CN219022847U - Positive end-expiratory pressure valve - Google Patents

Abstract

The utility model relates to the technical field of medical equipment, and particularly discloses a positive end-expiratory pressure valve which comprises a screw cap, an upper cover, a lower cover and a silica gel valve plate, wherein the silica gel valve plate is arranged between the lower cover and the upper cover and can move up and down along the axial line direction of the lower cover so as to adjust the flow speed of external gas which is input into a cavity formed by the lower end of the lower cover, the upper cover and the screw cap. According to the utility model, the silica gel valve plate is arranged, so that when a human body exhales air and goes out through the end-expiratory positive pressure valve, the air slowly flows out through the blocking of the silica gel valve plate, so that the air can be slowly discharged in the lungs in a multi-combination way, the pressure can be set according to different conditions of patients, the air discharge speed from the lungs can be controlled by adjusting the screw cap, the problem that the existing hydraulic end-expiratory pressure ventilator cannot effectively control the air discharge speed from the lungs is solved, and the practicability is improved, and the hydraulic end-expiratory pressure ventilator has a wide market prospect.

Description

Positive end-expiratory pressure valve

Technical Field

The utility model belongs to the technical field of medical appliances, and particularly relates to a positive end-expiratory pressure valve.

Background

Currently, in some pulmonary treatments, positive end-expiratory pressure is usually applied, wherein a pressure higher than atmospheric pressure is artificially applied in the airway and alveoli during the end-expiratory phase of the respiratory cycle, so as to prevent the occurrence of alveolar occlusion and increase the lung compliance. Thus, there is a need to increase end-tidal pressure through end-tidal ventilators.

At present, the simple hydraulic end-of-breath pressure ventilator on the market is inserted into underwater expiration through a straw, has partial effect, but has inaccurate pressure control. Thus, the prior art solutions described above have the following drawbacks: the hydraulic end-of-breath pressure ventilator formed by inserting a suction tube into underwater expiration is used for controlling the air discharge speed by itself, so that the problem of inaccurate pressure control exists, and the accurate control of the air discharge speed from the lung cannot be realized. Therefore, designing a positive end-expiratory pressure valve for controlling the rate of air exiting the lungs is a current challenge.

Disclosure of Invention

The embodiment of the utility model aims to provide a positive end expiratory pressure valve, which aims to solve the problem that the existing hydraulic type negative end expiratory pressure ventilator provided in the background art cannot effectively control the air discharge speed from the lung.

The embodiment of the utility model is realized in that the positive end expiratory pressure valve comprises a screw cap and an upper cover which is used for being detachably connected with the screw cap, and the positive end expiratory pressure valve further comprises:

the upper end of the lower cover is communicated with the upper cover and the screw cap respectively, and the lower end of the lower cover is communicated with the outside so as to input external gas into a cavity formed by the lower cover, the upper cover and the screw cap together; and

the silica gel valve block is arranged between the lower cover and the upper cover, can move up and down along the axial lead direction of the lower cover so as to adjust the flow speed of external air which is input from the lower end of the lower cover into a cavity formed by the lower cover, the upper cover and the screw cap together, and in actual use, when a user uses the positive end expiratory pressure valve to breathe air, the blocking is realized through the up and down movement of the silica gel valve block, and then the air discharge speed from the lung can be controlled.

Preferably, the positive end expiratory pressure valve further comprises a shaft core sleeve, a shaft core cover and a shaft core rod, wherein the shaft core sleeve is arranged between the screw cap and the upper cover, the shaft core cover is arranged below the upper cover, the upper end of the shaft core cover is connected with the shaft core sleeve, the upper end of the shaft core rod is connected with the shaft core cover, and the lower end of the shaft core rod is inserted on the silica gel valve plate.

Preferably, the positive end expiratory pressure valve further comprises a bayonet for connecting the screw cap and the upper cover.

Preferably, the positive end expiratory pressure valve further comprises a tower spring and a spring, wherein the tower spring is sleeved on the shaft core rod, the spring is sleeved on the tower spring, and the upper end of the spring props against the shaft core cover.

The beneficial effects of the utility model are as follows:

compared with the prior art, the positive end expiratory pressure valve provided by the embodiment of the utility model comprises the screw cap, the upper cover, the lower cover and the silica gel valve plate, wherein the silica gel valve plate is arranged between the lower cover and the upper cover and can move up and down along the axial line direction of the lower cover so as to adjust the flow speed of external gas which is input from the lower end of the lower cover to a cavity formed by the lower cover, the upper cover and the screw cap together. The device has set up the silica gel valve block, because there is the blocking of silica gel valve block, the human body is exhaling gas, when this limit of going out through the end positive pressure valve of exhaling, stop through the silica gel valve block makes the gas can slowly flow out, let the air combine slowly to discharge more in the lung, according to patient's condition difference, can set up the pressure size through adjusting the nut, and then control air is from lung discharge velocity, the problem that current hydraulic type end pressure breather of breathing exists unable effective control air from lung discharge velocity has been solved, thereby the practicality has been improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following description will briefly introduce the drawings that are needed in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are only some embodiments of the present utility model.

Fig. 1 is a schematic diagram of a positive end-expiratory pressure valve according to an embodiment of the utility model.

Fig. 2 is a schematic diagram of the structure of a nut, a bayonet, a mandrel cover, an upper cover, and a mandrel cover in a positive end expiratory pressure valve according to an embodiment of the utility model.

Fig. 3 is a schematic structural diagram of a central axis core bar, a silica gel valve plate and a lower cover of a positive end expiratory pressure valve according to an embodiment of the utility model.

Fig. 4 is a schematic diagram of a scale label in a positive end expiratory pressure valve according to another embodiment of the utility model.

In the figure: 1-a nut; 2-bayonet lock; 3-a shaft core sleeve; 4-upper cover; 5-a shaft core cover; 6-tower springs; 7-a spring; 8-shaft core bar; 9-a silica gel valve plate; 10-a lower cover; 11-scale label.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present utility model more clear, the technical solutions in the present embodiments will be clearly and completely described below with reference to the drawings in the present embodiments, and it is apparent that the described embodiments are only some embodiments of the present utility model, but not all embodiments. All other embodiments, based on the embodiments herein, which would be within the purview of one of ordinary skill in the art without the creative effort, are contemplated as falling within the scope of the present utility model.

In the description of the present utility model, it is to be understood that unless explicitly specified and limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact by another feature therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature. Specific implementations of the utility model are described in detail below in connection with specific embodiments.

As shown in fig. 1-3, the structure of the positive end-expiratory pressure valve according to one embodiment of the present utility model is provided, where the positive end-expiratory pressure valve includes a screw cap 1 and an upper cover 4 for detachably connecting with the screw cap 1, and the positive end-expiratory pressure valve further includes:

the upper end of the lower cover 10 is respectively communicated with the upper cover 4 and the screw cap 1, and the lower end of the lower cover 10 is communicated with the outside so as to input the outside air into a cavity formed by the lower cover 10, the upper cover 4 and the screw cap 1; and

the silica gel valve plate 9 is arranged between the lower cover 10 and the upper cover 4, and can move up and down along the axial line direction of the lower cover 10 so as to adjust the flow speed of external air which is input into a cavity formed by the lower cover 10, the upper cover 4 and the screw cap 1 together from the lower end of the lower cover 10, and in actual use, an exhaust port is arranged on the upper cover 4 or the screw cap 1, and when a user uses the positive end expiratory pressure valve to breathe air, the blocking is realized through the up-down movement of the silica gel valve plate 9, so that the air discharge speed from the lung can be controlled.

In the embodiment of the utility model, in particular, when the heart and lung of a person cannot breathe spontaneously, air is needed to be extruded and fed through a resuscitator, and then the heart and lung absorb oxygen, and as the air pressure of the lung is larger than that of the air, the air is discharged after the air enters the lung and oxygen absorption is not carried out, so that certain waste is caused, the physical consumption of the user is increased, and the physical recovery is not facilitated. In order to slow down the air discharge loss and make the combination of heart and lung and oxygen more sufficient, a positive end-expiratory pressure valve is arranged. The end positive pressure valve has been through having set up silica gel valve block 9, because there is silica gel valve block 9 to block, when the external gas input (the human body is in exhaling gas, this limit of passing through end positive pressure valve goes out), block through silica gel valve block 9 makes gas can be slow outflow, let the air combine slowly to discharge in the lung more, according to patient's condition difference, can set up the pressure size through adjusting nut 1, and then control air is followed lung discharge velocity, the problem that current hydraulic end pressure type end pressure ventilator exists unable effective control air from lung discharge velocity has been solved.

In one example of the utility model, under the combined work of the cavity formed by the lower cover 10, the upper cover 4 and the screw cap 1 and the silica gel valve plate 9, the pressure adjusting screw cap 1 is added to adjust the pressure applied by the pressure higher than the atmospheric pressure in the air passage and the alveoli, so that the pressure can be set according to the requirement, the pressure regulation is convenient and accurate, and compared with the existing simple hydraulic end-expiratory positive pressure ventilator, the end-expiratory positive pressure valve is convenient to use, does not need a caretaker to help beside, lightens the burden of patients and families, and is easy to popularize and apply.

Further, as a preferred embodiment of the present utility model, the positive end expiratory pressure valve further includes a mandrel sleeve 3, a mandrel cover 5 and a mandrel 8, the mandrel sleeve 3 is disposed between the nut 1 and the upper cover 4, the mandrel cover 5 is disposed below the upper cover 4, the upper end of the mandrel cover 5 is connected with the mandrel sleeve 3, the upper end of the mandrel 8 is connected with the mandrel cover 5, the lower end of the mandrel 8 is inserted on the silica gel valve plate 9, in practical application, the mandrel 8 is inserted on the silica gel valve plate 9 by placing the silica gel valve plate 9 on the lower cover 10, and the mandrel sleeve 3 and the mandrel cover 5 are driven to rotate by rotating the nut 1, so as to adjust the rotation of the mandrel 8, thereby adjusting the up-down movement of the mandrel valve plate 9, realizing the purpose of setting the pressure by adjusting the nut 1, and further controlling the air discharge speed from the lung.

Further, as a preferred embodiment of the present utility model, the positive end expiratory pressure valve further comprises a bayonet lock 2 for connecting the nut 1 with the upper cover 4, the nut 1 and the upper cover 4 are detachably connected by using the bayonet lock 2, the structure prevents the nut 1 from rotating over the head when the nut 1 is depressurized and revolves, the nut 1 is prevented from being completely separated from the upper cover 4, the inner shaft core assembly is ejected, the accessory is lost, and the positive end expiratory pressure valve is convenient to detach by using the bayonet lock 2.

Further, as a preferred embodiment of the present utility model, the positive end expiratory pressure valve further comprises a tower spring 6 and a spring 7, the tower spring 6 is sleeved on the mandrel 8, the spring 7 is sleeved on the tower spring 6, and the upper end of the spring 7 abuts against the mandrel cover 5, so as to connect the lower end of the mandrel cover 5 with the mandrel 8.

In one example of the present utility model, when the positive end expiratory pressure valve is assembled, as shown in fig. 1, the nut 1, the bayonet lock 2, the mandrel sleeve 3, the upper cover 4, the mandrel cover 5, the tower spring 6, the spring 7, the mandrel bar 8, the silica gel valve plate 9, the lower cover 10 and other components are assembled together along the integral central axis, the silica gel valve plate 9 is placed on the lower cover 10, the mandrel bar 8 is inserted on the silica gel valve plate 9, the tower spring 6 is sleeved on the mandrel bar 8, the spring 7 is sleeved on the tower spring 6, the upper end of the spring 7 is propped against the mandrel cover 5, the mandrel sleeve 3 covers the mandrel cover 5, the nut 1 is screwed with the upper cover 4 to press the mandrel sleeve 3, and the bayonet lock 2 passes through the hole on the nut 1, so that the nut 1 and the upper cover 4 can not be ejected by the spring 7 without screw threads, thereby avoiding the nut 1 from being ejected from the upper cover 4 and causing the accessory to be lost.

Further, as a preferred embodiment of the present utility model, as shown in fig. 4, the positive end expiratory pressure valve further comprises a scale label 11. The pressure set by rotating the adjusting nut 1 can be accurately read through the scale tag 11, and the air discharge speed from the lung can be further controlled.

In one example of the utility model, the positive end-expiratory pressure valve functions: when the heart and the lung can not breathe spontaneously, air is extruded and fed through the resuscitator, then the heart and the lung absorb oxygen, and as the air pressure of the lung is larger than that of the air, the air can be discharged without oxygen absorption combination when the air enters the lung, so that the loss of air discharge is slowed down, and the heart and the oxygen are combined more fully, so that the end-expiratory positive pressure valve is arranged. The human body is exhaling gas, and goes out through the end-expiratory positive pressure valve this limit, because there is the stop of silica gel valve block 9, and gaseous can be slow outflow, lets the air combine slowly to discharge in the lung more, according to patient's condition difference, can set up pressure size through adjusting nut 1, and then control air from the pulmonary discharge rate.

The implementation principle of the embodiment is as follows: the positive end-expiratory pressure valve is characterized in that the silica gel valve plate 9 is arranged, and because the silica gel valve plate 9 is used for blocking, when the human body exhales gas and goes out through the positive end-expiratory pressure valve, the gas can slowly flow out through the blocking of the silica gel valve plate 9, so that air can be slowly discharged through multiple combinations of lungs, the pressure can be set by adjusting the nut 1 according to different conditions of patients, the air discharge speed from the lungs is further controlled, and the problem that the existing hydraulic type negative end-expiratory pressure ventilator cannot effectively control the air discharge speed from the lungs is solved.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art in a specific case.

It is further intended that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation. The word "comprising" does not exclude the presence of other elements or steps than those listed in a process, method, article or apparatus that comprises an element. Standard parts used in the utility model can be purchased from the market, special-shaped parts can be customized according to the description of the specification and the drawings, and the specific connection modes of the parts can adopt conventional means such as mature bolts, rivets, welding and the like in the prior art, and the detailed description is omitted.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the above-described embodiments, and that the above-described embodiments and descriptions are only preferred embodiments of the present utility model, and are not intended to limit the utility model, and that various changes and modifications may be made therein without departing from the spirit and scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims (5)

1. Positive end-expiratory pressure valve, including nut (1) and be used for carrying out upper cover (4) of detachable connection with nut (1), its characterized in that, positive end-expiratory pressure valve still includes:

the upper end of the lower cover (10) is respectively communicated with the upper cover (4) and the screw cap (1), and the lower end of the lower cover (10) is communicated with the outside so as to input external air into a cavity formed by the lower cover (10), the upper cover (4) and the screw cap (1); and

the silica gel valve plate (9) is arranged between the lower cover (10) and the upper cover (4) and can move up and down along the axial line direction of the lower cover (10) so as to adjust the flow speed of external gas which is input into a cavity formed by the lower cover (10), the upper cover (4) and the screw cap (1) from the lower end of the lower cover (10).

2. The positive end-expiratory pressure valve according to claim 1, further comprising a mandrel sleeve (3), a mandrel cover (5) and a mandrel (8), wherein the mandrel sleeve (3) is arranged between the screw cap (1) and the upper cover (4), the mandrel cover (5) is arranged below the upper cover (4), the upper end of the mandrel cover (5) is connected with the mandrel sleeve (3), the upper end of the mandrel (8) is connected with the mandrel cover (5), and the lower end of the mandrel (8) is inserted on the silica gel valve plate (9).

3. Positive end-expiratory pressure valve according to claim 2, characterized in that it further comprises a bayonet (2) for connecting the screw cap (1) with the upper cover (4).

4. A positive end-expiratory pressure valve according to claim 3, further comprising a tower spring (6) and a spring (7), wherein the tower spring (6) is sleeved on the shaft core rod (8), the spring (7) is sleeved on the tower spring (6), and the upper end of the spring (7) is propped against the shaft core cover (5).

5. The positive end-expiratory pressure valve of claim 4 further comprising a graduated label (11).

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