Medical slight contact type plate screw system

Abstract

The invention relates to a medical slight contact type plate screw system, and aims to solve the problem that as an ordinary steel plate generates a stress shielding effect and the bone contact area is overlarge, local blood supply is impacted in the prior art. The medical slightly contact type plate screw system comprises a steel plate used for fixing a bone, and a bridging screw, wherein a support screw is arranged between the steel plate and the bone to be fixed; the support screw is screwed into the bone to ensure that a clearance is formed between the steel plate and the bone; the bridging screw is used for connecting and fixing the steel plate, the support screw and the bone. Through the adoption of a slight contact biological type fixing manner, the plate screw system has the advantages that the stress shielding effect is reduced to a great extent; due to the clearance between steel plate and the bone, convenience is brought for ingrowth of a blood vessel and a repaired tissue; as the plate screw system can be fixed outside a periosteum, convenience is brought for minimally invasive surgery; as the bridging screw is used for connecting and fixing the steel plate, the support screw and the bone, the fixing effect is enhanced, and the healing process is accelerated; the structure is simple; the operation is convenient.

Description

technical field [0001] The invention relates to the field of medical devices, in particular to a medical micro-contact plate screw system. Background technique [0002] The previous principle of fracture treatment emphasized anatomical reduction and strong internal fixation, but the stress shielding effect caused by too strong internal fixation often changes the local bone density, which is easy to cause re-fracture after the removal of the plate, and too strong internal fixation and too strong internal fixation Large-area plate and bone bonding surface can cause further damage to local blood supply and affect bone healing. Therefore, the concept of biological fixation has gradually become dominant in recent years. Protecting the blood supply of soft tissue, proper and stable fixation and allowing partial stress conduction of the bone all play a positive role in the healing of the fracture. Allowing repair tissues such as blood vessels and callus to grow into the fixation n...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a medical micro-contact plate and screw system for solving the stress shielding effect produced by ordinary steel plates in the prior art and the excessive contact area with bone affecting local blood supply. The plate and screw used for fixation are firmly integrated, which greatly reduces the contact area with the bone, and can be placed outside the periosteum, allowing blood vessels and regenerative tissue to grow into the plate and bone while providing firm fixation gaps between the

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