SU584845A1 - Breathing sensor - Google Patents

Breathing sensor

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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
Application number
SU7502112892A
Other languages
Russian (ru)
Inventor
Семен Израйлович Авруцкий
Original Assignee
Предприятие П/Я М-5068
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Предприятие П/Я М-5068 filed Critical Предприятие П/Я М-5068
Priority to SU7502112892A priority Critical patent/SU584845A1/en
Application granted granted Critical
Publication of SU584845A1 publication Critical patent/SU584845A1/en

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)

Формула изобретени Invention Formula Датчик дыхани , содержащий камеру с термистором, электронагреватель, причем в стенках камеры выполнены отверсти  дл  сообщени  ее с дыхательным трактом пациента и с наружньпи пространством, отличающийс   тем, что, с целью повышени  точности измерений путем исключени  удвоени  частоты выходного сигнала, электронагреватель размещен в пространстве камеры между термистором и одним из отверстий.A respiration sensor containing a chamber with a thermistor, an electric heater, and holes in the chamber walls are made to communicate with the patient's respiratory tract and with the outer space, characterized in that, in order to improve measurement accuracy by eliminating doubling of the output signal, the heater between the thermistor and one of the holes. Источники информации, прин тые-во внимание при экспертизе:Sources of information taken into account in the examination: 1 .ЗЙЕ TtHjnsaction on medicaf EPectr nics , окт брь, 1960, с,321.1. ЗЬЕЕ TtHjnsaction on medicaf EPectr nics, Oct. Br., 1960, p. 321. фиг ffig f Фиг ZFig z
SU7502112892A 1975-02-14 1975-02-14 Breathing sensor SU584845A1 (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (5)

* Cited by examiner, † Cited by third party
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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