Patents by Inventor Michael Tonkin

Michael Tonkin 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).

  • Expanding device
    Patent number: 11147697
    Abstract: A self-expandable stent (1) formed of a flexible, part-tubular body (2), anchoring portions (3) extending from each end of the body (2) and an array (4) of holes or perforations (40, 41, 42) through the body (2) and anchoring portions (3). The body (2) includes an open side (20) and a pair of axial edges (21) extending along a longitudinal axis (L) of the stent (1). The body (2) also includes a central portion (5) and a pair of axial edge portions (6) joining the central portion (5) to the axial edges (21). The central portion (5) of the body (2) is invertible from a relaxed, part-tubular condition to a flexed, inverted part-tubular condition in which the axial edges (21) overlap or converge toward one another for insertion and release in a lumen (TR, TET) to expand, bear against and support a wall of the lumen (TR, TET).
    Type: Grant
    Filed: December 21, 2017
    Date of Patent: October 19, 2021
    Assignee: TONKIN LIU STENTS LIMITED
    Inventors: Anna Liu, Michael Tonkin
  • EXPANDING DEVICE
    Publication number: 20190350731
    Abstract: A self-expandable stent (1) formed of a flexible, part-tubular body (2), anchoring portions (3) extending from each end of the body (2) and an array (4) of holes or perforations (40, 41, 42) through the body (2) and anchoring portions (3). The body (2) includes an open side (20) and a pair of axial edges (21) extending along a longitudinal axis (L) of the stent (1). The body (2) also includes a central portion (5) and a pair of axial edge portions (6) joining the central portion (5) to the axial edges (21). The central portion (5) of the body (2) is invertible from a relaxed, part-tubular condition to a flexed, inverted part-tubular condition in which the axial edges (21) overlap or converge toward one another for insertion and release in a lumen (TR, TET) to expand, bear against and support a wall of the lumen (TR, TET).
    Type: Application
    Filed: December 21, 2017
    Publication date: November 21, 2019
    Inventors: Anna Liu, Michael Tonkin
  • Spanner
    Patent number: D434621
    Type: Grant
    Filed: December 8, 1999
    Date of Patent: December 5, 2000
    Inventor: Michael Tonkin