The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 23, 2006
Filed:
May. 09, 2003
Hirofumi Jikuhara, Kyoto, JP;
Shozo Nakayama, Kyoto, JP;
Noriyuki Tanaka, Kyoto, JP;
J. Morita Manufacturing Corporation, Kyoto, JP;
Abstract
A air-driven cutting device for medical treatment (a handpiece ()) comprises a housing () for a head portion (). The housing () accommodates a rotary cylinder () for holding a cylindrical cutting tool () inserted through the tool inlet () of the housing, and a turbine blade () mounted around and secured on the rotary cylinder. With this arrangement, a compressed air is blown onto the turbine blade to rotate the turbine blade, the rotor and the cutting tool. Particularly, a part or a whole of the end portion of the rotary cylinder in the vicinity of the tool inlet is covered with the cover section () of the housing. Therefore, the rotary cylinder does not contact the teeth or the tissues of the buccal cavity.