Leg length gauge for total hip surgery
First Claim
1. A leg length gauge for use during hip joint replacement surgery to insure that the overall length of the patient'"'"'s leg subsequent to the surgery is substantially the same as it was prior to the surgery comprising:
- a first pin adapted to be inserted into a patient'"'"'s ilium;
a second pin adapted to be inserted into a patient'"'"'s femur;
a first member having a leg, said first member including an aperture for receiving one of said first and second pins;
a second member including a first second member aperture for receiving the other of the first and second pins, and a second second member aperture for receiving said first member leg;
said leg extending generally perpendicularly of said first and second pins; and
means for selectively adjustably securing said first member leg within said second second member aperture.
1 Assignment
0 Petitions
Accused Products
Abstract
A leg length gauge for use during hip joint replacement surgery to insure that the overall length of the patient'"'"'s leg subsequent to the surgery is substantially the same as it was prior to the surgery. A first pin is inserted into a patient'"'"'s ilium and a second pin is inserted into the patient'"'"'s femur. A removable gauge including an adjustably coupled pair of members having pin receiving apertures for receiving the first and second pins is positioned on the pins. One member includes a base portion provided with one of said pin receiving apertures and having an elongated leg extending from the base portion. The other member is provided with the other pin receiving aperture and includes a transverse aperture for receiving the elongated leg. The elongated leg is selectively adjustably secured within the transverse aperture by tightening a thumbscrew. When properly oriented, the first pin extends generally vertically from the ilium, the second pin extends generally vertically from the femur and the elongated leg extends generally horizontally between the base portion and the other member.
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Citations
15 Claims
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1. A leg length gauge for use during hip joint replacement surgery to insure that the overall length of the patient'"'"'s leg subsequent to the surgery is substantially the same as it was prior to the surgery comprising:
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a first pin adapted to be inserted into a patient'"'"'s ilium; a second pin adapted to be inserted into a patient'"'"'s femur; a first member having a leg, said first member including an aperture for receiving one of said first and second pins; a second member including a first second member aperture for receiving the other of the first and second pins, and a second second member aperture for receiving said first member leg;
said leg extending generally perpendicularly of said first and second pins; andmeans for selectively adjustably securing said first member leg within said second second member aperture. - View Dependent Claims (2, 3, 4, 5, 6)
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7. In the process of performing hip joint replacement surgery, the improved method of maintaining the original spacing between the ilium and femur comprising:
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positioning the femur in a relatively level position; inserting a first pin into the femur to extend generally vertically therefrom; inserting a second pin into the ilium to extend generally vertically therefrom; creating a removable replica of the spacing between the first and second pins; removing the replica from the pins; replacing the joint joining the ilium and femur; repositioning the femur in a relatively level position; and replacing the replica on the pins to confirm that the original spacing between the femur and ilium has been maintained. - View Dependent Claims (8, 9)
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10. A leg length gauge for use during hip joint replacement surgery to insure that the overall length of the patient'"'"'s leg subsequent to the surgery is substantially the same as it was prior to the surgery comprising:
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a first pin adapted to be inserted into a patient'"'"'s ilium; a second pin adapted to be inserted into a patient'"'"'s femur; a removable gauge including an adjustably coupled pair of members having pin receiving apertures for receiving said first and second pins; one member including a base portion provided with one of said pin receiving apertures and having an elongated leg extending from the base portion; the other member being provided with the other of said pin receiving apertures and including a transverse aperture for receiving the elongated leg;
said leg extending generally perpendicularly of said first and second pins; andmeans for selectively adjustably securing the elongated leg within the transverse aperture. - View Dependent Claims (11, 12, 13, 14, 15)
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Specification