FRAISES CHIRURGICALES PRESENTANT DES GEOMETRIES POSSEDANT DES CARACTERISTIQUES DE NON-DERIVE ET DE PROTECTION DES TISSUS MOUS

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专利权人:

INC.;MEDTRONIC PS MEDICAL

发明人:

KULAS, JOHN W.,STEARNS, DONALD E.

申请号：

CA2917601

公开号：

CA2917601C

申请日:

2014.07.16

申请国别(地区):

CA

年份:

2019

代理人:

摘要：

A surgical bur (120) includes a body (176) and a drill point (194). The body includes flutes (180) and lands (178). Each of the flutes includes a cutting edge (186), a rake face (184), and a clearance surface (188). Each of the lands is convex-shaped and disposed between a pair of the flutes. The drill point includes axial relief surfaces (198). Each of the axial relief surfaces has a planar area, is distinct from the lands and borders (i) a distal portion (200) of one of the cutting edges, (ii) one of the lands, and (iii) one of the clearance surfaces.

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