Utility model content
Main purpose of the present utility model is detection safety and the comprehensive technical problem not solving fetus sign information in prior art.
For achieving the above object, this utility model provides a kind of wearable vital sign monitor, described wearable vital sign monitor comprises to be dressed body and is arranged at pull sensing module on described wearing body, thin film pulsation sensing module, microprocessor, key-press module and display module, and pulse with described pull sensing module, thin film respectively sensing module, key-press module and display module of described microprocessor is electrically connected;
Described pull sensing module is for detecting the pressure signal between described wearing body and anemia of pregnant woman, and described pressure signal is converted to the treatable digital signal of described microprocessor, described Fetal Heart Rate, fetal movement rate and fetal movement intensity for detecting the Fetal Heart Rate of fetus, fetal movement rate and fetal movement intensity, and are converted to the treatable digital signal of described microprocessor by described thin film pulsation sensing module respectively.
Preferably, described pull sensing module comprises the pulling force sensor, the first wave filter and the first analog to digital conversion circuit that are electrically connected successively, described thin film pulsation sensing module comprises the thin film fluctuation sensor, the second wave filter and the second analog to digital conversion circuit that are electrically connected successively, and the outfan of described first analog to digital conversion circuit and the second analog to digital conversion circuit is electrically connected with the input of described microprocessor respectively.
Preferably, described pull sensing module also comprises the first differential amplifier circuit, and described first differential amplifier circuit is electrically connected between described first analog to digital conversion circuit and described first wave filter; Described thin film pulsation sensing module also comprises the second differential amplifier circuit, and described second differential amplifier circuit is electrically connected between described second analog to digital conversion circuit and described second wave filter.
Preferably, described wearable vital sign monitor also comprises wireless connections module, for being connected with terminal wireless, and the Fetal Heart Rate after microprocessor processes, fetal movement rate and fetal movement intensity are sent to described terminal, to be sent to Telemedicine System by described terminal.
Preferably, described wearable vital sign monitor also comprises reminding module, and described reminding module is electrically connected with described microprocessor, points out accordingly for the scope residing for the pressure signal after microprocessor processes.
Preferably, described thin film fluctuation sensor is active thin film fluctuation sensor, and it comprises a power circuit, and the supply voltage ripple of described power circuit is less than 50 millivolts.
Preferably, described power circuit is secondary mu balanced circuit or three grades of mu balanced circuits.
Preferably, described wearing body is textile.
A kind of wearable vital sign monitor of this utility model, the pressure signal dressed between body and anemia of pregnant woman is detected by pull sensing module, thin film pulsation sensing module detects the Fetal Heart Rate of fetus, fetal movement rate and fetal movement intensity, Fetal Heart Rate, microprocessor is to the Fetal Heart Rate after pressure signal and process, after fetal movement rate and the process of fetal movement intensity, can be shown on display module, and pass through key-press module, user can carry out input instruction, check the operations such as display information, the force value of dressing between body and anemia of pregnant woman can be checked by display module, and the Fetal Heart Rate of fetus, fetal movement rate and fetal movement intensity.Vital sign monitor of the present invention, is worn on the sign information that namely anemia of pregnant woman can detect fetus with it at home, is not needed special society's health and hospital, safe ready.In addition, the sign information of fetus is detected by thin film pulsation sensing module, compared to the fetus tester of traditional ultrasonic doppler, because it does not need the ultrasound wave launching certain amplitude, radiation reduces greatly, safer, and the Fetal Heart Rate of fetus, fetal movement rate and fetal movement intensity can be detected simultaneously, obtain more comprehensive sign information, conveniently overall estimation is carried out to the vital sign of fetus.
Detailed description of the invention
Should be appreciated that specific embodiment described herein only in order to explain this utility model, and be not used in restriction this utility model.
This utility model provides a kind of wearable vital sign monitor, the invention provides a kind of wearable vital sign monitor, with reference to Fig. 1 and Fig. 2, in one embodiment, this wearable vital sign monitor comprises: dress body 01 and be arranged at the pull sensing module 10 of dressing on body 01, thin film pulsation sensing module 20, microprocessor 50, key-press module 60 and display module 70.The vital sign monitor of the present embodiment is worn on anemia of pregnant woman with it near the position of fetus by dressing body 01, and can regulate the tightness of wearing by dressing body 01, when tightness is suitable, can detect the sign information of fetus.
Preferably, dressing body 01 is textile.
For greater safety, the sign information of fetus is detected exactly, wearing body 01 is provided with a pull sensing module 10, pressure signal for detecting the pressure signal dressed between body 01 and anemia of pregnant woman, and is converted to the treatable digital signal of microprocessor 50 by pull sensing module 10.If vital sign monitor dresses tension, easily injure fetus, cross the sign information that pine then can not detect fetus exactly.When only having the pressure between vital sign monitor and anemia of pregnant woman suitable, just by thin film pulsation sensing module 20 safety, the sign information detecting fetus exactly.
Thin film pulsation sensing module 20 comprises thin film fluctuation sensor, thin film fluctuation sensor is a kind of dynamic strain formula sensor, to the detection of Dynamic Signal, there is larger susceptiveness, for 3-5 times of usual pressure sensor, be applicable to the life signal be applied to human skin or inside of human body to detect, especially to the detection of the signals such as breath signal, heart rate signal and pulsation.In the present embodiment, the output sensitivity of thin film fluctuation sensor is not less than 2 microvolts, and temperature coefficient is less than 500PPM.Thin film fluctuation sensor is for detecting the Fetal Heart Rate of fetus, fetal movement rate and fetal movement intensity, be the corresponding signal of telecommunication by Fetal Heart Rate, fetal movement rate and fetal movement intensity-conversion, then by wave filter, D/A converting circuit, the Fetal Heart Rate collected by thin film fluctuation sensor, fetal movement rate and fetal movement intensity be converted to the treatable digital signal of microprocessor 50 respectively.Wherein, thin film fluctuation sensor does not need to launch the sign information that namely ultrasound wave can detect fetus.
The vital sign monitor of the present embodiment, the pressure signal dressed between body and anemia of pregnant woman is detected by pull sensing module, thin film fluctuation sensor detects the Fetal Heart Rate of fetus, fetal movement rate and fetal movement intensity, Fetal Heart Rate, fetal movement rate and fetal movement intensity send to microprocessor after treatment, microprocessor is to this pressure signal and Fetal Heart Rate, after fetal movement rate and the process of fetal movement intensity, can be shown on display module, and pass through key-press module, user can carry out input instruction, Fetal Heart Rate is checked in selection, the operations such as fetal movement rate and fetal movement intensity, the force value of dressing between body and anemia of pregnant woman can be shown by display module, and the Fetal Heart Rate of fetus, fetal movement rate and fetal movement intensity.
The vital sign monitor of the present embodiment, is worn on the sign information that namely anemia of pregnant woman can detect fetus with it at home, is not needed special society's health and hospital, safe ready.
In addition, the sign information of fetus is detected by thin film pulsation sensing module, compared to the fetal rhythm tester of traditional ultrasonic doppler, because it does not need the ultrasound wave launching certain amplitude, radiation reduces greatly, safer, and the Fetal Heart Rate of fetus, fetal movement rate and fetal movement intensity can be detected simultaneously, obtain more comprehensive sign information, conveniently total evaluation is carried out to the vital sign of fetus.
In a preferred embodiment, as shown in Figure 3, on the basis of the embodiment of above-mentioned Fig. 1, pull sensing module 10 comprises pulling force sensor 101, first wave filter 102 and the first analog to digital conversion circuit 103 that are electrically connected successively, the outfan that thin film pulsation sensing module 20 comprises thin film fluctuation sensor 201, second wave filter 202 and the second analog to digital conversion circuit 203, first analog to digital conversion circuit 103 and the second analog to digital conversion circuit 203 be electrically connected successively is electrically connected with the input of microprocessor 50 respectively.
Wherein, thin film fluctuation sensor 201 is multiple, and after anemia of pregnant woman dresses vital sign monitor, thin film fluctuation sensor 201 is close on anemia of pregnant woman's belly.
Wherein, the input of the first wave filter 102 is electrically connected with pulling force sensor 101, for pressure signal is carried out filtering; The input of the second wave filter 202 with and thin film fluctuation sensor 201 be electrically connected, for the signal of telecommunication corresponding to Fetal Heart Rate, fetal movement rate and fetal movement intensity is carried out filtering, filtering interfering and noise signal are to improve signal to noise ratio.
The input of the first analog to digital conversion circuit 103 is electrically connected with the outfan of the first wave filter 102, for the analog electrical signal corresponding through filtered pressure signal is converted to digital signal respectively; The input of the second analog to digital conversion circuit 203 is electrically connected with the outfan of the second wave filter 202, for filtered Fetal Heart Rate, fetal movement rate and fetal movement intensity being converted to respectively corresponding digital signal.
The outfan of microprocessor 50 and the first analog to digital conversion circuit 103, the outfan of the second analog to digital conversion circuit 203, key-press module 60 and display module 70 are electrically connected.
In the present embodiment, filtering and the analog-digital conversion function of the first wave filter 102, first analog to digital conversion circuit 103, second wave filter 202 and the second analog to digital conversion circuit 203 correspondence are same as the prior art, repeat no more herein.
In a preferred embodiment, as shown in Figure 4, on the basis of the embodiment of above-mentioned Fig. 3, described wearable vital sign monitor also comprises wireless connections module 80, for being connected with terminal wireless, and Fetal Heart Rate, fetal movement rate and the fetal movement intensity after processing through microprocessor 50 is sent to terminal, to be sent to Telemedicine System by terminal.
In the present embodiment, wireless connections module 80 can be bluetooth module or infrared module, and vital sign monitor sets up wireless connections by wireless connections module 80 and outside terminal, and terminal can be mobile phone, computer or other smart machines etc.
As shown in Figure 5, wireless connections module 80 is made up of communication chip SP3232 and relevant 0.1UF/36V capacity cell.Wherein, USART RX and USART TX are the interfaces be connected with microprocessor 50, and OUT RX and OUT TX is the interface with the terminal communication of outside.
Fetal Heart Rate, fetal movement rate and fetal movement intensity after processing through microprocessor 50 is sent to terminal by wireless connections module 80 by vital sign monitor, then Telemedicine System is sent it to by terminal, information or the nutrition recommendation informations etc. such as the health check-up date that Telemedicine System can be correlated with according to Fetal Heart Rate, fetal movement rate and fetal movement intensity feedback, further, anemia of pregnant woman can also carry out communication by terminal and doctor.
In a preferred embodiment, as shown in Figure 4, pull sensing module 10 also comprises the first differential amplifier circuit 104, first differential amplifier circuit 104 and is electrically connected between the first analog to digital conversion circuit 103 and the first wave filter 102; Thin film pulsation sensing module 20 also comprises the second differential amplifier circuit 204, second differential amplifier circuit 204 and is electrically connected between the second analog to digital conversion circuit 203 and the second wave filter 202.
In the present embodiment, consider that Fetal Heart Rate signal may be more small and weak, signal can be amplified by differential amplifier circuit, and then improve the sensitivity of vital sign monitor.
In conjunction with consulting Fig. 6, first wave filter 102 receives the pressure signal of pulling force sensor 101 output by the first passage of AINP1 and AINN1 two port compositions, filter network through being made up of R11, R15, C13, C15, C19 carries out filtering, filtered pressure signal is after the first differential amplifier circuit 104 amplifies, pressure signal after amplification is converted to microprocessor 50 through the first analog to digital conversion circuit 103 can identify, analyze and the digital signal processed, exports microprocessor 50 to finally by DOUT port.
Fetal Heart Rate, fetal movement rate and fetal movement strength signal that second wave filter 202 is exported by the second channel reception thin film fluctuation sensor 201 of AINP2 and AINN2 two port compositions, filter network through being made up of R10, R14, C12, C14, C18 carries out filtering, filtered Fetal Heart Rate, fetal movement rate and fetal movement strength signal are after the second differential amplifier circuit 204 amplifies, signal after amplification is converted to microprocessor 50 through the second analog to digital conversion circuit 203 can identify, analyze and the digital signal processed, exports microprocessor 50 to finally by DOUT port.
In the present embodiment, the first differential amplifier circuit 104, second differential amplifier circuit 204, first analog to digital conversion circuit 103 and the second analog to digital conversion circuit 203 are realized by chip ADS1232.
Wherein, A0 is the control end of microprocessor 50, and it is that first passage exports or second channel exports that microprocessor 50 carrys out control output end DOUT by control A0.
In a preferred embodiment, as shown in Figure 4, wearable vital sign monitor also comprises reminding module 100, and reminding module 100 is electrically connected with microprocessor 50, points out accordingly for the scope residing for the pressure signal after microprocessor 50 process.
In the present embodiment, reminding module 100 can be LED, LCD, charactron or tri-color tube etc., if LED, LCD, during charactron, it can be multiple, be such as three, it is respectively red, green and yellow, often kind of Color pair answers the scope of a pressure signal, available redness represents pressure tension, moderate pressure is represented by green, represent that pressure is less by yellow, regulate by regulating the tightness dressing body 01, then the prompting of tightness is also carried out with reminding module 100, finally make the moderate pressure between vital sign monitor and anemia of pregnant woman's health, easy to use and directly perceived.
Preferably, incorporated by reference to consulting Fig. 2, dress body 01 and comprise the first noumenon 011 and the second body 012, wherein, the first above-mentioned wave filter 102, first differential amplifier circuit 104, first analog to digital conversion circuit 103 and the second wave filter 202, second differential amplifier circuit 204, second analog to digital conversion circuit 203, microprocessor 50, wireless connections module 80 is placed in the inside of the first noumenon 011, key-press module 60, display module 70 and reminding module 100 are placed in the surface of the first noumenon 011, pulling force sensor 101 is arranged at the second body 012 and the position of close the first noumenon 011, multiple thin film fluctuation sensor 201 is arranged on the second body 012.
In a preferred embodiment, thin film fluctuation sensor 201 is active device, and it comprises a power circuit, and the supply voltage of power circuit is the safe voltage that human body can bear, and is namely less than 36 volts, and ripple is less than 50 millivolts.The voltage that the thin film fluctuation sensor 201 of the present embodiment uses is the stable voltage of less than 36 volts, and ripple is less than 50 millivolts, can improve the signal to noise ratio of sensor, reduces power supply noise signal to the interference of thin film fluctuation sensor 201 measuring-signal.
Preferably, multistage mu balanced circuit or the voltage regulation unit such as secondary voltage stabilizing or three grades of voltage stabilizings can be adopted in power circuit, mu balanced circuit or voltage regulation unit can be DC-DC mu balanced circuits of the prior art, in one embodiment, power circuit comprises the first voltage regulation unit and second voltage regulation unit of electrical connection, the stable output voltage of the first voltage regulation unit is 4.4 volts, and the stable output voltage of described second voltage regulation unit is 3.3 volts.In another embodiment, power circuit comprises the first voltage regulation unit, the second voltage regulation unit and the 3rd voltage regulation unit that are electrically connected successively, the stable output voltage of the first voltage regulation unit is 5.0 volts, the stable output voltage of the second voltage regulation unit is 4.4 volts, and the stable output voltage of the 3rd voltage regulation unit is 3.3 volts.
These are only preferred embodiment of the present utility model; not thereby the scope of the claims of the present utility model is limited; every utilize this utility model description and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present utility model.