Drill bit base body and skull drill

The utility model relates to a drill bit base body and a skull drill. Comprising a drill bit base body, a mounting part and a drilling part are arranged at the two axial ends of the drill bit base body respectively, the drilling part is provided with a conical drilling face coaxial with the drill bi...

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Bibliographic Details
Main Authors GUO YIJUN, TANG JIE, WEI WANCHENG
Format Patent
LanguageChinese
English
Published 04.08.2023
Subjects
DIAGNOSIS
HUMAN NECESSITIES
HYGIENE
IDENTIFICATION
MEDICAL OR VETERINARY SCIENCE
SURGERY
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Summary:The utility model relates to a drill bit base body and a skull drill. Comprising a drill bit base body, a mounting part and a drilling part are arranged at the two axial ends of the drill bit base body respectively, the drilling part is provided with a conical drilling face coaxial with the drill bit base body, an annular groove with openings in the two ends is formed in the conical drilling face, and the annular groove is coaxial with the drill bit base body; according to the drill bit base body and the skull drill, the annular groove in the conical drilling face assists the drill bit base body in forming the step-shaped hole groove in the skull, compared with a taper-like hole groove formed in an existing drill bit base body, the step-shaped hole groove has more supporting faces and has better supporting force on the drill bit base body, and after a spring in a drill bit valve element is bounced off, the drill bit valve element is not prone to falling off; the drill bit base body can enable the conical dril
Bibliography:Application Number: CN202223486399U