A multifunctional artificial airway for pre-hospital use

Abstract

This invention provides a multifunctional artificial airway for pre-hospital use, including a mask assembly. A silicone sleeve is elastically snapped onto the rear end of the mask tube connected to an oxygen mask. After the silicone sleeve is connected to the inner connecting plate, the airway connecting plate and the airway can extend into the patient's pharynx, achieving the function of opening the airway and preventing airway obstruction. It also connects to an external oxygen source through the mask tube for oxygen supply. Furthermore, an inner telescopic airway component is elastically slidably connected inside the airway assembly. If the length of the airway assembly alone is insufficient to open the patient's airway, the inner airway can be pulled outwards, causing the inner telescopic airway component to extend outwards. The inner telescopic airway component, in conjunction with the adjustment of the airway assembly, works together to open the airway. To further improve the close fit between the rear cushion and the patient's face, this invention also includes an adjustable upper baffle component relative to the oxygen mask position.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and in particular to a multifunctional artificial airway for pre-hospital use. Background Technology

[0002] Oropharyngeal airways are primarily used for patients unable to breathe independently, especially for the airway management of critically ill patients. They are simple, effective, and economical airway assist devices. Connected to an oxygen mask, the airway is inserted into the patient's pharynx to provide oxygen.

[0003] Most existing ventilation tubes are fixed-length silicone tubes that connect to the oxygen mask's supply line. These soft oropharyngeal ventilation tubes are prone to displacement in some patients, and have drawbacks such as difficulty in securing them and inability to provide positive pressure ventilation. Furthermore, for patients with poor spontaneous breathing, the limited length of the ventilation tube prevents adjustment of its insertion position into the oropharynx according to the patient's specific situation, potentially leading to airway failure. Summary of the Invention

[0004] The purpose of this invention is to provide a multifunctional artificial airway for pre-hospital use. The airway assembly can be detached and reassembled with the inner connecting plate using a silicone sleeve, and an inner telescopic airway component is hidden and slidably connected within the airway assembly, making it suitable for different usage environments.

[0005] The objective of this invention is achieved through the following technical solution: a multifunctional artificial airway for pre-hospital use, comprising a mask assembly, an upper baffle assembly, an airway assembly, and an inner telescopic airway component. The mask assembly comprises an oxygen mask and a mask tube, the upper baffle assembly comprises an upper baffle, the airway assembly comprises a connecting silicone sleeve, and the inner telescopic airway component comprises an inner airway and a slider side tooth.

[0006] The rear end of the mask tube is sealed and snapped into the front end of the oxygen mask body. The air inlet end of the lower side of the mask tube is connected to an anaerobic breathing tube. A silicone sheet is provided on the lower side of the anaerobic breathing tube. The rear end of the mask tube is also connected to an internal connecting plate.

[0007] The upper front end of the oxygen mask body is connected to an upper threaded tube. An adjusting bolt is rotatably connected to the front side of the upper baffle, and the adjusting bolt is threaded into the upper threaded tube. The front end of the connecting silicone sleeve is sealed and fixed in the inner connecting bracket. The rear end of the connecting silicone sleeve is connected to an airway. Side grooves are symmetrically opened at both ends of the airway. The bottom of the two sets of side grooves is provided with an inner arc-shaped sliding groove. An inner locking tooth groove is opened on the outer arc surface of the inner arc-shaped sliding groove. A middle connecting slider is fixedly connected to one end between the two sets of inner airways. The side teeth of the slider are fixedly connected to the outer arc surface of the middle connecting slider. The inner airway is slidably connected in the side groove, and the middle connecting slider is slidably connected in the inner arc-shaped sliding groove.

[0008] The process of using the technical solution of the present invention is as follows:

[0009] This invention is suitable for use by both patients with spontaneous breathing and patients without spontaneous breathing;

[0010] When the patient's symptoms are mild and they can breathe on their own, there is no need to insert the connecting silicone sleeve into the internal connecting card slot. The oxygen mask can be put directly on the patient's face and the lower end of the mask tube can be connected to the external oxygen source to achieve oxygen supply.

[0011] When a patient has severe symptoms, good spontaneous breathing function, but an obstructed airway, an airway assembly can be connected to the rear end of the internal connecting card. By inserting the airway assembly into the patient's pharynx, the airway can be opened.

[0012] The specific operation involves inserting the rear end of the airway into the pharyngeal airway from the patient's mouth, allowing the patient's teeth to clench at the front end of the airway. After the mask tube is connected to an external oxygen source, oxygen can enter the patient's airway from the symmetrically opened side slots at both ends of the airway, thus achieving the purpose of oxygen supply.

[0013] Furthermore, when necessary, the extension length of the inner airway within the airway can be adjusted via the inner telescopic airway component to achieve accurate oxygen supply. When no adjustment is required, the inner telescopic airway component is completely hidden within the airway assembly. When it is necessary to open the airway using the extended inner telescopic airway component on top of the airway assembly, the inner airway can be pulled outward, causing the connecting slider to slide in the inner arc-shaped groove. The inner airway is held in the adjusted position by the elastic engagement between the slider's side teeth and the inner locking groove.

[0014] By adopting the above technical solution, the present invention has the following advantages:

[0015] (1) By connecting the inner connecting plate to the rear end of the mask tube, the present invention can realize the engagement and disassembly of the connecting silicone sleeve and the inner connecting plate. When the connecting silicone sleeve is not engaged with the inner connecting plate, the present invention can be used to supply oxygen to the patient under normal conditions. When the patient's airway is blocked, the connecting silicone sleeve can be engaged in the inner connecting plate, and the airway can be extended into the patient's pharynx to open the patient's airway. Thus, based on positive pressure ventilation and oxygen supply, the detachable airway component can be used for both normal patients and patients who cannot breathe independently.

[0016] (2) Furthermore, the present invention also hides an inner telescopic airway component in the airway assembly. By pulling the inner airway outward, the inner airway can extend to the outside of the airway. Thus, the inner telescopic airway component and the airway assembly can be used to adjust the length of the airway.

[0017] (3) The present invention also provides an upper baffle assembly at the front end of the oxygen mask. By rotating the rear end of the adjusting bolt to the front end of the upper baffle and the threaded engagement formed by the adjusting bolt and the upper threaded tube, the front and rear positions of the upper baffle relative to the upper threaded tube, i.e. the oxygen mask, can be adjusted so that the rear side of the upper baffle and the rear soft pad are adjusted to accurately fit the patient's head and face. This can ensure the sealing effect of the rear soft pad and the patient's face and improve the patient's wearing comfort. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 A schematic diagram of the overall structure of a multifunctional artificial airway for pre-hospital use provided by the present invention;

[0020] Figure 2 This is a schematic diagram of the structure of the mask assembly of the present invention;

[0021] Figure 3 This is a first-view structural schematic diagram of the valve body seat portion of the present invention;

[0022] Figure 4 This is a second-view structural schematic diagram of the valve body seat portion of the present invention;

[0023] Figure 5 This is a schematic diagram of the upper baffle assembly of the present invention;

[0024] Figure 6 This is a schematic diagram of the connection between the airway assembly and the internal connecting card of the present invention;

[0025] Figure 7 This is a schematic diagram of the airway connection plate portion of the present invention;

[0026] Figure 8 This is a schematic diagram of the internal telescopic airway component of the present invention;

[0027] Figure 9 This is a schematic diagram of the side teeth of the slider in this invention.

[0028] Reference numerals: 1. Mask assembly; 2. Upper baffle assembly; 3. Airway assembly; 4. Internal telescopic airway component; 101. Oxygen mask; 102. Rear cushion; 103. Inlet; 104. Mask connector; 105. Connector holder; 106. Internal connection holder; 107. Degassing tube; 108. Silicone cap; 109. Mask strap holder; 110. Valve port; 111. Valve insert plate; 112. Valve seat; 113. Valve port; 114. Anaerobic breathing tube; 115. Silicone sheet; 116. Thin 117. Lower limit plate; 201. Upper connecting seat; 202. Upper threaded tube; 203. Upper baffle; 204. Rear rotating seat; 205. Adjusting bolt; 206. Baffle strap seat; 207. Inner soft pad; 301. Connecting silicone sleeve; 302. Inner retaining sleeve; 303. Air passage connecting plate; 304. Air passage; 305. Side groove; 401. Inner arc-shaped sliding groove; 402. Inner retaining tooth groove; 403. Inner air passage; 404. Inner air passage side groove; 405. Middle connecting slider; 406. Slider side teeth. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] In the description of this invention, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0031] like Figures 1-9 The multifunctional artificial airway for pre-hospital use is shown. In the mask assembly 1, the oxygen mask 101 at the front end is sealed with a mask tube 104 at the middle protrusion. The air inlet end of the mask tube 104 is connected to an anaerobic breathing tube 114. The anaerobic breathing tube 114 is provided with a silicone sheet 115 on the lower side. The rear end of the mask tube 104 is also connected to an inner connecting plate 106.

[0032] When the air inlet of the mask tube 104 is connected to an external oxygen source to supply oxygen to the patient, oxygen enters the anaerobic breathing tube 114 and pushes the silicone sheet 115 upward, causing the silicone sheet 115 to adhere to the anaerobic breathing tube 114 and cover it. At this time, the invention is in a positive pressure oxygen supply state. After the oxygen supply ends, under the elasticity of the silicone sheet 115 material and the push of the patient's breathing, the silicone sheet 115 will flip down to block the oxygen inlet of the mask tube 104 and open the anaerobic breathing tube 114. At this time, the patient can breathe freely.

[0033] The upper front end of the oxygen mask 101 is connected to an upper threaded tube 202. An adjusting bolt 205 is rotatably connected to the front side of the upper baffle 203, and the adjusting bolt 205 is threaded into the upper threaded tube 202. The front end of the connecting silicone sleeve 301 is sealed and fixed in the inner connecting bracket 106. The rear end of the connecting silicone sleeve 301 is connected to an airway 304. Side grooves 305 are symmetrically formed at both ends of the airway 304. The bottom of both sets of side grooves 305 shares an inner arc-shaped sliding groove 401. An inner locking groove 402 is provided on the outer arc surface of 401. A middle connecting slider 405 is fixedly connected to one end between the two sets of inner air passages 403. The slider side teeth 406 are fixedly connected to the outer arc surface of the middle connecting slider 405. The inner air passages 403 are slidably connected in the side grooves 305. The middle connecting slider 405 is slidably connected in the inner arc-shaped slide groove 401. The slider side teeth 406 can form an elastic locking fit with the inner locking groove 402 at any position as the middle connecting slider 405 slides in the inner arc-shaped slide groove 401.

[0034] This invention is suitable for use by both patients with spontaneous breathing and patients without spontaneous breathing;

[0035] When the patient's symptoms are mild and they can breathe independently, there is no need to insert the connecting silicone sleeve 301 into the inner connecting card holder 106. The oxygen mask 101 can be directly put on the patient's face, and the lower end of the mask tube 104 can be connected to the external oxygen source to achieve oxygen supply. This invention can be used as an ordinary oxygen mask.

[0036] When the patient's symptoms are severe, their spontaneous breathing function is good, but their airway is obstructed, the airway assembly 3 can be connected to the rear end of the inner connecting card 106. By inserting the airway assembly 3 into the patient's pharynx, the airway can be opened. This invention can form an oropharyngeal airway combined with an oxygen mask to provide oxygen.

[0037] The rear end of the airway 304 is inserted into the pharyngeal airway from the patient's mouth, and the patient's teeth can bite on the front end of the airway 304. After the mask tube 104 is connected to the external oxygen source, oxygen can enter the patient's airway from the side grooves 305 that are symmetrically opened at both ends of the airway 304, so as to achieve the purpose of oxygen supply.

[0038] Furthermore, when necessary, the extension length of the inner airway 403 within the airway can be adjusted via the inner telescopic airway component 4 to achieve accurate oxygen supply. When no adjustment is required, the inner telescopic airway component 4 is completely hidden within the airway assembly 3. When it is necessary to open the airway using the extended inner telescopic airway component 4 on top of the airway assembly 3, the inner airway 403 can be pulled outward, causing the connecting slider 405 to slide in the inner arc-shaped groove 401. The inner airway 403 is held in the adjusted position by the elastic engagement between the slider side teeth 406 and the inner locking groove 402.

[0039] It allows for short-term invasive mechanical ventilation using airway component 3 and internal telescopic airway component 4, even when advanced artificial airways cannot be established outside the hospital.

[0040] The specific structure of mask component 1 is as follows: Figure 2 , Figure 3 and Figure 4 As shown, an insertion port 103 is provided in the middle of the front end of the oxygen mask 101, and a connector clamp 105 is provided on the outside of the rear end of the mask connector 104. The mask connector 104 is sealed and snapped into the insertion port 103 by the connector clamp 105.

[0041] The soft silicone back pad 102 is connected to the rear end of the oxygen mask 101 around the entire circle. The back pad 102 can make it fit the patient's face better and improve the wearing comfort.

[0042] The internal connection card station 106 is fixedly connected to the rear end of the connecting card station 105;

[0043] The oxygen mask 101 has a vent pipe 107 connected to one side of the front end of the main body. The front end of the vent pipe 107 is covered with a silicone cap 108. Venting can be performed by opening the silicone cap 108.

[0044] Two sets of mask strap seats 109 are symmetrically fixedly connected to the lower part of the rear end of the oxygen mask 101, and can be tied to the patient's face by inserting elastic bands into the mask strap seats 109.

[0045] A valve body port 110 is provided in the front end of the mask connector 104. A valve body insert plate 111 is symmetrically connected to both ends of the valve body port 110. A valve body insert port 113 is symmetrically provided at both ends of the main body of the valve body seat 112. After the valve body seat 112 is inserted into the valve body insert plate 111 through the two sets of valve body insert ports 113, the valve body seat 112 itself can block the valve body port 110.

[0046] The anaerobic breathing tube 114 is inserted and fixed inside the valve body seat 112, and the silicone sheet 115 is fixedly connected to the inner surface of the valve body seat 112 through the sheet back seat 116.

[0047] The specific structure of the upper gear component 2 is as follows: Figure 5 As shown, the upper connecting seat 201 is fixedly connected to the middle position of the top front end of the oxygen mask 101, and the outer bottom of the upper threaded tube 202 is fixedly connected to the top end of the upper connecting seat 201.

[0048] A rear rotating seat 204 is fixedly connected to the middle position of the front end of the upper baffle 203. The rear end of the adjusting bolt 205 is rotatably connected in the rear rotating seat 204 and will not detach from the rear rotating seat 204.

[0049] Two sets of baffle strap seats 206 are symmetrically located at both ends of the upper baffle 203 body, and are connected to the patient's head by inserting elastic rubber bands into the baffle strap seats 206.

[0050] An inner soft pad 207 is also fixedly connected to the rear end of the upper baffle 203, which can improve the comfort of contact with the patient's head;

[0051] By turning the adjusting bolt 205, the adjusting bolt 205 and the upper threaded tube 202 are threaded together, which can adjust the position of the upper baffle 203 and the inner soft pad 207 relative to the upper threaded tube 202. This allows the inner soft pad 207 to fit better against the patient's head, and the back soft pad 102 to fit more tightly against the patient's face.

[0052] The specific structures of airway assembly 3 and internal telescopic airway component 4 are as follows: Figure 7 , Figure 8 and Figure 9 As shown, the inner sleeve 302 is connected to the front end of the connecting silicone sleeve 301, and the connecting silicone sleeve 301 is sealed and snapped into the inner connecting slot 106 by the inner sleeve 302.

[0053] An I-shaped airway connecting plate 303 is fixedly connected inside the rear end of the connecting silicone sleeve 301, and the front end of the airway 304 is fixedly connected in the airway connecting plate 303.

[0054] Furthermore, the main body of the airway 304 is S-shaped, which allows it to enter the pharynx more easily from the patient's mouth and quickly establish an artificial airway.

[0055] The inner airway side groove 404 is located at the outer end of the main body of the inner airway 403. When needed, the inner airway 403 can be extended and retracted relative to the airway 304 to form an integral airway connecting the inner airway 403 and the airway 304. The connected inner airway side groove 404 and side groove 305 can provide a channel for the flow of oxygen.

[0056] Preferably, the inner surface of the anaerobic breathing tube 114 is a sloping structure, which allows the silicone sheet 115 to be pushed to a position that fits against the sloping surface of the anaerobic breathing tube 114 when external positive pressure oxygen is supplied, thereby sealing the anaerobic breathing tube 114 and achieving efficient oxygen supply.

[0057] Preferably, a lower limit plate 117 is also fixed to the bottom of the inner surface of the valve body seat 112, and the lower limit plate 117 is located below the silicone sheet 115; this allows the patient to push the silicone sheet 115 to a position close to the lower limit plate 117 during exhalation when there is no oxygen supply, thereby blocking the oxygen inlet of the mask tube 104 and opening the anaerobic breathing tube 114. The anaerobic breathing tube 114 enables communication with the external environment, thus allowing the patient to perform breathing operations through the anaerobic breathing tube 114 even when there is no oxygen supply.

[0058] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A multifunctional artificial airway for pre-hospital use, comprising a mask assembly (1), characterized in that: It also includes an upper baffle assembly (2), an airway assembly (3), and an internal telescopic airway component (4); The mask assembly (1) includes an oxygen mask (101) and a mask tube (104), the upper baffle assembly (2) includes an upper baffle (203), the airway assembly (3) includes a connecting silicone sleeve (301), and the inner telescopic airway component (4) includes an inner airway (403) and a slider side tooth (406). The rear end of the mask tube (104) is sealed and snapped into the front end of the oxygen mask (101) body. The air inlet end of the mask tube (104) is connected to the anaerobic breathing tube (114). The anaerobic breathing tube (114) is provided with a silicone sheet (115) on the lower side. The rear end of the mask tube (104) is also connected to an internal connecting plate (106). The upper front end of the oxygen mask (101) is connected to an upper threaded tube (202). An adjusting bolt (205) is rotatably connected to the front side of the upper baffle (203), and the adjusting bolt (205) is threaded into the upper threaded tube (202). The front end of the connecting silicone sleeve (301) is sealed and fixed in the inner connecting bracket (106). The rear end of the connecting silicone sleeve (301) is connected to an airway (304). The two ends of the airway (304) are symmetrically provided with side grooves (305). The bottom of the side groove (305) is provided with an inner arc-shaped sliding groove (401). The outer arc surface of the inner arc-shaped sliding groove (401) is provided with an inner tooth groove (402). One end of the two sets of inner air passages (403) is fixedly connected to a middle connecting slider (405). The side teeth (406) of the slider are fixedly connected to the outer arc surface of the middle connecting slider (405). The inner air passages (403) are slidably connected in the side groove (305), and the middle connecting slider (405) is slidably connected in the inner arc-shaped sliding groove (401).

2. The pre-hospital multifunctional artificial airway according to claim 1, characterized in that: The mask assembly (1) also includes a rear soft pad (102), a mask strap seat (109), a valve seat (112), and a thin-film rear retainer (116). The front body of the oxygen mask (101) has an insertion port (103), and the outer side of the rear end of the mask tube (104) has a tube holder (105). The mask tube (104) is sealed and snapped into the insertion port (103) by the tube holder (105). The rear soft pad (102) is connected to the rear end of the oxygen mask (101) in a complete circle. The inner connecting holder (106) is fixedly connected to the rear end of the tube holder (105). A vent pipe (107) is connected to one side of the front end of the oxygen mask (101). A silicone cap (108) is attached to the front end of the vent pipe (107). The mask strap seat (109) is symmetrically fixedly connected to the lower part of the rear end of the oxygen mask (101). The front end of the mask tube (104) has a valve port (110). The two ends of the valve port (110) are symmetrically connected to valve insert plates (111). The two ends of the main body of the valve seat (112) have symmetrical valve inserts (113). After the valve seat (112) is inserted into the valve insert plate (111) through the two sets of valve inserts (113), the valve seat (112) itself can block the valve port (110). The anaerobic breathing tube (114) is inserted and fixed inside the main body of the valve seat (112). The silicone sheet (115) is fixedly connected to the inner surface of the valve seat (112) through the sheet back seat (116).

3. A multifunctional artificial airway for pre-hospital use according to claim 2, characterized in that: The inner surface of the anaerobic breathing tube (114) is a sloping structure.

4. A multifunctional artificial airway for pre-hospital use according to claim 2 or 3, characterized in that: A lower limit plate (117) is also fixed to the bottom of the inner surface of the valve body seat (112), and the lower limit plate (117) is located below the silicone sheet (115).

5. A multifunctional artificial airway for pre-hospital use according to claim 1, 2, or 3, characterized in that: The upper baffle assembly (2) also includes an upper connecting seat (201) and a baffle strap seat (206). The upper connecting seat (201) is fixedly connected to the top of the front end of the oxygen mask (101). The outer bottom of the upper threaded tube (202) is fixedly connected to the top of the upper connecting seat (201). A rear rotating seat (204) is fixedly connected to the middle position of the front end of the upper baffle (203). The rear end of the adjusting bolt (205) is rotatably connected to the rear rotating seat (204). Two sets of baffle strap seats (206) are symmetrically opened at both ends of the upper baffle (203) body. An inner soft pad (207) is also fixedly connected to the rear end of the upper baffle (203).

6. A multifunctional artificial airway for pre-hospital use according to claim 2 or 3, characterized in that: The airway assembly (3) also includes an inner sleeve (302), which is connected to the front end of the connecting silicone sleeve (301). The connecting silicone sleeve (301) is sealed and snapped into the inner connecting plate (106) by the inner sleeve (302). An airway connecting plate (303) is fixedly connected to the rear end of the connecting silicone sleeve (301), and the front end of the airway (304) is fixedly connected to the airway connecting plate (303).

7. A multifunctional artificial airway for pre-hospital use according to claim 1, 2, or 3, characterized in that: The main body of the airway (304) is S-shaped.

8. A multifunctional artificial airway for pre-hospital use according to claim 1, 2 or 3, characterized in that: The internal telescopic airway component (4) also includes an internal airway side groove (404), which is located at the outer end of the main body of the internal airway (403).

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