Patents by Inventor James S. Sarkisian

James S. Sarkisian 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: 5658347
    Abstract: A cup for reconstruction of an acetabulum in a pelvis, and a method for installing the apparatus. The cup is generally ellipsoidal in shape, with a rigid keel extending from the convex surface of the cup at a given angle. An ellipsoidal concave cavity is formed in the pelvis, and a stabilization channel is formed into the pelvis, at an angle which is close to, but slightly less than the angle on the keel. The cup is installed in the concave cavity, and the rigid keel is forced into the stabilization channel.
    Type: Grant
    Filed: April 30, 1996
    Date of Patent: August 19, 1997
    Inventors: James S. Sarkisian, Clarence F. Batchelder
  • Patent number: 5425777
    Abstract: A metallic implantable finger joint has a biocompatible protective coating and includes both a base member and a protraction member. The base member is formed with a recess and has a protrusion projecting from inside the recess. The protraction member has a hemispherical surface which is slidingly engageable with the recess of the base member. Additionally, the protraction member is formed with a groove which engagingly receives the protrusion from the base member. This engagement is such that when the base member is juxtaposed with the protraction member, the interaction between the protrusion and the groove allows for relative movement between the members in flexion-extension, lateral rotation and pure rotation. The finger joint can also include implant barbs which are selectively engageable with the base member and the protraction member.
    Type: Grant
    Filed: March 25, 1994
    Date of Patent: June 20, 1995
    Inventors: James S. Sarkisian, Clarence F. Batchelder
  • Patent number: 5370700
    Abstract: A prosthetic knee joint to articulate and rotate the femur relative to the tibia includes an artificial femoral condyle which is mechanically attachable to the femur, and an artificial tibial plateau which is mechanically attachable to the tibia for articulation with the femoral condyle. The femoral condyle has a convex surface and a pair of cylindrical lobes which coaxially extend from the femoral condyle. On the other hand, the tibial plateau has a concave recess which slidingly receives the convex surface and it has a concave cradle which slidingly receives the pair of cylindrical lobes. For operation of the knee joint the concave recess and the concave cradle are oriented and dimensioned on the plateau to sequentially and respectively receive the convex surface and the pair of cylindrical lobes as the femur is moved in flexion and extension relative to the tibia.
    Type: Grant
    Filed: February 19, 1993
    Date of Patent: December 6, 1994
    Inventors: James S. Sarkisian, Clarence F. Batchelder