Double-cavity type positive pressure oxygen bag and using method thereof

Abstract

The invention discloses a double-cavity type positive pressure oxygen bag and a using method thereof. A double-cavity type positive pressure oxygen bag comprises an oxygen bag base body, and the interior of the oxygen bag base body is divided into an oxygen supply cavity and a positive pressure pressurization cavity through a separation film; the oxygen supply cavity is connected with an input end used for being in butt joint with an oxygen source, and the input end is connected with a first control switch. The oxygen supply cavity is connected with an output end used for being in butt joint with the input end of a patient. The output end is connected with a barometer, a second control switch and a flow meter. The positive pressure pressurization cavity is connected with an extension pipe, and the extension pipe is in butt joint with the inflation balloon and the atmosphere through switching of a three-way valve. According to the oxygen bag, a traditional oxygen bag base body is divided into the two cavities, and then pressure supply of stable output gas in the oxygen supply cavity can be provided through the positive pressure pressurization cavity.

Description

TECHNICAL FIELD

[0001] The present application relates to a medical auxiliary, in particular, an oxygen bag base. BACKGROUND

[0002] The traditional oxygen bag uses natural rubber or low-density PVC material, and fills in oxygen and outputs oxygen through the same rubber tube. Since a single-chamber non-buffer design is adopted, the pressure in the bag is sharply reduced after the first pressing, and the output flow fluctuates greatly. According to the measurement, the initial flow can reach 15L / min, and after 5 seconds, it will be reduced to 5L / min. In summary, the traditional oxygen bag is difficult to provide stable oxygen flow. Moreover, the natural rubber and PVC material used in the traditional oxygen bag can generate >15kV static electricity through friction, which has the possibility of explosion. SUMMARY

[0003] In view of the problems existing in the prior art, the present application provides a double-cavity positive pressure oxygen bag and a use method thereof to solve at least one of the above technical problems.

[0004] In order to achieve the above purpose, the present application provides a double-cavity positive pressure oxygen bag, comprising an oxygen bag base, characterized in that the oxygen bag base is divided into an oxygen supply cavity and a positive pressure cavity by a separation membrane.

[0005] The oxygen supply cavity is connected with an input end for connecting an oxygen source, and the input end is connected with a first control switch.

[0006] The oxygen supply cavity is connected with an output end for connecting a patient input end, and the output end is connected with a pressure gauge, a second control switch and a flow meter.

[0007] The positive pressure cavity is connected with an extension tube, and the extension tube is connected with an inflation balloon and the atmosphere through a three-way valve.

[0008] The present application divides the traditional oxygen bag base into two cavities, and then provides stable pressure supply of the output gas in the oxygen supply cavity through the positive pressure cavity.

[0009] When the oxygen supply cavity supplies oxygen to the patient, the pressure in the oxygen supply cavity is gradually reduced and the oxygen bag base collapses as the oxygen is consumed during the emission of the gas in the oxygen supply cavity. At this time, the external air can be introduced into the positive pressure cavity through the inflation balloon, and the positive pressure cavity makes the oxygen bag base expand again to generate positive pressure, so as to press the oxygen supply cavity to realize stable oxygen output in the oxygen supply cavity. When the oxygen is used up, the three-way valve is opened to release the air in the positive pressure cavity, and the oxygen supply cavity is filled with oxygen again, so as to reciprocate.

[0010] Further preferably, the first control switch and the second control switch can be a manual switch or an electric switch.

[0011] Further preferably, the oxygen bag base is a cuboid bag.

[0012] The separation membrane is connected to opposite edges of the cuboid bag respectively.

[0013] Further preferably, the separation membrane is in close contact with the inner wall of the positive pressure cavity when the oxygen supply cavity is inflated.

[0014] The separation membrane is in close contact with the inner wall of the oxygen supply cavity when the positive pressure cavity is inflated.

[0015] Further preferably, the separation membrane is a flexible cover, and the connection between the separation membrane and the inner wall of the oxygen bag base is at the center dividing line inside the oxygen bag base.

[0016] The separation membrane is a split structure after the expansion of the cuboid bag.

[0017] Further preferably, the volume of the positive pressure cavity after expansion matches the volume of the oxygen supply cavity after expansion.

[0018] Further preferably, a bracket is further included, and the bracket is used to hang the oxygen bag base.

[0019] The oxygen supply cavity and the positive pressure cavity are arranged in front and back.

[0020] Further preferably, the material of the oxygen bag base is TPU material.

[0021] The cavity is ensured to have good ductility.

[0022] Further preferably, an extrusion device for extruding the inflatable balloon is further included.

[0023] The extrusion device includes two extrusion plates hingedly connected to each other and a driving mechanism for driving the two extrusion plates to move closer to each other and to separate.

[0024] The two extrusion plates are connected to inwardly extending limiting claw portions away from the hinged connection, the limiting claw portions of the two extrusion plates are staggered, and the two extrusion plates form a wrapping claw for wrapping the inflatable balloon.

[0025] The indirect extrusion of the inflatable balloon by the two extrusion plates is facilitated.

[0026] Further preferably, the driving mechanism is a telescopic rod.

[0027] Further preferably, a method for using a double-cavity positive pressure oxygen bag, first, open the first control switch, close the second control switch, input oxygen into the oxygen supply cavity, when the air pressure gauge is within the set range, close the first control switch, open the second control switch, and output oxygen from the output end;

[0028] When the oxygen supply cavity outputs gas, the three-way valve is in the state of connecting the inflatable balloon, the inflatable balloon introduces external air into the positive pressure cavity, and the positive pressure cavity compresses the oxygen supply cavity as the air increases, so that the oxygen output of the oxygen supply cavity is realized, and when the oxygen in the oxygen supply cavity is used up, the three-way valve is connected with the atmosphere, and the air in the positive pressure cavity is discharged.

[0029] Repeat the input of oxygen into the oxygen supply cavity.

[0030] Compared with the prior art, the beneficial effects of the present application are:

[0031] The present application can effectively solve the core pain points of the traditional oxygen bag substrate, such as large pressure fluctuation and unstable oxygen flow rate.

[0032] The present application is different from the traditional oxygen bag substrate, adopts a double-cavity structure, the oxygen supply cavity can store oxygen, and the positive pressure cavity can apply pressure through the inflatable balloon, so that the oxygen bag substrate always maintains positive pressure, and the patient can output continuous and stable oxygen supply, the oxygen flow can be adjusted according to the oxygen demand of different patients, adverse events caused by insufficient oxygen supply can be avoided, and the life safety of the patient can be ensured. BRIEF DESCRIPTION OF DRAWINGS

[0033] Figure 1 It is a local structure schematic view of embodiment 1 of the present application;

[0034] Figure 2 It is a structure schematic view of the oxygen supply cavity of embodiment 1 of the present application;

[0035] Figure 3 It is a structure schematic view of the positive pressure cavity of embodiment 1 of the present application;

[0036] Figure 4 It is a structure schematic view of the extrusion device of embodiment 2 of the present application;

[0037] Figure 5 It is a structure schematic view of the extrusion device of embodiment 2 of the present application; Figure 4

[0038] Figure 6

[0039] Figure 7 It is a structure schematic view of the extrusion device of embodiment 2 of the present application; Figure 6 ​​A structural diagram of a structure in an extrusion state.

[0040] In the figure: 1 is an oxygen supply cavity, 2 is a positive pressure cavity, 11 is an input end, 12 is an output end, 13 is a first control switch, 14 is a pressure gauge, 15 is a second control switch, 16 is a flow meter, 21 is a three-way valve, 22 is an inflatable balloon, 31 is an extrusion plate, and 32 is a limit pawl part. DETAILED DESCRIPTION

[0041] The application will be further described below with reference to the accompanying drawings.

[0042] Referring to Figures 1 to 3 Specific embodiment 1: a double-cavity positive pressure oxygen bag, comprising an oxygen bag base, the oxygen bag base is divided into an oxygen supply cavity 1 and a positive pressure cavity 2 by a separation membrane; the oxygen supply cavity 1 is connected with an input end 11 for docking an oxygen source, the input end 11 is connected with a first control switch 13; the oxygen supply cavity 1 is connected with an output end 12 for docking a patient input end 11, the output end 12 is connected with a pressure gauge 14, a second control switch 15 and a flow meter 16. The pressure gauge 14, the second control switch 15 and the flow meter 16 are sequentially arranged along the leading direction. The positive pressure cavity 2 is connected with an extension pipe, the extension pipe switches between docking an inflatable balloon 22 and the atmosphere through a three-way valve 21. The application divides the traditional oxygen bag base into two cavities, and then the stable pressure supply of the output gas in the oxygen supply cavity 1 can be provided through the positive pressure cavity 2. When the oxygen supply cavity 1 supplies oxygen to the patient, the pressure in the oxygen supply cavity 1 is gradually decreasing as the oxygen is consumed during the discharge of the gas in the oxygen supply cavity 1, and the oxygen bag base collapses at this time. At this time, the external air can be introduced into the positive pressure cavity 2 through the inflatable balloon 22, the positive pressure cavity 2 makes the oxygen bag base expand again as the air increases, thereby generating a positive pressure, so as to press the oxygen supply cavity 1 to achieve the stable oxygen output in the oxygen supply cavity 1. When the oxygen is used up, the air in the positive pressure cavity 2 is released by opening the three-way valve 21, and the oxygen in the oxygen supply cavity 1 is filled again, so as to reciprocate. The input end 11 and the output end 12 are arranged above and below, and are located at the lower end of the oxygen supply cavity 1.

[0043] The first control switch 13 and the second control switch 15 can be a manual switch or an electric switch.

[0044] The oxygen bag base is a cuboid bag body; the separation membrane is connected with opposite edges of the cuboid bag body respectively.

[0045] When the oxygen supply cavity 1 is inflated, the separation membrane is in close contact with the inner wall of the positive pressure cavity 2; when the positive pressure cavity 2 is inflated, the separation membrane is in close contact with the inner wall of the oxygen supply cavity 1.

[0046] The separation film is a flexible cover, and the connection between the separation film and the inner wall of the oxygen bag base is the center division line in the oxygen bag base.

[0047] The volume of the positive pressure cavity 2 after expansion matches the volume of the oxygen supply cavity 1 after expansion.

[0048] Further comprising a bracket for hanging the oxygen bag base; the oxygen supply cavity 1 and the positive pressure cavity 2 are arranged in front and back.

[0049] The material of the oxygen bag base is TPU material, which ensures good ductility of the cavity.

[0050] A method for using the double-cavity positive pressure oxygen bag, first, open the first control switch 13, close the second control switch 15, input oxygen into the oxygen supply cavity 1 through the input end 11, when the air pressure gauge 14 is within the set range, close the first control switch 13, open the second control switch 15, and output oxygen from the output end 12;

[0051] When the oxygen supply cavity outputs gas, the three-way valve 21 is in the state of docking the inflation balloon 22, the inflation balloon 22 introduces external air into the positive pressure cavity 2, and the positive pressure cavity 2 compresses the oxygen supply cavity 1 as the air increases, realizing the oxygen output of the oxygen supply cavity 1, when the oxygen in the oxygen supply cavity 1 is used up, the three-way valve 21 is communicated with the atmosphere, and the air in the positive pressure cavity 2 is discharged;

[0052] Repeat the input of oxygen into the oxygen supply cavity 1.

[0053] When the oxygen supply cavity outputs gas, the value of the flow meter is lower than the set range, and the extrusion speed of the inflation balloon is accelerated. That is, the inflation speed of the extrusion balloon to the positive pressure cavity is accelerated.

[0054] Referring to Figures 4 to 7 , in specific embodiment 2, on the basis of specific embodiment 1, further comprising an extrusion device for extruding the inflation balloon 22; the extrusion device comprises two extrusion plates 31 hinged to each other and a driving mechanism for driving the two extrusion plates 31 to move closer to each other and separate; the two extrusion plates 31 are connected with inwardly extending limit pawl portions 32 away from the hinge, the limit pawl portions 32 of the two extrusion plates 31 are staggered, and the two extrusion plates form a wrapping claw wrapping the inflation balloon. It is convenient to indirectly extrude the inflation balloon through the two extrusion plates. The driving mechanism is a telescopic rod. The extrusion device comprises a support frame, a hook for hanging the inflation balloon is installed on the support frame, and the hook is connected with the inflation balloon through an elastic pulling rope. The outer wall of the inflation balloon is extruded by the two extrusion plates.

[0055] Referring to Figure 4 and Figure 5, the extrusion plate 31 comprises a straight plate part, and two ends of the straight plate part are respectively connected with a bending part and a limiting claw part 32. The lower limiting claw part is arranged in a circular arc shape and longitudinally arranged. The circular arc claw parts of the two extrusion plates are arranged in an up-and-down staggered manner.

[0056] Referring to Figure 6 and Figure 6 , the center of the limiting claw part 32 is connected with the end of the straight plate part. A strip-shaped notch is formed on the straight plate part for avoiding the limiting claw part 32 on the other extrusion plate 31. That is, the area where the extrusion plate is connected with the limiting claw part is a comb-shaped structure, and the comb-shaped structure is connected with the limiting claw part.

[0057] The above is only the preferred embodiment of the present application, and it should be pointed out that for ordinary skilled in the art, without departing from the principles of the present application, a number of improvements and refinements can be made, and these improvements and refinements should be considered as the protection scope of the present application.

Claims

1. A dual-chamber positive pressure oxygen bag, comprising an oxygen bag substrate, characterized in that, The oxygen bag body is divided into an oxygen supply chamber and a positive pressure chamber by a separating membrane. The oxygen supply chamber is connected to an input terminal for connecting to an oxygen source, and the input terminal is connected to a first control switch; The oxygen supply chamber is connected to an output terminal for connecting to the patient's input terminal, and the output terminal is connected to a barometer, a second control switch, and a flow meter. The positive pressure chamber is connected to an extension tube, which switches between the inflatable balloon and the atmosphere via a three-way valve.

2. The dual-chamber positive pressure oxygen bag and its method of use according to claim 1, characterized in that: The first control switch and the second control switch are manual switches or electric switches.

3. The dual-chamber positive pressure oxygen bag and its method of use according to claim 1, characterized in that: The oxygen bag base is a rectangular bag. The separator membranes are connected to opposite edges of the cuboid bag body.

4. The dual-chamber positive pressure oxygen bag and its method of use according to claim 1, characterized in that: When the oxygen supply chamber is filled with air, the separator membrane is in close contact with the inner wall of the positive pressure chamber; When the positive pressure chamber is filled with air, the separator membrane is in close contact with the inner wall of the oxygen supply chamber.

5. The dual-chamber positive pressure oxygen bag and its method of use according to claim 4, characterized in that: The separator is a flexible cover, and the connection between the separator and the inner wall of the oxygen bag substrate is the center dividing line inside the oxygen bag substrate. The separator is the bisecting structure of the expanded cuboid bag.

6. The dual-chamber positive pressure oxygen bag and its method of use according to claim 5, characterized in that: The volume of the positive pressure chamber after expansion matches the volume of the oxygen supply chamber after expansion.

7. The dual-chamber positive pressure oxygen bag and its method of use according to claim 1, characterized in that: It also includes a support frame for suspending the oxygen bag base; The oxygen supply chamber and the positive pressure chamber are arranged in front of and behind each other.

8. The dual-chamber positive pressure oxygen bag and its method of use according to claim 1, characterized in that: The oxygen bag substrate is made of TPU material.

9. A dual-chamber positive pressure oxygen bag and its method of use according to claim 1, characterized in that: It also includes a compression device for compressing the inflatable bladder; The extrusion device includes two extrusion plates that are hinged together and a drive mechanism that moves the two extrusion plates closer together and separates them. Two extrusion plates are connected to inwardly extending limiting claws away from the hinge. The limiting claws of the two extrusion plates are staggered, and the two extrusion plates form a wrapping claw that wraps around the inflatable bladder.

10. The method of using a dual-chamber positive pressure oxygen bag according to claim 1, characterized in that, First, turn on the first control switch and turn off the second control switch. Input oxygen into the oxygen supply chamber at the input end. When the barometer is within the set range, turn off the first control switch and turn on the second control switch to output oxygen from the output end. When the oxygen supply chamber outputs gas, the three-way valve is in the state of docking with the inflatable balloon. The inflatable balloon introduces external air into the positive pressure chamber. As the air increases, the positive pressure chamber compresses the oxygen supply chamber, realizing the oxygen output of the oxygen supply chamber. When the oxygen in the oxygen supply chamber is used up, the three-way valve is connected to the atmosphere to discharge the air in the positive pressure chamber. Repeatedly supply oxygen to the oxygen supply chamber.

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