ITPD20100087A1 - INFRARED THERMOMETER PARTICULARLY FOR CLINICAL USE - Google Patents

INFRARED THERMOMETER PARTICULARLY FOR CLINICAL USE Download PDF

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Publication number
ITPD20100087A1
ITPD20100087A1 IT000087A ITPD20100087A ITPD20100087A1 IT PD20100087 A1 ITPD20100087 A1 IT PD20100087A1 IT 000087 A IT000087 A IT 000087A IT PD20100087 A ITPD20100087 A IT PD20100087A IT PD20100087 A1 ITPD20100087 A1 IT PD20100087A1
Authority
IT
Italy
Prior art keywords
sensor
infrared
infrared thermometer
distance
circuit
Prior art date
Application number
IT000087A
Other languages
Italian (it)
Inventor
Maurizio Moretto
Original Assignee
Laica Spa
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 Laica Spa filed Critical Laica Spa
Priority to ITPD2010A000087A priority Critical patent/IT1398865B1/en
Priority to DE112011100938T priority patent/DE112011100938T5/en
Priority to PCT/EP2011/053488 priority patent/WO2011113727A1/en
Priority to TW100108627A priority patent/TW201135201A/en
Publication of ITPD20100087A1 publication Critical patent/ITPD20100087A1/en
Application granted granted Critical
Publication of IT1398865B1 publication Critical patent/IT1398865B1/en

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
    • G01J5/0022—Radiation pyrometry, e.g. infrared or optical thermometry for sensing the radiation of moving bodies
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
    • G01J5/0003—Radiation pyrometry, e.g. infrared or optical thermometry for sensing the radiant heat transfer of samples, e.g. emittance meter
    • G01J5/0011—Ear thermometers
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
    • G01J5/02—Constructional details
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
    • G01J5/02—Constructional details
    • G01J5/021—Probe covers for thermometers, e.g. tympanic thermometers; Containers for probe covers; Disposable probes
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
    • G01J5/02—Constructional details
    • G01J5/0275—Control or determination of height or distance or angle information for sensors or receivers
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
    • G01J5/02—Constructional details
    • G01J5/04—Casings
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
    • G01J5/02—Constructional details
    • G01J5/04—Casings
    • G01J5/049—Casings for tympanic thermometers
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
    • G01J5/02—Constructional details
    • G01J5/08—Optical arrangements
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
    • G01J5/02—Constructional details
    • G01J5/08—Optical arrangements
    • G01J5/0846—Optical arrangements having multiple detectors for performing different types of detection, e.g. using radiometry and reflectometry channels

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Measuring And Recording Apparatus For Diagnosis (AREA)
  • Radiation Pyrometers (AREA)

Description

DESCRIZIONE DESCRIPTION

Il trovato riguarda un termometro principalmente destinato a misurazioni cliniche a distanza della temperatura cutanea. The invention relates to a thermometer mainly intended for remote clinical measurements of skin temperature.

Termometri di questo tipo sono diffusamente utilizzati in particolare per misurare la temperatura cutanea in prossimità della arteria temporale. Thermometers of this type are widely used in particular to measure the skin temperature in the vicinity of the temporal artery.

Normalmente questi termometri debbono essere posti a contatto con la zona cutanea interessata poiché altrimenti la misurazione da essi rilevata risulta assolutamente imprecisa. Essa à ̈ infatti largamente influenzata da errori dipendenti in particolare dalla distanza del captatore dalla cute del paziente. Poiché questi termometri trovano largo impiego nell’uso pediatrico à ̈ preferito che i medesimi non vengano direttamente posti a contatto con la superficie cutanea poiché in tal caso sarebbe difficile misurare la temperature ad esempio di un paziente che dorme, senza svegliarlo. Normally these thermometers must be placed in contact with the affected skin area as otherwise the measurement they take is absolutely inaccurate. It is in fact largely influenced by errors depending in particular on the distance of the sensor from the patient's skin. Since these thermometers are widely used in pediatric use, it is preferred that they are not directly placed in contact with the skin surface as in this case it would be difficult to measure the temperature of a sleeping patient, for example, without waking him up.

Sono stati pertanto sviluppati termometri capaci di fornire misurazioni ragionevolmente attendibili pur mantenendo il captatore ad una adeguata distanza dalla cute del paziente. Un esempio di tali termometri à ̈ descritto in US 6196714 nel quale si utilizzano due sorgenti luminose convergenti per determinare l’esatto posizionamento del captatore rispetto alla superficie cutanea del paziente. Thermometers have therefore been developed capable of providing reasonably reliable measurements while keeping the sensor at an adequate distance from the patient's skin. An example of such thermometers is described in US 6196714 in which two converging light sources are used to determine the exact positioning of the sensor with respect to the patient's skin surface.

L’uso di sorgenti luminose presenta tuttavia alcune controindicazioni tra cui il fatto che in un paziente che dorme si può indurre un repentino risveglio, con conseguenze anche potenzialmente dannose per la pupilla se questa fosse investita accidentalmente da raggi di luce a forte concentrazione. Inoltre, se la sorgente luminosa utilizzata non à ̈ del tipo a luce sufficientemente fredda, la concentrazione puntiforme della radiazione luminosa può causare alterazioni della temperatura misurata. However, the use of light sources has some contraindications, including the fact that in a sleeping patient a sudden awakening can be induced, with potentially harmful consequences for the pupil if it were accidentally hit by highly concentrated light rays. Furthermore, if the light source used is not of the sufficiently cold light type, the point concentration of the light radiation can cause alterations in the measured temperature.

Il problema alla base della presente invenzione à ̈ quello di mettere a disposizione un termometro ad infrarosso strutturalmente e funzionalmente concepito per ovviare a tutti gli inconvenienti sopra richiamati con riferimento alla tecnica nota citata. The problem underlying the present invention is that of providing an infrared thermometer structurally and functionally conceived to obviate all the drawbacks mentioned above with reference to the cited prior art.

Questo problema à ̈ risolto dall’invenzione mediante un termometro ad infrarosso realizzato in accordo con le seguenti rivendicazioni. This problem is solved by the invention by means of an infrared thermometer made in accordance with the following claims.

Le caratteristiche ed i vantaggi dl trovato meglio risulteranno dalla descrizione dettagliata che segue di un suo preferito ma non esclusivo esempio di realizzazione illustrato, a titolo indicativo e non limitativo, con riferimento alla figura 1 allegata, che rappresenta una vista laterale, parzialmente sezionata, di un termometro ad infrarosso secondo la presente invenzione. The characteristics and advantages of the invention will become clearer from the following detailed description of a preferred but not exclusive example of embodiment illustrated, by way of non-limiting example, with reference to the attached figure 1, which represents a side view, partially sectioned, of an infrared thermometer according to the present invention.

Nella figura, con 1 à ̈ complessivamente indicato un termometro ad infrarosso includente un involucro 2 al cui interno à ̈ contenuto un circuito di captazione di radiazione infrarossa 3 con un captatore 4 ed una guida d’onda 5. Il captatore 4 e la guida d’onda 5 hanno struttura e funzioni in sé note, come ad esempio descritto in US 2006215728 (A1) e servono per captare la radiazione infrarossa emessa da una sorgente di radiazione infrarossa quale la cute del paziente, principalmente in corrispondenza di una zona della fronte in cui à ̈ localizzata l’arteria temporale, per fornire una misurazione di temperatura. Tale misurazione di temperatura à ̈ tuttavia fortemente influenzata dalla distanza tra la sorgente di radiazione ed il captatore. Per garantire una distanza costante e nota tra tale sorgente ed il captatore 4 à ̈ previsto un circuito di consenso 6 collegato al circuito di captazione 3 per scegliere e/o attivare una funzione del medesimo quando la distanza del captatore 4 dalla detta sorgente à ̈ uguale ad (od al limite minore di) un valore prefissato. In the figure, 1 generally indicates an infrared thermometer including a casing 2 inside which there is a circuit for capturing infrared radiation 3 with a sensor 4 and a wave guide 5. The sensor 4 and the guide wave 5 have a structure and functions known per se, as for example described in US 2006215728 (A1) and are used to capture the infrared radiation emitted by an infrared radiation source such as the patient's skin, mainly in correspondence with an area of the forehead where the temporal artery is located, to provide a temperature measurement. However, this temperature measurement is strongly influenced by the distance between the radiation source and the sensor. To ensure a constant and known distance between this source and the sensor 4, a consent circuit 6 is provided connected to the collection circuit 3 to select and / or activate a function of the same when the distance of the sensor 4 from the said source is the same. ad (or at the lower limit of) a predetermined value.

Secondo l’invenzione il circuito di consenso comprende un interruttore di prossimità capacitivo 7 con uno o più elettrodi 8 di comando sensibili a variazioni del campo capacitivo nel proprio intorno. L’elettrodo 8 à ̈ collegato al circuito di consenso 6 tramite conduttori (non rappresentati) ed à ̈ posizionato sull’involucro 2 a lato del captatore 4. Poiché la perturbazione del dielettrico (aria) in prossimità dell’elettrodo 8 à ̈ determinata in funzione della distanza ad esempio del corpo e nella fattispecie della fronte del paziente dall’elettrodo stesso, si ottiene in questo modo un segnale di consenso alla misurazione di temperatura quando e se l’elettrodo 8 viene avvicinato alla cute in modo che la distanza tra il captatore 4 e la cute sia quella prescelta per una corretta misurazione di temperatura. Quando la distanza à ̈ dunque tale da perturbare il campo capacitivo nei dintorni dell’elettrodo sino al valore di soglia desiderato, scatta l’interruttore di prossimità capacitivo determinando l’attivazione del circuito di consenso che a sua volta può generare un segnale visivo o sonoro di consenso ovvero semplicemente attivare il circuito di captazione per accettare la misura di temperatura desiderata. According to the invention, the consent circuit comprises a capacitive proximity switch 7 with one or more control electrodes 8 sensitive to variations in the capacitive field in its surroundings. The electrode 8 is connected to the consent circuit 6 by means of conductors (not shown) and is positioned on the casing 2 at the side of the sensor 4. Since the perturbation of the dielectric (air) near the electrode 8 It is determined according to the distance, for example, of the body and in this case of the patient's forehead from the electrode itself. so that the distance between the sensor 4 and the skin is the one chosen for a correct temperature measurement. When the distance is therefore such as to perturb the capacitive field in the vicinity of the electrode up to the desired threshold value, the capacitive proximity switch trips, determining the activation of the consent circuit which in turn can generate a signal visual or audible consent or simply activate the collection circuit to accept the desired temperature measurement.

Il trovato consegue così gli scopi proposti con numerosi vantaggi rispetto allo stato dell’arte nota. Tra questi vi à ̈ il fatto che esso consente un corretto e ripetitivo posizionamento del captatore rispetto alla cute senza necessità di contatto alcuno con il paziente e soprattutto senza generare segali che ne possano disturbare la quiete od interagire con la misura in corso alterandola. The invention thus achieves the proposed aims with numerous advantages with respect to the state of the art. Among these is the fact that it allows a correct and repetitive positioning of the sensor with respect to the skin without the need for any contact with the patient and above all without generating signals that could disturb the stillness or interact with the measurement in progress, altering it.

Claims (3)

RIVENDICAZIONI 1. Termometro ad infrarosso particolarmente ad uso clinico comprendente un circuito di captazione di radiazione infrarossa con un captatore suscettibile di rilevare a distanza l’emissione infrarossa di una sorgente di radiazione infrarossa ed un circuito di consenso collegato a detto circuito di captazione per scegliere e/o attivare una funzione del medesimo quando la distanza di detto captatore dalla detta sorgente à ̈ minore od uguale ad un valore prefissato, caratterizzato dal fatto che detto circuito di consenso comprende un interruttore di prossimità capacitivo con almeno un elettrodo di comando sensibile a variazioni del campo capacitivo nel proprio intorno. CLAIMS 1. Infrared thermometer particularly for clinical use comprising a circuit for capturing infrared radiation with a sensor capable of detecting at a distance the infrared emission of an infrared radiation source and a consent circuit connected to said capturing circuit for selecting and / or activate a function thereof when the distance of said sensor from said source is less than or equal to a predetermined value, characterized in that said consent circuit comprises a capacitive proximity switch with at least one control electrode sensitive to variations in the capacitive field in its surroundings. 2. Termometro ad infrarosso secondo la rivendicazione 1, in cui detto elettrodo à ̈ posizionato da una stessa parte di detto termometro rispetto a detto captatore. 2. Infrared thermometer according to claim 1, wherein said electrode is positioned on the same side of said thermometer with respect to said sensor. 3. Termometro ad infrarosso secondo la rivendicazione 1 o 2, comprendente un involucro definente una impugnatura in posizione distale rispetto al captatore ed a detto elettrodo.3. Infrared thermometer according to claim 1 or 2, comprising a casing defining a handle in a distal position with respect to the sensor and to said electrode.
ITPD2010A000087A 2010-03-18 2010-03-18 INFRARED THERMOMETER PARTICULARLY FOR CLINICAL USE IT1398865B1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
ITPD2010A000087A IT1398865B1 (en) 2010-03-18 2010-03-18 INFRARED THERMOMETER PARTICULARLY FOR CLINICAL USE
DE112011100938T DE112011100938T5 (en) 2010-03-18 2011-03-08 Thermometer for clinical remote measurements of skin temperature
PCT/EP2011/053488 WO2011113727A1 (en) 2010-03-18 2011-03-08 An infrared thermometer, particularly for clinical use
TW100108627A TW201135201A (en) 2010-03-18 2011-03-15 An infrared thermometer, particularly for clinical use

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITPD2010A000087A IT1398865B1 (en) 2010-03-18 2010-03-18 INFRARED THERMOMETER PARTICULARLY FOR CLINICAL USE

Publications (2)

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ITPD20100087A1 true ITPD20100087A1 (en) 2011-09-19
IT1398865B1 IT1398865B1 (en) 2013-03-21

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ITPD2010A000087A IT1398865B1 (en) 2010-03-18 2010-03-18 INFRARED THERMOMETER PARTICULARLY FOR CLINICAL USE

Country Status (4)

Country Link
DE (1) DE112011100938T5 (en)
IT (1) IT1398865B1 (en)
TW (1) TW201135201A (en)
WO (1) WO2011113727A1 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9261407B2 (en) 2009-11-02 2016-02-16 Eric M. Lawson Thermometer for determining the temperature of an animal's ear drum and method of using the same
US9138149B2 (en) 2012-03-19 2015-09-22 Welch Allyn, Inc. Systems and methods for determining patient temperature
US9265427B2 (en) 2012-03-19 2016-02-23 Welch Allyn, Inc. Systems and methods for determining patient temperature
TWI456172B (en) * 2013-03-01 2014-10-11 Radiant Innovation Inc Infrared forehead thermometer with alignment function
CN104374476A (en) * 2013-08-13 2015-02-25 联想移动通信科技有限公司 Method and device for detecting environment temperature and terminal
CN103654735B (en) * 2013-11-06 2016-01-20 康尚医疗技术（丹阳）有限公司 Ear temperature measurement device and find the method for most Gao Erwen
CN105982650B (en) * 2015-03-04 2019-02-15 百略医学科技股份有限公司 Infra-red thermometer
CN109425435B (en) * 2017-08-31 2021-03-26 豪展医疗科技股份有限公司 Temperature measuring device with measurement alignment and measurement alignment method

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202004003021U1 (en) * 2004-02-27 2004-05-13 Braun Gmbh Infrared ear thermometer has an additional sensor for correction of infrared temperature measurement variations that arise from different ear canal geometries
EP2045590A1 (en) * 2007-10-03 2009-04-08 Avita Corporation Method and apparatus for non-contact temperature measurement

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1284119B1 (en) 1996-07-05 1998-05-08 Tecnica S R L INFRARED THERMOMETER INCLUDING AN OPTICAL AIMING SYSTEM
US20060215728A1 (en) 2005-03-28 2006-09-28 Chen-Chang Jang Forehead thermometer for hygienic measurement

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202004003021U1 (en) * 2004-02-27 2004-05-13 Braun Gmbh Infrared ear thermometer has an additional sensor for correction of infrared temperature measurement variations that arise from different ear canal geometries
EP2045590A1 (en) * 2007-10-03 2009-04-08 Avita Corporation Method and apparatus for non-contact temperature measurement

Also Published As

Publication number Publication date
IT1398865B1 (en) 2013-03-21
WO2011113727A1 (en) 2011-09-22
DE112011100938T5 (en) 2013-02-07
TW201135201A (en) 2011-10-16

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