Patent ID: 10016255

Abstract:
The invention concerns a dental surgery device (1), comprising a punching member (15) having a cutting end part (16) suitable for removal of tissue on a jaw bone of a patient, and a guiding sleeve (7) for guiding the punching member (15) during a punching operation. The guiding sleeve (7) has a first side (8) intended to face away from the jaw bone and a second side (9) intended to face towards the jaw bone during a punching operation, and a guiding through-hole (101) extends from the first side (8) to the second side (9). The punching member (15) is adapted to fit into the guiding through-hole (101) such as to allow guidance by the guiding sleeve (7) when the punching member (15) is moved in an axial direction through the guiding through-hole (101). The invention is characterized in that the punching member (15) and the guiding sleeve (7) are provided with complementary guiding means configured to control the axial movement of the punching member (15) through the guiding through-hole (101) during the punching operation, wherein the complementary guiding means comprise at least one guiding element (17) that extends in a radial direction and at least one guiding groove (18) adapted to receive the guiding element (17) and guide its movement along the guiding groove (18), wherein the guiding groove (18) extends both in a circumferential direction as well as in an axial direction such that, when the guiding element (17) and the guiding groove (18) are engaged, a rotation of the punching member (15) in relation to the guiding sleeve (7) forces the punching member (15) to move in relation to the guiding sleeve (7) in the axial direction thereof.