Hideyuki Horiuchi

Ryo Miyake; Isao Yamazaki; Yasuaki Kojima; M. Kurimura; Hideyuki Horiuchi

BACKGROUND Urine contains microscopically observable particles that can indicate certain types of disease in the urinary tract system. Determining these various types of sediments by manual operation is a cumbersome and time-consuming task. To eliminate this labor, we developed an automated urinary sediment analyzer with high-throughput pretreatment system. METHODS The pretreatment system mainly consists of four reaction vessels for dying samples (urine), a sheath flow chamber, and an unique sample carrier mechanism from the reaction vessel to the flow chamber, which enables overlapped processing, and rapid transfer of samples with small dispersion and a short buildup time. RESULTS The buildup time was experimentally found to be 1.8 s, and the extra-sample volume beside that for measurement was only 4.9 microl (1/20 of the total sample volume). CONCLUSIONS Short buildup time results in high throughput of 120 samples per hour, and relatively small extra-volume contributes to reduce carryover.

Masaetsu Matsumoto; Isao Yamazaki; Ryo Miyake; Masaharu Ishii; Ryohei Yabe; Hiroshi Ohki; Hideyuki Horiuchi; Shinichi Sakuraba

Ryo Miyake; Hiroshi Ohki; Isao Yamazaki; Toshio Kaneko; Hideyuki Horiuchi; Shinichi Sakuraba; Kaori Yasuda

Hideyuki Horiuchi; Koji Suda; Masaetsu Matsumoto

Isao Yamazaki; Hiroshi Ohki; Masaetsu Matsumoto; Ryo Miyake; Ryohei Yabe; Hideyuki Horiuchi; Shinichi Sakuraba

Tamotsu Shimada; Chiaki Shinbo; Hideyuki Horiuchi; Masamoto Takatsuji

Hideyuki Horiuchi

Akira Hashimoto; Hideyuki Horiuchi; Manabu Yamamoto

Ryo Miyake; Hiroshi Ohki; Isao Yamazaki; Toshio Kaneko; Hideyuki Horiuchi; Shinichi Sakuraba; Kaori Yasuda

Hideyuki Horiuchi; Shinichi Sakuraba; Toshio Kaneko; Nobuyuki Tatara; Ryohei Yabe; Hiroshi Ohki; Isao Yamazaki; Ryo Miyake