Active Implants Corporation

Jonathan J Elsner

Henry A Klyce

Eran Linder-Ganz

A two-part joint replacement device for replacing damaged soft joint tissue, such as a meniscus or cartilage tissue. In one form, the device may include a free floating soft joint tissue replacement component comprising a first tissue-interface surface shaped to engage a first anatomical (bone and/or cartilage) structure of a joint having damaged soft tissue. The device may also include a free floating rigid base component comprising a second tissue-interface surface shaped to engage a second anatomical (bone and/or cartilage) structure of the joint. The free floating soft joint tissue replacement component may be shaped to slidably interface with the rigid base component. In another form, the free floating soft joint tissue replacement component and the rigid base component are fixed together.

Two-piece floating joint replacement device with a rigid backing material

A meniscus replacement device for replacing damaged soft tissue at a host knee includes a first component comprising a first tissue-interface surface shaped to free-floatingly interface with tissue structure of one of a femur and a tibia in a knee joint having a damaged soft tissue, and comprises a second component comprising a second tissue-interface surface shaped to free-floatingly interface with a second tissue structure of the other of the femur and the tibia in the knee joint. The second component may include a containment cavity receiving at least a portion of the first component. In another form, the free floating soft joint tissue replacement component and the base component are fixed together. In some aspects, the second tissue-interface surface is shaped to fit contours of a natural tibia plateau. In some aspects, the first tissue-interface surface is shaped to fit contours of a femoral surface.

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Cambridge, MA, United States of America

Jonathan J Elsner