A ventilation therapy device flow adjustment method and ventilation therapy device

Abstract

The embodiment of the present invention provides a flow regulation method for ventilation therapy equipment and ventilation therapy equipment, including: detecting the current breathing parameters of the user, and determining the current breathing state of the user according to the breathing parameters; then outputting with a corresponding flow output value according to the current breathing state of the user; after controlling the output valve according to the flow output value, obtaining the breathing parameters of the user again, and adjusting the flow value of the output valve according to the change of the breathing parameters; by monitoring the breathing state of the user, adjusting the output airflow flow value of the equipment in real time, specifying different ventilator output working plans according to the breathing needs of different users, so as to solve the problem in the prior art that the adjustment result of the preset algorithm of the equipment is too uniform and the support for the different needs of different users is poor.

Description

Technical Field

[0001] The present invention relates to the technical field of medical equipment, and in particular to a flow regulation method for ventilation therapy equipment, ventilation therapy equipment, electronic equipment and a readable storage medium. Background Art

[0002] The ventilator is a widely used medical auxiliary device. In clinical applications, it has important application value in the treatment of respiratory diseases, anesthesia respiratory management during major surgery, respiratory support therapy, and emergency resuscitation. In order to meet the needs of different users' physiques and application scenarios, the ventilator needs to have adaptive adjustment means for the output airflow rate.

[0003] In the related art, an automatic airflow (Autoflow) mode is used to provide service support for ventilation therapy equipment used by patients; the user's peak respiratory flow rate is detected by a flow sensor inside the device, and the output airflow flow of the device is adaptively adjusted through a specific algorithm.

[0004] However, in the existing technical solutions, the specific value of the airflow adjustment output by the ventilator is only defined by the device according to a predetermined algorithm. The result of the preset algorithm adjustment is too uniform and has poor support for the different needs of different users in different individual states. Summary of the invention

[0005] The embodiments of the present invention provide a flow regulation method for a ventilation therapy device, a ventilation therapy device, an electronic device and a readable storage medium to solve the problem that the airflow regulation result output by the ventilator is single and the usability for different individuals is poor in the prior art solutions.

[0006] In a first aspect, an embodiment of the present invention provides a method for regulating flow of a ventilation therapy device, comprising:

[0007] Detect the user's current breathing parameters and obtain the input supported flow range; the breathing parameters include: the peak value of the flow rate of the user's breathing, and the breathing frequency;

[0008] The user's current breathing state is determined according to the breathing frequency and the flow rate peak value; the supported flow range is a flow range determined according to the user's current breathing state and meeting the user's breathing needs;

[0009] Determining a flow output value corresponding to the current breathing state of the user according to the supported flow range and the current breathing state of the user;

[0010] Control the output valve of the ventilation therapy device to output a corresponding flow output value.

[0011] In a second aspect, an embodiment of the present invention provides a ventilation therapy device, comprising:

[0012] The ventilation therapy device comprises: a device body, a breathing circuit, a user interface, an output valve and a control module;

[0013] The device body is used to output gas of preset pressure and preset flow rate through the output end, and the breathing tube includes a first end and a second end that are connected to each other, and the first end of the breathing tube is connected to the output end;

[0014] The second end of the breathing circuit is connected to the user interface, and the user interface is used to be worn in the nasal cavity of the user. When the user interface is worn in the nasal cavity of the user, an air outlet gap is provided between the user interface and the nasal cavity of the user;

[0015] The control module is used to: detect the user's current breathing parameters, which include: the peak value of the flow rate wave of the user's breathing, and the time interval between two adjacent flow rate wave peaks; calculate the breathing frequency according to the time interval between two adjacent flow rate wave peaks, and determine the user's current breathing state according to the breathing frequency and the flow rate wave peaks; determine the flow output value corresponding to the user's current breathing state; and after controlling the output valve according to the flow output value, obtain the user's updated breathing parameters and adjust the flow value of the output valve.

[0016] In a third aspect, an embodiment of the present invention provides an electronic device, including: a processor;

[0017] a memory for storing instructions executable by the processor;

[0018] The processor is configured to execute the command to implement the method.

[0019] In a fourth aspect, an embodiment of the present invention provides a readable storage medium, which, when instructions in the readable storage medium are executed by a processor of an electronic device, enables the electronic device to execute the method.

[0020] In an embodiment of the present invention, the current breathing parameters of the user are first detected according to the ventilation therapy device, and the supported flow range for the device input is obtained; the breathing parameters include: the peak-to-peak value of the flow rate of the user's breathing, and the breathing frequency of the user; the current breathing state of the user is determined based on the breathing frequency and the peak-to-peak value of the flow rate, and then the corresponding flow output value is output according to the current breathing state of the user; the output airflow flow value of the device is adjusted by monitoring the user's breathing state, and different ventilator output working plans are specified according to the breathing needs of different users, so as to solve the problem in the prior art that the result of the adjustment of the preset algorithm of the device is too uniform and the support for the different needs of different users is poor.

[0021] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention, it can be implemented according to the contents of the specification. In order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present invention. Moreover, the same reference symbols are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:

[0023] Figure 1 It is a simplified flow chart of steps for implementing a method for regulating flow of a ventilation therapy device provided by an embodiment of the present invention;

[0024] Figure 2 is a user breathing airflow change curve diagram provided by an embodiment of the present invention;

[0025] Figure 3 This is a complete flow chart of the steps of a method for regulating flow of a ventilation therapy device provided by an embodiment of the present invention;

[0026] Figure 4 It is another complete embodiment step flow chart of a method for regulating flow of a ventilation therapy device provided by an embodiment of the present invention;

[0027] Figure 5 It is another complete embodiment step flow chart of a method for regulating flow of a ventilation therapy device provided by an embodiment of the present invention;

[0028] Figure 6 It is another complete embodiment step flow chart of a method for regulating flow of a ventilation therapy device provided by an embodiment of the present invention;

[0029] Figure 7 It is another complete embodiment step flow chart of a method for regulating flow of a ventilation therapy device provided by an embodiment of the present invention;

[0030] Figure 8 It is another complete embodiment step flow chart of a method for regulating flow of a ventilation therapy device provided by an embodiment of the present invention;

[0031] Fig. 9 It is another complete embodiment step flow chart of a method for regulating flow of a ventilation therapy device provided by an embodiment of the present invention;

[0032] Fig.10 This is a schematic diagram of the composition relationship of functional components of a ventilation therapy device provided by an embodiment of the present invention;

[0033] Fig.11 is a relationship diagram of functional components of an electronic device provided by an embodiment of the present invention;

[0034] Fig.12 It is a composition diagram of a readable storage medium provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0035] The exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided in order to enable a more thorough understanding of the present invention and to enable the scope of the present invention to be fully communicated to those skilled in the art.

[0036] The following describes in detail a flow regulation method for ventilation therapy equipment provided by the present invention by listing several specific embodiments.

[0037] Figure 1 This is a simplified flow chart of steps for implementing a method for regulating flow of a ventilation therapy device provided by an embodiment of the present invention. The method may include:

[0038] Step 101, detecting the current breathing parameters of the user, and obtaining the input supported flow range; the breathing parameters include: the peak value of the flow rate of the user's breathing, and the breathing frequency.

[0039] In an embodiment of the present invention, a method for regulating the flow of a ventilation therapy device is provided, which can adaptively and dynamically adjust the working mode according to the physical condition of the user; first, a ventilation connection is established between the ventilation therapy device and the user through the breathing circuit, and the user receives the airflow output by the device by wearing the interface at the end of the circuit to the nasal cavity. At the same time, the device end can also receive the breath changes during the user's breathing process through the circuit; in an embodiment of the present invention, the control module of the device is provided with a flow sensor, which can monitor the changes in the user's respiratory airflow value in real time.

[0040] Reference Figure 2 , Figure 2 is a user breathing airflow change curve diagram provided by an embodiment of the present invention; Figure 2As shown, it includes: flow rate peak value 201, peak time interval line 202, standard output value line 203, non-standard output value line 204, and redundant flow value line 205; the curve graph has a two-dimensional reference coordinate, wherein the horizontal axis is used to represent time, and the vertical axis is used to represent a specific airflow flow value. The detected user's breathing airflow value changes according to time to generate a corresponding monitoring curve; in this process, the ventilation therapy equipment mainly obtains: the flow rate peak value of the user's breathing, and the time interval between two adjacent flow rate peak values, two breathing parameters; after calculating the number of occurrences of the time interval between the flow rate peaks obtained in a unit time and rounding it, the user's breathing frequency can be obtained, for example: within a one-minute detection cycle, a total of 19 breathing flow rate peaks appear, and there are 18 peak time interval lines 202 between the corresponding peaks, and the current user's breathing frequency can be obtained as 18 times / min.

[0041] In practical applications, the air flow rate can be obtained by detecting the air flow velocity and the geometric parameters of the pipeline; the flow rate is proportional to the pipeline section (cross section) and the flow velocity, and is expressed by the calculation formula: Q = S·V, where Q represents the obtained air flow rate in cubic meters per hour (m 3 / h), S represents the area of ​​the pipeline used to connect the air flow source and the monitoring unit, in square meters (m 2 ), V represents the average velocity of the fluid in meters per second (m / s).

[0042] The user's current breathing state can be further obtained based on the breathing parameters detected, and then different airflow output schemes corresponding to different breathing states can be matched. The output airflow value of the device can be adaptively adjusted by controlling the output valve of the device to meet the different breathing needs of different users.

[0043] Step 102, determining the user's current breathing state according to the breathing frequency and the flow rate peak value; the supported flow range is a flow range determined according to the user's current breathing state and meeting the user's breathing needs.

[0044] Reference Figure 2, wherein the flow rate peak value line 201 indicates the user's respiratory airflow peak value during a steady-state detection time period, that is, the maximum value of the airflow flowing through the nasal cavity during a single breathing action of the user; the peak time interval line 202 indicates the time interval between the flow rate peak values ​​of two adjacent breaths on the detection curve. In the embodiment of the present invention, it is considered that the time interval between the flow rate peak values ​​of every two breaths of the user in a stable state is approximately equal; therefore, the reciprocal of the single time interval value can be taken to obtain the target breathing frequency, which is used to characterize the total number of complete breaths completed by the user within a fixed time period, such as detecting the target breathing frequency per minute, in units of times / minute.

[0045] Furthermore, the user's current breathing state is determined based on the breathing frequency and the flow rate peak value; in an embodiment of the present invention, medical personnel can set different breathing parameter judgment thresholds for the ventilation therapy equipment, and determine the user's current breathing state by comparing the detected breathing parameters with the preset thresholds.

[0046] Optionally, step 102 may specifically include:

[0047] Sub-step 1021, respectively comparing the magnitude relationship between the respiratory frequency and the first frequency threshold and the second frequency threshold, and the magnitude relationship between the flow velocity peak value and the first flow velocity threshold and the second flow velocity threshold, to obtain a comparison result;

[0048] The user's current breathing state is determined jointly according to the breathing frequency and flow rate peak value obtained in step 102; the user's breathing state is determined by comparing the size relationship between the breathing frequency and the preset frequency threshold, and the size relationship between the flow rate peak value and the flow rate threshold.

[0049] Wherein, the first frequency threshold is greater than the second frequency threshold, and the first flow rate threshold is less than the second flow rate threshold;

[0050] In an optional implementation scheme provided in an embodiment of the present invention, the first frequency threshold set for respiratory rate judgment is 20 times per minute (20Bpm, 20Beat Per Second), and the second frequency threshold is 12 times per minute (12Bpm, 12Beat Per Second); similarly, the first flow rate threshold set for flow rate peak value judgment is 20 liters per minute (20L / min, 20Liter per minute), and the second flow rate threshold is 35 liters per minute (35L / min, 35Liter perminute); for different evaluation criteria used by different medical personnel, the above thresholds can be adaptively adjusted according to actual conditions, and the embodiment of the present invention does not make specific limitations.

[0051] Sub-step 1022, determining the user's current breathing state based on the comparison result.

[0052] From the above content, it can be seen that the first frequency threshold and the second frequency threshold can constitute three threshold intervals; namely, the breathing frequency is less than 12Bpm, the breathing frequency is greater than 12Bpm and less than 20Bpm, and the breathing frequency is greater than 20Bpm; similarly, the first flow rate threshold and the second flow rate threshold can also constitute three threshold intervals; namely, the flow rate peak-to-peak value is less than 20L / min, the flow rate peak-to-peak value is greater than 20L / min and less than 35L / min, and the flow rate peak-to-peak value is greater than 35L / min; the two obtained breathing parameters are compared with the threshold to determine which threshold and which type of interval the current breathing parameter is in, thereby judging the user's current breathing state.

[0053] Step 103: determining a flow output value corresponding to the current breathing state of the user according to the supported flow range and the current breathing state of the user.

[0054] For users in different breathing states, medical personnel can preset output schemes corresponding to different states for the ventilation therapy equipment, which correspond to different breathing adaptation schemes adopted by medical personnel for users with different breathing needs in actual applications; in the ventilation therapy equipment flow control method provided in the embodiment of the present invention, the output value corresponding to the flow of the target output valve finally controlled by the ventilation therapy equipment mainly includes: a basic flow value, a preset support flow value and a preset redundant flow value; wherein, the basic flow value represents the basic flow that meets the user's current breathing state; the preset support flow value is the breathing scheme flow value set by the medical staff for the user to meet the breathing needs, and its specific value is within the acquired support flow range and is determined according to the detected breathing state. Medical personnel can adaptably change it for users with different breathing needs; the redundant flow value is a safety value set by the medical staff for the ventilation therapy equipment. In actual applications, the peak value of the user's expiratory flow rate may have a slight fluctuation. Setting a safety value can ensure that the user's breathing needs are continuously met within the slight floating range.

[0055] Specifically, refer to Figure 2 , Figure 2 In the respiratory airflow change curve shown in FIG. 1 , the horizontal position of the non-standard output value mark line 204 is obviously lower than the peak value of the user's respiratory flow rate, and cannot meet the user's basic breathing needs in actual applications. The horizontal position of the standard output value mark line 203 is already higher than the peak value of the expiratory flow rate. The preset redundant flow value is added above the peak value of the flow rate 201. Figure 2 As shown, there is a redundant flow value line 205 between the standard output value mark line 203 and the flow rate peak value 201 .

[0056] For example, in an optional implementation scheme provided in an embodiment of the present invention, the corresponding flow output value currently obtained according to the detected respiratory parameters is composed of a basic flow value, a preset support flow value and a preset redundant flow value; wherein, the current respiratory flow rate peak-to-peak value of the user detected by the device end is 20L, and the preset support flow value set by the medical staff for the user's respiratory needs is 30L, so the flow output value finally set to be output by the ventilation therapy device control output valve is: respiratory flow rate peak-to-peak value 20L+preset support flow value 30L+preset redundant flow value 5L=55L.

[0057] Step 104, controlling the output valve of the ventilation therapy device to output a corresponding flow output value.

[0058] , the device will output at the set flow output value to meet the user's breathing needs; for users with different breathing states, the breathing state is matched by detecting the breathing parameters, and the target flow output value is determined according to the correspondence between the preset breathing state and the flow output value. This enables the ventilation therapy equipment to cope with different usage scenarios and different users. It can output in the best mode to meet the differentiated needs of different individuals.

[0059] In an optional embodiment, the method further includes:

[0060] Step 105, obtaining the breathing parameters updated by the user.

[0061] After controlling the ventilation therapy equipment to control the output valve to output with the flow output value corresponding to the current respiratory state, the subsequent changes in the user's respiratory state are continuously detected, and the output valve is controlled again to adjust the flow output value according to the changes in the respiratory frequency and the peak value of the respiratory flow rate in the above-mentioned respiratory parameters to adapt to the user's state changes; for example: for users whose breathing state tends to be normal, the preset support flow value can be appropriately reduced. Conversely, for users whose breathing state changes are not optimistic, the preset support flow needs to be appropriately increased to meet breathing needs.

[0062] The flow regulation method for ventilation therapy equipment provided in an embodiment of the present invention, after initially detecting the user's breathing state to match the corresponding flow output value for output, also continuously and adaptively adjusts the total output flow of the equipment based on the flow output value and the user's breathing feedback result, and dynamically adjusts the airflow output value of the equipment with the control module as the core to meet the user's current breathing needs at all times.

[0063] In an optional embodiment, the method further includes:

[0064] Step 106: adjusting the flow value of the output valve according to the updated breathing parameter.

[0065] In an embodiment of the present invention, the flow value of the output valve is adjusted according to the updated breathing parameters; specifically, the new breathing frequency and peak-to-peak values ​​of the breathing flow rate obtained by detecting the breathing parameters are compared with the previously detected breathing parameters, and the corresponding output valve control scheme is adopted according to the changes in the breathing parameters to re-adjust the flow output value.

[0066] For users who have accepted the preliminary breathing output plan, feedback on their state changes is an important part of the adaptive dynamic adjustment of the embodiments of the present invention; the synchronous adjustment of breathing parameter detection and control is realized through the control module to achieve real-time adaptation to the user's state changes; for users whose breathing state tends to be normal, there is no need to receive excess preset flow for supply, and real-time adjustment can match the current best output plan for the user while reducing unnecessary resource consumption; on the contrary, for users whose breathing state changes are not optimistic, it is necessary to continue to add the corresponding flow output value in real time to provide them with an optimized breathing adaptation plan.

[0067] In summary, a method for regulating the flow of a ventilation therapy device provided in an embodiment of the present invention first detects the current breathing parameters of the user according to the ventilation therapy device, and obtains the supported flow range for the device input; the breathing parameters include: the peak-to-peak value of the flow velocity of the user's breathing, and the breathing frequency of the user; the current breathing state of the user is determined jointly according to the breathing frequency and the peak-to-peak value of the flow velocity, and then outputs the flow output value at the corresponding value according to the current breathing state of the user; the output airflow flow value of the device is adjusted by monitoring the user's breathing state, and different ventilator output working plans are specified according to the breathing needs of different users, so as to solve the problem in the prior art that the result of the adjustment of the preset algorithm of the device is too uniform and the support for the different needs of different users is poor.

[0068] Figure 3 is a complete flow chart of the steps of a method for regulating the flow of a ventilation treatment device provided by an embodiment of the present invention, such as Figure 3 As shown, the method includes:

[0069] Step 301, detecting the user's current breathing parameters, and obtaining an input supported flow range; the breathing parameters include: the peak value of the flow rate of the user's breathing, and the breathing frequency.

[0070] The specific implementation process of this step can refer to the above step 101, and will not be repeated here in this embodiment.

[0071] Step 302, determine the user's current breathing state based on the breathing frequency and the flow rate peak value; if the target breathing frequency is greater than the first frequency threshold and the flow rate peak value is less than the first flow rate threshold, the breathing state is judged to be a shallow and rapid breathing state.

[0072] The shallow and rapid breathing state is used to refer to: a breathing state in which the breathing amplitude becomes shallower and the breathing rhythm accelerates, and the corresponding breathing parameters are a decrease in the peak value of the respiratory flow rate wave and a faster breathing frequency; specifically, in an optional implementation scheme of an embodiment of the present invention, the breathing parameters corresponding to the shallow and rapid breathing state are set as: when the target respiratory frequency is greater than the first frequency threshold and the peak value of the flow rate wave is less than the first flow rate threshold, that is, the breathing frequency is greater than 20Bpm and the peak value of the respiratory flow rate wave is less than 20L / min, then the current user's breathing state is judged to be a shallow and rapid breathing state.

[0073] In practical applications, the judgment criteria for different respiratory states can be adaptively adjusted by medical staff according to actual conditions and work experience, and the embodiments of the present invention do not limit this.

[0074] Step 303: determine the flow output value corresponding to the user's current breathing state.

[0075] The specific implementation process of this step can refer to the above step 103, and will not be repeated here in this embodiment.

[0076] Optionally, step 303 may specifically include:

[0077] Sub-step 3031, based on the correspondence between the breathing state and the value of the supported flow range, determine the target supported flow value corresponding to the user's current breathing state from the supported flow range, and calculate the flow output value corresponding to the current breathing state through the target supported flow value.

[0078] Continuing from step 302, after determining that the current user's breathing state is a shallow and rapid breathing state, the flow output value corresponding to the shallow and rapid breathing state can be matched; in an embodiment of the present invention, for a user in a shallow and rapid breathing state, the corresponding target supported flow value is: the middle value of a preset supported flow range, and the flow output value corresponding to the current breathing state is calculated by the target supported flow value, and the specific flow output value is composed of: the sum of the middle value of the preset supported flow range, the basic flow value, and the preset redundant flow value.

[0079] In an embodiment of the present invention, the preset support flow set by medical personnel is a range value, having an upper limit value and a lower limit value; for example, in a preferred embodiment, in the flow output value corresponding to a user in a shallow and rapid breathing state, the upper limit value of the preset support flow value is set to 30L, and the lower limit value is set to 10L, then the middle value of the preset support flow range is (10L+30L) / 2=20L, and the final corresponding flow output value is specifically: respiratory flow rate peak value 20L+the middle value of the preset support flow range 20L+the preset redundant flow value 5L=45L.

[0080] Step 304: Control the output valve of the ventilation therapy device to output a corresponding flow output value.

[0081] The specific implementation process of this step can refer to the above step 104, and will not be repeated here in this embodiment.

[0082] Step 305, obtaining the breathing parameters updated by the user.

[0083] The specific implementation process of this step can refer to the above step 105, and will not be repeated here in this embodiment.

[0084] Step 306: adjusting the flow value of the output valve according to the updated breathing parameter.

[0085] The specific implementation process of this step can refer to the above step 106, and will not be repeated here in this embodiment.

[0086] Step 307, if the user's breathing frequency increases or remains unchanged, or the peak value of the flow rate of the user's breathing decreases or remains unchanged, the output flow value of the output valve is increased at a first preset rate until the first target support flow value reaches the upper limit of the support flow range, or the user's breathing frequency is within the normal frequency range.

[0087] After determining that the ventilation therapy device outputs the flow rate value described in step 303, the ventilation therapy device outputs airflow to the user at this value; within a certain period of time, if the user's breathing parameters change, the device will adjust the device output valve according to the changed breathing parameters to control the flow output value to change accordingly; if the user's breathing frequency is higher than or equal to his breathing frequency at the previous moment (that is, the breathing frequency detected before determining the flow output value), or the peak value of the user's breathing flow rate decreases or remains unchanged, the device's support flow rate will be increased accordingly at a first preset rate until the support flow rate value reaches the upper limit of the support flow rate range, or the user's breathing frequency is within the normal frequency range and then stops; in an optional implementation scheme of an embodiment of the present invention, the first preset rate is specifically set as: adjusting the preset support flow value at a frequency of once every 5 minutes, with a speed of 10 liters per minute (10L / min).

[0088] Step 308, if the user's breathing frequency decreases, or the peak value of the flow rate of the user's breathing increases, the output flow value of the output valve is reduced at a second preset rate until the user's breathing frequency is within the normal frequency range, or the peak value of the flow rate of the user's breathing is within the normal flow rate range.

[0089] On the contrary, if the user's average breathing frequency is lower than the breathing frequency at the previous moment, or the peak-to-peak value of the user's breathing flow rate rises, it means that the flow output value previously set by the device has taken effect, and the support flow of the device is reduced by the output flow value of the output valve at a second preset rate until the user's breathing frequency is in the normal frequency range (it is generally believed that the breathing frequency is between 12-20 times per minute as the normal breathing frequency), or the peak-to-peak value of the user's breathing flow rate is in the normal flow rate range (it is generally believed that the peak-to-peak value of the breathing flow rate is between 20L-35L as the normal breathing flow rate peak) and then stop; in an optional implementation scheme of an embodiment of the present invention, the second preset rate is specifically set as: adjust the preset support flow value at a frequency of once every 30 minutes, at a speed of 5 liters per minute (5L / min), and then repeat the above steps until the detected breathing frequency tends to normal and the adjustment can be stopped.

[0090] In summary, a method for regulating the flow of a ventilation therapy device provided in an embodiment of the present invention first detects the current breathing parameters of the user according to the ventilation therapy device, and the breathing parameters include: the peak value of the flow velocity wave peak of the user's breathing, and the time interval between two adjacent flow velocity wave peaks; the target breathing frequency is calculated according to the time interval between two adjacent flow velocity wave peaks, and the current breathing state of the user is determined jointly according to the breathing frequency and the peak value of the flow velocity wave peak, and then outputs the flow at a corresponding output value according to the current breathing state of the user; after controlling the output valve according to the flow output value, the breathing parameters of the user are obtained again, and the flow value of the output valve is adjusted according to the change of the breathing parameters; the output airflow flow value of the device is adjusted in real time by monitoring the breathing state of the user, and different ventilator output working schemes are specified for different users' breathing conditions, so as to solve the problem in the prior art that the result of the adjustment of the preset algorithm of the device is too uniform and the support for the different needs of different users is poor.

[0091] Figure 4 FIG. 1 is another complete flow chart of a method for regulating flow of a ventilation therapy device provided by an embodiment of the present invention. Figure 4 As shown, the method includes:

[0092] Step 401, detecting the current breathing parameters of the user, and obtaining the input supported flow range; the breathing parameters include: the peak value of the flow rate of the user's breathing, and the breathing frequency.

[0093] The specific implementation process of this step can refer to the above step 101, and will not be repeated here in this embodiment.

[0094] Step 402, determine the user's current breathing state based on the breathing frequency and the flow rate peak value; if the target breathing frequency is less than the second frequency threshold and the flow rate peak value is less than the first flow rate threshold, the breathing state is judged to be a shallow and slow breathing state.

[0095] The shallow and slow breathing state is used to refer to: a breathing state in which the breathing amplitude becomes shallower and the breathing rhythm slows down; the corresponding breathing parameters are a decrease in the peak value of the respiratory flow rate and a slow breathing rate; specifically, in an optional implementation scheme of the embodiment of the present invention, the breathing parameters corresponding to the shallow and slow breathing state are set as follows: when the target respiratory frequency is less than the second frequency threshold and the peak value of the flow rate is less than the first flow rate threshold, that is, the breathing frequency is less than 12Bpm and the peak value of the respiratory flow rate is less than 20L / min, then the current user's breathing state is judged to be a shallow and slow breathing state.

[0096] In practical applications, the judgment criteria for different respiratory states can be adaptively adjusted by medical staff according to actual conditions and work experience, and the embodiments of the present invention do not limit this.

[0097] Step 403, determining the flow output value corresponding to the user's current breathing state.

[0098] The specific implementation process of this step can refer to the above step 103, and will not be repeated here in this embodiment.

[0099] Optionally, step 403 may specifically include:

[0100] Sub-step 4031, based on the correspondence between the breathing state and the value of the supported flow range, determines the target supported flow value corresponding to the user's current breathing state from the supported flow range, and calculates the flow output value corresponding to the current breathing state through the target supported flow value.

[0101] Continuing from step 402, after determining that the current user's breathing state is a shallow and slow breathing state, the flow output value corresponding to the shallow and slow breathing state can be matched; in an embodiment of the present invention, for a user in a shallow and slow breathing state, the corresponding target supported flow value is: the upper limit value of a preset supported flow range, and the flow output value corresponding to the current breathing state is calculated by the target supported flow value, and the specific flow output value is composed of: the sum of the upper limit value of the preset supported flow range, the basic flow value, and the preset redundant flow value.

[0102] In an embodiment of the present invention, the preset support flow set by medical personnel is a range value, having an upper limit value and a lower limit value; for example, in a preferred implementation scheme, in the flow output value corresponding to a user in a shallow and slow breathing state, the upper limit value of the preset support flow value is set to 30L, and the lower limit value is set to 10L, then the final corresponding flow output value is specifically: respiratory flow rate peak value 20L + upper limit value of the preset support flow range 30L + preset redundant flow value 5L = 55L.

[0103] Step 404: Control the output valve of the ventilation therapy device to output a corresponding flow output value.

[0104] The specific implementation process of this step can refer to the above step 104, and will not be repeated here in this embodiment.

[0105] Step 405, obtaining the breathing parameters updated by the user.

[0106] The specific implementation process of this step can refer to the above step 105, and will not be repeated here in this embodiment.

[0107] Step 406: Adjust the flow value of the output valve according to the updated breathing parameters.

[0108] The specific implementation process of this step can refer to the above step 106, and will not be repeated here in this embodiment.

[0109] Step 407, if the user's breathing frequency increases, or the peak value of the flow rate of the user's breathing increases, the output flow value of the output valve is reduced at a second preset rate until the user's breathing frequency is within a normal frequency range, or the peak value of the flow rate of the user's breathing is within a normal flow rate range.

[0110] After determining the flow output value of the ventilation therapy device as described in step 403, the ventilation therapy device outputs airflow to the user at this value; within a certain period of time, if the user's breathing parameters change, the device will adjust the device output valve according to the changed breathing parameters to control the flow output value to change accordingly; if the user's breathing frequency increases compared to the previous moment, or the peak value of the user's breathing flow rate increases, the device's support flow will be reduced accordingly at a second preset rate; in a preferred implementation scheme of the embodiment of the present invention, the second preset rate is specifically set as: adjusting the preset support flow value at a frequency of once every 30 minutes, with a speed of 5 liters per minute (10L / min).

[0111] In summary, a method for regulating the flow of a ventilation therapy device provided in an embodiment of the present invention first detects the current breathing parameters of the user according to the ventilation therapy device, and the breathing parameters include: the peak value of the flow velocity wave peak of the user's breathing, and the time interval between two adjacent flow velocity wave peaks; the target breathing frequency is calculated according to the time interval between two adjacent flow velocity wave peaks, and the current breathing state of the user is determined jointly according to the breathing frequency and the peak value of the flow velocity wave peak, and then outputs the flow at a corresponding output value according to the current breathing state of the user; after controlling the output valve according to the flow output value, the breathing parameters of the user are obtained again, and the flow value of the output valve is adjusted according to the change of the breathing parameters; the output airflow flow value of the device is adjusted in real time by monitoring the breathing state of the user, and different ventilator output working schemes are specified for different users' breathing conditions, so as to solve the problem in the prior art that the result of the adjustment of the preset algorithm of the device is too uniform and the support for the different needs of different users is poor.

[0112] Figure 5 FIG. 1 is another complete flow chart of a method for regulating flow of a ventilation therapy device provided by an embodiment of the present invention. Figure 5 As shown, the method includes:

[0113] Step 501, detecting the current breathing parameters of the user, and obtaining the input supported flow range; the breathing parameters include: the peak value of the flow rate of the user's breathing, and the breathing frequency.

[0114] The specific implementation process of this step can refer to the above step 101, and will not be repeated here in this embodiment.

[0115] Step 502, determine the user's current breathing state based on the breathing frequency and the flow rate peak-to-peak value; if the target breathing frequency is greater than the first frequency threshold and the flow rate peak-to-peak value is greater than the second flow rate threshold, the breathing state is judged to be a deep rapid breathing state.

[0116] Deep rapid breathing is used to refer to: a breathing state in which the breathing rate is accelerated and the breathing amplitude is deepened; the corresponding breathing parameters are an increase in the peak value of the respiratory flow rate and a faster breathing rate; specifically, in an optional implementation scheme of an embodiment of the present invention, the breathing parameters corresponding to the deep rapid breathing state are set as follows: when the target breathing frequency is greater than the first frequency threshold, and the peak value of the flow rate is greater than the second flow rate threshold, that is, the breathing frequency is greater than 20Bpm and the peak value of the respiratory flow rate is greater than 35L / min, then the current user's breathing state is judged to be a deep rapid breathing state.

[0117] In practical applications, the judgment criteria for different respiratory states can be adaptively adjusted by medical staff according to actual conditions and work experience, and the embodiments of the present invention do not limit this.

[0118] Step 503: determine the flow output value corresponding to the user's current breathing state.

[0119] The specific implementation process of this step can refer to the above step 103, and will not be repeated here in this embodiment.

[0120] Optionally, step 503 may specifically include:

[0121] Sub-step 5031, based on the correspondence between the breathing state and the value of the supported flow range, determine the target supported flow value corresponding to the user's current breathing state from the supported flow range, and calculate the flow output value corresponding to the current breathing state through the target supported flow value.

[0122] Continuing from step 502, after determining that the current user's breathing state is a deep rapid breathing state, the flow output value corresponding to the deep rapid breathing state can be matched; in an embodiment of the present invention, for a user in a deep rapid breathing state, the corresponding target supported flow value is: the lower limit value of a preset supported flow range, and the flow output value corresponding to the current breathing state is calculated by the target supported flow value, and the specific flow output value is composed of: the sum of the lower limit value of the preset supported flow range, the basic flow value, and the preset redundant flow value.

[0123] In an embodiment of the present invention, the preset support flow set by medical personnel is a range value, having an upper limit value and a lower limit value; for example, in a preferred embodiment, in the flow output value corresponding to a user in a deep and rapid breathing state, the upper limit value of the preset support flow value is set to 30L, and the lower limit value is set to 10L. The final corresponding flow output value is specifically: respiratory flow rate peak value 20L + preset support flow range lower limit value 10L + preset redundant flow value 5L = 35L.

[0124] Step 504: Control the output valve of the ventilation therapy device to output a corresponding flow output value.

[0125] The specific implementation process of this step can refer to the above step 104, and will not be repeated here in this embodiment.

[0126] Step 505, obtaining the breathing parameters updated by the user.

[0127] The specific implementation process of this step can refer to the above step 105, and will not be repeated here in this embodiment.

[0128] Step 506: Adjust the flow value of the output valve according to the updated breathing parameter.

[0129] The specific implementation process of this step can refer to the above step 106, and will not be repeated here in this embodiment.

[0130] Step 507: If the user's breathing frequency increases or remains unchanged, or the peak value of the flow rate of the user's breathing increases, the output flow value of the output valve is increased at a first preset rate, and the updated breathing parameters of the user are re-acquired.

[0131] After determining the flow output value of the ventilation therapy device as described in step 503, the ventilation therapy device outputs airflow to the user at this value; within a certain period of time, if the user's breathing parameters change, the device will adjust the device output valve according to the changed breathing parameters to control the flow output value to change accordingly; if the user's breathing frequency is higher than or equal to the breathing frequency detected at the previous moment, that is, before determining the flow output value, the device's support flow is increased accordingly at a first preset rate; in an optional implementation scheme of an embodiment of the present invention, the first preset rate is specifically set as: adjusting the preset support flow value at a frequency of once every 5 minutes, with a speed of 10 liters per minute (10L / min).

[0132] Step 508: If the user's breathing frequency decreases, or the peak value of the flow rate of the user's breathing decreases, the output flow value of the output valve is reduced at a second preset rate until the user's breathing frequency is within a normal frequency range.

[0133] On the contrary, if the user's average breathing frequency is lower than the breathing frequency at the previous moment, it means that the flow output value previously set by the device has taken effect, and the support flow of the device is reduced by the output flow value of the output valve at a second preset rate. In an optional implementation scheme of an embodiment of the present invention, the second preset rate is set as follows: adjust the preset support flow value at a frequency of once every 30 minutes, at a speed of 5 liters per minute (5L / min), and then repeat the above steps until the detected breathing frequency returns to normal and the adjustment can be stopped.

[0134] In summary, a method for regulating the flow of a ventilation therapy device provided in an embodiment of the present invention first detects the current breathing parameters of the user according to the ventilation therapy device, and the breathing parameters include: the peak value of the flow velocity wave peak of the user's breathing, and the time interval between two adjacent flow velocity wave peaks; the target breathing frequency is calculated according to the time interval between two adjacent flow velocity wave peaks, and the current breathing state of the user is determined jointly according to the breathing frequency and the peak value of the flow velocity wave peak, and then outputs the flow at a corresponding output value according to the current breathing state of the user; after controlling the output valve according to the flow output value, the breathing parameters of the user are obtained again, and the flow value of the output valve is adjusted according to the change of the breathing parameters; the output airflow flow value of the device is adjusted in real time by monitoring the breathing state of the user, and different ventilator output working schemes are specified for different users' breathing conditions, so as to solve the problem in the prior art that the result of the adjustment of the preset algorithm of the device is too uniform and the support for the different needs of different users is poor.

[0135] Figure 6 FIG. 1 is another complete flow chart of a method for regulating flow of a ventilation therapy device provided by an embodiment of the present invention. Figure 6 As shown, the method includes:

[0136] Step 801, detecting the user's current breathing parameters, and obtaining an input supported flow range; the breathing parameters include: the peak value of the flow rate of the user's breathing, and the breathing frequency.

[0137] The specific implementation process of this step can refer to the above step 101, and will not be repeated here in this embodiment.

[0138] Step 802, determine the user's current breathing state based on the breathing frequency and the flow rate peak-to-peak value; if the target breathing frequency is less than the first frequency threshold and greater than the second frequency threshold, and the flow rate peak-to-peak value is greater than the second flow rate threshold, then the breathing state is judged to be a positive deep breathing state.

[0139] The positive deep breathing state is used to refer to: a breathing state with normal breathing rate and deepened breathing amplitude; the corresponding breathing flow rate peak value rises, and the breathing parameters are at a normal and uniform level; specifically, in an optional implementation scheme of an embodiment of the present invention, the breathing parameters corresponding to the positive deep breathing state are set as: when the target breathing frequency is less than the first frequency threshold and greater than the second frequency threshold, the flow rate peak value is greater than the second flow rate threshold, that is, the breathing frequency is between 12Bpm and 20Bpm, and the respiratory flow rate peak value is greater than 35L / min, then the current user's breathing state is judged to be the positive deep breathing state.

[0140] Step 803, determining the flow output value corresponding to the user's current breathing state.

[0141] The specific implementation process of this step can refer to the above step 103, and will not be repeated here in this embodiment.

[0142] Optionally, step 803 may specifically include:

[0143] Sub-step 8031, based on the correspondence between the breathing state and the values ​​of the supported flow range, determines the target supported flow value corresponding to the user's current breathing state from the supported flow range, and calculates the flow output value corresponding to the current breathing state through the target supported flow value.

[0144] Continuing from step 802, after determining that the current user's breathing state is a normal-speed deep breathing state, the flow output value corresponding to the normal-speed deep breathing state can be matched; in an embodiment of the present invention, for a user in a normal-speed deep breathing state, the corresponding target supported flow value is: the lower limit value of a preset supported flow range, and the flow output value corresponding to the current breathing state is calculated by the target supported flow value, and the specific flow output value is composed of: the sum of the lower limit value of the preset supported flow range, the basic flow value, and the preset redundant flow value.

[0145] In an embodiment of the present invention, the preset support flow set by medical personnel is a range value, having an upper limit value and a lower limit value of the range; for example, in an optional implementation scheme, in the flow output value corresponding to a user in a positive deep breathing state, the upper limit value of the preset support flow value is set to 30L, and the lower limit value is set to 10L, then the final corresponding flow output value is specifically: respiratory flow rate peak value 20L + preset support flow range lower limit value 10L + preset redundant flow value 5L = 35L.

[0146] Step 804, controlling the output valve of the ventilation therapy device to output a corresponding flow output value.

[0147] The specific implementation process of this step can refer to the above step 104, and will not be repeated here in this embodiment.

[0148] Step 805, obtaining the breathing parameters updated by the user.

[0149] The specific implementation process of this step can refer to the above step 105, and will not be repeated here in this embodiment.

[0150] Step 806: Adjust the flow value of the output valve according to the updated breathing parameters.

[0151] The specific implementation process of this step can refer to the above step 106, and will not be repeated here in this embodiment.

[0152] Step 807, if the user's breathing frequency is lower than the second frequency threshold, or the peak value of the flow rate of the user's breathing increases, the output flow value of the output valve is increased at a first preset rate until the peak value of the flow rate of the user's breathing is within the normal flow rate range.

[0153] After determining that the ventilation therapy device outputs the flow rate as described in step 803, the ventilation therapy device outputs airflow to the user at this value; within a certain period of time, if the user's breathing parameters change, the device will adjust the device output valve according to the changed breathing parameters to control the flow output value to change accordingly; if the user's breathing frequency rises and is higher than the first frequency threshold, the device's support flow rate is increased accordingly at a first preset rate; in a preferred implementation scheme of an embodiment of the present invention, the first preset rate is specifically set as: adjusting the preset support flow value at a frequency of once every 5 minutes, with a speed of 10 liters per minute (10L / min).

[0154] Step 808, if the peak value of the user's respiratory flow rate decreases, or the user's respiratory frequency is already in the normal frequency range, the output flow value of the output valve is reduced at a second preset rate until the peak value of the user's respiratory flow rate is in the normal flow rate range.

[0155] On the contrary, if the user's average breathing frequency is lower than the breathing frequency at the previous moment, it means that the flow output value previously set by the device has taken effect, and the support flow of the device is reduced by the output flow value of the output valve at a second preset rate. In an optional implementation scheme of an embodiment of the present invention, the second preset rate is set as follows: adjust the preset support flow value at a frequency of once every 30 minutes, at a speed of 5 liters per minute (5L / min), and then repeat the above steps until the detected breathing frequency returns to normal and the adjustment can be stopped.

[0156] In summary, a method for regulating the flow of a ventilation therapy device provided in an embodiment of the present invention first detects the current breathing parameters of the user according to the ventilation therapy device, and the breathing parameters include: the peak value of the flow velocity wave peak of the user's breathing, and the time interval between two adjacent flow velocity wave peaks; the target breathing frequency is calculated according to the time interval between two adjacent flow velocity wave peaks, and the current breathing state of the user is determined jointly according to the breathing frequency and the peak value of the flow velocity wave peak, and then outputs the flow at a corresponding output value according to the current breathing state of the user; after controlling the output valve according to the flow output value, the breathing parameters of the user are obtained again, and the flow value of the output valve is adjusted according to the change of the breathing parameters; the output airflow flow value of the device is adjusted in real time by monitoring the breathing state of the user, and different ventilator output working schemes are specified for the breathing states of different users, so as to solve the problem in the prior art that the result of the adjustment of the preset algorithm of the device is too uniform and the support for the different needs of different users is poor.

[0157] Figure 7 FIG. 1 is another complete flow chart of a method for regulating flow of a ventilation therapy device provided by an embodiment of the present invention. Figure 7 As shown, the method includes:

[0158] Step 901, detecting the user's current breathing parameters and obtaining an input supported flow range; the breathing parameters include: the peak value of the flow rate of the user's breathing and the breathing frequency.

[0159] The specific implementation process of this step can refer to the above step 101, and will not be repeated here in this embodiment.

[0160] Step 902, determine the user's current breathing state based on the breathing frequency and the flow rate peak value; if the target breathing frequency is greater than the second frequency threshold and less than the first frequency threshold, and the flow rate peak value is less than the first flow rate threshold, then the breathing state is judged to be a positive shallow breathing state.

[0161] The positive shallow breathing state is used to refer to: a breathing state with normal breathing rate and shallow breathing amplitude; a corresponding breathing parameter in which the peak value of the respiratory flow rate wave decreases and the breathing frequency is at a normal uniform level; specifically, in an optional implementation scheme of an embodiment of the present invention, the breathing parameters corresponding to the positive shallow breathing state are set as follows: when the target breathing frequency is greater than the second frequency threshold and less than the first frequency threshold, and the peak value of the flow rate wave is less than the first flow rate threshold, that is, the breathing frequency is between 10Bpm and 20Bpm, and the peak value of the respiratory flow rate wave is less than 20L / min, then the current user's breathing state is judged to be a positive shallow breathing state.

[0162] In practical applications, the judgment criteria for different respiratory states can be adaptively adjusted by medical staff according to actual conditions and work experience, and the embodiments of the present invention do not limit this.

[0163] Step 903, determining the flow output value corresponding to the user's current breathing state.

[0164] The specific implementation process of this step can refer to the above step 103, and will not be repeated here in this embodiment.

[0165] Continuing from step 902, after determining that the current user's breathing state is a normal shallow breathing state, the flow output value corresponding to the normal shallow breathing state can be matched; in an embodiment of the present invention, for a user in a normal shallow breathing state, the corresponding flow output value is composed of: the lower limit value of the preset supported flow range, the basic flow value, and the sum of the preset redundant flow values.

[0166] In an embodiment of the present invention, the preset support flow set by medical personnel is a range value, having an upper limit value and a lower limit value; for example, in an optional implementation scheme, in the flow output value corresponding to a user in a shallow and rapid breathing state, the upper limit value of the preset support flow value is set to 30L, and the lower limit value is set to 10L, then the final corresponding flow output value is specifically: respiratory flow rate peak value 20L + preset support flow range lower limit value 10L + preset redundant flow value 5L = 35L.

[0167] Step 904: Control the output valve of the ventilation therapy device to output a corresponding flow output value.

[0168] The specific implementation process of this step can refer to the above step 104, and will not be repeated here in this embodiment.

[0169] Step 905, obtaining the breathing parameters updated by the user.

[0170] After determining that the ventilation therapy device outputs the flow rate value described in step 903, the ventilation therapy device outputs airflow to the user at this value; within a certain period of time, if the user's breathing parameters change, the device will adjust the device output valve accordingly according to the changed breathing parameters to control the flow output value to change accordingly; if the user's breathing frequency is greater than the first frequency threshold or less than the second frequency threshold, the device's support flow rate is increased accordingly at a first preset rate; in an optional implementation scheme of an embodiment of the present invention, the first preset rate is specifically set as: adjusting the preset support flow value at a frequency of once every 5 minutes, with a speed of 10 liters per minute (10L / min).

[0171] Step 906: Adjust the flow value of the output valve according to the updated breathing parameters.

[0172] On the contrary, if the user's average breathing frequency is lower than the breathing frequency at the previous moment, it means that the flow output value previously set by the device has taken effect, and the support flow of the device is reduced by the output flow value of the output valve at a second preset rate. In an optional implementation scheme of an embodiment of the present invention, the second preset rate is set as follows: adjust the preset support flow value at a frequency of once every 30 minutes, at a speed of 5 liters per minute (5L / min), and then repeat the above steps until the detected breathing frequency returns to normal and the adjustment can be stopped.

[0173] Step 907, if the user's breathing frequency is less than the second frequency threshold, or the peak-to-peak value of the user's breathing flow rate rises, the output flow value of the output valve is increased at a first preset rate until the peak-to-peak value of the user's breathing flow rate is within a normal flow rate range.

[0174] After determining that the ventilation therapy device outputs the flow rate value described in step 903, the ventilation therapy device outputs airflow to the user at this value; within a certain period of time, if the user's breathing parameters change, the device will adjust the device output valve accordingly according to the changed breathing parameters to control the flow output value to change accordingly; if the user's breathing frequency is less than the second frequency threshold, or the peak value of the user's breathing flow rate rises, the device's support flow rate will be increased accordingly at a first preset rate until the peak value of the user's breathing flow rate is within the normal flow rate range; in an optional implementation scheme of an embodiment of the present invention, the first preset rate is specifically set as: adjusting the preset support flow value at a frequency of once every 5 minutes, with a speed of 10 liters per minute (10L / min).

[0175] Step 908, if the user's breathing frequency is already in the normal frequency range, or the peak-to-peak value of the user's breathing flow rate decreases, the output flow value of the output valve is reduced at a second preset rate until the peak-to-peak value of the user's breathing flow rate is in the normal flow rate range.

[0176] On the contrary, if the user's breathing frequency is already within the normal frequency range, or the peak-to-peak value of the user's breathing flow rate has decreased, it means that the flow output value previously set by the device has taken effect, and the output flow value of the output valve is reduced at a second preset rate until the peak-to-peak value of the user's breathing flow rate is within the normal flow rate range. In an optional implementation scheme of an embodiment of the present invention, the second preset rate is specifically set as follows: adjust the preset support flow value at a frequency of once every 30 minutes, at a speed of 5 liters per minute (5L / min), and then repeat the above steps until the detected breathing frequency tends to normal and the adjustment can be stopped.

[0177] In summary, a method for regulating the flow of a ventilation therapy device provided in an embodiment of the present invention first detects the current breathing parameters of the user according to the ventilation therapy device, and the breathing parameters include: the peak value of the flow velocity wave peak of the user's breathing, and the time interval between two adjacent flow velocity wave peaks; the target breathing frequency is calculated according to the time interval between two adjacent flow velocity wave peaks, and the current breathing state of the user is determined jointly according to the breathing frequency and the peak value of the flow velocity wave peak, and then outputs the flow at a corresponding output value according to the current breathing state of the user; after controlling the output valve according to the flow output value, the breathing parameters of the user are obtained again, and the flow value of the output valve is adjusted according to the change of the breathing parameters; the output airflow flow value of the device is adjusted in real time by monitoring the breathing state of the user, and different ventilator output working schemes are specified for the breathing states of different users, so as to solve the problem in the prior art that the result of the adjustment of the preset algorithm of the device is too uniform and the support for the different needs of different users is poor.

[0178] Figure 8FIG. 1 is another complete flow chart of a method for regulating flow of a ventilation therapy device provided by an embodiment of the present invention. Figure 8 As shown, the method includes:

[0179] Step 1101, detecting the user's current breathing parameters, and obtaining the input supported flow range; the breathing parameters include: the peak value of the flow rate of the user's breathing, and the breathing frequency.

[0180] The specific implementation process of this step can refer to the above step 101, and will not be repeated here in this embodiment.

[0181] Step 1102, determine the user's current breathing state based on the breathing frequency and the flow rate peak-to-peak value; if the target breathing frequency is less than the second frequency threshold, and the flow rate peak-to-peak value is less than the second flow rate threshold and greater than the first flow rate threshold, then the breathing state is judged to be a slow normal deep breathing state.

[0182] The slow normal deep breathing state is used to refer to: a breathing state with normal breathing depth but slow breathing frequency; the corresponding breathing parameters are that the peak value of the respiratory flow rate is at a normal uniform level and the breathing frequency is slow; specifically, in an optional implementation scheme of an embodiment of the present invention, the breathing parameters corresponding to the slow normal breathing state are set as follows: when the target breathing frequency is less than the second frequency threshold, the peak value of the flow rate is less than the second flow rate threshold and greater than the first flow rate threshold, that is, the breathing frequency is less than 10Bpm, and the peak value of the respiratory flow rate is between 20L / min and 35L / min, then the current user's breathing state is judged to be a slow normal breathing state.

[0183] In practical applications, the judgment criteria for different respiratory states can be adaptively adjusted by medical staff according to actual conditions and work experience, and the embodiments of the present invention do not limit this.

[0184] Step 1103, determining the flow output value corresponding to the user's current breathing state.

[0185] The specific implementation process of this step can refer to the above step 103, and will not be repeated here in this embodiment.

[0186] Optionally, step 1103 may specifically include:

[0187] Sub-step 11031, based on the correspondence between the breathing state and the value of the supported flow range, determine the target supported flow value corresponding to the user's current breathing state from the supported flow range, and calculate the flow output value corresponding to the current breathing state through the target supported flow value.

[0188] Continuing from step 1102, after determining that the current user's breathing state is a slow normal breathing state, the flow output value corresponding to the slow normal breathing state can be matched; in an embodiment of the present invention, for a user in a slow normal breathing state, the corresponding flow output value is composed of: the lower limit value of the preset supported flow range, the basic flow value, and the sum of the preset redundant flow value.

[0189] In an embodiment of the present invention, the preset support flow set by medical personnel is a range value, having an upper limit value and a lower limit value of the range; for example, in an optional implementation scheme, in the flow output value corresponding to a user in a slow normal breathing state, the upper limit value of the preset support flow value is set to 30L, and the lower limit value is set to 10L, then the final corresponding flow output value is specifically: respiratory flow rate peak value 20L + preset support flow range lower limit value 10L + preset redundant flow value 5L = 35L.

[0190] Step 1104, controlling the output valve of the ventilation therapy device to output a corresponding flow output value.

[0191] The specific implementation process of this step can refer to the above step 104, and will not be repeated here in this embodiment.

[0192] Step 1105, obtaining the breathing parameters updated by the user.

[0193] The specific implementation process of this step can refer to the above step 105, and will not be repeated here in this embodiment.

[0194] Step 1106: adjust the flow value of the output valve according to the updated breathing parameters.

[0195] The specific implementation process of this step can refer to the above step 106, and will not be repeated here in this embodiment.

[0196] Step 1107: if the user's breathing frequency decreases and the peak value of the flow rate of the user's breathing is less than the first flow rate threshold, the output flow value of the output valve is increased at a first preset rate, and the updated breathing parameters of the user are re-acquired.

[0197] After determining that the ventilation therapy device outputs the flow rate value described in step 1103, the ventilation therapy device outputs airflow to the user at this value; within a certain period of time, if the user's breathing parameters change, the device will adjust the device output valve according to the changed breathing parameters to control the flow output value to change accordingly; if the user's breathing frequency decreases and the peak-to-peak value of the user's breathing flow rate is less than the first flow rate threshold, the device's support flow rate is increased accordingly at a first preset rate, and the user's updated breathing parameters continue to be obtained; in an optional implementation scheme of an embodiment of the present invention, the first preset rate is specifically set as: adjusting the preset support flow value at a frequency of once every 5 minutes, with a speed of 10 liters per minute (10L / min).

[0198] Step 1108: If the user's breathing frequency increases, or the peak value of the flow rate wave of the user's breathing is greater than the second flow rate threshold, the output flow value of the output valve is reduced at a second preset rate until the user's breathing frequency is within a normal frequency range.

[0199] On the contrary, if the user's breathing rate rises, or the peak value of the flow rate wave of the user's breathing is greater than the second flow rate threshold, it means that the flow output value previously set by the device has taken effect, and the support flow of the device is reduced by the output flow value of the output valve at a second preset rate. In an optional implementation scheme of an embodiment of the present invention, the second preset rate is set as follows: adjust the preset support flow value at a frequency of once every 30 minutes, at a speed of 5 liters per minute (5L / min), and then repeat the above steps until the detected breathing frequency returns to normal and the adjustment can be stopped.

[0200] In summary, a method for regulating the flow of a ventilation therapy device provided in an embodiment of the present invention first detects the current breathing parameters of the user according to the ventilation therapy device, and the breathing parameters include: the peak value of the flow velocity wave peak of the user's breathing, and the time interval between two adjacent flow velocity wave peaks; the target breathing frequency is calculated according to the time interval between two adjacent flow velocity wave peaks, and the current breathing state of the user is determined jointly according to the breathing frequency and the peak value of the flow velocity wave peak, and then outputs the flow at a corresponding output value according to the current breathing state of the user; after controlling the output valve according to the flow output value, the breathing parameters of the user are obtained again, and the flow value of the output valve is adjusted according to the change of the breathing parameters; the output airflow flow value of the device is adjusted in real time by monitoring the breathing state of the user, and different ventilator output working schemes are specified for the breathing states of different users, so as to solve the problem in the prior art that the result of the adjustment of the preset algorithm of the device is too uniform and the support for the different needs of different users is poor.

[0201] Reference Fig. 9 , Fig. 9FIG. 1 is another complete flow chart of a method for regulating flow of a ventilation therapy device provided by an embodiment of the present invention. Fig. 9 As shown, the method includes:

[0202] Step 1201, detecting the user's current breathing parameters, and obtaining the input supported flow range; the breathing parameters include: the peak value of the flow rate of the user's breathing, and the breathing frequency.

[0203] The specific implementation process of this step can refer to the above step 101, and will not be repeated here in this embodiment.

[0204] Step 1202, calculate the respiratory frequency based on the time interval between two adjacent flow velocity peak values, compare the respiratory frequency with the first frequency threshold and the second frequency threshold, and compare the flow velocity peak value with the first flow velocity threshold and the second flow velocity threshold, to obtain a comparison result.

[0205] The specific implementation process of this step can refer to the above step 1021, and will not be repeated here in this embodiment.

[0206] Step 1203: If the target respiratory frequency is less than the first frequency threshold and greater than the second frequency threshold, and the flow rate peak value is greater than the first flow rate threshold and less than the second flow rate threshold, then the respiratory state is determined to be a normal respiratory state.

[0207] The normal breathing state is used to refer to: a breathing state with normal breathing depth and normal breathing frequency; the corresponding breathing flow rate peak-to-peak value is at a normal uniform level, and the breathing frequency is also at a normal uniform level breathing parameters; specifically, in an optional implementation scheme of an embodiment of the present invention, the breathing parameters corresponding to the normal breathing state are set as follows: when the target breathing frequency is less than the first frequency threshold and greater than the second frequency threshold, the flow rate peak-to-peak value is greater than the first flow rate threshold and less than the second flow rate threshold, that is, the breathing frequency is between 10Bpm and 20Bpm, and the breathing flow rate peak-to-peak value is between 20L / min and 35L / min, then the current user's breathing state is judged to be a slow breathing normal state.

[0208] In practical applications, the judgment criteria for different respiratory states can be adaptively adjusted by medical staff according to actual conditions and work experience, and the embodiments of the present invention do not limit this.

[0209] Step 1204: the output valve flow output value corresponding to the normal breathing state is: the sum of the basic flow value and the preset redundant flow value, and the output valve is controlled according to the output valve flow output value.

[0210] Continuing from step 1203, after determining that the current user's breathing state is a normal breathing state, the flow output value corresponding to the normal breathing state can be matched; in an embodiment of the present invention, for a user in a normal breathing state, the corresponding flow output value is composed of: the sum of the basic flow value and the preset redundant flow value.

[0211] In the embodiment of the present invention, the user in the normal breathing state no longer needs an additional preset support flow rate for auxiliary breathing supply. The device only needs to retain the user's minimum inhalation flow rate requirement. Figure 2 At the horizontal position of the standard output value mark line 203, the final corresponding flow output value is specifically: the peak value of the respiratory flow rate 5L+the preset redundant flow value 5L=10L.

[0212] At the same time, for users in a normal breathing state, the respiratory frequency and respiratory flow rate peak-to-peak values ​​in their respiratory parameters are already in a normal state, so there is no need to set the subsequent corresponding adjusted flow output value. In this state, the ventilation therapy equipment only needs to guarantee the basic breathing needs of the breathing user; it is worth noting that for some of the implementation steps of the other embodiments listed above, including: steps 305-306, steps 405-406, steps 505-506, steps 805-806, steps 905-906, steps 1105-1106, the detection of the user's changing respiratory parameters and the secondary adjustment of the flow output value of the ventilation therapy equipment all take the normal breathing state described in step 1203 as the ultimate adjustment purpose.

[0213] In summary, a method for regulating the flow of a ventilation therapy device provided in an embodiment of the present invention first detects the current breathing parameters of the user according to the ventilation therapy device, and the breathing parameters include: the peak value of the flow velocity wave peak of the user's breathing, and the time interval between two adjacent flow velocity wave peaks; the target breathing frequency is calculated according to the time interval between two adjacent flow velocity wave peaks, and the current breathing state of the user is determined jointly according to the breathing frequency and the peak value of the flow velocity wave peak, and then outputs the flow at a corresponding output value according to the current breathing state of the user; after controlling the output valve according to the flow output value, the breathing parameters of the user are obtained again, and the flow value of the output valve is adjusted according to the change of the breathing parameters; the output airflow flow value of the device is adjusted in real time by monitoring the breathing state of the user, and different ventilator output working schemes are specified for the breathing states of different users, so as to solve the problem in the prior art that the result of the adjustment of the preset algorithm of the device is too uniform and the support for the different needs of different users is poor.

[0214] Reference Fig.10 , Fig.10 FIG. 1 is a schematic diagram showing the relationship between the functional components of a ventilation therapy device provided by an embodiment of the present invention. Fig.10 As shown, the device comprises:

[0215] The device body 10, the breathing tube 21, the user interface 22, the output valve 12 and the control module 11; wherein the device body 10 is used to output gas of a preset pressure and a preset flow rate through the output end, the breathing tube 21 includes a first end and a second end that are connected to each other, and the first end of the breathing tube 21 is connected to the output end of the device body 10; the second end of the breathing tube 21 is connected to the user interface 22, and the user interface 22 is used to be worn in the user's nasal cavity. When the user interface 22 is worn in the user's nasal cavity, an air outlet gap is set between the user interface 22 and the user's nasal cavity;

[0216] The control module 11 is used to: detect the user's current breathing parameters, which include: the peak value of the flow rate wave of the user's breathing, and the time interval between two adjacent flow rate wave peaks; calculate the breathing frequency according to the time interval between two adjacent flow rate wave peaks, and determine the user's current breathing state according to the breathing frequency and the peak value of the flow rate wave peak; determine the flow output value corresponding to the user's current breathing state; after controlling the output valve 12 according to the flow output value, obtain the user's updated breathing parameters; and then adjust the flow value of the output valve according to the updated breathing parameters.

[0217] In actual application, the control module 11 detects the user's current breathing parameters through the breathing circuit 21 and the user interface 22, determines the user's current breathing state according to the breathing parameters, and then controls the output valve 12 according to the user's current breathing state to output with a corresponding flow output value; after controlling the output valve according to the flow output value, the user's breathing parameters are obtained again, and the flow value of the output 12 is adjusted according to the change of the breathing parameters. Specifically, Fig.10 The ventilation therapy device shown implements the ventilation therapy device flow regulation method as described in any step of steps 301 to 306 of the embodiment.

[0218] It is worth noting that the ventilation therapy device provided in the embodiment of the present invention does not limit the specific category of the device; in actual applications, the ventilation therapy device may specifically include: a ventilator, an oxygen therapy device, etc.

[0219] In summary, a ventilation therapy device provided by the present invention in real time first detects the current breathing parameters of the user according to the ventilation therapy device, and the breathing parameters include: the peak value of the flow velocity wave peak of the user's breathing, and the time interval between two adjacent flow velocity wave peaks; the target breathing frequency is calculated according to the time interval between two adjacent flow velocity wave peaks, and the current breathing state of the user is determined based on the breathing frequency and the peak value of the flow velocity wave peak, and then outputs with a corresponding flow output value according to the current breathing state of the user; after controlling the output valve according to the flow output value, the user's breathing parameters are obtained again, and the flow value of the output valve is adjusted according to the change of the breathing parameters; the output airflow flow value of the device is adjusted in real time by monitoring the breathing state of the user, and different ventilator output working schemes are specified for the breathing states of different users, so as to solve the problem that the result of the adjustment of the preset algorithm of the device in the prior art is too uniform and the support for the different needs of different users is poor.

[0220] Fig.11 is a block diagram of an electronic device 600 according to an exemplary embodiment. For example, the electronic device 600 may be a mobile phone, a computer, a digital broadcast terminal, a messaging device, a game console, a tablet device, a medical device, a fitness device, a personal digital assistant, etc.

[0221] Reference Fig.11 , the electronic device 600 may include one or more of the following components: a processing component 602 , a memory 604 , a power component 606 , a multimedia component 608 , an audio component 610 , an input / output (I / O) interface 612 , a sensor component 614 , and a communication component 616 .

[0222] The processing component 602 generally controls the overall operation of the electronic device 600, such as operations associated with display, phone calls, data communications, camera operations, and recording operations. The processing component 602 may include one or more processors 620 to execute instructions to complete all or part of the steps of the above-mentioned method. In addition, the processing component 602 may include one or more modules to facilitate the interaction between the processing component 602 and other components. For example, the processing component 602 may include a multimedia module to facilitate the interaction between the multimedia component 608 and the processing component 602.

[0223] The memory 604 is used to store various types of data to support the operation of the electronic device 600. Examples of such data include instructions for any application or method operating on the electronic device 600, contact data, phone book data, messages, pictures, multimedia, etc. The memory 604 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic disk or optical disk.

[0224] The power supply component 606 provides power to the various components of the electronic device 600. The power supply component 606 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power to the electronic device 600.

[0225] The multimedia component 608 includes a screen that provides an output interface between the electronic device 600 and the user. In some embodiments, the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive input signals from the user. The touch panel includes one or more touch sensors to sense touch, slide, and gestures on the touch panel. The touch sensor may not only sense the boundaries of the touch or slide action, but also detect the duration and pressure associated with the touch or slide operation. In some embodiments, the multimedia component 608 includes a front camera and / or a rear camera. When the electronic device 600 is in an operating mode, such as a shooting mode or a multimedia mode, the front camera and / or the rear camera may receive external multimedia data. Each front camera and the rear camera may be a fixed optical lens system or have a focal length and optical zoom capability.

[0226] The audio component 610 is used to output and / or input audio signals. For example, the audio component 610 includes a microphone (MIC), and when the electronic device 600 is in an operating mode, such as a call mode, a recording mode, and a voice recognition mode, the microphone is used to receive an external audio signal. The received audio signal can be further stored in the memory 604 or sent via the communication component 616. In some embodiments, the audio component 610 also includes a speaker for outputting audio signals.

[0227] I / O interface 612 provides an interface between processing component 602 and peripheral interface modules, such as keyboards, click wheels, buttons, etc. These buttons may include but are not limited to: a home button, a volume button, a start button, and a lock button.

[0228] The sensor assembly 614 includes one or more sensors for providing various aspects of status assessment for the electronic device 600. For example, the sensor assembly 614 can detect the open / closed state of the electronic device 600, the relative positioning of the components, such as the display and keypad of the electronic device 600, and the sensor assembly 614 can also detect the position change of the electronic device 600 or a component of the electronic device 600, the presence or absence of contact between the user and the electronic device 600, the orientation or acceleration / deceleration of the electronic device 600, and the temperature change of the electronic device 600. The sensor assembly 614 may include a proximity sensor configured to detect the presence of a nearby object without any physical contact. The sensor assembly 614 may also include an optical sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 614 may also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.

[0229] The communication component 616 is used to facilitate wired or wireless communication between the electronic device 600 and other devices. The electronic device 600 can access a wireless network based on a communication standard, such as WiFi, a carrier network (such as 2G, 3G, 4G or 5G), or a combination thereof. In an exemplary embodiment, the communication component 616 receives a broadcast signal or broadcast-related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 616 also includes a near field communication (NFC) module to facilitate short-range communication. For example, the NFC module can be implemented based on radio frequency identification (RFID) technology, infrared data association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology and other technologies.

[0230] In an exemplary embodiment, the electronic device 600 can be implemented by one or more application-specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays (FPGAs), controllers, microcontrollers, microprocessors or other electronic components to implement a flow regulation method for a ventilation therapy device provided in an embodiment of the present invention.

[0231] In an exemplary embodiment, a non-transitory computer-readable storage medium including instructions is also provided, such as a memory 604 including instructions, and the instructions can be executed by a processor 620 of an electronic device 600 to perform the above method. For example, the non-transitory storage medium can be a ROM, a random access memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, etc.

[0232] Fig.12is a block diagram of an electronic device 700 according to an exemplary embodiment. For example, the electronic device 700 may be provided as a server. Fig.12 The electronic device 700 includes a processing component 722, which further includes one or more processors, and a memory resource represented by a memory 732 for storing instructions executable by the processing component 722, such as an application. The application stored in the memory 732 may include one or more modules, each corresponding to a set of instructions. In addition, the processing component 722 is configured to execute instructions to perform a ventilation therapy device flow adjustment method provided in an embodiment of the present invention.

[0233] The electronic device 700 may also include a power supply component 726 configured to perform power management of the electronic device 700, a wired or wireless network interface 750 configured to connect the electronic device 700 to a network, and an input / output (I / O) interface 758. The electronic device 700 may operate based on an operating system stored in the memory 732, such as Windows Server™, Mac OS X™, Unix™, Linux™, FreeBSD™ or the like.

[0234] Those skilled in the art will readily appreciate other embodiments of the invention after considering the specification and practicing the invention disclosed herein. The present invention is intended to cover any variations, uses or adaptations of the present invention that follow the general principles of the present invention and include common knowledge or customary techniques in the art that are not disclosed in this disclosure. The description and examples are to be considered exemplary only, and the true scope and spirit of the present invention are indicated by the following claims.

[0235] It should be understood that the present invention is not limited to the exact construction that has been described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.

Claims

1. A ventilation therapy device, characterized in that: The ventilation therapy device comprises: a device body, a breathing circuit, a user interface, an output valve and a control module; The device body is used to output gas of preset pressure and preset flow rate through the output end, and the breathing tube includes a first end and a second end that are connected to each other, and the first end of the breathing tube is connected to the output end; The second end of the breathing circuit is connected to the user interface, and the user interface is used to be worn in the nasal cavity of the user. When the user interface is worn in the nasal cavity of the user, an air outlet gap is provided between the user interface and the nasal cavity of the user; The control module is used to implement a flow regulation method, the method comprising: Detect the user's current breathing parameters and obtain the input supported flow range; the breathing parameters include: the peak value of the flow rate of the user's breathing, and the breathing frequency; The user's current breathing state is determined according to the breathing frequency and the flow rate peak value; the supported flow range is a flow range determined according to the user's current breathing state and meeting the user's breathing needs; Determining a flow output value corresponding to the current breathing state of the user according to the supported flow range and the current breathing state of the user; comprising: According to the correspondence between the respiratory state and the value of the supported flow range, a target supported flow value corresponding to the user's current respiratory state is determined from the supported flow range, and a flow output value corresponding to the current respiratory state is calculated by the target supported flow value; Control the output valve of the ventilation therapy device to output a corresponding flow output value.

2. The device according to claim 1, characterized in that Determining the user's current breathing state according to the breathing frequency and the flow rate peak value includes: Respectively comparing the magnitude relationship between the target respiratory frequency and the first frequency threshold and the second frequency threshold, and the magnitude relationship between the flow velocity peak value and the first flow velocity threshold and the second flow velocity threshold, to obtain a comparison result; wherein the first frequency threshold is greater than the second frequency threshold, and the first flow velocity threshold is less than the second flow velocity threshold; The user's current breathing state is determined according to the comparison result.

3. The device according to claim 1, characterized in that After controlling the output valve of the ventilation therapy device to output a corresponding flow output value, the method further includes: Get the breathing parameters updated by the user; The flow value of the output valve is adjusted according to the updated breathing parameter.

4. The device according to claim 2, characterized in that Determining the user's current breathing state according to the comparison result includes: When the target respiratory frequency is greater than the first frequency threshold and the flow rate peak value is less than the first flow rate threshold, it is determined that the respiratory state is a shallow and rapid breathing state.

5. The device according to claim 1, characterized in that The method of determining a target supported flow value corresponding to the current breathing state of the user from the supported flow range according to the corresponding relationship between the breathing state and the value of the supported flow range, and calculating a flow output value corresponding to the current breathing state by using the target supported flow value comprises: In the case where the breathing state is a shallow and rapid breathing state, determining a first target supported flow value corresponding to the shallow and rapid breathing state according to a preset correspondence relationship between the breathing state and the supported flow value; The sum of the first target supported flow value, the basic flow value, and the preset redundant flow value is used as the flow output value corresponding to the shallow and rapid breathing state; the basic flow value is equal to the peak-to-peak value of the flow rate of the user's current breathing, and the first target supported flow value is the middle value of the supported flow range.

6. The device according to claim 3, characterized in that When the breathing state is a shallow and rapid breathing state, adjusting the flow value of the output valve according to the updated breathing parameter includes: If the user's breathing frequency increases or remains unchanged, or the peak value of the flow rate wave of the user's breathing decreases or remains unchanged, the output flow value of the output valve is increased at a first preset rate until the first target support flow value reaches the upper limit value of the support flow range, or the user's breathing frequency is within a normal frequency range; If the user's breathing frequency decreases, or the peak value of the user's breathing flow rate increases, the output flow value of the output valve is reduced at a second preset rate until the user's breathing frequency is within the normal frequency range, or the peak value of the user's breathing flow rate is within the normal flow rate range.

7. The device according to claim 2, characterized in that Determining the user's current breathing state according to the comparison result includes: When the target respiratory frequency is less than the second frequency threshold, and the flow rate peak value is less than the first flow rate threshold, it is determined that the respiratory state is a shallow and slow respiratory state.

8. The device according to claim 1, characterized in that The method of determining a target supported flow value corresponding to the current breathing state of the user from the supported flow range according to the corresponding relationship between the breathing state and the value of the supported flow range, and calculating a flow output value corresponding to the current breathing state by using the target supported flow value comprises: In the case where the breathing state is a shallow and slow breathing state, determining a second target supported flow value corresponding to the shallow and slow breathing state according to a preset correspondence relationship between the breathing state and the supported flow value; The sum of the second target supported flow value, the basic flow value, and the preset redundant flow value is used as the flow output value corresponding to the shallow and slow breathing state; the basic flow value is equal to the peak-to-peak value of the flow rate of the user's current breathing, and the second target supported flow value is the upper limit value of the supported flow range.

9. The device according to claim 3, characterized in that When the breathing state is a shallow and slow breathing state, adjusting the flow value of the output valve according to the updated breathing parameter includes: If the user's breathing frequency increases, or the peak value of the flow rate of the user's breathing increases, the output flow value of the output valve is reduced at a second preset rate until the user's breathing frequency is within the normal frequency range, or the peak value of the flow rate of the user's breathing is within the normal flow rate range.

10. The device according to claim 2, characterized in that Determining the user's current breathing state according to the comparison result includes: When the target respiratory frequency is greater than a first frequency threshold, and the flow rate peak value is greater than a second flow rate threshold, it is determined that the respiratory state is a deep rapid breathing state.

11. The device according to claim 2, characterized in that Determining the user's current breathing state according to the comparison result includes: When the target respiratory frequency is less than the first frequency threshold and greater than the second frequency threshold, and the flow rate peak value is greater than the second flow rate threshold, it is determined that the respiratory state is a positive deep breathing state.

12. The device according to claim 2, characterized in that Determining the user's current breathing state according to the comparison result includes: When the target respiratory frequency is greater than the second frequency threshold and less than the first frequency threshold, and the flow velocity peak value is less than the first flow velocity threshold, it is determined that the respiratory state is a positive shallow breathing state.

13. The device according to claim 2, characterized in that Determining the user's current breathing state according to the comparison result includes: When the target respiratory frequency is less than the second frequency threshold and the flow velocity peak value is greater than the first flow velocity threshold and less than the second flow velocity threshold, it is determined that the respiratory state is a slow normal deep respiratory state.

14. The device according to claim 1, characterized in that The method of determining a target supported flow value corresponding to the current breathing state of the user from the supported flow range according to the corresponding relationship between the breathing state and the value of the supported flow range, and calculating a flow output value corresponding to the current breathing state by using the target supported flow value comprises: In the case where the breathing state is any one of a deep rapid breathing state, a normal deep breathing state, a normal shallow breathing state, and a slow normal deep breathing state, determining a third target supported flow value corresponding to the breathing state according to a preset correspondence between the breathing state and the supported flow value; The sum of the third target supported flow value, the basic flow value, and the preset redundant flow value is used as the output valve flow output value in the target output scheme corresponding to any one of the deep rapid breathing state, the positive deep breathing state, and the positive shallow breathing state; the basic flow value is equal to the peak-to-peak value of the flow rate of the user's current breathing, and the third target supported flow value is the lower limit value of the supported flow range.

15. The device according to claim 3, characterized in that When the breathing state is a deep rapid breathing state, adjusting the flow value of the output valve according to the updated breathing parameter includes: If the user's breathing frequency increases or remains unchanged, or the peak value of the flow rate of the user's breathing increases, the output flow value of the output valve is increased at a first preset rate, and the updated breathing parameters of the user are re-acquired; If the user's breathing frequency decreases, or the peak value of the flow rate wave of the user's breathing decreases, the output flow value of the output valve is reduced at a second preset rate until the user's breathing frequency is within a normal frequency range.

16. The device according to claim 3, characterized in that When the breathing state is a positive speed deep breathing state, adjusting the flow value of the output valve according to the updated breathing parameter includes: If the user's breathing frequency is lower than the second frequency threshold, or the peak value of the flow rate of the user's breathing increases, the output flow value of the output valve is increased at a first preset rate until the peak value of the flow rate of the user's breathing is within the normal flow rate range; If the peak value of the user's respiratory flow rate decreases, or the user's respiratory frequency is already in the normal frequency range, the output flow value of the output valve is reduced at a second preset rate until the peak value of the user's respiratory flow rate is in the normal flow rate range.

17. The device according to claim 3, characterized in that When the breathing state is a positive shallow breathing state, adjusting the flow value of the output valve according to the updated breathing parameter includes: If the user's breathing frequency is less than the second frequency threshold, or the peak value of the flow rate of the user's breathing increases, the output flow value of the output valve is increased at a first preset rate until the peak value of the flow rate of the user's breathing is within the normal flow rate range; If the user's breathing frequency is already within the normal frequency range, or the peak value of the user's breathing flow rate decreases, the output flow value of the output valve is reduced at a second preset rate until the peak value of the user's breathing flow rate is within the normal flow rate range.

18. The device according to claim 3, characterized in that When the breathing state is a slow normal deep breathing state, adjusting the flow value of the output valve according to the updated breathing parameter includes: If the user's breathing frequency decreases and the peak value of the flow rate of the user's breathing is less than the first flow rate threshold, the output flow value of the output valve is increased at a first preset rate, and the updated breathing parameters of the user are re-acquired; If the user's breathing frequency increases, or the peak value of the flow rate wave of the user's breathing is greater than the second flow rate threshold, the output flow value of the output valve is reduced at a second preset rate until the user's breathing frequency is within a normal frequency range.

19. The device according to claim 2, characterized in that The method further comprises: Respectively comparing the magnitude relationship between the respiratory frequency and the first frequency threshold and the second frequency threshold, and the magnitude relationship between the flow velocity peak value and the first flow velocity threshold and the second flow velocity threshold, to obtain a comparison result; wherein the first frequency threshold is greater than the second frequency threshold, and the first flow velocity threshold is less than the second flow velocity threshold; If the target respiratory frequency is less than the first frequency threshold and greater than the second frequency threshold, and the flow rate peak value is greater than the first flow rate threshold and less than the second flow rate threshold, then the respiratory state is determined to be a normal respiratory state; The flow output value corresponding to the normal breathing state is determined to be: the sum of the basic flow value and the preset redundant flow value, and the output valve is controlled according to the flow output value.

20. An electronic device, characterized in that: include: processor; a memory for storing instructions executable by the processor; The processor is configured to execute the instructions to implement the device as claimed in any one of claims 1 to 19.

21. A readable storage medium, characterized in that: When the instructions in the readable storage medium are executed by a processor of an electronic device, the electronic device is enabled to execute the device as claimed in any one of claims 1 to 19.

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