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Intramedullary nail assembly

A technology of intramedullary nails and components, applied in the field of intramedullary nail components, can solve the problem of intramedullary nails being cut out to the outside of the femur

Pending Publication Date: 2022-02-25
北京理贝尔生物工程研究所有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The main purpose of the present invention is to provide an intramedullary nail assembly to solve the problem in the related art that the intramedullary nail implanted in the femur is cut out of the femur

Method used

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Embodiment Construction

[0032]The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. The following description of at least one exemplary embodiment is merely illustrative in nature and in no way taken as limiting the invention, its application or uses. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0033] It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit the exemplary implementations according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include ...

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Abstract

The invention provides an intramedullary nail assembly. The intramedullary nail assembly comprises a main nail, a first auxiliary nail and a second auxiliary nail; the first auxiliary nail penetrates through the first end of the main nail, and the axis of the first auxiliary nail is obliquely arranged relative to the axis of the main nail; the second auxiliary nail is arranged in the middle of the main nail in a penetrating mode, the axis of the second auxiliary nail is obliquely arranged relative to the axis of the main nail, and the second auxiliary nail supports the first auxiliary nail so that a triangular area can be defined among the main nail, the first auxiliary nail and the second auxiliary nail; and the second auxiliary nail comprises a first nail section and a second nail section movably matched with the first nail section, the first end of the first nail section supports the first auxiliary nail, the second nail section is arranged in the middle of the main nail in a penetrating mode, and an elastic buffering piece is arranged between the second end of the first nail section and the first end of the second nail section. According to the technical scheme, the problem that in the prior art, an intramedullary nail implanted into the femur is cut out of the femur is effectively solved.

Description

technical field [0001] The invention relates to the field of medical instruments, in particular to an intramedullary nail assembly. Background technique [0002] Proximal femoral (neck and intertrochanteric) fractures account for 90% of hip fractures. Elderly patients are often combined with osteoporosis, and the proportion of unstable intertrochanteric fractures after trauma is gradually increasing. The annual disability rate of proximal femoral fractures is as high as 50%. Even after active treatment and rehabilitation training, 1 The annual mortality rate is still 20% to 30%. [0003] For unstable intertrochanteric fractures, femoral intramedullary nailing is currently recommended. The main nail of the intramedullary nail passes through the femoral medullary cavity. The eccentric distance is relatively short and it is closer to the mechanical axis of the lower limbs. The possibility of internal fixation failure after surgery Compared with extramedullary fixation, intram...

Claims

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Application Information

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IPC IPC(8): A61B17/72A61B17/74A61B17/76A61B17/78
CPCA61B17/7233A61B17/7241A61B17/725A61B17/744A61B17/742
Inventor 包理忠袁博文李健廖棋宾赵梦楠
Owner 北京理贝尔生物工程研究所有限公司
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