Latent mobile bearing for prosthetic device
AssigneeBiomet Manufacturing, LLC
InventorTroy W. Hershberger
Life of this patent
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Abstract
A prosthetic device for an anatomical feature includes a prosthetic member able to be fixed to the anatomical feature. The device also includes a bearing including a bearing surface able to support an articulating surface for articulation thereon. Additionally, the device includes a bearing restraining member that limits movement of the bearing relative to the prosthetic member at a first time. The bearing restraining member also allows for increased movement of the bearing relative to the prosthetic member at a second time without surgical intervention.
Claims19
A prosthetic device for an anatomical feature comprising:
- a prosthetic member configured to be attached to the anatomical feature;
- a bearing having a bearing surface configured to support an articulating surface for articulation thereon;
- and
- a bearing restraining member that controls movement of the bearing relative to the prosthetic member to allow a first degree of freedom and restrain a second degree of freedom at a first time and to allow the first degree of freedom and allow the second degree of freedom at a second time, wherein at least one of the prosthetic member and the bearing defines an opening that receives the bearing restraining member.
A prosthetic device for an anatomical feature comprising:
- a tibial prosthetic member having a tibial tray and a guide post extending from the tibial tray;
- a bearing having a bearing surface configured to support an articulating surface for articulation thereon, the bearing defining an elongated bore extending along a longitudinal axis and configured to receive the guide post and defining an elongated opening extending along the longitudinal axis;
- and
- a bearing restraining member extending into the elongated opening to control movement of the bearing relative to the tibial prosthetic member at a first time and a second time, wherein movement at the first time is different than the movement at the second time.
A prosthetic device for an anatomical feature comprising:
- a femoral prosthetic member configured to be attached to a femur and having an articulating surface;
- a tibial prosthetic member configured to be attached to a tibia;
- a bearing having a bearing surface configured to support the articulating surface of the femoral prosthetic member for articulation thereon;
- and
- a bearing restraining member that controls movement of the bearing relative to the tibial prosthetic member, wherein the bearing restraining member allows only a first degree of freedom of movement at a first time and allows a first and a second degree of freedom of movement at a second time.
Dependencies are inferred from the claim text.