Patent ID: 7708767

Claim:
A medical screw and driver system, comprising: an elongated polymer screw having external threads and an internal bore extending through said screw along at least a portion of the length of said screw, said screw being formed from a biocompatible material and at least partially formed from a bioabsorbable material that is shrinkable upon heating, and said bore having an inner surface that is formed of said bioabsorbable material; and an elongated driver having a non-circular cross-sectional shape approximating the cross-sectional shape of said bore, said driver being insertable into said bore, wherein said inner surface of said bore has been shrunken against said driver and conformed thereto upon heating said screw, thus achieving a closely mating shrink-fit of said bore relative to said driver such that said driver is matingly received within said bore to transfer rotational motion of said driver to said screw.