Bone plug fixation assembly, expansible plug assembly therefor,

Details Bone plug fixation assembly, expansible plug assembly therefor, Bone plug fixation assembly, expansible plug assembly therefor,

1994-06-14

1996-07-02

Willse, David H.

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

Implantable prosthesis

Bone

623 13, 606 60, 606 62, 606 63, 606 95, 411 24, 411 55, 411 80, A61F 208, A61F 228

Patent

active

055317928

ABSTRACT:
An expansible bone plug assembly comprises a first member closed by a substantially planar surface at one end thereof, the member having a cylindrical outer surface. A central bore extends through the planar surface, and a plurality of longitudinally directed radially extendable fingers form part of the first member. A second member is closed by a hemispherical surface at one end thereof, and has a cylindrical outer surface. A plurality of longitudinally directed radially extendable fingers form part of the second member. The second member fingers are interdigitated with the first member fingers, and bear against the first member and the first member fingers bear against the second member. An axially extensible and retractable compression member extends through the bore and is engaged with the second member for causing the first and second members to be drawn together when the compression member is retracted, so that the fingers of the first and second members are thereby caused to extend radially outwardly.

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