Patents by Inventor Randy L. Schlemmer

Randy L. Schlemmer 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).

  • Orthopedic component of low stiffness
    Patent number: 8652212
    Abstract: An orthopedic component having multiple layers that are selected to provide an overall modulus that is substantially lower than the modulus of known orthopedic components to more closely approximate the modulus of the bone into which the orthopedic component is implanted. In one exemplary embodiment, the orthopedic component is an acetabular shell. For example, the acetabular shell may include an outer layer configured for securement to the natural acetabulum of a patient and an inner layer configured to receive an acetabular liner. The head of a femoral prosthesis articulates against the acetabular liner to replicate the function of a natural hip joint. Alternatively, the inner layer of the acetabular shell may act as an integral acetabular liner against which the head of the femoral prosthesis articulates.
    Type: Grant
    Filed: January 29, 2009
    Date of Patent: February 18, 2014
    Assignee: Zimmer, Inc.
    Inventors: Kirt L. Case, Oludele O. Popoola, Robby Kissling, Brion R. Mimnaugh, Archie W. Newsome, Clarence M. Panchison, Dirk L. Pletcher, Randy L. Schlemmer, Zhibin Fang, Juan Vivanco, Alicia Rufner
  • Acetabular cup conversion ring
    Patent number: 8308811
    Abstract: An acetabular implant for hip replacement surgery includes a shell component and first and second alternative bearing components interchangeably engageable with the shell component to provide a choice in bearing components. The shell component has a shell component engagement mechanism suitable for engaging the first alternative bearing component. A conversion ring is also engageable with the shell component, so that a shell component/conversion ring assembly provides a second shell component engagement mechanism suitable for engagement with the second alternative bearing component.
    Type: Grant
    Filed: March 31, 2010
    Date of Patent: November 13, 2012
    Assignee: Zimmer, Inc.
    Inventors: Archie W. Newsome, Randy L. Schlemmer, Erin M. Johnson, Richard A. Berger
  • Acetabular cup conversion ring
    Patent number: 7985259
    Abstract: An acetabular implant for hip replacement surgery includes a shell component and first and second alternative bearing components interchangeably engageable with the shell component to provide a choice in bearing materials. The shell component has an engagement mechanism suitable for locking engagement with the first alternative shell component. A conversion ring is lockingly engageable with the shell component to adapt the shell component to provide an engagement mechanism suitable for locking engagement with the second alternative shell component.
    Type: Grant
    Filed: July 16, 2009
    Date of Patent: July 26, 2011
    Assignee: Zimmer Technology, Inc.
    Inventors: Richard A. Berger, Erin M. Johnson, Archie W. Newsome, Randy L. Schlemmer
  • ACETABULAR CUP CONVERSION RING
    Publication number: 20110087335
    Abstract: An acetabular implant for hip replacement surgery includes a shell component and first and second alternative bearing components interchangeably engageable with the shell component to provide a choice in bearing components. The shell component has a shell component engagement mechanism suitable for engaging the first alternative bearing component. A conversion ring is also engageable with the shell component, so that a shell component/conversion ring assembly provides a second shell component engagement mechanism suitable for engagement with the second alternative bearing component.
    Type: Application
    Filed: March 31, 2010
    Publication date: April 14, 2011
    Applicant: ZIMMER, INC.
    Inventors: Archie W. Newsome, Randy L. Schlemmer, Erin M. Johnson, Richard A. Berger
  • ACETABULAR CUP CONVERSION RING
    Publication number: 20090287312
    Abstract: An acetabular implant for hip replacement surgery includes a shell component and first and second alternative bearing components interchangeably engageable with the shell component to provide a choice in bearing materials. The shell component has an engagement mechanism suitable for locking engagement with the first alternative shell component. A conversion ring is lockingly engageable with the shell component to adapt the shell component to provide an engagement mechanism suitable for locking engagement with the second alternative shell component.
    Type: Application
    Filed: July 16, 2009
    Publication date: November 19, 2009
    Applicant: Zimmer Technology, Inc.
    Inventors: Richard A. Berger, Erin M. Johnson, Archie W. Newsome, Randy L. Schlemmer
  • ORTHOPEDIC COMPONENT OF LOW STIFFNESS
    Publication number: 20090192610
    Abstract: An orthopedic component having multiple layers that are selected to provide an overall modulus that is substantially lower than the modulus of known orthopedic components to more closely approximate the modulus of the bone into which the orthopedic component is implanted. In one exemplary embodiment, the orthopedic component is an acetabular shell. For example, the acetabular shell may include an outer layer configured for securement to the natural acetabulum of a patient and an inner layer configured to receive an acetabular liner. The head of a femoral prosthesis articulates against the acetabular liner to replicate the function of a natural hip joint. Alternatively, the inner layer of the acetabular shell may act as an integral acetabular liner against which the head of the femoral prosthesis articulates.
    Type: Application
    Filed: January 29, 2009
    Publication date: July 30, 2009
    Applicant: ZIMMER, INC.
    Inventors: Kirt L. Case, Oludele O. Popoola, Robby Kissling, Brion R. Mimnaugh, Archie W. Newsome, Clarence M. Panchison, Dirk L. Pletcher, Randy L. Schlemmer, Zhibin Fang, Juan Vivanco, Alicia Rufner