CN213588249U - Newborn body temperature detecting probe - Google Patents

Abstract

The utility model relates to a neonate's body temperature test probe, the utility model provides a problem of prior art, its technical scheme main points are, including the probe casing, the probe contact, thermistor RT1 and thermistor RT2, the protection turn-ups has the connection arch to the inboard center extension of probe casing, thermistor RT1 and thermistor RT2 parallel fix the center department at the back of probe contact, and thermistor RT1 and thermistor RT2 along the central line symmetrical arrangement of probe contact, the probe contact is filled out and is established in the probe casing, it is equipped with thermal-insulated glue film to fill out between the probe contact back and the probe casing, the back at the probe contact is evenly scribbled to thermal-insulated glue film, one cross the line hole has been seted up to one side of probe casing, partial pressure detection circuit that thermistor RT1 corresponds is the same with the partial pressure detection circuit structure that corresponds with thermistor RT 2.

Description

Newborn body temperature detecting probe

Technical Field

The utility model belongs to a human temperature detection device relates to a neonate's body temperature test probe.

Background

Body temperature detection is common detection in medical detection, and the temperature inside a human body is kept constant, so that the body temperature detection is a necessary condition for ensuring normal running of metabolism and life activities. Body temperature is the product of the conversion of substance metabolism to heat energy. The body temperature of a normal person is relatively constant, and it maintains a dynamic balance of heat production and dissipation through the action of the thermoregulatory centers of the brain and hypothalamus, regulation and neurohumoral functions. Therefore, body temperature detection and monitoring are common health detection means, and particularly, real-time monitoring is needed for neonates. Furthermore, due to the particularity of the newborn, the content of the body temperature response is more, and the body temperature detection can be used for auxiliary judgment, such as jaundice detection.

Chinese national patent application No. CN201520296902.4 discloses a body temperature detection device and system. Body temperature detection device is including temperature sensor, little the control unit, the power module that is used for detecting and gathers user's body surface temperature value, little the control unit is connected with temperature sensor and power module respectively, body temperature detection device still includes acceleration sensor, acceleration sensor is connected with power module, little the control unit respectively to switch on or break off the connection between little the control unit and the power module. The utility model discloses a body temperature detection device realizes the management to body temperature detection device's power module through setting up acceleration sensor, need not to set up other electron or mechanical switch, can reduce body temperature detection device's consumption effectively to can realize body temperature detection device's intelligent management.

Chinese national patent application No. CN201620500534.5 discloses a real-time body temperature detection device for children, which comprises: the body temperature detection assembly is connected with the body temperature detection assembly and is fixed on the attaching armband at the armpit of the human body; the body temperature detection assembly comprises: the temperature layer that leads that contacts human skin connects in the temperature measurement spare that leads the temperature layer, receives the information of temperature measurement spare and converts the controller of temperature value into, the power of supply electric power, connects in control module's alarm. The utility model provides a can real time monitoring children's body temperature and preserve body temperature data record, if the body temperature reaches and sets for the clinical thermometer that the threshold value then can send the warning.

Obviously, children's clinical thermometers have more developments, but the mainstream still gives priority to single probe and single temperature detection, and especially the temperature detection process is influenced by environmental factors greatly.

SUMMERY OF THE UTILITY MODEL

The utility model provides a prior art children's clinical thermometer have more development, but the in-process that the temperature detected receives the great problem of environmental factor influence, provides a neonate's body temperature test probe.

The utility model provides a technical scheme that its technical problem adopted is: the utility model provides a neonate's body temperature test probe, includes probe casing, probe contact, thermistor RT1 and thermistor RT2, the probe casing is the cake form, the outer fringe of probe casing forms the protection turn-ups to one side arch, the protection turn-ups has the connection arch to the inboard center extension of probe casing, the cake form that also is of probe contact, thermistor RT1 and thermistor RT2 parallel fixation are in the center department at the back of probe contact, just thermistor RT1 and thermistor RT2 are along the central line symmetrical arrangement of probe contact, probe contact fills up and establishes in the probe casing, the probe contact back with fill up between the probe casing and be equipped with thermal-insulated glue film, thermal-insulated glue film is evenly scribbled and is established the back of probe contact, the line hole of crossing of a C font is seted up to one side of probe casing, the lead wires of the thermistor RT1 and the thermistor RT2 are connected with corresponding voltage division detection circuits through C-shaped wire passing holes, and the voltage division detection circuit corresponding to the thermistor RT1 is identical to the voltage division detection circuit corresponding to the thermistor RT2 in structure.

The utility model discloses in, adopted two thermistors, more specific time NTC resistance is the mode that detects along separate routes, and the circuit completion that detects along separate routes is the same, and consequently two NTC resistance forms and each other is the state that detects, through the contrast of two data, can directly go out the data that obviously exist the difference, the utility model discloses in detect the precision and reach 0.1 ℃. Utilize the utility model discloses a probe has higher detection precision, can reform transform on infant's insulation can real time monitoring equipment's basis, forms the check out test set of higher detection precision.

Preferably, the heat insulation glue layer is subjected to vacuum bubble removal, secondary sealing, high-temperature aging and stress release steps. The difference between the thermistors can be reduced through the steps of vacuum bubble removal, secondary sealing glue, high-temperature aging and stress release, so that higher detection precision is realized.

Preferably, the voltage division detection circuit for detecting correspondence between the thermistor RT1 and the thermistor RT2 comprises a resistor R1, a resistor R2, a capacitor C2, and a field effect transistor Q2, wherein a first end of the resistor R2 is connected to a power supply for supplying power to the neonatal body temperature detection probe, a second end of the resistor R2 is grounded through the capacitor C2, a second end of the resistor R2 is connected to a first end of the resistor R2, a second end of the resistor R2 is connected to a single chip microcomputer for detecting the neonatal body temperature detection probe, a second end of the resistor R2 is connected to a gate of the field effect transistor Q2, a source of the field effect transistor Q2 is connected to the first end of the resistor R2, a drain of the field effect transistor Q2 is connected to the first end of the resistor R2, a drain of the resistor R2 is connected to the first end of the resistor R2, and a drain of the resistor R2 are connected to the first end of the first, thermistor RT 1's second end and thermistor RT 2's second end are connected with the singlechip that detects neonate's body temperature test probe respectively, thermistor RT 1's second end still is connected with resistance R4 and electric capacity C3's first end, and resistance R4 and electric capacity C3's second end all grounds, thermistor RT 2's second end still is connected with resistance R6 and electric capacity C4's first end, and resistance R6 and electric capacity C4's second end all grounds, resistance R4 is the same with resistance R6's model, and electric capacity C3 is the same with electric capacity C4's model.

Preferably, the resistor R4 and the resistor R6 are voltage dividing resistors with the resistance value of 30K omega, the precision requirement of reaching 0.1 percent and the temperature drift of 25 PPM/DEG C. The utility model discloses during operation, can calculate ambient temperature through measuring resistance's mode. The resistance value of the sensor is in the range of 35-45 ℃, the resistance is changed between 19.59k omega-13.1 k omega, the resistance value is greatly changed, a voltage division circuit can be used for detecting the resistance value change of the sensor, the voltage output by the embodiment is the voltage of the stabilized voltage power supply after voltage division by a resistor RT1 and a resistor R4, and the relationship is UAN0 ═ AVCC × R4/(RT1+ R4). The voltage signal of the output end is input to an ADC for conversion, and the actual temperature can be calculated through a sensor temperature resistance meter. The temperature resistance value table of the sensor is obtained by manual calculation and then stored in the single chip microcomputer. The resistor R4 and the resistor R6 are voltage dividing resistors with the resistance value of 30K omega, the precision requirement of 0.1 percent and the temperature drift of 25 PPM/DEG C. The capacitor C3 and the capacitor C4 are both 1 microfarad capacitors. The influence of the working temperature of the equipment on the precision of the sampling circuit can be reduced by selecting the resistor with high precision and low temperature.

Preferably, the lead wires of the thermistor RT1 and the thermistor RT2 penetrate through the wire passing hole in the sleeve, a pair of pie-shaped anti-skidding clamping discs are arranged at the positions of the sleeve corresponding to the wire passing hole, and the diameter of each anti-skidding clamping disc is smaller than the height of the probe shell.

The utility model discloses a substantive effect is: the utility model discloses in, adopted two thermistors, more specific time NTC resistance is the mode that detects along separate routes, and the circuit completion that detects along separate routes is the same, and consequently two NTC resistance forms and each other is the state that detects, through the contrast of two data, can directly go out the data that obviously exist the difference, the utility model discloses in detect the precision and reach 0.1 ℃. Utilize the utility model discloses a probe has higher detection precision, can reform transform on infant's insulation can real time monitoring equipment's basis, forms the check out test set of higher detection precision.

Drawings

Fig. 1 is a line drawing of an overall structure of the present invention;

FIG. 2 is a schematic structural view of the present invention;

fig. 3 is a schematic circuit diagram of the present invention;

in the figure: 1. the probe comprises a probe shell, 2, a probe contact body, 3, a heat insulation glue layer, 4, a sleeve, 5, an anti-skid clamping disc, 6 and a wire passing hole.

Detailed Description

The technical solution of the present embodiment is further specifically described below by way of specific examples.

Example 1:

the utility model provides a neonate's body temperature test probe (see attached figure 1, attached figure 2 and attached figure 3), includes probe casing 1, probe contact 2, thermistor RT1 and thermistor RT2, the probe casing is the cake form, the outer fringe of probe casing is to the protruding protection turn-ups that forms in one side, the protection turn-ups has the connection arch to the inboard center extension of probe casing, the probe contact also is the cake form, thermistor RT1 and thermistor RT2 parallel fixation are in the center department at the back of probe contact, just thermistor RT1 and thermistor RT2 are along the central line symmetrical arrangement of probe contact, probe contact fills up and is established in the probe casing, the probe contact back with fill between the probe casing and be equipped with thermal-insulated glue film 3, thermal-insulated glue film evenly scribbles and establishes the back of probe contact, the wire passing hole of a C font is seted up to one side of probe casing, the lead wires of the thermistor RT1 and the thermistor RT2 are connected with corresponding voltage division detection circuits through the C-shaped wire through holes 6, and the voltage division detection circuit corresponding to the thermistor RT1 is identical to the voltage division detection circuit corresponding to the thermistor RT2 in circuit structure. The heat insulation glue layer is subjected to vacuum bubble removal, secondary sealing, high-temperature aging and stress release steps. The difference between the thermistors can be reduced through the steps of vacuum bubble removal, secondary sealing glue, high-temperature aging and stress release, so that higher detection precision is realized.

The voltage division detection circuit used for detecting the corresponding thermistor RT1 and the thermistor RT2 comprises a resistor R1, a resistor R2, a capacitor C2 and a field effect tube Q2, wherein a first end of the resistor R2 is connected with a power supply for supplying power to the neonatal body temperature detection probe, a second end of the resistor R2 is grounded through the capacitor C2, a second end of the resistor R2 is connected with a first end of the resistor R2, a second end of the resistor R2 is connected with a single chip microcomputer for detecting the neonatal body temperature detection probe, a second end of the resistor R2 is connected with a gate of the field effect tube Q2, a source of the field effect tube Q2 is connected with the first end of the resistor R2, a drain of the field effect tube Q2 and a second end of the resistor RT2 are respectively connected with the second end of the resistor R2, thermistor RT 1's second end and thermistor RT 2's second end are connected with the singlechip that detects neonate's body temperature test probe respectively, thermistor RT 1's second end still is connected with resistance R4 and electric capacity C3's first end, and resistance R4 and electric capacity C3's second end all grounds, thermistor RT 2's second end still is connected with resistance R6 and electric capacity C4's first end, and resistance R6 and electric capacity C4's second end all grounds, resistance R4 is the same with resistance R6's model, and electric capacity C3 is the same with electric capacity C4's model. The resistor R4 and the resistor R6 are voltage dividing resistors with the resistance value of 30K omega, the precision requirement of 0.1 percent and the temperature drift of 25 PPM/DEG C. Thermistor RT1 and thermistor RT 2's wire run through in sleeve pipe 4 the line hole of crossing, the sleeve pipe corresponds the line hole position and is provided with the antiskid joint dish 5 of a pair of pie form, the diameter of antiskid joint dish is less than the height of probe casing.

In this embodiment, adopted two thermistors, more specifically time NTC resistance is along separate routes the mode that detects, and the circuit that detects along separate routes is accomplished the same, and consequently two NTC resistance forms each other and is the state that detects, through the contrast of two data, can directly go out the data that obviously exist the difference, the utility model discloses in detect the precision and reach 0.1 ℃. Utilize the utility model discloses a probe has higher detection precision, can reform transform on infant's insulation can real time monitoring equipment's basis, forms the check out test set of higher detection precision.

The above-described embodiments are only preferred embodiments of the present invention, and are not intended to limit the present invention in any way, and other variations and modifications may be made without departing from the scope of the claims.

Claims (5)

1. A neonate temperature test probe which characterized in that: including probe housing, probe contact, thermistor RT1 and thermistor RT2, the probe housing is the cake form, the outer fringe of probe housing forms the protection turn-ups to one side arch, the protection turn-ups has the connection arch to the inboard center extension of probe housing, also be the cake form of probe contact, thermistor RT1 and thermistor RT2 parallel fixation are in the center department at the back of probe contact, just thermistor RT1 and thermistor RT2 are along the central line symmetrical arrangement of probe contact, probe contact fills up and establishes in the probe housing, the probe contact back with fill out between the probe housing and be equipped with thermal-insulated glue film, thermal-insulated glue film evenly scribbles and establishes the back of probe contact, the line hole of crossing of a C font is seted up to one side of probe housing, thermistor RT1 and thermistor RT 2's wire all are connected with the partial pressure detection circuit that corresponds through the line hole of crossing of C font, the circuit structure of the voltage division detection circuit corresponding to the thermistor RT1 is the same as that of the voltage division detection circuit corresponding to the thermistor RT 2.

2. The neonatal body temperature detection probe of claim 1, wherein: the heat insulation glue layer is subjected to vacuum bubble removal, secondary sealing, high-temperature aging and stress release steps.

3. The neonatal body temperature detection probe of claim 2, wherein: the voltage division detection circuit used for detecting the corresponding thermistor RT1 and the thermistor RT2 comprises a resistor R1, a resistor R2, a capacitor C2 and a field effect tube Q2, wherein a first end of the resistor R2 is connected with a power supply for supplying power to the neonatal body temperature detection probe, a second end of the resistor R2 is grounded through the capacitor C2, a second end of the resistor R2 is connected with a first end of the resistor R2, a second end of the resistor R2 is connected with a single chip microcomputer for detecting the neonatal body temperature detection probe, a second end of the resistor R2 is connected with a gate of the field effect tube Q2, a source of the field effect tube Q2 is connected with the first end of the resistor R2, a drain of the field effect tube Q2 and a second end of the resistor RT2 are respectively connected with the second end of the resistor R2, thermistor RT 1's second end and thermistor RT 2's second end are connected with the singlechip that detects neonate's body temperature test probe respectively, thermistor RT 1's second end still is connected with resistance R4 and electric capacity C3's first end, and resistance R4 and electric capacity C3's second end all grounds, thermistor RT 2's second end still is connected with resistance R6 and electric capacity C4's first end, and resistance R6 and electric capacity C4's second end all grounds, resistance R4 is the same with resistance R6's model, and electric capacity C3 is the same with electric capacity C4's model.

4. The neonatal body temperature detection probe of claim 3, wherein: the resistor R4 and the resistor R6 are voltage dividing resistors with the resistance value of 30K omega, the precision requirement of 0.1 percent and the temperature drift of 25 PPM/DEG C.

5. The neonatal body temperature detection probe of claim 1, 2 or 3, wherein: thermistor RT1 and thermistor RT 2's wire run through in the sleeve pipe the line hole of crossing, the sleeve pipe corresponds the anti-skidding joint dish that the line hole position was provided with a pair of pie, the diameter of anti-skidding joint dish is less than the height of probe casing.

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