Patents by Inventor Malcolm C. Burwell

Malcolm C. Burwell 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: 5732871
    Abstract: An improved surgical instrument is provided for applying surgical fasteners, such as staples, to human tissue which is particularly suited for applying one or more rows of fasteners across a tissue lumen. The surgical instrument can be used in thoracic and abdominal surgical procedures where access to the surgical site is restricted. The surgical instrument includes an articulated fastener applying assembly mounted on a rotatable and flexible support shaft assembly to provide more convenient access to restricted surgical sites. The fastener applying assembly has a compact construction including a fixed jaw which supports a fastener cartridge and a movable jaw which supports an anvil for clamping the tissue therebetween. The fastener applying assembly includes a pin placement mechanism which is actuated by the movable jaw to control the movement of a tissue retaining pin on the fixed jaw.
    Type: Grant
    Filed: May 4, 1995
    Date of Patent: March 31, 1998
    Assignee: Ethicon, Inc.
    Inventors: George A. Clark, Malcolm C. Burwell, John A. Gola, Christopher Robinson, Fred E. Snyder
  • Patent number: 5607094
    Abstract: An improved surgical instrument is provided for applying surgical fasteners, such as staples, to human tissue which is particularly suited for applying one or more rows of fasteners across a tissue lumen. The surgical instrument can be used in thoracic and abdominal surgical procedures where access to the surgical site is restricted. The surgical instrument includes an articulated fastener applying assembly mounted on a rotatable and flexible support shaft assembly to provide more convenient access to restricted surgical sites. The fastener applying assembly has a compact construction including a fixed jaw which supports a fastener cartridge and a movable jaw which supports an anvil for clamping the tissue therebetween. The fastener applying assembly includes a pin placement mechanism which is actuated by the movable jaw to control the movement of a tissue retaining pin on the fixed jaw.
    Type: Grant
    Filed: May 4, 1995
    Date of Patent: March 4, 1997
    Assignee: Ethicon, Inc.
    Inventors: George A. Clark, Malcolm C. Burwell, John A. Gola, Christopher Robinson, Fred E. Snyder
  • Patent number: 5603443
    Abstract: An improved surgical instrument is provided for applying surgical fasteners, such as staples, to human tissue which is particularly suited for applying one or more rows of fasteners across a tissue lumen. The surgical instrument can be used in thoracic and abdominal surgical procedures where access to the surgical site is restricted. The surgical instrument includes an articulated fastener applying assembly mounted on a rotatable and flexible support shaft assembly to provide more convenient access to restricted surgical sites. The fastener applying assembly has a compact construction including a fixed jaw which supports a fastener cartridge and a movable jaw which supports an anvil for clamping the tissue therebetween. The fastener applying assembly includes a pin placement mechanism which is actuated by the movable jaw to control the movement of a tissue retaining pin on the fixed jaw.
    Type: Grant
    Filed: May 4, 1995
    Date of Patent: February 18, 1997
    Assignee: Ethicon, Inc.
    Inventors: George A. Clark, Malcolm C. Burwell, John A. Gola, Christopher Robinson, Fred E. Snyder
  • Patent number: 5465894
    Abstract: An improved surgical instrument is provided for applying surgical fasteners, such as staples, to human tissue which is particularly suited for applying one or more rows of fasteners across a tissue lumen. The surgical instrument can be used in thoracic and abdominal surgical procedures where access to the surgical site is restricted. The surgical instrument includes an articulated fastener applying assembly mounted on a rotatable and flexible support shaft assembly to provide more convenient access to restricted surgical sites. The fastener applying assembly has a compact construction including a fixed jaw which supports a fastener cartridge and a movable jaw which supports an anvil for clamping the tissue therebetween. The fastener applying assembly includes a pin placement mechanism which is actuated by the movable jaw to control the movement of a tissue retaining pin on the fixed jaw.
    Type: Grant
    Filed: December 6, 1993
    Date of Patent: November 14, 1995
    Assignee: Ethicon, Inc.
    Inventors: George A. Clark, Malcolm C. Burwell, John A. Gola, Christopher Robinson, Fred E. Snyder
  • Patent number: 5129315
    Abstract: An apparatus for forming an array of extruded filaments combines an extrusion head having an opening, a movable body having an array of a plurality of apertures aligned with the opening for forming an array of filaments of material extruded through the opening and the apertures, and a support positioned for receiving the extruded array of filaments. The apertured body is moved continuously beneath the extrusion head opening so that a plurality of apertures are positioned simultaneously underneath the opening and in contact with the extruded material and an array of filaments is continuously formed. Relative motion of the support with respect to arrays of filaments forms a lattice structure of superimposed arrays.
    Type: Grant
    Filed: June 27, 1990
    Date of Patent: July 14, 1992
    Assignee: Nestec S.A.
    Inventors: Malcolm C. Burwell, Pauline E. Murphy, David I. Neill, Peter J. Sayer
  • Patent number: 5126157
    Abstract: Edible products having a lattice structure are made by extruding an edible material into discrete arrays of discrete, essentially parallel, filaments, depositing a first array on a support, and superimposing a second array atop the first array so that the filaments of the first and second arrays are positioned at an angle.
    Type: Grant
    Filed: June 27, 1990
    Date of Patent: June 30, 1992
    Assignee: Nestec S.A.
    Inventors: Malcolm C. Burwell, Pauline E. Murphy, David I. Neill, Peter J. Sayer