A nasal hemostasis device

Abstract

The present invention provides a nasal hemostasis device, which belongs to the technical field of medical devices, and includes a supporting body, a front airbag, a rear airbag, and a gas control valve. The gas passage of the supporting body includes a first gas passage and a second gas passage. The first gas passage is used to inflate the front airbag to make it expand, and the second gas passage is used to inflate the rear airbag to make it expand. One end of the gas control valve is connected to an external gas source, and the other end is connected to the first gas passage and the second gas passage. The external gas source is controlled to select the first gas passage or the second gas passage for inflation. The device has the technical effect of quickly judging the location of nasal bleeding points and timely and effectively controlling nasal bleeding.

Description

Technical Field

[0001] The invention relates to a nasal hemostasis device, which is used for hemostasis after nasal blood vessel bleeding and belongs to the technical field of medical devices. Background Art

[0002] Nosebleed is one of the common diseases in outpatient clinics. It is more common in spring and autumn. In mild cases, there is only blood in the mucus, while in severe cases, it can cause hemorrhagic shock. The site of the disease can be anywhere in the nasal cavity. In adolescents and children, it is mostly the bleeding area in the front of the nasal cavity, namely the Li area, while in middle-aged and elderly people, it is mainly concentrated in the back of the nasal cavity, mostly the nasal-nasopharyngeal venous plexus. The focus of nosebleed diagnosis is to find out the cause and the location of the bleeding point. The cause of nosebleed is more complicated and can be roughly divided into two categories, namely local factors and systemic factors. Local factors include: trauma, tumors of the nasal cavity, paranasal sinuses, and nasopharynx, foreign bodies in the nasal cavity, barotraumatic sinusitis, etc.; systemic factors include: acute febrile infectious diseases, heart and circulatory system diseases, hemorrhagic diseases, liver and kidney diseases, and rheumatic fever, etc. Different causes of nosebleeds can lead to different locations of bleeding points and different amounts of bleeding. For example, severe head and facial trauma that injures the maxillary artery, anterior and posterior ethmoid arteries, and sphenopalatine artery will cause heavy and severe bleeding, often leading to fatal nosebleeds. Arterial bleeding caused by hypertension, arteriosclerosis, hypertensive nephritis, eclampsia and other diseases often results in bleeding in the middle and posterior segments of the nasal cavity or the top of the nasal cavity. The bleeding is bright red, fluctuating, and can stop suddenly. Clinically, when a patient suddenly has a large amount of nose bleeding, there is often no time to analyze the cause, and the only treatment is symptomatic treatment to stop the bleeding first to avoid serious consequences caused by large amounts of bleeding.

[0003] In the prior art, medical staff first use an anterior rhinoscope to observe whether there are bleeding points in the nasal cavity and the front of the nasal septum. If the anterior rhinoscope cannot find the bleeding point, they use a nasal endoscope to find the bleeding point in the back of the nasal cavity, enter the nasopharynx and the posterior nasal cavity through the middle nasal meatus, observe the source of blood flow, find the specific location of the bleeding point, and finally use vaseline gauze or hemostatic balloon packing. However, in reality, finding the bleeding point is very difficult and time-consuming. If the patient continues to bleed heavily during the search time, it is likely to cause hemorrhagic shock to the patient and serious panic to the patient's family members.

[0004] Therefore, researchers in this field are in urgent need of developing a nasal hemostasis device that can quickly determine the location of nasal bleeding points, promptly and effectively control nasal bleeding, and allow patients to wear a comfortable nasal hemostasis device during treatment. Summary of the invention

[0005] The present invention provides a nasal hemostasis device which can quickly determine the location of nasal bleeding points, timely and effectively control nasal bleeding, and conform to the internal angle of the patient's nasal cavity.

[0006] The present invention provides a nasal hemostasis device, comprising: a supporting body and an air bag, wherein the supporting body is provided with a gas passage required for gas to pass through when the air bag is expanded, and the gas passage at least comprises a first gas passage and a second gas passage; the air bag at least comprises a front air bag and a rear air bag, wherein the rear air bag is located at the lower part of the front air bag, and when not inflated, the air bag is attached to the outer surface of the supporting body, the first gas passage is used to inflate the front air bag to make it expand, and the cavity formed after the expansion is the front air bag cavity, the second gas passage is used to inflate the rear air bag to make it expand, and the cavity formed after the expansion is the rear air bag cavity, the gas passage of the supporting body is connected to a gas control valve, one end of the gas control valve is connected to an external gas source, and the other end is connected to the first gas passage and the second gas passage, so as to indicate and control the external gas source to inflate the first gas passage or the second gas passage.

[0007] Preferably, the gas passage is located inside the support body, and the gas passage includes a first gas passage and a second gas passage. The airbag includes a front airbag and a rear airbag, and the front airbag is adjacent to the top end of the support body.

[0008] Preferably, the support body is in the shape of an elongated tube, formed by a tube wall, the hollow of the tube wall is a nasal ventilation cavity, the gas passage is buried inside the tube wall, one end of the gas passage is connected to the airbag, and the other end extends to the end of the support body to connect to an external air source.

[0009] Preferably, a connecting bag is provided between the front airbag and the rear airbag, one end of the connecting bag is fixed on the front airbag, and the other end is fixed on the rear airbag. The cavity formed by the connecting bag is a connecting cavity. The gas passage also includes a third gas passage. The third gas passage is used to inflate the interior of the connecting cavity to expand the connecting bag.

[0010] Preferably, the gas control valve is connected to the first gas passage, the second gas passage, and the third gas passage, and instructs and controls the external gas source to inflate any one of the first gas passage, the second gas passage, and the third gas passage.

[0011] Preferably, the gas control valve comprises an upper plate, a lower plate and a fixed plate, the upper plate is provided with a ventilation channel and a pointer, the fixed plate is provided with marks indicating the first gas passage, the second gas passage and the third gas passage, the upper plate is displaced relative to the lower plate, the pointer points to any mark of the first gas passage, the second gas passage and the third gas passage, and the external gas source is connected to the gas passage indicated by the mark through the ventilation channel of the upper plate. Of course, when the gas passage is provided with only the first gas passage and the second gas passage, the marks of the first gas passage and the second gas passage are also provided accordingly, and the pointer points to one of the two.

[0012] Preferably, the gas control valve includes a valve body and a valve core, the valve body is provided with a valve cavity, and a first gas cavity and a second gas cavity connected to the valve cavity, the first gas cavity is provided with a vent, and the vent is connected to the gas passage; the valve core is sealed with the valve cavity, the valve core includes a main body and a handle, the main body is provided with a gas channel and a blocking surface, the handle is rotated to displace the main body in the valve cavity, the gas channel connects the vent and the second gas cavity, the blocking surface blocks the vent from being connected to the second gas cavity, and the second gas cavity is connected to an external gas source.

[0013] Preferably, a steering portion is provided on the supporting body between the front airbag and the rear airbag, and the steering portion is curved so that the front airbag and the rear airbag are bent to form an angle suitable for the human nasal cavity.

[0014] Preferably, the turning portion is a section of a corrugated tube on the supporting body. When the corrugated tube is bent, one part is squeezed and shortened, while the opposite side is stretched and lengthened.

[0015] Preferably, a pressure relief port is provided on the gas passage of the support body, and a pressure relief valve is sleeved on the outer surface of the support body. The pressure relief valve seals the pressure relief port. When the pressure in the airbag exceeds the safety pressure relief threshold, the pressure relief valve releases the seal of the pressure relief port to relieve pressure.

[0016] Preferably, it also includes an electromagnetic pressure relief valve, which is connected to the gas passage. When the pressure monitoring component monitors that the internal air pressure of the front airbag chamber and / or the rear airbag chamber exceeds the safety pressure relief threshold, the electromagnetic pressure relief valve opens to relieve the pressure in the front airbag chamber and / or the rear airbag chamber.

[0017] Preferably, it also includes a pressure monitoring component, which is used to monitor the cavity pressure of the front airbag cavity and / or the rear airbag cavity.

[0018] Preferably, a cryogenic liquid bag is further provided inside the front airbag and the rear airbag, and the cryogenic liquid is filled into the cryogenic liquid bag through the liquid bag pipeline. After the cryogenic liquid bag is filled and expanded, the outer surface of the cryogenic liquid bag is respectively in contact with the inner surface of the front airbag and the inner surface of the rear airbag.

[0019] The nasal hemostasis device provided by the present invention has the following technical effects:

[0020] First, by inflating the front and rear air bags separately, the hemostasis situation can be observed, the location of the nasal bleeding point can be assisted in determining, and nasal bleeding can be accurately and effectively controlled. This not only avoids the pressure of the air bags on the nasal mucosa in the non-bleeding position, but also facilitates the doctor's accurate treatment of the bleeding point in the later stage.

[0021] Second, the present invention can control the connection between the external gas source and the gas passage through the gas control valve according to the patient's condition, so as to inflate the front airbag and the rear airbag respectively, which makes the operation more convenient and quick.

[0022] Thirdly, the present invention adopts a method of supporting the main body to turn so that the device can conform to the human nasal cavity and reduce the pain of the patient during the hemostasis process.

[0023] Fourth, the use of low-temperature liquid sacs can enhance the hemostatic effect and has the technical effect of relieving the patient's pain. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic cross-sectional view of the structure of the first embodiment of the nasal hemostasis device of the present invention;

[0025] Figure 2 It is a schematic diagram of the cross-section structure of the low-temperature liquid bag of the first embodiment of the nasal hemostasis device of the present invention;

[0026] Figure 3 It is a schematic diagram of the cross-sectional structure of the gas control valve of the first embodiment of the nasal hemostasis device of the present invention;

[0027] Figure 4 It is a schematic diagram of the cross-sectional structure of the pressure relief valve of the first embodiment of the nasal hemostasis device of the present invention;

[0028] Figure 5 It is a schematic diagram of the cross-sectional structure of the electromagnetic pressure relief valve of the first embodiment of the nasal hemostasis device of the present invention;

[0029] Figure 6 The sectional structure diagram of the second embodiment of the nasal hemostasis device of the present invention is shown in FIG. Figure 1 ;

[0030] Figure 7 The sectional structure diagram of the second embodiment of the nasal hemostasis device of the present invention is shown in FIG. Figure 2 ;

[0031] Figure 8 The sectional structure diagram of the second embodiment of the nasal hemostasis device of the present invention is shown in FIG. Figure 3 ;

[0032] Description of reference numerals:

[0033] 1. Support the main body;

[0034] 10. Nasal ventilation cavity;

[0035] 11. Gas passage;

[0036] 111. First gas passage;

[0037] 111a. The first gas path inlet;

[0038] 112. Second gas passage;

[0039] 112a. The second gas path inlet;

[0040] 113. The third gas passage;

[0041] 113a. The third gas line inlet;

[0042] 12. Steering part;

[0043] 121. Bellows;

[0044] 13. Tube wall;

[0045] 14. Pressure relief port;

[0046] 2. Airbag;

[0047] 21.Front airbag;

[0048] 210. Front airbag cavity;

[0049] 22. Rear airbag;

[0050] 220. Rear airbag cavity;

[0051] 23. Connecting capsule;

[0052] 230. Connecting cavity;

[0053] 3. Gas control valve;

[0054] 31. Upper board;

[0055] 311. Ventilation channel;

[0056] 312. Pointer;

[0057] 32. Lower plate;

[0058] 33. Fixed plate;

[0059] 331. Identification;

[0060] 34. Connecting pipe;

[0061] 35. Block valve;

[0062] 36. Valve body;

[0063] 361. Valve chamber;

[0064] 362. First gas chamber;

[0065] 3621. Ventilation port;

[0066] 363. Second gas chamber;

[0067] 37. Valve core;

[0068] 371. Main part;

[0069] 3711. Gas channel;

[0070] 3711a. Third gas channel;

[0071] 3711b. First gas channel;

[0072] 3711c. Second gas channel;

[0073] 3712. Blocking surface;

[0074] 372. Handle;

[0075] 4. External air source;

[0076] 41. Manually inflated airbag;

[0077] 411. Inflatable sac cavity;

[0078] 42. Electric air pump;

[0079] 5. One-way valve;

[0080] 6. Pressure relief valve;

[0081] 7. Pressure monitoring components;

[0082] 8. Solenoid pressure relief valve;

[0083] 9. Cryogenic capsule;

[0084] 90. Cyst cavity. DETAILED DESCRIPTION

[0085] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with the present disclosure. Instead, they are merely examples of devices and methods consistent with some aspects of the present disclosure as detailed in the claims.

[0086] The present invention provides a nasal hemostasis device, which is used for hemostasis of nasal bleeding points and determination of bleeding locations. The first embodiment of the nasal hemostasis device provided by the present invention is introduced below.

[0087] like Figure 1As shown, in the first embodiment of the nasal hemostasis device provided by the present invention, a nasal hemostasis device includes a support body 1 and an air bag 2. The support body 1 is slender and made of medical-grade flexible material. One end of the support body 1 provided with the air bag 2 is arranged inside the human nasal cavity, and the other end is arranged outside the human nasal cavity. The support body 1 is formed by enclosing a tube wall 13. The inner hollow of the tube wall 13 is a nasal ventilation cavity 10. When the nasal cavity is in a hemostasis state, the nasal ventilation cavity 10 is used to ventilate the human nose or discharge nasal coagulation. The air bag 2 is slender and made of conformable medical silicone material or rubber material. Before the air bag 2 is not inflated, it is attached to one end of the support body 1 placed in the nasal cavity.

[0088] like Figure 1 , Figure 2 As shown, in order to accurately find the location of the nasal bleeding point and stop bleeding quickly, the airbag 2 is divided into a front airbag 21 and a rear airbag 22, and a gas passage 11 is buried inside the tube wall 13. The gas passage 11 includes a first gas passage 111 and a second gas passage 112. The two ends of the front airbag 21 are fixed to the outer surface of the support body 1. When not inflated, it is attached to the outer surface of the support body 1. The external air source 4 inflates the front airbag 21 through the first gas passage 111, and enters the front airbag cavity 210 from the first gas passage inlet 111a. After inflation, the outer surface of the front airbag 2 is pressed against the deep part of the nasal cavity. If the front airbag 21 is inflated, the hemostasis is completed. If there is bleeding, it means that the bleeding point is in the deep part of the nasal cavity where the front airbag 21 is located. If the bleeding does not stop, continue to use the rear airbag 22 to stop the bleeding. The rear airbag 22 is located at the lower part of the front airbag 21. Both ends of the rear airbag 22 are fixed to the outer surface of the support body 1. When it is not inflated, it is attached to the outer surface of the support body 1. The external air source 4 inflates the rear airbag 22 through the second gas passage 112, and enters the rear airbag cavity 220 from the second air passage inlet 112a. The outer surface of the inflated rear airbag 22 is pressed on the bleeding position at the front end of the nasal cavity. If the rear airbag 22 completes hemostasis after inflation, it means that the bleeding point is in a shallower position of the nasal cavity where the rear airbag 22 is located.

[0089] Continue to refer Figure 1 , Figure 2As shown, in order to ensure that the nasal hemostasis device is in conformity with the angle inside the human nasal cavity and is more suitable for the bleeding position of the human nasal cavity to stop bleeding, a steering part 12 is provided on the support body 1 between the front airbag 21 and the rear airbag 22, specifically a section of a corrugated tube 121 provided on the support body 1, located between the front airbag 21 and the rear airbag 22. When the corrugated tube 121 is bent, a part is squeezed and shortened, and the opposite side is stretched and lengthened, so that the support body 1 can be bent, and the front airbag 21 and the rear airbag 22 are bent into an angle suitable for the human nasal cavity, so that the airbag 2 is more suitable for the bleeding position of the human nasal cavity, and the hemostasis effect is enhanced. The corrugated tube 121 is made of medical grade stainless steel or medical grade plastic. In order to ensure the hemostatic effect of the gap between the front airbag 21 and the rear airbag 22, a connecting bag 23 is arranged between the two. One end of the connecting bag 23 is fixed on the front airbag 21, and the other end is fixed on the rear airbag 22, and the entirety covers the steering part 12. The cavity formed by the connecting bag 23 is the connecting cavity 230. When the front airbag 21 and the rear airbag 22 are filled, the connecting bag 23 will expand and fill due to the pulling effect of the front airbag 21 and the rear airbag 22, and has a hemostatic effect on the bleeding point, and can cover the steering part 12 to prevent it from contacting the blood and causing contamination and damage. When the nasal bleeding position is located in the gap between the front airbag 2 and the rear airbag 3, the connecting bag 23 is required to provide pressure to press the bleeding point for hemostasis. The third gas passage 113 of the gas passage 11 buried inside the tube wall 13 is used to inflate the connecting bag 23, and the third gas passage inlet 113a enters the connecting cavity 230 of the connecting bag 23. After the connecting bag 23 is filled, it is tightly attached to the inner wall of the human nasal cavity to control bleeding.

[0090] The above-mentioned airbag 2 is divided into a front airbag 21, a rear airbag 22 and a connecting airbag 23. Each airbag 2 is controlled by the first gas passage 111, the second gas passage 112 and the third gas passage 113 of the gas passage 11 respectively. The inflation of any airbag 2 can be controlled at will to accurately determine the position of the nasal bleeding point and quickly stop the bleeding.

[0091] refer to Figure 4As shown, a pressure relief port 14 is provided on the gas passage 11 of the support body 1. The pressure relief port 14 is located at the lower part of the support body 1 and is connected to the front airbag cavity 210, the rear airbag cavity 220 and the connecting cavity 230 through the first gas passage 111, the second gas passage 112 and the third gas passage 113. The pressure relief port 14 is opened on the first gas passage 111, the second gas passage 112 and the third gas passage 113. A pressure relief valve 6 is sleeved on the outer surface of the support body 1. The pressure relief valve 6 is made of medical rubber. The sealing sleeve of the pressure relief valve 6 is arranged outside the pressure relief port 14. When the internal pressure of the front airbag cavity 210, the rear airbag cavity 220 and the connecting cavity 230 is at the safety threshold, the pressure relief port 14 is kept airtight. When the pressure of one of the front airbag cavity 210, the rear airbag cavity 220 and the connecting cavity 230 exceeds the safety pressure relief threshold, the pressure relief valve 6 at the pressure relief port 14 connected to the cavity is opened to relieve the pressure of the cavity. Of course, the front airbag cavity 210, the rear airbag cavity 220, and the connecting cavity 230 can also be depressurized simultaneously. The safety pressure relief threshold is adjusted according to the patient's condition, and it is recommended to be no more than 4Kpa to avoid damage to the nasal cavity caused by excessive compression.

[0092] Continue to refer Figure 2 As shown, a cryogenic liquid sac 9 is further provided inside the front airbag 21 and the rear airbag 22. A cryogenic liquid, such as ice water, cryogenic gel, etc., is filled into the sac cavity 90 of the cryogenic liquid sac 9 through a sac pipeline. When the cryogenic liquid sac 9 is filled and expanded, the outer surface of the cryogenic liquid sac 9 is respectively attached to the inner surface of the front airbag 21 and the inner surface of the rear airbag 22, so as to transfer the low temperature to the mucosa in the nasal cavity and assist the nasal blood vessels to stop bleeding quickly.

[0093] Continue to refer Figure 1 As shown, a pressure monitoring component 7 can be set inside the front airbag cavity 210, the rear airbag cavity 220, and the connecting cavity 230. The pressure monitoring component 7 is used to monitor the gas pressure inside each cavity. When the safety pressure relief threshold is exceeded, active pressure relief can be taken to avoid damage to the inner wall of the nasal cavity caused by excessive compression. The outer surfaces of the front airbag 21, the rear airbag 22, and the connecting capsule 23 are provided with pits, and thrombin is provided inside the pits. The thrombin is a sterile lyophilized product of thrombin obtained by activating prothrombin. Of course, a hemostatic gel can also be set on the outer surfaces of the front airbag 21, the rear airbag 22, and the connecting capsule 23.

[0094] refer to Figure 3As shown, the external gas source 4 is a manual airbag 41 or an electric air pump 42, wherein the manual airbag 41 has a compressible airbag cavity 411, and a gas one-way valve 5 is provided at the tail. The manual airbag 41 is pressed to inject external gas into the gas passage 11 of the support body 1. A connecting pipe 34 is provided at the tail of the support body 1, one end of which is sealed and connected to the gas passage 11 of the support body 1, and the other end is sealed and connected to the gas control valve 3, and the gas control valve 3 includes an upper plate 31, a lower plate 32 and a fixed plate 33, the upper plate 31 and the lower plate 32 are both disc-shaped, and the upper plate 31 and the lower plate 32 are both made of medical plastic material, the upper plate 31 is located in the limiting groove of the lower plate 32, the fixed plate 33 is an annular disc-shaped, and the fixed plate 33 is made of medical plastic material, and the fixed plate 33 is engaged with the lower plate 32, and the fixed plate 33 limits the upper plate 31 as a whole on the lower plate 32. The upper plate 31 is provided with a ventilation channel 311 and a pointer 312. The pointer 312 is driven to drive the upper plate 31 to rotate relative to the lower plate 32. When the pointer 312 points to the direction of the first gas passage 111, one end of the ventilation channel 311 is sealed and connected to the first gas passage 111, and the other end is sealed and connected to the manual inflatable bag 41. The front airbag 21 is inflated by manually squeezing the manual inflatable bag 41. Similarly, when the pointer 312 points to the direction of the second gas passage 112, one end of the ventilation channel 311 is sealed and connected to the second gas passage 112, and the other end is sealed and connected to the manual inflatable bag 41. The rear airbag 22 is inflated by manually squeezing the manual inflatable bag 41; when the pointer 312 points to the direction of the third gas passage 113, one end of the ventilation channel 311 is sealed and connected to the third gas passage 113, and the other end is sealed and connected to the manual inflatable bag 41. The connecting bag 23 is inflated by manually squeezing the manual inflatable bag 41. A blocking valve 35 is provided at the rear end of the gas passage 11. When inflation is completed, the blocking valve 35 blocks the gas passage 11 to prevent leakage of gas in the airbag 2 after inflation. A mark 331 is provided on the fixing plate 33. The mark 331 corresponds to the first gas passage 111, the second gas passage 112, and the third gas passage 113, so that the pointer 312 accurately and conveniently points to the corresponding gas passage 11.

[0095] The second embodiment of the nasal hemostasis device provided by the present invention is introduced below.

[0096] refer to Figure 6 , Figure 7 , Figure 8 As shown, the second embodiment of the nasal hemostasis device provided by the present invention has basically the same structure as the first embodiment, and the difference between the two is that:

[0097] The gas control valve 3 includes a valve body 36 and a valve core 37. The valve body 36 is made of medical plastic material and is T-shaped. The valve body 36 includes a valve cavity 361, a first gas cavity 362, and a second gas cavity 363. The first gas cavity 362 is connected to the valve cavity 361, and the opening end of the first gas cavity 362 is sealed and connected to the gas passage 11 of the support body 1. The second gas cavity 363 is connected to the valve cavity 361, and the opening end of the second gas cavity 363 is sealed and connected to the manual inflation bag 41. Marks are also provided on the valve body 36, and the marks correspond to the first gas passage 111, the second gas passage 112, and the third gas passage 113. The valve core 37 is made of medical plastic material, and the valve core 37 includes a main body 371 and a handle 372. The main body 371 is sealed with the valve cavity 361. The main body 371 is provided with a gas channel 3711 connecting the gas passage 11 and the manual airbag 41. The gas channel 3711 is a groove formed by the inward depression of the surface of the main body 371. The gas channel 3711 includes a first gas channel 3711b, a second gas channel 3711c and a third gas channel 3711a. The first gas channel 3711b and the second gas channel 3711c are located on both sides of the third gas channel 3711a. The first gas channel 3711b and the second gas channel 3711c are respectively connected to both ends of the third gas channel 3711a, so that the manual airbag 41 only needs to be connected to the second gas cavity 363 once. By changing the rotational displacement of the handle 372, the front airbag 21, the rear airbag 22 and the connecting bag 23 can be inflated respectively.

[0098] The handle 372 is located outside the valve cavity 361, and the driving handle 372 drives the main body 371 to rotate in the valve cavity 361. When the handle 372 is located at the marked position corresponding to the third gas passage 113, the blocking surface 3712 blocks the connection between the second gas passage 112, the first gas passage 111 and the manual inflation bag 41. By manually squeezing the manual inflation bag 41, the gas in the inflation bag cavity 411 enters the third gas passage 113 from the third gas channel 3711a to inflate the connecting bag 23.

[0099] Continue to refer Figure 7 As shown, the driving handle 372 drives the main body 371 to rotate in the valve chamber 361. When the handle 372 is located at the marked position corresponding to the first gas passage 111, the blocking surface 3712 blocks the connection between the second gas passage 112, the third gas passage 113 and the manual airbag 41. By manually squeezing the manual airbag 41, the gas in the airbag chamber 411 enters the first gas passage 111 from the third gas passage 3711a via the first gas passage 3711b to inflate the front airbag 21.

[0100] Continue to refer Figure 8As shown, the driving handle 372 drives the main body 371 to rotate in the valve chamber 361. When the handle 372 is located at the marked position corresponding to the second gas passage 112, the blocking surface 3712 blocks the connection between the first gas passage 111, the third gas passage 113 and the manual airbag 41. By manually squeezing the manual airbag 41, the gas in the airbag chamber 411 enters the second gas passage 112 from the third gas passage 3711a via the second gas passage 3711c to inflate the rear airbag 22.

Claims

1. A nasal hemostasis device, comprising: A support body (1) and an airbag (2), wherein the support body (1) is provided with a gas passage (11) through which gas needs to pass when inflating the airbag (2), and the gas passage (11) at least comprises a first gas passage (111) and a second gas passage (112); the airbag (2) at least comprises a front airbag (21) and a rear airbag (22), wherein the rear airbag (22) is located at the lower part of the front airbag (21), and when not inflated, the airbag (2) is attached to the outer surface of the support body (1), the first gas passage (111) is used to inflate the front airbag (21) to expand it, and the cavity formed after the expansion is the front airbag cavity (210), and the second gas passage ( 112) is used to inflate the rear airbag (22) to expand it, and the cavity formed after the expansion is the rear airbag cavity (220), characterized in that the gas passage (11) of the support body (1) is connected to a gas control valve (3), one end of the gas control valve (3) is connected to the external gas source (4), and the other end is connected to the first gas passage (111) and the second gas passage (112), indicating and controlling the external gas source (4) to inflate the first gas passage (111) or the second gas passage (112), and a connecting bag (23) is provided between the front airbag (21) and the rear airbag (22), and one end of the connecting bag (23) is fixed on the front airbag (21) , the other end is fixed on the rear airbag (22), the cavity formed by the connecting bag (23) is the connecting cavity (230), the gas passage (11) also includes a third gas passage (113), the interior of the connecting cavity (230) is inflated through the third gas passage (113), so that the connecting bag (23) expands, the support body (1) is in the shape of a slender tube, surrounded by a tube wall (13), the hollow of the tube wall (13) is the nasal ventilation cavity (10), the gas passage (11) is buried in the tube wall (13), one end of the gas passage (11) is connected to the airbag (2), and the other end extends to the end of the support body (1) and is connected to the external gas source (4), the The gas control valve (3) is connected to the first gas passage (111), the second gas passage (112), and the third gas passage (113), and indicates and controls the external gas source (4) to inflate any one of the first gas passage (111), the second gas passage (112), and the third gas passage (113). A pressure relief port (14) is provided on the gas passage (11) of the support body (1), and a pressure relief valve (6) is sleeved on the outer surface of the support body (1). The pressure relief valve (6) seals the pressure relief port (14). When the pressure in the airbag (2) exceeds a safety pressure relief threshold, the pressure relief valve (6) releases the seal on the pressure relief port (14) to relieve pressure.

2. The nasal hemostasis device according to claim 1, characterized in that: The gas passage (11) is located inside the support body (1), and the gas passage (11) includes a first gas passage (111) and a second gas passage (112). The airbag (2) includes a front airbag (21) and a rear airbag (22), and the front airbag (21) is adjacent to the top of the support body (1).

3. The nasal hemostasis device according to claim 1, characterized in that: The gas control valve (3) comprises an upper plate (31), a lower plate (32) and a fixed plate (33); the upper plate (31) is provided with a ventilation channel (311) and a pointer (312); the fixed plate (33) is provided with an identification (331) indicating a first gas passage (111), a second gas passage (112) and a third gas passage (113); the upper plate (31) is displaced relative to the lower plate (32); the pointer (312) points to any identification (331) among the first gas passage (111), the second gas passage (112) and the third gas passage (113); and the external gas source (4) is connected to the gas passage (11) indicated by the identification (331) through the ventilation channel (311) of the upper plate (31).

4. The nasal hemostasis device according to claim 1, characterized in that: The gas control valve (3) comprises a valve body (36) and a valve core (37); the valve body (36) is provided with a valve cavity (361), and a first gas cavity (362) and a second gas cavity (363) which are connected to the valve cavity (361); the first gas cavity (362) is provided with a vent (3621), and the vent (3621) is connected to the gas passage (11); the valve core (37) is in sealing cooperation with the valve cavity (361); the valve core (37) comprises a main body (371) and a hand The handle (372) is provided with a gas passage (3711) and a blocking surface (3712) on the main body (371). The handle (372) is rotated to displace the main body (371) in the valve cavity (361). The gas passage (3711) connects the air vent (3621) with the second gas cavity (363). The blocking surface (3712) blocks the connection between the air vent (3621) and the second gas cavity (363). The second gas cavity (363) is connected with an external gas source (4).

5. The nasal hemostasis device according to claim 1, characterized in that: A steering portion (12) is provided on the support body (1) between the front airbag (21) and the rear airbag (22). The steering portion (12) is curved so that the front airbag (21) and the rear airbag (22) are bent to form an angle suitable for the human nasal cavity.

6. The nasal hemostasis device according to claim 5, characterized in that: The turning portion (12) is a section of a corrugated tube (121) on the supporting body (1); when the corrugated tube (121) is bent, one part is squeezed and shortened, while the opposite side is stretched and lengthened.

7. The nasal hemostasis device according to claim 1, characterized in that: A cryogenic liquid bag (9) is also provided inside the front air bag (21) and the rear air bag (22). A cryogenic liquid is filled into the cryogenic liquid bag (9) through a liquid bag pipeline. After the cryogenic liquid bag (9) is filled and expanded, the outer surface of the cryogenic liquid bag (9) is respectively in contact with the inner surface of the front air bag (21) and the inner surface of the rear air bag (22).

8. The nasal hemostasis device according to claim 1, characterized in that: It also includes a pressure monitoring component (7), which is used to monitor the cavity pressure of the front airbag cavity (210) and / or the rear airbag cavity (220).

9. The nasal hemostasis device according to claim 8, characterized in that: It also includes an electromagnetic pressure relief valve (8), which is connected to the gas passage (11). When the pressure monitoring component (7) monitors that the internal air pressure of the front airbag chamber (210) and / or the rear airbag chamber (220) exceeds a safety pressure relief threshold, the electromagnetic pressure relief valve (8) opens to relieve the pressure of the front airbag chamber (210) and / or the rear airbag chamber (220).

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