Patents by Inventor Mark L. Mathis

Mark L. Mathis 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: 6503271
    Abstract: A stent having marker tabs formed from a micro-alloyed combination of materials provides for more precise placement and post-procedural visualization in a vessel, by increasing the radiopacity of the stent under X-ray fluoroscopy. A unique micro-alloying process is utilized to form the tabs, comprising a first alloy and a second alloy, wherein one of these alloys is radiopaque. This substantially eliminates the possibility of galvanic action between the tab and the stent. This process is also applicable to other medical devices.
    Type: Grant
    Filed: December 7, 2000
    Date of Patent: January 7, 2003
    Assignee: Cordis Corporation
    Inventors: Thomas Duerig, Mark L. Mathis, Alan Roy Pelton, Dieter Stoeckel
  • Publication number: 20020169502
    Abstract: An assembly for effecting the condition of a mitral valve of a heart includes a mitral valve therapy device, a guide wire, and a guide tube. The mitral valve therapy device is configured to reshape the mitral valve annulus of the heart when placed within the coronary sinus adjacent the mitral valve annulus. The guide wire is configured to be fed into the coronary sinus of the heart adjacent the mitral valve annulus. The guide tube has a distal end, a proximal end, and a lumen extending between the distal end and the proximal end. The guide tube further includes a side port, intermediate the distal and proximal ends which communicates with the lumen. This permits the guide tube to be slidingly received on the guide wire with the guide wire extending from the distal end, through the lumen, and out the side port. In use, the guide tube is slid along the guide wire into the coronary sinus.
    Type: Application
    Filed: May 14, 2001
    Publication date: November 14, 2002
    Applicant: Cardiac Dimensions, Inc.
    Inventor: Mark L. Mathis
  • Publication number: 20020058996
    Abstract: A device and method for refractive correction of the eye in order to improve the vision of the eye. The device is an intrastromal corneal ring (ICR) where the cone angle &thgr; is varied according to the desired change in corneal refractive properties. The method involves the insertion of the ICR with appropriate cone angle for the desired change those properties.
    Type: Application
    Filed: April 9, 1997
    Publication date: May 16, 2002
    Inventors: THOMAS A. SILVESTRINI, MARK L. MATHIS, JOHN A. SCHOLL, ROBERT A. PROUDFOOT
  • Publication number: 20010001317
    Abstract: A stent having marker tabs formed from a micro-alloyed combination of materials provides for more precise placement and post-procedural visualization in a vessel, by increasing the radiopacity of the stent under X-ray fluoroscopy. A unique micro-alloying process is utilized to form the tabs, comprising a first alloy and a second alloy, wherein one of these alloys is radiopaque. This substantially eliminates the possibility of galvanic action between the tab and the stent. This process is also applicable to other medical devices.
    Type: Application
    Filed: December 7, 2000
    Publication date: May 17, 2001
    Inventors: Thomas Duerig, Mark L. Mathis, Alan Roy Pelton, Dieter Stoeckel
  • Patent number: 5846256
    Abstract: This invention is an improved method and kit for producing a desired channel or pathway in the interlamellar space in the corneal stroma for inserting a biocompatible material. The biocompatible polymer may be an intrastromal corneal ring (ICR). The method involves the use of clockwise and counter-clockwise dissectors, and optionally channel connectors and finish channel connectors. The kit contains clockwise and counter-clockwise dissectors and optionally channel connectors, finish channel connectors and probes.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: December 8, 1998
    Assignee: KeraVision, Inc.
    Inventors: Mark L. Mathis, John A. Scholl, Robert A. Proudfoot, Thomas A. Silvestrini
  • Patent number: 5843105
    Abstract: This invention is an improved method and kit for producing a desired channel or pathway in the interlamellar space in the corneal stroma for inserting a bio-compatible material. The method involves the use of clockwise and counter-clockwise dissectors and optionally channel connectors and finish channel connector.
    Type: Grant
    Filed: August 6, 1996
    Date of Patent: December 1, 1998
    Inventors: Mark L. Mathis, John A. Scholl, Robert A. Proudfoot, Thomas A. Silvestrini
  • Patent number: 5599341
    Abstract: This invention is a procedure and system for the correction of optical abnormalities in a hum, a eye. It involves the use of laser radiation to desiccate or ablate tissue in the stromal layer of the cornea. The procedure involved the initial step of forming at least one access site allowing access to the corneal volume behind Bowman's layer. The laser probe is then introduced into the access site and, depending upon the visual abnormality to be corrected, the probe is activated to adjust the volume of the corneal stromal layers. The shape of the volume desiccated or ablated is dependent upon the aberration to be corrected. In certain circumstances, radial or circumferential cuts in Bowman's layer may allow the curvature of the cornea to change following the corneal volume adjustment.
    Type: Grant
    Filed: June 15, 1994
    Date of Patent: February 4, 1997
    Assignee: Keravision, Inc.
    Inventors: Mark L. Mathis, Thomas A. Silvestrini