Detection device and breathing machine

Abstract

The utility model discloses a detection device and a breathing machine, the detection device comprises: an interface tube, one end of which is provided with a pipeline interface used for connecting an air outlet pipeline of the breathing machine, the other end of which is provided with a mask interface used for connecting a mask, the tube wall of which is provided with an installation interface, and the installation interface is communicated with a tube cavity of the interface tube; the upper cover is mounted on the mounting interface; and the detection assembly is mounted in the upper cover and comprises a pressure sensor or / and a sound sensor. The detection device is located between the air outlet pipeline of the breathing machine and the mask, is closer to a patient, can more quickly and accurately detect the breathing pressure change and sound of the patient, and solves the technical problem that in the prior art, the breathing pressure or sound detection of the patient is not accurate.

Description

Technical Field

[0001] The utility model belongs to the technical field of detection equipment, and specifically relates to a detection device and a ventilator. Background Art

[0002] Snoring is also known as snoring. Snoring during sleep at night is often accompanied by apnea, which manifests as drowsiness and lack of energy during the day. This symptom is usually diagnosed as obstructive sleep apnea hypopnea syndrome (OASA) in medicine. Apnea during sleep at night can cause persistent nocturnal hypoxia and hypercapnia, which can lead to complications such as hypertension, coronary heart disease, diabetes and cerebrovascular disease, and severe cases can lead to sudden death at night. Obstructive sleep apnea hypopnea syndrome (OASA) is more common in middle-aged and elderly people and obese patients. With the aging of the population and the increase in obese and overweight people, its prevalence has become an important public health issue worldwide.

[0003] Home ventilators are clinically considered an effective means of treating sleep apnea hypopnea syndrome (OASA). Home ventilators deliver continuous positive pressure airflow to patients to keep their airways open, thereby alleviating their symptoms. Since everyone's height, weight and lung capacity are different, the corresponding treatment pressure for each person is also different. When using a ventilator, a professional doctor or medical staff will set the corresponding treatment pressure level based on the patient's physical condition.

[0004] Existing home ventilators do not have a snoring detection function, and are unable to determine whether a patient is snoring during sleep, nor are they able to determine whether a sleep apnea machine has a therapeutic effect on the patient's snoring.

[0005] Existing home ventilators only have one pressure sensor, which is located inside the ventilator and far away from the mask. The pressure change on the patient side must pass through the pipeline and humidifier before it can be detected by the pressure sensor inside the ventilator. The set pressure of the ventilator generally refers to the pressure on the patient side. Therefore, when the sensor inside the ventilator detects and controls the output of the turbine blower, it is necessary to consider the pressure loss in the humidifier water tank and pipeline and compensate for it. The pressure compensation response of this solution is slow, and because of the existence of compensation, the pressure control on the patient side is inaccurate. Summary of the invention

[0006] The utility model provides a detection device, which solves the technical problem of inaccurate detection of the patient's breathing pressure or sound in the prior art.

[0007] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0008] A detection device is provided between the air outlet pipeline of a ventilator and a face mask. The detection device includes:

[0009] An interface pipe, one end of which is provided with a pipeline interface for connecting to the air outlet pipeline of the ventilator, the other end of which is provided with a face mask interface for connecting to the face mask, and an installation interface is provided on its pipe wall, and the installation interface communicates with the lumen of the interface pipe;

[0010] An upper cover, which is installed on the installation interface;

[0011] A detection component, which is installed in the upper cover and includes a pressure sensor and / or a sound sensor.

[0012] In some embodiments of the present application, a first waterproof and breathable membrane is provided between the lumen of the interface pipe and the upper cover.

[0013] In some embodiments of the present application, a silica gel diaphragm is provided between the lumen of the interface pipe and the upper cover.

[0014] In some embodiments of the present application, the pressure sensor has a calibration joint;

[0015] At a position corresponding to the calibration joint on the upper cover, there is a pore, and the calibration joint communicates with the external space through the pore.

[0016] In some embodiments of the present application, a seal is further provided in the upper cover. The first end face of the seal has a first opening, the second end face of the seal has a second opening, and a gas passage communicating the first opening and the second opening is provided in the seal;

[0017] The first end face of the seal abuts against the inner side wall of the upper cover, and the first opening communicates with the pore. The calibration joint of the pressure sensor extends into the gas passage through the second opening.

[0018] In some embodiments of the present application, a second waterproof and breathable membrane is provided at the pore.

[0019] In some embodiments of the present application, the detection component further includes a wired interface; the wired interface communicates with the pressure sensor and / or the sound sensor;

[0020] A through hole is provided on the upper cover opposite to the wired interface. The wired interface communicates with the through hole, and a sealing ring is installed between the wired interface and the through hole.

[0021] In some embodiments of the present application, the detection component further includes a wireless communication module; the wireless communication module communicates with the pressure sensor and / or the sound sensor.

[0022] In some embodiments of the present application, the detection component further includes a circuit board, and a plurality of indicator lights are arranged on the circuit board;

[0023] Light guide columns are arranged at positions corresponding to each of the indicator lights on the upper cover.

[0024] Based on the design of the above detection device, the present utility model provides a ventilator, which includes the above detection device.

[0025] Compared with the prior art, the advantages and positive effects of the present utility model are as follows: In the detection device and the ventilator of the present utility model, by designing an interface tube, one end of which is provided with a pipeline interface for connecting the air outlet pipeline of the ventilator; the other end is provided with a mask interface for connecting a mask; and an installation interface is arranged on its pipe wall, which is convenient for connecting the upper cover and also convenient for the pressure sensor and the sound sensor to collect pressure signals and sound signals. Therefore, the detection device and the ventilator of the present utility model are located between the air outlet pipeline of the ventilator and the mask, closer to the patient, and can detect the pressure change and sound of the patient's breathing faster and more accurately, solving the technical problem that the detection of the patient's breathing pressure or sound in the prior art is inaccurate.

[0026] After reading the detailed description of the embodiments of the present utility model in conjunction with the drawings, other features and advantages of the present utility model will become clearer. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is a schematic diagram of a principle of an embodiment of the air circuit of the ventilator proposed by the present utility model;

[0028] Figure 2 is a schematic structural diagram of an embodiment of the detection device proposed by the present utility model;

[0029] Figure 3 is a schematic structural diagram of another angle of the detection device proposed by the present utility model;

[0030] Figure 4 is a schematic structural diagram of yet another angle of the detection device proposed by the present utility model;

[0031] Figure 5 is Figure 2 an exploded view of;

[0032] Figure 6 is Figure 2 a sectional view taken along line A-A of;

[0033] Figure 7 is Figure 2 a sectional view taken along line B-B of;

[0034] Figure 8 an assembly schematic diagram of the upper cover and the detection component;

[0035] Figure 9 is Figure 8 the sectional view taken along line B-B;

[0036] Figure 10 is the schematic view of the back side of the circuit board;

[0037] Figure 11 is the schematic view of the front side of the circuit board;

[0038] Figure 12 is the schematic view of the front side of the upper cover;

[0039] Figure 13 is the schematic view of the back side of the upper cover.

[0040] Reference numerals:

[0041] 10. Interface pipe; 11. Pipeline interface; 12. Mask interface; 13. Mounting interface; 14. Lumen;

[0042] 20. Upper cover; 21. Top wall; 22. Side wall; 22-1. Air hole; 22-2. Through hole; 23. Light guide column; 24. Pressing area;

[0043] 30. Detection component; 31. Circuit board; 32. Pressure sensor; 32-1. Measurement joint; 32-2. Calibration joint; 33. Sound sensor; 34. Wired interface; 35. Bluetooth antenna; 36. Indicator light; 37. Switch;

[0044] 41. First waterproof and breathable membrane; 42. Second waterproof and breathable membrane;

[0045] 43. Seal; 43-1. Second opening; 44. Sealing ring. Detailed implementation manners

[0046] In order to make the objectives, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below with reference to the drawings and embodiments.

[0047] It should be noted that in the description of the present utility model, the terms indicating the direction or positional relationship such as "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the direction or positional relationship shown in the drawings. This is only for the convenience of description and does not indicate or imply that the device or component must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0048] In addition, it should be noted that in the description of the present utility model, unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two components. For those skilled in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0049] Embodiment 1

[0050] This embodiment provides a detection device disposed between the air outlet pipeline of a ventilator and a face mask. The detection device includes an interface pipe 10, an upper cover 20, a detection component 30, etc., as shown in Figures 2 to 13 shown.

[0051] The interface pipe 10 has a pipeline interface 11 at one end for connecting to the air outlet pipeline of the ventilator, a face mask interface 12 at the other end for connecting to the face mask, and an installation interface 13 on its pipe wall. The installation interface 13 is in communication with the lumen 14 of the interface pipe 10.

[0052] The upper cover 20 is installed on the installation interface 13. The upper cover 20 is sealingly connected to the installation interface 13.

[0053] In some embodiments of the present application, the upper cover 20 and the installation interface 13 are sealingly connected by means of glue or ultrasonic welding.

[0054] The detection component 30 is installed inside the upper cover 20 and includes a pressure sensor and / or a sound sensor.

[0055] The upper cover 20 has an accommodation space for accommodating the detection component 30.

[0056] The pressure sensor 32 is used to detect a pressure signal and send the detected pressure signal to the ventilator. The sound sensor 33 is used to detect a sound signal and send the detected sound signal to the ventilator.

[0057] The ventilator adjusts the pressure of its air outlet pipeline in a timely manner according to the received pressure signal and / or sound signal.

[0058] The detection device is disposed between the air outlet pipeline of the ventilator and the face mask. The pipeline interface 11 of the interface pipe 10 is connected to the air outlet pipeline of the ventilator, and the face mask interface 12 is connected to the face mask.

[0059] The pipeline interface 11, the face mask interface 12, and the installation interface 13 are all in communication with the lumen 14.

[0060] The air flow output from the air outlet pipeline of the ventilator enters the lumen 14 through the pipeline interface 11 of the interface pipe 10, and then enters the face mask through the face mask interface 12 and is delivered to the patient.

[0061] The pressure and sound in the lumen 14 can be transmitted to the pressure sensor 32 and the sound sensor 33 through the installation interface 13.

[0062] The pressure sensor 32 can measure the pressure in the lumen 14. Since the detection device is located between the air outlet pipeline of the ventilator and the face mask and is closer to the patient, the pressure sensor 32 can detect the pressure change of the patient's breathing faster and more accurately.

[0063] The sound sensor 33 can measure the sound in the lumen 14. Since the detection device is located between the air outlet pipeline of the ventilator and the face mask and is closer to the patient, it is less affected by the noise of the ventilator itself. Therefore, the sound sensor 33 can detect the patient's sound (snoring) more accurately.

[0064] In the detection device of this embodiment, by designing the interface pipe 10, one end is provided with a pipeline interface 11 for connecting the air outlet pipeline of the ventilator; the other end is provided with a face mask interface 12 for connecting the face mask; and an installation interface 13 is provided on its pipe wall, which is convenient for connecting the upper cover 20 and for the pressure sensor 32 and the sound sensor 33 to collect pressure signals and sound signals. Therefore, the detection device of this embodiment, located between the air outlet pipeline of the ventilator and the face mask and closer to the patient, can detect the pressure change and sound of the patient's breathing faster and more accurately, and solves the technical problem of inaccurate detection of the patient's breathing pressure or sound in the prior art.

[0065] In some embodiments of the present application, a first waterproof breathable membrane 41 is provided between the lumen 14 of the interface pipe 10 and the upper cover 20.

[0066] The first waterproof breathable membrane 41 is used to prevent the water in the lumen 14 of the interface pipe 10 from entering the detection component 30 in the upper cover 20, avoid moisture damage to the pressure sensor 32, the sound sensor 33, etc., extend the service life of the pressure sensor 32 and the sound sensor 33, and ensure the detection accuracy of the pressure sensor 32 and the sound sensor 33.

[0067] The characteristic of the waterproof breathable membrane is that only gas is allowed to pass through and water is not allowed to pass through. Therefore, it can achieve the purpose of isolating the entry of liquid water. The first waterproof breathable membrane 41 can prevent the condensed water in the air outlet pipeline of the ventilator from contacting the detection component 30.

[0068] The pressure sensor 32 can directly measure the lumen pressure through the first waterproof breathable membrane 41.

[0069] The sound sensor 33 can also detect the snoring of the patient during breathing through the first waterproof breathable membrane 41.

[0070] The first waterproof and breathable film 41 is fixed in the interface pipe 10 by means of adhesive or ultrasonic welding.

[0071] For example, the first waterproof and breathable film 41 is adhesively or ultrasonically welded to the mounting interface 13.

[0072] In some other embodiments of the present application, a silica gel diaphragm is provided between the lumen of the interface pipe and the upper cover.

[0073] The silica gel diaphragm is fixed to the interface pipe (such as on the mounting interface 13) by means of adhesive or encapsulation process. The silica gel diaphragm and the upper cover enclose a sealed cavity to ensure that the lumen of the interface pipe and the detection component are completely sealed and isolated. When the pressure in the lumen of the interface pipe changes, the silica gel diaphragm moves up and down accordingly, resulting in a change in the pressure of the sealed cavity between the upper cover and the silica gel diaphragm, so that the pressure sensor detects the pressure change. Similarly, when the patient snores, the silica gel diaphragm also vibrates up and down, amplifying the sound so that the sound sensor detects the sound signal.

[0074] The detected pressure signal and sound signal are sent to the ventilator for judgment and compensation.

[0075] Therefore, by designing the silica gel diaphragm, it can not only isolate the lumen from the detection component, but also does not affect the detection of pressure and sound signals.

[0076] In some embodiments of the present application, the pressure sensor 32 has a calibration joint 32-2. At the position on the upper cover 20 corresponding to the calibration joint 32-2, there is an air hole 22-1, and the air hole 22-1 communicates with the external space; the calibration joint 32-2 communicates with the external space through the air hole 22-1.

[0077] The calibration joint 32-2 communicates with the external space for calibrating the pressure sensor to ensure the detection accuracy of the pressure sensor.

[0078] Therefore, the pressure sensor 32 has two joints: a measurement joint 32-1 and a calibration joint 32-2. The measurement joint 32-1 and the calibration joint 32-2 are not internally connected.

[0079] The measurement joint 32-1 is used to detect the pressure of the lumen 14, and the calibration joint 32-2 is used to calibrate the pressure sensor.

[0080] In some embodiments of the present application, a seal 43 is further provided inside the upper cover 20. The first end face of the seal 43 has a first opening, the second end face of the seal 43 has a second opening 43-1, and the seal 43 has a gas channel connecting the first opening and the second opening 43-1.

[0081] The first end face of the seal 43 abuts against the inner side wall of the upper cover 20, and the first opening is aligned and communicated with the air hole 22-1. The calibration joint 32-2 of the pressure sensor 32 extends into the gas passage of the seal 43 through the second opening 43-1.

[0082] The calibration joint 32-2 of the pressure sensor 32 is communicated with the external space through the gas passage 43-1 of the seal 43 and the air hole 22-1.

[0083] The seal 43 is used to seal the calibration joint 32-2 of the pressure sensor 32 and the upper cover 20.

[0084] By designing the seal 43 with the above structure, it is ensured that the calibration joint 32-2 of the pressure sensor 32 can be communicated with the external space, and the airtightness of the upper cover 20 is ensured.

[0085] In some embodiments of the present application, the seal 43 is a sealing silica gel with good sealing performance. The first end face and the second end face of the seal are two opposite end faces. The first end face faces the air hole 22-1, and the second end face faces the calibration joint 32-2.

[0086] In some embodiments of the present application, a second waterproof and breathable membrane 42 is provided at the air hole 22-1.

[0087] The second waterproof and breathable membrane 42 only allows gas to pass through and does not allow water to pass through, preventing moisture in the external space from directly entering the pressure sensor 32 through the gas passage of the seal 43 and avoiding damage to the pressure sensor 32 due to moisture.

[0088] In some embodiments of the present application, in order to facilitate the wired signal transmission between the pressure sensor 32, the sound sensor 33 and the ventilator, the detection component 30 further includes a wired interface 34. The wired interface 34 communicates with the pressure sensor 32 and the sound sensor 33 respectively.

[0089] A through hole 22-2 is provided on the upper cover 20 opposite to the wired interface 34. The wired interface 34 is communicated with the through hole 22-2, and a sealing ring 44 is installed between the wired interface 34 and the through hole 22-2.

[0090] The data line passes through the through hole 22-2 and is electrically connected to the wired interface 34 for signal transmission.

[0091] The sealing ring 44 is located between the wired interface 34 and the upper cover 20 and is used to seal the wired interface 34 and the upper cover 20 to ensure airtightness.

[0092] By providing the seal 43 and the sealing ring 44, the airtightness of the lumen 14 of the interface tube 10 is ensured, and further the seal of the ventilator airway is ensured, and the accuracy of pressure measurement and sound measurement is ensured.

[0093] In some embodiments of the present application, in order to facilitate the wireless signal transmission between the pressure sensor 32, the sound sensor 33 and the ventilator, the detection component 30 further includes a wireless communication module. The wireless communication module communicates with the pressure sensor and the sound sensor.

[0094] In this embodiment, the wireless communication module is a Bluetooth module. The Bluetooth module includes a Bluetooth chip and a Bluetooth antenna 35. The pressure sensor 32 and the sound sensor 33 are respectively connected to the Bluetooth chip, and the Bluetooth chip is connected to the Bluetooth antenna 35.

[0095] The pressure sensor 32 sends the detected pressure signal to the wired interface or the wireless communication module, and transmits it to the ventilator through the wired interface or the wireless communication module.

[0096] The sound sensor 33 sends the detected sound signal to the wired interface or the wireless communication module, and transmits it to the ventilator through the wired interface or the wireless communication module.

[0097] In some embodiments of the present application, the detection component further includes a circuit board 31, and a plurality of indicator lights 36 are arranged on the circuit board 31 for indicating the operating state of the detection device.

[0098] Light guide columns 23 are arranged at positions corresponding to each indicator light on the upper cover 20. The light of the indicator light 36 can be smoothly transmitted out of the upper cover 20 through the corresponding light guide column, so as to be easily seen by the user.

[0099] Sealing treatment is performed between the upper cover 20 and the light guide column 23 to avoid air leakage.

[0100] A switch 37 is also arranged on the circuit board 31, and a pressing area 24 is arranged at the corresponding position on the upper cover 20. The switch 37 abuts against the bottom of the pressing area 24. When the user presses the top of the pressing area 24, the switch 37 is triggered through the pressing area 24. The switch 37 is used to control the operation and stop of the detection device.

[0101] When the pressing area 24 is pressed, the detection device operates. When the pressing area 24 is pressed again, the detection device stops operating.

[0102] For example, four indicator lights are arranged on the circuit board 31: a wireless indicator light (Bluetooth indicator light), a wired indicator light, a data transmission indicator light, and an operation indicator light. Correspondingly, four light guide columns are arranged on the upper cover 20. The four light guide columns correspond to the four indicator lights one by one.

[0103] The operation indicator light is used to indicate whether the detection device is operating. When the detection device is operating, the operation indicator light is on; when the detection device is not operating, the operation indicator light is off.

[0104] The data transmission indicator light is used to indicate whether the detection device is transmitting data with the ventilator. When data is being transmitted, the data transmission indicator light is on; when data is not being transmitted, the data transmission indicator light is off.

[0105] The wireless indicator light (Bluetooth indicator light) is used to indicate whether the detection device is wirelessly connected (Bluetooth connected) to the ventilator. When the detection device is wirelessly connected (Bluetooth connected) to the ventilator, the wireless indicator light (Bluetooth indicator light) is on; otherwise, the wireless indicator light (Bluetooth indicator light) is off.

[0106] The wired indicator light is used to indicate whether the detection device is connected to the ventilator via a data cable. When the detection device is connected to the ventilator via a data cable, the wired indicator light is on; otherwise, the wired indicator light is off.

[0107] A battery is also provided on the circuit board 31, which is used to supply power to each electrical device of the detection component. The battery is electrically connected to the wired interface 34. When the wired interface is connected to an external power source, the external power source charges the battery through the wired interface 34.

[0108] Therefore, the wired interface 34 can be used as both a data transmission interface and a charging interface.

[0109] The upper cover 20 includes a top wall 21 and an annular side wall 22 connected together. The side wall 22 and the top wall 21 enclose a receiving space for receiving the detection component 30. The top wall 21 has a light guide column mounting hole for mounting the light guide column 23; the top wall 21 also has a pressing area 24. The side wall 22 has air holes 22-1 and through holes 22-2.

[0110] The top end of the side wall 22 is connected to the top wall 21, and the bottom end of the side wall 22 contacts and is sealed to the top end of the mounting interface 13.

[0111] The detection component 30 includes a circuit board 31 and a pressure sensor 32, a sound sensor 33, a wired interface 34, a wireless communication module, an indicator light 36, and a switch 37 mounted on the circuit board 31. Among them, the indicator light 36 and the switch 37 are arranged on the front side of the circuit board 31, as shown in Figure 11 shown. The pressure sensor 32, the sound sensor 33, the wired interface 34, and the wireless communication module are arranged on the back side of the circuit board 31, as shown in Figure 12 shown. The circuit board 31 is installed inside the upper cover 20, with its front side facing the top wall 21 of the upper cover 20 and its back side facing the mounting interface 13.

[0112] The detection component 30, the sealing ring 44, the seal 43, and the second waterproof and breathable film 42 are first assembled into the upper cover 20, and then the upper cover 20 and the interface pipe 10 are fixed together. The upper cover 20 and the interface pipe 10 are sealed by means of adhesive or ultrasonic welding.

[0113] When the detection device is in use, the pipeline interface 11 is connected to the air outlet pipeline of the ventilator, the mask interface 12 is connected to the mask, and the wired interface 34 is used to connect the data line for data transmission or connect the power supply line to charge the battery.

[0114] The detection device of this embodiment can intuitively collect the snoring condition of the patient through the designed sound sensor and feedback it to the ventilator. The ventilator adjusts the output pressure of the air outlet pipeline according to the snoring condition to directly treat snoring. By designing a pressure sensor (which can be called the patient-end pressure sensor), it can detect the pressure change of the patient's mask faster than the pressure sensor at the machine end, perform compensation and adjustment faster, improve the feedback adjustment speed of the ventilator, and increase the human-machine synchronization.

[0115] Embodiment Two

[0116] Based on the design of the detection device in Embodiment One, this Embodiment Two proposes a ventilator including the described detection device.

[0117] The detection device is arranged between the air outlet pipeline and the mask of the ventilator.

[0118] The air path of the ventilator includes: a pre-stage sound insulation chamber, a flow sensor, a turbo fan, a pressure sensor, a humidifier water tank, an air outlet pipeline, a detection device, and a mask, as shown in Figure 1 shown.

[0119] External air enters the ventilator interior driven by the turbo fan. First, it passes through the pre-stage sound insulation chamber. The function of the pre-stage sound insulation chamber is to reduce the noise generated by the turbo fan from spreading outwards through the air duct in the reverse direction, thereby reducing the noise heard by the patient. The air flow passing through the pre-stage sound insulation chamber then passes through the flow sensor arranged at the front end of the turbo fan for flow measurement, and then enters the turbo fan for pressurization. During the process of the air flow pressurized by the turbo fan being output to the humidifier, pressure measurement is performed through the pressure sensor arranged in the bypass; the air flow passes through the humidifier water tank for heating and humidifying, and then is successively delivered to the patient through the air outlet pipeline, the detection device, and the mask.

[0120] The flow sensor can be arranged in the front-end air path of the turbo fan or in the rear-end air path of the turbo fan.

[0121] The ventilator of this embodiment is a household sleep ventilator. Through the designed detection device, it has the functions of detecting the patient's snoring and pressure at the patient end. According to the sound signal and pressure signal fed back by the detection device, it controls the rotation speed of the turbo fan to change the pressure of the air outlet pipeline.

[0122] The ventilator of this embodiment can detect the snoring of the patient, analyze the snoring of the patient, and make corresponding pressure adjustments to solve the problem of the patient snoring during sleep. At the same time, by using the pressure sensor of the detection device, the pressure change of the patient's breathing can be detected more quickly, and the rotation speed of the turbo fan can be adjusted in time, making the pressure change of the ventilator more rapid and accurate.

[0123] The ventilator of this embodiment designs a detection device between the air outlet pipeline and the mask. Since the detection device is closer to the patient, the pressure change and sound of the patient's breathing can be detected faster and more accurately, solving the technical problem that the detection of the patient's breathing pressure and sound in the prior art is inaccurate.

[0124] Certainly, the above description is not a limitation of the present utility model, and the present utility model is not limited to the above examples. Changes, modifications, additions or substitutions made by those of ordinary skill in the art within the scope of the essence of the present utility model shall also fall within the protection scope of the present utility model.

Claims

1. A detection device, which is arranged between the air outlet pipeline and the mask of a ventilator, characterized in that: The detection device comprises: An interface tube, one end of which is provided with a pipeline interface for connecting to the ventilator's air outlet pipeline, and the other end of which is provided with a mask interface for connecting to the mask, and a mounting interface is provided on the tube wall, and the mounting interface is communicated with the tube cavity of the interface tube; An upper cover, which is mounted on the mounting interface; The detection component is installed in the upper cover and includes a pressure sensor and / or a sound sensor.

2. The detection device according to claim 1, characterized in that: A first waterproof and breathable membrane is arranged between the tube cavity of the interface tube and the upper cover.

3. The detection device according to claim 1, characterized in that: A silicone diaphragm is arranged between the tube cavity of the interface tube and the upper cover.

4. The detection device according to claim 1, characterized in that: The pressure sensor has a calibration joint; A position on the upper cover corresponding to the calibration joint is provided with an air hole, and the calibration joint is communicated with the external space through the air hole.

5. The detection device according to claim 4, characterized in that: A sealing member is also provided in the upper cover, wherein a first end surface of the sealing member has a first opening, a second end surface of the sealing member has a second opening, and a gas passage connecting the first opening and the second opening is provided in the sealing member; The first end surface of the sealing member abuts against the inner side wall of the upper cover, and the first opening is communicated with the air hole, and the calibration joint of the pressure sensor extends into the gas channel through the second opening.

6. The detection device according to claim 4, characterized in that: A second waterproof and breathable membrane is arranged at the air hole.

7. The detection device according to claim 1, characterized in that: The detection component further comprises a wired interface; the wired interface communicates with the pressure sensor and / or the sound sensor; A through hole is provided on the upper cover directly opposite to the wired interface, the wired interface is communicated with the through hole, and a sealing ring is installed between the wired interface and the through hole.

8. The detection device according to claim 1, characterized in that: The detection component also includes a wireless communication module; the wireless communication module communicates with the pressure sensor and / or the sound sensor.

9. The detection device according to any one of claims 1 to 8, characterized in that: The detection component also includes a circuit board, on which a plurality of indicator lights are arranged; A light guide column is arranged at a position on the upper cover corresponding to each of the indicator lights.

10. A ventilator, characterized in that: Comprising the detection device as claimed in any one of claims 1 to 9.

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