Patents by Inventor David L. Churchhill

David L. Churchhill 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).

  • Incrementally adjustable tibial osteotomy fixation device and method
    Patent number: 5964763
    Abstract: A fully implantable, incrementally adjustable osteotomy fixation apparatus is disclosed. The apparatus comprises a first plate member, and a second plate member being telescopically received within the first plate member. The osteotomy fixation apparatus may further comprise a ratchet assembly, operatively associated with the first and second plate member, which allows for advancement of the first plate member relative to the second plate member, but prevents retraction. Attachment means operatively associated with the first and second plate members are provided for attaching the apparatus to the bone. The apparatus may also include an external extension brace, operatively associated with the ratchet, for extending the second plate member relative to the first plate member so that post-operative angular correction of the bone may be achieved. A method of performing an osteotomy to the bone is also disclosed utilizing the fixation apparatus herein disclosed.
    Type: Grant
    Filed: June 5, 1998
    Date of Patent: October 12, 1999
    Inventors: Stephen J. Incavo, David L. Churchhill, Bruce D. Beynnon
  • Incrementally adjustable tibial osteotomy fixation device and method
    Patent number: 5827286
    Abstract: A fully implantable, incrementally adjustable osteotomy fixation apparatus is disclosed. The apparatus comprises a first plate member, and a second plate member being telescopically received within the first plate member. The osteotomy fixation apparatus may further comprise a ratchet assembly, operatively associated with the first and second plate member, which allows for advancement of the first plate member relative to the second plate member, but prevents retraction. Attachment means operatively associated with the first and second plate members are provided for attaching the apparatus to the bone. The apparatus may also include an external extension brace, operatively associated with the ratchet, for extending the second plate member relative to the first plate member so that post-operative angular correction of the bone may be achieved. A method of performing an osteotomy to the bone is also disclosed utilizing the fixation apparatus herein disclosed.
    Type: Grant
    Filed: February 14, 1997
    Date of Patent: October 27, 1998
    Inventors: Stephen J. Incavo, David L. Churchhill, Bruce D. Beynnon