Nasal respiration pressure measuring and detecting device

Abstract

The utility model discloses a nasal breathing pressure tapping detection device, which comprises a shell, a nasal tube adapter, a reminding module and a position detection module, an accommodating cavity is arranged in the shell, the nasal tube adapter is rotatably arranged at the end part of the shell, the reminding module and the position detection module are arranged in the accommodating cavity, a detection tube is arranged on one side wall of the nasal tube adapter, and the position detection module is arranged on the other side wall of the nasal tube adapter. The position detection module comprises a magnetic part fixed to the side wall of the nasal tube adapter and a Hall detection assembly used for detecting the position of the magnetic part configured to move between a first target point and a second target point, the magnetic part is located under the detection tube, and the Hall detection assembly is arranged in the containing cavity. The Hall detection assembly is located in the magnetic induction intensity range of the magnetic part, and the reminding module is connected with the Hall detection assembly and used for displaying monitoring results of the Hall detection assembly when the magnetic part is located at different positions between the first target point and the second target point. By arranging the position detection module, the steering position of the nasal tube adapter is visually displayed, and confusion of test data is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of nasal resistance detection devices, in particular to a nasal breathing pressure detection device. Background Art

[0002] The nasal respiratory pressure monitoring device is a medical device used to measure a patient's nasal respiratory resistance and respiratory flow. It is commonly used in otolaryngology clinics to help assess a patient's nasal health. By monitoring the pressure difference between the two ends of the nose, nasal resistance can be effectively calculated. The device works by measuring the pressure difference between the front of the nostril and the nasopharynx. The nasal tube adapter in the device rotates in different directions to measure the left and right nostrils.

[0003] When measuring the left nose, the nasal breathing pressure tester needs to rotate the nasal tube adapter to the right with one side of the test tube installed. The flow rate of the left nose is measured. The pressure difference between the back of the nose (nasopharynx) and the front of the nose (nostril) is measured through the right nose and the nasal tube adapter. Finally, the nasal resistance is calculated. When measuring the right nose, the nasal tube adapter needs to be rotated to the left with one side of the test tube installed. The flow rate of the right nose is measured. The pressure difference between the nasopharynx and the front of the nose (nostril) is measured through the left nose and the nasal tube adapter. Finally, the nasal resistance is calculated.

[0004] However, the nasal tube adapter of the nasal breathing pressure detection device needs to be manually rotated to a fixed angle to measure the respiratory resistance of the corresponding nose during measurement. If there are no other restrictions on this manual rotation operation, the following situation will occur when testing the nasal respiratory resistance: when testing the respiratory resistance of the left nose, because the side of the nasal tube adapter with the interface is forgotten to be rotated to the right, when the right nose test is performed after the left nose test is completed, the side of the nasal tube adapter with the interface will be rotated to the right to measure the respiratory resistance of the right nose. This measurement will cause the values ​​of the respiratory resistance of the left and right noses to be opposite, and the measured blockage result will be inconsistent with the actual situation. Summary of the Invention

[0005] The utility model provides a nasal breathing pressure detection device to solve the technical problem that the existing nasal breathing pressure detection device lacks a detection reminder mechanism, which leads to easy confusion of left and right nostril detection results.

[0006] In order to solve the above technical problems, the utility model provides a nasal breathing pressure detection device, comprising a housing, a nasal tube adapter, a reminder module and a position detection module, wherein a housing is provided with a receiving cavity, the nasal tube adapter is rotatably arranged at an end of the housing, and the reminder module and the position detection module are arranged in the receiving cavity;

[0007] The position detection module includes a magnetic part fixed on a side wall of the nasal tube adapter and a Hall detection component arranged within the magnetic induction intensity range of the magnetic part. The magnetic part can rotate between a first target point and a second target point relatively arranged on both sides of the nasal tube adapter. The Hall detection component is arranged in the accommodating cavity and is used to detect the rotation position of the magnetic part. The reminder module is connected to the Hall detection component and is used to display the detection results of the Hall detection component when the magnetic part is located at different positions between the first target point and the second target point.

[0008] Furthermore, the Hall detection component includes a Hall element, an analog-to-digital converter and a single-chip microcomputer integrated on a circuit board. The circuit board is installed in the accommodating cavity. The analog-to-digital converter is connected to the Hall element and the single-chip microcomputer respectively. The single-chip microcomputer is connected to the reminder module. The Hall element is arranged on the side of the circuit board close to the first target point, and the Hall element is located in the moving direction of the magnetic part. The analog-to-digital converter converts the analog signal output by the Hall element into a digital signal processed by the single-chip microcomputer to determine whether the magnetic part is at the first target point or the second target point.

[0009] Furthermore, the Hall detection component also includes an amplifying circuit, and the Hall element is connected to the analog-to-digital converter through the amplifying circuit.

[0010] Furthermore, when the current passing through the Hall element is I, the Hall voltage U output by the Hall element is H The functional relationship is:

[0011]

[0012] R H represents the Hall coefficient of the Hall element, d represents the thickness of the Hall element, x represents the horizontal distance between the magnetic part and the Hall element, x0 represents the horizontal distance offset between the magnetic part and the Hall element, n represents the attenuation index, and B represents the magnetic induction intensity of the magnetic part.

[0013] Furthermore, the magnetic component is a linear magnetic field source or a magnetic dipole magnetic field source. When the magnetic component is a linear magnetic field source, the attenuation index n=2; when the magnetic component is a magnetic dipole magnetic field source, the attenuation index n=3.

[0014] Furthermore, the reminder module includes one or more of an auditory reminder, a visual reminder or a tactile reminder.

[0015] Furthermore, the auditory reminder is a buzzer, and the visual reminder includes a display and a multi-color indicator light.

[0016] Further, the haptic reminding member is a vibrator, when the magnetic member moves between the first target point and the second target point, the vibrator vibrates, when the magnetic member is at the first target point or the second target point, the vibrator stops vibrating; or, when the magnetic member is at the first target point or the second target point, the vibrator vibrates, when the magnetic member moves between the first target point and the second target point, the vibrator stops vibrating.

[0017] Further, the nose tube adapter is provided with an annular protrusion along a circumferential outer wall, the housing end wall is provided with a mounting gap for the nose tube adapter to rotate, the mounting gap is provided with an open slot matched with the annular protrusion, and the annular protrusion is rotationally mounted in the open slot.

[0018] Further, the annular protrusion is provided with a limiting surface close to one side of the housing, and the open slot is provided with a limiting portion matched with the limiting surface at two ends respectively, so as to limit the rotation angle of the nose tube adapter between the first target point and the second target point.

[0019] Compared with the prior art, the nose breathing pressure taking detection device provided in the embodiment of the utility model has the beneficial effects that:

[0020] The position detection module is arranged on the nose breathing pressure taking detection device, the magnetic member and the Hall detection assembly for detecting the rotation position of the magnetic member are arranged on the nose tube adapter, when the left and right nose breathing pressures are tested by using the nose breathing pressure taking detection device, the magnetic member is rotated to the first target point or the second target point by rotating the nose tube adapter, the Hall detection assembly detects in real time, accurately identifies the relative position change of the magnetic member, and the detection result is intuitively displayed in the reminding module, so as to determine whether the position of one side of the magnetic member arranged on the nose tube adapter is rotated to the correct target point, help the operator to correct the position of the nose tube adapter in time, and the operator can accurately obtain the detection data of the left and right noses, the possibility of confusing the detection data of the left and right noses is avoided, the accuracy of the detection data of the left and right noses is ensured, the operation process is simplified, the accuracy and reliability of measurement are improved, and the possibility of misoperation is effectively avoided. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 is a structure schematic view of a perspective of the nose breathing pressure taking detection device provided in the embodiment of the utility model;

[0022] Figure 2 is a structure schematic view of another perspective of the nose breathing pressure taking detection device provided in the embodiment of the utility model;

[0023] Figure 3 This is a front cross-sectional view of a nasal breathing pressure detection device provided by an embodiment of the present utility model;

[0024] Figure 4 It is a top sectional view of the nasal breathing pressure detection device provided by an embodiment of the present utility model.

[0025] In the figure, 10, housing; 11, accommodating cavity; 12, mounting notch; 13, opening slot; 20, nasal tube adapter; 21, annular protrusion; 22, detection tube; 30, position detection module; 31, magnetic part; 32, Hall detection assembly; 321, Hall element; 322, analog-to-digital converter; 323, single-chip microcomputer; 40, reminder module; 41, auditory reminder; 42, visual reminder; 43, tactile reminder. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings and embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] In the description of the present invention, it should be noted that directional words, such as the terms "middle", "upper", "lower", "inside", "outside", etc., indicating directions and positional relationships are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and cannot be understood as limiting the specific protection scope of the present invention.

[0028] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features. Therefore, the terms "first" and "second" may explicitly or implicitly include one or more of these features. In the description of this utility model, "at least" means one or more, unless otherwise specifically defined.

[0029] In this utility model, unless otherwise specified or limited, the terms "assemble," "connect," and "connect" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integral connection; mechanical connection; direct connection, connection through an intermediate medium, or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0030] like Figures 1-4 As shown, an embodiment of the present invention provides a nasal breathing pressure detection device, comprising a housing 10, a nasal tube adapter 20, a reminder module 40, and a position detection module 30. The housing 10 defines a receiving cavity 11, the nasal tube adapter 20 is rotatably disposed at an end of the housing 10, and the reminder module 40 and the position detection module 30 are disposed within the receiving cavity 11.

[0031] The position detection module 30 includes a magnetic member 31 fixed on a side wall of the nasal tube adapter 20 and a Hall detection component 32 arranged within the magnetic induction intensity range of the magnetic member 31. The magnetic member 31 can rotate between a first target point and a second target point relatively arranged on both sides of the nasal tube adapter 20. The Hall detection component 32 is arranged in the accommodating cavity 11 and is used to detect the rotation position of the magnetic member 31. The reminder module 40 is connected to the Hall detection component 32 and is used to display the detection results of the Hall detection component 32 when the magnetic member 31 is located at different positions between the first target point and the second target point.

[0032] For the sake of convenience, it is explained here that when using the nasal breathing pressure detection device to perform pressure detection on the nose, the left and right noses need to be tested separately, wherein two nasal tubes inserted into the nose are arranged side by side on the end of the nasal tube adapter 20, and two detection tubes 22 connecting the two nasal tubes are also arranged side by side on one side wall of the nasal tube adapter 20. The detection tubes 22 are connected to the central control module of the peripheral device and are used to test the nasal breathing pressure and flow obtained by the nasal tube part. When testing the left nose, it is necessary to rotate one side of the nasal tube adapter 20 where the detection tube 22 is set to the first target point in advance, and when testing the right nose, it needs to be rotated to the second target point on the other side. In order to more accurately capture the position of the detection tube 22 in each test, the detection tube 22 and the magnetic part 31 are set on the same side, and the relative position change of the magnetic part 31 is monitored in real time by the Hall detection component 32.

[0033] The embodiment of the present invention sets a position detection module 30 on the nasal breathing pressure detection device, including a magnetic part 31 connectedly set on the nasal tube adapter 20 and a Hall detection component 32 for detecting the rotation position of the magnetic part 31. When the nasal breathing pressure detection device is used to test the left and right nasal breathing pressures, the magnetic part 31 is rotated to the first target point or the second target point by rotating the nasal tube adapter 20. The Hall detection component 32 detects in real time, accurately identifies the relative position change of the magnetic part 31, and intuitively displays the detection result in the reminder module 40 to determine whether the position of one side of the magnetic part 31 set on the nasal tube adapter 20 is rotated to the correct target point, helping the operator to correct the position of the nasal tube adapter 20 in time, so that the operator can accurately obtain the detection data of the left and right noses, avoid the possibility of confusion of the left and right nasal detection data, ensure the accuracy of the left and right nasal detection data, simplify the operation process, improve the accuracy and reliability of the measurement, and effectively avoid the possibility of misoperation.

[0034] It should be noted that the first and second target points are the two detection positions of the nasal breathing pressure detection device when performing nasal breathing pressure and flow testing. They correspond to the maximum rotation angle of the nasal cannula adapter 20 when testing the left and right nostrils, respectively, and are located on opposite sides of the nasal cannula adapter 20. When testing the resistance and flow of left nostril breathing, the detection tube 22 and magnetic member 31 on the nasal cannula adapter 20 need to be rotated to the first target point. At this point, the Hall effect detection assembly 32 detects that the magnetic member 31 is near or at the first target point, and the reminder module 40 prompts the operator, indicating that the adapter is correctly aligned for testing the left nostril. When testing right nostril breathing, the detection tube 22 and magnetic member 31 on the nasal cannula adapter 20 need to be rotated to the second target point on the other side. Similarly, the Hall effect detection assembly 32 detects the movement of the magnetic member 31 and determines whether it has reached the second target point. The reminder module 40 issues a prompt, indicating that the adapter is in the correct position for testing the right nostril. The purpose of setting these two target points is to ensure that the nasal tube adapter 20 can be accurately rotated to the correct position, thereby avoiding confusion when testing the left and right noses and improving the accuracy of the test.

[0035] like Figure 3 and Figure 4As shown, in an optional embodiment of the present utility model, the Hall detection component 32 includes a Hall element 321, an analog-to-digital converter 322 and a single-chip microcomputer 323 integrated on a circuit board. The circuit board is installed in the accommodating cavity 11. The analog-to-digital converter 322 is connected to the Hall element 321 and the single-chip microcomputer 323 respectively. The single-chip microcomputer 323 is connected to the reminder module 40. The Hall element 321 is arranged on the side of the circuit board close to the first target point, and the Hall element 321 is located in the moving direction of the magnetic part 31. The analog-to-digital converter 322 converts the analog signal output by the Hall element 321 into a digital signal processed by the single-chip microcomputer 323 to determine whether the magnetic part 31 is at the first target point or the second target point.

[0036] Specifically, by setting the Hall element 321, when the nasal tube adapter 20 rotates between the first target point and the second target point, the relative position of the magnetic part 31 and the Hall element 321 changes, causing the magnetic induction intensity generated by the magnetic part 31 and passing through the Hall element 321 to change. The relative position change between the Hall element 321 and the magnetic part 31 can be sensed in real time, ensuring that the operator can accurately determine whether the magnetic part 31 is at the first or second target point, and then determine whether the position of the detection tube 22 is correct. When the magnetic member 31 gradually moves away from the Hall element 321, that is, rotates from the first target point toward the second target point, the magnetic field strength passing through the Hall element 321 gradually decreases as the relative distance between the magnetic member 31 and the Hall element 321 increases, and the Hall voltage will decrease as the magnetic field strength decreases; similarly, when the magnetic member 31 gradually approaches the Hall element 321, the nasal tube adapter 20 reverses, that is, rotates from the second target point toward the first target point, and the magnetic field strength passing through the Hall element 321 gradually increases as the relative distance between the magnetic member 31 and the Hall element 321 decreases, and the Hall voltage will increase as the magnetic member 31 approaches.

[0037] During actual measurement, the Hall voltage can be detected in real time to compare the range of Hall voltage values ​​when the set magnetic member 31 is located at the first target point (left nose test) and the magnetic member 31 is located at the second target point (right nose test). For example, the Hall voltage set for the left nose measurement is 4-5V, and the Hall voltage set for the right nose measurement is 1-2V, but the Hall voltage detected in real time during the measurement is 1.5V, indicating that the nasal tube adapter 20 is not rotated to the corresponding position when the left nose is measured, but is in the correct position when the right nose is measured. The analog-to-digital converter 322 (ADC) is used to measure the Hall voltage range value output by the Hall element 321 when the nasal tube adapter 20 is rotated to the first target point or the second target point, and the analog signal is converted into a digital signal so that the microcontroller 323 can process it and output it to the reminder module 40. The test results can be displayed in real time, and the operator can quickly obtain feedback to ensure that the test data of the left and right noses are not confused, thereby improving ease of use and operational efficiency.

[0038] In an optional embodiment of the present invention, the Hall detection component 32 further includes an amplifier circuit, and the Hall element 321 is connected to the analog-to-digital converter 322 via the amplifier circuit.

[0039] Specifically, the signal output by Hall element 321 is typically weak, especially when the distance between magnetic element 31 and Hall element 321 is large or the magnetic field strength is weak. The amplifier circuit can amplify these tiny signals, increasing their strength so that the subsequent analog-to-digital converter 322 can read data more accurately, thereby improving overall detection accuracy. By amplifying the signal in the early signal acquisition stage, the workload of analog-to-digital converter 322 and microcontroller 323 can be reduced, simplifying the subsequent processing circuit design and improving the processing efficiency of the entire system.

[0040] In an optional embodiment of the present invention, when the current passing through the Hall element 321 is I, the Hall voltage UH output by the Hall element 321 is expressed as follows:

[0041]

[0042] R H represents the Hall coefficient of the Hall element 321, d represents the thickness of the Hall element 321, x represents the horizontal distance between the magnetic member 31 and the Hall element 321, x0 represents the horizontal distance offset between the magnetic member 31 and the Hall element 321, n represents the attenuation index, and B represents the magnetic induction intensity of the magnetic member 31.

[0043] Specifically, when the Hall element 321 is placed in a magnetic field with a magnetic induction intensity of B, when a current I flows through it, an induced voltage will be generated in the direction perpendicular to the current I and the magnetic field B, namely, the Hall voltage U H When the magnetic member 31 moves horizontally, assuming that the magnetic flux density B(x) is a function of the position x of the magnetic member 31 relative to the Hall element 321, and that the magnetic field strength passing through the Hall element 321 decreases as the distance between the magnetic member 31 and the Hall element 321 increases, the magnetic flux density B can be expressed as a function B(x) with respect to the position x:

[0044]

[0045] B0 represents the initial magnetic induction intensity, and x0 represents the horizontal distance offset between the magnetic member 31 and the Hall element 321. It should be noted that x0 represents a distance offset, which generally refers to the initial or reference position of the magnetic member 31 relative to the Hall element 321. Assuming that when the magnetic member 31 is in the initial position, the magnetic field intensity measured by the Hall element 321 is the largest, in this case, the magnetic member 31 may not initially be directly in contact with the Hall element 321, but rather maintain a certain distance, which can be defined as x0. Therefore, x0 represents the starting reference position between the magnetic member 31 and the Hall element 321, from which the magnet moves horizontally away from the Hall element 321. By introducing x0, the attenuation of the magnetic field generated during the movement of the magnetic member 31 can be more flexibly described. In other words, x0 can help define the initial value of the magnetic field when the distance x = 0, rather than directly assuming that the magnetic member 31 and the Hall element 321 coincide when x = 0. Specifically, it can be explained as follows: when x0=0, it means that the magnetic member 31 is very close to or overlaps with the Hall element 321 at the initial position, and the measured magnetic field is the strongest at this time; when x0>0, it means that the magnetic member 31 is already at a certain distance from the Hall element 321 at the initial position. Therefore, this value helps calibrate the actual measurement distance to ensure that the nasal tube adapter 20 can be rotated to the correct target point in each test.

[0046] Therefore, the Hall voltage UH as a function of x is expressed as

[0047]

[0048] Among them, R H represents the Hall coefficient of the Hall element 321, which is used to describe the characteristics of the material in the Hall effect and is related to the type of material and the nature of the carriers; d represents the thickness of the Hall element 321, that is, the material thickness perpendicular to the direction of the current and the magnetic field. The greater the thickness, the more affected the change in the Hall voltage will be. The magnitude of the Hall voltage is inversely proportional to the thickness, that is, when the thickness is small, the Hall voltage is easier to detect; n represents the attenuation exponent, which is usually 2 or 3, depending on the geometry of the magnetic field or the type of magnet.

[0049] In an optional embodiment of the present invention, the magnetic member 31 is a linear magnetic field source or a magnetic dipole magnetic field source. When the magnetic member 31 is a linear magnetic field source, the attenuation index n=2; when the magnetic member 31 is a magnetic dipole magnetic field source, the attenuation index n=3.

[0050] Specifically, n represents an attenuation exponent, the value of which depends on the geometry of the magnetic field or the type of magnet; a magnetic dipole field is a magnetic field generated by a magnetic dipole (similar to a very small circular current or a pair of magnets with opposite poles), which is characterized by rapid decay with distance, and a typical magnetic field distribution is similar to the Earth's magnetic field. The magnetic dipole field exhibits symmetrical characteristics far from the magnetic dipole, similar to the electric dipole field, bar magnet, etc. In order to ensure that the device has sufficient service life, the magnetic member 31 can be a permanent magnet or the like. The linear magnetic field source refers to a magnetic source with a linear variation of the magnetic field along a specific direction. Such a magnetic field is usually generated when a uniform direct current passes through an infinitely long straight wire or a finite length wire. The magnetic field distribution exhibits linear characteristics, and its direction and size depend on the size and direction of the current. If the current passes through a finite length straight wire, the boundary effect needs to be considered, and the distribution of the magnetic field will be more complex. However, at a far distance, the magnetic field still exhibits an approximately linear decay rule.

[0051] As shown in Figure 2 and Figure 3 In an optional embodiment of the present application, the prompting module 40 includes one or more of an audible prompting member 41, a visual prompting member 42, or a tactile prompting member 43.

[0052] Specifically, by setting the prompting module 40, it can be ensured that the operator can accurately adjust the nasal tube adapter 20 to the correct target point position during left and right nose detection, avoiding operation errors. The audible prompting member 41, the visual prompting member 42, or the tactile prompting member 43 provides multiple feedback channels, and the operator can clearly know whether the adapter is rotated to the first target point or the second target point through the prompts of different senses. This design not only enhances the operation convenience of the device, but also effectively reduces the possibility of confusion of left and right nose detection data, improves the accuracy and efficiency of detection, and thus more reliably assesses the patient's nasal health condition in clinical practice.

[0053] In an optional embodiment of the present application, the audible prompting member 41 is a buzzer, and the visual prompting member 42 includes a display and a multi-color indicator light.

[0054] Specifically, the buzzer as the audible prompting member 41 can issue a sound prompt when the nasal tube adapter 20 is rotated to the correct target point, ensuring that the operator can know in real time whether the rotation is completed, greatly improving the convenience and reliability of the operation. The multi-color indicator light provides more intuitive visual feedback, and different colored indicator lights can clearly indicate whether the nasal tube adapter 20 has reached the first target point or the second target point, thereby avoiding confusion of left and right nose detection data. The display further enhances the visual feedback, and the operator can view the detection status and related data in real time on the display, ensuring accurate and error-free testing each time.

[0055] In an optional embodiment of the present invention, the tactile reminder 43 is a vibrator. When the magnetic member 31 moves between the first target point and the second target point, the vibrator vibrates, and when the magnetic member 31 is at the first target point or the second target point, the vibrator stops vibrating; or, when the magnetic member 31 is at the first target point or the second target point, the vibrator vibrates, and when the magnetic member 31 moves between the first target point and the second target point, the vibrator stops vibrating.

[0056] Specifically, when the magnetic member 31 reaches the first target point or the second target point, the vibrator stops vibrating (the first method), and the operator can confirm that the nasal tube adapter 20 has reached the correct position to ensure the accuracy of the test. Or conversely, when the magnetic member 31 reaches the target point, the vibrator starts vibrating (the second method), prompting the operator that the detection position is correct. By setting the vibrator as a tactile reminder 43, the feedback effect during the detection process can be effectively improved, ensuring that the operator receives accurate tactile prompts under different detection states, effectively avoiding incorrect operations, and the continuous vibration of the vibrator provides dynamic feedback to the operator.

[0057] like Figure 2 and Figure 3 As shown, in an optional embodiment of the present invention, the nasal tube adapter 20 is provided with an annular protrusion 21 along the circumferential outer wall, and a mounting notch 12 for the nasal tube adapter 20 to rotate is provided on the end wall of the shell 10. An open groove 13 adapted to the annular protrusion 21 is provided in the mounting notch 12, and the annular protrusion 21 is rotatably installed in the open groove 13.

[0058] Specifically, by providing an annular protrusion 21 along the circumferential outer wall of the nasal tube adapter 20 and opening a mounting notch 12 on the end wall of the housing 10, the design of the annular protrusion 21 and the opening groove 13 being adapted to each other enables the nasal tube adapter 20 to be stably maintained in the correct position during installation and rotation, avoiding unnecessary shaking and displacement. During operation, the nasal tube adapter 20 always rotates along a predetermined trajectory to ensure that the detection tube 22 is always correctly aligned with the target point. This design makes the installation process more intuitive and convenient. The operator can accurately install the nasal tube adapter 20 in place through a simple rotation action and quickly switch the detection position, reducing unnecessary complex steps.

[0059] like Figure 2 and Figure 3 As shown, in an optional embodiment of the present invention, a limiting surface is provided on one side of the annular protrusion 21 close to the shell 10, and limiting portions that cooperate with the limiting surface are provided at both ends of the opening groove 13, respectively, for limiting the rotation angle of the nasal tube adapter 20 between the first target point and the second target point.

[0060] Specifically, by providing a limiting surface on one side of the annular protrusion 21 close to the housing 10, and providing limiting portions that cooperate with the limiting surface at both ends of the opening groove 13, the cooperation between the limiting surface and the limiting portion effectively limits the rotation angle of the nasal tube adapter 20, ensuring that it can only rotate between the first target point and the second target point. This avoids misoperation caused by excessive rotation and makes the detection process more accurate. At the same time, by setting a specific rotation range, the operator can more easily position the nasal tube adapter 20 without having to worry about rotating beyond the detection position. The limiting design ensures that the nasal tube adapter 20 will not rotate to the wrong position, avoiding the problem of confusion in detection data caused by excessive or insufficient rotation, thereby simplifying the operation steps and improving operational efficiency.

[0061] The nasal breathing pressure detection device provided by the embodiment of the present invention can be used to measure the patient's nasal breathing resistance and respiratory flow. The measured values ​​can be used in the clinic of otolaryngology to evaluate the health of the patient's nose, providing users with a detection device that is easy to operate. When using the nasal breathing pressure detection device, the position detection module 30 can detect the rotation angle of the nasal tube adapter 20 in real time to effectively realize the operator's use of the nasal breathing pressure detection device to perform separate tests on the left and right noses. The actual operation process is as follows: when the nasal breathing pressure detection device is used to test the left nasal breathing resistance and flow, the Hall element 321 is energized and one side of the detection tube 22 and the magnetic part 31 on the nasal tube adapter 20 is turned to the first target point. The magnetic part 31 is close to or in the reference position of the Hall element 321. The magnetic part 31 generates a magnetic field that acts on the Hall element 321 to generate a Hall voltage. The magnetic field strength of the Hall element 321 gradually increases as the relative distance between the magnetic part 31 and the Hall element 321 decreases. The Hall voltage will increase as the magnetic part 31 approaches. By comparing the Hall voltage detected in the Hall element 321 with the preset voltage of the first target point in real time, it can be determined whether the nasal tube adapter 20 has been rotated to the first target point; and when using the nasal breathing pressure detection device to test the right nasal breathing resistance and flow, it is necessary to turn the detection tube 22 and one side of the magnetic part 31 on the nasal tube adapter 20 toward the second target point, and the magnetic part 31 is away from the Hall element 321, that is, rotated from the first target point to the second target point. The magnetic field strength through the Hall element 321 gradually decreases as the relative distance between the magnetic part 31 and the Hall element 321 increases, and the Hall voltage will decrease as the magnetic field strength decreases. By comparing the Hall voltage detected in the Hall element 321 with the preset voltage of the second target point in real time, it can be determined whether the magnetic part 31 is at the second target point. The analog-to-digital converter 322 then converts the analog signal output by the Hall element 321 into a digital signal processed by the single-chip microcomputer 323, and outputs it in real time to the reminder module 40 disposed in the accommodating cavity 11 for feedback. Multiple feedback pathways are provided through the auditory reminder 41, visual reminder 42, or tactile reminder 43. The operator can clearly know whether the adapter has been rotated to the first target point or the second target point through different sensory prompts. This design not only enhances the device's operational convenience, but also effectively reduces the possibility of confusion between left and right nasal detection data, improving the accuracy and efficiency of detection, thereby more reliably assessing the patient's nasal health in clinical practice.

[0062] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and replacements can be made without departing from the technical principles of the present invention. These improvements and replacements should also be regarded as the scope of protection of the present invention.

Claims

1. A nasal breathing pressure detection device, characterized in that: The device comprises a housing, a nasal tube adapter, a reminder module, and a position detection module. The housing has a receiving cavity, the nasal tube adapter is rotatably disposed at an end of the housing, and the reminder module and the position detection module are disposed in the receiving cavity. The position detection module includes a magnetic part fixed on a side wall of the nasal tube adapter and a Hall detection component arranged within the magnetic induction intensity range of the magnetic part. The magnetic part can rotate between a first target point and a second target point relatively arranged on both sides of the nasal tube adapter. The Hall detection component is arranged in the accommodating cavity and is used to detect the rotation position of the magnetic part. The reminder module is connected to the Hall detection component and is used to display the detection results of the Hall detection component when the magnetic part is located at different positions between the first target point and the second target point.

2. The nasal breathing pressure detection device according to claim 1, characterized in that: The Hall detection component includes a Hall element, an analog-to-digital converter and a single-chip microcomputer integrated on a circuit board. The circuit board is installed in the accommodating cavity. The analog-to-digital converter is connected to the Hall element and the single-chip microcomputer respectively. The single-chip microcomputer is connected to the reminder module. The Hall element is arranged on the side of the circuit board close to the first target point, and the Hall element is located in the moving direction of the magnetic part. The analog-to-digital converter converts the analog signal output by the Hall element into a digital signal processed by the single-chip microcomputer to determine whether the magnetic part is at the first target point or the second target point.

3. The nasal breathing pressure detection device according to claim 2, characterized in that: The Hall detection component further includes an amplifier circuit, and the Hall element is connected to the analog-to-digital converter via the amplifier circuit.

4. The nasal breathing pressure detection device according to claim 2, characterized in that: When the current passing through the Hall element is I, the Hall voltage U output by the Hall element is H The functional relationship is: n = 2 or 3 R H represents the Hall coefficient of the Hall element, d represents the thickness of the Hall element, x represents the horizontal distance between the magnetic part and the Hall element, x0 represents the horizontal distance offset between the magnetic part and the Hall element, n represents the attenuation index, and B represents the magnetic induction intensity of the magnetic part.

5. The nasal breathing pressure detection device according to claim 4, characterized in that: The magnetic component is a linear magnetic field source or a magnetic dipole magnetic field source. When the magnetic component is a linear magnetic field source, the attenuation index n=2; when the magnetic component is a magnetic dipole magnetic field source, the attenuation index n=3.

6. The nasal breathing pressure detection device according to claim 1, characterized in that: The reminder module includes one or more of an auditory reminder, a visual reminder or a tactile reminder.

7. The nasal breathing pressure detection device according to claim 6, characterized in that: The auditory reminder is a buzzer, and the visual reminder includes a display and a multi-color indicator light.

8. The nasal breathing pressure detection device according to claim 6, characterized in that: The tactile reminder is a vibrator. When the magnetic member moves between the first target point and the second target point, the vibrator vibrates, and when the magnetic member is at the first target point or the second target point, the vibrator stops vibrating; or, when the magnetic member is at the first target point or the second target point, the vibrator vibrates, and when the magnetic member moves between the first target point and the second target point, the vibrator stops vibrating.

9. The nasal breathing pressure detection device according to claim 1, characterized in that: The nasal tube adapter is provided with an annular protrusion along the circumferential outer wall, and the end wall of the shell is provided with a mounting notch for the nasal tube adapter to rotate. An open groove adapted to the annular protrusion is provided in the mounting notch, and the annular protrusion is rotatably installed in the open groove.

10. The nasal breathing pressure detection device according to claim 9, characterized in that: A limiting surface is provided on one side of the annular protrusion close to the shell, and limiting parts cooperating with the limiting surface are provided at both ends of the opening groove, so as to limit the rotation angle of the nasal tube adapter to between the first target point and the second target point.

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