Probe assembly, body temperature detector and body temperature detection system

Abstract

The embodiment of the utility model provides a probe assembly, a body temperature detector and a body temperature detection system. The probe assembly is applied to the body temperature detector, and the probe assembly comprises a first sensor used for detecting the first temperature of a detected object; a second sensor for measuring a second temperature around the probe assembly; and a thermal insulation element located between the first sensor and the second sensor. The first sensor and the second sensor are used for being communicated with a host in the body temperature detector through electric signals, the host determines the heat insulation coefficient of the heat insulation element according to the temperature difference between the first temperature and the second temperature, and the first temperature is corrected based on the heat insulation coefficient to obtain a body temperature measurement value. According to the scheme, the influence of the surrounding environment temperature on the body temperature can be avoided to the maximum extent, and the accuracy of the body temperature measurement value is high.

Description

Technical Field

[0001] The present application relates to the technical field of body temperature detection, and in particular to a probe assembly, a body temperature detector and a body temperature detection system. Background Art

[0002] At present, the equipment commonly used to measure body temperature includes mercury thermometers, forehead thermometers, ear thermometers, etc. The measurement parts of forehead thermometers and ear thermometers are not covered with clothes for insulation, and are easily affected by the ambient temperature during measurement, resulting in inaccurate body temperature measurements. The measurement time of mercury thermometers is long, and the basic workload of medical staff is large, and only discrete data can be obtained. The mercury thermometer is easily broken during measurement and operation, causing harm to personnel and mercury pollution. Utility Model Content

[0003] In view of the above problems, embodiments of the present application are proposed to provide a probe assembly, a body temperature detector, a body temperature detection system and a body temperature detection method that are less affected by the ambient temperature and have a high accuracy in measuring body temperature.

[0004] To achieve this purpose, the present application embodiment adopts the following technical solutions:

[0005] A probe assembly is used in a body temperature detector, and the probe assembly includes:

[0006] A first sensor, for measuring a first temperature of an object;

[0007] a second sensor, for measuring a second temperature around the probe assembly;

[0008] a heat-insulating element, located between the first sensor and the second sensor;

[0009] Among them, the first sensor and the second sensor are used to communicate with the host electrical signal in the body temperature detector, and the host determines the thermal insulation coefficient of the thermal insulation element according to the temperature difference between the first temperature and the second temperature, and corrects the first temperature based on the thermal insulation coefficient to obtain the body temperature measurement value.

[0010] Preferably, the probe assembly has two side surfaces that are arranged opposite to each other, the first sensor is located at one of the two side surfaces, and the second sensor is located at the other of the two side surfaces.

[0011] Preferably, the heat-insulating element is in the shape of a flat plate, and the first sensor and the second sensor are respectively located on two sides of the heat-insulating element in the shape of a flat plate; or

[0012] The heat insulation element has two grooves facing each other, and the first sensor and the second sensor are respectively located in corresponding side grooves; or

[0013] The probe assembly includes two thermal insulation elements, each of which has a groove; the two thermal insulation elements are stacked with the grooves facing each other, and the first sensor and the second sensor are respectively located in corresponding side grooves.

[0014] Preferably, the device further comprises a circuit board; the first sensor and the second sensor are electrically connected to the circuit board, and the circuit board is used to be electrically connected to the host;

[0015] The probe assembly includes two thermal insulation elements, which are stacked and located between the first sensor and the second sensor; and the circuit board is located between the two thermal insulation elements.

[0016] Preferably, it also includes a temperature measuring contact piece;

[0017] One side of the temperature measuring contact piece is exposed to contact with the object to be measured, and the other side is in contact with the first sensor. The temperature measuring contact piece conducts the temperature of the object to be measured to the first sensor.

[0018] As a preferred embodiment, a shell is also included;

[0019] The housing has a containing space, one side of the containing space is an open opening, and a flange is provided around the opening in a direction away from the containing space;

[0020] The temperature measuring contact piece is located at the opening of the accommodating space and is connected to the housing, so that the first sensor, the heat insulation element and the second sensor are contained in the closed accommodating space.

[0021] As a preferred embodiment, it also includes an injection molded body produced by an injection molding process;

[0022] The injection molded body comprises a detection part, a main body part and a middle part connecting the detection part and the main body part;

[0023] The probe assembly is embedded in the detection part, and the temperature measuring contact piece is exposed and protrudes outward so as to contact with the object to be measured;

[0024] A conductive wire is injection molded in the middle portion;

[0025] Wherein, the main body is used to install the host; the host is electrically connected to the first sensor and the second sensor through the wire.

[0026] Preferably, the device further comprises a circuit board; the first sensor and the second sensor are electrically connected to the circuit board, and the circuit board is used to be electrically connected to the host;

[0027] The circuit board and the host are both installed in the main body.

[0028] A body temperature detector comprises:

[0029] The above-mentioned probe assembly;

[0030] A host, wherein the host is in electrical signal communication with a first sensor and a second sensor in the probe assembly, and is used to determine a thermal insulation coefficient of a thermal insulation element in the probe assembly according to a temperature difference between a first temperature detected by the first sensor and a second temperature detected by the second sensor, and to correct the first temperature based on the thermal insulation coefficient to obtain a body temperature measurement value.

[0031] A body temperature detection system comprises:

[0032] The above-mentioned temperature detector;

[0033] The monitoring device or mobile device is communicatively connected with the body temperature detector, and is used to receive the body temperature measurement value output by the body temperature detector, and play and / or display it.

[0034] A body temperature detection method is applicable to a host of a body temperature detector, wherein the body temperature detector includes a probe assembly, wherein the probe assembly includes a first sensor, a second sensor, and a heat insulation element located between the first sensor and the second sensor; specifically, the method includes:

[0035] Acquire a first temperature of the object under test detected by a first sensor;

[0036] Acquiring a second temperature around the probe assembly detected by a second sensor;

[0037] determining a thermal insulation coefficient of the thermal insulation element according to a temperature difference between the first temperature and the second temperature;

[0038] Based on the thermal insulation coefficient, the first temperature is corrected to obtain a body temperature measurement value.

[0039] The technical solution provided in the embodiment of the present application can obtain the first temperature of the object to be measured and the second temperature around the probe assembly by setting the first sensor and the second sensor on the probe assembly; a thermal insulation element is set between the first sensor and the second sensor to isolate the temperatures of the areas where the two sensors are located to avoid mutual influence; the host can determine the thermal insulation coefficient of the thermal insulation element according to the temperature difference between the first temperature detected by the first sensor and the second temperature detected by the second sensor, and correct the first temperature based on the thermal insulation coefficient to obtain a body temperature measurement value, which can minimize the influence of the surrounding environment temperature on the body temperature, and the body temperature measurement value has high accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0041] Figure 1 A schematic diagram of an implementation structure of a probe assembly provided in one embodiment of the present application;

[0042] Figure 2 A schematic diagram of another implementation structure of a probe assembly provided in an embodiment of the present application;

[0043] Figure 3 A schematic diagram of another implementation structure of a probe assembly provided in an embodiment of the present application;

[0044] Figure 4 A schematic diagram of the structure of the main body of the detection assembly provided in an embodiment of the present application;

[0045] Figure 5 A schematic diagram of an implementation structure of a body temperature detector provided in one embodiment of the present application;

[0046] Figure 6 A schematic diagram of a body temperature detection system provided in one embodiment of the present application. DETAILED DESCRIPTION

[0047] The inventor of the present application has dissected the heat conduction principle of a temperature sensor and conducted a large number of experiments to find that: a temperature sensor (such as a thermistor) is a three-dimensional surface. When a temperature sensor is completely immersed in an object to be measured, the temperature sensor can accurately measure the temperature of the object, such as air, liquid, etc. However, when the temperature sensor is not completely immersed in the object, especially when the temperature sensor is used to measure the surface temperature of the object, since the temperature sensor is a three-dimensional surface, the three-dimensional surface opposite to the object in contact will be affected by the ambient temperature or other temperatures, resulting in a certain deviation between the measured temperature of the temperature sensor and the measured object, thereby affecting the accuracy of the temperature measurement.

[0048] In view of this, the inventor considered adding a thermal insulation element on one side of the temperature sensor to block the influence of the ambient temperature on the temperature sensor through the thermal insulation element. In this case, the thermal insulation coefficient of the thermal insulation element is required to be very high, the area of ​​the thermal insulation element must be large enough, and the thickness must also meet certain requirements. For example, the inventors have conducted a large number of experiments and found that as the temperature of the object being measured gets higher and higher, the requirements for the thermal insulation coefficient, area and thickness of the thermal insulation element become higher. Then in many scenarios with space constraints, this solution is subject to certain limitations. The large area and thickness of the thermal insulation element will result in a large volume of the thermometer, which is large and inconvenient to use. More users expect the thermometer to be small, lightweight and accurate in temperature measurement.

[0049] Based on this, the inventor designed the scheme of each embodiment provided in this application, and designed two sensors, the first sensor is used to measure the first temperature of the object to be measured, and the second sensor is used to measure the second temperature around the probe assembly; a thermal insulation element is set between the two sensors; the thermal insulation coefficient of the thermal insulation element can be obtained through the temperature difference between the two temperature sensors on both sides of the thermal insulation element, and then the first temperature is corrected according to the thermal insulation coefficient to obtain the body temperature measurement value. In this way, there is no need to have too high requirements on the thermal insulation coefficient, area and thickness of the thermal insulation element, and the use of a thermal insulation element with a smaller area and thickness can also ensure higher measurement accuracy. It can be seen that by adopting the scheme provided in each embodiment of the present application, the probe assembly and the body temperature detector including the probe assembly can be made small, light, low cost, and have higher measurement accuracy.

[0050] The present application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present application, rather than to limit the present application. It should also be noted that, for ease of description, only the parts related to the present application, rather than all structures, are shown in the accompanying drawings.

[0051] In the description of this application, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral body; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances. In this application, unless otherwise clearly specified and limited, the first feature "above" or "below" the second feature can include the first and second features directly contacting, and can also include the first and second features not directly contacting but contacting through another feature between them. Moreover, the first feature "above", "above" and "above" the second feature include the first feature directly above and obliquely above the second feature, or simply indicate that the first feature is higher in level than the second feature. The first feature "below", "below" and "below" the second feature include the first feature directly below and obliquely below the second feature, or simply indicate that the first feature is lower in level than the second feature. In the description of this embodiment, the terms "upper", "lower", "right", etc., are based on the directions or positions shown in the drawings, and are only for the convenience of description and simplification of operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present application. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0052] Figure 1 , Figure 2 and Figure 3 FIG. 1 is a schematic diagram showing the structure of a probe assembly 10 provided in an embodiment of the present application. Figure 1 As shown, the probe assembly 10 includes: a first sensor 11, a second sensor 12 and a thermal insulation element 14. The first sensor 11 is used for measuring the first temperature of the object to be measured. The second sensor 12 is used to measure the second temperature around the probe assembly 10. The thermal insulation element 14 is located between the first sensor 11 and the second sensor 12. The first sensor 11 and the second sensor 12 are used to communicate with the host electrical signal in the body temperature detector, and the host determines the thermal insulation coefficient of the thermal insulation element according to the temperature difference between the first temperature and the second temperature, and corrects the first temperature based on the thermal insulation coefficient to obtain the body temperature measurement value.

[0053] Here are some additional explanations: Figure 1 The structure shown is an exploded schematic diagram of the internal structure of the probe assembly and is not an assembly diagram.

[0054] like Figure 2 and 3In the example shown, the probe assembly 10 has two relatively arranged sides, such as a first side 101 and a second side 102, the first sensor 11 may be located at the first side of the two sides, and the second sensor 12 may be located at the second side 102 of the two sides. The first side 101 and the second side 102 may be two opposite inner walls of the probe assembly housing, and the first sensor and the second sensor are respectively arranged on the two opposite inner walls to shorten the distance between the sensor and the object to be measured, so as to obtain a more accurate sensing value. The first sensor 11 and the second sensor 12 may have a certain distance from the thermal insulation element 14, such as a distance A, which may be greater than or equal to 0.5 mm and less than or equal to 1 mm. The distance A enables the temperature to be attenuated through the air during the process of being transferred from the sensor (the first sensor 11 or the second sensor 12) to the thermal insulation element 14, which not only reduces the risk of penetrating the thermal insulation element 14 due to too high temperature, but also accommodates the installation error during the assembly process, which is convenient for assembly.

[0055] In some embodiments of the present application, a possible thickness of the heat insulating element 14 is B, 1.5 mm ≤ B ≤ 2 mm, so that the temperature conduction between the first sensor 11 and the second sensor 12 can be isolated as much as possible under the premise of meeting the size of the probe assembly 10. The heat insulating element 14 can be foam, which not only has a good thermal insulation effect, but also has low cost.

[0056] The probe assembly provided in the embodiment of the present application can be applied to various types of surface temperature measuring instruments, such as body temperature detectors. The heat insulation element in the embodiment of the present application can be Figure 1 The flat plate shape shown is a circular flat plate. Taking the body temperature detector as an example, since the surface temperature of the human body being measured is generally between 30 and 40°C, through research and a large amount of test data, it is found that the diameter of the circular flat plate-shaped insulation element is not less than 10mm and not more than 25mm. The thickness of the insulation element is not more than 15mm and not less than 5mm.

[0057] The following tables show the test data corresponding to the selection of insulation elements of different sizes in various test scenarios.

[0058] Table 1 Test results of probe assemblies with insulation elements of the same diameter but different thicknesses in a blackbody furnace

[0059]

[0060] Among them, T1 is the temperature detected by the first sensor, and T2 is the temperature detected by the second sensor. It can be seen that when the diameter of the insulation element is φ20mm and the thickness is 10mm, the measurement result of T1 is more accurate, which is the same as the set temperature of the black body furnace. It can be seen that the insulation element of this size has a good insulation effect, and the first sensor is least affected by the external temperature.

[0061] Table 2 Test results of probe assemblies with insulation elements of different diameters but the same thickness in a blackbody furnace

[0062]

[0063] It can be seen from Table 2 above that when the diameter of the heat insulation element changes, the measured value of the first sensor does not differ much.

[0064] Table 3 Data list of ear temperature stickers (with different thickness of heat insulation elements) using the probe assembly of this embodiment in human body test scenarios

[0065]

[0066] In this human test scenario, five volunteers participated in the test. The ear temperature body using the probe assembly of this embodiment is glued to the ear by external gluing. A mercury thermometer was selected as a reference in the test. It can be seen from Table 3 above that the higher the body temperature of the measured body, the greater the temperature difference between the first temperature T1 measured by the first sensor and the second temperature T2 measured by the second sensor. Three sizes of thermal insulation elements were used in the test corresponding to Table 3 above, such as φ20mm*5mm), φ20mm*7mm and φ20mm*10mm. Among them, φ20mm is the diameter of the thermal insulation element, and 5mm, 7mm and 10mm are the three thicknesses of the thermal insulation element. It can be seen from the value of "Thermometer-T1" in the above table that the thicker the thickness of the thermal insulation element, the smaller the difference between the first temperature T1 measured by the first sensor and the value measured by the mercury thermometer. It can be seen that the thicker the thermal insulation element, the less external influence the first sensor is subjected to, and the higher the accuracy of the measurement.

[0067] Table 4 Data list of ear temperature stickers (with different diameters of heat insulation elements) using the probe assembly of this embodiment in human body test scenarios

[0068]

[0069] Three thermal insulation elements with different diameters and the same thickness were used in the test corresponding to Table 4 above. It can be seen from the above that the higher the body temperature of the person being tested, the greater the temperature difference between the first temperature T1 measured by the first sensor and the second temperature T2 measured by the second sensor. From the value of "Thermometer-T1" in the above table, it can be seen that when the thickness of the thermal insulation element remains unchanged, the larger the diameter of the thermal insulation element, the less the first sensor is affected by the outside world.

[0070] Figure 1 , Figure 2 and Figure 3 Three different implementation structures of the present application are shown respectively. Figure 1In the first embodiment shown, the heat insulating element 14 can be in the shape of a flat plate, such as a circular plate, a square plate, an elliptical plate, a polygonal plate, etc., which can be determined according to the product appearance design requirements, and this embodiment does not specifically limit this. The first sensor 11 and the second sensor 12 are respectively located on both sides of the heat insulating element 14 in the shape of a flat plate.

[0071] Figure 2 In a second embodiment, the probe assembly 10 comprises two thermal insulation elements 14, wherein the thermal insulation elements 14 have grooves. Figure 2 From the cross-sectional view shown, the cross-sectional structure of the heat insulation element is in the shape of a U. The two heat insulation elements 14 are stacked with the grooves facing each other, and the first sensor 11 and the second sensor 12 are respectively located in the corresponding side grooves.

[0072] Figure 3 A third embodiment is shown, in which the heat insulating element 14 has two grooves facing each other, and the first sensor 11 and the second sensor 12 are respectively located in the corresponding side grooves. Figure 2 As can be seen from the cross-sectional view shown, the cross-sectional structure of the thermal insulation element 14 is H-shaped.

[0073] Figure 2 and Figure 3 In the scheme shown, the first sensor 11 is located in the groove on the corresponding side of the thermal insulation element 14, that is, except for the side of the first sensor 11 that contacts the first side 101, the other sides are surrounded by the thermal insulation element 14. The thermal insulation element 14 is a kind of heat preservation element. As the contact time between the probe assembly and the object to be measured increases, the side of the first sensor 11 corresponding to the first side 101 senses the temperature of the object to be measured, and the other sides are surrounded by the thermal insulation element 14. As time goes by, the temperature in the space where the first sensor 11 is located is very close to the temperature of the object to be measured; it is equivalent to the first sensor being immersed in a space with a consistent temperature, which solves the problem mentioned above that the other sides of the three-dimensional temperature sensor will be affected by the ambient temperature or other temperature, resulting in inaccurate temperature measurement. Similarly, the second sensor 12 is located in the groove, and the side corresponding to the second side 102 senses the second temperature around the probe assembly, and the other sides of the second sensor 12 are surrounded by the thermal insulation element 14, which can effectively improve the measurement accuracy of the second sensor 12.

[0074] Furthermore, the probe assembly 10 may also include a circuit board 15. Figure 1 , 2 As shown in Figure 3, the first sensor 11 and the second sensor 12 are electrically connected to the circuit board 15, and the circuit board 15 is used to be electrically connected to the host. In specific implementation, the first sensor 11, the second sensor 12 and the circuit board can be electrically connected by welding.

[0075] like Figure 3In the embodiment shown, the probe assembly 10 includes two thermal insulation elements 14, which are stacked and located between the first sensor 11 and the second sensor 12; the circuit board 15 is located between the two thermal insulation elements 14. There is a certain spacing C between the circuit board 15 and the thermal insulation elements on both sides, and the two spacings can be equal or unequal. In addition, this embodiment does not specifically limit the value of C.

[0076] like Figure 1 and Figure 2 In the embodiment shown, the first sensor 11, the second sensor 12 and the thermal insulation element 14 can be regarded as a sensor assembly; the circuit board 15 can be arranged outside the sensor assembly, and the first sensor 11 and the second sensor 12 have lead wires that are electrically connected to the circuit board 15 through the lead wires.

[0077] In order to speed up the temperature measurement and avoid the loss of heat during the conduction process, in some embodiments of the present application, Figure 2 or Figure 3 As shown, one possible structure of the probe assembly 10 is that the probe assembly 10 also includes a temperature measuring contact piece 16. One side of the temperature measuring contact piece 16 is exposed for contacting the object to be measured, and the other side is connected to the first sensor 11. The temperature measuring contact piece 16 conducts the temperature of the object to be measured to the first sensor 11. When the probe assembly 10 measures the first temperature of the object to be measured, the temperature measuring contact piece 16 fits with the object to be measured, and the temperature measuring contact piece 16 can conduct temperature so that the temperature of the object to be measured can be quickly conducted to the first sensor 11 through the temperature measuring contact piece 16. The temperature measuring contact piece 16 can be made of a metal material with good thermal conductivity, or it can be made of a non-metal material with good thermal conductivity, as long as good thermal conductivity is guaranteed, and the embodiment of the present application does not make specific limitations.

[0078] like Figure 1 As shown, the probe assembly described in this embodiment also includes a shell 17. The shell 17 has a accommodating space, one side of the accommodating space is an open opening, and a flange 170 is provided in the circumferential direction of the opening in the direction away from the accommodating space. At this time, the cross-section of the shell 17 is a "J" shape. The temperature measuring contact piece 16 is located at the opening of the accommodating space and is connected to the shell 17, so that the first sensor 11, the heat insulation element 14 and the second sensor 12 are contained in the closed accommodating space. In a specific implementation, the shell 17 can be obtained by a plastic injection molding process. The circumference of the temperature measuring contact piece 16 abuts against the space wall of the accommodating space, and the temperature measuring contact piece 16 can be a sheet with the same diameter as the opening. Of course, the cross-section of the temperature measuring contact piece 16 can also be a "U" shape, the side wall of the circumferential side of the temperature measuring contact piece 16 is accommodated in the accommodating space, the top of the side wall of the temperature measuring contact piece 16 abuts against the bottom wall of the accommodating space, and is limited by the height of the side wall of the temperature measuring contact piece 16.

[0079] The flange 170 can play a fixing role during assembly. Figure 4 In the embodiment shown, the probe assembly also includes a main body 20; the main body includes a detection part 21, a main body 22 and a middle part 23 connecting the detection part 21 and the main body 22. An embedding hole is provided at the detection part 21, and a sensor assembly including at least a first sensor 11, a second sensor 12 and a heat insulation assembly is embedded in the embedding hole. The flange 170 on the housing 17 is inserted into the hole wall groove of the embedding hole. The probe assembly is embedded in the detection part 21, and the temperature measuring contact piece 16 is exposed and protrudes outward so as to contact the object to be measured; a wire is injection-molded in the middle part 23. Among them, the main body 22 is used to install the host; the host is electrically connected to the first sensor 11 and the second sensor 12 through the wire.

[0080] In a more specific embodiment, the main body can be obtained by injection molding. For example, the main body can be formed by a silicone injection molding process, which can be called an injection molded body. The injection molded body has a detection part 21, a main body part 22, and a middle part 23 connecting the detection part 21 and the main body part 22.

[0081] Among them, in the specific implementation, the main body 22 is provided with a mounting groove, and the host is detachably mounted in the mounting groove of the main body 22; or the host is wrapped in the main body 22 and cannot be disassembled. The host is detachable, so that the probe assembly can become a consumable. For example, in a hospital, after a patient has used it, the medical staff can remove the host, and there is no need to disinfect the probe assembly. The patient can discard it or keep it for the next use after use. When the next patient needs to use it, take a new probe assembly and install the host on the main body 22 of the probe assembly to measure the temperature. The host 30 is not detachable. This situation is suitable for use in families, individuals or when body temperature is not measured frequently. It is understandable that when used as a family or individual, family members will not get sick frequently, so the number of times the thermometer is used is not high, and there is sufficient time to disinfect the thermometer for the next use. Or when an individual is in a sick state and needs to measure body temperature frequently, the thermometer is a personal special piece and will not be shared with other people. At this time, even if it is not disinfected, it will not cause cross infection. In this case, the cost will be lower because the probe assembly 10 does not need to be purchased frequently.

[0082] The probe assembly provided in this embodiment can be a part of a body temperature detector, and the probe assembly can fit the measuring part of the object to be measured to obtain the body temperature of the object to be measured. The measuring position of the object to be measured is not limited to the armpit, wrist, forehead, etc. Body temperature measurement is very important. Body temperature, blood pressure, pulse, breathing and pain together constitute the five major signs of life. Maintaining a constant body temperature is a necessary condition to ensure the body's metabolism and normal life activities, and abnormal body temperature can cause metabolic dysfunction and even endanger life. The core body temperature of a normal person is 36.5-37.5°C, and the surface temperature is about 33°C. Core body temperature refers to the temperature of important organs deep in the body, corresponding to the surface temperature, and the temperature gradient between the two is about 2-4°C. The phenomenon that the core body temperature of the body is lower than 36°C due to various reasons during the perioperative period is called perioperative hypothermia, also known as accidental perioperative hypothermia (which is different from controlled hypothermia for medical purposes). The incidence of accidental hypothermia in the perioperative period is still relatively high, and continuous temperature monitoring of the subjects is necessary to implement perioperative temperature management.

[0083] For this purpose, the present application also provides a body temperature detector including the above-mentioned probe assembly. The body temperature detector provided in this embodiment includes the probe assembly 10 and the host 30 provided in the above-mentioned embodiment. Among them, the specific implementation of the probe assembly 10 can be found in the above content, which will not be repeated this time. The host 30 is connected to the first sensor 11 and the second sensor 12 in the probe assembly 10 by electrical signals, and is used to determine the thermal insulation coefficient of the thermal insulation element in the probe assembly 10 according to the temperature difference between the first temperature detected by the first sensor 11 and the second temperature detected by the second sensor 12, and the first temperature is corrected based on the thermal insulation coefficient to obtain the body temperature measurement value.

[0084] The temperature detector provided in the embodiment of the present application can not only continuously detect body temperature, but also has a high temperature measurement accuracy. The temperature detector can be as follows Figure 2 The appearance structure shown in the figure, correspondingly, the circuit board in the probe assembly is the main board of the host. In specific implementation, the body temperature detector can be in the form of an ear thermometer, etc. The first sensor 11 and the second sensor 12 in the probe assembly are directly electrically connected to the main board. Figure 2 As shown, an adhesive member 13 may be provided on the probe assembly, and the adhesive member 13 is located on the side of the probe assembly 10 away from the second sensor 12. The adhesive member 13 can be bonded to the object to be measured to fix the probe assembly 10 to the temperature measurement part of the object to be measured, so that the probe assembly 10 will not fall off from the temperature measurement part of the object to be measured when measuring body temperature (such as axillary temperature), thereby improving the comfort of the object to be measured during measurement.

[0085] Furthermore, if Figure 2As shown, in some embodiments of the present application, the adhesive 13 is flush with the side of the temperature measuring contact piece 16 facing away from the first sensor 11. When the temperature measuring contact piece 16 abuts against the measuring part of the object to be measured, the adhesive 13 can just be bonded to the measuring part of the object to be measured, thereby ensuring that the temperature measuring contact piece 16 or the probe assembly 10 will not be separated from the measuring part during the temperature measurement process. A positional structural relationship that can be achieved between the adhesive 13 and the temperature measuring contact piece 16 is that the adhesive 13 surrounds the circumference of the temperature measuring contact piece 16 so that the temperature measuring contact piece 16 is located at the center of the adhesive 13, ensuring that after the adhesive 13 is bonded to the measuring part of the object to be measured, the temperature measuring contact piece 16 can abut against the measuring part of the object to be measured. In addition, the adhesive 13 can isolate the circumference of the temperature measuring contact piece 16 from the outside world, thereby preventing the outside temperature from affecting the temperature measuring contact piece 16 through the circumference of the temperature measuring contact piece 16, thereby ensuring the accuracy of the first temperature measurement.

[0086] In order to ensure that the body temperature of the object under measurement can be fully measured by the first sensor 11 through the temperature measuring contact piece 16, in some embodiments of the present application, the single-side width of the adhesive 13 is less than 1 / 4 of the single-side width of the temperature measuring contact piece 16, which can not only ensure the stable adhesion between the adhesive 13 and the object under measurement, but also enable the temperature measuring contact piece 16 to have a sufficient area to abut against the measuring part of the object under measurement, so as to facilitate the conduction of the body temperature of the object under measurement to the temperature measuring contact piece 16.

[0087] Furthermore, in order to prevent the temperature measuring contact piece 16 from being affected by the temperature of the adhesive 13, in some embodiments of the present application, there is a gap D between the adhesive 13 and the temperature measuring contact piece 16, 0.5mm≤D≤1.5mm. The adhesive 13 surrounds the temperature measuring contact piece 16 in a relatively sealed space, and the gap left therebetween does not transfer the temperature of the adhesive 13 to the temperature measuring contact piece 16, thereby ensuring the accuracy of the measured first temperature.

[0088] Alternatively, during use, the probe assembly can be adhered to the detection position of the object to be detected (such as the inside of the ear, armpit, etc.) on the side of the probe assembly away from the first sensor 11 (i.e., the second side 102) through medical tape.

[0089] Table 5 Data list of ear temperature stickers (same size of heat insulation elements) using the probe assembly of this embodiment in human body test scenarios

[0090]

[0091]

[0092] In the test corresponding to Table 5 above, thermal insulation elements of the same size (diameter and thickness) were used, but two different pasting methods were used in the test. The internal pasting method refers to: referring to the probe assembly of the structure shown in Figure 2, an adhesive is provided on the side of the probe assembly corresponding to the first sensor 11 (i.e., the first side 101 mentioned above) and the outside of the temperature measuring contact piece 16; the probe assembly is pasted to the detection position of the measured body by using the adhesive. The external pasting method refers to: a tape is pasted on the side of the probe assembly away from the first sensor 11 (i.e., the second side 102 mentioned above), and the probe assembly is pasted to the detection position of the measured body. From the value of "Thermometer-T1" in the above table, it can be seen that the internal pasting method and the external pasting method have little effect on the detection accuracy of the first sensor.

[0093] Alternatively, the temperature detector can be Figure 5 In the appearance structure shown, the host 30 and the detection component 10 are detachably connected; or the host 30 and the detection component are non-detachably connected. Figure 5 The body temperature detector shown is similar to the style of the axillary thermometer, but also different. The detection assembly extends out and can be clamped under the patient's armpit, and the corresponding part of the host 30 can be exposed outside.

[0094] The host can obtain the first temperature and the second temperature measured by the probe assembly 10. A calculation program is pre-stored in the host 30. The host can run the calculation program to determine the thermal insulation coefficient of the thermal insulation element based on the temperature difference between the first temperature and the second temperature; and then correct the first temperature based on the thermal insulation coefficient. How to determine the thermal insulation coefficient based on the temperature difference and how to correct the first temperature based on the thermal insulation coefficient are not specifically limited in this embodiment.

[0095] The host 30 may include but is not limited to: a processor capable of acquiring signals and a battery for providing electrical energy. The processor can conduct electrical signals with the probe assembly 10 through the conductive wire in the main body 20 to obtain the first temperature and the second temperature, determine the thermal insulation coefficient based on the temperature difference between the first temperature and the second temperature, and correct the first temperature based on the thermal insulation coefficient. The battery can provide electrical energy for the processor, the first sensor and the second sensor. As an alternative, all sensors can be NTC thermistors (negative temperature coefficient thermistors). NTC thermistors have the advantages of small size, high sensitivity to temperature, fast response and low cost, so that the sensor occupies a small space, the probe assembly 10 is small in size, the measurement time of the temperature tester is short, and the cost of the probe assembly 10 is low.

[0096] Taking the thermometer as an axillary temperature detector as an example, when the armpit is used as the measurement site for the first temperature measurement, in most cases the temperature measurement is performed by clamping the thermometer with the arm. However, when the user is in a special period and needs to detect continuous body temperature, clamping the thermometer with the arm all the time will not only make the user tired but also easy to forget, and the possibility of implementation is low; or it is inconvenient for the user to clamp it with the arm, such as measuring the axillary temperature of infants and young children. If the thermometer falls off, the result of the temperature measurement will definitely be inaccurate. Therefore, the host of the embodiment of the present application, before "determining the insulation coefficient of the insulation element according to the temperature difference between the first temperature and the second temperature", also includes:

[0097] If the variation of the second temperature within the set time period is less than a set value, triggering the step of determining the insulation coefficient of the insulation element according to the temperature difference between the first temperature and the second temperature;

[0098] If the variation range of the second temperature within the set time period is greater than or equal to the set value, the abnormal information of the probe component is output.

[0099] The output probe component abnormal information may include at least one of the following:

[0100] Triggering a speaker to output abnormal alarm audio; wherein the speaker is arranged on the host 30;

[0101] The probe assembly abnormality information is sent to a monitoring device or a mobile device to be played and / or displayed on the monitoring device or the mobile device; wherein the monitoring device or the mobile device is wirelessly connected to the host.

[0102] In specific implementation, the monitoring device may be a monitoring terminal at a hospital nurse station or a monitoring center; the mobile device may be a user's mobile phone, tablet computer or laptop computer, etc., which is not specifically limited in this embodiment.

[0103] For further information, see Figure 6 As shown, the embodiment of the present application also provides a body temperature detection system. The body temperature detection system includes the body temperature detector 40 provided in the above embodiment, and a monitoring device 41 or a mobile device 42. Among them, the monitoring device 41 or the mobile device 42 is connected to the body temperature detector 40 for receiving the body temperature measurement value output by the body temperature detector 40, and playing and / or displaying it.

[0104] In specific implementation, the monitoring device 41 may include but is not limited to: a monitor, a computer at a nurse station or a monitoring center, etc. The mobile device 42 may include but is not limited to: a mobile phone, a tablet computer, a laptop computer, a smart wearable device (such as a watch, etc.), etc.

[0105] Furthermore, for the above-mentioned hardware devices and systems, the present application also provides a body temperature detection method. The body temperature detection method is applicable to a host of a body temperature detector, the body temperature detector includes a probe assembly, the probe assembly includes a first sensor, a second sensor and a heat insulation element located between the first sensor and the second sensor. Specifically, the method may include but is not limited to:

[0106] 101. Obtain a first temperature of a measured object detected by a first sensor;

[0107] 102. Acquire a second temperature around the probe assembly detected by a second sensor;

[0108] 103. Determine a thermal insulation coefficient of the thermal insulation element according to a temperature difference between the first temperature and the second temperature;

[0109] 104. Based on the thermal insulation coefficient, correct the first temperature to obtain a body temperature measurement value.

[0110] Before the above step 103, the following steps may also be included:

[0111] If the variation of the second temperature within the set time period is less than a set value, triggering the step of determining the insulation coefficient of the insulation element according to the temperature difference between the first temperature and the second temperature;

[0112] If the variation range of the second temperature within the set time period is greater than or equal to the set value, the abnormal information of the probe component is output.

[0113] The output of the abnormal information of the probe assembly may include at least one of the following:

[0114] Triggering a speaker to output abnormal alarm audio; wherein the speaker is arranged on the host;

[0115] The probe assembly abnormality information is sent to a monitoring device or a mobile device to be played and / or displayed on the monitoring device or the mobile device; wherein the monitoring device or the mobile device is wirelessly connected to the host.

[0116] It should be noted here that the above-mentioned setting values ​​are not specifically limited in this embodiment and can be set manually.

[0117] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A probe assembly, characterized in that: Applied to a body temperature detector, the probe assembly comprises: A first sensor, for measuring a first temperature of an object; a second sensor, for measuring a second temperature around the probe assembly; A heat-insulating element is located between the first sensor and the second sensor, and the first sensor and the second sensor are both at a certain distance from the heat-insulating element; Among them, the first sensor and the second sensor are used to communicate with the host electrical signal in the body temperature detector, and the host determines the thermal insulation coefficient of the thermal insulation element according to the temperature difference between the first temperature and the second temperature, and corrects the first temperature based on the thermal insulation coefficient to obtain the body temperature measurement value.

2. The probe assembly according to claim 1, characterized in that: The probe assembly has two side surfaces that are opposite to each other, the first sensor is located at one of the two side surfaces, and the second sensor is located at the other of the two side surfaces.

3. The probe assembly according to claim 1, characterized in that: The heat-insulating element is in the shape of a flat plate, and the first sensor and the second sensor are respectively located on two sides of the heat-insulating element in the shape of a flat plate; or The heat insulation element has two grooves facing each other, and the first sensor and the second sensor are respectively located in corresponding side grooves; or The probe assembly includes two thermal insulation elements, each of which has a groove; the two thermal insulation elements are stacked with the grooves facing each other, and the first sensor and the second sensor are respectively located in corresponding side grooves.

4. The probe assembly according to any one of claims 1 to 3, characterized in that: It also includes a circuit board; the first sensor and the second sensor are electrically connected to the circuit board, and the circuit board is used to be electrically connected to the host; The probe assembly includes two thermal insulation elements, which are stacked and located between the first sensor and the second sensor; and the circuit board is located between the two thermal insulation elements.

5. The probe assembly according to any one of claims 1 to 3, characterized in that: Also includes temperature measuring contacts; One side of the temperature measuring contact piece is exposed to contact with the object to be measured, and the other side is in contact with the first sensor. The temperature measuring contact piece conducts the temperature of the object to be measured to the first sensor.

6. The probe assembly according to claim 5, characterized in that: Also includes the outer shell; The housing has a containing space, one side of the containing space is an open opening, and a flange is provided around the opening in a direction away from the containing space; The temperature measuring contact piece is located at the opening of the accommodating space and is connected to the housing, so that the first sensor, the heat insulation element and the second sensor are contained in the closed accommodating space.

7. The probe assembly according to claim 6, characterized in that: Also included are injection molded bodies produced by injection molding; The injection molded body comprises a detection part, a main body part and a middle part connecting the detection part and the main body part; The probe assembly is embedded in the detection part, and the temperature measuring contact piece is exposed and protrudes outward so as to contact with the object to be measured; A conductive wire is injection molded in the middle portion; Wherein, the main body is used to install the host; the host is electrically connected to the first sensor and the second sensor through the wire.

8. The probe assembly according to claim 7, characterized in that: It also includes a circuit board; the first sensor and the second sensor are electrically connected to the circuit board, and the circuit board is used to be electrically connected to the host; The circuit board and the host are both installed in the main body.

9. A body temperature detector, characterized in that: include: The probe assembly according to any one of claims 1 to 8; A host, wherein the host is in electrical signal communication with a first sensor and a second sensor in the probe assembly, and is used to determine a thermal insulation coefficient of a thermal insulation element in the probe assembly according to a temperature difference between a first temperature detected by the first sensor and a second temperature detected by the second sensor, and to correct the first temperature based on the thermal insulation coefficient to obtain a body temperature measurement value.

10. A body temperature detection system, characterized in that: include: The body temperature detector as claimed in claim 9; The monitoring device or mobile device is communicatively connected with the body temperature detector, and is used to receive the body temperature measurement value output by the body temperature detector, and play and / or display it.

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