CN107736878A - A kind of earphone of the thermistor-type of continuous measurement body temperature - Google Patents

Abstract

The invention provides a kind of earphone of the thermistor-type of continuous measurement body temperature, including：Earplug；Contact pin, it is connected with the monitor device of outside；Latex insulating ring, it is arranged on the outer wall of the earplug, when the earplug is filled in human body external auditory meatus, an incubation cavity is formed between the latex insulating ring and human body external auditory meatus and ear-drum；Thermal isolation film, it is arranged on the inwall of the earplug；NTC thermistor, the inner chamber front end of the earplug is arranged at, in the incubation cavity；A/D modulus transition elements, the intracavity posterior end of the earplug is arranged at, is connected with the NTC thermistor, and be connected by ear temperature data wire with the contact pin.The earphone of the thermistor-type of the continuous measurement body temperature on the outer wall of earplug by setting latex insulating ring, thermal isolation film is set on the inwall of earplug, so that NTC thermistor is in the working environment of a relative closure, so as to improve the accuracy of measurement body temperature.

Description

A thermistor-type earphone for continuously measuring body temperature

technical field

The invention relates to the field of body temperature measurement, in particular to a thermistor type earphone for continuously measuring body temperature.

Background technique

Body temperature is the most basic and important vital sign of a person, and the body temperature of a healthy person is relatively constant. The core temperature of the human body is at the position of the pulmonary artery. Since this temperature point is inside the human body, it cannot be actually measured. In daily application, the closest measurement point to the core temperature is the anus, followed by the mouth, and then the armpit. The eardrum is the temperature measurement point in the body closest to the pituitary gland, and theoretically it is also a point closer to the core temperature of the human body. Since this point cannot be directly measured by a contact thermometer, it was rarely used clinically in the past.

At present, medical temperature measuring instruments are divided into two categories, namely mercury thermometers and electronic thermometers. Mercury thermometers have been banned due to safety reasons.

Existing electronic thermometers are divided into two types: contact type and non-contact type. Contact type electronic thermometers generally use thermistors for measurement of body temperature in the anus, in the mouth and under the armpit. Because the anus and oral cavity are prone to cross-infection, these two measurement points are not used clinically. The axillary position is easy to measure, but requires close contact and takes a long time, so it is difficult to measure for children, critically ill patients, and patients during surgery. Non-contact electronic thermometers generally use far-infrared temperature measurement technology, and the measurement positions are forehead and eardrum. The advantage is that the measurement time is short (1-2 seconds), and the disadvantage is that the instrument has strict requirements on the ambient temperature (16-40°C) when the instrument is working, and the surrounding environmental factors of the patient also have a great influence on the measurement results. When it is large, it cannot work continuously. Therefore, it is mostly used clinically for primary screening of patients with fever, and doctors then make judgments based on experience.

In actual clinical practice, the current body temperature measurement method cannot solve some special situations that require continuous acquisition of patient temperature information, such as patients in surgery, who need continuous body temperature information; patients in intensive care need continuous body temperature information; Epidemic and infectious disease patients need uninterrupted body temperature information; patients in fever clinics need uninterrupted body temperature information, etc.

Contents of the invention

The invention provides a thermistor type earphone for continuously measuring body temperature, which is used to solve the technical problem that the existing body temperature measuring instrument cannot perform continuous body temperature detection so as to obtain continuous body temperature information.

In order to achieve the above object, the present invention adopts the following technical solutions: a thermistor-type earphone for continuously measuring body temperature, comprising: earplugs; pins, which are connected to external monitoring devices; latex insulation rings, which are arranged on the earplugs On the outer wall of the earplug, when the earplug is inserted into the human external auditory canal, a thermal insulation cavity is formed between the latex thermal insulation ring, the human external auditory canal and the eardrum; a thermal insulation film is arranged on the inner wall of the earplug; NTC thermistor , which is arranged at the front end of the inner cavity of the earplug, and is located in the heat preservation cavity; the A/D analog-to-digital conversion element is arranged at the rear end of the inner cavity of the earplug, and is connected with the NTC thermistor, And the ear temperature data line is connected to the pin.

Preferably, the latex thermal insulation ring has a truncated conical structure, the latex thermal insulation ring is fixed on the outer wall of the ear-in-ear sound guide tube of the earplug and the front end of the ear-in-ear sound guide tube is located in the inner cavity of the latex thermal insulation ring .

Preferably, a speaker is also arranged in the inner cavity of the earplug, and the speaker is connected to the pin through a speaker wire.

Preferably, the speaker is specifically arranged at a position close to the in-ear sound guide tube.

Preferably, the earplug further includes a volume adjuster, and the volume adjuster is respectively connected to the speaker and the pin through the speaker wire.

Preferably, the earplugs further include a Bluetooth wireless device, and the Bluetooth wireless device is respectively connected to the A/D analog-to-digital conversion element and the pin through the ear temperature data line.

Preferably, the Bluetooth wireless device is arranged inside the volume adjuster.

Preferably, the earplug specifically includes a left earplug and a right earplug, and the left earplug and the right earplug are respectively connected to the pins.

Preferably, the earplugs further include a left-right switch, and the left-right switch is arranged on the speaker wire.

Compared with the prior art, one or several technical solutions provided by the present invention have at least the following technical effects or advantages:

Because the earphone of a kind of thermistor formula that the present invention provides continuously measures body temperature, by arranging latex insulation ring on the outer wall of earplug, heat insulating film is set on the inner wall of earplug, then NTC thermistor is arranged on described In the insulation cavity formed between the latex insulation ring and the human external auditory canal and the eardrum, the NTC thermistor is in a relatively closed working environment, thereby improving the accuracy of measuring body temperature; by combining the NTC thermistor with the The A/D analog-to-digital conversion element is connected, and then connected to an external monitoring device through pins, so that the monitoring personnel can obtain the patient's body temperature at any time.

Furthermore, the latex insulation ring of the thermistor earphone provided by the present invention has a truncated cone structure, which is more convenient for users to insert earplugs into their ears.

Furthermore, in the thermistor-type earphones for continuous body temperature measurement provided by the present invention, the speaker is arranged at a position close to the ear-in-ear sound guide tube. On the one hand, it can close the front end of the inner cavity of the earplug to prevent heat loss and cut off the air flow. ; On the other hand, the speaker is closer to the eardrum, making the sound clearer.

Further, the A/D analog-to-digital conversion element in the thermistor earphone provided by the present invention is arranged at the rear end of the inner cavity of the earplug, forming a second heat-resistant plate, which can further prevent heat loss .

Furthermore, the thermistor-type earphones provided by the present invention for continuous body temperature measurement are provided with a left and right switch, and the patient can independently decide whether to receive the sound with the left ear or the right ear, which improves the convenience.

Description of drawings

FIG. 1 is a schematic structural diagram of a thermistor-type earphone for continuously measuring body temperature provided by an embodiment of the present invention.

The list of parts represented by each label in the accompanying drawings is as follows:

1-Earplug, 2-Pin, 3-Latex insulation ring, 4-Insulation film, 5-NTC thermistor, 6-A/D analog-to-digital conversion element, 7-Ear temperature data cable, 8-Speaker, 9 - speaker wire, 10 - volume adjuster, 11 - left and right switch.

detailed description

In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

Please refer to Fig. 1, the embodiment of the present invention provides a kind of thermistor type earphone of continuous measurement body temperature, comprises earplug 1; Pin 2, it is connected with external monitoring device; Latex insulation ring 3, it is arranged on described On the outer wall of the earplug 1, when the earplug 1 is plugged into the human body's external auditory canal, a thermal insulation cavity is formed between the latex thermal insulation ring 3, the human body's external auditory canal and the eardrum; the heat insulation film 4 is arranged on the inner wall of the earplug 1; Sensitive resistance 5, it is arranged on the inner cavity front end of earplug 1, is positioned at described insulation cavity; A/D analog-to-digital conversion element 6, it is arranged on the inner cavity rear end of earplug 1, and is connected with NTC thermistor 5, And it is connected to the pin 2 through the ear temperature data line 7 .

Wherein, the NTC thermistor 5 and the A/D analog-to-digital conversion element 6 are powered by the monitoring device.

In the specific design process, since the temperature range of the thermistor sensor is 25 degrees to 43 degrees, it can be used for low temperature monitoring, such as monitoring the body temperature of 26 degrees during heart surgery; the working environment requirement of the thermistor sensor is 10 degrees to 43 degrees. 35 degrees, a wider working environment temperature, can reduce the impact on the accuracy of the thermistor sensor; and the measurement accuracy of the thermistor sensor is +/-0.1 degrees. Therefore, the thermistor sensor can play a vital role in observing the effect of drug treatment under demanding special conditions, such as surgery, epidemic and infectious disease monitoring.

In the specific design process, the latex thermal insulation ring 3 can have multiple shapes. For the user, the earplug can be inserted into the ear conveniently. On the outer wall of the in-ear sound guide tube of the earplug 1 and the front end of the in-ear sound guide tube is located in the inner cavity of the latex insulation ring 3 .

In the specific design process, in order to facilitate communication between the guardian and the patient, preferably, a speaker 8 is provided in the inner cavity of the earplug 1 , and the speaker 8 is connected to the pin 2 through the speaker wire 9 .

Further, the loudspeaker 8 in the embodiment of the present invention is specifically arranged at a position close to the in-ear sound guide tube. Such a setting, on the one hand, can close the front end of the inner cavity of the earplugs, prevent heat loss, and cut off the air flow; on the other hand, the speaker is close to the eardrum, making the sound clearer.

In a specific design process, preferably, the earplug 1 further includes a volume adjuster 10 , and the volume adjuster 10 is respectively connected to the speaker 8 and the pin 2 through the speaker wire 9 . The volume regulator is set, and the patient can adjust the volume independently, which improves the convenience of use.

In the specific design process, preferably, the earplug 1 also includes a Bluetooth wireless device, and the Bluetooth wireless device is respectively connected to the A/D analog-to-digital conversion element 6 and the pin 2 through the ear temperature data line 7 . The transmission of the ear temperature data 7 can be through wired transmission or wireless transmission, which is convenient for patients to choose according to the situation. Further, preferably, the Bluetooth wireless device is arranged inside the volume adjuster 10, so that the earphone is more compact.

In a specific design process, preferably, the earplug 1 specifically includes a left earplug and a right earplug, and the left earplug and the right earplug are respectively connected to the pins 2 .

Further preferably, the earplug 1 also includes a left-right switch 11, which is arranged on the speaker wire, wherein the R key on the left-right switch 11 represents the switch of the right earplug, and the L key represents the switch of the left earplug. With the left and right conversion switch, the patient can independently decide whether the left ear receives the sound or the right ear receives the sound, which improves the convenience of use.

The thermistor-type earphones for continuous body temperature measurement proposed by the present invention enable the temperature range measured by the thermistor to be larger and the accuracy is higher through heat insulation treatment, which is beneficial to the monitoring of body temperature at low room temperature in winter and is more comfortable to use , to meet the various needs of users. Specifically, in the isolation treatment of infectious diseases, medical staff should be kept away from infection as much as possible, and remote monitoring is conducive to doctors' timely and effective monitoring of drug effects and changes in patients' conditions, and is convenient for critically ill patients and children.

Those skilled in the art will understand that embodiments of the present invention may be provided as methods, systems, or products. Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and equivalent technologies thereof, the present invention also intends to include these modifications and variations.

Claims (9)

1. A thermistor-type earphone for continuously measuring body temperature, characterized in that, comprising: earplugs (1); Pin (2), which is connected with an external monitoring device; The latex heat preservation ring (3), which is arranged on the outer wall of the earplug (1), when the earplug (1) is inserted into the human body's external auditory canal, a latex heat preservation ring (3) forms between the human body's external auditory canal and the eardrum. a thermal chamber; a heat insulating film (4), which is arranged on the inner wall of the earplug (1); NTC thermistor (5), which is arranged at the front end of the inner cavity of the earplug (1), and is located in the thermal insulation cavity; The A/D analog-to-digital conversion element (6), which is arranged at the rear end of the inner cavity of the earplug (1), is connected with the NTC thermistor (5), and is connected with the ear temperature data line (7) Connect to pin (2) above. 2. the thermistor-type earphone of continuous measurement body temperature according to claim 1, is characterized in that, described latex heat preservation ring (3) is conical structure, and described latex heat preservation ring (3) is fixed on described earplug On the outer wall of the ear-in sound guide tube and the front end of the ear-in sound guide tube is located in the inner cavity of the latex insulation ring (3). 3. The thermistor-type earphone for continuously measuring body temperature according to claim 2, characterized in that, a speaker (8) is also arranged in the inner cavity of the earplug (1), and the speaker (8) passes through the speaker Wires (9) are connected to the pins (2). 4. The thermistor-type earphone for continuously measuring body temperature according to claim 3, characterized in that, the loudspeaker (8) is specifically arranged at a position close to the sound-conducting tube in the ear. 5. the thermistor-type earphone of continuous measurement body temperature according to claim 3, is characterized in that, described earplug (1) also comprises volume adjuster (10), and described volume adjuster (10) passes through described Speaker wires (9) are respectively connected to the speaker (8) and the pins (2). 6. The thermistor-type earphone for continuously measuring body temperature according to claim 5, characterized in that, the earplug (1) also includes a bluetooth wireless device, and the bluetooth wireless device passes through the ear temperature data line (7 ) are respectively connected with the A/D analog-to-digital conversion element (6) and the pin (2). 7. The thermistor-type earphone for continuously measuring body temperature according to claim 6, characterized in that, the Bluetooth wireless device is arranged inside the volume adjuster (10). 8. The thermistor-type earphone for continuously measuring body temperature according to claim 7, wherein the earplug (1) specifically comprises a left earplug and a right earplug, and the left earplug and the right earplug are respectively connected to the earplug. Connect to pin (2) above. 9. The thermistor-type earphone for continuously measuring body temperature according to claim 8, characterized in that, the earplug (1) also includes a left-right switch (11), and the left-right switch (11) is arranged on the to the speaker wire (9).