WO2019228048A1 - Method for determining blood coagulation time, electronic apparatus, and storage medium - Google Patents
Method for determining blood coagulation time, electronic apparatus, and storage medium Download PDFInfo
- Publication number
- WO2019228048A1 WO2019228048A1 PCT/CN2019/080307 CN2019080307W WO2019228048A1 WO 2019228048 A1 WO2019228048 A1 WO 2019228048A1 CN 2019080307 W CN2019080307 W CN 2019080307W WO 2019228048 A1 WO2019228048 A1 WO 2019228048A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- time
- coagulation
- slope
- start time
- time period
- Prior art date
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/48—Biological material, e.g. blood, urine; Haemocytometers
- G01N33/50—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing
- G01N33/86—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing involving blood coagulating time or factors, or their receptors
Definitions
- the present invention relates to the technical field related to blood coagulation testing, in particular to a method for determining blood coagulation time, an electronic device and a storage medium.
- the process by which blood changes from a liquid to a gel-like clot is called a blood coagulation process.
- the coagulation factors in the blood are activated in a certain order, so that fibrinogen in the blood is converted into insoluble fibrin. Fibrin crosslinks into a network, forming a gel-like clot.
- the time of blood clotting is called clotting time, and the length of clotting time is affected by coagulation factors.
- Currently available clotting time measurements include Prothrombin Time (PT), Activated Partial Thromboplastin Time (APTT), Activated Clotting Time (ACT), and Thrombin Time , TT).
- PT Prothrombin Time
- APTT Activated Partial Thromboplastin Time
- ACT Activated Clotting Time
- TT Thrombin Time
- Existing devices and methods for testing blood coagulation based on a microfluidic chip mainly apply a voltage difference to a blood sample in the microfluidic chip, measure an electrical signal of a certain duration, and analyze the measurement result curve to obtain Cumulative characteristics of blood coagulation time-related measurement functions.
- the determination of the coagulation time is based on the area between several points or the calculation of the electrical signal strength. However, due to the influence of noise and other factors, the determination of the coagulation time is not obvious;
- the operation speed is slow. Part of the post-processing process is based on area as the basis of judgment, so the amount of calculation is large, resulting in a slow algorithm and difficult to meet the requirements of real-time systems.
- the invention provides a method for determining a coagulation time, including:
- the coagulation time is determined based on the coagulation start time and the coagulation end time.
- determining the coagulation start time and the coagulation end time based on the blood coagulation characteristic sampling data specifically includes: calculating a corresponding slope for each of the blood coagulation characteristic sampling data based on a search step;
- the coagulation start time and the coagulation end time are determined based on the slope.
- the search step size includes a starting search step size and an end search step size
- the determination of the coagulation start time and the coagulation end time based on the slope specifically includes:
- the coagulation start time is determined based on the starting point search slope, and the coagulation end time is determined based on the end point search slope.
- the end search step size is determined in the following manner:
- a fitting curve that conforms to a preset selection rule is selected from a plurality of the fitting curves as a reference fitting curve, and the number of fitting terms of the reference fitting curve is used as the number of reference fitting terms ;
- the selection rule includes:
- a fitting curve with the largest fitting error is selected as a reference fitting curve
- a fitting curve with the smallest fitting error is selected as a reference fitting curve.
- determining the blood coagulation start time based on the starting search slope specifically includes:
- the sampling time corresponding to the blood coagulation characteristic sampling data with the largest search slope at the starting point is selected as the coagulation start time.
- determining the coagulation end time based on the endpoint search slope specifically includes:
- the start time of the continuous same slope time period or the start time of the negative slope time period is selected as the clotting end time.
- determining the continuous same slope time period based on the endpoint search slope specifically includes:
- the sampling time period corresponding to the blood-coagulation characteristic sampling data with the same end-point search slope is regarded as continuous and the same Slope time period, or
- the sampling time period corresponding to the blood coagulation characteristic sampling data with the end point search slope of zero is taken as the continuous same slope time segment;
- the endpoint search slopes are consistent, specifically: the difference between the endpoint search slopes is within a preset difference threshold.
- selecting the start time of the continuous same slope time period or the start time of the negative slope time period as the clotting end time specifically includes:
- a start time of a continuous same slope time period is selected as the clotting end time.
- the invention provides an electronic device, including:
- At least one processor At least one processor
- a memory connected in communication with the at least one processor; wherein,
- the memory stores instructions executable by the at least one processor, and the instructions are executed by the at least one processor to enable the at least one processor to:
- the coagulation time is determined based on the coagulation start time and the coagulation end time.
- determining the coagulation start time and the coagulation end time based on the blood coagulation characteristic sampling data specifically includes: calculating a corresponding slope for each of the blood coagulation characteristic sampling data based on a search step;
- the coagulation start time and the coagulation end time are determined based on the slope.
- the search step size includes a starting search step size and an end search step size
- the determination of the coagulation start time and the coagulation end time based on the slope specifically includes:
- the coagulation start time is determined based on the starting point search slope, and the coagulation end time is determined based on the end point search slope.
- the end search step size is determined in the following manner:
- a fitting curve that conforms to a preset selection rule is selected from a plurality of the fitting curves as a reference fitting curve, and the number of fitting terms of the reference fitting curve is used as the reference fitting term ;
- the selection rule includes:
- a fitting curve with the largest fitting error is selected as a reference fitting curve
- a fitting curve with the smallest fitting error is selected as a reference fitting curve.
- determining the blood coagulation start time based on the starting search slope specifically includes:
- the sampling time corresponding to the blood coagulation characteristic sampling data with the largest search slope at the starting point is selected as the coagulation start time.
- determining the coagulation end time based on the endpoint search slope specifically includes:
- the start time of the continuous same slope time period or the start time of the negative slope time period is selected as the clotting end time.
- determining the continuous same slope time period based on the endpoint search slope specifically includes:
- the sampling time period corresponding to the blood-coagulation characteristic sampling data with the same end-point search slope is regarded as the same continuously Slope time period, or
- the sampling time period corresponding to the blood coagulation characteristic sampling data with the end point search slope of zero is taken as the continuous same slope time segment;
- the endpoint search slopes are consistent, and specifically, the difference between the endpoint search slopes is within a preset difference threshold range.
- selecting the start time of the continuous same slope time period or the start time of the negative slope time period as the clotting end time specifically includes:
- a start time of a continuous same slope time period is selected as the clotting end time.
- the present invention provides a storage medium that stores computer instructions, and when the computer executes the computer instructions, it is used to perform all steps of the method for determining a coagulation time as described above.
- the invention determines the coagulation time through data analysis, which effectively improves the judgment efficiency of the coagulation time.
- FIG. 1 is a working flowchart of a method for determining a coagulation time according to the present invention
- Figure 2a is a schematic diagram of the sampling data curve of the prothrombin time test
- FIG. 2b is a schematic diagram of a sampling data curve of an activated coagulation time test
- FIG. 2c is a schematic diagram of a sampling data curve of a thromboplastin time test of an activated part
- Figure 2d is a schematic diagram of the sampling data curve of the thrombin time test
- Figure 3 is a schematic diagram of a coagulation curve
- FIG. 4a is a schematic diagram of searching for coagulation start time
- FIG. 4b is a schematic diagram of judging the end time of coagulation according to the continuous same slope time period
- 4c is a schematic diagram of judging an end time of coagulation according to a continuous zero slope time period
- 4d is a schematic diagram of judging an end time of coagulation according to a negative slope time period
- FIG. 5 is a working flowchart of a method for determining a coagulation time according to a preferred embodiment of the present invention
- FIG. 6 is a working flowchart for obtaining a coagulation time based on a continuous slope time and a negative slope time according to a preferred embodiment of the present invention
- FIG. 7 is a schematic diagram of a hardware structure of an electronic device according to the present invention.
- FIG. 8 is a schematic diagram of a system structure according to a preferred embodiment of the present invention.
- FIG. 1 is a working flowchart of a method for determining a coagulation time according to the present invention, including:
- Step S101 obtaining a plurality of blood coagulation characteristic sampling data sampled over time in a coagulation test
- Step S102 Determine a coagulation start time and an coagulation end time based on the blood coagulation characteristic sampling data
- step S103 the coagulation time is determined according to the coagulation start time and the coagulation end time.
- the blood coagulation characteristic sampling data may be a schematic diagram of sampling data curves in tests such as prothrombin time, activated coagulation time, activated partial thromboplastin time, and thrombin time as shown in Figs. 2a to 2d.
- the blood coagulation characteristic sampling data can be obtained through a blood coagulation meter.
- the blood coagulation meter can apply electrical signals to the blood sample and perform sampling at each sampling time to obtain blood coagulation characteristic sampling data.
- the obtained blood coagulation characteristic sampling data can be stored in a file form, for example, in a binary file form.
- a file storing blood coagulation characteristic sampling data can be obtained, and the file is read to obtain a plurality of blood coagulation characteristic sampling data sampled over time.
- the file of blood coagulation characteristic sampling data can be obtained from the real-time blood sample characteristic analysis and recording instrument.
- the real-time blood sample collection device uniformly disperses the collected blood sample into the analysis channel according to the capillary motion characteristics of the blood, and the real-time blood sample characteristic analysis and recording instrument records the coagulation signal by measuring the electrical characteristics of the analysis channel in the real-time blood sample collection device. The electrical characteristics are measured by two electrodes with a distance of 3mm-5mm. A coagulation test reagent is carried between the two electrodes. .
- Step S102 may determine the coagulation start time based on, for example, the first change point of the curve of the blood coagulation characteristic sampling data, the peak of the curve, or a threshold judgment based on experience.
- the determining the coagulation start time and the coagulation end time based on the blood coagulation characteristic sampling data specifically includes: calculating a corresponding slope for each of the blood coagulation characteristic sampling data based on a search step;
- the coagulation start time and the coagulation end time are determined based on the slope. Specifically, a slope calculation may be performed on the obtained blood coagulation characteristic sampling data, and the coagulation start time and the coagulation end time may be determined based on a slope corresponding to each blood coagulation characteristic sampling data.
- the slope can be calculated as follows:
- the current blood coagulation characteristic sampling data is taken as the first blood coagulation characteristic sampling data, and the sampling time corresponding to the first blood coagulation characteristic sampling data is taken as the current sampling time, and the blood coagulation characteristic sampling data here is the electrical characteristic data obtained by the test;
- FIG. 3 illustrates a typical coagulation curve. There are five main stages of the coagulation curve:
- the first stage Before the blood drips into the reagent card, there is no liquid communication between the two electrodes, so it has a large resistance.
- the second stage blood drips into the reagent card, because the plasma fills the reagent tank, resulting in a sharp decrease in the resistance between the two electrodes.
- the third stage the red blood cells in the blood are evenly filled with the reagent card, causing the resistance between the two electrodes to increase.
- the fourth stage The red blood cells at the rear of the reagent tank slowly move to the front of the reagent tank due to capillary action, which causes the resistance between the two electrodes to decrease.
- the fifth stage due to the coagulation waterfall reaction, blood coagulation hinders the red blood cells from moving forward. After this point, the resistance change between the two electrodes is small.
- the slope of the coagulation curve has changed significantly at different stages.
- the slope corresponding to the sampling data of blood coagulation characteristics will change specifically. The change can be used to determine the start time of coagulation .
- the slope corresponding to the blood coagulation characteristic sampling data will also have a specific change, and the change can be used to determine the end of coagulation.
- step S103 the difference between the coagulation end time and the coagulation start time may be used as the coagulation time.
- the search step includes a starting search step and an ending search step
- the determination of the coagulation start time and the coagulation end time based on the slope specifically includes:
- the coagulation start time is determined based on the starting point search slope, and the coagulation end time is determined based on the end point search slope.
- Blood coagulation characteristics sampling data requires data preprocessing.
- Pre-processing includes calculation of step size.
- the step size can also be obtained by a preset value or a comprehensive weighting of the preset value and the curve fitting result.
- different search steps are used for the starting point and the ending, so that different slopes can be used to judge the coagulation start time and the coagulation end time, respectively.
- the starting point search step size can adopt a preset value, preferably two points, that is, the starting point search slope of each blood coagulation characteristic sampling data is preferably (first blood coagulation characteristic sampling data-two points of blood coagulation characteristic sampling data) / 2 .
- the starting search step size is a preset value.
- the end search step size is determined in the following manner:
- a fitting curve that conforms to a preset selection rule is selected from a plurality of the fitting curves as a reference fitting curve, and the number of fitting terms of the reference fitting curve is used as the number of reference fitting terms ;
- the existing polynomial curve fitting method can be used to perform curve fitting on the blood coagulation characteristic sampling data to obtain a fitted curve.
- fitting try different numbers of fitted items, and then determine the number of fitted items according to the selection rule, and calculate the end search step.
- There are multiple methods for obtaining the step size by the number of fitted items. In this embodiment, it is considered that the number of fitted items is proportional to the step size, that is, the end search step size reference fit item number / preset value.
- the selection rule includes:
- a fitting curve with the largest fitting error is selected as a reference fitting curve
- a fitting curve with the smallest fitting error is selected as a reference fitting curve.
- This embodiment uses different numbers of fitting terms as the basis for calculating step sizes for different coagulation tests. For example, for curves with a large amount of data, such as APTT / ACT, the number of fitting terms of the fitting curve with the largest fitting error is used to calculate the endpoint. Search step size, because the number of fitting terms with the largest fitting error can reflect the trend of the curve to a greater extent and eliminate the influence of noise; for curves with a small amount of data, such as TT / PT, the fitting curve with the smallest fitting error is used. The number of combined terms is calculated to obtain the end search step, because the number of fitted terms with the smallest fitting error can retain more details of the curve with a smaller amount of data.
- the determining the coagulation start time based on the starting point search slope specifically includes:
- the sampling time corresponding to the blood coagulation characteristic sampling data with the largest search slope at the starting point is selected as the coagulation start time.
- the main basis of coagulation start time search is the first curve change of the coagulation curve expressed in low-dimensional space.
- the measurement of slope change in low-dimensional space is the most commonly used basis. , Including any other curve change points based on low-dimensional space features.
- the blood coagulation start time is searched to calculate the starting point search slope based on the starting point search step to determine the blood coagulation start time.
- the starting point search step size can adopt a preset value, preferably two points, that is, the starting point search slope of each blood coagulation characteristic sampling data is preferably (first blood coagulation characteristic sampling data-two points of blood coagulation characteristic sampling data) / 2 . It can be seen from FIG.
- the sampling time corresponding to the highest point is the coagulation start time. Therefore, in this embodiment, the sampling time corresponding to the blood coagulation characteristic sampling data with the largest starting point search slope is used as the coagulation start time.
- the determining the coagulation end time based on the endpoint search slope specifically includes:
- the start time of the continuous same slope time period or the start time of the negative slope time period is used as the clotting end time.
- a search for the coagulation end time is performed.
- the coagulation data needs to be extracted once from the high-dimensional space to the low-dimensional space, that is, the coagulation end time is found by analyzing the slope of the low-dimensional space characteristic curve. This includes:
- the peak interference time period can be obtained by using preset values for different coagulation tests or a combination of preset values and the amount of curve data.
- the low-dimensional spatial characteristic curve slope of the blood coagulation characteristic sampling data points is calculated after the starting point of the blood clotting end time search, that is, the end search slope of each blood coagulation characteristic sampling data (the first blood coagulation characteristic Sampling data-blood coagulation characteristic sampling data after step point) / step size.
- Constant data slope When the data change is continuous, but the data slope is constant. This indicates that the data curve is actually in a stable state. This data segment and data point may be the end time of coagulation; 2) Zero data slope: the lowest data change rate is the slowest and lowest point of low-dimensional feature changes, which usually indicates that the data is at this time. The window has not changed.
- Negative data slope the negative slope of the data change in the low-dimensional feature space, which indicates a turning point in data change, which is also the possible clotting end time in practice
- 5) the most obvious data change Point In some actual coagulation data, the most obvious data change point, such as the extreme value of the slope, may indicate the end of coagulation. In this part, you can set the priority of the coagulation end point estimation method according to the empirical value, and you can also set different algorithms to jump out of the strategy. When you find the first coagulation end time with a higher feasibility, you can jump out of the subsequent algorithm processing, so as to achieve Fast real-time requirements.
- the search for the coagulation end time in this embodiment includes the search for continuous slope points and the search for negative slope points.
- the search for continuous slope points includes the search for continuous positive slope points and the search for continuous zero slope points.
- the continuous slope point can be regarded as the end time of coagulation, because the red blood cell movement stops after the coagulation reaction occurs, causing the resistance change to stabilize.
- the negative slope point can be regarded as the end time of coagulation, because fibrin cross-links to form a network structure after coagulation occurs, resulting in an increase in resistance, which is reflected in the slope as a negative slope.
- determining the continuous same slope time period based on the endpoint search slope specifically includes:
- the time period corresponding to the blood-coagulation characteristic sampling data with the same end-point search slope is regarded as the continuous same slope Time period, or
- the time period corresponding to the blood coagulation characteristic sampling data with an end point search slope of zero is taken as the continuous same slope time period ;
- the endpoint search slopes are consistent, and specifically, the difference between the endpoint search slopes is within a preset difference threshold range.
- the parameters are recorded, and continuous point search with the same end point is stopped. If the number of points is less than the threshold of the first number, return to check whether the search slope of the end point of the previous point has a small fluctuation. If there is any, you can ignore the fluctuation and count, and stop the search when the threshold is reached; if not, clear the count and continue searching forward.
- the first number threshold for example: 50
- the second number threshold is used to search for consecutive blood samples with blood coagulation characteristics with a zero slope. Since the blood sample with blood coagulation characteristics with a zero end point search slope can better reflect the end of coagulation, the second number threshold can be less than The first number threshold, preferably, the first number threshold is 50, and the second number threshold is 15.
- the coagulation end time can be obtained by referring to the recorded parameters, the corresponding threshold value and the step size.
- the coagulation end time parameter (recorded parameter-threshold value + step size), and the coagulation end time is the time corresponding to the parameter, that is, the start time of the continuous same slope time period.
- the end time of coagulation is the time corresponding to the recording parameter, that is, the time when the negative slope point appears.
- the selecting a start time of the continuous same slope time period or a start time of the negative slope time period as the clotting end time specifically includes:
- a start time of a continuous same slope time period is selected as the clotting end time.
- the negative slope and the same slope are judged separately to select an appropriate clotting end time. Because the end point search slope has negative blood coagulation characteristics, the sampling data can better reflect the end of coagulation. Therefore, as shown in FIG. 4d, when the negative slope point appears, the parameters appearing are recorded.
- FIG. 5 is a working flowchart of a method for determining a coagulation time according to a preferred embodiment of the present invention, including:
- Step S501 reading a txt file including sampling data of blood coagulation characteristics, and setting parameters;
- step S502 it is checked whether the file is a new file. If so, step S503 is performed; otherwise, the file is numbered, the time is reset, and step S503 is performed;
- Step S503 using a polynomial fitting function to fit the curve, try polynomial fitting with different numbers of terms, find the number of fitting terms with the largest fitting error, and then use this number of terms to calculate the end search step size;
- step S504 the slope of the blood coagulation characteristic sampling data after calculating the blood coagulation characteristic sampling data to two points is used as the starting point search slope, and the point with the largest starting point search slope is the coagulation starting point.
- Step S505 setting parameters, clearing variables to prepare for the next step
- Step S506 adjusting the search start index of the clotting end time by 150 to avoid peak interference
- Step S507 starting at the search index index position at the coagulation end time, calculating the slope of each blood coagulation characteristic sampling data to the blood coagulation characteristic sampling data after a distance from the end search step as the end search slope;
- step S508 if the continuous end point search has the same blood clotting characteristic sampling data and the number reaches 50, then the sampling time of the last end point search blood clotting characteristic sampling data with the same slope is recorded as the continuous slope time, and continuous continuous point search of the same slope is stopped. .
- step S509 if there are consecutive blood coagulation characteristic sampling data with the same end point search slope, but the number is between 5-50, return to check whether there is a small fluctuation in the end point search slope of the previous blood coagulation characteristic sampling data, and if there is, you can ignore the fluctuation. Counting. When the threshold is reached, the last endpoint is recorded. The sampling time of the blood coagulation characteristic sampling data with the same search slope is the end time of the continuous slope. Stop the search. If not, clear the count and continue searching forward.
- step S510 if there is blood coagulation characteristic sampling data with a continuous endpoint search slope of zero and the number reaches 15, the sampling time of the last blood coagulation characteristic sampling data with a zero endpoint search slope of zero is recorded as the continuous slope end time, and the search is stopped. ;
- Step S511 if blood coagulation characteristic sampling data with a negative end search slope appears, record the sampling time of the first blood coagulation characteristic sampling data with a negative end search slope appearing as a negative slope time;
- Step S512 obtaining the coagulation time of each channel based on the start time and the negative slope time of the continuous slope
- step S513 the coagulation time value is determined and the data is checked for errors. For example, the optimal clotting time determined by the above data analysis and screening is estimated to be within the range allowed by experience, then this clotting time will be displayed to the user. However, if the optimal coagulation time estimated through the above data analysis and screening is within the range of abnormal empirical allowable values, the system displays that the estimation fails to the user.
- a working flowchart of coagulation time based on a continuous slope time and a negative slope time includes:
- Step S601 Calculate the negative slope time-coagulation start time. If it is within (100, 300), use the negative slope time as the coagulation end time, and perform step S604, otherwise, perform step S602, where 100 and 300 are the number of data points. , Its applicable data is collected at three points per second, and converted into time of 33 seconds and 100 seconds;
- Step S602 Calculate the continuous slope start time-the coagulation start time. If it is within (100, 300), use the continuous slope time as the coagulation end time, and perform step S604; otherwise, perform step S603;
- Step S603 calculating the continuous slope time-negative slope time, if it is less than or equal to 0, use the negative slope time as the clotting end time, and execute step S604; otherwise, use the continuous slope time as the clotting end time, and execute step S604;
- step S604 the coagulation time is displayed as the coagulation end time-the coagulation start time.
- FIG. 7 is a schematic diagram of a hardware structure of an electronic device 1 according to the present invention, including:
- At least one processor 701 and
- the memory 702 stores instructions executable by the one processor, and the instructions are executed by the at least one processor, so that the at least one processor can:
- the coagulation time is determined based on the coagulation start time and the coagulation end time.
- a processor 702 is taken as an example in FIG. 7.
- the electronic device may further include an input device 703 and an output device 704.
- the processor 701, the memory 702, the input device 703, and the display device 704 may be connected through a bus or other methods. In the figure, connection through a bus is taken as an example.
- the processor 701 may be a general-purpose processor (CPU), a dedicated digital signal processing chip (DSP), or an FPGA.
- CPU general-purpose processor
- DSP dedicated digital signal processing chip
- FPGA field-programmable gate array
- the memory 702 is a non-volatile computer-readable storage medium, and can be used to store non-volatile software programs, non-volatile computer executable programs, and modules, such as programs corresponding to the coagulation time determination method in the embodiment of the present application.
- the instruction / module is, for example, the method flow shown in FIG. 1, FIG. 5, and FIG. 6.
- the processor 701 executes various functional applications and data processing by running the non-volatile software programs, instructions, and modules stored in the memory 702, that is, the coagulation time determination method in the above embodiment is implemented.
- the memory 702 may include a storage program area and a storage data area, where the storage program area may store an operating system and an application program required for at least one function; the storage data area may store data created according to the use of the coagulation time determination method, such as a system Intermediate results of the operation and final coagulation data.
- the memory 702 may include a high-speed random access memory, and may further include a non-volatile memory, such as at least one magnetic disk storage device, a flash memory device, or other non-volatile solid-state storage device.
- the memory 702 may optionally include a memory that is remotely set relative to the processor 701, and these remote memories may be connected to a device that performs a coagulation time determination method through a network. Examples of the above network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.
- the input device 703 can receive input user clicks, and generate signal inputs related to user settings and function control of the coagulation time determination method.
- the display device 704 may include a display device such as a display screen.
- the one or more modules are stored in the memory 702, and when executed by the one or more processors 701, the coagulation time determination method in any of the method embodiments described above is executed.
- the determining the coagulation start time and the coagulation end time based on the blood coagulation characteristic sampling data specifically includes: calculating a corresponding slope for each of the blood coagulation characteristic sampling data based on a search step;
- the coagulation start time and the coagulation end time are determined based on the slope.
- the search step includes a starting search step and an ending search step
- the determination of the coagulation start time and the coagulation end time based on the slope specifically includes:
- the coagulation start time is determined based on the starting point search slope, and the coagulation end time is determined based on the end point search slope.
- the starting search step size is a preset value.
- the end search step size is determined in the following manner:
- a fitting curve that conforms to a preset selection rule is selected from a plurality of the fitting curves as a reference fitting curve, and the number of fitting terms of the reference fitting curve is used as the number of reference fitting terms ;
- the selection rule includes:
- a fitting curve with the largest fitting error is selected as a reference fitting curve
- a fitting curve with the smallest fitting error is selected as a reference fitting curve.
- the determining the coagulation start time based on the starting point search slope specifically includes:
- the sampling time corresponding to the blood coagulation characteristic sampling data with the largest search slope at the starting point is selected as the coagulation start time.
- the determining the coagulation end time based on the endpoint search slope specifically includes:
- the start time of the continuous same slope time period or the start time of the negative slope time period is selected as the clotting end time.
- determining the continuous same slope time period based on the endpoint search slope specifically includes:
- the sampling time period corresponding to the blood-coagulation characteristic sampling data with the same end-point search slope is regarded as continuous and the same Slope time period, or
- the sampling time period corresponding to the blood coagulation characteristic sampling data with the end point search slope of zero is taken as the continuous same slope time segment;
- the endpoint search slopes are consistent, and specifically, the difference between the endpoint search slopes is within a preset difference threshold range.
- the selecting a start time of the continuous same slope time period or a start time of the negative slope time period as the clotting end time specifically includes:
- a start time of a continuous same slope time period is selected as the clotting end time.
- FIG. 8 shows a schematic architecture of a system for collecting and processing coagulation data from a real-time blood collection device.
- the system includes an electronic device 1 as shown in FIG. 7 and a real-time blood data characteristic analysis recorder 2 that can record coagulation process data.
- This analysis recorder can also be an offline data recording instrument, and the system is powered by a mobile or fixed power source 6.
- the system shown in FIG. 8 can implement a real-time parallel historical data analysis module 3, which is used to improve the performance of real-time coagulation estimation of a specific sample.
- the parallel historical data analysis module can be the historical data of the same patient, or it can be based on the historical data of a large sample of the same patient group.
- the system shown in FIG. 8 can implement a wireless Internet of Things communication module 4 to perform local local area network communication with other similar devices to implement large-scale coagulation estimation analysis of big data.
- the data transmitted by this wireless IoT communication module can be input to the real-time parallel historical data analysis module for its comprehensive analysis.
- the wireless IoT communication module can also access the meta-computing or cloud storage platform of the wide area network, and perform background analysis from these cloud resources.
- the system shown in FIG. 8 can be implemented to connect a printing device 5 to print real-time intermediate data and any coagulation data.
- the same design can use a display to show real-time intermediate data and any coagulation data.
- the present invention provides a storage medium that stores computer instructions, and when the computer executes the computer instructions, it is used to perform all steps of the method for determining a coagulation time as described above.
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hematology (AREA)
- Engineering & Computer Science (AREA)
- Molecular Biology (AREA)
- Biomedical Technology (AREA)
- Chemical & Material Sciences (AREA)
- Immunology (AREA)
- Urology & Nephrology (AREA)
- Biotechnology (AREA)
- Microbiology (AREA)
- Cell Biology (AREA)
- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Pathology (AREA)
- Investigating Or Analysing Biological Materials (AREA)
Abstract
Description
Claims (19)
- 一种凝血时间判定方法,其特征在于,包括:A method for determining a coagulation time, comprising:获取凝血测试中随时间采样的多个血液凝固特性采样数据;Obtain multiple blood coagulation characteristics sampling data sampled over time in a coagulation test;基于所述血液凝固特性采样数据确定凝血开始时间和凝血结束时间;Determining the coagulation start time and the coagulation end time based on the blood coagulation characteristic sampling data;根据凝血开始时间和凝血结束时间确定凝血时间。The coagulation time is determined based on the coagulation start time and the coagulation end time.
- 根据权利要求1所述的凝血时间判定方法,其特征在于,所述基于所述血液凝固特性采样数据确定凝血开始时间和凝血结束时间,具体包括:基于搜索步长对每个所述血液凝固特性采样数据计算对应的斜率;The method for determining a coagulation time according to claim 1, wherein the determining the coagulation start time and the coagulation end time based on the blood coagulation characteristic sampling data specifically comprises: based on a search step for each of the blood coagulation characteristics Sampling data to calculate the corresponding slope;基于所述斜率确定凝血开始时间和凝血结束时间。The coagulation start time and the coagulation end time are determined based on the slope.
- 根据权利要求2所述的凝血时间判定方法,其特征在于,所述搜索步长包括起点搜索步长、以及终点搜索步长;The method for determining a coagulation time according to claim 2, wherein the search step size includes a start point search step size and an end point search step size;所述基于搜索步长对每个所述血液凝固特性采样数据计算对应的斜率,具体包括:The step of calculating a corresponding slope for each of the blood coagulation characteristic sampling data based on the search step specifically includes:基于所述起点搜索步长对每个所述血液凝固特性采样数据计算对应的起点搜索斜率,基于所述终点搜索步长对每个所述血液凝固特性采样数据计算对应的终点搜索斜率;Calculating a corresponding starting point search slope for each of the blood coagulation characteristic sampling data based on the starting point search step size, and calculating a corresponding ending point search slope for each of the blood coagulation characteristic sampling data based on the starting point search step size;基于所述斜率确定凝血开始时间和凝血结束时间,具体包括:The determination of the coagulation start time and the coagulation end time based on the slope specifically includes:基于所述起点搜索斜率确定凝血开始时间,基于所述终点搜索斜率确定凝血结束时间。The coagulation start time is determined based on the starting point search slope, and the coagulation end time is determined based on the end point search slope.
- 根据权利要求3所述的凝血时间判定方法,其特征在于,所述终点搜索步长采用如下方式确定:The method for determining a coagulation time according to claim 3, wherein the step length of the end point search is determined in the following manner:使用多个拟合项数对所述血液凝固特性采样数据进行多次多项式曲线拟合得到多个以拟合项数为参数的拟合曲线;Performing a plurality of polynomial curve fittings on the blood coagulation characteristic sampling data by using a plurality of fitting terms to obtain a plurality of fitting curves with the fitting terms as parameters;根据所述凝血测试类型,从多个所述拟合曲线中选择符合预设选择规则的拟合曲线作为参考拟合曲线,将所述参考拟合曲线的拟合项数作为参考拟合项数;According to the type of coagulation test, a fitting curve that conforms to a preset selection rule is selected from a plurality of the fitting curves as a reference fitting curve, and the number of fitting terms of the reference fitting curve is used as the number of reference fitting terms ;根据所述参考拟合项数计算所述终点搜索步长。Calculate the end search step size according to the number of reference fitting terms.
- 根据权利要求4所述的凝血时间判定方法,其特征在于,所述选择规则包括:The method for determining a coagulation time according to claim 4, wherein the selection rule comprises:如果所述凝血测试类型为活化部分凝血活酶时间测试、或活化凝血时间测试,则选择拟合误差最大的拟合曲线作为参考拟合曲线;If the type of coagulation test is an activated partial thromboplastin time test or an activated coagulation time test, a fitting curve with the largest fitting error is selected as a reference fitting curve;如果所述凝血测试类型为凝血酶时间测试、或凝血酶原时间测试,则选择拟合误差最小的拟合曲线作为参考拟合曲线。If the type of the blood coagulation test is a thrombin time test or a prothrombin time test, a fitting curve with the smallest fitting error is selected as a reference fitting curve.
- 根据权利要求3所述的凝血时间判定方法,其特征在于,所述基于所述起点搜索斜率确定凝血开始时间,具体包括:The method for determining a coagulation time according to claim 3, wherein the determining the coagulation start time based on the starting point search slope specifically comprises:选择起点搜索斜率最大的血液凝固特性采样数据对应的采样时间作为凝血开始时间。The sampling time corresponding to the blood coagulation characteristic sampling data with the largest search slope at the starting point is selected as the coagulation start time.
- 根据权利要求3所述的凝血时间判定方法,其特征在于,所述基于所述终点搜索斜率确定凝血结束时间,具体包括:The method for determining a coagulation time according to claim 3, wherein the determining the coagulation end time based on the endpoint search slope specifically comprises:在所述凝血开始时间之后预设峰干扰时间段后,基于所述终点搜索斜率确定连续相同斜率时间段、或负斜率时间段;After presetting a peak interference time period after the coagulation start time, determining a continuous same slope time period or a negative slope time period based on the endpoint search slope;选择所述连续相同斜率时间段的起始时间、或所述负斜率时间段的起始时间作为所述凝血结束时间。The start time of the continuous same slope time period or the start time of the negative slope time period is selected as the clotting end time.
- 根据权利要求7所述的凝血时间判定方法,其特征在于,所述基于所述终点搜索斜率确定连续相同斜率时间段,具体包括:The method for determining a coagulation time according to claim 7, wherein determining the continuous same slope time period based on the endpoint search slope specifically comprises:如果有连续多个终点搜索斜率一致且为正斜率的血液凝固特性采样数据,且数量达到预设第一数量阈值,则将终点搜索斜率一致的血液凝固特性采样数据对应的采样时间段作为连续相同斜率时间段,或者;If there are multiple consecutive blood-coagulation characteristic sampling data with the same end point search slope and a positive slope, and the number reaches a preset first number threshold, the sampling time period corresponding to the blood-coagulation characteristic sampling data with the same end-point search slope is regarded as continuous and the same Slope time period, or如果有连续多个终点搜索斜率为零的血液凝固特性采样数据,且数量达到预设第二数量阈值,则将终点搜索斜率为零的血液凝固特性采样数据对应的采样时间段作为连续相同斜率时间段;If there are multiple consecutive blood coagulation characteristic sampling data with the end point search slope of zero, and the number reaches a preset second number threshold, the sampling time period corresponding to the blood coagulation characteristic sampling data with the end point search slope of zero is taken as the continuous same slope time segment;其中,所述终点搜索斜率一致,具体为:终点搜索斜率的差值在预设差值阈值范围内。Wherein, the endpoint search slopes are consistent, and specifically, the difference between the endpoint search slopes is within a preset difference threshold range.
- 根据权利要求7所述的凝血时间判定方法,其特征在于,所述选择所述连续相同斜率时间段的起始时间、或所述负斜率时间段 的起始时间作为所述凝血结束时间,具体包括:The method for determining a coagulation time according to claim 7, characterized in that said selecting a start time of said continuous same slope time period or a start time of said negative slope time period as said coagulation end time, specifically include:计算所述负斜率时间段的起始时间与所述凝血起始时间的第一差值,如果所述第一差值在预设第一时间范围内,则选择负斜率时间段的起始时间作为所述凝血结束时间,否则;Calculate a first difference between the start time of the negative slope time period and the coagulation start time, and if the first difference is within a preset first time range, select the start time of the negative slope time period As the clotting end time, otherwise;计算所述连续相同斜率时间段的起始时间与所述凝血起始时间的第二差值,如果所述第二差值在预设第二时间范围外,且所述连续相同斜率时间段的起始时间小于所述负斜率时间段的起始时间,则选择负斜率时间段的起始时间作为所述凝血结束时间,如果所述第二差值在预设第二时间范围外,且所述连续相同斜率时间段的起始时间大于所述负斜率时间段的起始时间,则选择连续相同斜率时间段的起始时间作为所述凝血结束时间,否则;Calculate a second difference between the start time of the continuous same slope time period and the coagulation start time, if the second difference is outside a preset second time range, and the If the start time is less than the start time of the negative slope time period, the start time of the negative slope time period is selected as the clotting end time. If the second difference value is outside a preset second time range, and The start time of the continuous same slope time period is greater than the start time of the negative slope time period, then the start time of the continuous same slope time period is selected as the clotting end time, otherwise;如果所述第二差值在预设第二时间范围内,则选择连续相同斜率时间段的起始时间作为所述凝血结束时间。If the second difference value is within a preset second time range, a start time of a continuous same slope time period is selected as the clotting end time.
- 一种电子设备,其特征在于,包括:An electronic device, comprising:至少一个处理器;以及,At least one processor; and与所述至少一个处理器通信连接的存储器;其中,A memory connected in communication with the at least one processor; wherein,所述存储器存储有可被所述至少一个处理器执行的指令,所述指令被所述至少一个处理器执行,以使所述至少一个处理器能够:The memory stores instructions executable by the at least one processor, and the instructions are executed by the at least one processor to enable the at least one processor to:获取凝血测试中随时间采样的多个血液凝固特性采样数据;Obtain multiple blood coagulation characteristics sampling data sampled over time in a coagulation test;基于所述血液凝固特性采样数据确定凝血开始时间和凝血结束时间;Determining the coagulation start time and the coagulation end time based on the blood coagulation characteristic sampling data;根据凝血开始时间和凝血结束时间确定凝血时间。The coagulation time is determined based on the coagulation start time and the coagulation end time.
- 根据权利要求10所述的电子设备,其特征在于,所述基于所述血液凝固特性采样数据确定凝血开始时间和凝血结束时间,具体包括:基于搜索步长对每个所述血液凝固特性采样数据计算对应的斜率;The electronic device according to claim 10, wherein the determining the coagulation start time and the coagulation end time based on the blood coagulation characteristic sampling data specifically comprises: sampling data for each of the blood coagulation characteristics based on a search step. Calculate the corresponding slope;基于所述斜率确定凝血开始时间和凝血结束时间。The coagulation start time and the coagulation end time are determined based on the slope.
- 根据权利要求10所述的电子设备,其特征在于,所述搜索步长包括起点搜索步长、以及终点搜索步长;The electronic device according to claim 10, wherein the search step size includes a start search step size and an end search step size;所述基于搜索步长对每个所述血液凝固特性采样数据计算对应 的斜率,具体包括:The step of calculating a corresponding slope for each of the blood coagulation characteristic sampling data based on the search step includes:基于所述起点搜索步长对每个所述血液凝固特性采样数据计算对应的起点搜索斜率,基于所述终点搜索步长对每个所述血液凝固特性采样数据计算对应的终点搜索斜率;Calculating a corresponding starting point search slope for each of the blood coagulation characteristic sampling data based on the starting point search step size, and calculating a corresponding ending point search slope for each of the blood coagulation characteristic sampling data based on the starting point search step size;基于所述斜率确定凝血开始时间和凝血结束时间,具体包括:The determination of the coagulation start time and the coagulation end time based on the slope specifically includes:基于所述起点搜索斜率确定凝血开始时间,基于所述终点搜索斜率确定凝血结束时间。The coagulation start time is determined based on the starting point search slope, and the coagulation end time is determined based on the end point search slope.
- 根据权利要求12所述的电子设备,其特征在于,所述终点搜索步长采用如下方式确定:The electronic device according to claim 12, wherein the end search step size is determined in the following manner:使用多个拟合项数对所述血液凝固特性采样数据进行多次多项式曲线拟合得到多个以拟合项数为参数的拟合曲线;Performing a plurality of polynomial curve fittings on the blood coagulation characteristic sampling data by using a plurality of fitting terms to obtain a plurality of fitting curves with the fitting terms as parameters;根据所述凝血测试类型,从多个所述拟合曲线中选择符合预设选择规则的拟合曲线作为参考拟合曲线,将所述参考拟合曲线的拟合项数作为参考拟合项数;According to the type of coagulation test, a fitting curve that conforms to a preset selection rule is selected from a plurality of the fitting curves as a reference fitting curve, and the number of fitting terms of the reference fitting curve is used as the number of reference fitting terms ;根据所述参考拟合项数计算所述终点搜索步长。Calculate the end search step size according to the number of reference fitting terms.
- 根据权利要求13所述的电子设备,其特征在于,所述选择规则包括:The electronic device according to claim 13, wherein the selection rule comprises:如果所述凝血测试类型为活化部分凝血活酶时间测试、或活化凝血时间测试,则选择拟合误差最大的拟合曲线作为参考拟合曲线;If the type of coagulation test is an activated partial thromboplastin time test or an activated coagulation time test, a fitting curve with the largest fitting error is selected as a reference fitting curve;如果所述凝血测试类型为凝血酶时间测试、或凝血酶原时间测试,则选择拟合误差最小的拟合曲线作为参考拟合曲线。If the type of the blood coagulation test is a thrombin time test or a prothrombin time test, a fitting curve with the smallest fitting error is selected as a reference fitting curve.
- 根据权利要求12所述的电子设备,其特征在于,所述基于所述起点搜索斜率确定凝血开始时间,具体包括:The electronic device according to claim 12, wherein the determining the blood coagulation start time based on the starting point search slope specifically comprises:选择起点搜索斜率最大的血液凝固特性采样数据对应的采样时间作为凝血开始时间。The sampling time corresponding to the blood coagulation characteristic sampling data with the largest search slope at the starting point is selected as the coagulation start time.
- 根据权利要求12所述的电子设备,其特征在于,所述基于所述终点搜索斜率确定凝血结束时间,具体包括:The electronic device according to claim 12, wherein the determining the coagulation end time based on the endpoint search slope specifically comprises:在所述凝血开始时间之后预设峰干扰时间段后,基于所述终点搜索斜率确定连续相同斜率时间段、或负斜率时间段;After presetting a peak interference time period after the coagulation start time, determining a continuous same slope time period or a negative slope time period based on the endpoint search slope;选择所述连续相同斜率时间段的起始时间、或所述负斜率时间段的起始时间作为所述凝血结束时间。The start time of the continuous same slope time period or the start time of the negative slope time period is selected as the clotting end time.
- 根据权利要求16所述的电子设备,其特征在于,所述基于所述终点搜索斜率确定连续相同斜率时间段,具体包括:The electronic device according to claim 16, wherein the determining the continuous same slope time period based on the endpoint search slope specifically comprises:如果有连续多个终点搜索斜率一致且为正斜率的血液凝固特性采样数据,且数量达到预设第一数量阈值,则将终点搜索斜率一致的血液凝固特性采样数据对应的采样时间段作为连续相同斜率时间段,或者;If there are multiple consecutive blood-coagulation characteristic sampling data with the same end point search slope and a positive slope, and the number reaches a preset first number threshold, the sampling time period corresponding to the blood-coagulation characteristic sampling data with the same end-point search slope is regarded as continuous and the same Slope time period, or如果有连续多个终点搜索斜率为零的血液凝固特性采样数据,且数量达到预设第二数量阈值,则将终点搜索斜率为零的血液凝固特性采样数据对应的采样时间段作为连续相同斜率时间段;If there are multiple consecutive blood coagulation characteristic sampling data with the end point search slope of zero, and the number reaches a preset second number threshold, the sampling time period corresponding to the blood coagulation characteristic sampling data with the end point search slope of zero is taken as the continuous same slope time segment;其中,所述终点搜索斜率一致,具体为:终点搜索斜率的差值在预设差值阈值范围内。Wherein, the endpoint search slopes are consistent, and specifically, the difference between the endpoint search slopes is within a preset difference threshold range.
- 根据权利要求16所述的电子设备,其特征在于,所述选择所述连续相同斜率时间段的起始时间、或所述负斜率时间段的起始时间作为所述凝血结束时间,具体包括:The electronic device according to claim 16, wherein the selecting a start time of the continuous same slope time period or a start time of the negative slope time period as the clotting end time specifically comprises:计算所述负斜率时间段的起始时间与所述凝血起始时间的第一差值,如果所述第一差值在预设第一时间范围内,则选择负斜率时间段的起始时间作为所述凝血结束时间,否则;Calculate a first difference between the start time of the negative slope time period and the coagulation start time, and if the first difference is within a preset first time range, select the start time of the negative slope time period As the clotting end time, otherwise;计算所述连续相同斜率时间段的起始时间与所述凝血起始时间的第二差值,如果所述第二差值在预设第二时间范围外,且所述连续相同斜率时间段的起始时间小于所述负斜率时间段的起始时间,则选择负斜率时间段的起始时间作为所述凝血结束时间,如果所述第二差值在预设第二时间范围外,且所述连续相同斜率时间段的起始时间大于所述负斜率时间段的起始时间,则选择连续相同斜率时间段的起始时间作为所述凝血结束时间,否则;Calculate a second difference between the start time of the continuous same slope time period and the coagulation start time, if the second difference is outside a preset second time range, and the If the start time is less than the start time of the negative slope time period, the start time of the negative slope time period is selected as the clotting end time. If the second difference value is outside a preset second time range, and The start time of the continuous same slope time period is greater than the start time of the negative slope time period, then the start time of the continuous same slope time period is selected as the clotting end time, otherwise;如果所述第二差值在预设第二时间范围内,则选择连续相同斜率时间段的起始时间作为所述凝血结束时间。If the second difference value is within a preset second time range, a start time of a continuous same slope time period is selected as the clotting end time.
- 一种存储介质,其特征在于,所述存储介质存储计算机指令,当计算机执行所述计算机指令时,用于执行如权利要求1~9任 一项所述的凝血时间判定方法的所有步骤。A storage medium, wherein the storage medium stores computer instructions, and when the computer executes the computer instructions, the storage medium is configured to execute all steps of the coagulation time determination method according to any one of claims 1 to 9.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201810554622.7A CN108761105B (en) | 2018-06-01 | 2018-06-01 | Blood coagulation time determination method, electronic device, and storage medium |
CN201810554622.7 | 2018-06-01 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2019228048A1 true WO2019228048A1 (en) | 2019-12-05 |
Family
ID=64001785
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CN2019/080307 WO2019228048A1 (en) | 2018-06-01 | 2019-03-29 | Method for determining blood coagulation time, electronic apparatus, and storage medium |
Country Status (2)
Country | Link |
---|---|
CN (1) | CN108761105B (en) |
WO (1) | WO2019228048A1 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108761105B (en) * | 2018-06-01 | 2020-12-01 | 广州万孚生物技术股份有限公司 | Blood coagulation time determination method, electronic device, and storage medium |
CN110967306B (en) * | 2019-11-14 | 2023-11-24 | 迈克医疗电子有限公司 | Method and device for determining the start time of a reaction, analytical instrument and storage medium |
CN112161955A (en) * | 2020-07-22 | 2021-01-01 | 三诺生物传感股份有限公司 | Testing method for four blood coagulation items |
CN113343899B (en) * | 2021-06-19 | 2022-10-14 | 南京岚煜生物科技有限公司 | Method for determining coagulation mutation point based on slope detection |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104034672A (en) * | 2013-03-06 | 2014-09-10 | 希森美康株式会社 | Blood coagulation analyzer and blood coagulation analyzing method |
CN105008906A (en) * | 2013-03-13 | 2015-10-28 | 索尼公司 | Device for analyzing condition of blood, system for analyzing condition of blood, and program for analyzing condition of blood |
CN107107057A (en) * | 2014-09-26 | 2017-08-29 | 雅培医护站股份有限公司 | The cartridge device identification determined for the condensation in fluid sample |
CN108761105A (en) * | 2018-06-01 | 2018-11-06 | 广州万孚生物技术股份有限公司 | Clotting time determination method, electronic equipment and storage medium |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7837941B2 (en) * | 2006-04-07 | 2010-11-23 | Agamatrix, Inc. | Method and apparatus for monitoring alteration of flow characteristics in a liquid sample |
JP5982976B2 (en) * | 2012-04-13 | 2016-08-31 | ソニー株式会社 | Blood coagulation system analyzer, blood coagulation system analysis method and program thereof |
US9551699B2 (en) * | 2012-07-16 | 2017-01-24 | Micropoint Bioscience, Inc. | Testing of blood coagulation characteristics |
-
2018
- 2018-06-01 CN CN201810554622.7A patent/CN108761105B/en active Active
-
2019
- 2019-03-29 WO PCT/CN2019/080307 patent/WO2019228048A1/en active Application Filing
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104034672A (en) * | 2013-03-06 | 2014-09-10 | 希森美康株式会社 | Blood coagulation analyzer and blood coagulation analyzing method |
CN105008906A (en) * | 2013-03-13 | 2015-10-28 | 索尼公司 | Device for analyzing condition of blood, system for analyzing condition of blood, and program for analyzing condition of blood |
CN107107057A (en) * | 2014-09-26 | 2017-08-29 | 雅培医护站股份有限公司 | The cartridge device identification determined for the condensation in fluid sample |
CN108761105A (en) * | 2018-06-01 | 2018-11-06 | 广州万孚生物技术股份有限公司 | Clotting time determination method, electronic equipment and storage medium |
Also Published As
Publication number | Publication date |
---|---|
CN108761105B (en) | 2020-12-01 |
CN108761105A (en) | 2018-11-06 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2019228048A1 (en) | Method for determining blood coagulation time, electronic apparatus, and storage medium | |
CN109239360B (en) | Reaction curve abnormity detection method and device | |
CN103989462B (en) | The extracting method of a kind of pulse wave fisrt feature point and second feature point | |
US9166895B1 (en) | Detecting process execution state change using measurement of resource consumption | |
WO2017113875A1 (en) | Temperature prediction method and system thereof | |
CN106598822B (en) | A kind of abnormal deviation data examination method and device for Capacity Assessment | |
WO2013025909A1 (en) | Extrapolation of interpolated sensor data to increase sample throughput | |
JP2016186504A (en) | Extrapolation of interpolated sensor data to increase sample throughput | |
CN104749086A (en) | Multi-reference-channel pulse recognition method and device, and particle analyzer | |
CN104002019B (en) | Welding material evaluation on machinability method based on electric arc chaotic characteristic optimization algorithm | |
CN114623939A (en) | Method, device, equipment and medium for determining pulse frequency | |
JP2014211393A (en) | Peak detection device | |
CN109374686B (en) | Gas sensor | |
US9021308B2 (en) | Analyzing a process of software defects handling using percentile-based metrics | |
CN109815260B (en) | Waveform display device, waveform parameter statistical method, terminal device and storage medium | |
CN106326098A (en) | Method and device for testing page perceived performance | |
CN108109675B (en) | Laboratory quality control data management system | |
CN111474293B (en) | Method and system for determining bacterial wilt solution | |
CN112912712B (en) | Method for measuring sample absorbance difference, sample analyzer, and storage medium | |
WO2019000324A1 (en) | Blood detection method and device | |
JP2007248467A (en) | Method and system for dynamically adjusting ion-monitoring period | |
CN111209949A (en) | Similarity determination method and device for sample density distribution, electronic device and storage medium | |
CN108595516A (en) | Electric energy meter error method for analyzing stability, device, storage medium and equipment | |
CN116720067B (en) | Mass spectrogram global peak information feature description method and device based on oscillation signals | |
CN116593579B (en) | Method for estimating concentration of urea solution for vehicle |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 19810824 Country of ref document: EP Kind code of ref document: A1 |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 19810824 Country of ref document: EP Kind code of ref document: A1 |
|
32PN | Ep: public notification in the ep bulletin as address of the adressee cannot be established |
Free format text: NOTING OF LOSS OF RIGHTS PURSUANT TO RULE 112(1) EPC (EPO FORM 1205A DATED 08/07/2021) |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 19810824 Country of ref document: EP Kind code of ref document: A1 |