Ultrasonic sensor, ultrasonic detection device and respiratory treatment equipment

Abstract

The utility model relates to the technical field of detection equipment, and provides an ultrasonic sensor, an ultrasonic detection device and respiratory therapy equipment. The ultrasonic sensor comprises a main body pipeline and an ultrasonic probe; the main body pipeline comprises a horizontal pipeline, an inlet pipeline and an outlet pipeline; one end of the horizontal pipeline is connected with the inlet pipeline, and the other end is connected with the outlet pipeline; the ultrasonic probe comprises a first probe and a second probe, the first probe and the second probe are oppositely arranged, the first probe is located on one side of the horizontal pipeline, and the second probe is located on the other side of the horizontal pipeline; and an ultrasonic path between the first probe and the second probe is parallel to the central axis of the horizontal pipeline. According to the ultrasonic sensor provided by the invention, the uniformity and smoothness of the airflow are ensured by setting the airflow motion path, and the noise of the whole machine is reduced; meanwhile, the emitted ultrasonic waves can be in full contact with the gas introduced into the horizontal pipeline, the influence of the gas on the ultrasonic wave emitting and receiving time difference is optimal, and the detection precision is improved.

Description

Technical Field

[0001] The present application relates to the technical field of detection equipment, and in particular to an ultrasonic sensor, an ultrasonic detection device, and a respiratory therapy device. Background Art

[0002] Hospitals often need to test patients' exhaled gases, oxygen, etc., and therefore require corresponding medical testing equipment. At the same time, with the development of medical technology, high requirements are placed on the detection stability and accuracy of medical testing equipment.

[0003] Existing medical gas sensors are mainly ultrasonic sensors, including a straight tube steady flow section and a stack of ultrasonic probes. The ultrasonic wave and the steady flow section are tilted, and the cross-sections at both ends of the steady flow section are increased, so that the gas flows into the steady flow section at an accelerated speed, and the gas concentration is measured by the velocity difference method through the tilted ultrasonic probe; however, the process increases the gas flow rate and the air resistance of the entire airway, destroying the unity and smoothness of the airway. In order to maintain the gas flow rate unchanged (the unity of the airway), the fan speed needs to be increased, which shortens the life of the fan and increases the noise of the whole machine. Moreover, the ultrasonic wave only detects the gas in a specific area within the steady flow section. The gas fails to fully contact the emitted ultrasonic wave, and the effect on the time difference between ultrasonic wave transmission and reception is weak, resulting in a waste of part of the gas flow and affecting the detection accuracy.

[0004] Therefore, existing ultrasonic sensors have the problems of increasing airway resistance, increasing overall noise, and reducing detection stability and accuracy. Utility Model Content

[0005] In view of the above-mentioned deficiencies in the prior art, the purpose of this application is to provide an ultrasonic detection device and respiratory therapy equipment, aiming to solve the problems of existing ultrasonic sensors that increase airway resistance, increase overall machine noise and reduce detection accuracy.

[0006] The technical solution adopted by this application to solve the technical problem is as follows: an ultrasonic sensor is provided, including a main pipe and an ultrasonic probe; the main pipe includes a horizontal pipe, an inlet pipe and an outlet pipe; one end of the horizontal pipe is connected to the inlet pipe, and the other end is connected to the outlet pipe; the ultrasonic probe includes a first probe and a second probe, the first probe and the second probe are arranged opposite to each other, the first probe is located on one side of the horizontal pipe, and the second probe is located on the other side of the horizontal pipe; the ultrasonic path between the first probe and the second probe is parallel to the central axis of the horizontal pipe.

[0007] Optionally, a first inlet connection portion is provided between the horizontal pipe and the inlet pipe, and the first inlet connection portion is bent; a first outlet connection portion is provided between the horizontal pipe and the outlet pipe, and the first outlet connection portion is bent.

[0008] Optionally, a third inlet connection portion is provided between the horizontal pipe and the inlet pipe; one end of the third inlet connection portion is connected to the first inlet connection portion, and the other end is connected to the horizontal pipe or the inlet pipe; the third inlet connection portion is bent, and the center of the first inlet connection portion deviates from the center of the third inlet connection portion.

[0009] Optionally, a third outlet connection portion is provided between the horizontal pipe and the outlet pipe; one end of the third outlet connection portion is connected to the first outlet connection portion, and the other end is connected to the horizontal pipe or the outlet pipe; the third outlet connection portion is bent, and the center of the first outlet connection portion deviates from the center of the third outlet connection portion.

[0010] Optionally, the horizontal pipe is connected to the inlet pipe in an arc shape, and the horizontal pipe is connected to the outlet pipe in an arc shape; the cross-sections of the horizontal pipe, inlet pipe and outlet pipe are the same, and are all one of circular, elliptical, square and quadrilateral.

[0011] Optionally, a second notch is provided at the connection between the horizontal pipe and the inlet pipe, and a first notch is provided at the connection between the horizontal pipe and the outlet pipe, and the first notch and the second notch are provided correspondingly; the center line between the first notch and the second notch is parallel to the center axis of the horizontal pipe.

[0012] Optionally, the ultrasonic sensor further includes a first ultrasonic connecting tube and a second ultrasonic connecting tube; the first ultrasonic connecting tube is connected to the first notch, and the second ultrasonic connecting tube is connected to the second notch; the first probe is located in the first ultrasonic connecting tube, and the second probe is located in the second ultrasonic connecting tube.

[0013] Optionally, a reinforcement collar is provided on the horizontal pipe, and a fixing piece is provided on the reinforcement collar.

[0014] The present application also provides an ultrasonic detection device, including a device body and an ultrasonic sensor, wherein the ultrasonic sensor is the ultrasonic sensor as described above, the device body is a cavity structure, and the ultrasonic sensor is located inside the device body; a gas inlet and a gas outlet are provided on the device body; the gas inlet is connected to the inlet pipe, and the gas outlet is connected to the outlet pipe.

[0015] Optionally, an abutment groove corresponding to the ultrasonic sensor is provided inside the device body; a first connecting tube is provided on one side of the abutment groove, and a second connecting tube is provided on the other side; the first connecting tube is provided corresponding to the first probe, and the second connecting tube is provided corresponding to the second probe.

[0016] In addition, the present application also provides a respiratory therapy device, comprising the ultrasonic sensor as described above.

[0017] Compared with the prior art, the present application provides an ultrasonic sensor, an ultrasonic detection device and a respiratory therapy device, wherein the main pipe of the ultrasonic sensor includes a horizontal pipe connected to the inlet pipe and the outlet pipe on both sides respectively. The airflow is buffered by the inlet pipe and then passes into the horizontal pipe and then passes out through the outlet pipe. By setting the airflow movement path, the uniformity and smoothness of the airflow are guaranteed, the gas flow rate and the air resistance of the entire airway are reduced, and there is no need to increase the fan speed subsequently, thereby reducing the noise of the whole machine; at the same time, the ultrasonic probes are arranged on both sides of the horizontal pipe, and the ultrasonic path is parallel to the central axis of the horizontal pipe. The emitted ultrasonic wave can fully contact the gas passed into the horizontal pipe, and the influence of the gas on the time difference between ultrasonic emission and reception is optimized, thereby improving the detection accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic diagram and a horizontal cross-sectional view of an embodiment of the ultrasonic sensor provided in the present application;

[0019] Figure 2 is a schematic diagram and a horizontal cross-sectional view of an embodiment of the ultrasonic sensor provided in the present application;

[0020] Figure 3 is a schematic diagram and a horizontal cross-sectional view of an embodiment of the ultrasonic sensor provided in the present application;

[0021] Figure 4 is a schematic diagram and a horizontal cross-sectional view of an embodiment of the ultrasonic sensor provided in the present application;

[0022] Figure 5 is a top view of the ultrasonic detection device (including the ultrasonic sensor) provided in this application;

[0023] Figure 6 is a top view of the ultrasonic detection device (excluding the ultrasonic sensor) provided in this application;

[0024] Figure 7 Schematic diagram of the ultrasonic detection device provided in this application.

[0025] Description of reference numerals:

[0026] 001. Ultrasonic sensor; 1. Main pipe; 11. Horizontal pipe; 12. Outlet pipe; 121. First notch; 122. First outlet connection; 123. Second outlet connection; 124. Third outlet connection; 13. Inlet pipe; 131. Second notch; 132. First inlet connection; 133. Second inlet connection; 134. Third inlet connection; 14. Reinforcement ring; 141. First fixing member; 142. Second fixing member; 2. First probe; 21. First ultrasonic connecting tube; 3. Second probe; 31. Second ultrasonic connecting tube; 100. Ultrasonic detection device; 101. Gas inlet; 102. Connector; 103. Abutment groove; 104. Storage rack; 105. First connecting tube; 106. Second connecting tube. DETAILED DESCRIPTION

[0027] The following describes in detail embodiments of the present application. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application and are not to be construed as limiting the present application.

[0028] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise specified, "multiple" means two or more.

[0029] In the description of this application, it should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to direct connections or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0030] Ultrasonic sensors can detect gases and can be used in devices such as ventilators, oxygen concentrators, and humidifiers. The airflow can be driven by fans to ensure the integrity and uniformity of the airway. Improving the gas detection accuracy of ultrasonic sensors can better adjust the gas concentration according to the gas detection results, making it easier to understand the patient's physical condition and promoting the patient's recovery. During the process, it is necessary to maintain the uniformity and smoothness of the airway to prevent airway changes from affecting the physical condition of the patient using the device. At the same time, in order to facilitate the patient's rest and maintenance, the noise of the device must be reduced.

[0031] However, the existing ultrasonic sensors have insufficient detection accuracy. When used in devices such as ventilators, oxygen concentrators, and humidifiers, they will increase the gas flow rate. In order to ensure the uniformity and smoothness of the airway, the fan speed needs to be increased, resulting in increased noise of the entire machine and affecting the patient's rest.

[0032] To this end, combined with reference Figure 1 、 Figure 2 、 Figure 3 and Figure 4 In the first embodiment of the present application, an ultrasonic sensor 001 is provided, including a main pipe 1 and an ultrasonic probe; the main pipe 1 includes a horizontal pipe 11, an inlet pipe 13 and an outlet pipe 12; one end of the horizontal pipe 11 is connected to the inlet pipe 13, and the other end is connected to the outlet pipe 12; the ultrasonic probe includes a first probe 2 and a second probe 3, the first probe 2 and the second probe 3 are arranged opposite to each other, the first probe 2 is located on one side of the horizontal pipe 11, and the second probe 3 is located on the other side of the horizontal pipe 11; the ultrasonic path between the first probe 2 and the second probe 3 is parallel to the central axis of the horizontal pipe 11.

[0033] Among them, the horizontal pipe 11, the inlet pipe 13 and the outlet pipe 12 constitute an airway for the movement of airflow. The airflow enters the horizontal pipe 11 through the inlet pipe 13 for ultrasonic detection and then passes out through the outlet pipe 12. By setting the airflow movement path (airway), the uniformity and smoothness of the airflow are guaranteed, and the gas flow rate and the air resistance of the entire airway are reduced.

[0034] The first probe 2 and the second probe 3 are arranged opposite to each other, one is used to transmit ultrasonic waves and the other is used to receive ultrasonic waves, forming an ultrasonic path for ultrasonic transmission and reception; the first probe 2 and the second probe 3 are respectively arranged on both sides of the horizontal pipe 11, and the ultrasonic path is parallel to the central axis of the horizontal pipe 11. The transmitted ultrasonic wave can fully contact the airflow flowing in the horizontal pipe 11, so that the influence of the gas on the time difference of ultrasonic transmission and reception is optimized, the airflow in the pipe is fully utilized, and the detection accuracy is improved.

[0035] The ultrasonic sensor 001 of this embodiment has a main pipe 1 including a horizontal pipe 11 connected to an inlet pipe 13 and an outlet pipe 12 on both sides. The airflow is buffered by the inlet pipe 13 and then passes into the horizontal pipe 11 and then passes out through the outlet pipe 12. By setting the airflow movement path, the uniformity and smoothness of the airflow are guaranteed, the gas flow rate and the air resistance of the entire airway are reduced, and there is no need to increase the fan speed subsequently, which reduces the noise of the whole machine. At the same time, the ultrasonic probes are set on both sides of the horizontal pipe 11, and the ultrasonic path is parallel to the central axis of the horizontal pipe 11. The emitted ultrasonic wave can fully contact the gas passed into the horizontal pipe 11, and the effect of the gas on the time difference between ultrasonic emission and reception is optimized, thereby improving the detection accuracy. In addition, the ultrasonic sensor 001 of this embodiment has high precision, does not require calibration, has a simple structure, a long service life, and is low cost.

[0036] In some embodiments, a first inlet connection portion 132 is provided between the horizontal pipe 11 and the inlet pipe 13, and the first inlet connection portion 132 is provided in a bent manner. A first outlet connection portion 122 is provided between the horizontal pipe 11 and the outlet pipe 12, and the first outlet connection portion 122 is provided in a bent manner. That is, the airway formed by the horizontal pipe 11, the inlet pipe 13, and the outlet pipe 12 is not a single horizontal path. The airway includes the first inlet connection portion 132 and the first outlet connection portion 122, which are provided in a bent manner. The gas bends as it flows through the first inlet connection portion 132 and the first outlet connection portion 122, reducing the gas flow rate. This can slow down and even the airflow entering the horizontal pipe 11, thereby reducing air resistance.

[0037] Furthermore, the bend angles of the first inlet connection portion 132 and the first outlet connection portion 122 are preferably right or acute angles to prevent excessive obstruction of gas flow, which could result in low gas flow rates, prolonged gas detection time, and the need to increase subsequent blower speeds to achieve continuous gas flow in the airway, increasing overall noise levels and affecting the uniformity and smoothness of subsequent gas flow in the airway. The bend angles of the first inlet connection portion 132 and the first outlet connection portion 122 can be different, and the gas flow rate can be adjusted by adjusting the bend angles.

[0038] In some embodiments, a third inlet connection portion 134 is provided between the horizontal duct 11 and the inlet duct 13. One end of the third inlet connection portion 134 is connected to the first inlet connection portion 132, and the other end is connected to the horizontal duct 11 or the inlet duct 13. The third inlet connection portion 134 is bent, with the center of the first inlet connection portion 132 and the center of the third inlet connection portion 134 diverging from each other. The provision of the first inlet connection portion 132 and the third inlet connection portion 134 facilitates connection of inlet ducts 13 at different angles to the horizontal duct 11. The bending angle between the first inlet connection portion 132 and the third inlet connection portion 134 is preferably a right angle or an acute angle, facilitating connection between the two and facilitating airflow, thereby preventing discontinuity in airflow caused by excessive bending.

[0039] A second inlet connection part 133 may also be provided between the first inlet connection part 132 and the third inlet connection part 134; the second inlet connection part 133 is preferably a straight tube, one end of which is connected to the first inlet connection part 132, and the other end is connected to the third inlet connection part 134. By adjusting the length of the second inlet connection part 133, the unstable gas flow rate after the gas is bent is stabilized, so that the gas moves evenly in the pipeline.

[0040] Similarly, in some embodiments, a third outlet connection portion 124 is provided between the horizontal pipe 11 and the outlet pipe 12; one end of the third outlet connection portion 124 is connected to the first outlet connection portion 122, and the other end is connected to the horizontal pipe 11 or the outlet pipe 12; the third outlet connection portion 124 is bent, and the center of the first outlet connection portion 122 deviates from the center of the third outlet connection portion 124. The provision of the first outlet connection portion 122 and the third outlet connection portion 124 facilitates the connection of outlet pipes 12 at different angles to the horizontal pipe 11; the bending angle of the first outlet connection portion 122 and the third outlet connection portion 124 is preferably a right angle or an acute angle, which facilitates the connection between the two, facilitates the passage of airflow, and prevents discontinuity of airflow due to excessive bending angles.

[0041] A second outlet connection part 123 can also be provided between the first outlet connection part 122 and the third outlet connection part 124; the second outlet connection part 123 is preferably a straight pipe, one end of which is connected to the first outlet connection part 122, and the other end is connected to the third outlet connection part 124. By adjusting the length of the second outlet connection part 123, the unstable gas flow rate after the gas is bent is stabilized, so that the gas moves evenly in the pipeline.

[0042] In some embodiments, the horizontal pipe 11 is connected to the inlet pipe 13 in an arc shape, or the horizontal pipe 11 is connected to the outlet pipe 12 in an arc shape; the cross-sections of the horizontal pipe 11, the inlet pipe 13 and the outlet pipe 12 are the same, and are all one of circular, elliptical, square and quadrilateral. The arc connection can buffer the gas flowing through and reduce the gas flow rate; the same cross-section includes the same cross-sectional shape and cross-sectional area, which can ensure the overall uniformity and smoothness of the airway, prevent the throttling effect of increasing the speed as the cross-section decreases, and prevent the phenomenon of uneven gas in the pipe caused by the increase in cross-section. Uneven gas will lead to uneven gas flow rate, thereby reducing the detection accuracy of ultrasonic waves. The cross-section is preferably circular, so that the gas introduced is uniform and moves smoothly. The cross-sectional dimensions of the horizontal pipe 11, the inlet pipe 13 and the outlet pipe 12 can be set according to actual needs, such as according to the flow rate of the gas to be measured.

[0043] Specifically, the horizontal pipe 11 is connected to the inlet pipe 13 in an arc shape, and the horizontal pipe 11 is connected to the outlet pipe 12 in an arc shape, and then integrally formed. The obtained ultrasonic sensor 001 is as shown in FIG. Figure 3 The horizontal pipe 11 is connected to the inlet pipe 13 via the first inlet connection portion 132, and the horizontal pipe 11 is connected to the outlet pipe 12 via the first outlet connection portion 122; both the first inlet connection portion 132 and the first outlet connection portion 122 are at acute angles. The ultrasonic sensor 001 is as follows: Figure 1 A. The horizontal pipe 11 is connected to the inlet pipe 13 via a first inlet connection portion 132, and the horizontal pipe 11 is connected to the outlet pipe 12 via a first outlet connection portion 122; the first inlet connection portion 132 and the first outlet connection portion 122 are both at right angles, and the ultrasonic sensor 001 is as follows Figure 4 The horizontal pipe 11 is connected to the inlet pipe 13 through the first inlet connection portion 132, the second inlet connection portion 133 and the third inlet connection portion 134, and the horizontal pipe 11 is connected to the outlet pipe 12 through the first outlet connection portion 122, the second outlet connection portion 123 and the third outlet connection portion 124; the first inlet connection portion 132 and the first outlet connection portion 122, the third inlet connection portion 134 and the third outlet connection portion 124 are all at acute angles, the center of the first inlet connection portion 132 and the center of the third inlet connection portion 134 are intended to deviate, and the center of the third inlet connection portion 134 and the center of the third outlet connection portion 124 are intended to deviate. The ultrasonic sensor 001 is obtained as shown in FIG. Figure 3 C.

[0044] In order to facilitate the application of the ultrasonic sensor 001 in different devices, the ultrasonic probe (including the first probe 2 and the second probe 3) can be detachably connected to the horizontal pipe 11. In some embodiments, a second notch 131 is provided at the connection between the horizontal pipe 11 and the inlet pipe 13, and a first notch 121 is provided at the connection between the horizontal pipe 11 and the outlet pipe 12. The first notch 121 and the second notch 131 are provided correspondingly; the center line connecting the first notch 121 and the second notch 131 is parallel to the central axis of the horizontal pipe 11. The first probe 2 and the second probe 3 correspond to the first notch 121 and the second notch 131, respectively; specifically, in order to improve the airtightness of the main pipe 1 and the airway, the first probe 2 and the second probe 3 are the same size as the first notch 121 and the second notch 131, respectively, and are interlocked and connected.

[0045] In order to further improve the airtightness of the main pipe 1 and the airway, in some embodiments, the ultrasonic sensor 001 further includes a first ultrasonic connecting tube 21 and a second ultrasonic connecting tube 31; the first ultrasonic connecting tube 21 is connected to the first notch 121, and the second ultrasonic connecting tube 31 is connected to the second notch 131. The connection method can be a fixed connection or a detachable connection. The fixed connection is preferably welded, and the detachable connection can be snap-fit. The first probe 2 is located in the first ultrasonic connecting tube 21, and is preferably nested to improve the sealing; the second probe 3 is located in the second ultrasonic connecting tube 31, and is preferably nested to improve the sealing. In addition, a sealing ring can be provided between the first probe 2 and the first ultrasonic connecting tube 21, as well as between the second probe 3 and the second ultrasonic connecting tube 31, to further improve the pipeline sealing, prevent gas leakage, and prevent the detection accuracy from decreasing due to uneven distribution of gas in the pipeline.

[0046] The ultrasonic paths of the first probe 2 and the second probe 3 preferably overlap with the central axis of the horizontal pipe 11, so that the gas at the center of the pipe is more uniform, which can improve the detection accuracy.

[0047] In some embodiments, the horizontal pipe 11 is provided with a reinforcing collar 14, which is provided with a fixing to ensure the stability of the horizontal pipe 11. Furthermore, the length of the horizontal pipe 11 can be adjusted according to actual needs. When the horizontal pipe 11 is longer, several straight pipes can be connected. To ensure the sealing of the horizontal pipe 11, several adjacent straight pipes can be interlocked and connected, and the inner diameters or inner cross-sectional areas of the adjacent straight pipes are the same to ensure uniform gas distribution. Furthermore, the connection between the adjacent straight pipes can be provided with a reinforcing collar 14, which can also be provided with fixings to improve the connection stability of the adjacent straight pipes. The fixings include a first fixing 141 and a second fixing 142. The first fixing 141 can be a larger bolt, and the second fixing 142 can be a smaller bolt. The second fixing 142 can be located near the first fixing 141. Fixings can also be used at the connection between adjacent pipes, such as between the horizontal pipe 11 and the inlet pipe 13, or between the horizontal pipe 11 and the outlet pipe 12, to improve the connection stability.

[0048] The main pipe 1 can also be equipped with temperature sensors, humidity sensors, etc. to detect the temperature or humidity of the gas. The airway of the ultrasonic sensor 001 does not increase the gas flow rate, and has little impact on temperature and humidity. Therefore, the temperature and humidity sensors do not need to be fixed in the ultrasonic detection area, which can reduce the impact on the ultrasonic probe.

[0049] Combined with reference Figure 5 、 Figure 6 and Figure 7 In the second embodiment of the present application, an ultrasonic detection device 100 is provided, including a device body and an ultrasonic sensor 001, the ultrasonic sensor 001 is the ultrasonic sensor 001 of the above-mentioned first embodiment and any one of its implementation modes, the device body is a cavity structure, and the ultrasonic sensor 001 is located inside the device body; a gas inlet 101 and a gas outlet (not marked in the figure) are provided on the device body; the gas inlet 101 is connected to the inlet pipe 13, and the gas outlet is connected to the outlet pipe 12.

[0050] The ultrasonic detection device 100 of this embodiment can be a ventilator, an oxygen concentrator, a humidifier, etc. A gas mixer of the ventilator or oxygen concentrator or a humidifier tank of the humidifier is arranged inside the main body of the device. The gas enters the gas mixer or humidifier tank from the gas inlet 101 and is processed, and then passes out from the gas outlet for use. An ultrasonic sensor 001 can be arranged between the gas inlet 101 or the gas outlet of the main body of the device and the gas mixer or humidifier tank, so as to detect the gas before or after treatment, which is convenient for understanding the gas situation and improving the gas treatment effect.

[0051] In some embodiments, the interior of the device body is provided with an abutment groove 103 corresponding to the ultrasonic sensor 001; a first connecting tube 105 is provided on one side of the abutment groove 103, and a second connecting tube 106 is provided on the other side; the first connecting tube 105 is provided corresponding to the first probe 2, and the second connecting tube 106 is provided corresponding to the second probe 3. Specifically, the first probe 2 can be located within the first connecting tube 105, and the first connecting tube 105 can correspond to the first notch 121, so that the first connecting tube 105 and the first notch 121 are interlocked and connected; the second probe 3 can be located within the second connecting tube 106, and the second connecting tube 106 can correspond to the second notch 131, so that the second connecting tube 106 and the second notch 131 are interlocked and connected. This ensures a stable connection between the device body and the ultrasonic sensor 001, shortens the airway length of the ultrasonic sensor 001, and makes the internal structure of the ultrasonic detection device 100 more compact. The abutting groove 103 corresponds to the main pipe 1 of the ultrasonic sensor 001. Specifically, the abutting groove 103 is engaged with the bottom of the main pipe 1 and is used to be placed in a fixed position of the main pipe 1.

[0052] The device body may also be provided with a connector 102 for fixed connection with other devices or fixing the position of the device body; the device body may also be provided with a shelf 104 for placing items, such as samples to be tested, humidification tanks, etc.

[0053] The third embodiment of the present application provides a respiratory therapy device, including the ultrasonic sensor 001 of the first embodiment and any of its implementations. Ultrasonic sensor 001 is used during respiratory therapy to detect the patient's or user's respiratory gases, thereby understanding the patient's or user's physical condition and adjusting the course of respiratory therapy, oxygen supply parameters, etc., thereby benefiting the patient's or user's physical health and shortening the patient's or user's recovery or treatment process.

[0054] In summary, the present application provides an ultrasonic sensor, an ultrasonic detection device and a respiratory therapy device, wherein the main pipe of the ultrasonic sensor includes a horizontal pipe connected to the inlet pipe and the outlet pipe on both sides respectively. The airflow is buffered by the inlet pipe and then passes into the horizontal pipe and then passes out through the outlet pipe. By setting the airflow movement path, the uniformity and smoothness of the airflow are guaranteed, the gas flow rate and the air resistance of the entire airway are reduced, and there is no need to increase the fan speed subsequently, thereby reducing the noise of the whole machine; at the same time, the ultrasonic probes are arranged on both sides of the horizontal pipe, and the ultrasonic path is parallel to the central axis of the horizontal pipe. The emitted ultrasonic wave can fully contact the gas passed into the horizontal pipe, and the influence of the gas on the time difference between ultrasonic emission and reception is optimized, thereby improving the detection accuracy.

[0055] Finally, it should be noted that the above examples are only used to illustrate the technical solutions of the present application, and not to limit them. Although the present application has been described in detail with reference to the above examples, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the above examples, or make equivalent replacements for some of the technical features therein. These modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the examples in the present application.

Claims

1. An ultrasonic sensor, characterized in that: The ultrasonic probe comprises a main pipe and an ultrasonic probe; the main pipe comprises a horizontal pipe, an inlet pipe and an outlet pipe; one end of the horizontal pipe is connected to the inlet pipe, and the other end is connected to the outlet pipe; the ultrasonic probe comprises a first probe and a second probe, the first probe and the second probe are arranged opposite to each other, the first probe is located on one side of the horizontal pipe, and the second probe is located on the other side of the horizontal pipe; the ultrasonic path between the first probe and the second probe is parallel to the central axis of the horizontal pipe.

2. The ultrasonic sensor according to claim 1, wherein: A first inlet connection portion is provided between the horizontal pipe and the inlet pipe, and the first inlet connection portion is provided in a bent manner; a first outlet connection portion is provided between the horizontal pipe and the outlet pipe, and the first outlet connection portion is provided in a bent manner.

3. The ultrasonic sensor according to claim 2, wherein: A third inlet connection portion is provided between the horizontal pipe and the inlet pipe; one end of the third inlet connection portion is connected to the first inlet connection portion, and the other end is connected to the horizontal pipe or the inlet pipe; the third inlet connection portion is bent, and the center of the first inlet connection portion is deviated from the center of the third inlet connection portion.

4. The ultrasonic sensor according to claim 3, characterized in that A third outlet connection portion is provided between the horizontal pipe and the outlet pipe; one end of the third outlet connection portion is connected to the first outlet connection portion, and the other end is connected to the horizontal pipe or the outlet pipe; the third outlet connection portion is bent, and the center of the first outlet connection portion is deviated from the center of the third outlet connection portion.

5. The ultrasonic sensor according to claim 3, characterized in that The horizontal pipe is connected to the inlet pipe in an arc shape, and the horizontal pipe is connected to the outlet pipe in an arc shape; the cross-sections of the horizontal pipe, the inlet pipe and the outlet pipe are the same, and are all one of circular, elliptical, square and quadrilateral.

6. The ultrasonic sensor according to claim 1, wherein: A second notch is provided at the connection between the horizontal pipe and the inlet pipe, and a first notch is provided at the connection between the horizontal pipe and the outlet pipe. The first notch and the second notch are provided correspondingly; the center line connecting the first notch and the second notch is parallel to the center axis of the horizontal pipe.

7. The ultrasonic sensor according to claim 6, characterized in that The ultrasonic sensor also includes a first ultrasonic connecting tube and a second ultrasonic connecting tube; the first ultrasonic connecting tube is connected to the first notch, and the second ultrasonic connecting tube is connected to the second notch; the first probe is located in the first ultrasonic connecting tube, and the second probe is located in the second ultrasonic connecting tube.

8. The ultrasonic sensor according to claim 1, wherein A reinforcing collar is sleeved on the horizontal pipe, and a fixing piece is provided on the reinforcing collar.

9. An ultrasonic detection device, characterized in that: The device comprises a device body and an ultrasonic sensor, wherein the ultrasonic sensor is an ultrasonic sensor according to any one of claims 1 to 8, the device body is a cavity structure, and the ultrasonic sensor is located inside the device body; a gas inlet and a gas outlet are provided on the device body; the gas inlet is connected to the inlet pipe, and the gas outlet is connected to the outlet pipe.

10. The ultrasonic detection device according to claim 9, characterized in that: An abutting groove corresponding to the ultrasonic sensor is provided inside the device body; a first connecting pipe is provided on one side of the abutting groove, and a second connecting pipe is provided on the other side; the first connecting pipe is provided corresponding to the first probe, and the second connecting pipe is provided corresponding to the second probe.

11. A respiratory therapy device, characterized in that The ultrasonic sensor comprises the ultrasonic sensor according to any one of claims 1 to 8.

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