CA2103791A1 - Clinical thermometer with digital and spoken display - Google Patents

Clinical thermometer with digital and spoken display

Info

Publication number
CA2103791A1
CA2103791A1 CA 2103791 CA2103791A CA2103791A1 CA 2103791 A1 CA2103791 A1 CA 2103791A1 CA 2103791 CA2103791 CA 2103791 CA 2103791 A CA2103791 A CA 2103791A CA 2103791 A1 CA2103791 A1 CA 2103791A1
Authority
CA
Canada
Prior art keywords
signals
digital
display
conditioning
spoken
Prior art date
Legal status (The legal status 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 status listed.)
Abandoned
Application number
CA 2103791
Other languages
French (fr)
Inventor
Andres Ursueguia Balbuena
Armando Lazaro Cantabrana
Carlos Salvado Usach
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ciberveu Sa
Original Assignee
Andres Ursueguia Balbuena
Armando Lazaro Cantabrana
Carlos Salvado Usach
Ciberveu, S.A.
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
Priority to ES92.00889 priority Critical
Priority to ES9200889A priority patent/ES2043548B1/en
Priority to ES92.01462 priority
Priority to ES9201462A priority patent/ES2048660B1/en
Application filed by Andres Ursueguia Balbuena, Armando Lazaro Cantabrana, Carlos Salvado Usach, Ciberveu, S.A. filed Critical Andres Ursueguia Balbuena
Publication of CA2103791A1 publication Critical patent/CA2103791A1/en
Application status is Abandoned legal-status Critical

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01DMEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D7/00Indicating measured values
    • G01D7/12Audible indication of meter readings, e.g. for the blind
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01KMEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K13/00Adaptations of thermometers for specific purposes
    • G01K13/002Adaptations of thermometers for specific purposes for measuring body temperature

Abstract

ABSTRACT

Clinical thermometer with digital and spoken display.

The device comprises an input coming from a conditioning stage of signals given by a sensor, the latter consists of a negative temperature coefficient (NTC) resistor devised to be placed in contact with an area of the human body, a signal transducer consisting a resistance capacity load network, a microcontrol-ler devised to receive information from the prior stages with-out needing an analog/digital conversion and having an output for a voice synthesizer that includes filters for eliminating spurious signals, and an amplifying stage of audible signals in view to the driving of an acoustic transducer, as a speaker, and a digital display of the measured temperature.

The device also comprises the association in a unique integrated circuit of the stage conditioning the signals coming from the probe, the microcontroller and the stage conditioning the low frequency signals applied to the speaker, said integrated circuit including a voice synthesizer, a measuring circuit and a microcontroller sending out the appropriate signals to the ideal modules formed by the circuit.

Appliable to the visual and sound displaying of the human body temperature.

Description

2~37~

This InYention relates to a clinlcal thermometer wlth dl-gltal and spoken dlsplay.
Cllnlcal thermometers are known in the present state of the art, that Incorporate a dlsplay for the measured tempera-ture values, Indlcatlng the sald values by means of flgures, sometlmes along wlth other Indicatlons. In some cases, the known models show leglbllity problems, speclally at a certaln dlstance and to people wlth slght problems, and thls Is speclal-ly true whenever LCD dlsplays are used.
The temperature gauge to be hereln disclosod Is further characterlsed In that It is able to send out Intelllglble sounds correspondlng to the words that indicate the temperature values, so that slghtless people and other people wlth slght deflclency could use the thermometer with no need to read the values, but by only hearlng perceptlon of the sald values. To thls end, the electronlc clrcult of this new cllnlcal thermometer Includes a volce synthetizer that, at the same tlme the dlsplay shows fl-gures correspondlng to the thermal values measured, sends out sound slgnals whlch as a whole form words, also Indlcatlng the values measured by the device.
In the present patent the structure of a clrcult Is descrlbed on whlch the measuring devlce for the human body temperature ls based, sald clrcult belny connected, on the one hand, to a probe devlsed to be placed In contact wlth the human body, and on the other hand, to a speaker devlsed to provlde slgnals correspondlng to the temperature values, as well as a dlsplay deslgned to exhibit signs correspondlng to the sald va-lues.
The proper clrcuit, represented In the block dlagram ac-companylng the description of the patent, functlonally Includes ~,.

~1 ~37~
a conditionlng stage of the lnput signals, a mlcrocontroller and a conditionlng stage of voice slgnals applled to the speaker.
Said circuit can be embodied ln several ways, one of them conslstlng of an assembly of discrete components dyly bullt up, though, accordlng to the current physlcal constltution of elec-tronlc circults, the integrated constructlon of sald components Is preferred, In whlch the components carry out the loglc func-tlons orlglnatlng the operatlon of the devlce.
For better understandlng of the above descriptlon, a draw-lng is attached In whlch a practical case of embodlment of the Invention is shown, schematically and only as a non llmltlng example.
The drawing is a block diagram In which the stages deslgna-ted with numerals correspond to the following parts of the clr-cuit.
Block 1 conslsts of a thermal probe, that Is, a devlce sen-sltive to the temperature level and fluctuatlons, providing an electrlcally measurable signal which Is proportlonal to the applied temperature. The probe Includes a NTC or negatlve temperature coefflcient resistor, characterlsed In that its ohmic ~alue decreases as the applled temperature decreases.
The system operates accord~ng to usage tables supplled by the manufacturer, so that the resistance-temperature ratlo Is sim-ple and fast.
~ lock 2 carrles out the conditionlng of slgnals produ-ced by the thermal probe and translates the value of the NTC
resistor Into data dlrectly processable by a mlcroprocessor or a mlcrocontroller bullt in the devlce. This circult Is ba-sed on a reslstance-capaclty loading network formed by a pre-cislon reslstor, the NTC reslstor and a capacltor.

- ' . . ' , 3 21~379~ 1 This way the temperature Is directly measured from the microcontroller, wlth no need to ~nclude an analog/dlgltal converter In the device deslgn. In add~tlon, due to the me- !
thod used, errors or~glnat~ng from the voltage drop of the batterles and by the condltlon of the ca~acltor are elImlna-ted.
Block 3 makes up the mlcrocontroller for the whole sys-tem, by means of wh~ch the temperature Is measured, Informa-tlon Is supplled to a set of quartz crystals bullt In the devlce, and data necessary to the volce synthetlzer are also provlded. The m~crocontroller ~s custom made and Is based on a flnite state machlne, duly programmed to carry out the ge-neral operatlon algor~thm of the thermometer and the communi-catlon with the several external modules (synthetlzèr, quartz crystals and NTC reslstor.
Due to the technology used, synthesls module and liquld crystal 1nterface modllle are physlcally Integrated wlth the mlcrocontroller, sald technology being des1gnated ASIC.
Block 4 ensures the conditloning of analog volce slgn-als, Includlng the fllterlng and ampllflcatlon of the sald slgnals. The module formlng thls stage Is Integrated Into the above mentloned component.
Sald stage 4 comprlses, In accordance wlth the above mentloned, a set of fllters to ellmlnate spurlous slgnals that may have been reproduced In prior stages and Includes volce synthetlzatlon, the signals of whlch, belng of llttle amplltude, are magnlfled by an ampllfler butlt In the same stage, provldlng the apropriate amplltude for drlvlng the speaker formlng stage 5. The latter, In a preferred embodl-ment, wlll be bullt In the thermometer houslng.

- Display 6 is of the LCD, easy perception type and it will show on screen values corresponding to, for instance.
the human body temperature level at a given moment, the max-imum and minimum values, and other information.
Amldst the funct~onal parts formlng the cl~nlcal thermo-meter dlsclosed In the orlginal patent, three parts are Invar-lable and ~nd~spensable the probe for the immedlate senslng of the thermal level of the human body, wh~ch Is the magnltude to be measured; the speaker for the send~ng out of sound slgn-nals lndlcatlng the measured values, and the dlsplay for the vlsual exhlbltlon of the values. These parts, therefore, ~111 not be the subject of further conslderations.
Functlonal parts definlng the essentlallty of the clr-cult formlng the cllnlcal thermometer accordlng to the orlgln-al patent constitute the subject matter of thls Patent, whlch contemplates the practlcal embodlment of the above mentloned parts.
The matter Is, according to the appended clalms, to make blocks 2, 3 and 4 of the diagram accompanying the descrlption of the orlglnal patent ~n the form of a unlque equlvalent block, formed by an Integrated clrcult of the type called ASIC
or speclflc for the foreseen appllcatlon. Sald clrcult carrles out the functlons of the above mentloned blocks, with the ad-vantage of slmpllflcatlon and slze and welght reductlon. ~he cost of the lntegrated clrcult, even though thls Is made accord-ing to the speclflcations of the thermometer manufacturer, Is also slgnlflcantly reduced.
When analyslng the functional structure of the unlfled block that now forms the forms the maln part of the thermometer constitutlon, the followlng subassemblles may be clted, bearlng in mind that dlstlnction is merely ~o1rQal~and just In order to follow the input and output signals runnlng, respectlvely.
1. A voice synthe~i~er based In ADPCM technology of 3 bits, allowing to obtain an audible frequency range resultlng in a voice quality which is sufficlent for the output stage.
Said syntheslzer Is based on a 12 Kbytes memory contalnlng the voice to be synthesized and a machine of synchronous states that directlons the memory and coord~nates the approprlate messages to shape the signs to be displayed, wlthln a range of values from 32.0 to 42.0 centigrad degrees.
2. A measurlng clrcult based on a machlne of synchronous states that uses d~gital s~gnals to directly carry out the measurement on the NTC reslstor assoclated to the probe. Thls allows to el~mlnate an interface for the analog/dlgltal conver-slon.
3. A mlcrocontroller, also based on a machlne o~ synchro-nous states and servlng to send the approprlate slgnals to every Ideal module of the clrcult, in order to carry out the algorlthm or operatlon necessary for the case: startlng of the devlce, measurement of the phys~cal magnitude, feedlng current applled to the volce syntheslzer and to the s~gn dlsplay, as well as the dlsconnectlon of the devlce.
lt is worthwhlle to point out that the measurement method on the thermometer probe allows conslderlng the Input slgnal condltloner as a mere software routlne, slnce there Is no module devlsed to brlng about the analog/dlgltal converslon. The employ-ed method uses dlrectly the signals avallable In the mlcrocon-troller to carry out a frequency-temperature converslon. That is, there does not exist physlcally an A/D converter module In the Integrated clrcult that gathers the above mentloned functlon-al stages.

%1~379~
Temperature measurement is done by computlng the number of charges and d~scharges effected by the NTC reslstor on a capacltor and refer lng it to the number of charges and dis-charges effected on a resistor of known value. From the result-lng ratlo the NTC value Is obtalned, and this value corresponds, accordlng to a prevlously established table, to the temperature of the probe. Thls measurement method makes it posslble to s~m-pllfy at maxlmum the related module, as well as to obtaln a measurement value which is stable in relatlon to changes In the feeding voltage ~supplied by a set of batterles Included In the device houslng) and to differences In the ohmlc value toleran-ces of the capacitor used.
A further advantage of the embodlment under descrlptlon is the very small number of components dlrectly Involved with the measurement: just a capacitor, a low tolerance reslstor and the NTC reslstor assoclated to the probe.
In a preferred embodiment, the new temperature gauge wlll comprlse a houslng showlng, In a easlly accesslble plac~, the thermal probe arrangement, able to be applled to the hu-man body, the housing ~ncluding as well the speaker compart-ment and a set of openings for the output of the generated sounds.

Claims (4)

1. Clinical thermometer with digital and spoken dis-play, devised to the generation of signals resulting in the presentation of signs on a display and the generation of sounds provided by a speaker, characterised in that it com-prises an electronic circuit based on the use of a central process unit incorporating a set of memories and being pro-grammable, having an input to which a sensor capable of re-acting to the temperature fluctuations is connected, the said sensor consisting of a negative coefficient temperature resistor, a signal conditioning block for signals provided by the sensor, a block that includes a microcontroller, a conditioning stage for analog signals originating intel-ligible sounds provided by a speaker, and a displaying stage for the values on a display.
2. Clinical thermometer with digital and spoken dis-play, according to claim 1, characterised in that the signal generated by the negative temperature coefficient resistor consists of a datum directly processable by the microcon-troller built in the device, inclusing an R-C loading net-work formed by a precision resistor, the NTC resistor and a capacitor.
3. Clinical thermometer with digital and spoken dis-play, according to claim 1, characterised in that the built-in microcontroller shows outputs corresponding to quartz crystals for stabilisation, supplying the necessary data to the voice synthetizer module and incorporating synthesis module and liquid crystal interface moduleforming the value display.
4. Clinical thermometer with digital and spoken display, according to claim 1, characterised in that it comprises the physical and functional association in a unique integrated circuit of the stages corresponding to the conditioning of input signals coming from the probe, the microcontroller and the conditioning of low frequency signals sent out by the speaker, said integrated circuit containing a voice synthes-izer to generate audible frequency signals forming the sound signals which indicate the value of the measured temperature, along with a measurement circuit using said digital signals to directly effect the evaluation of the magnitude in the NTC resistor associated to the probe, and a microcontroller devised to send out signals corresponding to the ideal modu-les in order to carry out the respective operations.
CA 2103791 1992-04-28 1992-10-29 Clinical thermometer with digital and spoken display Abandoned CA2103791A1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
ES92.00889 1992-04-28
ES9200889A ES2043548B1 (en) 1992-04-28 1992-04-28 Clinical thermometer with digital indication and spoken.
ES92.01462 1992-07-14
ES9201462A ES2048660B1 (en) 1992-04-28 1992-07-14 Improvements introduced in the object of the main patent no. 9200889 by "clinical thermometer with digital indication and spoken".

Publications (1)

Publication Number Publication Date
CA2103791A1 true CA2103791A1 (en) 1993-10-29

Family

ID=26154620

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2103791 Abandoned CA2103791A1 (en) 1992-04-28 1992-10-29 Clinical thermometer with digital and spoken display

Country Status (21)

Country Link
JP (1) JPH06504852A (en)
AU (1) AU660202B2 (en)
BE (1) BE1006063A5 (en)
BG (1) BG98048A (en)
BR (1) BR9206209A (en)
CA (1) CA2103791A1 (en)
CZ (1) CZ288893A3 (en)
DE (1) DE4294870T1 (en)
DK (1) DK139393A (en)
FI (1) FI934286A (en)
GB (1) GB2274514A (en)
GR (1) GR1001570B (en)
HU (1) HUT65976A (en)
LU (1) LU88430A1 (en)
MC (1) MC2338A1 (en)
NL (1) NL9220013A (en)
NO (1) NO932612L (en)
PT (1) PT101228A (en)
SE (1) SE9303480L (en)
SK (1) SK148793A3 (en)
WO (1) WO1993022639A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8487738B2 (en) 2006-03-20 2013-07-16 Medical Solutions, Inc. Method and apparatus for securely storing medical items within a thermal treatment system
US8636691B2 (en) 2005-10-27 2014-01-28 Patented Medical Solutions, Llc Method and apparatus to indicate prior use of a medical item
US8734404B2 (en) 2005-03-17 2014-05-27 Patented Medical Solutions, Llc Lay flat tubing
US9119912B2 (en) 2001-03-12 2015-09-01 Medical Solutions, Inc. Method and apparatus for controlling pressurized infusion and temperature of infused liquids

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998038953A1 (en) 1997-03-03 1998-09-11 Medical Solutions, Inc. Method and apparatus for pressure infusion and temperature control of infused liquids
DE19909577A1 (en) * 1999-03-04 2000-09-07 Hauser Klaus Baby food bottle temperature measuring instrument has threshold signal transducer that provides optical and acoustic signals in case of attainment of set temperature
US6467953B1 (en) * 1999-03-30 2002-10-22 Medical Solutions, Inc. Method and apparatus for monitoring temperature of intravenously delivered fluids and other medical items
GB2356052B (en) * 1999-11-05 2001-09-26 Draco Tech Internat Corp Ear thermometer
US8226605B2 (en) 2001-12-17 2012-07-24 Medical Solutions, Inc. Method and apparatus for heating solutions within intravenous lines to desired temperatures during infusion
US7611504B1 (en) 2004-03-09 2009-11-03 Patented Medical Solutions Llc Method and apparatus for facilitating injection of medication into an intravenous fluid line while maintaining sterility of infused fluids
JP2006118926A (en) * 2004-10-20 2006-05-11 Omron Healthcare Co Ltd Electronic clinical thermometer
US7706671B2 (en) 2005-03-16 2010-04-27 B2M Asset Management, Llc Multi-function liquid container
US9211381B2 (en) 2012-01-20 2015-12-15 Medical Solutions, Inc. Method and apparatus for controlling temperature of medical liquids
US9656029B2 (en) 2013-02-15 2017-05-23 Medical Solutions, Inc. Plural medical item warming system and method for warming a plurality of medical items to desired temperatures

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2848112A1 (en) * 1978-11-06 1980-05-08 Rowenta Werke Gmbh Electronic clinical thermometer with digital display - has circuit with A=D converter and short circuiting switch for oscillator of converter
US4428685A (en) * 1979-08-22 1984-01-31 Lemelson Jerome H Temperature talking indicating device
HU186472B (en) * 1982-02-12 1985-08-28 Lajos Oroszlany Electric thermometer, in particular for the blinds and men of defective vision
JPS5968632A (en) * 1982-10-13 1984-04-18 Rhythm Watch Co Ltd Electronic clinical thermometer
JPH0221732B2 (en) * 1983-04-15 1990-05-16 Matsushita Electric Works Ltd
JPH0467139B2 (en) * 1983-10-26 1992-10-27 Seiko Epson Corp
JPS61167827A (en) * 1985-01-21 1986-07-29 Omron Tateisi Electronics Co Electronic thermometer
FR2644615B1 (en) * 1989-03-15 1991-08-30 Seia perfects voice Thermometer

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9119912B2 (en) 2001-03-12 2015-09-01 Medical Solutions, Inc. Method and apparatus for controlling pressurized infusion and temperature of infused liquids
US8734404B2 (en) 2005-03-17 2014-05-27 Patented Medical Solutions, Llc Lay flat tubing
US8734405B2 (en) 2005-03-17 2014-05-27 Patented Medical Solutions, Llc Lay flat tubing
US8636691B2 (en) 2005-10-27 2014-01-28 Patented Medical Solutions, Llc Method and apparatus to indicate prior use of a medical item
US8487738B2 (en) 2006-03-20 2013-07-16 Medical Solutions, Inc. Method and apparatus for securely storing medical items within a thermal treatment system

Also Published As

Publication number Publication date
DE4294870T1 (en) 1994-05-05
SE9303480L (en) 1993-10-29
HU9303724D0 (en) 1994-04-28
HUT65976A (en) 1994-08-29
DK139393A (en) 1993-12-15
FI934286A0 (en) 1993-09-30
CZ288893A3 (en) 1994-08-17
AU2946592A (en) 1993-11-29
WO1993022639A1 (en) 1993-11-11
BE1006063A5 (en) 1994-05-03
FI934286A (en) 1993-10-29
AU660202B2 (en) 1995-06-15
NO932612L (en) 1993-11-11
DK139393D0 (en) 1993-12-15
JPH06504852A (en) 1994-06-02
FI934286D0 (en)
SE9303480D0 (en) 1993-10-22
GB2274514A (en) 1994-07-27
BR9206209A (en) 1995-10-31
GR1001570B (en) 1994-05-31
LU88430A1 (en) 1994-01-05
SK148793A3 (en) 1994-05-11
DE4294870T0 (en)
NO932612D0 (en) 1993-07-20
BG98048A (en) 1994-08-15
NL9220013A (en) 1993-11-16
GB9315689D0 (en) 1994-02-16
MC2338A1 (en) 1994-05-31
PT101228A (en) 1994-07-29

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