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Rotary external guiding and internal fixing configuration configuring device for femoral head and neck

A technology of fixed configuration and device configuration, which is applied in medical science, surgery, etc., can solve the problems of inaccurate positioning guide needle position, iatrogenic damage, low accuracy, safety and effectiveness, and solve the problem of inaccurate operation. The effect of stability, improved accuracy, and low device cost

Inactive Publication Date: 2016-02-10
庞智晖
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, in femoral neck fracture internal fixation and femoral head necrosis modified decompression and fibula transplantation, the positioning guide pin is placed under the guidance of the C-arm X-ray machine, and the positioning guide pin is held by the doctor without a fixed position. The accuracy, safety and effectiveness of instruments and operations are low, and it is difficult to obtain the ideal biomechanical configuration in the narrow geometric space of the femoral neck; It will further damage the remaining normal bone structure of the femoral head and neck, causing unnecessary iatrogenic damage
In addition, the repeated use of X-ray machines to display images exposes patients and doctors to ionizing radiation, which is also harmful to a certain extent.

Method used

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  • Rotary external guiding and internal fixing configuration configuring device for femoral head and neck
  • Rotary external guiding and internal fixing configuration configuring device for femoral head and neck
  • Rotary external guiding and internal fixing configuration configuring device for femoral head and neck

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Experimental program
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Effect test

Embodiment 1

[0030] like figure 1 , figure 2 As shown, the device of the present invention includes: a guide sleeve 1 , a rotating slider 2 , a connecting guide rail 3 , a locking nut 4 , a mounting plate 5 , and an indicator needle 6 .

[0031] The rotating slider 2 is provided with a hollow groove 21 , and a positioning boss 22 is arranged above the rotating slider 2 .

[0032] The connecting guide rail 3 includes an arc portion 31 and a connected plane portion 32, the angle β between the chord of the arc portion 31 and the plane where the plane portion 32 is located is 110°-140°, and the arc portion 31 is provided with a strip-shaped slot hole 33, the plane part 32 is connected and fixed with the mounting plate 5; the mounting plate 5 is provided with at least two mounting holes 51, and the present embodiment is provided with three rows and three columns of mounting holes 51 evenly arranged, which is convenient for adjustment according to different human bone femoral installation loc...

Embodiment 2

[0043] The device in this embodiment includes: a guide sleeve 1 , a rotating slider 2 , a connecting guide rail 3 , a lock nut 4 , a mounting plate 5 , and an indicator pin 6 .

[0044] In this embodiment, the structures of the guide sleeve 1 , the rotating slider 2 , the connecting guide rail 3 , the lock nut 4 , and the indicator needle 6 are the same as those in Embodiment 1.

[0045] like Figure 4 As shown: the inner side of the mounting plate 5 in this embodiment is an arc-shaped curved surface 52, and several concave-convex stripes 53 are arranged on the arc-shaped curved surface 52. The upper and lower surfaces of the mounting plate 5 are provided with concave grooves 54 for holding or holding tools. The plane portion 32 of the connecting guide rail 3 is arranged parallel to the mounting plate 5 , and the included angle γ between the arc chord of the curved surface 52 and the plane where the plane portion 32 is located is 12°-15°.

[0046] When the present invention ...

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PUM

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Abstract

The invention discloses a rotary external guiding and internal fixing configuration configuring device for the femoral head and neck. The configuring device comprises a guide sleeve (1), a rotating sliding block (2), a connecting guide rail (3), a locking nut (4), an installing plate (5) and an indicator pointer (6). A guide needle hole (11) is formed in the center of the guide sleeve (1), a hollow groove (22) is formed in the rotating sliding block (2), the connecting guide rail (3) comprises an arc part (31) and a plane part (32) connected with the arc part (31), the included angle beta between the chord of the arc part (31) and the plane where the plane part (32) is located is 110-140 degrees, a long-striped slotted hole (33) is formed in the arc part (31), and the plane part (32) and the installing plate (5) are fixedly connected. In cooperation with the imaging technology, the configuring device can effectively improve the accuracy of positioning a guide needle in a femoral head and neck operation, and the position of the guide needle can be checked and located noninvasively.

Description

technical field [0001] The invention belongs to orthopedic medical equipment, which is an auxiliary positioning equipment. Background technique [0002] At present, in femoral neck fracture internal fixation and femoral head necrosis modified decompression and fibula transplantation, the positioning guide pin is placed under the guidance of the C-arm X-ray machine, and the positioning guide pin is held by the doctor without a fixed position. The accuracy, safety and effectiveness of instruments and operations are low, and it is difficult to obtain the ideal biomechanical configuration in the narrow geometric space of the femoral neck; It will further damage the remaining normal bone structure of the femoral head and neck, causing unnecessary iatrogenic damage. In addition, the repeated use of X-ray machines to display images exposes patients and doctors to ionizing radiation, which is also harmful to a certain extent. Contents of the invention [0003] The object of the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/56A61B17/90
Inventor 庞智晖成思源唐立明刘吉安樊粤光丛海宸李鹏飞葛辉
Owner 庞智晖
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