Femoral head necrosis medullary core decompression device

A technology for femoral head necrosis and core decompression, applied in the direction of bone drill guidance, medical science, surgery, etc., can solve the problems of residual necrotic bone tissue, affecting the operation effect, and limited access range, so as to speed up the operation speed and improve the Effect of surgery, effect of reducing the number of fluoroscopy

Pending Publication Date: 2019-07-12
中国人民解放军联勤保障部队第九0四医院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the sclerosis of the necrotic bone tissue and the limited scope of the channel, some necrotic bone tissue often remains, so that the femoral head cannot be completely decompressed, thus affecting the surgical effect.

Method used

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  • Femoral head necrosis medullary core decompression device
  • Femoral head necrosis medullary core decompression device
  • Femoral head necrosis medullary core decompression device

Examples

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Embodiment Construction

[0025] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0026] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", " The orientations or positional relationships indicated by "vertical", "horizontal", "top", "bottom", "inner" and "outer" are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and Simplified descriptions, rather than indicating or implying that the device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and thus should not be construed as limiting the invention. In addition, the terms "first", "second", etc. are used for descriptive purposes only, and should not be understood ...

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Abstract

The invention discloses a femoral head necrosis medullary core decompression device. The device comprises an outer guiding tube, an inner guiding tube and a soft drill bit assembly; the outer guidingtube is a straight tube; the inner guiding tube comprises a straight tube section and a bending section which are connected with each other, and the bending section deflects towards one side of the straight tube section, extends from one end of the outer guiding tube and protrudes from the other end of the outer guiding tube; the soft drill bit assembly comprises a drill bit, a soft drill rod anda hard drill rod which are sequentially connected, and the drill bit penetrates through the straight tube section and protrudes out of the bending section. The femoral head necrosis medullary core decompression device has the advantages that the bending section can protrude out of the outer guiding tube, the drill bit penetrates out of the bending section, the operation range of the drill bit is enlarged, the necrotic bone tissue is effectively and completely removed, and the full decompression is facilitated.

Description

technical field [0001] The invention belongs to the technical field of medical instruments, in particular to a decompression device for a femoral head necrosis pulp core. Background technique [0002] Necrosis of the femoral head is a type of avascular necrosis, which is a type of osteonecrosis, and the lesion leads to destruction of articular cartilage and collapse of the femoral head, eventually leading to loss of hip joint function. Femoral head necrosis caused by various reasons takes ischemia of the femoral head as its final pathological change. Necrosis of the femoral head requires interventional surgery in the early stage of collapse to preserve the femoral head to the maximum extent and avoid further collapse and damage. [0003] Core drilling decompression surgery is to drill a hole into the femoral head under X-ray fluoroscopy under the greater trochanter of the femur to maintain a certain neck-shaft angle and anteversion angle, so that the tip of the Kirschner wi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/22A61B17/16A61B17/17A61B90/00
CPCA61B17/16A61B17/1615A61B17/164A61B17/1703A61B17/1739A61B17/22A61B90/06A61B2017/1602A61B2017/22038A61B2017/564A61B2090/062
Inventor 明玉祥陈伟南郭洁
Owner 中国人民解放军联勤保障部队第九0四医院
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