Wire saw guide device for total resection of spinal tumors

A guide and spinal tumor technology, applied in the field of guide for total spinal tumor resection, can solve problems such as poor operational stability, reduced surgical risk, inconvenient wire saw threading and winding, etc., to achieve convenient operation, reduce operation time, and shorten placement time Effect

A guide and spinal tumor technology, applied in the field of guide for total spinal tumor resection, can solve problems such as poor operational stability, reduced surgical risk, inconvenient wire saw threading and winding, etc., to achieve convenient operation, reduce operation time, and shorten placement time Effect

CN110192906AInactive Publication Date: 2019-09-03曹云
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  • Wire saw guide device for total resection of spinal tumors
  • Wire saw guide device for total resection of spinal tumors

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] From the broken pedicle, first put one of the arc-shaped guide sections close to the pedicle at the operation site, and insert it from one side of the pedicle, and the other arc-shaped guide section is close to the pedicle at the operation site, and insert it from the pedicle at the operation site. The other side of the root is placed, and the two arc-shaped guide segments are magnetically connected to form a complete guide, and a small part of the inner arc of the guide is close to the pedicle. The wire saw is carried out from the wire saw inlet at one end of the guide, and passes through the guide channel and then passes through the wire saw outlet at the other end of the guide. At this time, the wire saw reaches the designated position for surgery, and then pull out the slide bars on the two arc-shaped guide sections. Make the wire saw out of the guide, and then clamp the clamps at both ends of the fixing rod in the fixing device to the guide through the fixing protru...

Embodiment 2

[0034] When separating the vertebral body, one of the arc-shaped guiding segments is close to one side of the vertebral body and put into the surgical site from this side, and the other arc-shaped guiding segment is close to the other side of the vertebral body and placed into the surgical site from this side. At the surgical site, after the magnetic connection of the two arc-shaped guiding segments, the follow-up procedure is the same as the method at the pedicle separation. The difference is that the number of supporting screws is two at this time, one of which is fixed in contact with one side of the vertebral body after passing through one of the adjusting screw holes, and the other supporting screw is connected to the other side of the vertebral body after passing through another adjusting screw hole. One side is contacted and fixed, and the guide can prevent the wire saw from shifting during repeated pulling. It can limit the wire saw to the designated surgical position a...

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Abstract

The invention discloses a wire saw guide device for total resection of spinal tumors, and solves the problems of inconvenience of wire saw guidance caused by limitation of tools in conventional totalresection of spinal tumors, wherein the wire saw guide device comprises a guider with an arc-shaped structure, a guide channel for a wire saw to pass through is arranged inside the guider in the arc-shaped direction, and two ends of the guide channel extend out of the guider; the inner arc surface of the guider is provided with an incision in the arc-shaped direction, and the wire saw is separatedfrom the guide channel through the incision. The wire saw guide device with the structure can quickly and accurately guide the wire saw to an operation position, and protect the nerves and blood vessels of the spine while the wire saw is cut off, thereby reducing the operation risk.

Description

technical field [0001] The invention belongs to the technical field of medical devices, and in particular relates to a guide for total spinal tumor resection. Background technique [0002] In recent years, with the study of tumor theory, the improvement of tumor staging system and the improvement of surgical techniques, fundamental changes have taken place in the treatment of spinal tumors. En bloc total spondylectomy has the advantages of being able to completely remove the tumor tissue, effectively reducing the contamination of the tumor to surrounding tissues, reducing the recurrence rate of the tumor, and significantly improving the survival rate of patients. However, due to the limitations of the anatomical structure of the spinal cord, it is impossible to completely resect the entire spine (including the spinal cord) during spinal tumor surgery, so the ring-shaped spinal structure must be cut off. From an anatomical point of view, the pedicle is the most suitable place...

Claims

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Application Information

Patent Timeline
03 Sep 2019
Publication
CN110192906A
IPC
A61B17/14; A61B17/15
CPC
A61B17/15; A61B17/149
Inventors
卿培东; 刘利