Proximal femur internal fixation plate and machining tool and technology thereof

Abstract

The invention relates to an internal fixation plate and a machining tool and process thereof, and belongs to the field of medical instruments. The internal fixation plate sequentially comprises a main plate, a buckling plate and a hook plate, wherein the opposite end surfaces, located in the thickness direction, of the main plate are an operation surface and a contact surface respectively, the opposite side surfaces, located in the width direction, of the main plate are threading surfaces, a plurality of threading holes are formed in the main plate, and the threading holes are formed from the operation surface to one of the threading surfaces. According to the invention, through inclined arrangement of threading holes, the feeding depth of a drilling tool during machining of the threading holes is reduced, so that the vibration amplitude of the drilling tool caused by large drilling depth is reduced, the state stability of the drilling tool during working is improved, and the effects of reducing vibration and damage of the drilling tool and improving the forming quality of the threading hole are achieved.

Description

technical field [0001] The present application relates to the field of medical devices, in particular to a proximal femoral bone plate, tooling and technology for producing the bone plate. Background technique [0002] In the medical industry, the use of bone plates to fix fractured bone parts is a common treatment method in fracture surgery. Bone plates are usually used in conjunction with bone screws and bone cables. During treatment, bone screws and bone cables fix the bone plate and bone to each other, so as to perform bone synthesis and correction on the fractured bone. Therefore, the structure of the bone plate must correspond to the shape of the fractured bone to improve the fit between the two degree. [0003] The structure of the human proximal femur is figure 1 As shown, the proximal end of the femur is the end of the femoral body 2 close to the pelvis, and this end has structures such as the greater trochanter 22 and the femoral head 21 . The proximal femoral b...

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Problems solved by technology

[0006] In order to improve the problem that both the drilling tool and the plate are susceptible to damage during the processing of the threading hole, the application provides a bone plate, a tooling for producing a bone plate and craft

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