Bone drilling device for medical operation of nervous system

Abstract

The invention discloses a bone drilling device for a medical operation of a nervous system. The bone drilling device is characterized by comprising a front-end positioning jacket assembly, a middle fixing jacket assembly, a second-section drilling assembly and a first-section drilling assembly, wherein the front-end positioning jacket assembly is connected to the outer side of the front end of themiddle fixing jacket assembly in a sleeving manner; the second-section drilling assembly is nested in the middle fixing jacket assembly and rotationally connected with the middle fixing jacket assembly; the first-section drilling assembly is nested in the second-section drilling assembly and rotationally connected with the second-section drilling assembly; the front-end positioning jacket assembly comprises a front-end positioning disc (5), a positioning sleeve (6) and positioning columns (7), the positioning sleeve (6) and the front-end positioning disc (5) are fixedly connected, the positioning columns (7) penetrate the front-end positioning disc (5), a plurality of reinforced fixing sleeves (8) are arranged on the front-end positioning disc (5), and the positioning columns (7) are nested in the reinforced fixing sleeves (8) and in threaded connection with the reinforced fixing sleeves (8). The bone drilling device in the technical scheme is high in drilling precision, and a betteroperation effect can be guaranteed.

Description

technical field [0001] The invention relates to a bone drilling device for nervous system medical operation, which belongs to the field of medical instruments. Background technique [0002] Parkinson's disease is a common neurodegenerative disease, more common in the elderly, with an average age of onset of around 60 years old, and young Parkinson's disease with onset under the age of 40 is rare. The prevalence of PD among people over 65 years old in my country is about 1.7%. Most patients with Parkinson's disease are sporadic cases, and less than 10% of patients have a family history. The main pathological change of Parkinson's disease is the degeneration and death of dopaminergic neurons in the substantia nigra of the midbrain, which leads to a significant decrease in the content of dopamine in the substantia nigra of the striatum and causes the disease. The exact cause of this pathological change is still unclear. Genetic factors, environmental factors, aging, oxidative...

AI Technical Summary

Problems solved by technology

After the bone drill is opened, other devices are needed to open the meninges. It is difficult to ensure that the holes are opened in the correct position at the same time through two operations.

And because vibration occurs during the rotation of the drill bit, the vibration may cause the deviation of the drill bit angle, which affects the surgical accuracy

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