System for positioning a cutting guide in knee surgery
First Claim
1. A system for positioning a cutting guide on a femur of a knee to make a cut along a distal end of the femur during a surgical procedure on the knee, the system comprising:
- an adjustable femoral attachment member configured to attach to a cut distal end of the femur, the femoral attachment member comprising;
a medial elevator for adjusting an amount of space between a medial portion of the femoral attachment member and the cut distal end of the femur;
a lateral elevator for adjusting an amount of space between a lateral portion of the femoral attachment member and the cut distal end of the femur; and
a single adjustment member configured to adjust both the medial and lateral elevators along a first axis and translate a portion of the single adjustment member along a second axis, perpendicular to the first axis, in response to manipulation of an input to the single adjustment member;
a cutting guide removably attachable to the femoral attachment member and configured to guide a surgical saw to make an additional cut on the distal end of the femur; and
a force sensor for positioning between the femoral attachment member and a proximal end of a tibia of the knee, wherein the force sensor comprises a medial portion for sensing a medial force in the knee and a lateral portion for sensing a lateral force in the knee.
1 Assignment
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Accused Products
Abstract
A system is provided for positioning a cutting guide on a femur of a knee to make a cut along a distal end of the femur during knee surgery. The system may generally include an adjustable femoral attachment member configured to attach to a cut distal end of the femur, a cutting guide removably attachable to the femoral attachment member and configured to guide a surgical saw to make an additional cut on the distal end of the femur, and a force sensor for positioning between the femoral attachment member and a proximal end of a tibia of the knee. The force sensor may include a medial portion for sensing a medial force in the knee and a lateral portion for sensing a lateral force in the knee.
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Citations
24 Claims
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1. A system for positioning a cutting guide on a femur of a knee to make a cut along a distal end of the femur during a surgical procedure on the knee, the system comprising:
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an adjustable femoral attachment member configured to attach to a cut distal end of the femur, the femoral attachment member comprising; a medial elevator for adjusting an amount of space between a medial portion of the femoral attachment member and the cut distal end of the femur; a lateral elevator for adjusting an amount of space between a lateral portion of the femoral attachment member and the cut distal end of the femur; and a single adjustment member configured to adjust both the medial and lateral elevators along a first axis and translate a portion of the single adjustment member along a second axis, perpendicular to the first axis, in response to manipulation of an input to the single adjustment member; a cutting guide removably attachable to the femoral attachment member and configured to guide a surgical saw to make an additional cut on the distal end of the femur; and a force sensor for positioning between the femoral attachment member and a proximal end of a tibia of the knee, wherein the force sensor comprises a medial portion for sensing a medial force in the knee and a lateral portion for sensing a lateral force in the knee. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A device for positioning a cutting guide on a femur of a knee during a surgical procedure on the knee, the device comprising:
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a stationary femoral member that attaches to a cut distal end of the femur; an adjustable femoral member moveably attached to the stationary femoral member; a medial elevator for adjusting a distance between the stationary and adjustable femoral members closer to a medial edge of the device than a lateral edge of the device; a lateral elevator for adjusting a distance between the stationary and adjustable femoral members closer to the lateral edge of the device than the medial edge of the device; and a single adjustment member configured to move at least one of the medial and lateral elevators along a first axis and translate a portion of the single adjustment member along a second axis, perpendicular to the first axis, in response to manipulation of an input to the single adjustment member. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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Specification