Patent ID: 6431862
Filing Date: 2002-08-13
Classification: A61C

Abstract:
A connection pin for a socket connection for fastening dental crown or jaw segments to a model base, with a fixing shank and a socket shank, which socket shank can be inserted releasably into a seat in a guiding sleeve which is accommodated in the model base, the fixing shank having a slot running in the longitudinal direction of the connecting pin and extending over the axial length of the fixing shank, which slot divides the fixing shank into at least two spaced-apart, flexible shank parts, and the radially outer surface area of the fixing shank, not loaded by external forces, having a variable radius as viewed along the length of the fixing shank, whereinthe surface area of the fixing shank, not loaded by the external forces, runs approximately conically, and the surface area, in relation to a cylindrical envelope whose radius corresponds to the maximum radial distance of the surface area from the longitudinal axis, forms a radial undercut at least in the area of the smallest radius of the surface area, and the surface area of the fixing shank being configured to be reduced by compression to a cylindrical shape so as to be insertable into a cylindrical borehead comprising the seat of the guiding sleeve, wherein the slot thickness in the area of the free-end face of the fixing shank is greater than, or equal to, the sum of radially opposite undercuts in the area of the smallest radius of the surface area.