Title:
HEADREST FOR DENTAL TREATMENT CHAIR AND DENTAL TREATMENT CHAIR
Document Type and Number:
WIPO Patent Application WO/2010/026687
Kind Code:
A1
Abstract:
Provided is a headrest for dental treatment chair wherein discomfort due to noise generated from a dental treatment appliance can be reduced and communication between a dentist and a patient can be ensured, and also provided is a dental treatment chair.
A headrest for dental treatment chair consists of a member (91) for supporting the back of the head of a patient during dental treatment, and ear supporting members (92, 92) which can be bent in the direction for covering the ears of a patient at the opposite ends of the back of the head supporting member (91). The ear supporting members (92, 92) or the back of the head supporting member (91) is equipped with sound output sections (93, 93) for outputting the sound from a sound source, and the ear supporting members (92, 92) are equipped, respectively, with a sound collecting section (94) for collecting sounds in the environment. Sound signals collected at the sound collecting section (94) are passed through acoustic filters (95, 95) and the frequencies higher than 8 kHz are cut off.
Inventors:
YAMADA TOMOMI (JP)
Application Number:
PCT/JP2009/002882
Publication Date:
March 11, 2010
Filing Date:
June 24, 2009
Export Citation:
Assignee:
YAMADA TOMOMI (JP)
International Classes:
A61G15/12
Domestic Patent References:
| WO2002100287A2 | 2002-12-19 |
Foreign References:
| JP2007125071A | 2007-05-24 | |||
| JPH05285161A | 1993-11-02 | |||
| US4977600A | 1990-12-11 | |||
| JPS63209641A | 1988-08-31 | |||
| JPH04242638A | 1992-08-31 | |||
| JPS60184530U | 1985-12-07 |
Attorney, Agent or Firm:
FUKUNAGA, Masaya (JP)
Masaya Fukunaga (JP)
Masaya Fukunaga (JP)
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