| 摘要 |
The invention relates to a method for carrying out a percrestale sinus lift, wherein a bore channel is created with the aid of a boring, milling and/or hammering method, the Schneider membrane is lifted from the jaw bone using a flowable medium that is supplied via the opened bore channel, bone replacement material is introduced, a supply line is introduced into the bore channel prior to introducing the flowable liquid and is sealingly fixed in a detachable manner to the bore channel or onto the edge thereof and the flowable medium in introduced through the supply line. The invention also relates to a surgical instrument (1) for introducing a flowable medium for lifting the Schneider membrane from the jaw bone whilst carrying out a percrestale sinus lift. Said instrument comprises a supply line that can be introduced into the bore channel and that has at least one sealing element for sealing and detachably fixing the supply line to the bore channel or to the edge thereof, a displaceable sleeve (4) on the supply line is guided in the axial direction in relation to the supply line and the sealing element (7) is arranged between a front surface of the sleeve (4) and a surface, preferably a ring surface (6), protruding in the radial direction from the supply line, and can be deformed by axially pressing the sleeve (4) in the radial direction and can be pressed counter to the inner wall of the bore channel (3). |
