Beijing Naton Medical Technology Holdings Co., Ltd.

Tianjin Zhengtian Medical Instrument Co., Ltd

Beijing Naton Medical Technology Research Institute Co. Ltd.

Shufu Xu

Xiang Dong

Dayong Song

Senyuan Hu

Jian Wang

Xun Zhang

Xuedong Zhang

Haiyuan Wu

Yalong Dong

Chao Zhen

Zhihua Xu

An artificial vertebral body includes a housing, a rotating body and a support member; an inner peripheral surface of the housing is provided with a first cooperating portion. The rotating body is rotatably disposed in the housing, an outer peripheral surface of the rotating body being provided with a second cooperating portion; the first cooperating portion can cooperate with the second cooperating part to restrict the rotation body to only rotate clockwise or counterclockwise; the support member passes through the rotating body and is screwed together with the rotating body; and the rotating body can rotate relative to the housing to drive the support member to move along the axial direction of the rotating body.

Artificial vertebral body

A pad prosthesis includes a body, a protrusion portion and a snap. The body has a first surface, and the first surface includes a front edge, a curved edge, a rear edge and a straight edge connected sequentially. The protrusion portion is arranged on the first surface of the body. The snap is arranged on the first surface of the body, and the snap extends along a second direction, an angle between the second direction and the first direction is an acute angle. The pad prosthesis according to the present application may be applied in an artificial knee prosthesis.

Pad prosthesis and artificial knee prosthesis having same

A femoral prosthesis and a knee prosthesis are provided. The femoral prosthesis includes a condyle surface having a first surface section contacting a tibial joint surface over a first range of flexion angles and a second surface section contacting the tibial joint surface over a second range of flexion angles; the first range of flexion angles from a first to a second flexion angle; the second range of flexion angles from the second to a third flexion angle; the first flexion angle selected from &#x2212;20&#xb0; to 0&#xb0;, the second flexion angle selected from 45&#xb0; to 75&#xb0;, the third flexion angle selected from 50&#xb0; to 90&#xb0; and the third flexion angle greater than the second flexion angle; the first surface section having a radius of curvature of a constant length, and the second surface section having a radius of curvature that decreases from a front end to the rear end.

Femoral prosthesis and knee prosthesis

Growing community of inventors

Beijing, China

Shufu Xu