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113 results about "Oval facial shape" patented technology

3D (three-dimensional) printing artificial cervical disc prosthesis

The invention discloses a 3D (three-dimensional) printing artificial cervical disc prosthesis which comprises a prosthesis upper end plate, a prosthesis lower end plate and a prosthesis nucleus pulposus. The prosthesis nucleus pulposus is arranged between the prosthesis upper end plate and the prosthesis lower end plate, the prosthesis upper end plate, the prosthesis lower end plate and the prosthesis nucleus pulposus are connected in a mutually matched manner, a first microporous surface is arranged on the upper surface of the prosthesis upper end plate, first inverted teeth are distributed on the first microporous surface, a second microporous surface is arranged on the lower surface of the prosthesis lower end plate, and second inverted teeth are distributed on the second microporous surface. The prosthesis nucleus pulposus comprises an elliptical base. The prosthesis has the advantages that the prosthesis is designed by reverse technology, design is completely bionic design, three-dimensional anatomic forms of the prosthesis end plates are completely fitted with those of vertebral end plates, grinding of the upper end plate and the lower end plate is almost omitted when the prosthesis is implanted, and completeness of the vertebral end plates is retained. The prosthesis can be rapidly manufactured by 3D printing technology, an implanting process can be simplified in practical application, surgical time is shortened, and surgical safety is improved.
Owner:XIAN HONGHUI HOSPITAL
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