device can comprise a first and second end joined by a center section. One of the ends can contain a retrieval element for easily removing the device from the patient.
    Type: Application
    Filed: September 23, 2015
    Publication date: March 31, 2016
    Inventors: Olav Bergheim, William Cohn, Reynolds Delgado, Timothy Murphy, Chris Swain
  • Patent number: 8790399
    Abstract: The present invention provides a total artificial heart system for auto-regulating flow and pressure balance. In one embodiment the system comprises an atrial reservoir comprising inlets and outlets connectable to a mammalian cardiovascular system and at least first and second continuous pumps connected to the atrial reservoir. In further embodiments, the system comprises an atrial reservoir comprising at least two atrial chambers, and a means for transmitting fluid pressure between the atrial chambers. The means for transmitting fluid pressure include, but are not limited to a diaphragm, an interatrial window, a flexible membrane, a valve, a filter, or combinations thereof. In another embodiment, the means for transmitting fluid pressure comprises an implantable diaphragm comprising an outer rim attachable to biological tissue and a membrane anchored at its periphery by said outer rim.
    Type: Grant
    Filed: May 27, 2010
    Date of Patent: July 29, 2014
    Assignee: Newheart Medical Devices, LLC
    Inventors: Oscar H. Frazier, William Cohn
  • Patent number: 8201242
    Abstract: A small program in a browser that a knowledge worker uses to search for content can be activated when the worker wants to determine available rights for a publication that has been found. When activated, the program accesses a rights advisor website that converts the URL of the publication in the browser to standard publication identifiers. The publication identifiers are then used to access a rights database and extract all rights associated with the publication. Based on selected characteristics of the worker and the organization to which the worker belongs, the rights are filtered and placed into a decision tree. The tree is then traversed from its lowest level upward to locate the most favorable rights and the resulting rights are presented to the worker via the browser.
    Type: Grant
    Filed: April 10, 2007
    Date of Patent: June 12, 2012
    Assignee: Copyright Clearance Center, Inc.
    Inventors: William Cohn, Keith Meyer, James Arbo, Vivek Shetty
  • Publication number: 20120130405
    Abstract: A suture system includes a plurality of double-stranded needles connected in sequence with a single-stranded needle at each end. The double-stranded suture needles incorporates two suture strands into a single needle. The suture system of the present invention facilitates the implantation of valve prostheses.
    Type: Application
    Filed: January 13, 2012
    Publication date: May 24, 2012
    Inventors: William Cohn, Thomas P. Mathers
  • Patent number: 8097005
    Abstract: A suture system includes a plurality of double-stranded needles connected in sequence with a single-stranded needle at each end. The double-stranded suture needles incorporates two suture strands into a single needle. The suture system of the present invention facilitates the implantation of valve prostheses.
    Type: Grant
    Filed: August 25, 2003
    Date of Patent: January 17, 2012
    Assignees: Beth Israel Deaconess Medical Center, Teleflex Incorporated
    Inventors: William Cohn, Thomas P. Mathers
  • Publication number: 20110098807
    Abstract: The present invention provides a total artificial heart system for auto-regulating flow and pressure balance. In one embodiment the system comprises an atrial reservoir comprising inlets and outlets connectable to a mammalian cardiovascular system and at least first and second continuous pumps connected to the atrial reservoir. In further embodiments, the system comprises an atrial reservoir comprising at least two atrial chambers, and a means for transmitting fluid pressure between the atrial chambers. The means for transmitting fluid pressure include, but are not limited to a diaphragm, an interatrial window, a flexible membrane, a valve, a filter, or combinations thereof. In another embodiment, the means for transmitting fluid pressure comprises an implantable diaphragm comprising an outer rim attachable to biological tissue and a membrane anchored at its periphery by said outer rim.
    Type: Application
    Filed: May 27, 2010
    Publication date: April 28, 2011
    Inventors: Oscar H. Frazier, William Cohn
  • Patent number: 7736308
    Abstract: A surgical retractor immobilizes tissue at a surgical site. A preferred embodiment of the retractor is used during minimally invasive direct coronary bypass procedures to arrest movement of the grafting site while the heart continues pumping. Tape or thread can be used to connect the artery to the retractor with a holder.
    Type: Grant
    Filed: September 16, 2002
    Date of Patent: June 15, 2010
    Assignee: Teleflex-CT Devices Incorporated
    Inventors: William Cohn, Jennie H. Brown, Douglas A. Hutchison, Lawrence F. Travers, Michael A. Valerio
  • Patent number: 7468030
    Abstract: A present invention relates to a surgical retractor that immobilizes tissue at a surgical site. A preferred embodiment of the retractor is used during minimally invasive direct coronary bypass procedures to arrest movement of the grafting site while the heart continues pumping. Tape or thread can be used to connect the artery to the retractor with a holder.
    Type: Grant
    Filed: March 6, 2000
    Date of Patent: December 23, 2008
    Assignee: Beth Israel Deaconess Medical Center
    Inventor: William Cohn
  • Publication number: 20080103590
    Abstract: A method and device for reducing mitral regurgitation. An elongated body is positioned in a coronary sinus of a patient in a vicinity of a heart mitral valve posterior leaflet. The body is adapted to straighten a natural curvature of at least a portion of the coronary sinus in the vicinity of the posterior leaflet to move a posterior annulus anteriorly, which in turn moves the posterior leaflet anteriorly, thereby to improve leaflet coaptation.
    Type: Application
    Filed: June 15, 2007
    Publication date: May 1, 2008
    Inventors: Daniel Taylor, William Cohn, John Liddicoat, Steven Woolfson, Todd Davenport, Richard Streeter, Thomas Kordis, Jonathan Rourke
  • Publication number: 20080031847
    Abstract: In certain embodiments, the present invention relates to methods and kits for treating wounds, comprising the step of introducing into said wound a composition comprising at least one optionally purified inverse thermosensitive polymer, wherein said at least one optionally purified inverse thermosensitive polymer forms a gel in said wound, thereby temporarily occluding said wound. In certain embodiments, the present invention relates to the aforementioned method wherein a wound to a blood vessel or a segment of the GI tract is occluded, thereby preventing exsanguination and/or septicemia. In other embodiments, the inventive methods and kits described herein may be used to ameliorate (e.g., fill) temporarily a defect in a biological lumen, thereby strengthening said defect, preventing rupture of, or maintaining, improving or optimizing fluid flow through said lumen.
    Type: Application
    Filed: December 18, 2006
    Publication date: February 7, 2008
    Applicant: Pluromed, Inc.
    Inventors: William Cohn, Jean-Marie Vogel
  • Publication number: 20070288434
    Abstract: A small program in a browser that a knowledge worker uses to search for content can be activated when the worker wants to determine available rights for a publication that has been found. When activated, the program accesses a rights advisor website that converts the URL of the publication in the browser to standard publication identifiers. The publication identifiers are then used to access a rights database and extract all rights associated with the publication. Based on selected characteristics of the worker and the organization to which the worker belongs, the rights are filtered and placed into a decision tree. The tree is then traversed from its lowest level upward to locate the most favorable rights and the resulting rights are presented to the worker via the browser.
    Type: Application
    Filed: April 10, 2007
    Publication date: December 13, 2007
    Applicant: Copyright Clearance Center, Inc.
    Inventors: William Cohn, Keith Meyer, James Arbo, Vivek Shetty
  • Publication number: 20070213814
    Abstract: A method and apparatus for reducing mitral regurgitation. The apparatus is inserted into the coronary sinus of a patient in the vicinity of the posterior leaflet of the mitral valve, the apparatus being adapted to straighten the natural curvature of at least a portion of the coronary sinus in the vicinity of the posterior leaflet of the mitral valve, whereby to move the posterior annulus anteriorly and thereby improve leaflet coaptation and reduce mitral regurgitation.
    Type: Application
    Filed: March 6, 2007
    Publication date: September 13, 2007
    Inventors: John Liddicoat, Daniel Taylor, Richard Streeter, Steven Woolfson, William Cohn, Todd Davenport
  • Publication number: 20070185513
    Abstract: Apparatus for resecting a diseased heart valve, the apparatus comprising: a body portion; a first handle and a second handle; a cutting blade; a set of retaining arms; a pass-off tool having a first attachment device configured to selectively engage the first handle attached to the body portion so as to allow placement of the second handle of the body portion adjacent to the diseased heart valve, and a controller tool having a second attachment device at the distal end thereof, the second attachment device configured to selectively engage the second handle attached to the body portion so as to allow positioning of the body portion adjacent to the diseased heart valve, a cutting blade actuator configured to cause the cutting blade to selectively rotate, and a retaining arm actuator configured to selectively position the set of retaining arms from the contracted state to the expanded state.
    Type: Application
    Filed: April 6, 2007
    Publication date: August 9, 2007
    Inventors: Steven Woolfson, Richard Streeter, Daniel Taylor, William Cohn
  • Publication number: 20070156235
    Abstract: A method and apparatus for reducing mitral regurgitation. The apparatus is inserted into the coronary sinus of a patient in the vicinity of the posterior leaflet of the mitral valve, the apparatus being adapted to straighten the natural curvature of at least a portion of the coronary sinus in the vicinity of the posterior leaflet of the mitral valve, whereby to move the posterior annulus anteriorly and thereby improve leaflet coaptation and reduce mitral regurgitation.
    Type: Application
    Filed: October 17, 2006
    Publication date: July 5, 2007
    Inventors: Jonathan Rourke, John Liddicoat, Daniel Taylor, William Cohn
  • Patent number: 7235049
    Abstract: The present invention relates to a surgical retractor that immobilizes tissue at a surgical site. A preferred embodiment of the retractor is used during minimally invasive direct coronary bypass procedures to arrest movement of the grafting site while the heart continues pumping. Tape or thread can be used to connect the artery to the retractor with a holder.
    Type: Grant
    Filed: May 7, 1999
    Date of Patent: June 26, 2007
    Assignee: Beth Israel Deaconess Medical Center
    Inventor: William Cohn
  • Publication number: 20070073313
    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: Application
    Filed: November 15, 2006
    Publication date: March 29, 2007
    Inventors: John Liddicoat, William Cohn, Roger Laham
  • Publication number: 20060253129
    Abstract: A novel catheter-based system that 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 inserted into the interior of the left atrial appendage that may assist in locating the left atrial appendage and/or assist in the optimal placement of a ligature or constricting element on the outside of the appendage, and a ligating catheter and/or instrument outside the heart in the pericardial space to set the ligature or constricting element at the neck of the left atrial appendage.
    Type: Application
    Filed: April 7, 2006
    Publication date: November 9, 2006
    Inventors: John Liddicoat, William Cohn
  • Publication number: 20060229717
    Abstract: A method for reducing mitral regurgitation includes deploying deforming matter into a selected one of (i) a mitral valve annulus adjacent a posterior leaflet, and (ii) tissue adjacent the mitral valve annulus and proximate the posterior leaflet, to cause conformational change in the mitral valve annulus to increase mitral valve leaflet coaptation.
    Type: Application
    Filed: March 9, 2006
    Publication date: October 12, 2006
    Inventors: William Cohn, John Liddicoat, Steven Woolfson, Todd Davenport, Richard Streeter
  • Publication number: 20050267574
    Abstract: Apparatus for reducing mitral regurgitation, by applying a force to the wall of the coronary sinus so as to force the posterior leaflet anteriorly and thereby reduce mitral regurgitation.
    Type: Application
    Filed: May 6, 2005
    Publication date: December 1, 2005
    Inventors: William Cohn, John Liddicoat, Richard Streeter, Daniel Taylor, Steven Woolfson