Bone cement mixing injection system

Abstract

The invention relates to a bone cement stirring injection system, which is mainly composed of a screw handle, a bone cement stirrer, a bone cement injection cylinder and a bone cement outlet pipe; a stirring channel part is arranged inside the shell assembly, and a stirring activity is arranged inside the stirring channel part The stirring movable part is slidingly connected with the stirring channel part, the spiral handle positioning ring is set on the spiral handle, the lower end of the spiral handle is fixedly connected with the piston, the piston is closely connected with the stirring movable part, and the lower end of the stirring movable part is fixedly connected to the blade, inside the main container A push injection outlet assembly is provided; an outlet plane seal is arranged at the outlet of the main container, and an agitator connection interface is arranged at the lower end of the main container for connecting the bone cement agitator and the bone cement injection cylinder. The bone cement mixing and injecting system of the present invention can inject the bone cement into the diseased vertebral body relatively quickly, without causing the situation that the bone cement solidifies before being injected into the diseased vertebral body.

Description

technical field [0001] The invention relates to the field of medical devices, in particular to a bone cement mixing and injecting system used in vertebral body balloon dilatation and plastic surgery. Background technique [0002] Balloon vertebroplasty is a minimally invasive spinal surgery, mainly used in the treatment of vertebral compression fractures, which is the most common complication in patients with osteoporosis, causing local pain and mobility impairment In severe cases, it can also lead to paralysis of the lower limbs. Balloon dilatation of the vertebral body first expands the height of the damaged vertebral body through balloon expansion, and then injects bone cement and other fillers into the diseased vertebral body for filling, thereby enhancing the strength and stability of the diseased vertebral body and enabling recovery. The posterior vertebral body will no longer be compressed and deformed. [0003] Common bolus injection systems in the prior art such a...

AI Technical Summary

Problems solved by technology

However, the existing bone cement mixer and injection system are two parts, the bone cement needs to be stirred by the bone cement mixer, and then passed into the injection system, so the operation process is more complicated; moreover, the bone cement is easy to solidify , when the time control is not good, the bone cement will solidify before it is injected into the diseased vertebral body from the injection system, making it difficult to perform the operation

[0004] In addition, due to the limited length of the bone cement outlet tube of the existing bolus injection system, doctors are exposed to a large amount of radiation during the operation of the bolus injection system in the ward. Although protective plates can be used for protection, there are still certain potential safety hazards

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