CN215272717U - Wearable dynamic percutaneous jaundice measuring instrument - Google Patents
Wearable dynamic percutaneous jaundice measuring instrument Download PDFInfo
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- CN215272717U CN215272717U CN202121021931.1U CN202121021931U CN215272717U CN 215272717 U CN215272717 U CN 215272717U CN 202121021931 U CN202121021931 U CN 202121021931U CN 215272717 U CN215272717 U CN 215272717U
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Abstract
The utility model provides a wearable developments percutaneous jaundice measuring apparatu, it includes percutaneous jaundice probe and control panel, percutaneous jaundice probe includes blue and green double-colored LED light source, photodiode, the control panel includes host system, power module, pressure detection module, position detection module are connected with the host system electricity, the host system passes through LED drive circuit and is connected with blue and green double-colored LED light source electricity, photodiode passes through signal amplification filter circuit and is connected with the host system electricity, pressure detection module is connected with pressure sensor. The technical scheme of the utility model adopt blue-green double-colored LED as the light source, and percutaneous jaundice probe structure is simplified in the design of multiple window for equipment can be miniaturized and wearable, has multifunctionality such as pressure detection, position detection moreover.
Description
Technical Field
The utility model relates to a wearable developments percutaneous jaundice measuring apparatu.
Background
The percutaneous jaundice instrument is used as the most common measuring equipment for evaluating the neonatal jaundice level, and has the outstanding advantages of convenience, simplicity, no wound and the like. The traditional percutaneous jaundice meter adopts a xenon lamp as a detection light source, a complex light path system needs to be matched, a complex driving circuit is also needed, and the product technology exists for nearly thirty years.
The existing light emission receiving loop system using a xenon lamp as a light source has the following defects:
1. the xenon lamp driving circuit is complex and has high energy consumption;
2. the structure of the light path is complex, and the integrated light emitting, receiving and filtering structure leads the structure of the light path to be complex, the volume to be large and the cost to be high;
3. the equipment is large in size, difficult to miniaturize and single in function.
SUMMERY OF THE UTILITY MODEL
To the technical problem, the utility model discloses a wearable developments percutaneous jaundice measuring apparatu, it is small, light energy-conserving, waterproof is suitable for to wear at neonate's health, can detect multi-functional such as body temperature, position moreover, carries out developments percutaneous jaundice and measures.
To this end, the technical scheme of the utility model is that:
the utility model provides a wearable developments percutaneous jaundice measuring apparatu, its includes percutaneous jaundice probe and control panel, percutaneous jaundice probe includes blue and green double-colored LED light source, photodiode, the control panel includes host system, power module, pressure detection module, position detection module are connected with the host system electricity, the host system passes through LED drive circuit and is connected with blue and green double-colored LED light source electricity, photodiode passes through signal amplification filter circuit and is connected with the host system electricity, pressure detection module is connected with pressure sensor.
As a further improvement, the wearable dynamic percutaneous jaundice measuring instrument includes temperature sensor, temperature sensor's one end is located percutaneous jaundice probe, temperature sensor passes through the temperature detection circuit and is connected with the host system electricity.
As a further improvement of the present invention, the temperature sensor is an NTC temperature sensor.
As a further improvement, the percutaneous jaundice probe includes receiving window and emission window, the receiving window is located the middle part of percutaneous jaundice probe, the emission window is located the outside of receiving window, photodiode is located the receiving window, blue-green double-colored LED light source is located the emission window.
As a further improvement of the utility model, the percutaneous jaundice probe is circular or square.
As a further improvement of the present invention, the number of the emission windows is at least two.
As a further improvement of the utility model, host system includes main control chip, main control chip is ARM kernel microcontroller.
As the utility model discloses a further improvement, main control chip integration has bluetooth BLE protocol stack kernel, built-in real time clock, Flash memory, high accuracy 12bit ADC, 12bit DAC module.
As a further improvement of the utility model, the model of the ARM core microcontroller is N32WB452 or NRF 51822.
As a further improvement of the present invention, the posture detecting module includes a three-axis acceleration sensor U5.
As a further improvement of the utility model, three-axis acceleration sensor U5's VDD end is connected with power module's 3.3V power end, three-axis acceleration sensor U5's GNDIO end, GND end ground connection, three-axis acceleration sensor U5's SENB end is connected with the VDD end, and the VDD end is through electric capacity C24, C25 ground connection respectively, three-axis acceleration sensor U5's AD0 end, RESV1 end ground connection, VDDIO end are through electric capacity C25 ground connection to be connected with 3.3V power end electricity, three-axis acceleration sensor U5's SCX end, SDX end are connected with the main control chip electricity, three-axis acceleration sensor U5's INT1 end, INT2 end are connected with the main control chip electricity through resistance R41, resistance R42 respectively.
As a further improvement of the present invention, the model of the three-axis acceleration sensor U5 is QMA 7981.
As a further improvement of the present invention, the pressure detection module includes an operational amplifier U1A, the 1 end of the pressure sensor is electrically connected to the inverting input end of the operational amplifier U1A, and is electrically connected to the output end of the operational amplifier U1A through a capacitor C7, the 2 end of the pressure sensor is grounded, and is connected to the 1 end through a resistor R14, the non-inverting input end of the operational amplifier U1A is electrically connected to the VCC _30 end through a resistor R15, and the non-inverting input end of the operational amplifier U1A is grounded through a resistor R16 and a capacitor C10, respectively; the GND end of the operational amplifier U1A is grounded, the VCC end of the operational amplifier U1A is grounded through a capacitor C8, and the output end of the operational amplifier U1A is electrically connected with a main control chip.
As a further improvement, the power module includes battery, power management chip and charge control circuit, the battery is connected with the main control chip electricity through power management chip, charge control circuit respectively.
As a further improvement, wearable developments percutaneous jaundice measuring apparatu includes square or cylindrical casing, touch button and pilot lamp, touch button, pilot lamp are connected with main control chip, touch button, pilot lamp are established on the casing one on the surface, percutaneous jaundice probe is located another on the surface, the side of square casing is equipped with the contact that charges, the contact that charges is connected with power module.
As a further improvement, the wearable dynamic percutaneous jaundice measuring instrument includes a fixing member connected to the housing, the fixing member is a fixing film, a binding band or a binding band cap, and the fixing film is located at the outer edge of the housing.
Compared with the prior art, the beneficial effects of the utility model are that:
first, the technical scheme of the utility model adopt blue-green double-colored LED as the light source, and percutaneous jaundice probe structure is simplified in the design of multiple windows for equipment can be miniaturized and wearable, has multifunctionality such as pressure detection, position detection, temperature detect moreover.
Secondly, according to the technical scheme of the invention, a pressure detection function is added, the comfort level of the neonate in wearing and use can be improved by proper pressure, the injury to the neonate caused by over-tightening in wearing is reduced, the device can be worn reliably and cannot be displaced or slipped easily, the accuracy of percutaneous jaundice measurement can be improved by stable and good contact with the skin, and in addition, the reliability of data can be improved by monitoring the pressure change and recording. The temperature detection function is added, the body temperature can be fed back, the temperature correction of the sensor can be realized, the accuracy of percutaneous jaundice measurement can be improved, and the body temperature data of a newborn can be acquired. The body position detection function is added, the pressure detection value can be corrected, and the accuracy of percutaneous jaundice measurement is improved. Adopt the technical scheme of the utility model, can acquire neonate's percutaneous jaundice value, rhythm of the heart, the multiple parameter dynamic monitoring data of body temperature, help more timely accurate diagnosis neonate state to and be used for the medical science research to the neonate.
Drawings
Fig. 1 is a functional block diagram of a wearable dynamic percutaneous jaundice measurement apparatus according to embodiment 1 of the present invention.
Fig. 2 is a schematic view of a percutaneous jaundice probe according to embodiment 1 of the present invention.
Fig. 3 is a circuit diagram of the main control chip according to embodiment 1 of the present invention.
Fig. 4 is a circuit diagram of a charge control circuit according to embodiment 1 of the present invention.
Fig. 5 is a circuit diagram of a signal amplification filter circuit according to embodiment 1 of the present invention.
Fig. 6 is a circuit diagram of a triaxial acceleration sensor according to embodiment 1 of the present invention.
Fig. 7 is a circuit diagram of a pressure detection module according to embodiment 1 of the present invention.
Fig. 8 is a circuit diagram of the temperature detection module according to embodiment 1 of the present invention.
Fig. 9 is a schematic structural view of a housing according to embodiment 1 of the present invention.
Fig. 10 is a schematic structural diagram of a percutaneous jaundice probe according to embodiment 2 of the present invention.
Fig. 11 is a schematic structural diagram of a percutaneous jaundice probe in embodiment 3 of the present invention.
The reference numerals include:
the device comprises a shell, a percutaneous jaundice probe, a transmitting window, a receiving window, a touch button, a charging contact and an indicator light, wherein the shell is 1, the percutaneous jaundice probe is 2, the transmitting window is 3, the receiving window is 4, the touch button is 5, and the charging contact is 6.
Detailed Description
Preferred embodiments of the present invention will be described in further detail with reference to the accompanying drawings.
Example 1
As shown in fig. 1 to 9, a wearable dynamic percutaneous jaundice meter includes a square or cylindrical housing 1, in which a percutaneous jaundice probe 2, a control panel, a touch button, and an indicator are disposed. Percutaneous jaundice probe includes blue-green double-colored LED light source, photodiode, the control panel includes host system, power module, pressure detection module, position detection module, temperature sensor, power module, pressure detection module, position detection module are connected with the host system electricity, host system passes through LED drive circuit and is connected with blue-green double-colored LED light source electricity, photodiode passes through signal amplification filter circuit and is connected with the host system electricity, pressure detection module is connected with pressure sensor. One end of the temperature sensor is positioned on the percutaneous jaundice probe, and the temperature sensor is electrically connected with the main control module through a temperature detection circuit.
As shown in fig. 2, the percutaneous jaundice probe 2 includes a receiving window 4 and an emitting window 3, the receiving window 4 is located in the middle of the percutaneous jaundice probe 2, the emitting window 3 is located outside the receiving window 4, the photodiode is located in the receiving window 4, and the blue-green two-color LED light source is located in the emitting window 3. The percutaneous jaundice probe 2 is round or square. The number of emission windows 3 is at least two. In this embodiment, the number of the emission windows 3 is two.
The main control module comprises a main control chip, and the main control chip is an ARM kernel microcontroller. The main control chip is integrated with a Bluetooth BLE protocol stack inner core, a built-in real time clock, a Flash memory, a high-precision 12-bit ADC module and a 12-bit DAC module. Integrated bluetooth BLE uses PCB antenna or patch antenna in the master control chip, has small, advantage with low costs, and BLE connects convenience, low power dissipation, peripheral circuit are simple simultaneously, and specially adapted requires highly to the low-power consumption, and the wearing formula equipment that the communication data volume is little. The built-in Flash can be used for storing a small amount of data and configuration information; the real-time clock provides a timing function and can be synchronized with the intelligent equipment. Preferably, the model of the ARM core microcontroller is N32WB452 or NRF 51822. The circuit diagram of the main control chip is shown in fig. 3.
And an LED circuit, a signal amplification filter circuit, a touch key, a pressure detection circuit, a body temperature detection circuit, a position detection circuit and a charging control and power supply management circuit are arranged on the periphery of the master control. The charge control circuit is shown in fig. 4, and the signal amplification filter circuit is shown in fig. 5.
As shown in fig. 6, the posture detection module includes a three-axis acceleration sensor U5. The VDD end of the triaxial acceleration sensor U5 is connected with a 3.3V power supply end of a power supply module, the GNDIO end and the GND end of the triaxial acceleration sensor U5 are grounded, the SENB end of the triaxial acceleration sensor U5 is connected with the VDD end, the VDD end is grounded through capacitors C24 and C25, the AD0 end and the RESV1 end of the triaxial acceleration sensor U5 are grounded, the VDDIO end is grounded through a capacitor C25 and is electrically connected with the 3.3V power supply end, the SCX end and the SDX end of the triaxial acceleration sensor U5 are electrically connected with a main control chip, and the INT1 end and the INT2 end of the triaxial acceleration sensor U5 are electrically connected with the main control chip through a resistor R41 and a resistor R42. The model of the triaxial acceleration sensor U5 is QMA7981 or MMA8452, and the motion state and the body position information can be obtained by reading 3 parameters of the sensor and performing calculation processing.
The pressure sensor is a flexible film sensor with the resistance value reduced along with the increase of pressure acting on an induction area, and the pressure sensor is used for sampling a pressure data value after passing through a pressure-voltage conversion circuit, wherein the resistance type pressure-sensitive sensor is used for example, RP-C10-LT, the thickness is 0.4mm, and the pressure detection range is 20 g-2 kg.
As shown in fig. 7, the pressure detection module includes an operational amplifier U1A, a 1 terminal of the pressure sensor is electrically connected to an inverting input terminal of the operational amplifier U1A and is electrically connected to an output terminal of the operational amplifier U1A through a capacitor C7, a 2 terminal of the pressure sensor is grounded and is connected to the 1 terminal through a resistor R14, a non-inverting input terminal of the operational amplifier U1A is electrically connected to a VCC _30 terminal through a resistor R15, and a non-inverting input terminal of the operational amplifier U1A is grounded through a resistor R16 and a capacitor C10, respectively; the GND end of the operational amplifier U1A is grounded, the VCC end of the operational amplifier U1A is grounded through a capacitor C8, and the output end of the operational amplifier U1A is electrically connected with a main control chip.
The temperature sensor is an NTC temperature sensor. And a Wheatstone bridge is used to obtain the difference signal, and the difference signal is subjected to AD sampling and calculation after amplification and filtering, so that an accurate temperature value can be obtained. The circuit diagram of the temperature detection module is shown in fig. 8.
The power module comprises a battery, a power management chip and a charging control circuit, wherein the battery is electrically connected with the main control chip through the power management chip and the charging control circuit respectively. Furthermore, adopt a small size lithium cell as the power, the capacity is 80mAh, satisfies the longest 15 days's of single work demand, and cooperation charge control and power management circuit have charge-discharge electricity protect function, and the interface that charges adopts magnetism to inhale formula or contact formula, can realize that the complete machine is waterproof.
The touch key and the indicator light are connected with the main control chip. As shown in fig. 9, the touch key 5 and the indicator light 7 are disposed on one surface of the housing 1, the percutaneous jaundice probe 2 is disposed on the other surface, the charging contact 6 is disposed on the side surface of the housing 1, and the charging contact 6 is connected with the power module. Further preferably, the indicator light 7 is an LED integrated with red, green and blue colors, and can display various colors for indicating the working state of the equipment and prompting and warning. The touch key 5 and the indicating lamp are used for man-machine interaction, the indicating lamp can indicate the working state of the equipment and can also prompt early warning, and the touch key is used for awakening the equipment to exit from a sleep mode.
The wearable dynamic percutaneous jaundice measuring instrument comprises a fixing component connected with the shell, the fixing component is a fixing film, a binding band or a binding band cap, and the fixing film is located on the outer edge of the shell. The fixed film is formed by growing wings or skirt edges on the outer edge of the shell, and the skirt edges are covered with colloid and attached to the surface of the skin. The medical bandage or bandage cap is adopted for fixation, and can be tied at the head, the limbs, the chest and other positions.
By adopting the technical scheme of the embodiment, the main control chip controls the blue, green and blue-green double-color LED light source to emit light by the blue and green LEDs, the light reaches the light receiving sensor after being reflected by skin, then is converted into an electric signal, is amplified and filtered to be sampled, and calculates and processes the acquired data to obtain a percutaneous jaundice value, and finally stores and records the percutaneous jaundice value; the reflected light signals are continuously sampled by the light receiving sensor, and the change period of the signals, namely the heartbeat period, can be obtained through calculation processing, so that the heart rate value can be calculated. The position detection uses a 3-axis acceleration sensor such as MMA8452, and the motion state and body position information can be obtained by reading 3 parameters of the sensor and performing calculation processing. Come the monitoring through the pressure detection module and wear the pressure state between system and the skin, suitable pressure can improve the neonate and wear the comfort level, reduces because of wearing the injury of tension to the neonate, reduces because of wearing the pine and make equipment in use take place to shift and the slippage, also is favorable to improving percutaneous jaundice measuring degree of accuracy simultaneously, can also improve measured data's reliability through carrying out pressure monitoring at the dynamic measurement overall process. The temperature sensor dynamically monitors the temperature of the contact position of the probe and the skin and the ambient temperature at the same time, can be used for carrying out temperature correction on the light receiving sensor, is beneficial to improving the accuracy of percutaneous jaundice measurement, and can also obtain the body temperature of a newborn through calculation processing to generate a body temperature data curve. The position detection can further correct the pressure detection by monitoring the position change of the newborn baby, and is favorable for improving the accuracy of percutaneous jaundice measurement. The touch key and the state indicating lamp are used for man-machine interaction, the indicating lamp can indicate the working state of the equipment and can also prompt early warning, and the touch key is used for awakening the equipment to exit from a sleep mode.
Example 2
On the basis of embodiment 1, as shown in fig. 10, the percutaneous jaundice probe 2 is circular, and includes a receiving window 3 and four transmitting windows 3, the receiving window 4 is located at the center of the percutaneous jaundice probe 2, and the transmitting windows 3 are located around the receiving window 4.
Example 3
On the basis of embodiment 1, as shown in fig. 11, the percutaneous jaundice probe 2 is square, and includes a receiving window 3 and four transmitting windows 4, where the receiving window 4 is located at the center of the percutaneous jaundice probe 2, and the transmitting windows 3 are located around the receiving window 4.
The above-mentioned embodiments are the preferred embodiments of the present invention, and the scope of the present invention is not limited to the above-mentioned embodiments, and the scope of the present invention includes and is not limited to the above-mentioned embodiments, and all equivalent changes made according to the shape and structure of the present invention are within the protection scope of the present invention.
Claims (10)
1. A wearable developments percutaneous jaundice measuring apparatu which characterized in that: which comprises a percutaneous jaundice probe and a control panel,
percutaneous jaundice probe includes blue-green double-colored LED light source, photodiode, the control panel includes host system, power module, pressure detection module, position detection module are connected with the host system electricity, host system passes through LED drive circuit and is connected with blue-green double-colored LED light source electricity, photodiode passes through signal amplification filter circuit and is connected with the host system electricity, pressure detection module is connected with pressure sensor.
2. The wearable dynamic percutaneous jaundice meter of claim 1, wherein: it includes temperature sensor, temperature sensor's one end is located percutaneous jaundice probe, temperature sensor passes through temperature detection circuit and is connected with the host system electricity.
3. The wearable dynamic percutaneous jaundice meter of claim 2, wherein: the temperature sensor is an NTC temperature sensor.
4. The wearable dynamic percutaneous jaundice meter of claim 1, wherein: the percutaneous jaundice probe comprises a receiving window and an emitting window, the receiving window is located in the middle of the percutaneous jaundice probe, the emitting window is located in the outer side of the receiving window, the photodiode is located in the receiving window, and the blue-green double-color LED light source is located in the emitting window.
5. The wearable dynamic percutaneous jaundice meter of any one of claims 1-4, wherein: the main control module comprises a main control chip, and the main control chip is an ARM kernel microcontroller.
6. The wearable dynamic percutaneous jaundice meter of claim 5, wherein: the body position detection module comprises a three-axis acceleration sensor U5;
the VDD end of the three-axis acceleration sensor U5 is connected with the 3.3V power supply end of the power supply module, the GNDIO end and the GND end of the three-axis acceleration sensor U5 are grounded, the SENB end of the three-axis acceleration sensor U5 is connected with the VDD end, the VDD end is grounded through capacitors C24 and C25, the AD0 end and the RESV1 end of the three-axis acceleration sensor U5 are grounded, the VDDIO end is grounded through a capacitor C25 and is electrically connected with the 3.3V power supply end,
the SCX end and the SDX end of the three-axis acceleration sensor U5 are electrically connected with the main control chip, and the INT1 end and the INT2 end of the three-axis acceleration sensor U5 are electrically connected with the main control chip through a resistor R41 and a resistor R42 respectively.
7. The wearable dynamic percutaneous jaundice meter of claim 6, wherein: the pressure detection module comprises an operational amplifier U1A, wherein the 1 end of the pressure sensor is electrically connected with the inverting input end of the operational amplifier U1A and is electrically connected with the output end of the operational amplifier U1A through a capacitor C7, the 2 end of the pressure sensor is grounded and is connected with the 1 end through a resistor R14, the non-inverting input end of the operational amplifier U1A is electrically connected with the VCC _30 end through a resistor R15, and the non-inverting input end of the operational amplifier U1A is grounded through a resistor R16 and a capacitor C10 respectively; the GND end of the operational amplifier U1A is grounded, the VCC end of the operational amplifier U1A is grounded through a capacitor C8, and the output end of the operational amplifier U1A is electrically connected with a main control chip.
8. The wearable dynamic percutaneous jaundice meter of claim 7, wherein: the power module comprises a battery, a power management chip and a charging control circuit, wherein the battery is electrically connected with the main control chip through the power management chip and the charging control circuit respectively.
9. The wearable dynamic percutaneous jaundice meter of claim 6, wherein: it includes square or cylindrical casing, touch button and pilot lamp, touch button, pilot lamp are connected with main control chip, touch button, pilot lamp are established on the surface of casing, percutaneous jaundice probe is located another on the surface, the side of square casing is equipped with the contact that charges, the contact that charges is connected with power module.
10. The wearable dynamic percutaneous jaundice meter of claim 9, wherein: the fixing component is a fixing film, a binding band or a binding band cap, and the fixing film is positioned at the outer edge of the shell.
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| CN202121021931.1U CN215272717U (en) | 2021-05-13 | 2021-05-13 | Wearable dynamic percutaneous jaundice measuring instrument |
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| CN202121021931.1U CN215272717U (en) | 2021-05-13 | 2021-05-13 | Wearable dynamic percutaneous jaundice measuring instrument |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114259229A (en) * | 2021-12-28 | 2022-04-01 | 深圳市比特原子科技有限公司 | Multi-parameter vital sign monitoring device and method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114259229A (en) * | 2021-12-28 | 2022-04-01 | 深圳市比特原子科技有限公司 | Multi-parameter vital sign monitoring device and method |
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