Supporting device of percutaneous expanding crest

Abstract

The invention discloses a supporting device of a percutaneous expanding crest, comprising a supporting piece provided with a via hole, an expansion piece and a back blocking piece, wherein the expansion piece comprises a shaft and a first end of the shaft to be pivoted to one or a plurality of vanes, and the back blocking piece is matched with a second end of the shaft of the expansion piece. The shaft of the expansion piece is sleeved in the via hole of the supporting piece in a penetrating way, the second end of the shaft of the expansion piece is provided with a long slide hole in an axial direction, and is pivoted to one or a plurality of vanes in a sliding way through the long slide hole. The supporting piece can be movably contacted with the vanes which are pivoted to the both ends of the expansion piece to form a tip type ellipse, the expansion piece and the supporting piece forming form the tip type ellipse are inserted into a vertebrae spinous process interval position together, and the vanes at the both ends strentch by being pushed or pushing against a pivot to be respectively arranged at both sides of the vertebrae spinous process interval position in a locking way. The device can lower the infection risk, can efficiently form support to vertebrae, can stabilize a vertebrae neural foramen space after an operation, and has the advantages of simpleness and efficiency as a device for treating pains caused by compressing vertebrae nerves.

Description

technical field

[0001] The present invention relates to a percutaneous spinous process supporting device, in particular to a device that can be implanted in a position between the spinous processes in a minimally invasive way through percutaneous puncture, and the upper and lower vertebrae are supported by a supporting part of the device, and the vertebrae at both ends are supported. A percutaneous expansion spine support device in which a plurality of wings are pressed against, deployed and engaged is adopted. Background technique

[0002] In traditional spondylopathy surgery, if the site of occurrence causes pain due to compression of the spinal nerves, there are mainly the following treatment methods. One is to implant "pedicle screws" to pull the vertebrae apart. Expand and release the space where the compressed nerve is located; another way is to remove the intervertebral disc between the two vertebrae and re-insert an artificial "artificial disc" to restore the interve...

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