Dental implant surgical drill guide device

Abstract

The present invention provides a dental implant surgical drill guide device. The dental implant surgical drill guide device comprises: a body portion extending in a longitudinal direction in a cylindrical shape having a first diameter; a neck portion having a second diameter and extending in the longitudinal direction from an end of one side of the body portion; and an extension portion having a third diameter, extending in the longitudinal direction from an end of the other side of the body portion, and having a stepped structure with the body portion. The body portion, the neck portion, and the extension portion are formed integrally. The size of the third diameter is formed to be smaller than the size of the first diameter and larger than the size of the second diameter. The dental implant surgical drill guide device comprises a guard portion extending in the longitudinal direction in a cylindrical shape having a fourth diameter formed to be larger than the first to third diameters, the guard portion being formed to surround the body portion, the neck portion, and the extension portion by the outer surface thereof, having an empty space defined by the inner surface thereof, and guiding inflow and outflow of washing water. The guard portion comprises: a space portion spaced apart from outer surfaces of the body portion and the neck portion by a predetermined interval; and an engaging portion disposed on the lower end of the guard portion so as to protrude from the lower end to the inner surface and to be fitted/coupled to the stepped structure of the extension portion. The space portion comprises: a first space portion formed between the outer portion of the body portion and the inner surface of the guard portion such that the upper portion thereof is exposed; and a second space portion formed between the outer portion of the neck portion and the inner surface of the guard portion such that the lower portion thereof is blocked by fitting/coupling between the extension portion and the engaging portion. The width of the first space portion may be formed to be larger than the width of the second space portion, and the width of the engaging portion may be formed equal to the width of the extension portion.

Dependencies are inferred from the claim text.