Prosthesis (i.e. – artificial body members) – parts thereof – or ai – Implantable prosthesis – Bone
Patent
1993-06-16
1995-04-11
Green, Randall L.
Prosthesis (i.e., artificial body members), parts thereof, or ai
Implantable prosthesis
Bone
A61F 230
Patent
active
054053935
ABSTRACT:
A temporomandibular joint prosthesis comprising a cranial prosthesis-part comprising a support surface adapted to be seated against bone tissue in the area of and/or adjacent to the natural glenoid fossa and/or the articular eminence and a mandibular prosthesis-part adapted to be pivotable relative to the cranial prosthesis-part when in implanted condition. The mandibular prosthesis-part is pivotable about a center of rotation which is located in such a position relative to the support surface of the cranial prosthesis-part, that in implanted condition the center of rotation is located substantially inferior to the center of the natural mandibular condyle.
The prosthesis allows a natural combination of rotation and translation of the mandibular condyle in spite of the loss of the function of the lateral pterygoid muscles.
REFERENCES:
patent: 3488779 (1970-01-01), Christensen
patent: 4693722 (1987-09-01), Wall
patent: 4917701 (1990-04-01), Morgan
Kent, John N. et a., "Temporomandibular Joint Condylar Prosthesis: A Ten-year Report", Journal of Oral Maxillofacial Surgery, vol. 41, pp. 245 through 254, 1983.
Kiehn, Clifford L. et al., "Total Prosthetic Replacement of the Temporomandibular Joint", Annals of Plastic Surgery, vol. 2, No. 1, Jan. 1979, pp. 5 through 15.
Academisch Ziekenhuis Groningen
Green Randall L.
Jones Mary Beth O.
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