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Self-locking universal nail

A universal screw and self-locking technology, which is applied in the field of self-locking universal screw and orthopedic surgery, can solve problems such as loss of spine position, screw plug prolapse, and failure to achieve the expected results of surgery

Active Publication Date: 2016-04-20
BEIJING FULE SCI & TECH DEV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional single-screw universal screw may prolapse, and the position may be lost when the spine is pressurized and decompressed, resulting in the failure of the operation to achieve the desired effect or fixation failure

Method used

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  • Self-locking universal nail
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  • Self-locking universal nail

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0032] In order to further illustrate the present invention, the self-locking universal nail provided by the present invention will be described in detail below in conjunction with the examples, but they should not be construed as limiting the protection scope of the present invention.

[0033] refer to Figure 1 to Figure 16 As shown, a self-locking universal nail according to a preferred embodiment of the present invention is connected with a connecting rod 39 . The self-locking universal screw includes a ball stud 1 , a first pressing block 2 , a second pressing block 3 , a connector 4 , an inner screw plug 5 , an outer screw plug 6 and a washer 7 . The interior of the connector 4 is hollow, the connecting rod 39 runs through the connector 4 transversely, the movable range of the ball stud 1 is set at the lower part of the connector 4, the first pressing block 2 and the The second pressing block 3 is arranged outside the head of the ball stud 1 to form an encircling force ...

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PUM

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Abstract

The invention relates to a self-locking universal nail and belongs to the field of medical apparatus and instruments. The self-locking universal nail comprises a bulb nail body (1), a first pressing block (2), a second pressing block (3), a connector (4), an inner plug screw (5), an outer plug screw (6) and a gasket (7). The connector (4) is internally hollow, the bulb nail body (1) is set to move on the lower portion of the connector (4), the first pressing block (2) and the second pressing block (3) are arranged on the outer side of the nail head of the bulb mail body (1) and form encircling force on the bulb nail body (1), the gasket (7) makes the first pressing block (2) and the second pressing block (3) press the bulb nail body (1), the bulb nail body (1) is fixed to the connector (4), the outer plug screw (6) is set to move at the upper end of the connector, and the inner plug screw (5) is set to move in the outer plug screw (6).

Description

technical field [0001] The invention relates to a self-locking universal nail, which belongs to the field of medical instruments and is suitable for orthopedic operations. Background technique [0002] With the improvement of living standards, the improvement of medical standards, and the acceleration of the pace of life, doctors and patients have higher and higher requirements for the existing spine disease operations and a series of complications caused by the operations. Various spinal deformities, including idiopathic and congenital scoliosis, kyphosis, single-segment or multi-segment spinal fractures, single-segment or multi-segment spinal instability, degenerative spinal diseases, etc., the existing spine It is difficult to obtain a good treatment for spinal diseases with the nail-rod system, and the patient's activities are severely restricted after surgery, which brings serious inconvenience to the life of the patient. The invention is developed and designed for sta...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/70A61B17/86
CPCA61B17/7032A61B17/86
Inventor 蔡广朋仇万裕李洪艳黄锡艺白艳丽
Owner BEIJING FULE SCI & TECH DEV