Method and apparatus for femoral resection
First Claim
1. A resecting system for resecting a distal human femur for receiving a distal femur prosthesis comprising:
- positioning means for positioning a resecting apparatus on a distal human femur, the positioning means having a positioning body comprising;
a front surface for contacting a human femur;
a tongue extending from a lower end of the positioning body for extending under a human femur;
attachment means for attaching the positioning body to a distal human femur;
angular adjustment means for adjusting the angle of the positioning means comprising;
an adjustment body;
a rod extendable through the adjustment body and into a distal human femur;
attachment means for attaching the angular adjustment means to the positioning means;
rotational alignment means comprising;
an alignment body;
a shaft extending from the alignment body;
attachment means for attaching the rotational alignment means to the positioning means;
pattern means for describing a resection pattern comprising;
opposing pattern plates having cutting paths described therethrough, the cutting paths matching an interior profile of a distal femoral prosthesis;
support means for supporting the opposing pattern plates;
attachment means for attaching the support means to the rotational alignment means for rotating the pattern means;
fixing means for fixing the opposing pattern plates to a side of a distal femur;
cutting means extending through the cutting paths of the pattern means, the cutting means movable along the cutting paths for cutting a distal femur to resect a distal femur.
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Accused Products
Abstract
A distal femur resecting apparatus for use in the preparation of a human distal femur for the implantation of a human femoral prosthesis. The resecting apparatus includes a positioning apparatus and a pattern device. The positioning apparatus includes a positioning block for attachment to a femur, an adjustment block having an intermedullary rod extending into the femur, and a rotational alignment device for attachment of the pattern device to the positioning apparatus. The pattern device comprises an individual or pair of mediolaterally located plates having a cutting path described therethrough similar in shape to the interior profile of a human femoral prosthesis. The cutting path guides a reciprocating, oscillating, or rotating cutting tool along a path for removing material from some or all of the distal femur to shape the distal femur to accept a distal femoral prosthesis.
377 Citations
19 Claims
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1. A resecting system for resecting a distal human femur for receiving a distal femur prosthesis comprising:
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positioning means for positioning a resecting apparatus on a distal human femur, the positioning means having a positioning body comprising; a front surface for contacting a human femur; a tongue extending from a lower end of the positioning body for extending under a human femur; attachment means for attaching the positioning body to a distal human femur; angular adjustment means for adjusting the angle of the positioning means comprising; an adjustment body; a rod extendable through the adjustment body and into a distal human femur; attachment means for attaching the angular adjustment means to the positioning means; rotational alignment means comprising; an alignment body; a shaft extending from the alignment body; attachment means for attaching the rotational alignment means to the positioning means; pattern means for describing a resection pattern comprising; opposing pattern plates having cutting paths described therethrough, the cutting paths matching an interior profile of a distal femoral prosthesis; support means for supporting the opposing pattern plates; attachment means for attaching the support means to the rotational alignment means for rotating the pattern means; fixing means for fixing the opposing pattern plates to a side of a distal femur; cutting means extending through the cutting paths of the pattern means, the cutting means movable along the cutting paths for cutting a distal femur to resect a distal femur. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A system for resecting a femur comprising:
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positioning means for contacting a femur; support means interconnected with the positioning means; pattern means interconnected with the support means, the pattern means comprising opposing pattern plates positionable along sides of a femur; cutting path means described in the pattern plates, the cutting path means matching an interior profile of a distal femoral prosthesis; and cutting means coacting with the cutting path means for cutting a distal femur. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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17. A method for resecting a human femur comprising the steps of:
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inserting a rod through an adjustment block into a human femur; attaching a positioning block to the adjustment block; affixing the positioning block to a human femur; interconnecting a rotational alignment device to the positioning block; interconnecting a support means with the rotational alignment device, the support means supporting pattern plates having cutting paths described therethrough; positioning the pattern plates along sides of a femur; affixing the pattern plates to a femur; removing the positioning block, the alignment device and the adjustment block from the support means; inserting a cutting means through the cutting paths described in the pattern plates; and
tracing the cutting means along the cutting paths described in the pattern plates to resect a femur. - View Dependent Claims (18, 19)
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Specification