Prosthetic bone or tooth implant and a method of surgically impl

Details Prosthetic bone or tooth implant and a method of surgically impl Prosthetic bone or tooth implant and a method of surgically impl

1981-06-04

1988-03-01

Apley, Richard J.

Prosthesis (i.e., artificial body members), parts thereof, or ai

Implantable prosthesis

Bone

623 18, 433177, A61F 228

Patent

active

047283300

ABSTRACT:
A prosthetic bone or tooth implant device is disclosed which includes a generally U-shaped cap portion (69) with an upper convex surface. The implant used in bone prosthesis after an osteotomy is performed by an elongated osteotome (30) having a blade comprised of at least one curved portion (38) and at least one flange portion (42). The underside of the U-shaped cap conforms identically to the shape of the osteotome blade, so that when the device is implanted its lower surface will lay perfectly flush against the surface of the bone which has been cut. The implant is affixed to the bone by means of a pin (62) connected at one end to the underside of the implant and which is inserted at its other end into the medullary canal (55) within the bone which has been severed. In order to permit the implant to be used even when the osteotomy is angular the pin is connected to the cap of the implant by means of a ball (67) and socket joint, a universal hinge or an integral hinge which utilizes its natural flexibility to swing the cap to a variety of implant positions. The pin is made of compressible material in order that it can be inserted within the canal and expand after insertion to secure the implant to the bone. A plurality of pin structures are disclosed which provide different methods of securing the implant to the osteotomy.

REFERENCES:
patent: 544389 (1895-08-01), Seeger
patent: 2258207 (1941-10-01), Irwin
patent: 2668531 (1954-02-01), Haboush
patent: 2781758 (1957-02-01), Chevalier
patent: 3879767 (1975-04-01), Substad
patent: 4170990 (1979-10-01), Baumgart et al.

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