Adjustable knee tibial trial insert
First Claim
Patent Images
1. An adjustable tibial trial insert for use with a tibial tray comprising:
- an upper plate including an upper articular surface, a lower plate including a lower surface configured to engage a top surface of the tibial tray, and a height-adjustment mechanism coupled to and positioned generally between the upper plate and the lower plate and configured to move between a closed position where the upper and lower plates are adjacent each other and an opened position where the upper and lower plates are spaced-apart from each other.
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Abstract
An adjustable tibial trial insert includes an upper plate having an upper articular surface and a lower plate. A height-adjustment mechanism of the insert is coupled to and positioned generally between the upper plate and the lower plate and is configured to move between a closed position where the upper and lower plates are adjacent each other and an opened position where the upper and lower plates are spaced-apart from each other in order to adjust a height or thickness of the insert.
51 Citations
27 Claims
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1. An adjustable tibial trial insert for use with a tibial tray comprising:
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an upper plate including an upper articular surface, a lower plate including a lower surface configured to engage a top surface of the tibial tray, and a height-adjustment mechanism coupled to and positioned generally between the upper plate and the lower plate and configured to move between a closed position where the upper and lower plates are adjacent each other and an opened position where the upper and lower plates are spaced-apart from each other. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. An adjustable tibial trial insert comprising:
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an upper plate including an upper articular surface, a lower plate, a height-adjustment mechanism including (i) drive means coupled to the upper plate and the lower plate for moving the upper plate and the lower plate away from each other, (ii) a tie-rod pivotably coupled to the drive means, and (iii) an actuator pivotably coupled at a first pivot point to one of the upper plate and the lower plate and pivotably coupled to the tie-rod at a second pivot point spaced-apart from the first pivot point. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24)
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25. An adjustable tibial trial insert comprising:
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an upper plate including an upper articular surface, a lower plate, and a non-threaded height-adjustment mechanism including (i) drive means coupled to the upper plate and the lower plate and movable between a closed position and an opened position to adjust a height of the insert, and (ii) an actuator coupled the drive means and to one of the upper and lower plates to move the drive means between the closed and opened positions. - View Dependent Claims (26, 27)
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Specification