DENTAL HANDPIECE
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United States of America Patent
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Issued Date -
Feb 29, 2024
app pub date -
Mar 30, 2022
filing date -
Aug 18, 2021
priority date (Note) -
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status (Latency Note)
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Abstract
A wall portion of a dental handpiece accommodates a cam pin 111 with a cam hole 21 or a cam groove 211 designed so that the size of the cam hole 21 or the cam groove 211 is larger than the size of the cam pin 111 in each of the axial direction and the circumferential direction of a vibration cylinder 20. Therefore, a rotating member 110 is rotationally driven, and a vibrating force acts on the vibration cylinder 20 in the axial direction through the cam pin 111. In this manner, the vibration cylinder 20 vibrates or reciprocates in the axial direction with respect to a second cylindrical member 12, and vibrates or reciprocates in the circumferential direction. In addition, a needle portion 42 protruding from a through-hole 202 of the vibration cylinder 20 vibrates while being bent.
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