Corrector for joint replacement
A joint replacement and corrector technology, which is applied in the field of medical devices for total knee replacement surgery, can solve the problems that the parallel line and the condylar line cannot be accurately consistent, and there is no adjustment tool, so as to achieve the effect of improving the calibration accuracy and being easy to grasp
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Embodiment 1
[0049] This embodiment provides a corrector for joint replacement, such as Figure 4-5 As shown, including a body 10, a pair of reference holes 1 and several pairs of adjustment holes 2, 3, 4, 5, 6, 7 are provided on the body 10, and the distance between the pairs of reference holes 1 is set so that it It is suitable to be sleeved on the fixed nails to be adjusted at the same time; the line connecting the centers of the paired reference holes 1 and the paired adjustment holes 2, 3, 4, 5, 6, 7 closest to their inclination The angle difference between the lines connecting the centers of the circles is ≤2°, and the angle difference between the lines connecting the centers of any two pairs of the adjustment holes 2, 3, 4, 5, 6, and 7 with the closest inclination degree is ≤ 2°; Including an inclinometer structure installed on the body 10, used to measure the angle difference between the condylar line and the line connecting the centers of the paired reference holes 1; The first s...
Embodiment 2
[0060] This embodiment provides a method for using a corrector for joint replacement, refer to Figure 4 shown, including the following steps:
[0061] S1 Set a pair of reference holes 1 on the body 10 on a pair of fixing nails to be adjusted;
[0062] S2 uses the tilt measuring structure to measure the angle difference between the condyle line and the line connecting the centers of a pair of reference holes 1, and finds the line connecting the centers of the circle and the line connecting the centers of the reference holes 1 having the same or the closest angle difference A pair of adjustment holes;
[0063] S3 Reset new fixing nails at the found positions of the pair of adjustment holes 2, 3, 4, 5, 6, 7.
[0064] The use method of the corrector for joint replacement in this embodiment can more accurately adjust the setting position of the fixing nails when the line connecting the two fixing nails is not parallel to the condylar line, so that the adjusted connecting line of...
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