Femoral guide for implanting a femoral knee prosthesis
First Claim
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1. A femoral sizing guide which facilitates the selection of a femoral prosthetic, the femoral sizing guide comprising:
- an extension portion configured to be placed adjacent to a posterior condyle surface of the femur;
a base portion pivotally connected to the extension portion;
a first actuator disposed between the extension portion and the base portion, the first actuator rotatably displaces the extension portion with respect to the base portion;
a superstructure having a drilling guide slidably coupled to the base portion; and
a graduated stylus coupled to the superstructure which is configured to be placed adjacent an anterior condyle surface of the femur.
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Accused Products
Abstract
Disclosed is a modular femoral sizing guide which facilitates the selection and rotational orientation of a femoral prosthetic for a resected femur. The femoral sizing guide has a base which is coupled to the resected femur. An extension portion which is configured to have a pair of feet which are coupled to the posterior surface of the resected femur is rotatably coupled to the base portion. A superstructure having a pair of drilling guides and a stylus is slidably coupled to the base.
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Citations
24 Claims
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1. A femoral sizing guide which facilitates the selection of a femoral prosthetic, the femoral sizing guide comprising:
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an extension portion configured to be placed adjacent to a posterior condyle surface of the femur; a base portion pivotally connected to the extension portion; a first actuator disposed between the extension portion and the base portion, the first actuator rotatably displaces the extension portion with respect to the base portion; a superstructure having a drilling guide slidably coupled to the base portion; and a graduated stylus coupled to the superstructure which is configured to be placed adjacent an anterior condyle surface of the femur. - View Dependent Claims (2, 3, 4, 5, 8)
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6. A femoral sizing guide which facilitates the selection of a femoral prosthetic, the femoral sizing guide comprising:
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an extension portion configured to be placed adjacent to a posterior condyle surface of the femur; a base portion pivotally connected to the extension portion; a first actuator disposed between the extension portion and the base portion, the first actuator being configured to rotatably displace the extension portion with respect to the base portion; a superstructure having a drilling guide slidably coupled to the base portion; and a graduated stylus coupled to the superstructure which is configured to be placed adjacent an anterior condyle surface of the femur, wherein the first actuator comprises a worm gear defining an arcuate slot disposed between the extension portion and the base portion. - View Dependent Claims (7)
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9. A femoral sizing guide which facilitates the selection of a femoral prosthetic, the femoral sizing guide comprising:
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an extension portion configured to be placed adjacent to a posterior condyle surface of the femur; a base portion pivotally connected to the extension portion; a first actuator disposed between the extension portion and the base portion, the first actuator being configured to rotatably displace the extension portion with respect to the base portion; a superstructure having a drilling guide slidably coupled to the base portion; a graduated stylus coupled to the superstructure which is configured to be placed adjacent an anterior condyle surface of the femur; and a second actuator disposed between the superstructure and the base, said actuator being configured to displace the superstructure with respect to the extension portion.
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10. A femoral sizing guide which facilitates the selection of a femoral prosthetic, the femoral sizing guide comprising:
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a foot portion configured to be placed adjacent to a posterior condyle surface of the femur; a base portion having a first coupling mechanism which is rotatably connected to the foot portion to cause relative rotation of the foot portion with respect to the base portion about a rotational axis, said base portion being connected to a second coupling mechanism; a first actuator disposed between the foot portion and base portion, said first actuator being displaced from the rotational axis; a superstructure having a drilling guide slidably coupled to the second coupling mechanism; a graduated stylus coupled to the superstructure which is configured to be placed adjacent an anterior condyle surface of the femur; and a second actuator disposed between the superstructure and the base, said second actuator being configured to displace the superstructure with respect to the base portion. - View Dependent Claims (11, 12, 13, 14, 15)
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16. A femoral sizing guide which facilitates the selection of a femoral prosthetic by measuring properties of a femur having posterior and anterior surfaces, the femoral sizing guide comprising:
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a member defining a posterior condyle engagement surface configured to be placed adjacent to a posterior surface of the femur; a base portion having a first coupling mechanism which is rotatably connected to the member about a rotational axis; a first actuator disposed between the member and base portion, said actuator being displaced from the rotational axis to cause relative rotation of the member with respect to the base portion; a superstructure having a drilling guide slidably coupled to the second coupling mechanism; and a graduated stylus coupled to the superstructure which is configured to be placed adjacent the anterior surface of the femur. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24)
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Specification