Prosthesis (i.e. – artificial body members) – parts thereof – or ai – Implantable prosthesis – Bone
Patent
1996-09-25
1998-04-07
Willse, David H.
Prosthesis (i.e., artificial body members), parts thereof, or ai
Implantable prosthesis
Bone
606 73, A61F 228, A61B 786
Patent
active
057358982
ABSTRACT:
A method for supporting a prosthesis or part thereof on bone tissue utilizes an anchoring element (1) that is substantially rotationally symmetrical and is provided with external threads (20) and a central bore (2). At least one slit (3, 4, 5, 6) is arranged in spiral form around the longitudinal axis (13) of the element (1), extending through and over at least the major part (11, 12) of the outer wall of the element to communicate with the central bore. The major part is provided with external threads (20), and the spirality of the slits (3, 4, 5, 6) is the same as that of the outer threads (20). After drilling a hole to completion in bone tissue, an inner end portion of element (1) is forced into the hole while rotating element (1) and utilizing the external threads to cut complementary internal threads in the bone tissue. The prostheses or parts thereof are then secured to the outer end portion of element (1).
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patent: 4537185 (1985-08-01), Stednitz
patent: 4842518 (1989-06-01), Linkow et al.
patent: 4978350 (1990-12-01), Wagenknecht
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patent: 5062851 (1991-11-01), Branemark
patent: 5108443 (1992-04-01), Branemark
patent: 5133762 (1992-07-01), Branemark
patent: 5176709 (1993-01-01), Branemark
patent: 5194000 (1993-03-01), Dury
patent: 5489308 (1996-02-01), Kuslich et al.
Medevelop AB
Willse David H.
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