CN116982958A - Wearable equipment capable of accurately positioning human brain tissue hemorrhage - Google Patents

Abstract

The invention provides a wearable device that can accurately locate bleeding in human brain tissue. It is characterized in that it includes an excitation electrode; a measurement electrode pair; a power supply unit; and a central control unit. The present invention detects the bleeding and ischemia conditions of the target object by attaching the excitation electrode and the measurement electrode to the detection position of the target object. The power supply unit supplies power to the excitation electrode, and the measurement electrode pair generates alternating magnetic field and secondary magnetic field MIT according to the generated alternating magnetic field and secondary magnetic field MIT. The data is measured, and then the central control unit obtains the conductivity distribution in the organism through an image reconstruction algorithm based on the relationship between the detection voltage and the conductivity distribution in the measured organism, and calculates the target object based on the conductivity distribution in the target organism. The bleeding status is used to determine whether the target threshold is exceeded, and the alarm unit will alarm in time when the target threshold is exceeded, so as to promptly discover the abnormal bleeding status of the detection part of the target object, thereby improving the safety of the target object.

Description

A wearable device that can accurately locate bleeding in human brain tissue

Technical field

The invention relates to a wearable device that utilizes the principle of magnetic induction imaging to register with a reference image of human brain tissue to accurately locate the bleeding location of human brain tissue, and belongs to the field of medical technology.

Background technique

Organ bleeding is mostly caused by high-energy abdominal closed injury, which leads to organ rupture, internal bleeding, and insufficient effective circulating blood volume. Symptoms such as decreased blood pressure, increased heart rate, clammy limbs, and rapid pulse may occur. The risk of serious consequences is very high. high. During emergency treatment and transportation, it is often impossible to correctly identify internal bleeding in time or accurately assess the severity of internal bleeding, which harms the patient's prognosis. Therefore, it is important to detect internal bleeding in real time and remind medical rescue personnel to initiate emergency measures. It is necessary to ensure that medical personnel can respond correctly time to initiate emergency clinical treatment.

Contents of the invention

The technical problem to be solved by the present invention is that there are certain defects in the detection of internal bleeding status, it cannot assist medical staff to implement emergency treatment and management of patients with intra-abdominal bleeding, and it cannot detect abnormal conditions of bleeding patients in a timely manner.

In order to solve the above technical problems, the technical solution of the present invention is to provide a wearable device that can accurately locate bleeding in human brain tissue, which is characterized by including:

The excitation electrode is located below the part to be detected of the target object, and the part to be detected is located in the detection area, and an alternating magnetic field is applied to the detection area through the excitation electrode;

Measuring electrode pairs are non-contactly arranged around the detection area where the target object is detected;

a power supply unit, electrically connected to the excitation electrode, and used to provide power to the excitation electrode;

A central control unit is electrically connected to the power supply unit and the measurement electrode pair respectively, and is used to control the power supply unit and collect MIT data through the measurement electrode pair. The central control unit determines the detection voltage and the conductivity distribution in the measured organism. relationship, the conductivity distribution in the living body is obtained through the image reconstruction algorithm, and the bleeding state of the detection target object is calculated based on the conductivity distribution in the detection target object.

Preferably, it also includes an alarm unit, the alarm unit is electrically connected to the central control unit; when the central control unit determines that the bleeding state of the detection target object exceeds the target threshold, it sends an alarm signal to the alarm unit, The alarm unit issues an alarm according to the alarm signal.

Preferably, the alarm unit includes a sound chip and a vibrator. After the alarm unit receives the alarm signal, the sound chip issues an audible alarm and the vibrator generates vibration.

Preferably, each measuring electrode in the measuring electrode pair is implemented by a measuring coil, and the measuring coil is integrated and arranged inside the protective cover. A support is provided on one side of the outer wall of the protective cover, and the protective cover is in position through the support. The detection target object is located near the detection area.

Preferably, a wireless communication unit is further included, and the central control unit sends the current bleeding condition of the detected target object to the terminal device through the wireless communication unit.

Preferably, it also includes a Bluetooth module, and the central control unit sends the current bleeding situation of the detected target object to the terminal device through the Bluetooth module.

Compared with existing technical solutions, the present invention has the following beneficial effects:

By attaching the excitation electrode and the measurement electrode to the detection position of the target object to detect the bleeding and ischemia conditions of the target object, the power supply unit supplies power to the excitation electrode to continuously generate an alternating magnetic field through the excitation electrode, and the measurement electrode pair is based on the generated The alternating magnetic field and secondary magnetic field MIT data are measured, and then the central control unit obtains the conductivity distribution in the organism through the image reconstruction algorithm based on the relationship between the detection voltage and the conductivity distribution in the measured organism. According to the conductance in the target organism The rate distribution calculates the bleeding status of the target object in order to determine whether the target threshold is exceeded, and when the target threshold is exceeded, the alarm unit will alarm in time to remind nearby medical staff to perform timely rescue and promptly discover the abnormal bleeding status of the target object's detection site. situation, improving the security of the target object.

Description of drawings

Figure 1 illustrates the standard image of brain tissue: based on the existing brain atlas library and image registration technology, a three-dimensional standard brain functional nuclei map is sketched for registration with the image generated by scanning based on MIT technology. In order to accurately locate the bleeding area in the patient's brain tissue.

Figure 2 illustrates the design of a hat-type scanning device capable of fully surrounding excitation source scanning.

A transcranial ultrasound detection port is left at the position shown in Figure 3 to facilitate registration with the ultrasound image, thereby more accurately locating the location of brain bleeding.

Figure 4 shows an image scanned by MIT equipment (MIT->Contour cropping/ultrasound->3D registration->Reconstruction).

Detailed ways

The present invention will be further described below in conjunction with specific embodiments. It should be understood that these examples are only used to illustrate the invention and are not intended to limit the scope of the invention. In addition, it should be understood that after reading the teachings of the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the appended claims of this application.

Principle of magnetic induction (hereinafter referred to as MIT): Biological tissue has electrical conductivity characteristics. Place the biological tissue in a constant-strength magnetic field and apply a pulse magnetic field to the biological tissue, and an induced current will be generated in the biological tissue. The current generates the Lorentz force under the coupling effect of the constant-strength magnetic field. Since the current is alternating, the Lorentz force is also alternating. Biological tissue is an elastic tissue, and the Lorentz force will cause a tiny unit of the biological tissue to vibrate and emit sound waves. The frequency of the sound waves is the same as the alternating voltage. A detector is used to receive the sound waves emitted from biological tissues and perform amplification, filtering, storage and other processing. Because the acoustic wave signal contains conductivity information of biological tissue, the sound source image of the tissue can be reconstructed. Then, according to the electromagnetic field theory, the tissue conductivity parameter distribution image is reconstructed from the sound source image. The basic principle of MIT detection is Faraday's electromagnetic induction theory, which includes the following steps: first, an alternating magnetic field is applied to the detection area; then, when there is a substance with electromagnetic properties in the induction area, an induced eddy current will be formed, thereby generating a secondary magnetic field. ; Finally, the magnetic field detectors arranged outside the detection area are used to collect MIT data. After post-processing the data, the MIT image can be obtained by using the image reconstruction algorithm.

The wearable device disclosed in this embodiment that can accurately locate bleeding in human brain tissue is implemented based on the aforementioned MIT technology. The detection part of the target object is detected by placing the excitation electrode and the measurement electrode pair at the detection position of the target object. Bleeding and ischemia. The power supply unit supplies power to the excitation electrode to continuously generate an alternating magnetic field through the excitation electrode. The measuring electrode pair measures based on the generated alternating magnetic field and induced magnetic field MIT data. After that, the central control unit obtains the conductivity distribution in the organism through an image reconstruction algorithm based on the relationship between the detection voltage and the conductivity distribution in the measured organism, and calculates the bleeding state of the target object based on the conductivity distribution in the target organism, In order to facilitate the judgment of whether the target threshold is exceeded, and when the target threshold is exceeded, the alarm unit will alarm in time to remind nearby medical staff to perform timely rescue, and to timely detect the abnormal bleeding status of the detection site of the target object, thereby improving the safety of the target object.

As shown in Figure 1, in one embodiment, the present invention discloses a wearable device that uses the principle of magnetic induction imaging to register with a reference image of human brain tissue to accurately locate the bleeding location of human brain tissue, including:

The excitation electrode includes an excitation coil, and the excitation coils are connected at the target object detection position for generating an alternating magnetic field.

The measuring electrode pair includes 4 to 16 measuring electrodes. The measuring electrodes are all arranged at the detection position of the target object, and the current MIT data of the target object detection area is obtained according to the excitation magnetic signal.

A power supply unit is electrically connected to the excitation electrode and used to provide power to the excitation electrode.

A central control unit is electrically connected to the power supply unit and the measurement electrode pair respectively, and is used to control the power supply unit, and obtain the internal conductivity of the living body through an image reconstruction algorithm based on the relationship between the detection voltage and the conductivity distribution in the measured living body. The conductivity distribution is used to calculate the bleeding state of the target object based on the conductivity distribution in the target organism.

In this embodiment, when it is necessary to detect the bleeding status of the target object, the excitation electrode is first placed on the detection part of the target object, an alternating magnetic field is generated under the power supply of the power supply unit, and the measuring electrode pair is also placed on the target object. peripheral of the detection position. In biomedical applications, it is usually assumed that the interior of the organism is passive and non-magnetic, and that the electromagnetic properties of each tissue in the organism are linear and isotropic. An alternating magnetic field is applied to the detection area through the excitation electrode, and then When there is a substance with electromagnetic properties in the induction zone, an induced eddy current will be formed, thereby generating a secondary magnetic field. MIT data is then collected using measurement electrode pairs arranged outside the detection area. After that, the central control unit obtains the relationship between the detection voltage and the conductivity distribution in the measured organism based on the MIT data. The conductivity distribution in the organism can be obtained through the image reconstruction algorithm. Based on the existing brain atlas library and image registration technology, a Three-dimensional map of standard brain functional nuclei. Used to register with images scanned based on MIT technology. In order to accurately locate the bleeding area of the patient's brain tissue, calculate the bleeding status of the target object, so as to detect abnormal situations in time.

For example, the power supply unit can use a rechargeable power supply or a battery power supply. The rechargeable power supply can ensure the continuous operation and use of the device while avoiding pollution, and the use of battery power can ensure that the device can be used for a long time.

In actual production, the internal mechanism of the entire system can be designed in any position and shape according to performance and aesthetic requirements. Each chip can be connected using the connection method commonly used by current chips. At the same time, in order to meet the needs of use in different scenarios Depending on the requirements, chips with different numbers of pins can be used.

Furthermore, the central control unit is also equipped with a recording chip inside. During the wearing process, by detecting and recording bleeding and ischemia conditions at the detection site, it ensures more accurate monitoring of the subject and has excellent personalized configuration capabilities. Monitoring different individuals can effectively help medical staff manage patients with suspected bleeding and ischemia.

In some embodiments, the alarm unit further includes an alarm unit electrically connected to the central control unit, and the central control unit is configured to send an alarm when it is determined that the bleeding state of the target object exceeds a target threshold. The signal is sent to the alarm unit, and the alarm unit issues an alarm according to the alarm signal.

After the central control unit detects the current bleeding state of the target object detection position, when the bleeding state exceeds the target threshold, it can be determined that the current bleeding state of the target object is abnormal, and the central control unit sends an alarm signal to the alarm unit to start the alarm unit. Call the police.

Further, the alarm unit includes a sound chip and a vibrator. After the alarm unit receives the alarm signal, the sound chip issues an audible alarm and the vibrator generates vibration.

Specifically, when the alarm unit activates the alarm, the sound chip is activated to generate a sound signal, and the vibrator is activated to generate vibration, thereby promptly reminding medical staff near the target object to provide rescue.

For example, the vibrator includes a motor, and the motor drives the motor rotor to rotate to drive the cam to rotate to generate vibration, or a linear motor is used. When the alarm unit receives the signal, it will send out an audible alarm and a vibration alarm. After receiving the alarm signal, medical staff promptly provide emergency treatment to the patient. When caring for patients suspected of bleeding or ischemia, nursing staff can promptly discover the condition and deal with the condition through the alarm information of the alarm unit. In addition to being used for monitoring, this device can also be used to diagnose certain potential diseases, such as hidden bleeding and ischemic diseases in the brain, abdomen, heart and other parts.

In some embodiments, the central control unit, the power unit and the vibrator are all integrated inside the protective cover. A support and fixation device is provided on one side of the outer wall of the protective cover. The protective cover passes through the support. The fixing device is fixed at the detection position of the target object, which is convenient for production and use.

In some embodiments, the central control unit further includes a wireless network card to send the current bleeding status of the target object to the terminal device through the wireless network card.

In some embodiments, the central control unit further includes a Bluetooth module to send the current bleeding status of the target object to the terminal device through the Bluetooth module.

The central control unit can communicate with external terminal devices by configuring a wireless network card and Bluetooth module, so as to promptly send the bleeding status of the target object to the terminal device and provide timely warning notifications.

Based on the above equipment, a portable rapid classification and diagnosis method for internal bleeding can be implemented, including the following steps:

S1. Fixedly place the excitation electrode and measurement electrode pair at the target object detection position;

S2. Start the power supply unit to supply power to the excitation electrode to generate an alternating magnetic field through the excitation electrode;

S3. After the excitation electrode generates the excitation magnetic field signal, obtain the current MIT data through the measurement electrode pair;

S4. The central control unit obtains the alternating magnetic field and induced magnetic field MIT data through the measuring electrode pair, and then obtains the conductivity distribution in the organism through the image reconstruction algorithm based on the relationship between the detection voltage and the conductivity distribution in the measured organism. Calculate the bleeding state of the target object based on the conductivity distribution in the target organism;

S5. The central control unit determines the bleeding state, and after determining that the bleeding state exceeds the target threshold, sends an alarm signal to the alarm unit to activate the alarm unit to issue an alarm.

In some embodiments, the alarm unit issues a sound and light alarm by activating a sound chip and a vibrator.

In summary, this embodiment of the present invention provides a wearable device and method that can accurately locate bleeding in human brain tissue. The pair of excitation electrodes and measurement electrodes are fixed on the periphery of the detection position of the target object to detect the detection of the target object. In the case of bleeding or ischemia at the site, the power unit supplies power to the excitation electrode to continuously generate an alternating magnetic field through the excitation electrode, and the measurement electrode pair obtains the alternating magnetic field and induced magnetic field MIT data, and then based on the detection voltage and the conductivity of the organism being measured Distribution relationship, the conductivity distribution in the organism is obtained through the image reconstruction algorithm, and the bleeding state of the target object is calculated based on the conductivity distribution in the target organism, so as to determine whether the bleeding state exceeds the target threshold, and when the target threshold is exceeded, When the alarm occurs, the alarm unit will alarm in time to remind nearby medical staff to carry out timely rescue, and timely detect abnormal bleeding status in the monitoring part of the target object, thereby improving the safety of the target object. Therefore, the present invention effectively overcomes various shortcomings in the prior art and has high industrial utilization value.

Claims (6)

1. A wearable device that can accurately locate bleeding in human brain tissue, characterized by: The excitation electrode is located below the part to be detected of the target object, and the part to be detected is located in the detection area, and an alternating magnetic field is applied to the detection area through the excitation electrode; Measuring electrode pairs are non-contactly arranged around the detection area where the target object is detected; a power supply unit, electrically connected to the excitation electrode, and used to provide power to the excitation electrode; A central control unit is electrically connected to the power supply unit and the measurement electrode pair respectively, and is used to control the power supply unit and collect MIT data through the measurement electrode pair. The central control unit determines the detection voltage and the conductivity distribution in the measured organism. relationship, the conductivity distribution in the living body is obtained through the image reconstruction algorithm, and the bleeding state of the detection target object is calculated based on the conductivity distribution in the detection target object. 2. The wearable device capable of accurately locating bleeding in human brain tissue according to claim 1, further comprising an alarm unit electrically connected to the central control unit; when the central control unit When it is determined that the bleeding state of the detection target object exceeds the target threshold, an alarm signal is sent to the alarm unit, and the alarm unit issues an alarm according to the alarm signal. 3. The wearable device capable of accurately locating bleeding in human brain tissue according to claim 2, wherein the alarm unit includes a sound chip and a vibrator. After the alarm unit receives the alarm signal, The sound chip emits a sound alarm and the vibrator generates vibration. 4. The wearable device capable of accurately locating bleeding in human brain tissue according to claim 1, characterized in that each measuring electrode in the measuring electrode pair is implemented by a measuring coil, and the measuring coil is integrated and arranged inside the protective cover. , a support is provided on one side of the outer wall of the protective cover, and the protective cover is located near the detection area of the detection target object through the support. 5. The wearable device capable of accurately locating hemorrhage in human brain tissue according to claim 1, further comprising a wireless communication unit, and the central control unit transmits the detection result of the target object through the wireless communication unit. The current bleeding situation is sent to the terminal device. 6. The wearable device capable of accurately locating bleeding in human brain tissue according to claim 1, further comprising a Bluetooth module, and the central control unit detects the current bleeding of the target object through the Bluetooth module. The situation is sent to the terminal device.