A Valsalva respiration pressure detection method and device

Abstract

The present invention relates to a Valsalva respiration pressure detection device, comprising a gas detection unit for generating a pressure value of the exhaled gas of a patient wearing the gas detection unit; a physiological monitoring unit for monitoring physiological changes of the body in different respiratory actions; an abdominal detection unit for monitoring changes in abdominal dimension values caused by dynamic changes in abdominal expansion and contraction; a chest detection unit for monitoring changes in chest dimension values caused by dynamic changes in thoracic expansion and contraction; and a display unit configured to be able to display human body index data monitored by each module. This device can monitor whether the patient correctly performs Valsalva respiration.

Description

Technical Field

[0001] The present invention relates to the field of medical machinery, and particularly to a Valsalva breathing pressure detection method and device. Background Art

[0002] Valsalva breathing generally refers to a breathing method in which, after inhaling through abdominal breathing, the glottis is closed tightly, thereby increasing abdominal pressure and thoracic pressure. During clinical interviews, Valsalva breathing can cause the human body to enter a stress state by tightening the diaphragm. By using Doppler or ultrasound technology to detect the brain or heart of the human body in the stress state, more diagnostic evidence can be provided for doctors in imaging.

[0003] Regarding the detection of Valsalva breathing, many detection means are provided in the prior art. The Chinese patent with the patent number CN108186005A discloses a Valsalva maneuver visual quantification device, including: a first connecting pipe, a mouthpiece, a breathing filter, a gas pressure gauge, a three-way joint, a second connecting pipe, and an airbag; the mouthpiece and the breathing filter are both detachably and sealingly installed on the left port of the first connecting pipe, the right port of the first connecting pipe is sealingly connected to the left port of the three-way joint, the upper port of the three-way joint is sealingly connected to the gas pressure gauge, the right port of the three-way joint is sealingly connected to the left port of the second connecting pipe, and the right port of the second connecting pipe is sealingly connected to the airbag. By visualizing the Valsalva breathing maneuver, it helps doctors determine whether the gas pressure meets the standard. The Chinese patent with the patent number CN209186977U relates to an auxiliary device for Valsalva, including a blowing cover for buckling on the human mouth, the position near the edge of the blowing cover is an elastic tight buckling part, a fixing belt is also arranged on the blowing cover, the fixing belt includes a horizontal fixing belt and a vertical fixing belt, and a pressure gauge is connected to the blowing cover through a medium pipe. Most of the existing technologies for the Valsalva breathing standard for clinical diagnosis focus on whether the patient reaches the blowing pressure standard. However, during the actual Valsalva breathing process, since many people in daily life adopt chest breathing, they will use incorrect postures and methods when required by doctors to perform abdominal breathing. In such a situation, even if the blowing pressure meets the standard, the expected pressure effect may not be achieved due to the incorrect use of muscle groups in the patient's chest and abdomen.

[0004] Furthermore, a Chinese patent with the patent number CN112957687A discloses an abdominal breathing training system, which includes an intelligent terminal, an abdominal breathing motion monitoring sensor, a physiological parameter sensor, a communication module, and a central controller; an elastic abdominal belt is provided on the abdominal breathing motion monitoring sensor for fixing to the user's abdomen and collecting abdominal motion signals during breathing; the physiological parameter sensor is used to synchronously collect the user's physiological parameter signals; the collected abdominal motion signals and physiological parameter signals are processed by the central controller and then synchronously transmitted to the intelligent terminal through the communication module, and the abdominal motion information and physiological parameter signals are displayed in real time on the intelligent terminal. On the one hand, it is impossible to determine whether the patient's abdominal movement is caused by chest breathing driving the abdomen or whether abdominal breathing actually occurs based solely on the abdominal movement signal. On the other hand, false detection of non-breathing movements during the breathing interval will occur in the single detection of abdominal movement. Therefore, based on the detection of the abdominal breathing and glottis closure processes in the Valsalva breathing action for patient physiological monitoring, a Valsalva breathing pressure detection method and device need to be designed.

[0005] In addition, on the one hand, there are differences in the understanding of those skilled in the art; on the other hand, although the applicant studied a large number of documents and patents when making this invention, all details and contents are not listed in detail due to space limitations. However, this does not mean that the present invention does not possess the features of these prior arts. On the contrary, the present invention already possesses all the features of the prior arts, and the applicant reserves the right to add relevant prior arts in the background art. Summary of the Invention

[0006] In the prior art, performing imaging observations of the heart or brain during a patient's Valsalva breathing can help provide effective evidence for doctors to diagnose stroke, arrhythmia, etc. According to investigations, when performing intracranial embolus or tricuspid valve detection of the heart, an unstandard Valsalva breathing action will result in a missed diagnosis rate of up to more than 40%. Therefore, the completion effectiveness of the standard Valsalva breathing action has an important impact on the detection rate of diseases such as stroke and myocardial infarction.

[0007] The Valsalva breathing action mainly includes a tension period in which the human body muscles are in a contracted state, and high pressure is formed in the chest cavity and intracranial cavity, and a release period in which the human body muscles relax and return to a flat state. Based on the above two periods, the human body can be divided into the inhalation preparation action of Valsalva breathing, an exhalation action with a pressure of at least 40 cm H 2 O, a breath-holding action in which the glottis is closed for more than 10 seconds, and a slow inhalation action to return to a stable state. Among these actions, the most crucial ones are that the above inhalation and exhalation actions need to rely on the contraction of the abdominal muscles and the diaphragm in the abdomen.

[0008] Abdominal breathing is mainly a type of breathing that relies on the contraction of the abdominal muscles and the diaphragm. The key lies in coordinating the activities of the diaphragm and abdominal muscles during the breathing movement. When inhaling, the abdominal muscles relax, the diaphragm contracts, moves downward, and the abdominal wall expands; when exhaling, the abdominal muscles contract, the diaphragm relaxes, returns to its original position, and the abdomen sinks, increasing the expiratory tidal volume. Different from chest breathing, abdominal breathing causes the chest and abdomen of the patient to form a linkage. By expanding the abdomen to form a cavity, it drives the chest to expand, so that the gas can penetrate deep into the lung tissue.

[0009] Since many people, such as office workers, use the chest for chest breathing in their long-term habits and have a small lung capacity, when performing the Valsalva breathing action, they do not use abdominal breathing or the expiratory force is insufficient, resulting in the failure of Valsalva breathing, thus causing the test results to be unsatisfactory.

[0010] In view of the deficiencies of the prior art, the present invention provides a Valsalva breathing pressure detection device, which includes a gas detection unit for generating the pressure value of the exhaled gas of a patient wearing the gas detection unit; a physiological monitoring unit for monitoring the physiological changes of the body in different breathing actions; an abdominal detection unit for monitoring the change in the abdominal dimension value caused by the dynamic changes of abdominal expansion and contraction; a chest detection unit for monitoring the change in the chest dimension value caused by the dynamic changes of chest expansion and contraction; and a display unit configured to be able to display the human index data monitored by each module.

[0011] According to a preferred embodiment, the chest detection unit is used to collect chest posture information including the chest dimension value; the abdominal detection unit collects abdominal posture information including the abdominal dimension value based on the chest posture information of the chest detection unit to form a collaborative detection of abdominal breathing; the gas detection unit generates the pressure value of the exhaled gas of a patient wearing the gas detection unit in response to the same change trend of the chest posture information provided by the chest detection unit and the abdominal posture information formed by the abdominal detection unit.

[0012] According to a preferred embodiment, in response to a reduction in the abdominal dimension value collected by the abdominal detection unit for collecting abdominal posture information including the abdominal dimension value, the gas detection unit detects the pressure value of the patient's exhaled gas. After the pressure value detected by the gas detection unit for generating the pressure value of the exhaled gas of the patient wearing the gas detection unit reaches the first threshold, the abdominal detection unit for collecting abdominal posture information including the abdominal dimension value and the chest detection unit for collecting chest posture information including the chest dimension value monitor the patient's abdominal posture and chest posture to ensure that the patient completes the physiological detection in a state of holding breath after exhalation. When the pressure value of the patient's exhaled gas detected by the gas detection unit reaches the first threshold, in response to the fact that neither the abdominal dimension value related to the patient's abdominal inhalation monitored by the abdominal detection unit nor the chest dimension value related to the patient's chest inhalation monitored by the chest detection unit has changed dynamically, the physiological monitoring unit for performing physiological detection on the patient in the Valsalva breathing process transmits the physiological index data of the patient in the tension phase collected to the display unit for displaying the physiological index data to the doctor.

[0013] According to a preferred embodiment, when the patient wearing the gas detection unit starts to perform an inhalation action to increase the intrathoracic pressure in preparation for examining the physiological state of the internal tissues, the abdominal detection unit can collect the abdominal dimension value of the patient during abdominal breathing; the gas detection unit detects the pressure value of the patient's exhaled gas in response to the reduction in the abdominal dimension value collected by the abdominal detection unit, and after the pressure value reaches the first threshold, the abdominal detection unit and the chest detection unit monitor the abdominal dimension value and the chest dimension value of the patient based on the maintenance of the non-breathing state of the patient after exhalation; when neither the abdominal dimension value monitored by the abdominal detection unit nor the chest dimension value monitored by the chest detection unit has changed dynamically, the physiological monitoring unit in response to the pressure value reaching the first threshold transmits the physiological phenomenon information of the patient in the tension phase collected to the control module.

[0014] Advantages of the present technology: When performing TCD bubble detection, patients, especially those at risk of diseases such as stroke and myocardial infarction, are required to correctly perform the Valsalva maneuver to obtain a higher disease detection efficiency. In response to the requirements of the Valsalva maneuver, this device determines whether the patient's first inhalation action during the Valsalva maneuver is correct, or whether the patient performs diaphragmatic breathing by expanding the abdominal muscles, through the coordinated detection of the abdomen and chest. Through the coordinated detection of the abdomen and chest, this device determines whether the patient's abdomen exerts force during the first inhalation action. During the first exhalation action, this device determines whether the patient uses the muscle group in the expanded abdomen to compress the lungs, so as to find the reason for the failure that the patient's first exhalation action does not reach the air pressure value standard. At the same time, when the patient completes the first exhalation action and enters the first breath-holding action, through the detection of the airflow at the mouth and the detection of the coordinated dimensional value changes of the chest and abdomen, it is accurately known whether the patient is in a complete breath-holding state with the air valve closed, and based on the patient's second inhalation action, the nodes of the release period and the tension period of the Valsalva maneuver corresponding to the patient's physiological phenomenon monitoring are determined, so as to provide a more accurate diagnostic basis for doctors.

[0015] The advantages of this technical solution are as follows: 1. By detecting the dimensional values of the abdomen and chest, the monitoring of the patient during the Valsalva maneuver is realized, so as to ensure that the patient completes the Valsalva maneuver with diaphragmatic breathing, and ensure that the subsequent imaging examinations of the brain or heart are positive detection results; 2. By detecting the exhalation air pressure, it is ensured that the patient reaches the required exhalation air pressure during the Valsalva maneuver, so as to ensure that the patient completes the Valsalva maneuver with a qualified exhalation air pressure, thereby ensuring that the subsequent imaging examinations of the brain or heart are positive detection results; 3. Since the whole process uses devices such as abdominal belts and chest belts to monitor the patient's abdomen and chest, doctors will not misjudge due to the expansion of the chest and abdomen observed by the eyes, and there is no physical contact between the doctor and the patient, thus avoiding the discomfort caused by physical contact to the patient; 4. Due to the restraint effect of the abdominal belt, the patient can be prompted to perform the action of expanding the abdomen and inhaling, thus helping the patient in a tense state to perform correct diaphragmatic breathing.

[0016] According to a preferred embodiment, when a patient in the tension period exhales based on a doctor's instruction and enters the release period, the physiological monitoring unit collects the same physiological index data as that of the patient in the tension period for the patient in response to the changing trend that the chest posture information provided by the chest detection unit and the abdominal posture information formed by the abdominal detection unit both increase, and sends it to the display unit that displays the physiological index data to the doctor.

[0017] Advantages of the present technology: By monitoring the abdomen during the patient's inhalation and exhalation movements, the release phase and the tension phase of the patient can be correctly distinguished, and a comparison and judgment can be made based on the physiological phenomena collected in different periods. Since the result evaluation of the TCD bubble test depends on the grading judgment of the number of microbubbles, and according to the relevant literature, more microbubbles are generated during the release phase than the tension phase during the Valsalva breathing process. Therefore, the doctor needs to combine the number of microbubbles in the release phase and the tension phase during the Valsalva breathing process to judge the result of the TCD bubble test for the patient. Based on the change in the abdominal dimension value, the system collects physiological phenomenon images for patients whose state changes from the tension phase to the release phase, so as to capture the complete process of microbubble appearance in the heart caused by the Valsalva breathing process.

[0018] According to a preferred embodiment, when a patient wearing the gas detection unit starts the thoracic cavity pressurization action for preparing to check the physiological state of the internal tissues, the gas detection unit responds to detect the pressure value of the exhaled gas of the patient in response to the dynamic trend that the numerical set including the chest dimension value detected by the chest detection unit and the abdominal dimension value detected by the abdominal detection unit both increase for the purpose of determining that the patient makes correct abdominal breathing exhalation preparation. Preferably, the thoracic cavity pressurization action is an inhalation action.

[0019] Advantages of the present technology: Since the interval time for the patient's abdomen to contract and drive the exhalation behavior is short, it will cause the gas detection unit to have an unsatisfactory detection of the gas pressure during exhalation. The air pressure detection working time of the gas detection unit is set in the time period of inhalation preparation before the patient exhales. On the one hand, when the abdomen and the chest do not expand simultaneously, it is determined that it is not abdominal breathing and the gas detection unit will not work; on the other hand, when neither the abdomen nor the chest expands, it is determined that it is not the patient detection time and the gas detection unit will not work, thereby improving the working accuracy of the gas detection unit and preventing redundant invalid data from interfering with the doctor's diagnosis of clinical patients.

[0020] According to a preferred embodiment, the abdominal detection unit responds to the action of the patient wearing the gas detection unit and changes from the standby state to the working state of collecting the abdominal dimension value of the patient, so that the working state of the respiratory pressure detection device is not affected by the patient wearing the abdominal detection unit and being in a non-detection time.

[0021] Beneficial effects of the present technology: In normal usage scenarios, patients may prefer to wear the abdominal belt and chest belt first. Since human breathing is continuous, it will cause the detected values of the abdominal belt and chest belt worn by the patient during non-detection time to change, triggering the operation of the gas detection unit. Since most current gas detection units use pointer pressure gauges for pressure detection, and the stillness of the pointer pressure gauge before use has an important impact on the low error of subsequent air pressure detection, the pointer pressure gauge does not need to receive external gas in the non-working state, such as possible air-conditioning wind or other winds.

[0022] According to a preferred embodiment, when the gas pressure value formed during the first exhalation action of a patient's single Valsalva breath detected by the gas detection unit is lower than the first threshold and the continuous time when the gas pressure value is lower than the first threshold reaches the second threshold, the abdominal detection unit and the chest detection unit return to the standby state and trigger the display unit to prompt the doctor and the patient to restart a single Valsalva breath.

[0023] According to a preferred embodiment, the abdominal detection unit includes an abdominal belt that surrounds the patient's abdomen and an abdominal belt displacement detector disposed on the abdominal belt. A patient who is breathing can obtain the abdominal dimension value of the patient through the displacement of the abdominal belt displacement detector disposed on the patient's abdomen when the abdomen bulges or tightens. The chest detection unit includes a chest belt that surrounds the patient's chest and a chest belt displacement detector disposed on the chest belt. A patient who is breathing can obtain the chest dimension value of the patient through the displacement of the chest belt displacement detector disposed on the patient's chest when the chest bulges or tightens.

[0024] According to a preferred embodiment, the gas detection unit includes a pressure detection component, and the pressure detection component can detect the gas pressure of the patient's exhalation by receiving the gas from the patient's mouth and generate a corresponding pressure value. Preferably, the Valsalva breath is the Valsalva maneuver.

[0025] According to a preferred embodiment, the physiological monitoring unit is provided with a pulsed Doppler and monitors the blood flow spectrum of the tricuspid valve orifice of the patient during the tension period of the patient.

[0026] A method for detecting Valsalva breath pressure includes the following steps:

[0027] When a patient wearing the gas detection unit starts a thoracic cavity pressurization action to prepare for checking the physiological state of internal tissues, the abdominal detection unit can collect the abdominal dimension value of the patient during abdominal breathing;

[0028] The gas detection unit detects the pressure value of the patient's exhaled gas in response to the reduction of the abdominal dimension value collected by the abdominal detection unit. After the pressure value reaches the first threshold, the abdominal detection unit and the chest detection unit monitor the abdominal dimension value and the chest dimension value of the patient based on the maintenance of the patient's non-breathing state after exhalation.

[0029] When the abdominal dimension value monitored by the abdominal detection unit and the chest dimension value monitored by the chest detection unit do not change dynamically, the physiological monitoring unit that responds to the pressure value reaching the first threshold transmits the physiological phenomenon information of the patient in the tension period collected to the control unit. Brief Description of the Drawings

[0030] Figure 1 It is a schematic diagram showing the positions of the abdominal detection and chest detection of the present invention.

[0031] Reference Signs

[0032] 100: ventral side; 110: first chest detection area; 120: first abdominal detection area; 200: dorsal side; 210: second chest detection area; 220: second abdominal detection area. Detailed Description of the Embodiments

[0033] The following will be described in detail with reference to the drawings.

[0034] Embodiment 1

[0035] The present invention provides a Valsalva respiration pressure detection device, which includes a first module, a second module, and a third module.

[0036] The first module can collect the body physiological index information and posture change information of the patient before and during Valsalva respiration.

[0037] The second module is configured to correct the detection area of at least one detection step when the third module monitors the patient's Valsalva respiration based on the body physiological index information and posture change information of the patient before Valsalva respiration provided by the first module.

[0038] The third module is configured to complete the detection steps corrected by the second module for the patient's Valsalva respiration process based on the body physiological index information and posture change information of the patient during Valsalva respiration provided by the first module.

[0039] According to a preferred embodiment, the first module at least includes: a gas detection unit, a chest detection unit, and an abdominal detection unit. The chest detection unit can collect the chest dimension values during inhalation and exhalation in the patient's cyclic breathing based on the first pressure sensing component arranged around the chest when the chest expands or contracts. The abdominal detection unit can collect the chest dimension values during inhalation and exhalation in the patient's cyclic breathing based on the second pressure sensing component arranged around the chest when the chest expands or contracts. The gas detection unit can be worn on the patient's face and form a certain space with the patient's face, so as to sense the gas flow at the patient's mouth and monitor the air pressure of the gas exhaled by the patient's mouth. The first module includes a chest detection unit for detecting the chest posture information of the patient and an abdominal detection unit for detecting the abdominal posture information of the patient.

[0040] Before the patient performs the Valsalva maneuver, the first module worn on the patient during non-detection time collects the breathing posture information of the chest and abdomen during the patient's daily breathing. The breathing posture information includes chest dimension values and abdominal dimension values. In response to the collection of the information on the breathing postures of the chest and abdomen related to the patient's daily breathing provided by the first module, the second module generates data applicable to the individual patient for accurately detecting the amplitude of the undulating areas of the chest and abdomen of the patient from whom the chest and abdominal posture information is collected. Based on the data of the amplitude of the undulating areas at different positions of the patient's chest and abdomen, the second module corrects the pressure detection accuracy for different areas of the patient's chest or abdomen during the Valsalva maneuver in the third module. Preferably, the amplitude of the undulating areas of the patient's chest and abdomen can be calculated and sorted based on the curvature values of different undulating areas of the patient's chest and abdomen.

[0041] When the patient performs the Valsalva maneuver, large fluctuations will occur in the chest and abdomen. This application monitors the dimensions of the patient's abdomen and chest to know whether the diaphragm located in the abdomen and the intercostal muscles located in the chest of the patient participate in the breathing process during the Valsalva maneuver. However, during the monitoring of the dimension values of the chest and abdomen, there will be areas with narrowed undulation amplitudes in the abdomen and chest of patients with different physical qualities. For example, the area around the navel of a patient with abdominal fat accumulation caused by long-term alcohol consumption has a smaller change in undulation amplitude during the Valsalva maneuver, especially when compared with the undulation amplitudes of the right hypochondriac region and the left hypochondriac region of the patient's abdomen. When obtaining the change in the dimension value of the patient's abdomen by detecting the change in the abdominal pressure value of the patient, the abdominal area with a smaller change in undulation amplitude will cause a large error in the system's detection of the dimension value of the patient's abdominal area, resulting in a misjudgment by the system on whether the patient's diaphragm participates in the Valsalva maneuver, and finally misdiagnosing the correct Valsalva maneuver as an incorrect one.

[0042] According to a preferred embodiment, the second module can divide the detection area of the patient into at least four regions according to the breathing postures of the chest and abdomen during the patient's daily breathing provided by the first module, based on the changing curvature of the regions: a first chest detection region 110 at the chest position on the ventral side 100 of the human body, a second chest detection region 210 at the chest position on the dorsal side 200 of the human body, a first abdominal detection region 120 at the abdominal position on the ventral side 100 of the human body, and a second abdominal detection region 220 at the abdominal position on the dorsal side 200 of the human body. And based on the order of the changing curvatures of the four regions, that is, the first abdominal detection region 120 > the first chest detection region 110 > the second abdominal detection region 220 > the second chest detection region 210, the pressure detection accuracy of the four regions is adjusted, and the pressure detection accuracy of each region is inversely proportional to its changing curvature. Based on the detection results of the first abdominal detection region 120 > the first chest detection region 110 > the second abdominal detection region 220 > the second chest detection region 210, the sorting of the pressure detection accuracy of the above four regions can be the first abdominal detection region 120 < the first chest detection region 110 < the second abdominal detection region 220 < the second chest detection region 210, as Figure 1 shown.

[0043] This system obtains the undulation amplitude of each region of the patient's abdomen based on the collection of the patient's daily breathing, and generates different abdominal pressure detection accuracies based on the individual differences of different patients, so that the abdominal regions with narrowed undulation amplitudes can also obtain correct detection results based on the adjusted pressure regions, ensuring that the system can obtain the correct dimensional values of the patient's abdomen. The system accurately judges whether the patient has diaphragmatic contraction or relaxation, so as to correctly judge whether the Valsalva breathing movement of the patient is standard. The patient's abdominal region includes the right hypochondriac region, the epigastric region, the left hypochondriac region, the right lumbar region, the umbilical region, the left lumbar region, the right inguinal region, the hypogastric region, and the left inguinal region.

[0044] The TCD bubble test for the early detection of stroke or myocardial infarction depends on the patient performing the correct Valsalva maneuver. The correct Valsalva maneuver can improve the positive detection rate of the patient. The key to a qualified Valsalva maneuver lies in abdominal breathing and exhalation pressure. However, during the actual detection of abdominal breathing, due to individual differences, the same-sized abdominal belt and chest belt produce different test criteria for patients. Based on individual differences, the present invention collects data on the individual before detection and generates a detection mode suitable for the patient. Pressure sensors in different regions collect the posture information of the patient's chest and abdomen during normal breathing, so as to generate the trend of posture changes in each region of the chest and abdomen during the patient's breathing. The second module corrects the pressure detection accuracy of different regions of the third module that conforms to the patient's individual, so as to avoid misdiagnosis due to the inconspicuous posture changes of the abdomen and chest during the Valsalva maneuver of the patient. In response to the action recognition of the patient wearing the mouth unit of the first module, when the patient wearing the mouth unit of the first module starts to perform the thoracic pressure increase action, the third module can trigger the gas pressure recognition of the mouth unit in advance based on the decrease in the increasing trend of the abdominal dimension value of the patient during abdominal breathing collected by the abdominal detection unit of the first module, so as to ensure that the exhaled gas pressure during the patient's single Valsalva maneuver is completely detected.

[0045] According to a preferred embodiment, when the air pressure value detected by the mouth unit of the first module reaches the first threshold, the chest detection unit and the abdominal detection unit of the first module are triggered to jointly detect the posture changes of the patient's chest and abdomen. When the abdominal dimension value monitored by the abdominal detection unit and the chest dimension value monitored by the chest detection unit do not change dynamically due to the patient maintaining the non-breathing state, the third module transmits the physiological phenomenon information of the patient in the tension period collected by the physiological monitoring unit to the display unit.

[0046] According to a preferred embodiment, the chest detection unit can collect the pressure value generated during the dynamic change of the chest and combine it with the initial dimension value to obtain the changed chest dimension value, so as to sense the breathing posture and the trend of breathing posture changes of the chest.

[0047] According to a preferred embodiment, the abdominal detection unit can collect the pressure value generated during the dynamic change of the abdomen and combine it with the initial dimension value to obtain the changed abdominal dimension value, so as to sense the breathing posture and the trend of breathing posture changes of the abdomen.

[0048] Example 2

[0049] The present invention provides a Valsalva breathing pressure detection device, comprising a gas detection unit for generating a pressure value of the exhaled gas of a patient wearing the gas detection unit; a physiological monitoring unit for monitoring physiological changes of the body in different breathing actions; an abdominal detection unit for monitoring changes in abdominal dimension values caused by dynamic changes in abdominal expansion and contraction; a chest detection unit for monitoring changes in chest dimension values caused by dynamic changes in chest expansion and contraction; and a display unit configured to be able to display the human index data monitored by each module.

[0050] When a patient wearing the gas detection unit starts to perform an inhalation action, the abdominal detection unit can collect the abdominal dimension value of the patient during abdominal breathing; the gas detection unit detects the pressure value of the patient's exhaled gas in response to the reduction of the abdominal dimension value collected by the abdominal detection unit. After the pressure value reaches the first threshold, the abdominal detection unit and the chest detection unit monitor the abdominal dimension value and the chest dimension value of the patient based on the maintenance of the non-breathing state of the patient after exhalation; when there are no dynamic changes in the abdominal dimension value monitored by the abdominal detection unit and the chest dimension value monitored by the chest detection unit, in response to the pressure value reaching the first threshold, the physiological monitoring unit transmits the physiological phenomenon information of the patient in the straining phase collected to the display unit.

[0051] When a patient seeks medical treatment due to symptoms such as headache, the doctor needs to perform a bubble test to monitor microemboli. The bubble test includes air injection, the patient performing Valsalva breathing, and intracranial and intracardiac monitoring of the patient in the straining phase.

[0052] The doctor mixes 1 ml of air and 9 ml of normal saline and injects the mixture into the patient's body. The patient performs Valsalva breathing, forcing the blood flow to form a flow in the foramen ovale different from that in the resting period. Due to Valsalva breathing, the patient forms a straining phase and a release phase different from the resting period. In these two phases, if the patient has microemboli that can cause cerebral infarction, the number of bubbles in the heart can be known by monitoring.

[0053] In specific real-time operations, Valsalva breathing has an important impact on the positive rate of microemboli detection in patients. If Valsalva breathing is not standard, it is impossible to make the patient's blood flow form a straining phase and a release phase different from the resting period.

[0054] According to a preferred embodiment, the resting period refers to the state in which the patient is in normal breathing during daily life. The straining phase refers to the state in which the patient's diaphragm tightens, the glottis closes, and the thoracic pressure rises after performing Valsalva breathing. The release phase refers to the state in which the patient in the straining phase exhales gently and the diaphragm relaxes. A single straining phase and a single release phase constitute a complete Valsalva breathing process.

[0055] After injecting the mixture, the patient wears the gas detection unit, abdominal detection unit, and chest detection unit. After receiving the voice prompt, the patient inhales with the maximum capacity they can achieve. At this time, the abdominal detection unit detects the increased dimensional value of the patient's abdomen based on the change in the patient's abdominal posture. When the patient continues to inhale, the system can give a voice prompt to encourage inhalation until the patient stops the inhalation behavior or the dimensional value of the patient's abdomen no longer increases. At this time, the system determines that the patient has adopted diaphragmatic breathing and has made the correct preparation.

[0056] Before the patient exhales into the gas detection unit, they will first drive the abdominal movement and then exhale. Therefore, the abdominal detection unit will detect a decrease in the dimensional value of the patient's abdomen. The above change triggers the gas detection unit to detect the pressure value of the patient's exhaled gas. When the pressure of the exhaled gas reaches the first threshold, the abdominal detection unit and the chest detection unit can simultaneously monitor the patient's abdomen and chest. When the dimensional values of the patient's abdomen and chest do not change and the duration reaches the second threshold, the physiological monitoring unit intercepts the monitoring result of this physiological phenomenon and sends it to the display unit to provide effective monitoring data for the doctor.

[0057] When a patient in the tension phase exhales based on the doctor's instruction and enters the release phase, the physiological monitoring unit collects the same physiological phenomenon information as that of the patient in the tension phase in response to the decrease in the dimensional value of the abdomen collected by the abdominal detection unit and sends it to the display unit.

[0058] At the same time, after receiving the effective data in the tension phase, the patient can slowly exhale based on the prompt of the doctor's or system's voice and enter the release phase. At this time, the dimensional values of the patient's abdomen and chest decrease based on the exhalation action. Based on the change in the decrease in the dimensional value of the abdomen collected by the abdominal detection unit, the physiological monitoring unit sends the physiological monitoring data generated in the above process to the display unit.

[0059] According to a preferred embodiment, when the abdominal posture changes, the abdominal detection unit can obtain the change in the abdominal dimensional value through the pressure sensing change on the airbag or the binding belt, that is, the abdominal detection unit extracts the abdominal dimensional value from the abdominal movement information in combination with the abdominal posture information.

[0060] According to a preferred embodiment, when the chest posture changes, the chest detection unit can obtain the change in the chest dimensional value through the pressure sensing change on the airbag or the binding belt, that is, the chest detection unit extracts the chest dimensional value from the chest movement information in combination with the chest posture information.

[0061] According to a preferred embodiment, when a patient wearing the gas detection unit starts an inhalation action, the gas detection unit responds to detect the pressure value of the exhaled gas of the patient in response to a dynamic trend in which a numerical set including the chest dimension value detected by the chest detection unit and the abdominal dimension value detected by the abdominal detection unit simultaneously increases for the purpose of determining that the patient makes a correct abdominal breathing exhalation preparation.

[0062] According to a preferred embodiment, the abdominal detection unit responds to the action of the patient wearing the gas detection unit to change from the standby state to the working state of collecting the abdominal dimension value of the patient, so that the working state of the respiratory pressure detection device is not affected by the patient wearing the abdominal detection unit and in the non-detection time. During the information collection process, it may be necessary to repeat it multiple times, and during this process, the abdominal detection unit and the chest detection unit will not be repeatedly worn. Therefore, this system can distinguish the detection time and the non-detection time based on whether the patient wears the gas detection unit.

[0063] When the continuous time during which the gas pressure value is lower than the first threshold reaches the second threshold, the display unit prompts the patient to re-prepare for abdominal breathing based on the abdominal detection unit and the chest detection unit returning to the standby state. Since Valsalva breathing requires abdominal breathing, and when the patient prepares for Valsalva breathing, the abdominal detection unit and the chest detection unit do not detect an increase in the dimension values of the two parts, it is considered that the patient's breathing method is incorrect and returns to the standby state. At the same time, since the patient's exhalation time is limited, when the gas pressure value is lower than the first threshold for a period of time, in order to prevent the patient's continuous exhalation from causing an oxygen deficiency problem, it is recommended to re-perform Valsalva breathing after rest. Therefore, in response to the continuous time during which the gas pressure value is lower than the first threshold reaching the second threshold, the abdominal detection unit and the chest detection unit return to the standby state. In response to the abdominal detection unit and the chest detection unit returning to the standby state, the display unit prompts the doctor and the patient that the current collection process has failed and can be restarted at an appropriate time. Preferably, the first threshold is in the range of 2 s to 10 s.

[0064] According to a preferred embodiment, the abdominal detection unit includes an abdominal belt that surrounds the patient's abdomen and an abdominal belt displacement detector disposed on the abdominal belt. When the patient is breathing, the abdominal dimension value of the patient is obtained through the displacement of the abdominal belt displacement detector disposed on the patient's abdomen when the patient's abdomen bulges or tightens. The chest detection unit includes a chest belt that surrounds the patient's chest and a chest belt displacement detector disposed on the chest belt. When the patient is breathing, the chest dimension value of the patient is obtained through the displacement of the chest belt displacement detector disposed on the patient's chest when the patient's chest bulges or tightens. The changing trends of the abdomen and chest are directly obtained through the displacement changes. Since the detection of the abdomen and chest in the present invention does not require precise numerical values but needs to know the changing trends of the abdomen and chest, the abdominal belt and chest belt that do not generate pressure will bring a more superior sense of comfort to the patient.

[0065] According to a preferred embodiment, the gas detection unit includes a pressure detection component, which can detect the gas pressure of the patient's exhaled breath by receiving the gas from the patient's mouth and generate a corresponding pressure value. Specifically, the gas detection unit can include a pressure gauge, a mouthpiece, and a control valve. The patient can transmit the gas to the pressure gauge through the mouthpiece, and the pressure gauge can detect the exhalation pressure of the patient. The control valve is used to adjust the working state of the gas detection unit.

[0066] According to a preferred embodiment, the physiological monitoring unit is provided with a pulsed Doppler and monitors the blood flow spectrum of the tricuspid valve orifice of the patient during the tension period. Preferably, the physiological monitoring unit can also perform imaging detection on the blood flow of the patent foramen ovale in the heart or monitor the microembolic signals of the cerebral arteries.

[0067] Based on the four modules involved in this system, the present invention relates to a Valsalva respiration pressure detection method, which includes the following steps:

[0068] When the patient wearing the gas detection unit starts to perform a thoracic cavity pressurization action to prepare for checking the physiological state of the internal tissues, the abdominal detection unit can collect the abdominal dimension value of the patient during abdominal breathing; the gas detection unit detects the pressure value of the patient's exhaled gas in response to the reduction of the abdominal dimension value collected by the abdominal detection unit; after the pressure value reaches the first threshold, the abdominal detection unit and the chest detection unit monitor the abdominal dimension value and the chest dimension value of the patient based on the maintenance of the patient's non-breathing state after exhalation; when the abdominal dimension value monitored by the abdominal detection unit and the chest dimension value monitored by the chest detection unit do not change dynamically, the physiological monitoring unit that responds to the pressure value reaching the first threshold transmits the physiological phenomenon information of the patient in the tension period collected to the control module.

[0069] It should be noted that the above specific embodiments are exemplary. Those skilled in the art can come up with various solutions inspired by the disclosure of the present invention, and these solutions also fall within the scope of the disclosure of the present invention and within the protection scope of the present invention. Those skilled in the art should understand that the specification and drawings of the present invention are illustrative and do not constitute a limitation on the claims. The protection scope of the present invention is defined by the claims and their equivalents. The specification of the present invention contains multiple inventive concepts. Phrases such as "preferably", "according to a preferred embodiment", or "optionally" indicate that the corresponding paragraphs disclose an independent concept. The applicant reserves the right to file divisional applications based on each inventive concept. Throughout the text, the features guided by "preferably" are only an optional way and should not be understood as being required to be provided. Therefore, the applicant reserves the right to waive or delete relevant preferred features at any time.

Claims

1. A Valsalva breathing pressure detection device, comprising a chest detection unit for collecting chest posture information including chest dimension values; an abdominal detection unit for collecting abdominal posture information including abdominal dimension values based on the chest posture information of the chest detection unit, thereby forming a collaborative detection of abdominal breathing; a gas detection unit for generating a pressure value of the exhaled gas of a patient wearing the gas detection unit in response to the same change trend of the chest posture information provided by the chest detection unit and the abdominal posture information formed by the abdominal detection unit; wherein, in response to the reduction of the abdominal dimension value collected by the abdominal detection unit for collecting abdominal posture information including abdominal dimension values, the gas detection unit detects the pressure value of the exhaled gas of the patient; after the pressure value detected by the gas detection unit for generating the pressure value of the exhaled gas of a patient wearing the gas detection unit reaches a first threshold, the abdominal detection unit for collecting abdominal posture information including abdominal dimension values and the chest detection unit for collecting chest posture information including chest dimension values monitor the abdominal posture and chest posture of the patient, so as to ensure that the patient completes the physiological detection in a state of holding breath after exhalation.

2. The detection device according to claim 1, wherein, after the pressure value of the exhaled gas of the patient provided by the gas detection unit reaches the first threshold, in response to the fact that neither the abdominal dimension value related to the abdominal inhalation of the patient monitored by the abdominal detection unit nor the chest dimension value related to the chest inhalation of the patient monitored by the chest detection unit has changed dynamically, a physiological monitoring unit for performing physiological detection on the patient in the Valsalva breathing process transmits the collected physiological index data of the patient in the tension phase to a display unit for displaying the physiological index data to a doctor.

3. The detection device according to claim 2, wherein, when a patient in the tension phase exhales based on a doctor's instruction and enters the release phase, the physiological monitoring unit collects the same physiological index data as that of the patient in the tension phase in response to the same change trend that the chest posture information provided by the chest detection unit and the abdominal posture information formed by the abdominal detection unit both increase, and transmits the data to the display unit for displaying the physiological index data to a doctor.

4. The detection device according to claim 1, wherein, when a patient wearing the gas detection unit starts a thoracic cavity pressurization action for preparing to check the physiological state of internal tissues, the gas detection unit detects the pressure value of the exhaled gas of the patient in response to the same dynamic trend that a numerical set including the chest dimension value detected by the chest detection unit and the abdominal dimension value detected by the abdominal detection unit increases for the purpose of determining the correct abdominal breathing exhalation preparation of the patient.

5. The detection device according to claim 1, wherein, The abdominal detection unit switches from the standby state to the working state of collecting the abdominal dimension values of the patient in response to the action of the patient wearing the gas detection unit, so that the working state of the detection device is not affected by the patient wearing the abdominal detection unit and being in a non-detection time.

6. The detection device according to claim 1, wherein, the abdominal detection unit includes an abdominal belt surrounding the patient's abdomen and an abdominal belt displacement detector disposed on the abdominal belt. When the patient is breathing and the abdomen bulges or tightens, the abdominal dimension value of the patient is obtained through the displacement of the abdominal belt displacement detector disposed on the patient's abdomen on the abdominal belt.

7. The detection device according to claim 1, wherein, the chest detection unit includes a chest belt surrounding the patient's chest and a chest belt displacement detector disposed on the chest belt. When the patient is breathing and the chest bulges or tightens, the chest dimension value of the patient is obtained through the displacement of the chest belt displacement detector applied to the patient's abdomen on the chest belt.

8. The detection device according to claim 2, wherein, when the gas pressure value formed in the first exhalation action of the patient's single Valsalva breath detected by the gas detection unit is lower than the first threshold and the continuous time when the gas pressure value is lower than the first threshold reaches the second threshold, the abdominal detection unit and the chest detection unit return to the standby state and trigger the display unit to prompt the doctor and the patient to restart the single Valsalva breath.

9. The detection device according to claim 2, wherein, the physiological monitoring unit is provided with a pulsed Doppler and monitors the blood flow spectrum of the tricuspid valve orifice of the patient when the patient is in the systolic phase.

10. A Valsalva breath pressure detection method, wherein, comprising: in response to the reduction of the abdominal dimension value collected by the abdominal detection unit for collecting the abdominal posture information including the abdominal dimension value, the gas detection unit detects the pressure value of the patient's exhaled gas; after the pressure value detected by the gas detection unit for generating the pressure value of the exhaled gas of the patient wearing the gas detection unit reaches the first threshold, the abdominal detection unit for collecting the abdominal posture information including the abdominal dimension value and the chest detection unit for collecting the chest posture information including the chest dimension value monitor the abdominal posture and the chest posture of the patient, so as to ensure that the patient completes the physiological detection in a state of holding breath after exhalation; when the pressure value of the patient's exhaled gas detected by the gas detection unit reaches the first threshold, in response to the fact that neither the abdominal dimension value related to the patient's abdominal inhalation monitored by the abdominal detection unit nor the chest dimension value related to the patient's chest inhalation monitored by the chest detection unit has dynamic changes, the physiological monitoring unit for performing physiological detection on the patient in the Valsalva breath process transmits the physiological index data of the patient in the systolic phase collected to the display unit for displaying the physiological index data to the doctor.

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