Frame-type pressurizing multipurpose guider

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

Inactive Publication Date: 2014-04-23
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

Method used

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  • Frame-type pressurizing multipurpose guider
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  • Frame-type pressurizing multipurpose guider

Examples

Experimental program
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Effect test

example 1

[0022] 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.

[0023] When it is practical, put the locator into the expected position o...

example 2

[0024] 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

[0025] 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

Disclosed is a frame-type pressurizing multipurpose guider. The frame-type pressurizing multipurpose guider is characterized by being composed of a main frame (1) and a guide barrel (2), a positioner (3) is arranged at one end of the main frame, triangular three toes (4) are arranged at the tail end of the positioner, a nut (5) is arranged at the other end of the main frame, an external thread (6) of the guide barrel is matched with the nut, a guide hole (7) is arranged in the guide barrel, and an inner hexagon groove (9) is arranged at the tail of the guide barrel. The frame-type pressurizing multipurpose guider has the advantages that according to knowledge of human anatomy, fractures of irregular bones of a human body are multiple fractures, especially fractures of scaphoid, calcaneus, astragali and the like; when fixing in the guide barrel is needed, a guide needle can be accurately implanted at one step, so that artificial osteoporosis caused by repeated implanting of the guide needle can be avoided to realize stable fixing of a screw. The frame-type pressurizing multipurpose guider is convenient for fracture pressurizing, pressurizing can be conveniently performed by the guider when the scaphoid fractures, separates, shifts, closes and restores for the convenience of early healing of fracture, and the frame-type pressurizing multipurpose guide is suitable for implanting of the guide needle of the guide barrel for various fractures of the irregular bones of 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. The principles of fracture treatment proposed by the International Organization of Internal Fixation (AO) in the early days of its establishment have been replaced by the concept of BO (biological osteosynthesis) after decades of research and application. The core of BO is to use reasonable reduction techniques to avoid exposing the fr...

Claims

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Application Information

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IPC IPC(8): A61B17/90
CPCA61B17/88A61B17/90
Inventor 邓宇
Owner 黄洪欣
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