A monitor capable of displaying a pulse oximetry parameter

Abstract

The utility model provides a kind of monitor capable of displaying pulse breath ratio parameter, including monitor body, still including respiratory data acquisition unit and pulse measurement unit, both are connected with control unit, control unit is connected with display unit in monitor body;Respiratory data acquisition unit is configured to collect the respiratory data of patient, and it is transmitted to control unit after being converted into digital signal, control unit can obtain the respiratory frequency of patient per minute;Pulse measurement unit is configured to be able to collect the pressure signal of patient when measuring pulse, and it is transmitted to control unit after being converted into digital signal, control unit can obtain the pulse number of patient per minute according to pressure signal;Control unit divides the ratio of pulse number per minute by respiratory frequency per minute and transmits to display unit to show, the ratio of pulse number per minute by respiratory frequency per minute is pulse breath ratio parameter. The above-mentioned monitor can display pulse breath ratio parameter on monitor display interface.

Description

Technical Field

[0001] This utility model relates to the field of patient monitor technology, and in particular to a patient monitor capable of displaying pulse-to-breath ratio parameters. Background Technology

[0002] Currently, patient monitors on the market offer some common human performance indicators, such as heart rate (HR), blood pressure (BP), and blood oxygen saturation (SpO2). However, these parameters are displayed independently in a specific area of ​​the monitor's interface. The human body is a complex organism, and these parameters are actually interconnected and can characterize a patient's condition. For example, the pulse-to-breath ratio (PPR) is a commonly used indicator in Traditional Chinese Medicine; it is the ratio of the number of pulses per minute to the number of breaths per minute. However, current monitors struggle to reflect these interrelationships and cannot directly display parameters like the PPR, hindering doctors' assessment of the patient's condition. Utility Model Content

[0003] To address the problems existing in the prior art, this application proposes a monitor capable of displaying the pulse-to-breath ratio parameter, so that the pulse-to-breath ratio parameter can be displayed on the monitor's display interface, facilitating doctors' assessment of the patient's condition.

[0004] To achieve the above objectives, this application proposes a patient monitor capable of displaying a pulse-to-breath ratio parameter, comprising a monitor body, a respiratory data acquisition unit, and a pulse measurement unit, both connected to a control unit. The control unit is connected to a display unit within the monitor body. The respiratory data acquisition unit is configured to acquire the patient's respiratory data, convert it into a digital signal, and transmit it to the control unit. The control unit can obtain the patient's respiratory rate per minute. The pulse measurement unit is configured to acquire the patient's pressure signal during pulse measurement, convert it into a digital signal, and transmit it to the control unit. The control unit can obtain the patient's pulse rate per minute based on the pressure signal. The control unit transmits the ratio of the pulse rate per minute to the respiratory rate per minute to the display unit for display. The ratio of the pulse rate per minute to the respiratory rate per minute is the pulse-to-breath ratio parameter.

[0005] In some embodiments, the control unit is also connected to a storage unit in the monitor body; the control unit is able to store the pulse-ratio parameter through the storage unit.

[0006] The beneficial effect of this solution is that the aforementioned monitor, which can display the pulse-wake ratio parameter, can display the pulse-wake ratio parameter on the monitor's display interface, making it convenient for doctors to judge the patient's condition. Attached Figure Description

[0007] Figure 1 A partial functional block diagram of the monitor in the embodiment is shown.

[0008] Figure 2 A schematic diagram of the main control chip and peripheral circuitry in the control unit of the embodiment is shown.

[0009] Figure 3 A circuit diagram of the respiratory data acquisition unit in the embodiment is shown.

[0010] Figure 4 A partial circuit diagram of the pulse measurement unit in the embodiment is shown.

[0011] Figure 5 A partial circuit diagram of the pulse measurement unit in the embodiment is shown.

[0012] Figure 6 A circuit diagram of the display unit in the embodiment is shown. Detailed Implementation

[0013] The specific embodiments of this application will be further described below with reference to the accompanying drawings.

[0014] In the description of this application, it should be understood that the terms "first," "second," etc., are used to distinguish similar objects, rather than to describe or indicate a specific order or sequence. The terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0015] One of the commonly used indicators in Traditional Chinese Medicine is the pulse-to-breath ratio, which is the ratio of the number of pulses per minute to the number of breaths per minute. This parameter can characterize a patient's disease condition.

[0016] The patient monitor capable of displaying pulse-to-breath ratio parameters involved in this application includes a monitor body, a respiratory data acquisition unit 2, and a pulse measurement unit 3, both of which are connected to a control unit 1. The control unit 1 can be an existing control unit 1 within the monitor body, or it can be a newly added control unit 1 to achieve the functions involved in this application. The control unit 1 is connected to a display unit 4 within the monitor body, and it is also connected to a storage unit 5 within the monitor body. Figure 1 As shown.

[0017] In this embodiment, as Figure 2As shown, the control unit 1 uses an STM32 microcontroller as the control chip U1 to implement the corresponding functions.

[0018] like Figure 3 As shown, the respiratory data acquisition unit 2 includes a first terminal block XP1 for connecting ECG leads to acquire the patient's respiratory data. One pin of the first terminal block XP1, denoted as the first pin, has a lead wire connected via a first resistor R1 to pin 5 of an analog-to-digital converter U2 (model ADS1292). Pin 5 of the analog-to-digital converter U2 is also grounded via a first capacitor C1. Pin 1 of the first terminal block XP1 is also connected to one end of a second capacitor C2. Two wires are led out from the other end of the second capacitor C2. One wire is connected to one end of a third capacitor C3, and the other wire is connected to pin 32 of the analog-to-digital converter U2 via a fourth capacitor C4 connected in series and a fourth resistor R4. The other end of the third capacitor C3 is connected to one end of a third resistor R3, and the other end of the third resistor R3 is grounded. A lead wire is also led out from one end of the third resistor R3 to one end of a second resistor R2. The other end of the second resistor R2 is connected to a first power supply terminal, denoted as ADS_AVCC. A lead wire is also led out from one end of the third resistor R3 to pin 3 of the analog-to-digital converter U2. The circuit design described above enables filtering of the respiratory data collected from the first pin of the first terminal block XP1.

[0019] Another pin of the first terminal XP1, designated as the second pin, has a lead wire connected to the sixth pin of the analog-to-digital converter U2 via a fifth resistor R5. The sixth pin of the analog-to-digital converter U2 is also grounded via a fifth capacitor C5. The second pin of the first terminal XP1 is also connected to one end of a sixth capacitor C6. Two wires extend from the other end of the sixth capacitor C6; one wire connects to one end of a seventh capacitor C7, and the other wire connects to the third pin of the analog-to-digital converter U2 via a series connection of an eighth capacitor C8 and an eighth resistor R8. The other end of the seventh capacitor C7 is connected to one end of a seventh resistor R7, which is grounded. A wire also extends from one end of the seventh resistor R7 to one end of a sixth resistor R6, the other end of which is connected to the first power supply terminal. A wire also extends from one end of the seventh resistor R7 to the fourth pin of the analog-to-digital converter U2. This circuit design allows for filtering of the respiratory data acquired by the second pin of the first terminal XP1.

[0020] Pin 12 of the analog-to-digital converter U2 is connected to the first power supply terminal, and pin 13 is grounded. Pin 19 of the analog-to-digital converter U2 is connected to pin 31 of the control chip U1, pin 20 of the analog-to-digital converter U2 is connected to pin 30 of the control chip U1, and pin 21 of the analog-to-digital converter U2 is connected to pin 32 of the control chip U1, so as to convert the respiratory data acquired by the respiratory data acquisition unit 2 into digital signals and transmit them to the control unit 1. In this embodiment, the analog-to-digital converter U2 adopts a medical-grade ADC chip of model ADS1292, which can meet the actual use requirements.

[0021] like Figures 4-5 As shown, the pulse measurement unit 3 includes an inflation control unit, a deflation control unit, and a pressure measurement unit. These units are all connected to the control unit 1. The inflation control unit controls the operation of the inflation pump, which inflates the wristband or cuff worn by the patient. The deflation control unit controls the opening and closing of the deflation valve, releasing air from the wristband or cuff. The pressure sensor in the pressure measurement unit contacts the patient's skin, converting the collected pressure signal into a digital signal and transmitting it to the control unit 1. The control unit 1 then obtains the pulse rate per minute. The pulse measurement unit 3 described in this application is similar in principle to existing pulse measurement devices. The specific structure and connections of the inflation pump, wristband or cuff, deflation valve, etc., can be referenced from existing technologies and are not the focus of this application; therefore, they will not be further described here.

[0022] In this embodiment, the inflation control unit includes a ninth resistor R9. One end of the ninth resistor R9 is connected to the second power supply terminal, denoted as +3.3V. The other end of the ninth resistor R9 is connected to one end of a tenth resistor R10. A connecting wire is also led from the other end of the ninth resistor R9 to pin 8 of the control chip U1. The other end of the tenth resistor R10 is connected to the base of a first NPN transistor V1. The emitter of the first NPN transistor V1 is grounded, and its collector is connected to the second power supply terminal via an eleventh resistor R11. The collector of transistor V1 is connected to one end of the twelfth resistor R12. Two wires are led out from the other end of the twelfth resistor R12. One wire is connected to the base of the second NPN transistor V2, and the other wire is grounded through the thirteenth resistor R13. The emitter of the second NPN transistor V2 is grounded, and its collector is connected to the anode of the first diode D1. The cathode of the first diode D1 is connected to the second power supply terminal. Wires are led out from both ends of the first diode D1 and connected to the second terminal XP2. The second terminal XP2 is used to connect to the air pump.

[0023] The venting control unit includes a fourteenth resistor R14, one end of which is connected to the second power supply terminal. The other end of the fourteenth resistor R14 is connected to one end of a fifteenth resistor R15. The other end of the fourteenth resistor R14 is also connected to pin 15 of the control chip U1. The other end of the fifteenth resistor R15 is connected to the base of a third NPN transistor V3. The emitter of the third NPN transistor V3 is grounded, and its collector is connected to the second power supply terminal via a sixteenth resistor R16. The collector of the N-type transistor V3 is connected to one end of the seventeenth resistor R17. Two wires are led out from the other end of the seventeenth resistor R17, one connected to the base of the fourth NPN transistor V4, and the other grounded through the eighteenth resistor R18. The emitter of the fourth NPN transistor V4 is grounded, and its collector is connected to the anode of the second diode D2. The cathode of the second diode D2 is connected to the second power supply terminal. Wires are led out from both ends of the second diode D2 and connected to two pins of the third terminal XP3.

[0024] The venting control unit also includes a nineteenth resistor R19, one end of which is connected to the second power supply terminal, and the other end of which is connected to one end of a twentieth resistor R20. The other end of the nineteenth resistor R19 is also connected to pin 16 of the control chip U1. The other end of the twentieth resistor R20 is connected to the base of a fifth NPN transistor V5. The emitter of the fifth NPN transistor V5 is grounded, and its collector is connected to the second power supply terminal via a twenty-first resistor R21. The collector of N-type transistor V5 is connected to one end of resistor R22 (the 22nd resistor). Two wires extend from the other end of resistor R22: one connects to the base of NPN transistor V6, and the other is grounded via resistor R23 (the 23rd resistor). The emitter of NPN transistor V6 is grounded, and its collector is connected to the anode of diode D3. The cathode of diode D3 is connected to the second power supply terminal. Wires extend from both ends of diode D3 to the other two pins of terminal block XP3. Terminal block XP3 is used to connect to the vent valve.

[0025] like Figure 5 As shown, the pressure measurement unit includes a first pressure sensor U3, model MMR901XA. Pin 1 of the first pressure sensor U3 is connected to the third power supply terminal, denoted as +3.3V_S. This pin 1 is also grounded via the ninth capacitor C9. Pins 3, 8, and 12 of the first pressure sensor U3 are all grounded. Pin 13 of the first pressure sensor U3 is connected to its pin 14 via the tenth capacitor C10. Pin 4 of the first pressure sensor U3 is connected to pin 54 of the control chip U1. Pin 5 of the first pressure sensor U3 is connected to pin 51 of the control chip U1. Pin 6 of the first pressure sensor U3 is connected to pin 7 of the control chip U1. Pin 7 of the first pressure sensor U3 is connected to pin 53 of the control chip U1. Pin 9 of the first pressure sensor U3 is connected to pin 52 of the control chip U1. Through the above circuit design, pressure signals can be acquired and converted into digital signals, which are then transmitted to the control unit 1. The control unit 1 can obtain the pulse rate per minute. Because it uses the MMR901XA pressure sensor, it integrates the drive circuit, amplification circuit, and A / D conversion circuit into one unit, greatly simplifying the circuit design.

[0026] In this embodiment, the pressure measurement unit also includes a second pressure sensor U4 of model MMR901XA. By setting two pressure sensors, the other can work normally when one fails, ensuring the normal use of the monitor.

[0027] Pin 1 of the second pressure sensor U4 is connected to the third power supply terminal. Pin 1 is also grounded through the eleventh capacitor C11. Pins 3, 8, and 12 of the second pressure sensor U4 are all grounded. Pin 13 of the second pressure sensor U4 is connected to its pin 14 through the twelfth capacitor C12. Pin 4 of the second pressure sensor U4 is connected to pin 80 of the control chip U1. Pin 5 of the second pressure sensor U4 is connected to pin 77 of the control chip U1. Pin 6 of the second pressure sensor U4 is connected to pin 9 of the control chip U1. Pin 7 of the second pressure sensor U4 is connected to pin 79 of the control chip U1. Pin 9 of the second pressure sensor U4 is connected to pin 78 of the control chip U1.

[0028] like Figure 6 As shown, the display unit 4 includes a fourth terminal block XP4, which is used to connect to the display. The relevant pins of the fourth terminal block XP4 are connected to the control chip U1. This is similar to the structure of a monitor in the prior art and is not the focus of this application. Therefore, it will not be described further here.

[0029] In practical use, the respiratory data acquisition unit 2 collects respiratory data, converts it into a digital signal, and transmits it to the control unit 1. The control unit 1 can obtain the patient's respiratory rate per minute. Specifically, obtaining the patient's respiratory rate per minute based on the respiratory data collected by the respiratory data acquisition unit 2 is a known technique in the prior art. The pulse measurement unit 3 collects pressure signals, converts them into digital signals, and transmits them to the control unit 1. The control unit 1 can obtain the patient's pulse rate per minute. Specifically, obtaining the patient's pulse rate per minute based on the pressure signals collected by the pulse measurement unit 3 is a known technique in the prior art. The control unit 1 can obtain the pulse-to-breath ratio parameter based on the pulse rate per minute and the respiratory rate per minute. The pulse-to-breath ratio is the ratio obtained by dividing the pulse rate per minute by the respiratory rate per minute. The control unit 1 transmits the pulse-to-breath ratio parameter to the display unit 4 for display. The control unit 1 can also store the pulse-to-breath ratio parameter through the storage unit 5.

[0030] To facilitate doctors' more intuitive understanding of a patient's pulse-brachial ratio over a long period, the control unit 1 can also generate waveforms from the pulse-brachial ratio parameters stored in the storage unit 5 for each time period, and display them through the display unit 4. Specifically, the technique used by the control unit 1 to generate waveforms from the pulse-brachial ratio parameters stored in the storage unit 5 is a known technique.

[0031] The monitor involved in this application can display the pulse-to-breath ratio parameter on the monitor's display interface, which facilitates doctors to judge the patient's condition, such as judging the patient's deficiency or excess, and the strength or weakness of qi and blood. This application can also draw the pulse-to-breath ratio data into a waveform and store the waveform, so that doctors can review the patient's long-term pulse-to-breath ratio data to judge and predict the development trend of the patient's disease.

[0032] The above description is merely a preferred embodiment of this application, but the scope of protection of this application is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this application, based on the technical solution and concept of this application, should be included within the scope of protection of this application.

Claims

1. A patient monitor capable of displaying pulse-ratio parameters, comprising a monitor body, characterized in that: It also includes a respiratory data acquisition unit and a pulse measurement unit, both of which are connected to a control unit. The control unit is connected to a display unit in the monitor body. The respiratory data acquisition unit is configured to collect the patient's respiratory data, convert it into a digital signal, and transmit it to the control unit. The control unit can obtain the patient's respiratory rate per minute. The pulse measurement unit is configured to collect the patient's pressure signal when measuring the pulse, convert it into a digital signal, and transmit it to the control unit. The control unit can obtain the patient's pulse rate per minute based on the pressure signal. The control unit transmits the ratio of the pulse rate per minute to the respiratory rate per minute to the display unit for display. The ratio of the pulse rate per minute to the respiratory rate per minute is the pulse-rhythm ratio parameter.

2. The monitor capable of displaying pulse-ratio parameters according to claim 1, characterized in that: The control unit is also connected to the storage unit in the monitor body; the control unit can store the pulse-ratio parameter through the storage unit.

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