Patents by Inventor Stanley Kampner

Stanley Kampner 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: 4224696
    Abstract: A prosthetic knee having as its component parts a femoral implant, a tibial implant, and a meniscal plate disposed between the implants. Knee flexion and extension is permitted by compoundly curved condyle surfaces of the femoral implant, which resemble corresponding surfaces of a natural knee, and correspondingly shaped convex bearing surfaces in the meniscal plate. All other motions of the prosthetic knee take place at the interface between the meniscal plate and tibial implant. This interface is defined by a continuous, concave, spherically shaped surface in the upwardly facing plateau of the tibial implant and a corresponding, continuous, convex spherical surface of the meniscal plate. The components are biased into mutual engagement along the cooperating concave and convex surfaces by the natural ligaments which surround the prosthetic knee. The continuous biased engagement of the cooperating convex and concave surfaces of the prosthetic knee assure its stability.
    Type: Grant
    Filed: September 8, 1978
    Date of Patent: September 30, 1980
    Assignee: Hexcel Corporation
    Inventors: Ian Murray, Stanley Kampner
  • Patent number: 4224697
    Abstract: A constrained prosthetic knee having as its component parts a femoral implant, a tibial implant, and a meniscal plate disposed between the implants. Knee flexion and extension is permitted by compoundly curved condyle surfaces of the femoral implant, which resemble corresponding surfaces of a natural knee, and correspondingly shaped convex bearing surfaces in the meniscal plate and tibial implant. This interface is defined by a continuous, concave, spherically shaped surface in the upwardly facing plateau of the tibial implant and a corresponding, continuous, convex spherical surface of the meniscal plate. A post projects from the tibial implant into a cavity defined by the femoral implant and the free end of the post and the cavity have opposing, cooperating and overlapping ledges which maintain the implants constrained to each other. The ledges permit unrestrained flexion, extension and torsional movement of the knee and limited lateral rocking (adduction-abduction).
    Type: Grant
    Filed: September 8, 1978
    Date of Patent: September 30, 1980
    Assignee: Hexcel Corporation
    Inventors: Ian Murray, Stanley Kampner