Tibia part of a new joint endoprosthesis
First Claim
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1. A tibia part of a knee joint prosthesis, comprising:
- a tibia platform having a distal side; and
an anchoring element arranged on the distal side of the tibia platform and attached to the tibia platform, the anchoring element formed by a shield having a height which is smaller than a width of the shield, the shield having an upper surface facing the distal side of the tibia platform, a shape selected from a group consisting of a U-shape, C-shape and V-shape, and a distal edge which is convexly arc-shaped, an arc line of the distal edge defining a section selected from the group consisting of a circular section, an elliptical section, and a parabola.
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Abstract
A tibia part of a knee joint prosthesis includes a tibia platform having a distal side, and an anchoring element. The anchoring element is arranged on the distal side of the tibia platform and attached to the tibia platform. In one embodiment, the anchoring element is formed by a shield having a height which is smaller than a width of the shield, and the shield has a U-, C- or V-shape as seen from the tibia platform.
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Citations
19 Claims
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1. A tibia part of a knee joint prosthesis, comprising:
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a tibia platform having a distal side; and
an anchoring element arranged on the distal side of the tibia platform and attached to the tibia platform, the anchoring element formed by a shield having a height which is smaller than a width of the shield, the shield having an upper surface facing the distal side of the tibia platform, a shape selected from a group consisting of a U-shape, C-shape and V-shape, and a distal edge which is convexly arc-shaped, an arc line of the distal edge defining a section selected from the group consisting of a circular section, an elliptical section, and a parabola. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A tibia part of a knee joint prosthesis, comprising:
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a tibia platform having a distal side; and
an anchoring element arranged on the distal side of the tibia platform and attached to the tibia platform, the anchoring element formed by a shield having a height which is smaller than a width of the shield, the shield having a proximal edge facing the distal side of the tibia platform, said shield having a distal edge configured for insertion into bone, wherein said shield decreases in thickness in a stepwise manner from said proximal edge to said distal edge such that opposing wall surfaces of the shield remain parallel at each step.
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18. A method of installing a knee joint prosthesis, said prosthesis comprising a tibia platform and an anchoring element, said method comprising:
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inserting said anchoring element into a proximal portion of a tibia bone until an upper surface of said anchoring element is sunk beneath the tibia bone surface; and
securing said tibia part to said anchoring element. - View Dependent Claims (19)
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Specification