Device especially for endoosseous implantation

Claim 1

A device for endoosseous implantation, comprising a plate member insertable into a surgical fissure provided into the cancellous tissue of the jaw bone, below the cortical tissue of the jaw bone, said plate member having on its oral cavity facing edge an appendix with, at its free end, a threaded portion emerging into the oral cavity, at least one through hole provided in said plate member and at least one stabilising bar engaging within said at least one hole and extending transverse to said plate member, said stabilizing bar being insertable into a respective surgical transcortical channel and having its ends supported by the vestibular cortical tissue and the lingual cortical tissue of the jaw bone respectively and positioning means removably connectable to said plate member for the preparation of said trascortical channel in alignment with said hole and for inserting said stabilising bar therein and in said hole, wherein said positioning means comprise a bridge element having an arm including connecting means for removable rigid connection with said plate member, said bridge element further comprising, on the side opposite said arm, at least one guide cylinder comprising an inner through cavity the axis of which is in alignment with the axis of said at least one hole when said positioning means is fixed on said plate member, said removable connecting means comprising a bush in said arm and engaging with said appendix and a threaded plug for removable engagement with the threaded portion of said appendix and wherein said removable connection means further comprise a pair of wedge projections on that edge of said plate element from which said appendix extends, and a pair of conjugate cavities provided in said arm.

Claim 2

A device for endoosseous implantation, comprising a plate member insertable into a surgical fissure provided into the cancellous tissue of the jaw bone, below the cortical tissue of the jaw bone, said plate member having on its oral cavity facing edge an appendix with, at its free end, a threaded portion emerging into the oral cavity, at least one through hole provided in said plate member and at least one stabilising bar engaging within said at least one hole and extending transverse to said plate member, said stabilizing bar being insertable into a respective surgical transcortical channel and having its ends supported by the vestibular cortical tissue and the lingual cortical tissue of the jaw bone respectively and positioning means removably connectable to said plate member for the preparation of said trascortical channel in alignment with said hole and for inserting said stabilising bar therein and in said hole, wherein said positioning means comprise a bridge element having an arm including connecting means for removable rigid connection with said plate member, said bridge element further comprising, on the side opposite said arm, at least one guide cylinder comprising an inner through cavity the axis of which is in alignment with the axis of said at least one hole when said positioning means is fixed on said plate member, said removable connecting means comprising a bush in said arm and engaging with said appendix and a threaded plug for removable engagement with the threaded portion of said appendix and wherein said removable connection means further comprise a pair of wedge projections on that edge of said plate element from which said appendix extends, and a pair of conjugate cavities provided in said arm.