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A frame-type pressurized multi-purpose guide for orthopedics

A guide and frame technology, applied in the field of medical devices, can solve problems such as unfavorable guide cylinder fixation, affecting the firmness of internal fixation screws, etc., so as to reduce iatrogenic injury, reduce the possibility of infection, and reduce blood supply damage. Effect

Inactive Publication Date: 2016-08-31
黄洪欣
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It is easy to cause artificial osteoporosis when it is placed repeatedly, which is not conducive to the fixation of the guide cylinder, thus affecting the firmness of the internal fixation screw

Method used

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  • A frame-type pressurized multi-purpose guide for orthopedics
  • A frame-type pressurized multi-purpose guide for orthopedics
  • A frame-type pressurized multi-purpose guide for orthopedics

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0021] Example 1: The present invention is a frame-type pressurized multi-purpose guide dedicated to internal fixation surgery with a closed reduction guide cylinder for irregular bone fractures, including a main frame and a guide cylinder. One end of the main frame is provided with a locator whose apex is a thin round triangular three-pointed point, and the other end has a nut to facilitate the insertion and pressurization of the guide cylinder. The center of the guide cylinder is consistent with the center of the locator, and the diameter of the outer thread of the guide cylinder is uniform. One end of the tip of the guide cylinder is smooth and blunt, which is compatible with the diameter of the corresponding guide pin. The tail of the guide cylinder is provided with an inner hexagonal groove. The design of the inner hexagonal groove enables the pressure to be adjusted when the guide is pressurized.

[0022] When it is practical, put the locator into the expected position o...

example 2

[0023] Example 2: The outer diameter of the thread of the guide cylinder of the present invention is uniform, and the diameter of the guide hole is 1-5 mm. The uniform diameter of the external thread is convenient for the main frame to be equipped, and the inner diameter of the guide hole is different, which is conducive to the selection of guide pins for different irregular bones.

example 3

[0024] Example 3: The locator of the present invention is designed with thin round triangular triangular toes to prevent sliding on the bone surface when pressurized, and the distal end of the guide pin enters the center of the triangular triangular toes of the locator to form a hollow cone, which is conducive to Determine if the guide pin is in the desired position.

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Abstract

A frame-type pressurized multi-purpose guide is characterized in that it is composed of a main frame (1) and a guide cylinder (2); one end of the main frame is provided with a locator (3), and the end of the locator is provided with a triangular tripod (4 ); the other end of the main frame has a nut (5), the external thread (6) of the guide cylinder matches the nut, the guide hole (7) is established in the guide cylinder, and the hexagonal groove (9) is established at the guide cylinder afterbody. The advantages of the present invention are: according to the knowledge of human anatomy, irregular bone fractures in the human body are multiple fractures, especially the fractures of the scaphoid, calcaneus, and talus. To avoid artificial osteoporosis caused by repeated insertion of guide pins, which is not conducive to stable screw fixation. The design of the present invention is convenient for compressing fractures, and the guide can be conveniently pressurized when the scaphoid fractures are separated, shifted, and closed for reduction, so as to facilitate early healing of the fractures. At the same time, it is suitable for the insertion of guide pins of many irregular bone fracture guide cylinders in the human body.

Description

technical field [0001] The invention relates to the field of medical devices, specifically, it is a special device used in the closure and reduction of irregular bone fractures in clinical orthopedics and the internal fixation of guide cylinders. It is used for fracture closed reduction and pressurization, and the guide cylinder and guide pin can be placed smoothly according to the expected requirements, so as to facilitate fracture reduction, pressurization, and the guide cylinder can put the guide pin into the expected position. Background technique [0002] Minimally invasive osteosynthesis and internal fixation has become a popular trend. After decades of research and application, the principles of fracture treatment proposed by the International Organization of Internal Fixation (AO) have been replaced by the concept of BO (biological osteosynthesis). The core of BO is to use reasonable reduction techniques to avoid exposing the fracture end as much as possible, so as ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B17/90
CPCA61B17/88A61B17/90
Inventor 黄洪欣姜长青
Owner 黄洪欣
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