Fastener and method of installation
OwnerMichael Remoinventor
Life of this patent
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Abstract
The invention is a fastener for medical or dental use which requires minimal preparation of a site in bone. According to one embodiment the fastener includes a shank and a head having an aperture with a torque-receiving aperture such as a threaded hole or a polygon such as a hex-sided hole. The other end of the shank is a blunt or a sharp point. Another embodiment includes a radially spaced apart series of splines each having a linearly spaced apart series of barbs. An alternative embodiment includes on the shank a radially spaced apart series of linear arrays of barbs emerging from the shank itself. The linear spacings may be staggered from one radial line to the next so that as a whole the barbs are arranged into one or more continuous helicies.
Claims9
A fastener comprising
- a shank with a head at its first end and a point at its second end,
- said head further comprising a torque receiving aperture,
- said shank defining an axis,
- said fastener further comprising
- a plurality of splines angularly spaced apart around said axis, with each of said splines defining a midplane passing through said axis, and
- a linear array of barbs arising in common from at least one from among said splines, with at least one barb from among said linear array of barbs further comprising an arcuate membrane bending away from said midplane.
Dependencies are inferred from the claim text.