WO2024245138A1 - 血氧仪调节方法和装置 - Google Patents
血氧仪调节方法和装置 Download PDFInfo
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- WO2024245138A1 WO2024245138A1 PCT/CN2024/095189 CN2024095189W WO2024245138A1 WO 2024245138 A1 WO2024245138 A1 WO 2024245138A1 CN 2024095189 W CN2024095189 W CN 2024095189W WO 2024245138 A1 WO2024245138 A1 WO 2024245138A1
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- light intensity
- intensity data
- oximeter
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- preset threshold
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J1/00—Photometry, e.g. photographic exposure meter
- G01J1/42—Photometry, e.g. photographic exposure meter using electric radiation detectors
- G01J1/44—Electric circuits
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/02—Detecting, measuring or recording for evaluating the cardiovascular system, e.g. pulse, heart rate, blood pressure or blood flow
- A61B5/024—Measuring pulse rate or heart rate
- A61B5/02416—Measuring pulse rate or heart rate using photoplethysmograph signals, e.g. generated by infrared radiation
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/145—Measuring characteristics of blood in vivo, e.g. gas concentration or pH-value ; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid or cerebral tissue
- A61B5/1455—Measuring characteristics of blood in vivo, e.g. gas concentration or pH-value ; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid or cerebral tissue using optical sensors, e.g. spectral photometrical oximeters
- A61B5/14551—Measuring characteristics of blood in vivo, e.g. gas concentration or pH-value ; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid or cerebral tissue using optical sensors, e.g. spectral photometrical oximeters for measuring blood gases
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/145—Measuring characteristics of blood in vivo, e.g. gas concentration or pH-value ; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid or cerebral tissue
- A61B5/1455—Measuring characteristics of blood in vivo, e.g. gas concentration or pH-value ; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid or cerebral tissue using optical sensors, e.g. spectral photometrical oximeters
- A61B5/14551—Measuring characteristics of blood in vivo, e.g. gas concentration or pH-value ; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid or cerebral tissue using optical sensors, e.g. spectral photometrical oximeters for measuring blood gases
- A61B5/14552—Details of sensors specially adapted therefor
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
- A61B5/6801—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be attached to or worn on the body surface
- A61B5/6813—Specially adapted to be attached to a specific body part
- A61B5/6825—Hand
- A61B5/6826—Finger
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/72—Signal processing specially adapted for physiological signals or for diagnostic purposes
- A61B5/7221—Determining signal validity, reliability or quality
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Program-control systems
- G05B19/02—Program-control systems electric
- G05B19/04—Program control other than numerical control, i.e. in sequence controllers or logic controllers
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J1/00—Photometry, e.g. photographic exposure meter
- G01J1/42—Photometry, e.g. photographic exposure meter using electric radiation detectors
- G01J1/44—Electric circuits
- G01J2001/4446—Type of detector
- G01J2001/446—Photodiode
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Program-control systems
- G05B19/02—Program-control systems electric
- G05B19/04—Program control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Program control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0426—Programming the control sequence
Definitions
- the present application relates to a blood oximeter adjustment method and device, and in particular, to a blood oximeter adjustment method and device.
- oximeter As a portable medical device, users can use the oximeter to monitor their health status, including heart rate and blood oxygen, anytime and anywhere. There are two measurement methods of the oximeter: reflection and transmission.
- the measurement principle of the transmission oximeter is as follows: there is a light-emitting LED on one side of the finger, and a photodiode on the other side (used to detect light intensity and convert light into current. The stronger the light, the greater the current).
- Human fingers including skin, bones, and blood
- the blood absorbs more light than other tissues.
- the blood presents a pulsating form, that is, a pulse. This will cause the absorbed light to be different, and the feedback to the photodiode will present a changing photocurrent.
- the sampling frequency is high enough, a complete and continuous pulse waveform will be presented.
- the heart rate is calculated by counting the number of continuous pulse waveforms and calculating the number of waveforms per minute, that is, the number of heartbeats.
- the oxygen inhaled through breathing will combine with hemoglobin in the blood to form oxygenated hemoglobin.
- Hemoglobin has a higher absorption coefficient for red light
- oxygenated hemoglobin has a higher absorption coefficient for infrared light
- the blood oxygen result can be calculated by detecting oxygenated hemoglobin and hemoglobin using red light and infrared light respectively.
- the current mainstream blood oximeters have problems during use due to the thickness of human fingers, skin color, and environmental factors, resulting in a narrow application range and inaccurate test results.
- the embodiments described herein provide a blood oximeter adjustment method and device to solve the problems existing in the prior art.
- a method for adjusting a blood oximeter comprising:
- the light emission intensity of the light emitting component of the oximeter is adjusted according to the parameter information.
- the state information includes the number of light intensity data included in the light intensity data group and/or the time of collecting the light intensity data group, and the type of parameter information includes perfusion index and/or average light intensity.
- the step of acquiring light intensity data corresponding to the target finger to form a light intensity data group includes:
- Determining parameter information corresponding to the light intensity data group according to the state information corresponding to the light intensity data group includes:
- a pre-associated adjustment parameter type is configured according to a target preset threshold value, and parameter information corresponding to the adjustment parameter type is calculated according to the acquired light intensity data group.
- the target preset threshold includes at least a first target preset threshold and a second target preset threshold
- the step of sequentially forming a light intensity data group with state information as a target preset threshold value comprises:
- the configuring of a pre-associated adjustment parameter type according to a preset target threshold value, and calculating parameter information corresponding to the adjustment parameter type according to the acquired light intensity data group includes:
- the adjustment parameter type is determined to be average light intensity according to the second light intensity data group, and the corresponding first average light intensity is calculated according to the second light intensity data group.
- calculating the corresponding first perfusion index according to the first light intensity data set includes:
- the first perfusion index is determined by dividing the average value by the difference between the maximum light intensity value and the minimum light intensity value.
- calculating parameter information corresponding to the light intensity data group according to state information corresponding to the light intensity data group includes:
- the pre-associated adjustment parameter type is configured according to the target preset threshold, and the parameter information corresponding to the adjustment parameter type is calculated according to the latest acquired sub-light intensity data group, wherein the light intensity data group includes N sub-light intensity data groups, the status information of each sub-light intensity data group is the target preset threshold, and N is an integer greater than or equal to 1.
- the target preset threshold includes at least a first target preset threshold and a second target preset threshold
- a pre-associated adjustment parameter type is configured according to the target preset threshold, and parameter information corresponding to the adjustment parameter type is calculated according to the latest acquired sub-light intensity data group, including:
- the adjustment parameter type is determined to be average light intensity according to the second target preset threshold, and the corresponding second average light intensity is calculated according to the latest acquired sub-light intensity data group.
- the state parameter is the time for collecting the light intensity data set
- the first target preset threshold is the time for one cycle of the pulse wave
- the second target preset threshold is less than the time for one cycle of the pulse wave
- the state parameter is the number of light intensity data groups collected, and the second target preset threshold is less than the first target preset threshold.
- adjusting the light emission intensity of the light emitting component of the oximeter according to the parameter information includes:
- the current gear of the oximeter is adjusted according to the relationship between the parameter information and the preset parameter information.
- the current gear of the oximeter includes multiple gears, among which the current value of the first gear is: when there is no finger in the oximeter, the current value required for the maximum light intensity that the photodiode in the oximeter can receive, and this current is the minimum current; the current value of the highest gear is: according to a preset dark finger placed in the oximeter, the current value required for the maximum light intensity that the photodiode can receive, and this current value is the maximum current; the current values of other gears are obtained by dividing the maximum current and the minimum current equally.
- adjusting the current level of the oximeter includes increasing the current level of the oximeter and decreasing the current level of the oximeter, and the value of the current level increased or decreased each time is one level.
- adjusting the light emission intensity of the light emitting component of the oximeter according to the parameter information includes:
- the current gear of the oximeter is adjusted according to the relationship between the average light intensity and the preset average light intensity.
- the preset perfusion index includes a first preset perfusion index and a second preset perfusion index
- the adjusting the current gear of the oximeter according to the relationship between the perfusion index and the preset perfusion index includes:
- the current level of the oximeter is reduced.
- the preset average light intensity includes a first preset average light intensity and a second preset average light intensity; and adjusting the current gear of the oximeter according to the relationship between the average light intensity and the preset average light intensity includes:
- the current level of the oximeter is reduced.
- the method further includes:
- a blood oximeter adjustment device comprising:
- the main control module is used to obtain the light intensity data received by the light receiving module to form a light intensity data group, and calculate the parameter information corresponding to the light intensity data group according to the state information corresponding to the light intensity data group, and adjust the luminous intensity of the light emitting component according to the parameter information.
- an electronic device comprising a memory and a processor, the memory storing a computer program, and the processor implementing the above method when executing the computer program.
- a computer-readable storage medium wherein the storage medium stores a computer program, and when the computer program is executed, the method as described above is implemented.
- the oximeter adjustment method and device obtains light intensity data corresponding to the target finger to form a light intensity data group, wherein the light intensity data is the light intensity data detected by the light receiving component of the oximeter through the target finger.
- Light intensity data of the finger according to the state information corresponding to the light intensity data group, calculate the parameter information corresponding to the light intensity data group; according to the parameter information, adjust the luminous intensity of the light emitting component of the oximeter, wherein the parameter information corresponding to the calculated light intensity data group includes the average light intensity and the perfusion index, and the current gear of the oximeter is adjusted according to the average light intensity, which can eliminate the influence of bright fingers, dark fingers and ambient light on the accuracy of the oximeter measurement results, and adjust the current gear of the oximeter according to the perfusion index, that is, according to the perfusion index, adjust the current gear of the oximeter to eliminate the influence of the human body's own environment on the accuracy of the oximeter measurement results, that is, it can eliminate the influence
- FIG1 is a schematic flow chart of a blood oximeter adjustment method provided in an embodiment of the present disclosure
- FIG2 is a flow chart of another blood oximeter adjustment method provided in an embodiment of the present disclosure.
- FIG3 is a schematic diagram of the structure of a blood oximeter adjustment device provided in an embodiment of the present disclosure
- FIG. 4 is a schematic diagram of the structure of a computer device provided in an embodiment of the present disclosure.
- a and/or B can mean: A exists, A and B exist at the same time, and B exists.
- the character "/" in this article generally indicates that the associated objects before and after are in an "or" relationship.
- first and second are used only to distinguish one component (or a part of a component) from another component (or another part of a component).
- plural means more than two (including two), and similarly, “multiple groups” means more than two groups (including two).
- FIG1 is a flow chart of a blood oximeter adjustment method provided by an embodiment of the present disclosure. As shown in FIG1 , the specific process of the blood oximeter adjustment method includes:
- the light intensity data group includes a plurality of light intensity data
- the light intensity data is light intensity data detected by a light receiving component of the oximeter and passing through the target finger.
- the photodiode of the oximeter detects the light intensity data passing through the target finger.
- One possible way to obtain the light intensity data corresponding to the target finger and form a light intensity data group includes: obtaining the light intensity data corresponding to the target finger and sequentially forming a light intensity data group whose state information is a target preset threshold.
- the target preset threshold is set to include at least a first target preset threshold and a second target preset threshold, and by continuously acquiring light intensity data corresponding to the target finger, a first light intensity data group of the first target preset threshold and a second light intensity data group of the second target preset threshold are sequentially formed.
- the first target preset threshold is 100
- the second target preset threshold is 30.
- a first light intensity data group whose state information is the first target preset threshold is formed in sequence
- a light intensity data group whose state information is the second target preset threshold is formed in sequence. For example, if the collected light intensity data corresponding to the target finger is 150, then the light intensity data 1-100 form a first light intensity data group. Since the number of data of the remaining light intensity data 101-150 does not meet the first preset threshold, the remaining light intensity data 101-150 do not form a first light intensity data group.
- the light intensity data 1-30 can also form a second light intensity data group, 31-60 form a second light intensity data group, 61-90 form a second light intensity data group, 91-120 form a second light intensity data group, and 121-150 form a second light intensity data group.
- the state information includes the number of light intensity data included in the light intensity data group and/or the time of collecting the light intensity data group, and the parameter information includes the perfusion index and/or the average light intensity.
- PI value reflects the pulsating blood flow, that is, reflects the blood perfusion capacity. The greater the pulsating blood flow, the more pulsating components, and the greater the PI value. Therefore, the measurement site (skin, nails, bones, etc.) and the patient's own blood perfusion (arterial blood flow) will affect the PI value. Since the sympathetic nerves affect the heart rate and arterial blood pressure (affecting the pulse), the PI value will be affected by the sympathetic nerves. Therefore, the human body's nervous regulation system or mental state will also indirectly affect the PI value.
- the average light intensity is the average value of the light intensity passing through the target finger detected by the photodiode of the oximeter.
- the average light intensity indirectly reflects the blood flow status of the human body.
- parameter information corresponding to the light intensity data group is determined according to state information corresponding to the light intensity data group, including: configuring a pre-associated adjustment parameter type according to a target preset threshold, and calculating parameter information corresponding to the adjustment parameter type based on the acquired light intensity data group.
- the adjustment parameter type is determined to be the perfusion index according to the first target preset threshold, and the corresponding first perfusion index is calculated according to the first light intensity data group; the adjustment parameter type is determined to be the average light intensity according to the second target preset threshold, and the corresponding first average light intensity is calculated according to the second light intensity data group.
- the corresponding first perfusion index is calculated based on the first light intensity data group
- the corresponding first average light intensity is calculated based on the second light intensity data group.
- the first perfusion index is calculated as follows: first, the average value DC corresponding to the 100 light intensity data included in the first light intensity data group is calculated, and then the difference AC corresponding to the maximum light intensity value and the minimum light intensity value corresponding to the 100 light intensity data included in the first light intensity data group is calculated, and the first perfusion index is determined by multiplying the average value DC with the difference AC between the maximum light intensity value and the minimum light intensity value.
- the first average light intensity is calculated as follows: the average value DC corresponding to the 30 light intensity data included in the second light intensity data group is calculated.
- the number of acquired light intensity data does not meet the first target preset threshold value, but meets the second target preset threshold value, at this time, by acquiring the first average light intensity corresponding to 30 light intensity data in the light intensity data group, it is possible to adjust the current gear according to the user's finger situation and then adjust the light intensity of the light-transmitting fingers, such as bright fingers (thin fingers are easy to transmit light) and dark fingers (fat fingers are not easy to transmit light), thereby reducing the time for adjusting to the appropriate light intensity and improving the accuracy of the oximeter measurement results.
- the light-transmitting fingers such as bright fingers (thin fingers are easy to transmit light) and dark fingers (fat fingers are not easy to transmit light
- the first perfusion index corresponding to the light intensity data is calculated, and then the current gear of the oximeter is adjusted according to the first perfusion index, that is, according to the perfusion index, the current gear of the oximeter is adjusted to eliminate the influence of the human body's own environment on the accuracy of the oximeter measurement results, thereby improving the accuracy of the oximeter.
- parameter information corresponding to the light intensity data group is determined based on status information corresponding to the light intensity data group, including: when the acquired status information of the light intensity data group meets N times the target preset threshold, a pre-associated adjustment parameter type is configured according to the target preset threshold, and parameter information corresponding to the adjustment parameter type is calculated based on the most recently acquired sub-light intensity data group, wherein the light intensity data group includes N sub-light intensity data groups, the status information of each sub-light intensity data group is the target preset threshold, and N is an integer greater than or equal to 1.
- the adjustment parameter type is determined to be the perfusion index according to the first target preset threshold, and the corresponding second perfusion index is calculated according to the latest acquired sub-light intensity data group;
- the adjustment parameter type is determined to be the average light intensity according to the second target preset threshold, and the corresponding second average light intensity is calculated according to the latest acquired sub-light intensity data group.
- the first target preset threshold is 100
- the second target preset threshold is 30, and a light intensity data group is formed by acquiring light intensity data corresponding to the target finger.
- a times the first target preset threshold for example, if the collected light intensity data corresponding to the target finger is 150
- the light intensity data group composed of light intensity data 1-100 meets 1 times the first target preset threshold.
- the sub-light intensity data group composed of the light intensity data corresponding to 1-100 has calculated the corresponding perfusion index, and as the light intensity data continues to increase, it increases to 200, that is, the status information of the light intensity data group meets 2 times the first target preset threshold.
- the second perfusion index corresponding to the sub-light intensity data group formed by the light intensity data 101-200 is calculated. If the number of light intensity data collected corresponding to the target finger is 150, light intensity data 1-30 form a second light intensity data group, 31-60 form a second light intensity data group, 61-90 form a second light intensity data group, 91-120 form a second light intensity data group, and 121-150 form a second light intensity data group. As the light intensity data continues to increase, it increases to 180, that is, the state information of the light intensity data group meets 6 times the second target preset threshold. At this time, the second average light intensity corresponding to the sub-light intensity data group formed by light intensity data 151-180 is calculated.
- the first target preset threshold is the time for one cycle of the pulse wave
- the second target preset threshold is less than the time for one cycle of the pulse wave
- the second target preset threshold is less than the first target preset threshold.
- the parameter information corresponding to the light intensity data group can be determined by the number of light intensity data groups collected or the time of collecting light intensity data groups.
- the current level of the oximeter is adjusted according to the relationship between the parameter information and the preset parameter information.
- the preset parameter information includes a preset perfusion index and a preset average light intensity.
- adjusting the current level of the oximeter according to the relationship between the parameter information and the preset parameter information includes: adjusting the current level of the oximeter according to the relationship between the perfusion index and the preset perfusion index.
- the first preset perfusion index is 0.4
- the second preset perfusion index is 1, wherein 0.4 is a weak perfusion index and 1 is a strong perfusion index. Under this perfusion index, the blood oxygen value measurement results are inaccurate.
- the current gear of the oximeter is adjusted according to the perfusion index. Since the perfusion index can stably reflect the blood flow state of the human body and is less affected by the external environment, for example, when the human hands are cold, the blood flow at the fingertips decreases and the PI value is low. By calculating the PI value and adjusting the current gear of the oximeter, the inaccurate measurement results of the oximeter caused by the human body being affected by changes in the ambient temperature can be reduced.
- adjusting the current level of the oximeter according to the relationship between the average light intensity and the preset average light intensity includes: adjusting the current level of the oximeter according to the relationship between the perfusion index and the preset perfusion index.
- the current gear of the oximeter is increased; when the average light intensity is greater than the second preset average light intensity, the current gear of the oximeter is reduced.
- the influence of bright fingers (thin fingers are easy to transmit light) and dark fingers (fat fingers are not easy to transmit light) on the accuracy of the oximeter measurement results can be avoided. It can reduce the influence of light intensity and filter out the influence of ambient light on the accuracy of oximeter measurement results.
- the value of the current level increased or decreased each time is one level.
- the current gear of the oximeter includes 5 gears.
- the current value of the first gear is: when there is no finger in the oximeter, the current value required for the maximum light intensity that the photodiode in the oximeter can receive, and this current is the minimum current.
- the current value of the fifth gear is, based on the big data collection of the thickness of multiple people's fingers, the thickest (dark finger) is put into the oximeter, and the current value required for the maximum light intensity that the photodiode can receive is the maximum current.
- the current values of other gears are the equal parts of the maximum current and the minimum current.
- the oximeter adjustment method obtains light intensity data corresponding to a target finger to form a light intensity data group, wherein the light intensity data is light intensity data detected by a light receiving component of the oximeter and transmitted through the target finger; according to state information corresponding to the light intensity data group, parameter information corresponding to the light intensity data group is calculated; and according to the parameter information, the luminous intensity of the light emitting component of the oximeter is adjusted, wherein the parameter information corresponding to the calculated light intensity data group includes an average light intensity and a perfusion index, and the current gear of the oximeter is adjusted according to the average light intensity, so as to eliminate the influence of bright fingers, dark fingers and ambient light on the accuracy of the oximeter measurement result, and the current gear of the oximeter is adjusted according to the perfusion index, that is, according to the perfusion index, the current gear of the oximeter is adjusted to eliminate the influence of the human body's own environment on the accuracy of the oximeter measurement result, that is, the influence of the thickness of
- different adjustment parameter types are determined according to the state information of the light intensity data group; the efficiency of adjusting the light intensity is enhanced, so that the blood oximeter can output a stable value in a shorter time, and the blood oximeter outputs a value faster.
- the method before obtaining the light intensity data corresponding to the target finger, the method further includes: adjusting the current gear of the oximeter to an initial gear, wherein the initial gear is a middle gear of the current gear of the oximeter.
- the oximeter Before obtaining the light intensity data corresponding to the target finger, first adjust the current gear of the oximeter to the initial gear, that is, the middle gear of the current gear, to ensure the accuracy of the light intensity data obtained later, reduce unnecessary adjustment of the current gear, and improve the efficiency of the oximeter in outputting stable values.
- the oximeter adjustment method disclosed in the present application also includes: obtaining a preset number of light intensity data groups by sliding value acquisition; calculating the average value of the light intensity data group; when the average value is greater than a first preset value and the current gear is at the lowest gear, determining that the finger has fallen off and outputting a warning message.
- the light intensity data corresponding to the target finger at the lowest gear is obtained according to a preset sliding method; when the sliding window meets the preset sliding window, the average value of the light intensity data group corresponding to each sliding window is determined in turn; when the average value is greater than the first preset value and the current gear is the lowest gear, it is determined that the finger has fallen off and an early warning message is output.
- the target finger status information needs to be determined in the process of obtaining the light intensity data corresponding to the next target finger, that is, when obtaining the light intensity data group corresponding to the target finger, if the target finger slips, the light intensity data corresponding to the target finger needs to be obtained again.
- the way to determine whether the target finger slips is: obtain the light intensity data corresponding to the target finger at the lowest gear in a preset sliding manner; when the sliding window meets the preset sliding window, determine the average value of the light intensity data corresponding to each sliding window in turn; determine the state information of the target finger according to the average value of the light intensity data corresponding to each sliding window.
- the preset sliding mode is to slide to obtain the light intensity data corresponding to windows 1-8, 2-9, 3-10, ..., and the number of sliding windows is related to the target preset threshold and the light intensity data included in the sliding window. For example, when the target preset threshold is 30, the light intensity data included in the sliding window is 8, and the number of sliding windows is 23. When the average value of the light intensity data included in a sliding window fluctuates greatly, the light intensity data collected in the sliding window will show the phenomenon of the target finger slipping.
- the oximeter by adjusting the current of the oximeter, it is ensured that the oximeter outputs a stable waveform, thereby achieving accurate detection of human blood oxygen changes based on the waveform output by the oximeter.
- step S11 is executed to adjust the oximeter to the initial current gear, which is the middle gear in the oximeter current gear.
- step S12 is executed to obtain the light intensity data corresponding to the target finger at the initial current gear.
- step S13 is to determine the state information of the target finger according to a preset sliding method. The specific process of step S13 is to first obtain the light intensity data corresponding to the target finger at the lowest gear according to the preset sliding method, and then determine the average value of the light intensity data corresponding to each sliding window in turn. Finally, according to the average value of the light intensity data corresponding to each sliding window, the state information of the target finger is determined.
- the state information of the target finger is determined by the mean value.
- step S14 is executed to determine whether the light intensity data corresponding to the target finger obtained meets the target preset threshold value.
- step S15 is executed.
- step S20 is jumped to determine whether the light intensity data corresponding to the target finger meets the second target preset threshold value (30).
- step S15 the average value DC of the light intensity data group corresponding to the target finger is obtained.
- step S16 the difference AC between the maximum and minimum values of the light intensity data in the light intensity data group corresponding to the target finger is obtained.
- step S17 the perfusion index is determined according to the average value of the light intensity data group and the difference between the maximum and minimum values of the light intensity data in the light intensity data group.
- step S18 it is determined whether the perfusion index is less than 0.4.
- step S20 determine whether the light intensity data included in the light intensity data group corresponding to the target finger meets the second target preset threshold; when the light intensity data included in the light intensity data group meets the second target preset threshold, execute step S21, calculate the average light intensity of the light intensity data corresponding to the second target preset threshold; according to the average light intensity of the calculated light intensity data, execute step S22, determine whether the average light intensity exceeds the upper limit; when the average light intensity exceeds the upper limit, the current is decreased by one level; when the average light intensity does not exceed the upper limit, execute step S23, determine whether the average light intensity is less than the lower line; when the average light intensity is less than the lower line, the current is increased by one level; when the average light intensity is not
- the present disclosure further provides a blood oximeter adjustment device, as shown in FIG3 , the blood oximeter adjustment device comprises:
- the main control module 230 is used to obtain the light intensity data received by the light receiving module to form a light intensity data group, calculate the parameter information corresponding to the light intensity data group according to the state information corresponding to the light intensity data group, and adjust the luminous intensity of the light emitting component according to the parameter information.
- the blood oxygen meter adjustment device includes: a light emitting component, a light receiving component and a main control module, wherein the main control module is connected to the light emitting component and the light receiving module; the main control module is used to obtain light
- the light intensity data received by the receiving module is formed into a light intensity data group, and the parameter information corresponding to the light intensity data group is calculated according to the state information corresponding to the light intensity data group, and the luminous intensity of the light emitting component is adjusted according to the parameter information.
- the parameter information corresponding to the calculated light intensity data group includes the average light intensity and the perfusion index
- the current gear of the oximeter is adjusted according to the average light intensity, which can eliminate the influence of bright fingers, dark fingers and ambient light on the accuracy of the oximeter measurement results
- the current gear of the oximeter is adjusted according to the perfusion index, that is, according to the perfusion index
- the current gear of the oximeter is adjusted to eliminate the influence of the human body's own environment on the accuracy of the oximeter measurement results, that is, it can eliminate the influence of the thickness of human fingers and skin color on the accuracy of the oximeter measurement results, and can also eliminate the influence of environmental factors on the accuracy of the oximeter measurement results.
- different adjustment parameter types are determined according to the state information of the light intensity data group; the efficiency of adjusting the light intensity is enhanced, so that the oximeter can output a stable value in a shorter time, and the oximeter outputs a value faster.
- the present application embodiment also provides a computer device. Please refer to Figure 4 for details, which is a basic structural block diagram of the computer device of the present embodiment.
- the computer device includes a memory 410 and a processor 420 that are connected to each other through a system bus. It should be noted that the figure only shows a computer device with components 410-420, but it should be understood that it is not required to implement all the components shown, and more or fewer components can be implemented instead. Among them, those skilled in the art can understand that the computer device here is a device that can automatically perform numerical calculations and/or information processing according to pre-set or stored instructions, and its hardware includes but is not limited to microprocessors, application specific integrated circuits (Application Specific Integrated Circuit, ASIC), programmable gate arrays (Field-Programmable Gate Array, FPGA), digital processors (Digital Signal Processor, DSP), embedded devices, etc.
- ASIC Application Specific Integrated Circuit
- FPGA Field-Programmable Gate Array
- DSP Digital Signal Processor
- Computer devices can be computing devices such as desktop computers, notebooks, PDAs, and cloud servers. Computer devices can interact with users through keyboards, mice, remote controls, touch pads, or voice control devices.
- the memory 410 includes at least one type of readable storage medium, and the readable storage medium includes a non-volatile memory or a volatile memory, for example, a flash memory, a hard disk, a multimedia card, a card-type memory (for example, an SD or DX memory, etc.), a random access memory (RAM), a read-only memory (ROM), Erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), programmable read-only memory (PROM), magnetic memory, magnetic disk, optical disk, etc.
- RAM may include static RAM or dynamic RAM.
- memory 410 may be an internal storage unit of a computer device, for example, a hard disk or memory of the computer device.
- memory 410 may also be an external storage device of a computer device, such as a plug-in hard disk, a smart memory card (SMC), a secure digital (SD) card or a flash card (Flash Card) equipped on the computer device.
- memory 410 may also include both an internal storage unit of a computer device and an external storage device thereof.
- memory 410 is generally used to store an operating system and various application software installed on a computer device, such as the program code of the above method, etc.
- memory 410 may also be used to temporarily store various types of data that have been output or are to be output.
- the processor 420 is generally used to perform the overall operation of the computer device.
- the memory 410 is used to store program codes or instructions
- the program code includes computer operation instructions
- the processor 420 is used to execute the program codes or instructions stored in the memory 410 or process data, such as running the program code of the above method.
- the bus can be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus, or an Extended Industry Standard Architecture (EISA) bus.
- ISA Industry Standard Architecture
- PCI Peripheral Component Interconnect
- EISA Extended Industry Standard Architecture
- the bus system can be divided into an address bus, a data bus, a control bus, etc. For ease of representation, only one thick line is used in the figure, but it does not mean that there is only one bus or one type of bus.
- FIG. 1 Another embodiment of the present application also provides a computer-readable medium, which may be a computer-readable signal medium or a computer-readable medium.
- a processor in a computer reads a computer-readable program code stored in the computer-readable medium, so that the processor can execute the functional actions specified in each step or a combination of steps in the above method; and generate a device for implementing the functional actions specified in each block or a combination of blocks in the block diagram.
- Computer readable media include but are not limited to electronic, magnetic, optical, electromagnetic, infrared storage or A semiconductor system, device or apparatus, or any appropriate combination of the foregoing, wherein the memory is used to store program codes or instructions, the program codes include computer operation instructions, and the processor is used to execute the program codes or instructions of the above method stored in the memory.
- the disclosed systems, devices and methods can be implemented in other ways.
- the device embodiments described above are only schematic, for example, the division of modules or units is only a logical function division, and there may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed.
- Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.
- Each functional unit or module in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
- the above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.
- the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium.
- the computer software product is stored in a storage medium, including several instructions for a computer device (which can be a personal computer, server, or network device, etc.) or a processor (processor) to perform all or part of the steps of the various embodiments of the present application.
- the aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM), random access memory (RAM), disk or optical disk and other media that can store program code.
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Abstract
Description
Claims (17)
- 一种血氧仪调节方法,其特征在于,包括:获取目标手指对应的光强数据,形成光强数据组,所述光强数据为血氧仪的光接收部件检测到的透过所述目标手指的光强数据;根据所述光强数据组对应的状态信息,计算所述光强数据组对应的参数信息;根据所述参数信息调节所述血氧仪的光发射部件的发光强度。
- 根据权利要求1所述的方法,其特征在于,所述状态信息包括光强数据组包括的光强数据的个数和/或采集光强数据组的时间,所述参数信息的类型包括灌注指数和/或平均光强。
- 根据权利要求1所述的方法,其特征在于,所述获取目标手指对应的光强数据,形成光强数据组,包括:采集目标手指的光强数据,依次形成状态信息为目标预设阈值的光强数据组;所述根据所述光强数据组对应的状态信息,确定所述光强数据组对应的参数信息,包括:根据目标预设阈值配置预先关联的调节参数类型,并根据获取到的光强数据组计算与所述调节参数类型对应的参数信息。
- 根据权利要求3所述的方法,其特征在于,所述目标预设阈值至少包括第一目标预设阈值和第二目标预设阈值;所述依次形成状态信息为目标预设阈值的光强数据组,包括:依次形成状态信息为第一目标预设阈值的第一光强数据组,以及依次形成状态信息为第二目标预设阈值的第二光强数据组;所述根据目标预设阈值配置预先关联的调节参数类型,并根据获取到的光强数据组计算与所述调节参数类型对应的参数信息,包括:根据第一目标预设阈值确定调节参数类型为灌注指数,并根据第一光强数据组计算对应的第一灌注指数;根据第二目标预设阈值确定调节参数类型为平均光强,并根据第二光强数据组计算对应的第一平均光强。
- 根据权利要求4所述的方法,其特征在于,根据第一光强数据组计算对应的第一灌注指数,包括:计算所述第一光强数据组中平均值;计算所述第一光强数据组包括的光强数据对应的最大光强值与最小光强值的差值;通过将所述平均值与最大光强值与最小光强值的差值确定第一灌注指数。
- 根据权利要求1所述的方法,其特征在于,根据所述光强数据组对应的状态信息,计算所述光强数据组对应的参数信息,包括:当获取到的所述光强数据组的状态信息满足N倍的目标预设阈值时,根据目标预设阈值配置预先关联的调节参数类型,并根据最新获取到的子光强数据组计算与所述调节参数类型对应的参数信息,其中,所述光强数据组包括N个子光强数据组,每个子光强数据组的状态信息为目标预设阈值,N为大于等于1的整数。
- 根据权利要求6所述的方法,其特征在于,所述目标预设阈值至少包括第一目标预设阈值和第二目标预设阈值;所述当获取到的所述光强数据组的状态信息满足N倍的目标预设阈值时,根据目标预设阈值配置预先关联的调节参数类型,并根据最新获取到的子光强数据组计算与所述调节参数类型对应的参数信息,包括:当获取到的所述光强数据组的状态信息满足A倍的第一目标预设阈值时,根据第一目标预设阈值确定调节参数类型为灌注指数,并根据最新获取到的子光强数据组计算对应的第二灌注指数;当获取到的所述光强数据组的状态信息满足B倍的第二目标预设阈值时,根据第二目标预设阈值确定调节参数类型为平均光强,并根据最新获取到的子光强数据组计算对应的第二平均光强。
- 根据权利要求4或7所述的方法,其特征在于,所述状态参数为采集 光强数据组的时间,所述第一目标预设阈值为为脉搏波一个周期的时间,所述第二目标预设阈值小于脉搏波一个周期的时间;和/或,所述状态参数为采集光强数据组的个数,所述第二目标预设阈值小于第一目标预设阈值。
- 根据权利要求1所述的方法,其特征在于,所述根据所述参数信息调节所述血氧仪的光发射部件的发光强度,包括:所述根据所述参数信息与预设参数信息的关系,调节所述血氧仪的电流档位。
- 根据权利要求9所述的方法,其特征在于,血氧仪的电流档位包括多个档位,其中,第一档的电流值为:当血氧仪中没有手指时,血氧仪中的光电二极管能接收到的最大光强所需要的电流值,该电流为最小电流;最高档的电流值为:根据预设暗手指放进血氧仪,光电二极管能接收到的最大光强所需要的电流值,该电流值为最大电流;其它档位的电流值为最大电流与最小电流的均分得到。
- 根据权利要求9所述的方法,其特征在于,调节所述血氧仪的电流档位包括增大血氧仪的电流档位以及减少血氧仪的电流档位,每次增大或减小的电流档位的数值为一个档位。
- 根据权利要求4或7所述的方法,其特征在于,所述根据所述参数信息调节所述血氧仪的光发射部件的发光强度,包括:根据所述灌注指数与所述预设灌注指数的关系,调节所述血氧仪的电流档位;和/或,根据所述平均光强与所述预设平均光强的关系,调节所述血氧仪的电流档位。
- 根据权利要求12所述的方法,其特征在于,所述预设灌注指数包括第一预设灌注指数和第二预设灌注指数;所述根据所述灌注指数与所述预设灌注指数的关系,调节所述血氧仪的电 流档位,包括:在所述灌注指数小于所述第一预设灌注指数时,增大所述血氧仪的电流档位;在所述灌注指数大于所述第二预设灌注指数时,减小所述血氧仪的电流档位。
- 根据权利要求12所述的方法,其特征在于,所述预设平均光强包括第一预设平均光强和第二预设平均光强;所述根据所述平均光强与所述预设平均光强的关系,调节所述血氧仪的电流档位,包括:在所述平均光强小于所述第一预设平均光强时,增大所述血氧仪的电流档位;在所述平均光强大于所述第二预设平均光强时,减小所述血氧仪的电流档位。15、根据权利要求9所述的方法,其特征在于,所述方法还包括:通过滑动取值方式获取预设数量的光强数据组;计算光强数据组的平均值;当所述平均值大于第一预设值且电流档位为最低档时,确定手指脱落,输出预警信息。
- 一种血氧仪调节装置,其特征在于,包括:光发射部件、光接收部件和主控模块,所述主控模块与所述光发射部件和所述光接收模块连接;主控模块,用于获取光接收模块接受到的光强数据,形成光强数据组,并根据所述光强数据组对应的状态信息,计算所述光强数据组对应的参数信息,以及根据参数信息调节所述光发射部件的发光强度。
- 一种电子装置,其特征在于,所述装置包括存储器和处理器,所述存储器中存储有计算机程序,所述处理器执行所述计算机程序时,实现如权利要求1至15中任一项所述的方法。
- 一种计算机可读存储介质,其特征在于,所述存储介质存储有计算机 程序,所述计算机程序被执行时,实现如权利要求1至15中任一项所述的方法。
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| CN116616763B (zh) | 2025-04-29 |
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