Sumitomo Electric Industries, Limited

Other

National Institute of Advanced Industrial Science and Technology

Mitachi, Seiko

Kazuhiro Kuwa

Kiwamu Yoneda

Toshifumi Hosoya

Seiko Mitachi

Masumi Ito

Nobuyuki Matsumura

Kazuyuki Sohma

Moriyasu Ichino

Isao Karube

Tomoko Ishikawa

Katsuyuki Kogo

Hideaki Nakamura

Yuichi Miyagawa

Masao Gotoh

Tomoyuki Haji

A body motion sensor, such as an SAS diagnostic device, with which a subject can be examined in a state close to that in an ordinary living environment and it is possible to clearly discriminate between an apnea state and a hypopnea state by means of a relatively simple analytical method; and an optical fiber sheet suitable for use in the sensor. The body motion sensor, such as an SAS diagnostic device, comprises a light source such as an LED, an optical fiber sheet, and an analysis unit that determines fluctuations in the quantity of light outputted from the optical fiber sheet and detects motions of the body. As the optical fiber sheet, use is made of an optical fiber sheet comprising a planar object, such as a fabric, paper, or plastic sheet, and graded-index optical quartz fibers directly or indirectly disposed thereon or affixed thereto When the sheet is produced, it is preferred to use a pressure-sensitive adhesive sheet comprising a sheet support, such as paper or fabric, and a pressure-sensitive adhesive layer formed thereon.

Optical fiber sheet and body motion sensor

An optical fiber sheetincludes an optical fiberand a wirethat are arranged between a first sheet and a second sheet. The optical fiberis a multi-mode optical fiber having a core of silica glass to which a refractive index adjuster is added, has a numerical aperture equal to or less than 0.30 and a flexural rigidity equal to or less than 0.50 N&#xb7;mm, and is bent to be arranged between the first sheet and the second sheet. The wireintersects the optical fiberbetween the first sheet and the second sheet.

Optical fiber sheet

Device for measuring constituents in the blood

An automatic calibration apparatus for a partial gas pressure measuring sensor supplies a gas having a high partial pressure (referred to as the high gas) and a gas having a low partial pressure (referred to as the low gas), to a gas selection device (103) from a gas supplier (101) through a detector device (102) which detects an abnormal gas supply condition outside given, satisfactory gas supply conditions. The selection device (103) selects the high gas or the low gas for supplying the selected gas to a sensor support (27 or 104). A partial gas pressure measuring sensor to be calibrated is placed on the sensor support and an automatic calibration controller (106) stores an output of the partial gas pressure measuring sensor (105) in an information storing memory. When the detector device, detects an abnormal gas supply of the high gas or the low gas, the automatic calibration controller stops the storing of the output of the partial gas pressure measuring sensor (105) in the storing means (107).

Automatic calibration apparatus for a partial gas pressure measuring

Thermal recorder

A patient monitor monitors information on body condition. The monitor includes a sensor for detecting information on body condition and converting the detected information into an electrical analog signal. The electrical analog signal is converted into digital measured values and sampled by a data processor at a predetermined time interval. Or, the data processor calculates a representative data value from a predetermined number of digital measured values to obtain summary data. Continuity or discontinuity is determined from successive blocks of summary data. A read-write storage for the summary data and two different kinds of delimiters correspond to the cases where the continuity and discontinuity of successive blocks of summary data are identified. The data processor operates to read out and process the stored summary data as a block of summary data covering the oldest date to the first discontinuity delimiter or a block from one discontinuity delimiter to the succeeding discontinuity delimiter and to edit the summary date into a histogram for every block of the summary data.

Patient monitor

Percutaneous gas monitor

Growing community of inventors

Osaka, Japan

Kazuhiro Kuwa