Vital capacity detector

Abstract

The utility model discloses a vital capacity detector, and belongs to the technical field of medical instruments. Comprising a detection instrument provided with a breather pipe; the ventilation pipe is inserted into the outer shell, and a mounting groove is formed in the outer shell; the connecting assembly is arranged in the mounting groove, and the end, away from the outer shell, of the connecting assembly is used for mounting the blowing nozzle; the pressure sensors are distributed on the base surface of the bottom of the mounting groove; the response plate is connected with the connecting assembly, and contacts in one-to-one correspondence with the pressure sensors are arranged on the response plate; when the blowing nozzle is pressed, the connecting assembly drives the response plate to press downwards, the contact of the response plate makes contact with the pressure sensors, the detection instrument judges whether the face of a user is aligned or not according to the reading difference of the pressure sensors, and a red light is correspondingly triggered for warning or a green light is correspondingly triggered for allowing testing. By arranging the pressure sensors and the responding contacts, pressure distribution of different areas of the face of the user can be accurately detected, whether the face is aligned or not is judged, and the measurement accuracy is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of medical instruments, and particularly relates to a vital capacity detector. BACKGROUND

[0002] Existing vital capacity testing equipment mostly relies on airflow sensors or volume meters for measurement, but the following problems exist in actual application:

[0003] 1. The test results are greatly affected by individual patients (such as blowing strength, angle, coordination, etc.), resulting in large measurement data errors;

[0004] 2. The testing equipment lacks real-time monitoring of key parameters such as user testing posture and mouth sealing, further reducing the accuracy of the test;

[0005] 3. The existing equipment has low intelligence and cannot provide guidance for user operation behavior. INVENTION CONTENTS

[0006] The utility model is directed to the above problems existing in the prior art and provides a vital capacity detector that can improve the accuracy of the testing process and user experience.

[0007] The utility model can be implemented through the following technical solutions:

[0008] A vital capacity detector includes:

[0009] A detection instrument having an airway extending outward;

[0010] An outer shell having a through hole opened along an axial direction, the airway being inserted into the through hole, and the outer shell having a mounting groove opened at one end of the through hole;

[0011] A connecting assembly arranged in the mounting groove, one end of the connecting assembly away from the outer shell being used for mounting a mouthpiece;

[0012] A plurality of pressure sensors arranged and distributed on a base surface at the bottom of the mounting groove;

[0013] A response plate connected with the connecting assembly, the response plate being provided with contacts corresponding to the pressure sensors one by one;

[0014] When the mouthpiece is pressed, the connecting assembly drives the response plate to be pressed down and makes the contacts of the response plate contact the pressure sensors, and the detection instrument determines whether the user's face is aligned according to the reading differences of the pressure sensors and correspondingly triggers a red light warning or a green light to allow testing.

[0015] As a further improvement of the utility model, the connecting assembly comprises a rubber sleeve which is inserted into the mounting groove, and the rubber sleeve is communicated with the air pipe through the through hole.

[0016] As a further improvement of the utility model, the connecting assembly further comprises a connecting piece which is inserted into the rubber sleeve, and one end of the connecting piece away from the rubber sleeve is used for inserting the nozzle.

[0017] As a further improvement of the utility model, the connecting piece is provided in a funnel structure, one end of the connecting piece is inserted into the rubber sleeve, and the other end is gradually expanded from inside to outside to match the shape of the nozzle.

[0018] As a further improvement of the utility model, the pressure sensor is provided with four and is distributed on the front, rear, left and right four points of the mounting groove base surface.

[0019] As a further improvement of the utility model, the two pressure sensors at the front and rear positions of the mounting groove base surface are configured as a first group, and the two pressure sensors at the left and right positions of the mounting groove base surface are configured as a second group.

[0020] The first group of pressure sensors is used for monitoring the pressure generated by the philtrum position and the chin position of the face;

[0021] The second group of pressure sensors is used for monitoring the pressure generated by the left and right cheek positions.

[0022] As a further improvement of the utility model, when the reading difference of the pressure sensors in the same group exceeds the threshold value, it is determined that the face is not aligned, and the detection instrument triggers a red light warning.

[0023] As a further improvement of the utility model, when the reading difference of the pressure sensors in the two groups exceeds the threshold value, it is determined that the face is not aligned, and the detection instrument triggers a red light warning.

[0024] As a further improvement of the utility model, the outer peripheral wall of the rubber sleeve is provided with an annular protruding part.

[0025] As a further improvement of the utility model, the surface of the shell body is provided with an arc-shaped groove for hand holding.

[0026] Compared with the prior art, the utility model has the following beneficial effects:

[0027] 1. Improve the measurement accuracy: by arranging a plurality of pressure sensors and corresponding contacts, the pressure distribution of different regions of the user's face can be accurately detected, so as to determine whether the face is aligned, and the measurement accuracy is effectively improved.

[0028] 2. Provides instant feedback: the device can immediately issue a red light warning when the user is not properly aligned, and display a green light when properly aligned, providing intuitive and timely feedback to the user, helping the user quickly adjust to the optimal test position;

[0029] 3. Reduce the risk of misjudgment: the design takes into account the contact state between the response plate and the pressure sensor in the initial state, and only when the pressure value exceeds the threshold value does the determination process start, avoiding misjudgment due to not applying appropriate pressure;

[0030] 4. Accurate detection: considering the different nerve innervation characteristics of the philtrum, chin and cheek, two groups of pressure sensors are set up to more accurately capture the actual compression situation of each part of the user's face. This multi-point accurate pressure detection method can improve the accuracy of facial alignment judgment, avoid misjudgment due to a single sensor being unable to distinguish the pressure of different parts, reduce measurement errors caused by facial misalignment or uneven compression, and enhance the data reliability and accuracy of the spirometer. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 is a structural schematic view of the spirometer of the present application;

[0032] Figure 2 is a cross-sectional view of the connection of the air tube, the outer shell, and the connecting assembly of the present application;

[0033] Figure 3 is a partial enlarged view of A in the Figure 2

[0034] In the figure, 100, detection instrument; 110, air tube; 120, outer shell; 121, annular groove; 122, arc-shaped groove; 130, connecting assembly; 131, rubber sleeve; 1311, annular protrusion; 132, connecting piece; 140, pressure sensor; 150, response plate; 151, contact. DETAILED DESCRIPTION

[0035] The following is a specific embodiment of the present application combined with the drawings, which further describes the technical method of the present application, but the present application is not limited to these embodiments.

[0036] As shown in Figures 1-3 , the present application provides a spirometer, comprising:

[0037] The detection instrument 100 has an air tube 110 extending outward;

[0038] ​An outer shell 120 is provided with a through hole along the axial direction, the air pipe 110 is inserted into the through hole, and the outer shell 120 is provided with a mounting groove 121 at one end of the through hole;

[0039] A connecting assembly 130 is arranged in the mounting groove 121, and the connecting assembly is used for mounting a blowing nozzle (not shown in the figure) away from one end of the outer shell 120;

[0040] A plurality of pressure sensors 140 are arranged and distributed on the base surface of the bottom of the mounting groove 121;

[0041] A response plate 150 is connected with the connecting assembly 130, and the response plate 150 is provided with a contact 151 corresponding to each pressure sensor 140;

[0042] In actual use, the user aligns the face to the blowing nozzle and presses tightly, the pressure received by the blowing nozzle is transmitted to the connecting assembly 130, the connecting assembly drives the response plate 150 to press down and make the contact 151 of the response plate 150 contact the pressure sensor 140, at this time, the detection instrument 100 can automatically determine whether the face of the user is aligned according to the reading difference of each pressure sensor 140, when it is determined that the face is aligned, the detection instrument 100 triggers a green light and allows the test, when it is determined that the face is not aligned, the detection instrument 100 triggers a red light warning, and the user needs to adjust the face again.

[0043] The lung capacity detection instrument provided by the embodiment has at least the following advantages:

[0044] 1. Improve the measurement accuracy: by arranging a plurality of pressure sensors 140 and corresponding contacts 151, the pressure distribution of different regions of the face of the user can be accurately detected, so that whether the face is aligned can be determined, and the measurement accuracy is effectively improved;

[0045] 2. Provide instant feedback: the device can immediately issue a red light warning when the user is not correctly aligned, and display a green light when the user is correctly aligned, so as to provide intuitive and timely feedback for the user and help the user quickly adjust to the best test position.

[0046] Preferably, the connecting assembly 130 includes a rubber sleeve 131 and a connecting piece 132, the rubber sleeve 131 is inserted into the mounting groove 121, the rubber sleeve 131 is connected with the air pipe 110 through the through hole of the outer shell 120, the connecting piece 132 is inserted into the rubber sleeve 131, and the connecting piece 132 is used for inserting and mounting the blowing nozzle away from one end of the rubber sleeve;

[0047] The connecting piece 132 is provided in a funnel-shaped structure, one end of the connecting piece 132 is designed as an elongated part and is inserted into the rubber sleeve, the other end is gradually expanded from inside to outside to adapt to the shape of the blowing nozzle, and a wide opening is formed, the shape of the opening is specially designed to adapt to the shape of the disposable blowing nozzle;

[0048] The structure not only facilitates the quick installation and disassembly of the disposable nozzle, but also effectively enhances the comfort and sealing performance during use, ensures good sealing between the nozzle, reduces the infiltration of external air, and improves the accuracy of measurement data, solving the measurement error problem of the traditional detection instrument 100 due to the improper installation of the nozzle.

[0049] In addition, the rubber sleeve 131 itself is a flexible material with a certain deformation capacity. In the initial state, the user does not align the face to the nozzle and press tightly, and the rubber sleeve 131 is not deformed under force. At this time, the contact 151 on the response plate 150 is not in contact or only slightly touches the pressure sensor 140. Only when the pressure value detected by the pressure sensor 140 exceeds the threshold value, the detection instrument 100 starts to determine the difference between the readings of each pressure sensor 140, ensuring the contact state between the response plate 150 and the pressure sensor 140 in the initial state. Only when the pressure value exceeds the threshold value, the determination process is started, avoiding false judgments caused by not applying appropriate pressure.

[0050] In addition, it needs to be explained that the human face has a rich nerve distribution, and the nerves in the chin and cheek have different sensory levels. The chin (mandibular region) is mainly dominated by the mandibular nerve (lingual nerve and mandibular nerve branch), which is responsible for the sensation of the chin area and the movement of certain muscles; the cheek (facial part) is mainly dominated by the facial nerve and the maxillary nerve branch; the facial nerve is responsible for the movement of facial expression muscles, while the maxillary nerve branch is responsible for the sensation of the cheek. Therefore, when the subject is required to press tightly, the sensation and tightness of the cheek and the front and back lips are different.

[0051] Based on the above theory about the human facial nerves, in this embodiment, the number of pressure sensors 140 is preferably four and is distributed at the four points of the front, back, left and right of the polar plate, wherein,

[0052] The two pressure sensors 140 located at the front and back positions of the substrate 150 are configured as the first group, which is used to monitor the pressure generated by the philtrum and chin positions of the face;

[0053] The two pressure sensors 140 located at the left and right positions of the substrate 150 are configured as the second group, which is used to monitor the pressure generated by the left and right cheek positions.

[0054] Considering the different nerve domination characteristics of the philtrum, chin and cheek, the two groups of pressure sensors 140 are set up specifically, which can more accurately capture the actual pressing condition of each part of the user's face. This multi-point accurate pressure detection method can improve the accuracy of the face alignment judgment, avoid false judgments caused by a single sensor that cannot distinguish the pressure of different parts, reduce the measurement error caused by the face not being aligned or not being pressed tightly, and enhance the data reliability and accuracy of the spirometer.

[0055] Specifically, the determination method is as follows:

[0056] 1. Intra-group pressure difference determination: when the difference between the readings of the pressure sensors 140 in the same group exceeds the threshold value, it is determined that the face is not aligned, and the detection instrument 100 triggers a red light warning;

[0057] For example, if the readings of the two pressure sensors 140 in the first group (the philtrum and chin positions) differ too much, it means that the pressure applied at these two positions is not balanced, one position is under excessive stress, and the other position may be at risk of air leakage, which means that the user has not correctly aligned the mouthpiece. At this time, the detection instrument 100 will trigger a red light warning to prompt the user to adjust the facial position.

[0058] 2. Inter-group pressure difference determination: when the difference between the readings of the pressure sensors 140 in two groups exceeds the threshold value, it is determined that the face is not aligned, and the detection instrument 100 triggers a red light warning;

[0059] For example, comparing the overall pressure distribution of the first group (the philtrum and chin positions) and the second group (the left and right cheek positions), if the readings between the two groups differ too much, it means that the pressure applied by the user's cheeks and lips is not balanced, which also means that the user has not correctly aligned the mouthpiece. In this case, the detection instrument 100 will also trigger a red light warning to remind the user to adjust again.

[0060] 3. Correct alignment determination: if the readings of all pressure sensors 140 are within the respective threshold value range, i.e. the difference between the readings in the same group is small and the difference between the readings in the two groups is also small, it is determined that the user's face has been correctly aligned. At this time, the detection instrument 100 will trigger a green light, allowing the lung capacity test to be performed.

[0061] By accurately monitoring the pressure changes in different areas, it can more accurately determine whether the user's face is correctly aligned, thereby ensuring the authenticity and reliability of the measurement data, while setting a reasonable threshold range to avoid false positives due to slight pressure fluctuations, and ensuring that only when the actual alignment is incorrect will an alarm signal be issued, enhancing the stability and credibility of the system.

[0062] Preferably, the outer peripheral wall of the rubber sleeve 131 is provided with an annular protrusion 1311, which is designed to allow the rubber sleeve 131 to have a certain buffering capacity after being pressed, and at the same time, the deformation caused by the pressure can drive the response plate 150 to press down, so that the contact 151 and the pressure sensor 140 can effectively contact and transmit pressure, while preventing the pressure sensor 140 from being damaged due to excessive pressure, prolonging the service life.

[0063] Preferably, the surface of the outer shell 120 is provided with an arc-shaped groove 122, which is designed to facilitate the user to hold and perform lung capacity detection.

[0064] The technical means disclosed in the utility model scheme are not limited to the technical means disclosed in the above technical means, and also include technical schemes composed of any combination of the above technical features. The above is the specific implementation of the utility model, and it should be pointed out that, for ordinary technical personnel in the technical field, without departing from the principle of the utility model, some improvements and refinements can be made, and these improvements and refinements are also considered to be within the protection scope of the utility model.

[0065] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the utility model embodiments are only used to explain the relative positional relationship, movement condition, etc. between components in a certain specific posture (as shown in the drawings), and if the specific posture changes, the directional indications will also change accordingly.

[0066] In addition, the description of "one", "a", "an" and the like in the utility model is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "one", "a" can explicitly or implicitly include at least one of the features. In the description of the utility model, the meaning of "multiple" is at least two, for example, two, three, etc., unless otherwise specifically limited.

[0067] In the utility model, unless otherwise specifically defined and limited, the terms "connection", "fixing" and the like should be understood broadly, for example, "fixing" can be fixed connection, or detachable connection, or integral; can be mechanical connection, or electrical connection; can be directly connected, or indirectly connected through intermediate medium; can be the internal communication of two elements or the interaction relationship of two elements, unless otherwise specifically limited. For ordinary technical personnel in the art, the specific meaning of the above terms in the utility model can be understood according to the specific situation.

[0068] In addition, the technical solutions of each embodiment of the utility model can be combined with each other, but it must be based on that the ordinary technical personnel in the art can realize, when the combination of technical solutions appears mutual contradiction or cannot be realized, it should be considered that the combination of technical solutions does not exist, and is not within the protection scope required by the utility model.

Claims

1. A spirometer, characterized by comprising: The utility model relates to a detection instrument for face alignment, comprising: a detection instrument having a vent tube extending outwardly; an outer housing having a through hole in the axial direction, the vent tube being inserted into the through hole, the outer housing having a mounting groove at one end of the through hole; a connecting assembly arranged in the mounting groove, the connecting assembly having an end away from the outer housing for mounting a mouthpiece; a plurality of pressure sensors arranged and distributed on the base surface at the bottom of the mounting groove; a response plate connected to the connecting assembly, the response plate having contacts corresponding to the pressure sensors; when the mouthpiece is pressed, the connecting assembly drives the response plate to press down and make the contacts of the response plate contact the pressure sensors, the detection instrument determines whether the user's face is aligned according to the reading difference of each pressure sensor and triggers a red light warning or a green light to allow testing accordingly.

2. The spirometer of claim 1, wherein The connecting assembly includes a rubber sleeve inserted into the mounting groove, the rubber sleeve being in communication with the vent tube through the through hole.

3. The spirometer of claim 2, wherein The connecting assembly further includes a connecting piece inserted into the rubber sleeve, the connecting piece having an end away from the rubber sleeve for inserting and mounting a mouthpiece.

4. The spirometer of claim 3, wherein The connecting piece is in the form of a funnel structure, one end of the connecting piece being inserted into the rubber sleeve and the other end gradually expanding from inside to outside to match the shape of the mouthpiece.

5. The spirometer of claim 1, wherein The pressure sensors are arranged in four and distributed on the front, rear, left and right points of the base surface of the mounting groove.

6. The spirometer of claim 4, wherein The two pressure sensors at the front and rear positions of the base surface of the mounting groove are configured as a first group, and the two pressure sensors at the left and right positions of the base surface of the mounting groove are configured as a second group, wherein the pressure sensors of the first group are used to monitor the pressure generated by the philtrum and chin positions of the face; the pressure sensors of the second group are used to monitor the pressure generated by the left and right cheek positions.

7. The spirometer of claim 6, wherein When the reading difference of the pressure sensors in the same group exceeds a threshold value, it is determined that the face is not aligned, and the detection instrument triggers a red light warning.

8. The spirometer of claim 6, wherein When the reading difference of the pressure sensors in the two groups exceeds a threshold value, it is determined that the face is not aligned, and the detection instrument triggers a red light warning.

9. The spirometer of claim 2, wherein The outer peripheral wall of the rubber sleeve is provided with an annular protrusion arranged outwardly.

10. The spirometer of claim 1, wherein The surface of the outer housing is provided with an arc-shaped groove for hand holding.

Images