A blow detection device

Abstract

The application belongs to the technical field of medical devices, and particularly relates to a blowing detection device, which comprises a blowing assembly and an air pressure detection assembly. The blowing assembly comprises a blowing nozzle and a blowing hose. The air pressure detection assembly comprises a pressure measuring chamber, an air pressure sensor, an air pressure display screen, a controller, an alarm and an upper computer. The air pressure sensor is located in the pressure measuring chamber. The air pressure sensor, the air pressure display screen and the alarm are electrically connected with the controller. The controller is electrically connected with the upper computer. One end of the blowing hose is detachably connected with the blowing nozzle, and the other end of the blowing hose is in communication with the pressure measuring chamber. In the application, the alarm is used to prompt the blowing strength of the patient, and the language guidance of the doctor is not needed, so that the success rate of the foam test is improved. Moreover, the alarm can be set to work at a specific air pressure value according to the condition of the patient, so that the individual difference detection is realized, the unified air pressure value is avoided, the blowing difficulty of part of the patients is reduced, and the success rate of the foam test is improved.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of medical devices, and particularly relates to a blowing detection device. BACKGROUND

[0002] Cryptogenic stroke refers to stroke that cannot find the exact cause after using standard clinical examination procedures. With the development of medicine, more and more causes of cryptogenic stroke such as paradoxical embolism, cerebral artery dissection, obstructive sleep hypopnea syndrome, and hereditary monogenic disease are found. Among them, paradoxical embolism refers to that the venous blood of a patient enters the left heart from the right heart through a right-to-left shunt (R-LS) channel, causing embolism of the large artery of the systemic circulation. Patent foramen ovale (PFO) has a high detection rate and is the most common cause of RLS, in addition to atrial septal tumor, pulmonary arteriovenous fistula, etc. The foramen ovale is a physiological channel of the atrial septum of the heart during the embryonic period, and most people close it within three days after birth, and those who fail to close form a potential channel in the middle of the atrial septum, which is called patent foramen ovale (PFO). Under normal circumstances, the foramen ovale is in a closed state; when the right atrial pressure is higher than the left atrial pressure, impurities such as venous thrombus in the venous system and right atrium may enter the left atrium through the foramen ovale and directly enter the arterial system to cause arterial embolism, which is clinically referred to as "paradoxical embolism", and the thrombus entering the brain will cause ischemic stroke.

[0003] The commonly used method for diagnosing patent foramen ovale in clinic is transcranial Doppler ultrasound bubble test c-TCD, which can be performed under two conditions of rest and Valsalva action. Valsalva action can promote the increase of right atrial pressure and more easily induce the opening of potential PFO, thereby improving the sensitivity of c-TCD examination of PFO. Now doctors let patients do Valsalva action in clinic, and a silicone tube connected with a pressure gauge is used, and then the patient blows air into the silicone tube to perform the bubble test. However, when using the simple blowing device, the patient needs to blow air under the guidance of the doctor, otherwise the patient is easy to blow air insufficiently, resulting in failure of the bubble test. Moreover, the blowing degree of different patients is different, for example, some patients need to blow air to 40mmHg, and some patients can blow air to 30mmHg. The above simple blowing device cannot realize individualized detection. SUMMARY

[0004] The present application aims to provide a blowing detection device to solve the problem that the existing simple blowing device is easy to blow air insufficiently and cause the bubble test to fail.

[0005] In order to achieve the above object, the scheme of the present application is: a blowing detection device, comprising a blowing assembly and a gas pressure detection assembly, the blowing assembly comprises a blowing nozzle and a blowing hose, the gas pressure detection assembly comprises a pressure measuring chamber, a gas pressure sensor, a gas pressure display screen, a controller, an alarm and an upper computer, the gas pressure sensor is located in the pressure measuring chamber, the gas pressure sensor, the gas pressure display screen and the alarm are electrically connected with the controller, and the controller is electrically connected with the upper computer; one end of the blowing hose is detachably connected with the blowing nozzle, and the other end of the blowing hose is communicated with the pressure measuring chamber.

[0006] The working principle and beneficial effects of the scheme are: in the scheme, the gas pressure sensor is used for monitoring the gas pressure value in the pressure measuring chamber, and the gas pressure display screen is used for displaying the gas pressure value in the pressure measuring chamber, so that when the patient blows for the first time, the doctor observes the transcranial Doppler ultrasound image, records the gas pressure value displayed by the gas pressure display screen when the image appears available, and inputs the gas pressure value into the upper computer, and the upper computer takes the gas pressure value as the threshold value for the controller to control the alarm to work. In this way, individual difference detection can be realized, and appropriate gas pressure value can be set according to the patient's own condition, avoiding the use of unified standard for all patients and reducing the difficulty of blowing for patients. Moreover, in the scheme, the alarm works when the gas pressure value in the pressure measuring chamber reaches the threshold value, effectively prompting the patient to maintain the blowing intensity, avoiding the doctor's language guidance to the patient to adjust the blowing intensity, and improving the success rate of the foaming test. Moreover, the scheme can also avoid the patient from constantly staring at the gas pressure display screen, which helps the patient to concentrate on blowing. In addition, since the blowing nozzle is detachably connected with the blowing hose, the blowing nozzle can be replaced after use, thereby avoiding cross infection.

[0007] Optionally, the pressure measuring chamber is communicated with an air inlet pipe, and the blowing hose is detachably connected with the air inlet pipe.

[0008] In the scheme, the blowing hose is detachably connected with the air inlet pipe, so that the blowing hose can be replaced after being damaged.

[0009] Optionally, the device further comprises a disinfection assembly, the disinfection assembly comprises a Y-shaped pipe, the Y-shaped pipe comprises a first pipeline, a second pipeline and a third pipeline, the first pipeline can be detachably connected with one end of the blowing hose away from the pressure measuring chamber, the second pipeline is provided with a first water stop clamp, and the third pipeline is provided with a second water stop clamp.

[0010] In the scheme, the first water stop clamp is used to control the opening and closing of the second pipeline, and the second water stop clamp is used to control the opening and closing of the third pipeline, so that liquid disinfection or ventilation drying of the blowing hose is selected, the disinfection and drying of the blowing hose are realized, and cross infection is avoided.

[0011] Optionally, the disinfecting assembly further comprises a disinfectant bottle, a disinfectant pump and an air heating box, the disinfectant pump is connected with a liquid inlet pipe, the disinfectant pump is connected with a liquid outlet pipe, the liquid inlet pipe extends into the disinfectant bottle, and the liquid outlet pipe is connected with the second pipeline; the air heating box comprises a box body, an air inlet is formed in the side wall of the box body, an electric heating wire, a fan blade and a motor for driving the fan blade to rotate are arranged in the box body, and the box body is connected with an air outlet pipe, and the air outlet pipe is connected with the third pipeline.

[0012] In the scheme, the disinfectant pump is used to pump the disinfectant in the disinfectant bottle, so as to pump the disinfectant into the blowing hose, disinfect the blowing hose, avoid the doctor from injecting the disinfectant into the blowing hose by using a syringe or other auxiliary tools, reduce the workload of the doctor and improve the disinfection efficiency. Moreover, after disinfection is completed, the hot air is blown into the blowing hose by using the air heating box, so as to ventilate and dry the blowing hose.

[0013] Optionally, a partition plate is vertically and slidably connected in the pressure measuring chamber, the partition plate divides the internal space of the pressure measuring chamber into an upper chamber and a lower chamber, a pulling member for pulling the partition plate to vertically slide is arranged in the upper chamber, and initially, the outlet end of the air inlet pipe is located in the upper chamber, and the air pressure sensor is located in the upper chamber; and the bottom of the lower chamber is connected with a liquid discharge pipe.

[0014] In the scheme, during detection, the outlet end of the air inlet pipe is located in the upper chamber, that is, the blowing hose is communicated with the upper chamber, and the air pressure sensor monitors the air pressure value in the upper chamber; and during disinfection or drying of the blowing hose, the partition plate slides under the action of the pulling member, the volume of the upper chamber is reduced, the volume of the lower chamber is increased, the outlet end of the air inlet pipe is located in the lower chamber, and the blowing hose is communicated with the lower chamber. In this way, the disinfectant or hot air for drying can flow into the lower chamber and be discharged through the liquid discharge pipe, so that disinfection or drying of the blowing hose after the blowing hose is separated from the pressure measuring chamber can be avoided, and the air pressure sensor in the upper chamber can be protected from a high humidity environment.

[0015] Optionally, the pulling member is an electromagnet, an iron block is fixedly connected to the upper surface of the partition plate, and a limiting block is arranged on the inner wall of the lower chamber, and initially, the partition plate abuts against the limiting block.

[0016] In the scheme, the pulling member is an electromagnet, the electromagnet generates magnetism when electrified, so as to magnetically attract the iron block on the partition plate, and then the partition plate slides upward and the outlet end of the air inlet pipe is located in the lower chamber.

[0017] Optionally, the pulling member is an electric push rod, and the output end of the electric push rod is fixedly connected with the partition plate.

[0018] In the scheme, the pulling member is an electric push rod, and the electric push rod can pull the partition plate to slide upward and downward when working, so as to make the outlet end of the air inlet pipe located in the upper chamber or the lower chamber.

[0019] Optionally, the bottom end of the drain pipe is threaded with a cap.

[0020] In this protocol, the cap is used to seal the bottom of the drain tube, thus ensuring the airtightness of the lower chamber. This ensures the airtightness of the pressure measuring chamber even if the partition does not completely separate the upper and lower chambers (i.e., gas exchange can occur between them), even during patient testing. Furthermore, in this protocol, the disinfectant remains in the air tube for 1-2 minutes, filling it completely. If the air tube is damaged (leaking), the disinfectant will flow onto the outer wall of the tube, making it easily noticeable to the doctor and allowing for timely replacement, thus preventing multiple test failures due to air leakage.

[0021] Optionally, the bottom end of the drain pipe is threadedly connected to a flow guide hose, and the flow guide hose is provided with a third water-stop clamp.

[0022] In this design, a guide hose is threaded onto the drain pipe. Thus, when disinfecting the air blowing hose, opening the third water stop clamp allows the disinfectant in the lower chamber to flow out through the guide hose, eliminating the need to place a collection bucket below the drain pipe, making it more convenient to use.

[0023] Optionally, the alarm is a buzzer.

[0024] In this approach, a buzzer is chosen as the alarm because it emits an audible signal, allowing the patient to adjust the blowing force solely based on the sound, without needing to visually observe the alarm. This enables the patient to close their eyes and concentrate on blowing, thus improving the success rate of the foaming test. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of a blowing detection device according to Embodiment 1 of the present invention;

[0026] Figure 2 for Figure 1 Schematic diagram of the pressure measuring chamber;

[0027] Figure 3 for Figure 1 A schematic diagram of the structure of the disinfection component;

[0028] Figure 4 This is a longitudinal sectional view of the pressure measuring chamber in Embodiment 2 of the present invention;

[0029] Figure 5 This is a longitudinal sectional view of the pressure measuring chamber in Embodiment 3 of the present invention. Detailed Implementation

[0030] The following detailed description illustrates the specific implementation method:

[0031] The marks in the drawings of the specification include: air blowing nozzle 1, air blowing hose 2, mounting seat 3, pressure measuring chamber 4, upper chamber 410, lower chamber 420, air pressure sensor 5, air pressure display screen 6, controller 7, alarm 8, upper computer 9, air inlet pipe 10, support column 11, Y-shaped pipe 12, first pipe 121, second pipe 122, third pipe 123, disinfectant liquid bottle 13, disinfectant liquid pump 14, first water stop clamp 15, second water stop clamp 16, liquid inlet pipe 17, liquid outlet pipe 18, box 19, air inlet 191, electric heating wire 20, fan blade 21, motor 22, air outlet pipe 23, partition 24, electric push rod 25, liquid discharge pipe 26, flow guide hose 27, third water stop clamp 28, transcranial Doppler ultrasound image display screen 29, electromagnet 30, iron block 31, limit block 32, magnet 33.

[0032] Example one

[0033] This example is basically as shown in Figure 1 and Figure 2 : an air blowing detection device, comprising an air blowing assembly, an air pressure detection assembly, and a disinfection assembly, the air blowing assembly comprising an air blowing nozzle 1 and an air blowing hose 2, the air pressure detection assembly comprising a mounting seat 3, a pressure measuring chamber 4, an air pressure sensor 5, an air pressure display screen 6, a controller 7, an alarm 8, and an upper computer 9, the air pressure sensor 5 being located in the pressure measuring chamber 4, the air pressure sensor 5, the air pressure display screen 6, and the alarm 8 all being electrically connected with the controller 7, and the controller 7 being electrically connected with the upper computer 9. In addition, in this example, the alarm 8 is a buzzer. The pressure measuring chamber 4 is connected with an air inlet pipe 10, one end of the air blowing hose 2 is detachably connected with the air blowing nozzle 1, and the other end of the air blowing hose 2 is detachably connected with the air inlet pipe 10. Specifically, the right end of the air blowing hose 2 is threadedly connected with the air inlet pipe 10, and the left end of the air blowing hose 2 is threadedly connected with the air blowing nozzle 1. The bottom end of the pressure measuring chamber 4 is welded with a support column 11, and the bottom end of the support column 11 is welded on the mounting seat 3.

[0034] In combination with Figure 3 , the disinfection assembly comprises a Y-shaped pipe 12, a disinfectant liquid bottle 13, a disinfectant liquid pump 14, and an air heating box. Among them, the Y-shaped pipe 12 is a hose, the Y-shaped pipe 12 comprises a first pipe 121, a second pipe 122, and a third pipe 123, the first pipe 121 can be detachably connected with the left end of the air blowing hose 2, specifically, the first pipe 121 can be threadedly connected with the left end of the air blowing hose 2; the second pipe 122 is provided with a first water stop clamp 15, and the third pipe 123 is provided with a second water stop clamp 16.

[0035] The inlet of the disinfectant pump 14 is connected with a liquid inlet pipe 17, and the outlet of the disinfectant pump 14 is connected with a liquid outlet pipe 18. The liquid inlet pipe 17 extends into the disinfectant bottle 13 from the disinfectant pump 14, and the liquid outlet pipe 18 is connected with the second pipeline 122 from the disinfectant pump 14. In the embodiment, the liquid outlet pipe 18 is fused with the second pipeline 122. The air heating box comprises a box body 19, and an air inlet 191 is formed in the side wall of the box body 19. The box body 19 is provided with an electric heating wire 20, a fan blade 21, and a motor 22 for driving the fan blade 21 to rotate. The box body 19 is connected with an air outlet pipe 23, and the air outlet pipe 23 is connected with the third pipeline 123 from the box body 19. In the embodiment, the air outlet pipe 23 is fused with the third pipeline 123.

[0036] In combination Figure 2 As shown in the figure, the diaphragm 24 is vertically and slidably connected in the pressure measuring chamber 4, and the diaphragm 24 divides the internal space of the pressure measuring chamber 4 into an upper chamber 410 and a lower chamber 420. The upper chamber 410 is provided with a pulling member for pulling the diaphragm 24 to vertically slide. In the embodiment, the pulling member is an electric push rod 25, the output end of the electric push rod 25 is fixedly connected with the diaphragm 24, and the top of the electric push rod 25 is fixedly installed on the top wall of the upper chamber 410. Initially, the outlet end of the air inlet pipe 10 is located in the upper chamber 410. In addition, the air pressure sensor 5 is located in the upper chamber 410, and specifically, the air pressure sensor 5 is located on the top wall of the upper chamber 410. The bottom of the lower chamber 420 is connected with a liquid discharge pipe 26, and the bottom end of the liquid discharge pipe 26 is threadedly connected with a cover or a flow guide hose 27. In the embodiment, the bottom end of the liquid discharge pipe 26 is threadedly connected with the flow guide hose 27, and the flow guide hose 27 is provided with a third water stop clamp 28.

[0037] In use, the patient first performs a test blowing. In the test blowing, the patient blows air towards the air blowing nozzle 1. Since the outlet end of the air inlet pipe 10 is located in the upper chamber 410, the air pressure in the upper chamber 410 rises, the air pressure sensor 5 monitors the air pressure value in the upper chamber 410, the air pressure value in the upper chamber 410 is displayed on the air pressure display screen 6 in real time, and the air pressure sensor 5 converts the air pressure signal into an electric signal and transmits the electric signal to the controller 7, and the controller 7 controls the alarm 8 to work according to the received electric signal. During the test blowing of the patient, the doctor observes the transcranial Doppler ultrasound image displayed on the transcranial Doppler ultrasound image display screen 29 and the air pressure value displayed on the air pressure display screen 6 (the air pressure display screen 6 is located beside the transcranial Doppler ultrasound image display screen 29). When the transcranial Doppler ultrasound image appears to be available, that is, when the transcranial Doppler ultrasound image appears to be reduced by one-half (the arterial blood flow rate value is reduced by one-half), the air pressure value A displayed on the air pressure display screen 6 at this time is recorded, and the air pressure value A is the air pressure value that the patient should maintain in the upper chamber 410 during the blowing process in the formal detection. After the test blowing is completed, the doctor inputs the air pressure value A into the upper computer 9, and the upper computer 9 sends a command to make the air pressure value A become the threshold value for the controller 7 to control the alarm 8 to work.

[0038] Then, the patient starts the formal test, the patient blows towards the blowing nozzle 1, the air pressure in the upper chamber 410 rises, the air pressure value displayed by the air pressure display screen 6 gradually rises, when the air pressure value in the upper chamber 410 reaches the threshold value, the controller 7 controls the alarm 8 to work, the alarm 8 sends an acoustic signal, reminding the patient that the blowing strength at this time reaches the standard. When the patient's blowing strength becomes smaller (the blowing strength is large, that is, the blowing amount is large, the air pressure value in the upper chamber 410 increases accordingly; the blowing strength is small, that is, the blowing amount is small, the air pressure value in the upper chamber 410 decreases accordingly), the air pressure value in the upper chamber 410 decreases and is less than the threshold value, the controller 7 controls the alarm 8 to stop working, and no longer sends an acoustic signal, therefore, when the patient suddenly does not hear the acoustic signal during blowing, it indicates that the patient should strengthen the blowing strength, until the patient hears the acoustic signal sent by the alarm 8 again. In this way, the patient can adjust his blowing strength according to whether the alarm 8 sends an acoustic signal during blowing, so that the air pressure value in the upper chamber 410 reaches the threshold value, avoiding the patient adjusting the blowing strength under the guidance of the doctor's language, and further avoiding the problem that the patient cannot adjust the blowing strength in time and leads to insufficient blowing, thereby improving the success rate of the bubble test. Moreover, the patient only needs to judge whether the alarm 8 sends an acoustic signal through hearing during blowing, and can close his eyes and concentrate on blowing, thereby improving the patient's blowing concentration. Furthermore, in the embodiment, the specific pressure value of each patient can be obtained through trial blowing, individual difference test is realized, using a unified standard for all patients is avoided, the difficulty of blowing for the patient is reduced, and the success rate of the bubble test is improved.

[0039] When the patient finishes blowing (after the successful completion of the bubble test), the used mouthpiece 1 is removed from the blowing hose 2, and the first pipe 121 of the Y-shaped pipe 12 is screwed to the blowing hose 2. Then, the electric push rod 25 is started, pulling the partition plate 24 to slide upward, the volume of the upper chamber 410 is reduced, the volume of the lower chamber 420 is increased, the outlet end of the air inlet pipe 10 is located in the lower chamber 420, the first water clamp 15 is opened, and the second water clamp 16 is ensured to be closed, the disinfectant pump 14 is started, and the disinfectant (75% alcohol is selected in this embodiment) in the disinfectant bottle 13 flows into the blowing hose 2 through the liquid inlet pipe 17, the liquid outlet pipe 18 and the second pipe 122, and then flows into the lower chamber 420 through the blowing hose 2. After the blowing hose 2 is filled with disinfectant, the disinfectant pump 14 stops working. After 1-2 minutes, observe whether there is disinfectant seepage on the outer surface of the blowing hose 2. If there is, it means that the blowing hose 2 leaks and needs to be replaced; if not, it means that the blowing hose 2 is normal and can continue to be used. After 1-2 minutes, the third water clamp 28 is opened, the disinfectant in the lower chamber 420 flows out through the liquid outlet pipe 26 and the flow guide hose 27, and the doctor lifts the blowing hose 2 upward to make the disinfectant in the blowing hose 2 exhaust. During the above process, the partition plate 24 can prevent liquid from entering the upper chamber 410, thereby protecting the air pressure sensor 5 in the upper chamber 410.

[0040] Then, the first water clamp 15 is closed, the second water clamp 16 is opened, and the air heating box starts to work. The motor 22 in the box body 19 drives the fan blade 21 to rotate, forming an air flow towards the air outlet pipe 23. The external air enters the box body 19 through the air inlet 191, and the temperature of the air in the box body 19 rises under the heating of the electric heating wire 20, forming hot air. The hot air flows into the blowing hose 2 through the air outlet pipe 23 and the third pipe 123, and dries the inner wall of the blowing hose 2. Specifically, the liquid on the inner wall of the blowing hose 2 and the liquid on the inner wall of the lower chamber 420 volatilize after absorbing heat, and flow out through the liquid outlet pipe 26 and the flow guide hose 27 with the hot air. Finally, after the blowing hose 2 is dried, the air heating box stops working, the second water clamp 16 and the third water clamp 28 are closed, and the electric push rod 25 is started again. The electric push rod 25 drives the partition plate 24 to slide downward and reset, and the outlet end of the air inlet pipe 10 is located in the upper chamber 410 again. During the above process, the partition plate 4 can prevent water vapor from entering the upper chamber 410, thereby protecting the air pressure sensor 5 in the upper chamber 410.

[0041] Finally, the doctor separates the Y-shaped pipe 12 from the blowing hose 2, and screws a new mouthpiece 1 to the blowing hose 2 for the next patient to blow.

[0042] In summary, the embodiment can not only realize individual difference detection and improve the success rate of foaming test, but also sterilize and dry the blowing hose 2 to avoid cross infection. In addition, whether the blowing hose 2 leaks can be judged during the sterilization process, so that the damaged blowing hose 2 can be replaced in time to avoid the use of the damaged blowing hose 2.

[0043] Embodiment two

[0044] The difference between the embodiment and the embodiment one is that, as shown in Figure 4 the pulling member in the embodiment is different from the pulling member in the embodiment one. In the embodiment, the pulling member is an electromagnet 30, the upper surface of the partition plate 24 is welded with an iron block 31, and the inner wall of the lower chamber 420 is welded with a limiting block 32. Initially, the bottom surface of the partition plate 24 abuts against the limiting block 32, and the outlet end of the air inlet pipe 10 is located in the upper chamber 410.

[0045] In the embodiment, before the sterilization and drying work of the blowing hose 2, the electromagnet 30 is powered to generate magnetism, the electromagnet 30 magnetically attracts the iron block 31, the iron block 31 drives the partition plate 24 to slide upward, the volume of the upper chamber 410 decreases, and the volume of the lower chamber 420 increases. At this time, the outlet end of the air inlet pipe 10 is located in the lower chamber 420. After the sterilization and drying work of the blowing hose 2 is completed, the electromagnet 30 is powered off to lose magnetism, and no longer magnetically attracts the iron block 31. The partition plate 24 and the iron block 31 slide downward and reset under the action of their own gravity, and the partition plate 24 again abuts against the limiting block 32. At this time, the outlet end of the air inlet pipe 10 is located in the lower chamber 420.

[0046] Embodiment three

[0047] The difference between the embodiment and the embodiment two is that, as shown in Figure 5 the upper surface of the partition plate 24 is welded with a magnet 33, and the top end of the magnet 33 has a magnetic pole opposite to the bottom end of the electromagnet 30 when the electromagnet 30 is powered. In this way, in the embodiment, when the electromagnet 30 is not powered, the magnet 33 magnetically attracts the iron core in the electromagnet 30 to overcome part of the weight of the magnet 33 and the partition plate 24, but is not enough to make the partition plate 24 slide upward. Therefore, at this time, the bottom surface of the partition plate 24 still abuts against the limiting block 32. When the electromagnet 30 is powered, the electromagnet 30 generates magnetism, the electromagnet 30 and the magnet 33 are magnetically attracted to each other, so that the magnet 33 and the partition plate 24 overcome the weight and slide upward, so that the outlet end of the air inlet pipe 10 is located in the lower chamber 420 to perform the sterilization and drying work of the blowing hose 2.

[0048] The above is only an embodiment of the present application, the present application is not limited to this embodiment The field to which the embodiment relates, common knowledge of specific structures and characteristics in the scheme, etc. is not described in detail here The ordinary skilled person in the art knows all the ordinary technical knowledge in the field to which the present application belongs before the filing date or the priority date, can know all the prior art in the field, and has the ability to apply conventional experimental means before that date The ordinary skilled person in the art can perfect and implement the present scheme under the guidance of the present application, in combination with their own ability Some typical known structures or known methods should not be an obstacle to the implementation of the present application by the ordinary skilled person in the art It should be noted that, for those skilled in the art, without departing from the structure of the present application, a number of modifications and improvements can also be made, which should also be considered as the protection scope of the present application, which will not affect the effect and practicality of the present application The scope of protection claimed in the present application should be subject to the content of its claims The specific implementation in the specification can be used to explain the content of the claims

Claims

1. A blow detection device comprising a blow assembly and a gas pressure detection assembly, the blow assembly comprising a blow nozzle and a blow hose, characterized in that: The air pressure detection assembly comprises a pressure measuring chamber, an air pressure sensor, an air pressure display screen, a controller, an alarm and an upper computer, the air pressure sensor is located in the pressure measuring chamber, the air pressure sensor, the air pressure display screen and the alarm are electrically connected with the controller, and the controller is electrically connected with the upper computer; one end of the blowing hose is detachably connected with the blowing nozzle, the other end of the blowing hose is communicated with the pressure measuring chamber, the pressure measuring chamber is communicated with an air inlet pipe, and the blowing hose is detachably connected with the air inlet pipe; the device further comprises a disinfection assembly, the disinfection assembly comprises a Y-shaped pipe, a disinfectant bottle, a disinfectant pump and an air heating box, the Y-shaped pipe comprises a first pipe, a second pipe and a third pipe, the first pipe can be detachably connected with one end of the blowing hose away from the pressure measuring chamber, a first water stop clamp is arranged on the second pipe, a second water stop clamp is arranged on the third pipe, the inlet of the disinfectant pump is connected with a liquid inlet pipe, the outlet of the disinfectant pump is connected with a liquid outlet pipe, the liquid inlet pipe extends into the disinfectant bottle, and the liquid outlet pipe is connected with the second pipe; the air heating box comprises a box body, an air inlet is formed in the side wall of the box body, an electric heating wire, a fan blade and a motor for driving the fan blade to rotate are arranged in the box body, the box body is communicated with an air outlet pipe, and the air outlet pipe is connected with the third pipe; a partition plate is vertically and slidably connected in the pressure measuring chamber, the partition plate divides the internal space of the pressure measuring chamber into an upper chamber and a lower chamber, a pulling piece for pulling the partition plate to vertically slide is arranged in the upper chamber, and the air pressure sensor is located in the upper chamber; the bottom of the lower chamber is communicated with a liquid discharge pipe, the bottom end of the liquid discharge pipe is threadedly connected with a flow guide hose, and the flow guide hose is provided with a third water stop clamp; in use, the patient first performs trial blowing, observes the transcranial Doppler ultrasound image displayed on the transcranial Doppler ultrasound image display screen and the air pressure value displayed on the air pressure display screen, and records the air pressure value A displayed on the air pressure display screen when the transcranial Doppler ultrasound image appears available value, that is, when the transcranial Doppler ultrasound image appears to drop; then, the patient starts formal detection, adjusts the blowing strength according to whether the alarm emits an acoustic signal during blowing; after blowing is completed, the used blowing nozzle is taken off from the blowing hose, the first pipe of the Y-shaped pipe is threadedly connected with the blowing hose, the pulling piece is started, the partition plate slides upward, the outlet end of the air inlet pipe is located in the lower chamber, the first water stop clamp is opened, the second water stop clamp is ensured to be in a closed state, the disinfectant pump is started, the disinfectant flows into the blowing hose through the liquid inlet pipe, the liquid outlet pipe and the second pipe under the action of the disinfectant pump, and then flows into the lower chamber through the blowing hose; after the blowing hose is filled with disinfectant, the disinfectant pump stops working, and the blowing hose is placed for 1-2 minutes; whether the disinfectant leaks out of the outer surface of the blowing hose is observed, the third water stop clamp is opened after 1-2 minutes, the disinfectant in the lower chamber flows out through the liquid discharge pipe and the flow guide hose, and the disinfectant in the blowing hose is discharged by lifting the blowing hose.Then, the first water stop clamp is closed, the second water stop clamp is opened, the air heating box works, the air blowing hose and the lower chamber are dried, after the drying is completed, the partition plate is reset downwards, the outlet end of the air inlet pipe is located in the upper chamber again, the Y-shaped pipe is separated from the air blowing hose, and a new air blowing nozzle is screwed on the air blowing hose.

2. The sniffer device according to claim 1, characterized in that: The pulling member is an electromagnet, the upper surface of the partition plate is fixedly connected with an iron block, and a limiting block is arranged on the inner wall of the lower chamber.

3. The sniffer device of claim 1, wherein: The pulling member is an electric push rod, and the output end of the electric push rod is fixedly connected with the partition plate.

4. The sniffer device of claim 1, wherein: The alarm is a buzzer.

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