Grid cap bone nail

Abstract

The invention discloses a grid cap bone nail. The grid cap bone nail comprises a bone nail body and a grid-shaped supporting part connected with the top of the bone nail body. The grid-shaped supporting part comprises an outer ring and a connecting part; the outer ring surrounds the top of the bone nail body; the connecting part is radial and extends from the top of the bone nail body to the outer ring so as to connect the top of the bone nail body with the outer ring; the grid aperture of the grid-shaped supporting part is a large hole with the diameter of 2-6 mm. By means of the grid design, stress concentration can be reduced, integration of mucous membrane tissue on the surface of the nail part and tissue below the nail part is facilitated, nutrition can be alternately conveyed, bone regeneration is promoted, and necrosis of the mucous membrane tissue due to ischemia is avoided; after the grid bone nails are implanted, a certain bone regeneration space can be built, bone regeneration materials such as bone meal can be conveyed to a bone regeneration area through the grid structure, the periosteum can be conveniently fixed through the grid structure in the modes such as suturing, and the situation of bone meal and periosteum displacement in a traditional GBR operation is avoided. In the operation, the shape of the grid can be pre-formed according to the defect range.

Description

technical field [0001] The invention relates to the technical field of oral medical instruments, in particular to a grid cap bone screw. Background technique [0002] Insufficient bone quality and bone mass in the edentulous area seriously affect the progress and success rate of implant surgery in oral treatment. At present, titanium nails, titanium mesh, and guided bone regeneration (guided bone regeneration GBR) are commonly used clinically for bone augmentation. Among them, titanium nails can play the role of supporting bone powder and are used to repair small-scale bone defects. The use of titanium mesh can avoid the problems that traditional barrier membranes are difficult to self-form and cannot maintain bone repair space. GBR surgery builds a bone regeneration space through a biological barrier membrane to prevent epithelial cells or fibroblasts from growing into the bone defect area, thereby providing a good regeneration environment for osteoblast-related cells and...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a new type of mesh cap bone screw, which can be used in the bone augmentation treatment process when the bone quality and bone volume of the jaw are insufficient, and can solve the problem of easy displacement of bone powder and poor periosteum retention ability in GBR. The problem

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