CN215309437U

CN215309437U - Multipurpose ventilation mask

Info

Publication number: CN215309437U
Application number: CN202120642809.XU
Authority: CN
Inventors: 车路阳; 李晶哲
Original assignee: EXPERIMENTAL RESEARCH CENTER CHINA ACADEMY OF CHINESE MEDICAL SCIENCES; Beijing North Medical District Of Pla General Hospital
Current assignee: EXPERIMENTAL RESEARCH CENTER CHINA ACADEMY OF CHINESE MEDICAL SCIENCES; Beijing North Medical District Of Pla General Hospital
Priority date: 2021-03-30
Filing date: 2021-03-30
Publication date: 2021-12-28
Anticipated expiration: 2031-03-30

Abstract

The utility model relates to a multipurpose ventilation mask, which comprises a mask body, and an A valve, a B valve and an inflatable soft edge which are arranged on the mask body; the valve A and the valve B are respectively arranged on two sides of the mask body, and the edge of the mask body is provided with an inflatable soft edge; the valve A is a one-way air inlet valve and comprises a first valve body, and the first valve body is fixedly arranged on the mask body; a first limiting valve rod and a first spring for limiting pressure are arranged in the first valve body, and the first limiting valve rod is positioned in the first spring and used for limiting the telescopic stroke of the first spring; the bottom of first spacing valve rod and the bottom of first spring all fix the top at first valve body, and the top of first spacing valve rod is provided with first movable plate, and the top and the first movable plate of first spring are connected, and first movable plate is located the bottom opening part outside of first valve body. The utility model can realize rescue of pure respiratory alkalosis, oxygen inhalation of a common mask and artificial ventilation.

Description

Multipurpose ventilation mask

Technical Field

The present invention relates to medical equipment, and more particularly to a multipurpose pressure controlled ventilation mask for treating hyperventilation/respiratory alkalosis.

Background

Simple respiratory alkalosis is caused primarily by excessive exhalation of carbon dioxide for a variety of reasons. Frequently occurring in chest and abdomen trauma, repeated groaning for pain accelerates the respiratory rate; it is also common in young and middle-aged women, who suffer from hysterical short breath after mental stimulation (such as competition with people), resulting in respiratory alkalosis. The clinical manifestations are rapid ventilation, numbness of mouth, lip and limbs, chest distress, short breath, even convulsion and coma.

At present, the most common method for treating respiratory alkalosis in clinic is to cover the mouth and nose with a paper tube or a plastic bag, increase a physiologically ineffective cavity, enable exhaled carbon dioxide to be inhaled into the body again, and increase the concentration of the carbon dioxide in the body. The method is simple and easy to implement, but has the problems of incapability of controlling the air suction quantity and the carbon dioxide concentration, high requirement on the material for manufacturing the paper tube, easy wetting of the paper tube and the like. The lack of standard equipment makes the emergency treatment and the pre-emergency treatment have the problems which are difficult to be solved in a standard way (the suitable paper is difficult to find in the emergency site).

Disclosure of Invention

In view of the above problems, the present invention provides a multipurpose ventilation mask, which can achieve rescue of pure respiratory alkalosis, oxygen inhalation by a common mask and artificial ventilation.

In order to achieve the purpose, the utility model adopts the following technical scheme: a multipurpose ventilation mask comprises a mask body, an A valve, a B valve and an inflatable soft edge, wherein the A valve, the B valve and the inflatable soft edge are arranged on the mask body; the valve A and the valve B are respectively arranged on two sides of the mask body, and the edge of the mask body is provided with the inflatable soft edge; the valve A is a one-way air inlet valve and comprises a first valve body, and the first valve body is fixedly arranged on the mask body; a first limiting valve rod and a first spring for limiting pressure are arranged in the first valve body, and the first limiting valve rod is positioned in the first spring and used for limiting the telescopic stroke of the first spring; the bottom of first limit valve rod and the bottom of first spring are all fixed the top of first valve body, the top of first limit valve rod is provided with first movable plate, just the top of first spring with first movable plate is connected, first movable plate is located the bottom opening part of first valve body is outside.

Further, the top of the first valve body is of a hollow structure.

Further, the B valve includes a rotary cap; the rotary cover is arranged on the mask body, the mask body and the rotary cover are connected into a whole through a rotating shaft to form a double-layer structure, and the rotary cover can rotate on the mask body along the rotating shaft; the rotary cover is provided with a vent and a one-way air outlet valve, and the mask body is provided with an opening.

Furthermore, the one-way air outlet valve comprises a second valve body, the second valve body is arranged on the rotary cover, a second limiting valve rod and a second spring for limiting pressure are arranged in the second valve body, and the second limiting valve rod is positioned in the second spring and used for limiting the telescopic stroke of the second spring; a fixing piece is arranged at the bottom of the second limiting valve rod and is positioned in the second valve body, and the bottom of the second spring is connected with the fixing piece; the top of the second limiting valve rod is provided with a second movable sheet, the top of the second spring is connected with the second movable sheet, and the second movable sheet is located outside the opening at the top of the second valve body.

Furthermore, stop pieces are arranged on the first limit valve rod and the second limit valve rod.

Furthermore, the inflatable soft edge is provided with a soft edge inflation inlet at the bottom of the mask body.

Further, an air bag interface is arranged at the lower part of the mask body, and an oxygen interface is arranged beside the air bag interface.

Further, the air bag interface is connected with an air storage bag or an artificial respiration air bag.

Further, a sealing sheet is arranged at the air bag interface.

Furthermore, the mask also comprises a head band, and two ends of the head band are connected with two sides of the mask body.

Due to the adoption of the technical scheme, the utility model has the following advantages: 1. the utility model realizes the control of the respiratory pressure by taking the valve A and the valve B as constant-pressure one-way valves, can control the retention amount of carbon dioxide compared with the traditional paper tube method and the simple respirator method, and has higher success rate and better safety. 2. The utility model can realize the pressure difference of inspiration and expiration, force the patient to inhale forcefully, breathe out quietly, reduce the breathing frequency and accelerate the flat recovery time. 3. The utility model can be used for a plurality of scenes such as alkalosis treatment, simple manual ventilation, common mask ventilation and the like, and the standard oxygen interface can be equipped in a plurality of places such as ambulances, rescue rooms and the like, thereby realizing multiple purposes.

Drawings

Fig. 1 is a schematic front view of the present invention.

Fig. 2 is a bottom view of the present invention.

Fig. 3 is a schematic structural view of the closed state of the valve a of the present invention.

Fig. 4 is a schematic view of the top structure of valve a of the present invention.

Fig. 5 is a structural diagram of the valve opening state of the valve A of the utility model.

Fig. 6 is a schematic view of the structure of the rotary cover of the valve B of the utility model.

Fig. 7 is a structural schematic diagram of the opening state of the one-way air outlet valve.

Fig. 8 is a schematic structural view of the closed state of the one-way air outlet valve of the utility model.

Detailed Description

In order to make the objects, 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 drawings of the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the utility model, are within the scope of the utility model.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "inside", "outside", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

As shown in fig. 1 and 2, the utility model provides a multipurpose ventilation mask, which comprises a mask body 1, an A valve 2, a B valve 3 and an inflatable soft edge 4, wherein the A valve 2, the B valve 3 and the inflatable soft edge 4 are arranged on the mask body 1. The valve A2 and the valve B3 are respectively arranged on two sides of the mask body 1, and the edge of the mask body 1 is provided with an inflatable soft edge 4, and the inflatable soft edge 4 is tightly attached to the mouth and the nose and is prevented from being crushed.

In a preferred embodiment, as shown in fig. 3 to 5, the a valve 2 is a one-way intake valve, and includes a first valve body 5, the first valve body 5 is fixedly disposed on the mask body 1, a first limiting valve rod 6 and a first spring 7 for limiting pressure are disposed in the first valve body 5, and the first limiting valve rod 6 is disposed in the first spring 7 and is used for limiting the expansion stroke of the first spring 7. The bottom of first spacing valve rod 6 and the bottom of first spring 7 are all fixed at the top of first valve body 5, the top of first spacing valve rod 6 is provided with first movable plate 8, and the top of first spring 7 is connected with first movable plate 8, first movable plate 8 is located the bottom opening part of first valve body 5 outside, first movable plate 8 can reciprocate on first spacing valve rod 6 under the drive of first spring 7, close or open the bottom opening part of first valve body 5, and then realize closing of one-way admission valve and open.

In the above embodiment, as shown in fig. 4, the top of the first valve body 5 is a hollow structure 9 and is located outside the mask body 1; when the valve A2 is opened, the outside air enters the valve body from the hollow structure 9.

In the above embodiment, the diameter of the first movable piece 8 is larger than the diameter of the bottom of the first valve body 5.

In use, when the negative pressure in the mask reaches 30cmH2O, the A valve 2 is opened, but not when the pressure is not reached.

In a preferred embodiment, as shown in fig. 1 and 6, the B-valve 3 comprises a rotary cover 11 (as shown in fig. 6), the rotary cover 11 is disposed on the mask body 1, the mask body 1 and the rotary cover 11 are integrally connected through a rotating shaft 12 to form a double-layer structure, and the rotary cover 11 can rotate on the mask body 1 along the rotating shaft 12. The rotary cover 11 is provided with a vent 13 and a one-way vent valve 14, and the mask body 1 is provided with an opening 15.

When the rotary cover 11 rotates, the function of three gears can be realized, when the opening 15 corresponds to the one-way air outlet valve 14, the gear is 1, and at the moment, the one-way air outlet valve 14 works; when the opening 15 is not corresponding to the vent 13 and the one-way gas outlet valve 14, the gear is 2, the valve B3 is in a closed state, and gas can not enter and exit; when the opening 15 corresponds to the vent hole 13, it is 3 stages, and the B valve 3 is in an open state and directly communicates with the outside through the vent hole 13.

Preferably, as shown in fig. 7 and 8, the one-way air outlet valve 14 includes a second valve body 16, the second valve body 16 is disposed on the rotary cover 11, a second limiting valve rod 17 and a second spring 18 for limiting pressure are disposed in the second valve body 16, and the second limiting valve rod 17 is located in the second spring 18 for limiting the expansion stroke of the second spring 18. A fixing piece 19 is arranged at the bottom of the second limiting valve rod 17, the fixing piece 19 is positioned in the second valve body 16, and the bottom of the second spring 18 is connected with the fixing piece 19; the top of the second limit valve rod 17 is provided with a second movable plate 20, the top of the second spring 18 is connected with the second movable plate 20, the second movable plate 20 is located outside the top opening of the second valve body 16, the second movable plate 20 can move up and down on the second limit valve rod 17 under the driving of the second spring 18, the top opening of the second valve body 16 is opened or closed, and then the opening and closing of the one-way air outlet valve 14 are realized. In use, the one-way outlet valve 14 is opened when the positive pressure in the mask reaches 25cmH2O, but not when the pressure is not reached.

In the above embodiments, the soft edge inflating opening 21 is arranged on the inflatable soft edge 4 at the bottom of the mask body 1.

In a preferred embodiment, an air bag interface 22 is arranged at the lower part of the mask body 1, and an oxygen interface 23 is arranged beside the air bag interface 22.

In the above embodiments, the air bag interface 22 may be connected to an air reservoir or an artificial respiration air bag. The balloon interface 22 is preferably a 1.5cm diameter circular interface.

Wherein, the gas storage bag is made of PVC material, adopts an ellipsoid body, has a flat bottom and a bayonet at the upper end, and is communicated with the mask through an air bag interface 22. The air storage bag is of a semi-hard shell structure, cannot be expanded, and can be deformed by light-medium collapse. Preferably, the thickest part of the gas reservoir is 12cm in diameter.

The artificial respiration air bag is made of soft PVC material, the shape of the artificial respiration air bag is the same as that of the air storage bag, and the bottom of the artificial respiration air bag is provided with an air valve for one-way air intake. The artificial respiration air bag is provided with a bayonet and is communicated with the mask through an air bag interface 22. The diameter of the thickest part of the artificial respiration air bag is preferably 12-15cm, the artificial respiration air bag can be collapsed by extrusion, air enters the mask from the bayonet at the upper end, and naturally rebounds after the hand is loosened, and air is fed through the bottom air valve and the oxygen tube.

In the above embodiment, the oxygen interface 23 may be connected to a standard oxygen tube.

In the above embodiment, a sealing sheet is provided at the airbag interface 22. The sealing sheet is made of PVC material, has a bottle cap-shaped structure, can be connected with the interface in a threaded manner, and seals the interface through the sealing sheet when the mask for alkali poisoning is used for ventilation.

In the above embodiments, the mask body 1 is made of transparent PVC material, and has moderate hardness and a closed structure.

In the above embodiments, the first limiting valve rod 6 and the second limiting valve rod 17 are both provided with the stop piece 24 to prevent the movable piece from sliding out of the limiting valve rod.

In the above embodiments, the mask of the present invention further includes a headband, and two ends of the headband are connected to two sides of the mask body 1. The headband adopts an elastic structure, can adjust the tightness and is fixed behind the brain.

Example 1: used for treating simple respiratory alkalosis

After respiratory alkalosis is judged, the mask is buckled at the mouth and the nose and is tightly attached to the face, the head band is fixed behind the brain, the valve B3 is adjusted to the 1 gear, the interface 22 is connected with the air storage bag, the air storage bag is slightly squeezed and kept in a squeezing state, and the mask is connected. The patient breathes naturally, the expired air enters the air storage bag, and carbon dioxide in the air storage bag is inhaled when the patient breathes in again so as to improve the respiratory alkalosis. The initial breathing stage of the patient is shallow and fast breathing, when the inspiratory pressure does not exceed 30cmH2O, the breathing is closed, the one-way air outlet valves 14 on the valve A2 and the valve B3 are not opened, the concentration of carbon dioxide in breathing is increased, the patient is forced to inhale forcefully, and the valve A2 is opened; the pressure difference exists between the air inlet valve and the air outlet valve, so that the patient is forced to inhale, exhale quietly, the breathing frequency is naturally slowed down, and the alkalosis condition is improved.

Example 2: artificial ventilation

The mask of the utility model is multipurpose and can be used as an artificial ventilation mask in emergency. When artificial ventilation is needed, the mask is covered at the mouth and the nose of a patient and is tightly attached to the face, the head band is fixed, the B valve 3 is adjusted to 2 gears and is closed, the lower interface 22 is connected with the artificial respiration air bag, and the oxygen interface 23 is connected with oxygen. The artificial respiration air bag is pressed to realize artificial ventilation in emergency.

Example 3: used as a common oxygen mask

The mask can be used as a common oxygen mask, the mask covers the mouth and the nose, the valve B3 is adjusted to 3, the mask is directly communicated with the atmosphere, the air bag interface 22 is sealed by the sealing sheet, oxygen is connected by side, and the oxygen inhalation of the common mask is realized.

In summary, the present invention can realize the following functions when in use:

pressure control ventilation: the valve A2 and the valve B3 are used as constant-pressure one-way valves to control the respiratory pressure, and compared with the traditional paper tube method and the simple respirator method, the device can control the retention amount of carbon dioxide, and has higher success rate and better safety.

Respiratory pressure difference method: realize the pressure difference of breathing, force the patient to inhale by force, calmly exhale, reduce respiratory rate, accelerate the flat time of recovering.

The multifunctional mask can be used for a plurality of scenes such as alkalosis treatment, simple manual ventilation, common mask ventilation and the like, and the standard oxygen interface 23 can be equipped in a plurality of places such as an ambulance, a rescue room and the like, so that the multifunctional mask is realized.

The above embodiments are only for illustrating the present invention, and the structure, size, arrangement position and shape of each component can be changed, and on the basis of the technical scheme of the present invention, the improvement and equivalent transformation of the individual components according to the principle of the present invention should not be excluded from the protection scope of the present invention.

Claims

1. A multipurpose ventilation mask is characterized by comprising a mask body, an A valve, a B valve and an inflatable soft edge, wherein the A valve, the B valve and the inflatable soft edge are arranged on the mask body; the valve A and the valve B are respectively arranged on two sides of the mask body, and the edge of the mask body is provided with the inflatable soft edge;

the valve A is a one-way air inlet valve and comprises a first valve body, and the first valve body is fixedly arranged on the mask body; a first limiting valve rod and a first spring for limiting pressure are arranged in the first valve body, and the first limiting valve rod is positioned in the first spring and used for limiting the telescopic stroke of the first spring; the bottom of first limit valve rod and the bottom of first spring are all fixed the top of first valve body, the top of first limit valve rod is provided with first movable plate, just the top of first spring with first movable plate is connected, first movable plate is located the bottom opening part of first valve body is outside.

2. The multipurpose ventilation mask of claim 1, wherein the top of the first valve body is hollowed out.

3. The multipurpose ventilation mask of claim 1, wherein the B-valve comprises a swivel cap; the rotary cover is arranged on the mask body, the mask body and the rotary cover are connected into a whole through a rotating shaft to form a double-layer structure, and the rotary cover can rotate on the mask body along the rotating shaft; the rotary cover is provided with a vent and a one-way air outlet valve, and the mask body is provided with an opening.

4. The multipurpose ventilation mask according to claim 3, wherein the one-way vent valve includes a second valve body disposed on the rotary cover, and a second limiting valve stem and a second spring for limiting pressure are disposed in the second valve body, and the second limiting valve stem is disposed in the second spring for limiting the extension stroke of the second spring; a fixing piece is arranged at the bottom of the second limiting valve rod and is positioned in the second valve body, and the bottom of the second spring is connected with the fixing piece; the top of the second limiting valve rod is provided with a second movable sheet, the top of the second spring is connected with the second movable sheet, and the second movable sheet is located outside the opening at the top of the second valve body.

5. The multi-purpose ventilation mask of claim 4, wherein stop tabs are provided on both the first and second stop valve stems.

6. A multipurpose ventilation mask according to any one of claims 1 to 5, wherein a soft-edge inflation port is provided in the inflatable soft-edge at the bottom of the mask body.

7. The multipurpose ventilation mask according to any one of claims 1 to 6, wherein an air bag port is provided at a lower portion of the mask body, and an oxygen port is provided beside the air bag port.

8. The multipurpose ventilation mask of claim 7, wherein the air bag interface is connected to an air reservoir or an artificial respiration air bag.

9. The multipurpose ventilation mask of claim 7, wherein a flap is positioned at the air bladder interface.

10. The multipurpose ventilation mask according to any one of claims 1 to 5, further comprising a headband, both ends of which are connected to both sides of the mask body.