A non-leakage baffle type vertebral body shaper

Abstract

The invention relates to a non-leakage baffle type vertebroplaster, which comprises an instrument part on which a repairing implant rod is connected, and is characterized in that: the instrument part includes a support tube, and the front end of the support tube passes through The push rod assembly is connected with a guide assembly, and the rear end of the support tube is provided with a limit assembly. At the same time, the guide assembly includes a guide tube, the front end of the guide tube is fixed with a baffle plate, the two sides of the guide tube are provided with outlets, and the inner wall of the guide tube is provided with guide rails. In this way, relying on the instrument part and the repair implant rod of a vertebroplasty without leakage baffle, the vertebral body bone repair can be effectively performed. At the same time, the repaired implant rod is solid, which can completely solve the problem of bone cement leakage and eliminate the corresponding risks of bone cement leakage. Thus, the loss of long-term vertebral body height after operation is avoided. Furthermore, the present invention has reasonable structure, simple and convenient operation, and is convenient for popularization and use.

Description

technical field [0001] The invention relates to a shaper, in particular to a non-leakage baffle type vertebral body shaper. Background technique [0002] Vertebroplasty is a new minimally invasive spinal surgery, mainly used for the treatment of vertebral compression fractures in osteoporosis, primary or metastatic vertebral tumors and other diseases. At present, bone cement injection is mainly used, including percutaneous Vertebroplasty (percutaneous vertebroplasty, PVP) and kyphoplasty (percutaneous kyphoplasty, PKP) two. PVP is to inject bone cement into the vertebral body without space under the condition of high pressure; PKP is to expand the cavity in the vertebral body through the bone expander, and inject bone cement into the vertebral body cavity under low pressure, and the leakage is relatively small. Limitations, its security is greatly improved compared to PVP. However, neither PVP nor PKP can avoid the risk of bone cement leakage. Bone cement leakage may have...

AI Technical Summary

Problems solved by technology

However, neither PVP nor PKP can avoid the risk of bone cement leakage

Bone cement leakage may have the following serious consequences: (1) Leakage to the back of the vertebral body and into the spinal canal and nerve root canal may cause spinal cord nerve compression and damage resulting in paralysis; (2) Fatal pulmonary embolism may cause bone cement injection in the vertebral body. Fat embolism caused by pressure changes, and continuous multiple vertebral PVP increases the risk

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