Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Percutaneous minimally invasive pedicle screw/rod internal fixation system

A technology of pedicle screw and fixation system, which is applied in the directions of internal fixator, fixator, internal bone synthesis, etc., can solve the complicated operation of non-hollow pedicle screw operation, complicated design of hollow pedicle screw instruments, and lack of equipment. Effectively spread the pressure tool and other problems to achieve the effect of simple structure, easy rod placement, and less trauma

Active Publication Date: 2012-10-31
贺新宁
View PDF1 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention solves the technical problems of complicated design of hollow pedicle screw instruments, complicated surgical operation of non-hollow pedicle screws, difficulty in placing nails and rods precisely, and lack of effective distraction and pressure tools in the prior art.

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
  • Percutaneous minimally invasive pedicle screw/rod internal fixation system
  • Percutaneous minimally invasive pedicle screw/rod internal fixation system
  • Percutaneous minimally invasive pedicle screw/rod internal fixation system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0041] In order to make the technical problems, technical solutions and beneficial effects solved by the present invention clearer, the following further describes the present invention in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.

[0042] The present invention provides a percutaneous minimally invasive pedicle screw rod internal fixation system, comprising a pedicle screw 1, a longitudinal connecting rod 2, a positioning needle tube 3 for determining the position of the nail, and a guide needle 4, which are used for expanding the placement The expansion core 5 of the nail channel, the nail placement guide sleeve 6, the nail device 7, the nail seat 900, the rod holder 400 for installing the longitudinal connecting rod 2, and the expansion presser for expanding or pressing 600. An arm folding device...

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 provides a percutaneous minimally invasive pedicle screw / rod internal fixation system. The system comprises a pedicle screw, a longitudinal connecting rod, a locating needle tube, a guide needle, a dilating core, a placed screw guide sleeve, a screw loader, a rod holder, a distraction pressurizer, arm fracture devices and a screw loading base, wherein the locating needle tube and the guide needle are used for determining the position of a placed screw; the dilating core is used for dilating a screw placement channel; the arm fracture devices are used for fracturing long arms of the pedicle screw; the pedicle screw comprises a screw body, a screw base, two fracturable long arms and a plug screw; the screw body is connected with the screw base; the two fracturable long arms are oppositely and fixedly connected to the screw base to form a U-shaped structure in which the longitudinal connecting rod can be embedded; the two fracturable long arms extend out of the skin incision; and the plug screw is screwed in the U-shaped structure formed by the two fracturable long arms so as to compress the longitudinal connecting rod. By utilizing the system provided by the invention in the posterior thoracolumbar minimally invasive surgery, the trauma is little, and the haemorrhage is less; and the system is simple and flexible to operate and can achieve the effect of open surgery.

Description

Technical field [0001] The invention belongs to the field of orthopedic surgical medical instruments, and particularly relates to a percutaneous minimally invasive pedicle screw rod internal fixation system. Background technique [0002] Pedicle screw technology has the advantages of three-column fixation. It is a very mature spine surgery technology and has been widely used. The traditional method is open surgery with posterior incision, which requires extensive stripping of paraspinal muscles, ligaments and other structures, which can easily lead to loss of innervation of the paraspinal muscles, and patients are likely to have sequelae such as low back pain and stiffness. The operation is traumatic, bleeding, and hospitalization is long, which increases the patient's pain and economic burden. In recent years, the percutaneous minimally invasive pedicle screw technique has been used in clinical practice, with less trauma, less blood loss, fast recovery, and certain effects. At...

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
Patent Type & Authority Patents(China)
IPC IPC(8): A61B17/70A61B17/88
Inventor 贺新宁
Owner 贺新宁
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products