Orthopaedic trauma hip screw assembly and associated method
First Claim
1. A hip screw assembly kit for fixation of a fractured femur, the screw assembly kit comprising:
- a screw for engagement with the femur;
a plate for engagement with the femur;
a barrel defining a cavity therein, said barrel secured to said plate and defining a first stop, said screw including a portion thereof fitted in the cavity of said barrel;
a second stop positionable in said barrel, said second stop providing a limit on the movement of said screw when positioned in said barrel at a first distance away from the first stop, wherein said screw is slideably moveable in the cavity of said barrel along the first distance;
and a third stop positionable in said barrel, said third stop providing a limit on the movement of said screw when positioned in said barrel at a second distance away from the first stop, wherein said screw is slideably moveable in the cavity of said barrel along the second distance, wherein the second distance is greater than the first distance;
and a sleeve positioned between said barrel and said screw.
3 Assignments
0 Petitions
Accused Products
Abstract
A hip screw assembly for fixation of a fractured femur is provided. The hip screw assembly includes a screw for engagement with the femur. The hip screw assembly also includes a barrel defining a cavity in the barrel. The barrel is fixedly secured to the plate. The screw including a portion thereof fitted in the cavity of the barrel. The hip screw assembly also includes a stop positionable in the barrel. The stop provides a limit on the movement of said screw in said barrel. The screw and the barrel have a first arrangement between each other in which the screw slides in the cavity of said barrel a first selectable predetermined distance and a second arrangement in which the screw slides a second selectable predetermined distance. The second distance is greater than the first distance.
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Citations
35 Claims
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1. A hip screw assembly kit for fixation of a fractured femur, the screw assembly kit comprising:
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a screw for engagement with the femur; a plate for engagement with the femur; a barrel defining a cavity therein, said barrel secured to said plate and defining a first stop, said screw including a portion thereof fitted in the cavity of said barrel; a second stop positionable in said barrel, said second stop providing a limit on the movement of said screw when positioned in said barrel at a first distance away from the first stop, wherein said screw is slideably moveable in the cavity of said barrel along the first distance; and a third stop positionable in said barrel, said third stop providing a limit on the movement of said screw when positioned in said barrel at a second distance away from the first stop, wherein said screw is slideably moveable in the cavity of said barrel along the second distance, wherein the second distance is greater than the first distance; and a sleeve positioned between said barrel and said screw. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A hip screw assembly for fixation of a fractured femur, the screw assembly comprising:
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a screw for engagement with the femur, said screw defining a screw longitudinal centerline thereof; a plate for engagement with the femur; a barrel defining a cavity therein, said barrel secured to said plate, said screw including a portion thereof fitted in the cavity of said barrel; and a sleeve rotatably mounted to the screw such that rotation of the sleeve with respect to the screw does not cause axial movement of the sleeve with respect to the screw, the sleeve angularly fixed and slidable within the barrel. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A hip screw assembly kit for fixation of a fractured femur, the screw assembly comprising:
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a screw for engagement with the femur, said screw defining a screw longitudinal centerline thereof; a plate for engagement with the femur; a barrel defining a cavity therein, said barrel secured to said plate; a sleeve defining an opening therethrough, said sleeve positioned at least partially in the cavity of said barrel and rotatably secured to the screw; and a key for selectively angularly fixing said screw and said sleeve. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27, 28, 29, 30)
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31. A method for performing trauma surgery comprising the steps of:
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providing a hip screw assembly with a screw, a sleeve rotatably mounted on the screw such that rotation of the sleeve with respect to the screw does not cause axial movement of the sleeve with respect to the screw, a barrel, a plate, and a keying device; preparing an opening in a bone to receive the screw; determining whether to utilize the keying device depending on patient specific information; and implanting the hip screw assembly onto the bone with the screw at least partially in the bone and with one of with the keying device and without the keying device based on the determining step.
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32. A method for performing trauma surgery comprising the steps of:
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providing a hip screw assembly with a screw, a sleeve rotatably mounted on the screw such that rotation of the sleeve with respect to the screw does not cause axial movement of the sleeve with respect to the screw, a barrel, a plate, and a sliding compression limiting device; preparing an opening in a bone to receive the screw; determining whether to provide sliding compression in the hip screw assembly depending on patient specific information; and implanting the hip screw assembly onto the bone with the screw at least partially in the bone and with one of with the sliding compression limiting device and without the sliding compression limiting device based on the determining step. - View Dependent Claims (33, 34, 35)
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Specification