SU584845A1 - Breathing sensor - Google Patents
Breathing sensorInfo
- Publication number
- SU584845A1 SU584845A1 SU7502112892A SU2112892A SU584845A1 SU 584845 A1 SU584845 A1 SU 584845A1 SU 7502112892 A SU7502112892 A SU 7502112892A SU 2112892 A SU2112892 A SU 2112892A SU 584845 A1 SU584845 A1 SU 584845A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- chamber
- thermistor
- patient
- electric heater
- holes
- Prior art date
Links
Description
II
Изобретение относитс к медицинской технике, а именно к диагностической технике, используемой в пульмонологии .The invention relates to medical technology, in particular to a diagnostic technique used in pulmonology.
Известен датчик дыхани , содержащей камеру с термистором и электронагреватель , В стенках камеры выполнены отверсти дл сообщени ее с дыхательным трактом пациента и с наружным прюстранством 1 .A respiration sensor is known that contains a chamber with a thermistor and an electric heater. Holes are made in the chamber walls to communicate with the patient's respiratory tract and with the outer space 1.
Недостатком этого датчика вл етс удвоение частоты выходного сигнала при частом и глубоком дыхании, что снижает точность измерений.The disadvantage of this sensor is to double the frequency of the output signal with frequent and deep breathing, which reduces the measurement accuracy.
Целью изобретени вл етс повышение точности измерений путем исключени удвоени частоты выходного сигнала .The aim of the invention is to improve the measurement accuracy by eliminating doubling the frequency of the output signal.
Дл этого электронагреватель размещен в пространстве камеры между термистором и одним из отверстий.For this, the electric heater is placed in the space of the chamber between the thermistor and one of the holes.
На фиг.1 изображен датчик дыхани в разрезе; на фиг.2 - датчик, закрепленный на голове пациента.Figure 1 shows a sectional breath sensor; figure 2 - sensor mounted on the patient's head.
Датчик содержит камеру 1 с размещенными внутри термистором 2 и электронагревателем 3, например лампой накаливани . В стенках камеры выполнены отверстие 4 дл сообщени через трубку 5 с дыхательным трактом пациента иThe sensor comprises a chamber 1 with an internal thermistor 2 and an electric heater 3, for example, an incandescent lamp. An opening 4 is made in the walls of the chamber for communication through the tube 5 with the patient's respiratory tract and
22
отверстие б дл сообщени с наружным пространством. Электронагреватель 3 размещен в пространстве камеры 1 между термистором 2 и отверстием 4, которое сообщаетс с дыхательным трактом пациента.b hole for communication with outside space. Electric heater 3 is located in the space of chamber 1 between thermistor 2 and hole 4, which communicates with the patient's respiratory tract.
Датчик работает следующим образом. Конец трубки 5 ввод т в полость носа пациента, а камеру закрепл ют,The sensor works as follows. The end of the tube 5 is inserted into the nasal cavity of the patient, and the chamber is fixed,
например на лбу любым известным способом . При вдохе -наружный относительно холодный воздух г;ходит в камеру через отверстие 6 и через трубку 5 попадает в дыхательный тракт пациента . Проход через камеру, воздух охлаидает термистор 2. При выдохе проис о дит движение воздуха в обратном направлении . Воздух, нагретый электронагре вателем З, омывает термистор 2 и нагревает его.for example, on the forehead by any known method. When you inhale, the outside relatively cold air r goes into the chamber through the opening 6 and through the tube 5 enters the respiratory tract of the patient. The passage through the chamber, the air is cooled by thermistor 2. When exhaling, the air moves in the opposite direction. The air, heated by the electric heater 3, washes the thermistor 2 and heats it.
Тепловой режим подбираетс так, чтобы температура нагретого электронагревателем 3 воздуха была заведомо выше температуры воздуха наружного пространства . В результате датчик выдает сигнал достаточного уровн и правиль- ной частоты при любой практически возможной температуре в помещении и при любом физиологически возможном режимеThe heat mode is selected so that the temperature of the air heated by the electric heater 3 is obviously higher than the air temperature of the outdoor space. As a result, the sensor generates a signal of sufficient level and correct frequency at any practically possible room temperature and at any physiologically possible mode.
дыхани пациента.patient's breathing.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU7502112892A SU584845A1 (en) | 1975-02-14 | 1975-02-14 | Breathing sensor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU7502112892A SU584845A1 (en) | 1975-02-14 | 1975-02-14 | Breathing sensor |
Publications (1)
Publication Number | Publication Date |
---|---|
SU584845A1 true SU584845A1 (en) | 1977-12-25 |
Family
ID=20612528
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU7502112892A SU584845A1 (en) | 1975-02-14 | 1975-02-14 | Breathing sensor |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU584845A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4256101A (en) * | 1979-03-05 | 1981-03-17 | Bourns Medical Systems, Inc. | Thermistor assist sensing |
US4357936A (en) * | 1979-03-05 | 1982-11-09 | Bear Medical Systems, Inc. | Directional thermistor assist sensing |
GB2480605A (en) * | 2010-05-24 | 2011-11-30 | Univ Sheffield Hallam | Respiration monitoring device measuring exhaled air temperature |
-
1975
- 1975-02-14 SU SU7502112892A patent/SU584845A1/en active
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4256101A (en) * | 1979-03-05 | 1981-03-17 | Bourns Medical Systems, Inc. | Thermistor assist sensing |
US4357936A (en) * | 1979-03-05 | 1982-11-09 | Bear Medical Systems, Inc. | Directional thermistor assist sensing |
GB2480605A (en) * | 2010-05-24 | 2011-11-30 | Univ Sheffield Hallam | Respiration monitoring device measuring exhaled air temperature |
GB2480605B (en) * | 2010-05-24 | 2013-01-16 | Univ Sheffield Hallam | Respiration monitoring device |
EP2575614A1 (en) * | 2010-05-24 | 2013-04-10 | Sheffield Hallam University | Respiration monitoring device |
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