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US 9,931,178 B2Granted
Cutting instrument, in particular dental instrument
AssigneeDENTSPLY SIRONA Inc.
InventorAlain Delval
Life of this patent
Estimating the term…
Abstract
The present invention relates to a rotary cutting instrument, in particular of the bur type, intended for chirurgical or dental use and comprising an active cutting part and a handle. Said active part is made of a metal carbide and the handle is made of a nickel-titanium alloy. The instrument further comprises an intermediate part made of stainless steel placed between the active part and the handle and metallurgically connected to said active part and to said handle.
Claims10
A rotary cutting instrument comprising:
- an active cutting part, the active part being made of a metal carbide;
- an intermediate part, the intermediate part is made of stainless steel;
- and
- a handle, the handle is made of a nickel-titanium alloy;
- and
- wherein the intermediate part is located between the active part and the handle and is metallurgically connected to said active part and to said handle.
3 more elements
Dependencies are inferred from the claim text.