Patent ID: 6821120
Filing Date: 2004-11-23
Classification: A61C

Abstract:
A dental handpiece comprising:a tool holder for receiving and detachably holding a dental treatment tool therein; and a tubular compressor disposed around said tool holder, said tubular compressor having a flared inner surface along a portion of its length; said tool holder and said tubular compressor being relatively slidable with respect to each other between a tool holding position and a tool releasing position, wherein said tool holder has a plurality of presser tongues formed integrally with said tool holder, each of said presser tongues being partially separate from said tool holder with a slit to have a free tip and a connecting root with a reduced thickness, wherein said slit is of a U-shape, and said tips of said presser tongues are oriented in a direction of insertion of said dental treatment tool into said tool holder in use, wherein said flared inner surface of said tubular compressor elastically urges said tongues into pressure contact with said dental treatment tool to securely hold the tool in position, when said tool holder and said tubular compressor are in said tool holding position.