EAR TEMPERATURE MEASURING DEVICE FIELD OF THE INVENTION The present invention relates generally to ear temperature measuring devices and particularly to an ear thermometer and sphygmometer that also plays music. BACKGROUND OF THE INVENTION
Ear temperature measuring devices are well known, and are particularly popular for measuring temperature of babies or infants. It is believed that the most relevant patent documents include:
US Patent 5,340,215 to Makita et al. describes a radiant energy clinical thermometer that senses heat rays from the external ear.
US Patent 5,062,432 to James et al. describes a personal temperature monitor that senses inner ear temperature. The monitor places an audible signal device at the ear of the individual being monitored to alert of elevated body temperature.
European Patent 0461068 to Metraux describes a tympanic (middle ear) thermometer with a display.
Russian Patent SU 601001 describes an ear temperature measuring device with two elastic tubes built into a central aperture of an obturating plug.
British Patent GB 2277377 describes a device with a heat-conductive temperature measuring medium made of a silicon material. The device provides a warning light and audible signal in the event of over-temperature. The device may be used either as a nipple to measure the temperature in the mouth or as an ear temperature measuring device. A button may be pushed to play music for the baby while the silicon material measures the temperature.
SUMMARY OF THE INVENTION The present invention seeks to provide a novel ear thermometer and sphygmometer that also plays music.
There is thus provided in accordance with a preferred embodiment of the present invention an ear temperature measuring device including a flexible probe insertable into an external acoustic meatus of an ear, a temperature sensor disposed in the flexible probe adapted for measuring a temperature of the ear, and an air pump in fluid communication with the flexible probe, the flexible probe being inflatable by the air pump such that the temperature sensor is moved closer to the external acoustic meatus when the flexible probe is inflated.
In accordance with a preferred embodiment of the present invention the flexible probe extends from a housing including a visual temperature display faced opposite to a distal end of the probe.
Further in accordance with a preferred embodiment of the present invention the air pump includes a push button located on the housing which pumps air to the flexible probe via at least one inlet hole formed in the housing.
Additionally in accordance with a preferred embodiment of the present invention the ear temperature measuring device includes a voiced annunciator for audibly annunciating a temperature measured by the sensor. Further in accordance with a preferred embodiment of the present invention the ear temperature measuring device includes a music generating device disposed in at least one of the housing and the flexible probe.
Still further in accordance with a preferred embodiment of the present invention the ear temperature measuring device includes control apparatus in electrical communication with the sensor and the music generating device and which controls operation of the music generating device such that the music generating device automatically starts playing music before the sensor is optionally positioned to measure a temperature of the ear and stops playing music when the sensor has sensed a generally steady-state temperature of the ear.
In accordance with a preferred embodiment of the present invention the ear temperature measuring device also includes a sphygmometer disposed in the flexible probe and adapted for measuring a pulse of the ear.
Additionally in accordance with a preferred embodiment of the present invention the ear temperature measuring device includes data logging apparatus in communication with the sensor for logging temperature data. The data logging apparatus may be in wired or wireless communication with the sensor. Preferably a disposable cover is provided for covering the probe.
The ear temperature measuring device may include an earphone band or earpiece attached to the housing.
The temperature sensor may be a negative temperature coefficient thermistor, a positive temperature coefficient thermistor, a radiative temperature sensing element, or a thermocouple.
BRIEF DESCRIPTION OF THE DRAWINGS
The present invention will be understood and appreciated more fully from the following detailed description, taken in conjunction with the drawings in which:
Fig. 1 is a simplified pictorial illustration of an ear temperature measuring device constructed and operative in accordance with a preferred embodiment of the present invention;
Fig. 2 is a simplified pictorial illustration of the ear temperature measuring device of Fig. 1 with a disposable cover for protecting a flexible probe of the device;
Fig. 3 is a simplified pictorial illustration of the ear temperature measuring device of Fig. 1 with earphones, constructed and operative in accordance with a preferred embodiment of the present invention; and
Fig. 4 is a simplified pictorial illustration of the ear temperature measuring device of Fig. 1 with an earpiece, constructed and operative in accordance with another preferred embodiment of the present invention.
DETAILED DESCRIPTION OF A PREFERRED EMBODIMENT Reference is now made to Fig. 1 which illustrates an ear temperature measuring device 10 constructed and operative in accordance with a preferred embodiment of the present invention.
Device 10 includes a flexible probe 12 insertable into an external acoustic meatus 14 of an ear 16. Flexible probe 12 may be constructed of an elastomeric material, such as rubber or neoprene, or a flexible plastic. A temperature sensor 18 is disposed in flexible probe 12 and is adapted for measuring a temperature of ear 16. Temperature sensor 18 may be any kind of temperature probe, such as a thermistor, a thermocouple, or a radiative temperature sensing element. Most preferably temperature sensor 18 is a thermistor and may be either a negative temperature coefficient thermistor or a positive temperature coefficient thermistor.
Flexible probe 12 extends from a housing 20 which includes a visual temperature display 22 faced opposite to a distal end 24 of probe 12.
An air pump 26 is in fluid communication with flexible probe 12. Specifically, in accordance with a preferred embodiment of the present invention, air pump 26 includes a push button 28 located on housing 20 which pumps air to probe 12 via one or more inlet holes 30 formed in housing 20 and/or push button 28. Fig. 1 shows flexible probe 12 inflated by air pump 26 such that temperature sensor 18 is moved towards the inner surface of external acoustic meatus 14 such that accurate temperature readings may be made. This may be
particularly important for a thermistor-type of sensor which measures the temperature by heat conduction.
In accordance with a preferred embodiment of the present invention, ear temperature measuring device 10 includes a voiced annunciator 32 for audibly annunciating a temperature measured by sensor 18.
In order to provide entertainment to a person while measuring his/her temperature, a music generating device 34 is disposed in housing 20, or alternatively in flexible probe 12. Music generated by music generating device 34 may be transmitted via holes 36 formed at distal end 24 of probe 12. Preferably control apparatus 38 is provided, such as a chip comprising control circuitry, which is in electrical communication with sensor '18 and music generating device 34. Control apparatus 38 controls operation of music generating device 34 such that device 34 automatically starts playing music before sensor 18 is optionally positioned to measure a temperature of ear 16 and stops playing music when sensor 18 has sensed a generally steady- state temperature of ear 16. In accordance with a preferred embodiment of the present invention, ear temperature measuring device 10 includes a sphygmometer 40 disposed in flexible probe 12 and adapted for measuring a pulse of ear 16.
Data logging apparatus 42 may be provided in wired or wireless communication with sensor 18 for logging temperature data. Reference is now made to Fig. 2 which illustrates that ear temperature measuring device 10 may be provided with a disposable cover 44 for covering and protecting probe 12. Cover 44 may snap on to the body of housing 20. It is noted that device 10 is shown deflated in Fig. 2. An on/off button 45 may be provided on housing 20.
Ear temperature measuring device 10 may be conveniently worn by a user in a variety of manners. For example, Fig. 3 illustrates device 10 with earphones 46, whereas Fig. 4 illustrates device 10 with an earpiece 48.
It will be appreciated by persons skilled in the art that the present invention is not limited by what has been particularly shown and described hereinabove. Rather the scope of the present invention includes both combinations and subcombinations of the features described hereinabove as well as modifications and variations thereof which would occur to a person of skill in the art upon reading the foregoing description and which are not in the prior art.