Dental implant maxillary sinus lift reamer

Abstract

The invention relates to an osteotome sinus floor elevation reamer for dental implants. The reamer comprises a drill pipe, wherein a power connector is arranged at the tail end of the drill pipe, a hole is formed in the side surface of the front end of the drill pipe, a telescopic rod is arranged in the hole, the outer end of the telescopic rod penetrates out of the side surface of the drill pipe, abrasion patterns are arranged on the outer end surface of the telescopic rod, the inner end of the telescopic rod is hinged with one end of a connecting rod, the other end of the connecting rod is hinged with a rotating disc, the rotating disc is connected with a worm gear through a rotating shaft, the worm gear is meshed with a worm, one end of the worm penetrates out of the dill pipe, and a counterbore is formed in the end. The reamer has the obvious advantages as follows: the telescopic rod can stretch or retract, the local reaming requirement of the tail ends of drilled holes can be met, more bone substances can be arranged, the implanting success rate is high, and the reamer is safe.

Description

technical field [0001] The invention relates to an oral medical operation instrument, in particular to a drill bit for dental implantation. Background technique [0002] The maxillary sinus lifting bone grafting technique has become one of the clinical techniques for oral implantology. The internal lifting bone grafting technique artificially fractures the bone below the maxillary sinus. During the operation, a hole is drilled from the alveolar ridge to the bottom of the maxillary sinus, but the periosteum cannot be destroyed. , the accident of penetrating the maxillary sinus occurred. At present, the method of drilling and tapping is not safe enough. Another disadvantage is that the area of ​​the hole is small and the success rate of implantation is low. Because the larger the hole, the more bone is filled, and the success rate of implantation is higher. Higher, if the method of drilling a large straight hole is used, the trauma surface of the person will be large and the i...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a lifting and reaming drill in the maxillary sinus of the implant in order to solve the shortage that the existing drill bit cannot achieve local reaming at the end.

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