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Broken-nail extractor for orthopedics and using method thereof

An extractor and orthopedic technology, applied in the direction of fixers, etc., can solve problems such as inconvenient use, and achieve the effect of reducing injuries, reducing body damage, and relieving pain

Inactive Publication Date: 2011-08-17
平阴县人民医院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003]In order to overcome the inconvenient use of the existing broken nail remover, the present invention provides a broken orthopedic nail remover and its use method. The device is not only easy to locate accurately, but also has little damage to the body during the removal process

Method used

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  • Broken-nail extractor for orthopedics and using method thereof
  • Broken-nail extractor for orthopedics and using method thereof
  • Broken-nail extractor for orthopedics and using method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Embodiment 1, a broken orthopedic nail extractor is characterized in that it consists of three parts: a drill guide, a drill bit 4, and a helical nail remover, and one end of the guide connecting rod 2 of the drill guide is a guide The other end of the handle 1 is equipped with a factory-shaped guide head 3, a guide hole 5 for installing a drill bit is arranged on the horizontal section of the guide head, and an auxiliary positioning pin 6 is welded on the oblique section of the guide head. The device is T-shaped, the upper end of the nail remover rod 8 is equipped with a nail remover handle 7 perpendicular to it, the lower end is a truncated conical nail remover thread head 9, the thread direction is a reverse thread, that is, a left-handed thread, and the front end of the thread head 0.5-1mm smaller than the drilling diameter, the rear end is 1-2mm larger than the drilling diameter, and the thread length is 15-25mm. In the present invention, the drill bit and the nail...

Embodiment 2

[0021] Embodiment 2, a broken orthopedic nail extractor is characterized in that it consists of three parts: a drill guide, a drill bit 4, and a helical nail remover, and one end of the guide connecting rod 2 of the drill guide is a guide The other 1 end of the handle is equipped with a factory-shaped guide head 3, a guide hole 5 for installing a drill bit is arranged on the horizontal section of the guide head, and an auxiliary positioning pin 6 is installed on the oblique section of the guide head. It is T-shaped, and the upper end of the nail remover rod 8 is equipped with a nail remover handle 7 perpendicular to it, and the lower end is a truncated conical nail remover thread head 9, and its thread direction is a reverse thread, that is, a left-handed thread. The auxiliary positioning pin is threadedly connected with the guide head.

Embodiment 3

[0022] Embodiment 3, a broken orthopedic nail extractor is characterized in that it consists of three parts: a drill guide, a drill bit 4, and a helical nail remover, and one end of the guide connecting rod 2 of the drill guide is a guide The other end of the handle 1 is equipped with a factory-shaped guide head 3, a guide hole 5 for installing a drill bit is arranged on the horizontal section of the guide head, and an auxiliary positioning pin 6 is welded on the oblique section of the guide head. The device is T-shaped, and the upper end of the nail remover rod 8 is equipped with a sleeve-shaped nail remover handle 7 perpendicular to it, and the nail remover handle rod 10 is housed in the casing, and the lower end of the nail remover rod is a truncated conical nail remover thread. Head 9, its thread direction is reverse thread namely left-handed thread.

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Abstract

The invention discloses a broken-nail extractor for orthopedics, in particular relates to a device for extracting a surgical fixation nail, belonging to surgical medical apparatus. The broken-nail extractor is characterized by comprising a drill hole guider, a drill head and a spiral nail-extractor, wherein one end of a guider connecting rod of the drill hole guider is provided with a guider handle and the other end is provided with a guider head shaped as a Chinese character Chang; the horizontal section of the guider head is provided with a guide hole for mounting the drill head; the oblique section of the guider head is provided with an auxiliary positioning nail; the broken-nail extractor is T-shaped; the upper end of a broken-nail extractor rod is provided with a broken-nail extractor handle perpendicular to the broken-nail extractor rod; the lower end of the broken-nail extractor rod is provided with a broken-nail extractor thread head with a conical truncate; and the thread direction of the broken-nail extractor thread head is a reverse thread, namely a left-hand thread. The broken-nail extractor has the advantages that a broken nail can be accurately positioned, drilled and extracted; the angle of the guide hole can be accurately adjusted and fixed according to requirements of a surgical part by the device so as to ensure that the direction of the drill hole is consistent with the direction of the central line of the broken nail; and thus the injury to the human body is relieved in the broken-nail extracting process, and the pain of a patient is relieved.

Description

technical field [0001] The invention belongs to surgical medical instruments, in particular to a device for taking out surgical fixation needles. Background technique [0002] Metal screw is a commonly used device for orthopedic fixation. When performing fracture fixation clinically, the situation of broken (slipped) nails often occurs. Start all over again. Removing broken (slip) nails is a very complicated matter, time-consuming and labor-intensive. The traditional tool for removing broken nails is a circular saw shape, which has poor nail removal effect, takes a long time, causes great damage to the bone, and requires complete disassembly of the steel plate. After removing the nail, the original bone hole cannot be reused, and the position of the steel plate needs to be changed again, which brings great inconvenience to the whole operation, increases the risk of iatrogenic refracture, increases the operation time, causes more bleeding in patients, and causes postoperativ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/92
Inventor 王玉杰李太恭张春玲
Owner 平阴县人民医院
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