Blood monitoring device and blood monitoring method for traumatic shock

Abstract

The embodiments of the present application provide a blood monitoring device and a blood monitoring method for traumatic shock, wherein the device comprises: a first detection module, configured to obtain a common carotid artery velocity time integral and a heart rate by detecting carotid artery blood flow; a second detection module, configured to obtain a blood oxygen saturation by detecting the blood oxygen status of the arterial blood flow; a processing module, configured to determine a carotid artery oxygen delivery reflecting the oxygen supply capacity of the carotid artery to the head according to the common carotid artery velocity time integral, the heart rate, the blood oxygen saturation, the common carotid artery area and the hemoglobin value in the blood; in this way, the detection of multiple parameters is achieved, and it is beneficial to quickly obtain the status and changes of the patient's brain oxygen supply and systemic oxygen supply, comprehensively consider the patient's compensatory capacity, thereby judging the patient's overall risk and reducing the probability of the patient suffering from hemorrhagic shock.

Description

Technical Field

[0001] The invention relates to the field of medical detection, and in particular to a blood monitoring device and a blood monitoring method for traumatic shock. Background Art

[0002] With the rapid development of the transportation industry, traffic accidents occur more and more frequently. A considerable proportion of traffic accident patients visiting the emergency department are critically ill patients. Monitoring the physiological state of critically ill patients and assessing the probability of hemorrhagic shock in critically ill patients are of great significance for the treatment of patients.

[0003] Traumatic shock is a common clinical critical illness, which is mainly manifested by a sharp decrease in the body's effective circulating blood volume and circulatory dysfunction caused by the inability of the body's tissue blood perfusion to meet the body's needs. It is particularly important to fully and accurately obtain the patient's various physiological parameters and quickly and intuitively grasp the key clinical data in the race against time to treat critically ill patients. How to judge the patient's overall risk and reduce the probability of hemorrhagic shock in patients is an important issue that technicians in this field have always been committed to solving. Summary of the invention

[0004] In view of this, the embodiments of the present application provide a blood monitoring device and a blood monitoring method for traumatic shock in order to solve at least one problem existing in the background technology.

[0005] In a first aspect, an embodiment of the present application provides a blood monitoring device for traumatic shock, comprising:

[0006] A first detection module is configured to obtain a time integral of a common carotid artery velocity and a heart rate by detecting a carotid artery blood flow;

[0007] A second detection module is configured to obtain blood oxygen saturation by detecting the blood oxygen state of arterial blood flow;

[0008] The processing module is configured to determine the carotid artery oxygen delivery reflecting the oxygen supply capacity of the carotid artery to the head according to the time integral of the common carotid artery velocity, the heart rate, the blood oxygen saturation, the common carotid artery area and the hemoglobin value in the blood.

[0009] In conjunction with the first aspect of the present application, in an optional embodiment, the carotid artery oxygen delivery is calculated using the following formula:

[0010] caDO2=k*SPO2*Hb*cVTi*S*HR;

[0011] Among them, caDO2 represents carotid artery oxygen delivery, k is equal to 1.34, SPO2 represents blood oxygen saturation, Hb represents hemoglobin value in blood, cVTi represents common carotid artery velocity time integral, S represents common carotid artery area, and HR represents heart rate.

[0012] In conjunction with the first aspect of the present application, in an optional implementation, the common carotid artery area is obtained based on the first detection module; or, the device further includes a storage module, and the common carotid artery area is obtained based on the storage module;

[0013] Corresponding to the common carotid artery area being obtained based on the first detection module, the first detection module is further configured to detect the common carotid artery diameter, and the processing module is further configured to obtain the common carotid artery diameter detected by the first detection module and determine the common carotid artery area according to the common carotid artery diameter;

[0014] The common carotid artery area is obtained based on the storage module, and the storage module pre-stores the corresponding relationship data between the common carotid artery area and the height and weight. The processing module is also configured to obtain the common carotid artery area corresponding to the patient's height and weight stored in the storage module.

[0015] In combination with the first aspect of the present application, in an optional embodiment, the processing module is also configured to determine whether a third detection module for detecting the hemoglobin value in the blood is connected to the device, and if so, obtain the hemoglobin value in the blood based on the third detection module; if not, obtain the hemoglobin value in the blood based on the user's input operation.

[0016] In conjunction with the first aspect of the present application, in an optional embodiment, the processing module is further configured to determine a common carotid shock index according to the common carotid velocity time integral and the heart rate and / or determine a common carotid systolic shock index according to the common carotid systolic velocity time integral and the heart rate;

[0017] Wherein, the processing module is also configured to determine the common carotid artery systolic shock index according to the common carotid artery systolic velocity time integral and the heart rate, and the first detection module is also configured to obtain the common carotid artery systolic velocity time integral by detecting the carotid artery blood flow.

[0018] In conjunction with the first aspect of the present application, in an optional implementation manner, the common carotid artery shock index is calculated using the following formula:

[0019] caSI = HR / cVTi;

[0020] Wherein, caSI denotes common carotid shock index, HR denotes heart rate, and cVTi denotes common carotid velocity time integral;

[0021] The common carotid artery systolic shock index is calculated using the following formula:

[0022] caSIs = HR / scVTi;

[0023] Wherein, caSIs denotes common carotid systolic shock index, HR denotes heart rate, and scVTi denotes common carotid systolic velocity time integral.

[0024] In combination with the first aspect of the present application, in an optional embodiment, the processing module is further configured to determine information for controlling the operation of an infusion pump and / or an oxygen supply device based on the carotid artery oxygen delivery.

[0025] In a second aspect, an embodiment of the present application provides a blood monitoring method, which is applied to a blood monitoring device for traumatic shock, and the method comprises:

[0026] Detecting carotid blood flow based on the first detection module to obtain common carotid artery velocity time integral and heart rate;

[0027] Detecting the blood oxygen state of arterial blood flow based on the second detection module to obtain blood oxygen saturation;

[0028] The common carotid artery area and hemoglobin value in the blood were obtained;

[0029] The carotid artery oxygen delivery reflecting the oxygen supply capacity of the carotid artery to the head is determined according to the time integral of the common carotid artery velocity, the heart rate, the blood oxygen saturation, the common carotid artery area and the hemoglobin value in the blood.

[0030] In conjunction with the second aspect of the present application, in an optional embodiment, the carotid artery oxygen delivery is calculated using the following formula:

[0031] caDO2=k*SPO2*Hb*cVTi*S*HR;

[0032] Among them, caDO2 represents carotid artery oxygen delivery, k is equal to 1.34, SPO2 represents blood oxygen saturation, Hb represents hemoglobin value in blood, cVTi represents common carotid artery velocity time integral, S represents common carotid artery area, and HR represents heart rate.

[0033] In conjunction with the second aspect of the present application, in an optional implementation, obtaining the common carotid artery area includes:

[0034] Detecting the carotid blood flow based on the first detection module to obtain the common carotid artery diameter, and determining the common carotid artery area according to the common carotid artery diameter; or,

[0035] The common carotid artery area corresponding to the patient's height and weight is obtained according to the pre-stored correspondence data between the common carotid artery area and the height and weight.

[0036] In conjunction with the second aspect of the present application, in an optional implementation manner, obtaining the hemoglobin value in the blood includes:

[0037] Determine whether the blood monitoring device for traumatic shock is connected to a third detection module for detecting the hemoglobin value in the blood. If so, obtain the hemoglobin value in the blood based on the third detection module; if not, obtain the hemoglobin value in the blood based on the user's input operation.

[0038] In conjunction with the second aspect of the present application, in an optional implementation manner, the method further includes:

[0039] determining a common carotid shock index according to the common carotid velocity time integral and the heart rate; and / or,

[0040] Based on the first detection module, the carotid blood flow is detected to obtain the common carotid systolic velocity time integral; and the common carotid systolic shock index is determined according to the common carotid systolic velocity time integral and the heart rate.

[0041] In conjunction with the second aspect of the present application, in an optional implementation, the common carotid artery shock index is calculated using the following formula:

[0042] caSI = HR / cVTi;

[0043] Wherein, caSI denotes common carotid shock index, HR denotes heart rate, and cVTi denotes common carotid velocity time integral;

[0044] The common carotid artery systolic shock index is calculated using the following formula:

[0045] caSIs = HR / scVTi;

[0046] Wherein, caSIs denotes common carotid systolic shock index, HR denotes heart rate, and scVTi denotes common carotid systolic velocity time integral.

[0047] In conjunction with the second aspect of the present application, in an optional implementation manner, the method further includes:

[0048] Information for controlling the operation of an infusion pump and / or an oxygen supply device is determined based on the carotid artery oxygen delivery.

[0049] The blood monitoring device and blood monitoring method for traumatic shock provided in the embodiments of the present application include: a first detection module, configured to obtain a carotid artery velocity time integral and a heart rate by detecting carotid artery blood flow; a second detection module, configured to obtain a blood oxygen saturation by detecting the blood oxygen status of the arterial blood flow; a processing module, configured to determine a carotid artery oxygen delivery reflecting the oxygen supply capacity of the carotid artery to the head according to the carotid artery velocity time integral, the heart rate, the blood oxygen saturation, the area of ​​the carotid artery and the hemoglobin value in the blood; in this way, by using the blood monitoring device for traumatic shock, it is possible to detect multiple parameters, and calculate the carotid artery oxygen delivery, a key clinical data, so that by continuously monitoring the index, it is helpful to quickly obtain the status and changes of the patient's brain oxygen supply and systemic oxygen supply, comprehensively consider the patient's compensatory ability, thereby judging the patient's overall risk and reducing the probability of hemorrhagic shock in the patient.

[0050] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0052] Figure 1 A structural block diagram of a blood monitoring device for traumatic shock provided in one embodiment of the present application;

[0053] Figure 2 A schematic diagram of the structure of a blood monitoring device for traumatic shock provided in a specific example of the present application;

[0054] Figure 3 A schematic diagram of a blood monitoring method according to an embodiment of the present application;

[0055] Figure 4 A flow chart of a blood monitoring method provided for a specific example of the present application. DETAILED DESCRIPTION

[0056] In order to make the technical solutions and beneficial effects of the present invention more clearly understandable, the following is a detailed description by listing specific embodiments. The drawings are not necessarily drawn to scale, and local features may be enlarged or reduced to more clearly show the details of the local features; unless otherwise defined, the technical and scientific terms used herein have the same meanings as those in the technical field to which this application belongs.

[0057] Unless otherwise defined, the technical terms or scientific terms involved in this application shall have the general meaning understood by people with general skills in the technical field to which this application belongs. The words such as "one", "a", "the", "these" and the like in this application do not indicate quantitative restrictions, and they can be singular or plural. The terms "include", "comprise", "have" and any variants thereof involved in this application are intended to cover non-exclusive inclusions; for example, a process, method and system, product or device comprising a series of steps or modules (units) is not limited to the listed steps or modules (units), but may include unlisted steps or modules (units), or may include other steps or modules (units) inherent to these processes, methods, products or devices. "Multiple" involved in this application refers to two or more. "And / or" describes the association relationship of associated objects, indicating that there can be three relationships, for example, "A and / or B" can represent: A exists alone, A and B exist at the same time, and B exists alone. The terms "first", "second", "third", etc. involved in this application are only used to distinguish similar objects and do not represent a specific ordering of objects.

[0058] In this application, a patient refers to any person who is being or may be monitored by a blood monitoring device for traumatic shock, and the patient may also be referred to as a patient. Medical personnel, for example, include people who use a blood monitoring device for traumatic shock to monitor patients, and therefore, are also one of the users of the blood monitoring device for traumatic shock; however, users may include not only medical personnel, but also other people who directly or indirectly use the blood monitoring device for traumatic shock.

[0059] The present application embodiment provides a blood monitoring device for traumatic shock. First, please refer to Figure 1 As shown in the figure, the blood monitoring device 100 for traumatic shock (hereinafter may be simply referred to as “device 100 ”) includes: a first detection module 110 , a second detection module 120 , and a processing module 140 .

[0060] Among them, the first detection module 110 is configured to obtain the common carotid artery velocity time integral and heart rate by detecting the carotid artery blood flow; the second detection module 120 is configured to obtain the blood oxygen saturation by detecting the blood oxygen status of the arterial blood flow; the processing module 140 is configured to determine the carotid artery oxygen delivery reflecting the oxygen supply capacity of the carotid artery to the head based on the common carotid artery velocity time integral, heart rate, blood oxygen saturation, common carotid artery area and hemoglobin value in the blood.

[0061] It can be understood that by using the blood monitoring device 100 for traumatic shock, it is possible to detect multiple parameters and calculate the key clinical data of carotid artery oxygen delivery. Therefore, by continuously monitoring this index, it is helpful to quickly obtain the status and changes of the patient's brain oxygen supply and systemic oxygen supply, and comprehensively consider the patient's compensatory ability, so as to judge the patient's overall risk and reduce the probability of hemorrhagic shock in the patient.

[0062] Here, the first detection module 110 may be a blood flow detection module; in practical applications, the first detection module 110 may be, for example, an ultrasonic Doppler blood flow detection module. The second detection module 120 may be a blood oxygen detection module. The processing module 140 may be, for example, a central processing unit (CPU), or other forms of processing modules having data processing capabilities and / or instruction execution capabilities, and may control other components in the device to perform desired functions.

[0063] The carotid velocity time integral (cVTi) is a parameter that is directly correlated with changes in the cardiac stroke volume (SV), and can be used to replace the monitoring of the cardiac stroke volume in trauma emergency management. Among them, VTi is the velocity time integral, that is, the blood volume flowing through each beat per unit area; the blood volume flowing through each beat at the measurement point can be obtained by VTi*S (where S is the carotid artery area). In the human circulation, the stroke volume flows to the whole body through different blood vessels in a certain proportion, so it can be considered that the VTi at the detection point can replace the stroke volume in the calculation process. The carotid velocity time integral, also known as the common carotid artery velocity time integral, reflects the mean pressure.

[0064] Of course, the first detection module 110 can also be configured to obtain the cardiac output per stroke volume SV by detecting the carotid artery blood flow. Studies have found that for every 2% change in cardiac output per stroke volume, the patient's blood loss rate corresponds to about 1%. For example, when the patient's blood loss reaches 25% of the total blood volume, the cardiac output per stroke volume drops to 50% of the normal value. By monitoring the changes in cardiac output per stroke volume, the patient's continuous blood loss can be tracked; or by comparing with the normal value of the cardiac output per stroke volume of the same patient, the patient's blood loss state can be understood.

[0065] Blood oxygen saturation (SPO2) is the ratio of oxygenated hemoglobin bound to oxygen in arterial blood to all bindable hemoglobin, that is, the concentration of blood oxygen in the blood. It is an important parameter reflecting the oxygen supply capacity of the blood and can reflect the oxygen carrying capacity of the blood.

[0066] The hemoglobin value (Hb) in the blood is the hemoglobin content per unit blood volume of the patient. After the patient loses blood, there will be a decrease in blood volume, a decrease in stroke volume, and a decrease in tissue perfusion. When the patient undergoes fluid volume expansion (such as infusion), the hemoglobin value in the blood will decrease accordingly. Oxygenated hemoglobin carries oxygen to perfuse tissues and is the main way for the human body to effectively supply oxygen. A decrease in the hemoglobin value in the blood will affect the patient's tissue oxygen supply capacity. Monitoring changes in the hemoglobin value in the blood, combined with monitoring of parameters such as capacity and oxygen saturation, can effectively monitor the patient's circulatory oxygen supply capacity. If necessary, blood transfusion is needed to increase the patient's blood hemoglobin value and increase oxygen supply.

[0067] By detecting the above parameters, carotid oxygen delivery can be calculated. Carotid oxygen delivery (caDO2) can reflect the oxygen supply capacity of the carotid artery to the head; by continuously monitoring this parameter, the status and changes of the patient's brain oxygen supply and systemic oxygen supply can be quickly obtained. The oxygen delivery capacity of the patient's blood can be improved by increasing volume (for example, increasing cVTi through fluid infusion, blood transfusion, etc.), improving blood oxygenation (for example, increasing SPO2 through oxygen inhalation, artificial ventilation, etc.), or increasing the hemoglobin content in the blood (for example, increasing Hb through blood transfusion or transfusion of red blood cells, etc.), or a combination of the above three methods.

[0068] Continuous monitoring of multiple different parameters can indicate the risk of a serious decrease in one of the parameters (e.g., approaching or reaching the critical value of the parameter), and can also comprehensively consider the patient's compensatory ability to determine the patient's overall risk. By improving one or more parameters separately, the oxygen carrying capacity can be improved, the patient's perfusion can be improved, and the risk of hemorrhagic shock can be reduced.

[0069] Specifically, carotid artery oxygen delivery is calculated using the following formula (1):

[0070] caDO2=k*SPO2*Hb*cVTi*S*HR formula (1)

[0071] Among them, caDO2 represents carotid artery oxygen delivery, k is equal to 1.34, SPO2 represents blood oxygen saturation, Hb represents hemoglobin value in blood, cVTi represents common carotid artery velocity time integral, S represents common carotid artery area, and HR represents heart rate.

[0072] As an optional embodiment, the common carotid artery area is obtained based on the first detection module; or, the device also includes a storage module, and the common carotid artery area is obtained based on the storage module; corresponding to the common carotid artery area being obtained based on the first detection module, the first detection module is further configured to detect the common carotid artery diameter, and the processing module is further configured to obtain the common carotid artery diameter detected by the first detection module and determine the common carotid artery area based on the common carotid artery diameter; corresponding to the common carotid artery area being obtained based on the storage module, the storage module pre-stores data on the correspondence between the common carotid artery area and the height and weight, and the processing module is further configured to obtain the common carotid artery area corresponding to the patient's height and weight stored in the storage module.

[0073] Specifically, the area of ​​the common carotid artery is obtained based on the first detection module, for example, the common carotid artery diameter d is measured by ultrasound based on the ultrasound Doppler blood flow detection module, and then the common carotid artery area S=π(d / 2) 2 Alternatively, the common carotid artery area is obtained based on a storage module, in which a correspondence table between the average common carotid artery area of ​​a population and height and weight is pre-stored. By inputting the height and weight of the patient, the common carotid artery area corresponding to the height and weight of the patient stored in the storage module can be obtained.

[0074] It should be understood that the present application is not limited thereto, and as another feasible implementation, the common carotid artery area can be obtained based on an input device. Specifically, the user obtains the average common carotid artery area value of the population by looking up the patient's height and weight in a table, and then inputs the common carotid artery area into the blood monitoring device 100 for traumatic shock. The input device is a part of the blood monitoring device 100 for traumatic shock, and the input device includes, for example, a keyboard, a button, a touch screen, and the like.

[0075] As an optional embodiment, the processing module 140 is also configured to determine whether a third detection module 130 for detecting the hemoglobin value in the blood is connected to the device 100. If so, the hemoglobin value in the blood is obtained based on the third detection module 130; if not, the hemoglobin value in the blood is obtained based on the user's input operation.

[0076] The third detection module 130 may be a spHb detection module (hemoglobin concentration detection module). The blood monitoring device 100 for traumatic shock may include a plurality of serial ports, and the third detection module 130 may be connected through the serial port, and transmit the detected hemoglobin value in the blood to the processing module 140. After the processing module 140 determines that the third detection module 130 is connected to the device 100, the hemoglobin value in the blood is obtained based on the third detection module 130. Conversely, if the processing module 140 determines that the third detection module 130 is not connected to the device 100, the hemoglobin value in the blood is obtained based on the user's input operation. Similarly, the user can input the patient's hemoglobin value in the blood into the device 100 through an input device; the input device is a part of the device 100, and the input device includes, for example, a keyboard, a button, a touch screen, etc.

[0077] As an optional embodiment, the processing module 140 is further configured to determine the common carotid artery shock index based on the common carotid artery velocity time integral and the heart rate and / or determine the common carotid artery systolic shock index based on the common carotid artery systolic velocity time integral and the heart rate; wherein, corresponding to the processing module 140 being further configured to determine the common carotid artery systolic shock index based on the common carotid artery systolic velocity time integral and the heart rate, the first detection module 110 is further configured to obtain the common carotid artery systolic velocity time integral by detecting the carotid blood flow.

[0078] Specifically, the common carotid artery shock index is calculated using the following formula (2):

[0079] caSI=HR / cVTi formula (2)

[0080] Wherein, caSI denotes common carotid shock index, HR denotes heart rate, and cVTi denotes common carotid velocity time integral.

[0081] Specifically, the common carotid artery systolic shock index is calculated using the following formula (3):

[0082] caSIs=HR / scVTi formula (3)

[0083] Wherein, caSIs denotes common carotid systolic shock index, HR denotes heart rate, and scVTi denotes common carotid systolic velocity time integral.

[0084] Here, the time integral of the common carotid artery systolic velocity reflects the stroke volume of the patient's heart during systole.

[0085] When the patient is in the process of rapid volume changes such as blood loss, or after experiencing severe blood loss, the common carotid artery shock index will change rapidly through continuous monitoring of the common carotid artery flow index (decrease) combined with heart rate changes (increase), reflecting the severity of the patient's blood loss; because the common carotid artery velocity time integral integrates the blood flow conditions of the common carotid artery during the systole and diastole of each beat, it can reflect the changes in the average blood pressure.

[0086] Similarly, when the patient is in a state of bleeding or post-bleeding, the common carotid systolic shock index can also well quantify the severity of the patient's shock. Among them, the common carotid systolic velocity time integral is more directly related to systolic blood pressure (SBP). At the same time, the common carotid systolic velocity time integral is highly consistent with the changes in the heart's stroke volume, which can more directly reflect the progression of shock. Therefore, the common carotid systolic shock index can replace the commonly used non-invasive shock index SI (SI = HR / SBP), and has better sensitivity and monitoring continuity than the traditional non-invasive shock index.

[0087] As an optional embodiment, the processing module 140 is further configured to determine information for controlling the operation of the infusion pump and / or the oxygen supply device according to the carotid artery oxygen delivery.

[0088] In a specific application, the blood monitoring device 100 for traumatic shock may also include a communication interface for connecting to an infusion pump and / or an oxygen supply device. It is understandable that the infusion pump and the oxygen supply device here are respectively an intelligent infusion pump and an intelligent oxygen supply device, so that they can be controlled by the device 100 and adjust their own working parameters.

[0089] Optionally, the processing module 140 is further configured to determine information for controlling the operation of the infusion pump and / or the oxygen supply device according to the common carotid artery shock index and / or the common carotid artery systolic shock index.

[0090] After determining parameters such as carotid oxygen delivery, common carotid shock index and / or common carotid systolic shock index, the processing module 140 determines information for controlling the operation of the infusion pump and / or oxygen supply by comparing the above parameters with the threshold parameter range. The information for controlling the operation of the infusion pump and / or oxygen supply may specifically include at least one of the following: controlling the start of the infusion pump and / or oxygen supply, controlling the stop of the infusion pump and / or oxygen supply, and controlling the operating parameters of the infusion pump and / or oxygen supply. The blood monitoring device 100 for traumatic shock transmits the above information for controlling the operation of the infusion pump and / or oxygen supply to the corresponding device (infusion pump and / or oxygen supply) through the communication interface, so that the corresponding device performs corresponding operations according to the information after receiving the information.

[0091] It should be understood that the present application is not limited to this, and the processing module 140 can also be configured to output various parameters based on the output device in the device 100 for reference by medical staff in decision-making. Among them, various parameters can include carotid oxygen delivery caDO2, and common carotid shock index caSI (and / or common carotid systolic shock index caSIs); and can also include: cardiac output per stroke SV, carotid velocity time integral cVTi, blood oxygen saturation SPO2 and hemoglobin value Hb in the blood. In other words, the device 100 can realize the output of various parameters.

[0092] Next, the blood monitoring device for traumatic shock provided by the present application and its beneficial effects will be further described with reference to a specific example.

[0093] Figure 2 A structural schematic diagram of a blood monitoring device for traumatic shock provided by a specific example of the present application is shown. As shown in the figure, the device includes a CPU and various input and output components connected to the CPU. Specifically, the device includes an ultrasonic Doppler blood flow detection module and an SPO2 blood oxygen module. In addition, it may include or exclude a spHb detection module. Among them, the ultrasonic Doppler blood flow detection module is connected to the CPU via a USB; the SPO2 blood oxygen module and the spHb detection module are connected to the CPU via a serial port; thereby transmitting the detection results to the CPU. In order to store the received detection results, as well as the intermediate quantities and algorithm programs in the storage operation process, the device also includes a storage module connected to the CPU, such as a memory, a storage device, etc. Of course, the device may also include a network port.

[0094] The device integrates an ultrasonic Doppler blood flow detection module, an SPO2 blood oxygen module and a spHb detection module, so that one machine can be used to detect multiple parameters and calculate two key clinical data, that is, multi-parameter monitoring. The multiple parameters detected include: cardiac output per stroke SV, carotid velocity time integral cVTi, blood oxygen saturation SPO2 and hemoglobin value Hb in the blood. Based on these measured parameters, the two key clinical data calculated include: carotid oxygen delivery caDO2, and common carotid shock index caSI (and / or common carotid systolic shock index caSIs).

[0095] Clinically, these indicators can be used to increase volume (for example, by increasing cVTi through fluid infusion, blood transfusion, etc.), improve blood oxygenation (for example, by increasing SPO2 through oxygen inhalation, artificial ventilation, etc.), or increase the hemoglobin content in the blood (for example, by increasing Hb through blood transfusion or red blood cell transfusion), or a combination of the above three methods to improve the oxygen transport capacity of the patient's blood. The data can also be directly associated with the corresponding equipment, such as smart infusion pumps and smart oxygen supply devices, so as to achieve automatic adjustment of the corresponding equipment and improve the oxygen transport capacity of the patient's blood pressure.

[0096] The device can be connected to the intelligent infusion pump and the intelligent oxygen supply meter through the communication interface, so as to transmit the corresponding control information to them. The communication interface is used for communication with other intelligent devices, data transmission, design and feedback. The communication interface can be a commonly used communication hardware interface such as USB / UART / network port / Bluetooth / WIFI / CAN, and this application does not make specific restrictions on it.

[0097] In addition, the device may also include an audio power amplifier and a speaker connected to the audio power amplifier. The speaker may be used to perform audio output of the result determined by the CPU and to perform audio output of information that needs to be reminded to the user.

[0098] In this specific example, the device may also include an input device; wherein the input device includes but is not limited to at least one of the following: a keyboard, a button, a voice-controlled input device, and a touch screen. It is understandable that other devices capable of realizing signal input are included in the meaning of this application. In addition, the device may also include an output device; wherein the output device includes but is not limited to an LCD display. Of course, other devices capable of realizing signal output are also included in the meaning of this application. In this way, the device can realize information interaction with the user.

[0099] The present application also provides a blood monitoring method, which is applied to a blood monitoring device for traumatic shock. Figure 3 , the method comprising:

[0100] Step 301: Detect carotid blood flow based on the first detection module to obtain common carotid artery velocity time integral and heart rate;

[0101] Step 302: Detect the blood oxygen state of arterial blood flow based on the second detection module to obtain blood oxygen saturation;

[0102] Step 303, obtaining the common carotid artery area and the hemoglobin value in the blood;

[0103] Step 304: Determine the carotid artery oxygen delivery, which reflects the oxygen supply capacity of the carotid artery to the head, based on the time integral of the common carotid artery velocity, the heart rate, the blood oxygen saturation, the common carotid artery area and the hemoglobin value in the blood.

[0104] Here, the blood monitoring device for traumatic shock may be the blood monitoring device 100 for traumatic shock provided in the above embodiment of the present application; of course, it may also be other devices capable of executing each step in the above method.

[0105] As an optional embodiment, carotid artery oxygen delivery is calculated using the following formula:

[0106] caDO2=k*SPO2*Hb*cVTi*S*HR;

[0107] Among them, caDO2 represents carotid artery oxygen delivery, k is equal to 1.34, SPO2 represents blood oxygen saturation, Hb represents hemoglobin value in blood, cVTi represents common carotid artery velocity time integral, S represents common carotid artery area, and HR represents heart rate.

[0108] As an optional implementation, obtaining the common carotid artery area includes:

[0109] Detecting the carotid blood flow based on the first detection module to obtain the common carotid artery diameter, and determining the common carotid artery area according to the common carotid artery diameter; or,

[0110] The common carotid artery area corresponding to the patient's height and weight is obtained according to the pre-stored correspondence data between the common carotid artery area and the height and weight.

[0111] As an optional implementation, obtaining the hemoglobin value in the blood includes:

[0112] Determine whether a third detection module for detecting the hemoglobin value in the blood is connected to the blood monitoring device for traumatic shock. If so, obtain the hemoglobin value in the blood based on the third detection module; if not, obtain the hemoglobin value in the blood based on the user's input operation.

[0113] As an optional implementation, the method further includes:

[0114] determining a common carotid shock index based on the time integral of common carotid velocity and heart rate; and / or,

[0115] The carotid blood flow is detected based on the first detection module to obtain the common carotid systolic velocity time integral; the common carotid systolic shock index is determined according to the common carotid systolic velocity time integral and the heart rate.

[0116] As an optional implementation, the common carotid artery shock index is calculated using the following formula:

[0117] caSI = HR / cVTi;

[0118] Wherein, caSI denotes common carotid shock index, HR denotes heart rate, and cVTi denotes common carotid velocity time integral;

[0119] The common carotid artery systolic shock index was calculated using the following formula:

[0120] caSIs = HR / scVTi;

[0121] Wherein, caSIs denotes common carotid systolic shock index, HR denotes heart rate, and scVTi denotes common carotid systolic velocity time integral.

[0122] As an optional implementation, the method further includes:

[0123] Information used to control the operation of an infusion pump and / or an oxygen meter is determined based on carotid artery oxygen delivery.

[0124] It should be understood that the blood monitoring method provided in this embodiment and the blood monitoring device for traumatic shock provided in the above embodiment belong to the same concept, and the detailed technical features can refer to the above embodiment of the blood monitoring device for traumatic shock, which will not be repeated here.

[0125] Next, please refer to Figure 4 . Figure 4 A flow chart of a blood monitoring method provided for a specific example of the present application is shown in the figure. After the method starts, the carotid blood flow parameters cVTi, scVTi, and HR are obtained through the ultrasound module; and the SPO2 value is obtained through the SPO2 blood oxygen module; and it is determined whether there is a spHb module. If so, the Hb value is obtained through the module, and if not, the Hb value is manually input; then, caDO2 is calculated. In addition, caSI and caSIs are calculated based on the carotid blood flow parameters obtained by the ultrasound module. In terms of the control of the intelligent infusion pump and the intelligent oxygen supply meter, it can be determined whether the intelligent infusion pump is to be adjusted. If so, the new parameters of the intelligent infusion pump are set by communication; in addition, it can be determined whether the intelligent oxygen supply meter is to be adjusted. If so, the new parameters of the intelligent oxygen supply meter are set by communication; if neither the intelligent infusion pump nor the intelligent oxygen supply meter needs to be adjusted, no operation is taken. At this point, a cycle is completed, and then the above steps are repeated to continuously detect the patient and continuously control the intelligent infusion pump and the intelligent oxygen supply meter.

[0126] It should be understood that although Figure 3 and Figure 4The steps in the flowchart are shown in sequence according to the arrows, but these steps are not necessarily executed in the order indicated by the arrows. Unless otherwise specified in this document, there is no strict order restriction on the execution of these steps, and these steps can be executed in other orders. Moreover, at least a part of the steps in the figure may include multiple steps or multiple stages, and these steps or stages are not necessarily executed at the same time, but can be executed at different times. The execution order of these steps or stages is not necessarily to be carried out in sequence, but can be executed in turn or alternately with other steps or at least a part of the steps or stages in other steps.

[0127] It should be noted that the blood monitoring method embodiment provided in the embodiments of the present application and the blood monitoring device embodiment for traumatic shock belong to the same concept; the technical features in the technical solutions recorded in the embodiments can be arbitrarily combined without conflict.

[0128] It should be understood that the above embodiments are exemplary and are not intended to include all possible implementations included in the claims. Various modifications and changes may be made on the basis of the above embodiments without departing from the scope of the present disclosure. Similarly, the various technical features of the above embodiments may be arbitrarily combined to form other embodiments of the present invention that may not be explicitly described. Therefore, the above embodiments only express several implementations of the present invention and do not limit the scope of protection of the patent of the present invention.

Claims

1. A blood monitoring device for traumatic shock, characterized in that: include: A first detection module is configured to obtain a time integral of a common carotid artery velocity and a heart rate by detecting a carotid artery blood flow; A second detection module is configured to obtain blood oxygen saturation by detecting the blood oxygen state of arterial blood flow; The processing module is configured to determine the carotid artery oxygen delivery reflecting the oxygen supply capacity of the carotid artery to the head according to the common carotid artery velocity time integral, the heart rate, the blood oxygen saturation, the common carotid artery area and the hemoglobin value in the blood; wherein the blood volume flowing through the common carotid artery per beat is obtained according to the common carotid artery velocity time integral and the common carotid artery area, and the carotid artery oxygen delivery is calculated using the following formula: caDO2 = k × SPO2 × Hb × cVTi× S × HR; caDO2 represents carotid artery oxygen delivery, k is equal to 1.34, SPO2 represents blood oxygen saturation, Hb represents the hemoglobin value in the blood, cVTi represents the common carotid artery velocity time integral, S represents the common carotid artery area, and HR represents the heart rate.

2. The blood monitoring device for traumatic shock according to claim 1, characterized in that: The common carotid artery area is obtained based on the first detection module; or, the device further includes a storage module, and the common carotid artery area is obtained based on the storage module; Corresponding to the common carotid artery area being obtained based on the first detection module, the first detection module is further configured to detect the common carotid artery diameter, and the processing module is further configured to obtain the common carotid artery diameter detected by the first detection module and determine the common carotid artery area according to the common carotid artery diameter; The common carotid artery area is obtained based on the storage module, and the storage module pre-stores the corresponding relationship data between the common carotid artery area and the height and weight. The processing module is also configured to obtain the common carotid artery area corresponding to the patient's height and weight stored in the storage module.

3. The blood monitoring device for traumatic shock according to claim 1, characterized in that: The processing module is also configured to determine whether a third detection module for detecting the hemoglobin value in the blood is connected to the device. If so, the hemoglobin value in the blood is obtained based on the third detection module; if not, the hemoglobin value in the blood is obtained based on the user's input operation.

4. The blood monitoring device for traumatic shock according to claim 1, characterized in that: The processing module is further configured to determine a common carotid shock index according to the common carotid velocity time integral and the heart rate and / or determine a common carotid systolic shock index according to the common carotid systolic velocity time integral and the heart rate; Wherein, the processing module is also configured to determine the common carotid artery systolic shock index according to the common carotid artery systolic velocity time integral and the heart rate, and the first detection module is also configured to obtain the common carotid artery systolic velocity time integral by detecting the carotid artery blood flow.

5. The blood monitoring device for traumatic shock according to claim 4, characterized in that: The common carotid artery shock index is calculated using the following formula: caSI = HR / cVTi; Wherein, caSI represents common carotid shock index, HR represents heart rate, and cVTi represents common carotid velocity time integral; The common carotid artery systolic shock index is calculated using the following formula: caSIs = HR / scVTi; Wherein, caSIs denotes common carotid systolic shock index, HR denotes heart rate, and scVTi denotes common carotid systolic velocity time integral.

6. The blood monitoring device for traumatic shock according to claim 1, characterized in that: The processing module is further configured to determine information for controlling the operation of an infusion pump and / or an oxygen supply device based on the carotid artery oxygen delivery.

7. A blood monitoring method, applied to a blood monitoring device for traumatic shock, characterized in that: The method comprises: Detecting carotid blood flow based on the first detection module to obtain common carotid artery velocity time integral and heart rate; Detecting the blood oxygen state of arterial blood flow based on the second detection module to obtain blood oxygen saturation; The common carotid artery area and hemoglobin value in the blood were obtained; The carotid artery oxygen delivery, which reflects the oxygen supply capacity of the carotid artery to the head, is determined according to the common carotid artery velocity time integral, the heart rate, the blood oxygen saturation, the common carotid artery area and the hemoglobin value in the blood; wherein the blood volume flowing through the common carotid artery per beat is obtained according to the common carotid artery velocity time integral and the common carotid artery area, and the carotid artery oxygen delivery is calculated using the following formula: caDO2 = k × SPO2 × Hb × cVTi × S ×HR; caDO2 represents carotid artery oxygen delivery, k is equal to 1.34, SPO2 represents blood oxygen saturation, Hb represents the hemoglobin value in the blood, cVTi represents the common carotid artery velocity time integral, S represents the common carotid artery area, and HR represents the heart rate.

8. The blood monitoring method according to claim 7, characterized in that: The obtaining of the common carotid artery area comprises: Detecting the carotid blood flow based on the first detection module to obtain the common carotid artery diameter, and determining the common carotid artery area according to the common carotid artery diameter; or, The common carotid artery area corresponding to the patient's height and weight is obtained according to the pre-stored correspondence data between the common carotid artery area and the height and weight.

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