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Title:
METHOD OF MEASURING BLOOD IN PULP CAVITY, APPRATUS THEREFOR AND ADAPTOR FOR MEASURING BLOOD IN PULP CAVITY
Document Type and Number:
WIPO Patent Application WO/2007/072592
Kind Code:
A1
Abstract:
A tooth (10) is irradiated with isobestic lights of multiple wavelengths which are not affected by the degree of oxygen saturation of hemoglobin. Then, a light transmitted through the tooth (10) is received and the blood concentration and the blood flow amount in the pulp cavity are determined while eliminating the effects of light scattering and absorption caused by the tooth substances (the enamel (12) and the dentin (14)). Further, the degree of oxygen saturation of the blood in the pulp cavity is determined with the use of the attenuation in the transmitted light observed by irradiating the tooth with the isobestic lights not affected by the degree of oxygen saturation of hemoglobin and with non-isobestic lights affected by the degree of oxygen saturation of hemoglobin and the total hemoglobin level in the pulp cavity having been determined by the method as described above. Thus, the blood concentration (hemoglobin concentration), blood flow amount and degree of oxygen saturation of the blood in the pulp cavity can be noninvasively, objectively and quantitatively measured even in bright light without paining a patient.

Inventors:
MIWA, Zenzo (1-5-45 Yushim, Bunkyo-ku Tokyo 10, 1138510, JP)
三輪 全三 (〒10 東京都文京区湯島1丁目5番45号 国立大学法人東京医科歯科大学内 Tokyo, 1138510, JP)
KAKINO, Satoko (1-5-45 Yushim, Bunkyo-ku Tokyo 10, 1138510, JP)
柿野 聡子 (〒10 東京都文京区湯島1丁目5番45号 国立大学法人東京医科歯科大学内 Tokyo, 1138510, JP)
IKAWA, Motohide (1-1 Katahira 2-chome, Aoba-ku, Sendai-sh, Miyagi 77, 9808577, JP)
井川 資英 (〒77 宮城県仙台市青葉区片平2丁目1番1号 国立大学法人東北大学内 Miyagi, 9808577, JP)
TAKATANI, Setsuo (1-5-45 Yushim, Bunkyo-ku Tokyo 10, 1138510, JP)
高谷 節雄 (〒10 東京都文京区湯島1丁目5番45号 国立大学法人東京医科歯科大学内 Tokyo, 1138510, JP)
Application Number:
JP2006/312423
Publication Date:
June 28, 2007
Filing Date:
June 21, 2006
Export Citation:
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Assignee:
National University Corporation Tokyo Medical and Dental University (1-5-45, Yushima Bunkyo-k, Tokyo 10, 1138510, JP)
国立大学法人東京医科歯科大学 (〒10 東京都文京区湯島1丁目5番45号 Tokyo, 1138510, JP)
MIWA, Zenzo (1-5-45 Yushim, Bunkyo-ku Tokyo 10, 1138510, JP)
三輪 全三 (〒10 東京都文京区湯島1丁目5番45号 国立大学法人東京医科歯科大学内 Tokyo, 1138510, JP)
KAKINO, Satoko (1-5-45 Yushim, Bunkyo-ku Tokyo 10, 1138510, JP)
柿野 聡子 (〒10 東京都文京区湯島1丁目5番45号 国立大学法人東京医科歯科大学内 Tokyo, 1138510, JP)
IKAWA, Motohide (1-1 Katahira 2-chome, Aoba-ku, Sendai-sh, Miyagi 77, 9808577, JP)
井川 資英 (〒77 宮城県仙台市青葉区片平2丁目1番1号 国立大学法人東北大学内 Miyagi, 9808577, JP)
TAKATANI, Setsuo (1-5-45 Yushim, Bunkyo-ku Tokyo 10, 1138510, JP)
International Classes:
A61B5/1455; A61B5/026; A61C19/04
Attorney, Agent or Firm:
TAKAYA, Satoshi et al. (Minami-Shinjuku Bldg, 10-12 Yoyogi 2-chome, Shibuya-k, Tokyo 53, 1510053, JP)
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