Percutaneous bone grafting apparatus

Abstract

The invention discloses a percutaneous bone grafting apparatus, which belongs to an apparatus for grafting a bone in an orthopedic operation. The percutaneous bone grafting apparatus comprises a bone grafting sleeve, a soft tissue separation cone and a drive-in device; a body of the bone grafting sleeve has a hollow structure, one end of the bone grafting sleeve is provided with a feeding hole, the sleeve wall above the feeding hole is trumpet-shaped, and the sleeve wall under the feeding hole is groove-shaped; a body of the soft tissue separation cone has a hollow structure, the head of the soft tissue separation cone is of a blunt circle, and the tail is provided with a conical cap; and a drive-in device body has a T-shaped structure, the head of the drive-in device body is provided with a propulsion platform, and the tail is provided with a drive-in platform. Three apparatuses form a set; the apparatus is combined and used with a Kirschner wire and closed reset inner fixing technology; and under the guide of the Kirschner wire, a hollow soft tissue separator is guided into the bone grafting sleeve, and a bone grafting material is pushed to a destination bone grafting area by using a handle so as to achieve the purpose of percutaneous bone grafting. The percutaneous bone grafting apparatus protects blood circulation around fracture, promotes fracture healing, and can effectively repair bone defects, enhance the bone grafting effect and accelerate limb recovery of patients. The apparatus has a simple structure, is convenient to use, and realizes the purpose of closed bone grafting.

Description

Technical field [0001] The invention relates to a device for bone grafting in orthopedic surgery, in particular to a group of percutaneous bone grafting devices. Background technique [0002] With the development of surgical technology and the accelerated pace of modern people's life, more fracture patients are willing to accept surgery. Since the 1960s, biomechanics has gradually penetrated into the field of orthopedics, which has changed the understanding of the traditional principles and methods of fracture internal fixation. Therefore, the international internal A fixed society (AO organization) appeared and was widely promoted. However, after more than 30 years of development and a large amount of clinical experience, fracture treatment under the guidance of the AO principle has some cases of delayed union, nonunion, re-fracture and other complications. The principles of internal fixation are increasingly being questioned. In response to the above problems, many scho...

AI Technical Summary

Problems solved by technology

The previous bone grafting technique had to cut open and expose the fracture end, which violated the principle of BO technique, which not only affected the healing of the fracture, but also increased the surgical trauma and damaged more muscle tissue; A more tense state; affecting the recovery of the patient's limb function

There are currently no surgical instruments specifically designed to close bone grafts

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