Artificial prosthesis for knee arthroplasty

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12263089
APP PUB NO 20210128311A1
SERIAL NO

17247999

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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The present disclosure discloses an artificial femoral prosthesis (100) for knee arthroplasty, a tibial prosthesis (150), a medial femoral unicompartmental prosthesis (201), a lateral femoral unicompartmental prosthesis (301), and a femoral trochlear prosthesis (401). The femoral prosthesis (100) comprises: a medial condyle portion (51) and a medial trochlear portion (131), wherein an articular surface of the medial condyle portion appears in a sagittal section as an arc of a first ellipse (38), and an articular surface of the medial trochlear portion appears in the sagittal section as an arc of a second ellipse or circle (40); and lateral members (91, 141), comprising a lateral trochlear portion (141) and a lateral condyle portion (91), wherein an articular surface of the lateral trochlear portion appears in the sagittal section as an arc of a third ellipse or circle (80), and an articular surface of the lateral condyle portion appears in the sagittal section as an arc of a fourth ellipse (78). The prostheses according to the above embodiments of the present disclosure can better conform to geometric shapes of normal femoral condyles of humans, thereby simplifying greatly design of parameter values for different models of femoral prostheses.

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Patent Owner(s)

Patent OwnerAddress
YANG CHENCHANGCHUN JILIN 130021

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Yang, Chen Jilin, CN 191 455

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