Positioning guider for embedding pedicle screw of lower cervical spine

A pedicle screw, positioning and guiding technology, applied in medical science, surgery, etc., can solve the problems of high cost, narrow application scope, high price, etc., and reduce the complications related to pedicle screw placement. The effect of occurrence, low risk of falling off, and convenient operation

Inactive Publication Date: 2011-04-06
南京医科大学附属南京第一医院
View PDF7 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are considerable risks in the traditional manual nail placement method, which are closely related to the operator's familiarity with anatomical structures, surgical experience, and operating skills
However, the existing screw guides are usually large in size, heavy in weight, na

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Positioning guider for embedding pedicle screw of lower cervical spine
  • Positioning guider for embedding pedicle screw of lower cervical spine
  • Positioning guider for embedding pedicle screw of lower cervical spine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0018] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0019] Such as Figure 1-3 Shown: a lower cervical pedicle screw positioning guide, which includes a fixed positioning needle 1 and a sliding groove 2 hinged on the needle arm of the fixed positioning needle 1, the sliding groove 2 is arc-shaped, sliding The inner surface of the groove 2 is evenly engraved with the measuring angle scale line 3; the sliding groove 2 is provided with tightening screws 5 located at both ends of the measuring angle marking line 3, which are used to tighten the sliding groove 2 and then fix the screw inserted into the casing hole 4. The working casing 6; the inside of the sliding groove 2 is also equally divided into the casing hole 4 that runs through the side of the sliding groove 2, the center line of the casing hole 4 points to the center of the sliding groove 2, and the casing hole 4 is located at the angle scale line 3...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a positioning guider for embedding a pedicle screw of a lower cervical spine. The positioning guider comprises a fixed positioning pin (1) and a sliding chute (2) which is hinged with the arm of the fixed positioning pin (1), wherein the sliding chute (2) is cambered; angular measurement scale marks (3) are uniformly formed on the inner side face of the sliding chute (2); a bushing hole (4) which penetrates through the side face of the sliding chute (2) is formed in the sliding chute (2); the central line of the bushing hole (4) directs at the center of circle of the sliding chute (2); and the distance O'O from the tip of the fixed positioning pin (1) to the center of circle of the sliding chute (2) is 1.0 to 3.5mm. The guider determines the direction and the position of the pedicle screw through the fixed positioning pin and the bushing hole on the sliding chute, has a simple structure and is convenient to operate, improves the accuracy and the safety for embedding the pedicle screw of the lower cervical spine in the posterior surgery, reduces the occurrence of related complicating diseases and is suitable to be popularized and applied in most of primary health organizations.

Description

technical field [0001] The present invention relates to a surgical instrument, in particular to a surgical instrument that can guide the operator to place the lower cervical pedicle screw accurately in the posterior way, avoiding the mistake of entering the spinal canal and damaging the vertebral artery. The lower cervical pedicle screw positioning guide is used in the field of minimally invasive cervical surgery. Background technique [0002] Pedicle screw (PS) technology has developed rapidly since its introduction in the 1980s, and has been widely used in spinal degeneration, spondylolisthesis, spinal stenosis, vertebral fracture, deformity, bone metastases, and spinal loss. Surgical treatment of stable diseases. It has been reported in the literature that the application of pedicle screw technology in cervical spine surgery has reliable biomechanical advantages and a high rate of bone fusion. Anthropometry studies have shown that cervical pedicles have smaller anatomic...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): A61B17/90
Inventor 曾逸文孙强王大林程兴东
Owner 南京医科大学附属南京第一医院
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap