Patents by Inventor Maitland C. MacKenzie

Maitland C. MacKenzie 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: 7524296
    Abstract: The vacuum orthopedic brace and method include the use of an inner sleeve or liner, and at least one rigid member. The rigid member includes a fabric liner or other porous material to act as a wick, and a gasket surrounding the wick material. A valve is preferably provided in the rigid member for drawing air from between the rigid member and the liner, i.e. to create a vacuum. Furthermore, an external, internal or integrated chamber or rigid reservoir is preferably included, and is in communication with the wick filled area between the rigid member and liner, to hold a vacuum.
    Type: Grant
    Filed: March 13, 2006
    Date of Patent: April 28, 2009
    Inventors: William S. Patterson, Robert Gailey, Augusto Sarmiento, Maitland C. MacKenzie, Roy P. McMurray
  • Patent number: 7011640
    Abstract: The vacuum orthopedic brace and method include the use of an inner sleeve or liner, first and second cuffs, and a hinge connecting the cuffs. The cuffs includes a fabric liner or other porous material to act as a wick, and a gasket surrounding the wick material. A valve is preferably provided in the cuff for drawing air from between the cuff and the liner, i.e. to create a vacuum. Furthermore, an external, internal or integrated chamber or rigid reservoir is preferably included, and in communication with the wick filled area between the cuff and liner, to hold a vacuum.
    Type: Grant
    Filed: December 23, 2004
    Date of Patent: March 14, 2006
    Assignee: Vacuity, Inc.
    Inventors: William S. Patterson, Robert Gailey, Augusto Sarmiento, Maitland C. MacKenzie, Roy P. McMurray
  • Patent number: 6926742
    Abstract: A hypobarically-controlled artificial limb for amputees includes a single socket with a volume and shape to receive a substantial portion of the residual limb. A liner with a volume less than the residual limb is donned over the residual limb, with the liner tensioned into a total contact relationship with the residual limb. A sealed cavity is formed between the socket and the liner. A vacuum source is connected to the socket cavity thereby drawing the residual limb and liner into firm and total contact with the socket. To compensate for some air leakage past the seal, there is a mechanism to maintain the vacuum in the cavity. A plate/socket attachment connects the vacuum source to the cavity.
    Type: Grant
    Filed: March 4, 2002
    Date of Patent: August 9, 2005
    Assignee: Otto Bock Healthcare LP
    Inventors: Carl A. Caspers, Maitland C. MacKenzie
  • Publication number: 20020091449
    Abstract: A hypobarically-controlled artificial limb for amputees includes a single socket with a volume and shape to receive a substantial portion of the residual limb. A liner with a volume less than the residual limb is donned over the residual limb, with the liner tensioned into a total contact relationship with the residual limb. A sealed cavity is formed between the socket and the liner. A vacuum source is connected to the socket cavity thereby drawing the residual limb and liner into firm and total contact with the socket. To compensate for some air leakage past the seal, there is a mechanism to maintain the vacuum in the cavity. A plate/socket attachment connects the vacuum source to the cavity.
    Type: Application
    Filed: March 4, 2002
    Publication date: July 11, 2002
    Inventors: Carl A. Caspers, Maitland C. MacKenzie
  • Patent number: D429335
    Type: Grant
    Filed: September 3, 1999
    Date of Patent: August 8, 2000
    Assignee: Caspers-Schneider Technologies, Inc.
    Inventors: Carl A. Caspers, Maitland C. MacKenzie