Aspirator capable of collecting autogenous bone particle

Abstract

The invention relates to an aspirator capable of collecting autogenous bone particles, which is formed by a detachable aspirator head, a micro-filter and a negative-pressure connecting pipe. The micro-filter is provided with an inner pipe and an outer pipe. The rear end of the aspirator head is installed on the inner wall of the front end of the outer pipe of the micro-filter. The front end of the negative-pressure connecting pipe is installed on the inner wall of the rear end of the outer pipe of the micro-filter. The rear end of the negative-pressure connecting pipe is connected with the negative pressure of a dental unit. An impeller is installed at the front end of the inner pipe of the micro-filter and is connected with two circular fixed discs through a columnar shaft. Bearings are arranged at the junction. The circular fixed discs are welded on the inner wall of the inner pipe. A double-walled funnel is welded on the outer wall of the inner pipe and a bone particle collector is installed at the rear end of the double-walled funnel. The aspirator not only has the functions of a common oral aspirator such as aspirating autogenous bone particles, soft tissue debris, sputum and the like in time but also can automatically filter and collect the autogenous bone particles. Moreover, the pollution caused by sputum microorganisms to the autogenous bone particles is reduced and the autogenous bone particles are prepared for use in bone transplantation.

Description

technical field [0001] The invention belongs to the field of medical appliances, and in particular relates to an aspirator capable of collecting autologous bone particles during oral clinical treatment. Background technique [0002] Oral implant surgery often requires guided bone regeneration (Guided BoneRegeneration, GBR) due to bone defects, and bone graft materials are one of the key factors for the success of GBR technology. Currently commonly used bone graft materials include: autologous bone, allograft bone, xenograft bone and synthetic materials. Autologous bone is considered the "gold standard" of bone graft material because of its good osteogenic, osteoinductive, and osteoconductive properties. However, autologous bone transplantation has disadvantages such as limited bone source and increased chances of trauma and infection. Therefore, the effective collection and utilization of the residual jaw bone produced during implant drilling during oral implant surgery is ...

AI Technical Summary

Problems solved by technology

However, autologous bone transplantation has disadvantages such as limited bone source and increased chances of trauma and infection. Therefore, the effective collection and utilization of the residual jaw bone produced during implant drilling during oral implant surgery is the most effective way to reduce the trauma of implant surgery and reduce the economic burden of patients. one of the methods

The diameter of the autogenous bone debris from implant drilling during the implant surgery is 0.5-1.5 mm. At present, the suction device commonly used in the department of stomatology can only extract the remaining bone of the jaw, saliva, and external liquid during the implant surgery. Aspirate, but cannot effectively separate and collect remaining bone particles

At present, the aspirators used in this area at home and abroad all adopt the filtering principle to collect bone powder, such as domestic aspirators (patent No. 200820085498.6), although these aspirators can collect large granular autologous bones during the aspiration process, there are still a large amount of fine particles and The powdery autologous bone powder is attracted and lost, or causes disadvantages such as clogging the suction device; in addition, when these suction devices collect bone particles, the bone particles are mixed with saliva and soft tissue fragments, which will increase the chance of microbial contamination of the bone particles, thereby affecting Osteogenic quality of collected bone particles

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