Flow stabilizing device of oxygen inhalation equipment

Abstract

The utility model relates to the technical field of medical instruments, and provides an oxygen inhalation equipment flow stabilizing device which comprises an output cylinder, a flow stabilizing device and a flow stabilizing device. The air inlet hole and the air outlet hole are positioned on the same side of the output cylinder; the piston is arranged in the output cylinder and slides in the output cylinder; the elastic piece is arranged in the output cylinder, and the two ends of the elastic piece are connected with the face, deviating from the air outlet hole, of the piston and the end, deviating from the air outlet hole, of the output cylinder correspondingly. The oxygen generator has the beneficial effects that the pressure fluctuation of oxygen can be counteracted by utilizing the elastic piece, the stability of oxygen output is ensured, and the treatment effect of a patient is further ensured.

Description

Technical Field

[0001] The present application relates to the technical field of medical devices, and in particular to a flow stabilizing device for oxygen inhalation equipment. Background Art

[0002] In some cases, hospitalized patients need oxygen inhalation. Medical staff usually connect the oxygen inhalation equipment to the oxygen source at the patient's bedside to supply oxygen to the patient. Currently, centralized oxygen supply is mostly used to provide oxygen to patients. Generally speaking, there is an oxygen supply center in the hospital, which is responsible for converting liquid oxygen into gas, which is then transported to the bedside through a pipeline network, and finally supplied to the patient through the oxygen inhalation equipment.

[0003] However, due to the long length of the oxygen pipeline network, there may be faulty or damaged locations, which will cause fluctuations in the gas pressure received by the oxygen inhalation equipment; in addition, in some cases, an increase in the number of patients receiving oxygen will also cause large pressure fluctuations in the oxygen pipeline network, affecting the stability of the gas source output at the patient's bedside. Unstable airflow will affect the amount of oxygen that the patient can inhale, thereby affecting the patient's treatment effect.

[0004] Therefore, the above-mentioned technical defects need to be changed urgently. Utility Model Content

[0005] In order to solve the technical problem in the prior art that oxygen output fluctuates and affects the patient's oxygen inhalation effect, the present application proposes a flow stabilizing device for oxygen inhalation equipment, which can eliminate the gas fluctuations generated when outputting oxygen and ensure the patient's treatment effect.

[0006] The flow stabilizing device of the oxygen breathing equipment comprises:

[0007] An output cylinder, one end of which is provided with an air outlet, and a side wall of which is provided with an air inlet; the air inlet and the air outlet are located on the same side of the output cylinder;

[0008] A piston is built into the output cylinder and slides in the output cylinder;

[0009] And an elastic member, which is built in the output tube, and two ends of the elastic member are respectively connected to a side of the piston away from the air outlet and an end of the output tube away from the air outlet.

[0010] Furthermore, a first chamber is formed in the output cylinder, the first chamber is located between the piston and the air outlet, and the air inlet is connected to the first chamber.

[0011] Furthermore, a second chamber is formed in the output tube, and the second chamber is located between a surface of the output tube facing the air outlet and the piston.

[0012] Furthermore, a sealing ring is arranged around the piston.

[0013] Furthermore, the flow stabilizing device of the oxygen breathing equipment also includes a buffer tube, which is used to reduce the gas flow rate, and the opening of the buffer tube is connected to the air inlet hole of the output tube.

[0014] Furthermore, a plurality of buffer plates are arranged in the buffer tube, and the plurality of buffer plates are arranged around the inner wall of the buffer tube.

[0015] Furthermore, the flow stabilizing device of the oxygen breathing equipment also includes a booster assembly, which is connected to one end of the buffer tube facing the output cylinder, and is used to increase the pressure of the gas entering the output cylinder.

[0016] Preferably, the boost assembly includes a drive motor and an impeller, and the impeller is built into the buffer tube.

[0017] Preferably, a diameter reduction portion is provided at the outlet of the buffer tube.

[0018] Preferably, the flow stabilizing device of the oxygen inhalation equipment further comprises an air pressure sensor, which is connected to the air outlet of the output tube, and is used to measure the air pressure at the output outlet.

[0019] The utility model is beneficial in that the gas in the output tube needs to squeeze the elastic member to compress the elastic member before being delivered to the patient, so that the elastic member can be used to eliminate the fluctuation of the airflow; when the oxygen pressure is temporarily reduced, the elastic member will relax and compress the oxygen, thereby increasing the pressure of the oxygen output in the output tube; when the oxygen pressure output by the gas source is temporarily too high, the oxygen entering the output tube will compress the elastic member, and then be output from the output tube, so that part of the gas pressure will be consumed in squeezing the elastic member, thereby reducing the output pressure of the gas and maintaining the pressure at a predetermined value. The booster component can increase the pressure of the gas entering the output tube, thereby increasing the gas output pressure in the output tube, so that when more patients in the hospital are breathing oxygen at the same time and the oxygen pressure provided by the bedside oxygen source is low, oxygen with a higher pressure can still be output, thereby meeting the patient's oxygen breathing needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 This is a structural principle diagram of a flow stabilizing device for oxygen inhalation equipment provided in this embodiment;

[0022] Figure 2 This is a working principle diagram of a flow stabilizing device for oxygen inhalation equipment provided in this embodiment to offset the increased air pressure;

[0023] Figure 3 This is a working principle diagram of a flow stabilizing device for oxygen inhalation equipment provided in this embodiment to compensate for reduced air pressure;

[0024] Figure 4 is a structural schematic diagram of a flow stabilizing device for oxygen inhalation equipment provided in this embodiment;

[0025] Figure 5 It is a schematic diagram of the use of a flow stabilizing device for oxygen inhalation equipment provided in a certain embodiment.

[0026] In the figure: 10, output tube; 11, air inlet; 12, air outlet; 13, piston; 14, elastic member; 15, first chamber; 16, second chamber; 20, buffer tube; 21, buffer plate; 30, boost assembly; 31, drive motor; 32, impeller; 40, air pressure sensor. DETAILED DESCRIPTION

[0027] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

[0028] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise specified, "multiple" means two or more.

[0029] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0030] In addition, the technical features involved in the different embodiments of the utility model described above can be combined with each other as long as they do not conflict with each other.

[0031] It should be pointed out that Figure 2 and Figure 3 The arrow in denoted the moving direction of the piston 13 .

[0032] At present, hospitals generally have a central oxygen supply room, which uses centralized oxygen supply to provide oxygen to patients. In the oxygen supply room, liquid oxygen needs to be converted into gaseous oxygen and transported to the oxygen connector at the head of the patient's bed. The oxygen in the central oxygen supply room needs to be transported to the oxygen connector through a pipeline network. In the above process, due to the long pipeline path, there may be faults in the pipeline, which may cause the output gas pressure to be unstable and fluctuate, affecting the patient's treatment effect. In addition, there will be pressure fluctuations when liquid oxygen is converted into gaseous oxygen. The above fluctuations will also cause fluctuations in the oxygen output at the oxygen connector, which will also affect the patient's treatment effect.

[0033] Therefore, in order to eliminate oxygen pressure fluctuations when a patient inhales oxygen, the present application proposes a flow stabilizing device for oxygen inhalation equipment, which can eliminate oxygen pressure fluctuations by utilizing an elastic member 14 disposed therein.

[0034] See also Figure 1 and Figure 4The oxygen inhalation equipment flow stabilizing device proposed in the present application includes an output tube 10, a piston 13 and an elastic member 14. The output tube 10 is roughly cylindrical, and the gas pressure regulation can be achieved inside it. The output tube 10 in the present application should be made of a material that meets medical requirements. In order to facilitate the user to observe the situation inside the output tube 10, the output tube 10 should preferably be made of a transparent material. An air inlet 11 and an air outlet 12 are provided on the output tube 10. The oxygen output from the oxygen connector, that is, the gas source, needs to pass through the output tube 10 to supply oxygen to the patient. Among them, the air inlet 11 is arranged on the side wall of the output tube 10, and the air outlet 12 is arranged on the end face of the output tube 10, that is, the air outlet 12 is arranged at one end of the output tube 10, wherein the air inlet 11 and the air outlet 12 are located on the same side of the output tube 10. The piston 13 is disposed in the output tube 10 and slides in the output tube 10. The cross-sectional area of ​​the piston 13 is the same as that of the output tube 10, so that the output tube 10 can be isolated in the output tube 10, so that the gas in the output tube 10 located on the side close to the gas outlet 12 cannot enter the other side of the output tube 10 through the piston 13. In addition, an elastic member 14 is also disposed in the output tube 10, and the two ends of the elastic member 14 are respectively connected to a side of the piston 13 away from the gas outlet 12 and an end of the output tube 10 away from the gas outlet 12. The function of the elastic member 14 is to adjust the output gas pressure of the output tube 10.

[0035] For the convenience of description, the output tube 10 is now defined as the initial state when no gas is filled, and the output tube 10 is defined as the working state when gas is filled. The working principle of the utility model is to use the elastic deformation of the elastic member 14 to offset the pressure fluctuation of the gas. In the initial state, the elastic member 14 is in a diastolic state, at which time the piston 13 should be located on the side of the output tube 10 close to the air outlet 12, and the piston 13 should not block the air inlet 11 and the air outlet 12. When the patient needs to breathe oxygen, oxygen will be filled into the output tube 10, specifically, at the end of the output tube 10 away from the elastic member 14. It should be pointed out that the elastic member 14 should always be in a compressed state in the working state. The oxygen entering the output tube 10 will not only be discharged from the air outlet 12, but part of the gas will also squeeze the piston 13 so that the piston 13 slides toward the elastic member 14 until the forces on both sides of the piston 13 are balanced, the piston 13 will stop moving, and the output tube 10 at this time will be able to stably output oxygen to ensure the treatment effect of the patient. Specifically, the side of the piston 13 facing the elastic member 14 will be subjected to the elastic force from the elastic member 14 and the pressure of the compressed gas; correspondingly, the side of the piston 13 facing the air outlet 12 will only be subjected to the pressure from the oxygen. When the forces on both sides of the piston 13 are balanced, the output cylinder 10 is in a state where it can stably output oxygen.

[0036] Due to the long pipeline and the possible oxygen pressure fluctuation when the liquid oxygen is converted into gaseous oxygen, the elastic member 14 in the present application will be used to offset the above pressure fluctuation. The following will explain the temporary increase and decrease of the oxygen pressure. For the convenience of description, the chamber in the output tube 10 is now divided into a first chamber 15 and a second chamber 16 according to the piston 13. Specifically, the output tube 10 is formed with a first chamber 15 and a second chamber 16, wherein the first chamber 15 is located between the piston 13 and the air outlet 12, and the air inlet 11 is connected to the first chamber 15, and oxygen will enter the first chamber 15 through the air inlet 11; the second chamber 16 is located between the side of the output tube 10 facing the air outlet 12 and the piston 13, and the elastic member 14 is located in the second chamber 16.

[0037] See also Figure 2 When the pressure of oxygen suddenly increases, the pressure of oxygen entering the first chamber 15 will suddenly increase, which will cause the oxygen in the first chamber 15 to further squeeze the piston 13 and the elastic member 14, so that the increased pressure of oxygen will be converted into the elastic potential energy of the elastic member 14 and the elastic potential energy of the gas in the second chamber 16. In this way, the suddenly increased pressure can be offset by the elastic member 14.

[0038] See also Figure 3 When the pressure of oxygen suddenly decreases, the pressure of oxygen entering the first chamber 15 will suddenly decrease. At this time, the elastic potential energy will push the piston 13 to move toward the air outlet 12. At this time, the oxygen in the first chamber 15 will be compressed, thereby increasing the oxygen pressure in the first chamber 15. In this way, the pressure of oxygen output from the first chamber 15 can be increased, thereby realizing the compensation of oxygen pressure by the elastic member 14.

[0039] In this way, the present application offsets the sudden fluctuation of oxygen pressure by setting the elastic member 14, thereby ensuring the stability of oxygen output pressure and further ensuring the treatment effect of the patient.

[0040] In the present application, the air inlet 11 will be connected to the oxygen connector at the patient's bedside, and the air outlet 12 will be connected to the oxygen supply tube.

[0041] Furthermore, in order to improve the airtightness of the piston 13 and prevent the gas in the first chamber 15 from entering the second chamber 16 and affecting the adjustment ability of the output cylinder 10, a sealing ring is arranged around the piston 13. The sealing ring is generally made of rubber. When the piston 13 is assembled into the output cylinder 10, the sealing ring can block the gap between the piston 13 and the output cylinder 10, thereby improving the airtightness of the piston 13.

[0042] Furthermore, in order to further eliminate the pressure fluctuation of the gas, the flow stabilization device of the oxygen breathing equipment also includes a buffer tube 20, which is used to reduce the gas flow rate, and the opening of the buffer tube 20 is connected to the air inlet 11 of the output tube 10. The buffer tube 20 in the present application is generally circular, and its two ends are respectively connected to the oxygen connector, that is, the gas source, and the air inlet 11. After entering the buffer tube 20, the flow rate of the gas will slow down, so that the influence of the pressure at the oxygen connector will be reduced. The buffer tube 20 mainly reduces the pressure fluctuation of oxygen by reducing the flow rate of the gas. In this way, the pressure of oxygen entering the output tube 10 will become more stable.

[0043] In order to further improve the buffering effect of the buffer tube 20, a plurality of buffer plates 21 are arranged in the buffer tube 20. In this embodiment, the plurality of buffer plates 21 are arranged around the inner wall of the buffer tube 20. Therefore, the buffer plates 21 in this embodiment are annular. The buffer plates 21 can increase the pressure of the gas, thereby further improving the buffering effect of the buffer tube 20. Of course, the form of the buffer plates 21 is not limited to annular, and can also be in the shape of arc, square plate, etc.

[0044] In addition to the fluctuations caused by the output of oxygen from the central oxygen supply room, when a large number of patients are breathing oxygen at the same time, the large number of oxygen connectors will result in insufficient oxygen flow to each oxygen connector, which will also affect the therapeutic effect of the patient's oxygen inhalation.

[0045] In order to further improve the regulating ability of the entire flow stabilizing device, the flow stabilizing device for oxygen inhalation equipment proposed in the present application further includes a booster assembly 30, which is connected to one end of the buffer tube 20 facing the output cylinder 10, and is used to increase the pressure of the gas entering the output cylinder 10. The booster assembly 30 can increase the amount of oxygen entering the output tube from the buffer tube 20, thereby increasing the output gas pressure of the output tube to ensure that the patient can obtain sufficient oxygen.

[0046] Furthermore, the boost assembly 30 includes a drive motor 31 and an impeller 32. The impeller 32 is built into the buffer tube 20, and the drive motor 31 is attached to the outside of the buffer tube 20. The drive motor 31 drives the impeller 32 to rotate. Its working principle is similar to that of a turbocharger, and the rotation of the impeller 32 is used to increase the amount of gas entering the output pipe.

[0047] In order to further increase the output pressure of the buffer tube 20 , in some embodiments, a diameter reduction portion is provided at the outlet of the buffer tube 20 .

[0048] Preferably, in some embodiments, the flow stabilization device of the oxygen inhalation equipment also includes an air pressure sensor 40, which is connected to the air outlet 12 of the output tube 10. The air pressure sensor 40 is used to measure the air pressure output at the air outlet 12. In addition, the air pressure sensor 40 can also be connected to an electronic display screen to ensure that patients and medical staff can know the size of the output air flow.

[0049] In some embodiments, see Figure 5 In this embodiment, the oxygen breathing equipment flow stabilizing device is not provided with an air pressure sensor 40, but is directly connected to an existing oxygen pressure gauge. In this way, the oxygen breathing equipment flow stabilizing device can be directly used as an auxiliary accessory, and this solution can make full use of existing equipment and effectively reduce the use cost.

[0050] In summary, the gas in the output tube 10 needs to squeeze the elastic member 14 before being delivered to the patient so that the elastic member 14 is compressed, so that the elastic member 14 can be used to eliminate the fluctuation of the airflow; when the oxygen pressure is temporarily reduced, the elastic member 14 will relax and compress the oxygen, thereby increasing the pressure of the oxygen output in the output tube 10, and when the oxygen pressure output by the gas source is temporarily too large, the oxygen entering the output tube 10 will compress the elastic member 14, and then be output from the output tube 10, so that part of the gas pressure will be consumed in squeezing the elastic member 14, thereby reducing the output pressure of the gas and maintaining the pressure at a predetermined value. The booster assembly 30 can increase the pressure of the gas entering the output tube 10, thereby increasing the gas output pressure in the output tube 10, so that when more patients in the hospital are breathing oxygen at the same time and the oxygen pressure provided by the bedside oxygen source is low, oxygen with a higher pressure can still be output, thereby meeting the patient's oxygen breathing needs.

[0051] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention of the utility model.

Claims

1. A flow stabilizing device for oxygen inhalation equipment, characterized in that: include: An output tube, wherein an air outlet is provided at one end of the output tube, and an air inlet is formed on the side wall of the output tube; the air inlet and the air outlet are located on the same side of the output tube; A piston, the piston is built into the output cylinder and slides in the output cylinder; and an elastic member, wherein the elastic member is built in the output tube, and two ends of the elastic member are respectively connected to a side of the piston away from the air outlet and an end of the output tube away from the air outlet.

2. The flow stabilizing device for oxygen breathing equipment according to claim 1, characterized in that: A first chamber is formed in the output cylinder, the first chamber is located between the piston and the air outlet, and the air inlet is connected to the first chamber.

3. The flow stabilizing device for oxygen breathing equipment according to claim 2, characterized in that: A second chamber is also formed in the output tube, and the second chamber is located between a side of the output tube facing the air outlet and the piston.

4. The flow stabilizing device for oxygen breathing equipment according to claim 1, characterized in that: A sealing ring is arranged around the piston.

5. The flow stabilizing device for oxygen breathing equipment according to claim 1, characterized in that: The oxygen breathing equipment flow stabilizing device further comprises a buffer tube, which is used to reduce the gas flow rate, and the opening of the buffer tube is connected to the air inlet hole of the output tube.

6. The flow stabilizing device for oxygen breathing equipment according to claim 5, characterized in that: A plurality of buffer plates are arranged in the buffer tube, and the plurality of buffer plates are arranged around the inner wall of the buffer tube.

7. The flow stabilizing device for oxygen breathing equipment according to claim 6, characterized in that: The oxygen breathing equipment flow stabilizing device further comprises a pressure boosting component, which is connected to one end of the buffer tube facing the output cylinder, and is used to increase the pressure of the gas entering the output cylinder.

8. The flow stabilizing device for oxygen breathing equipment according to claim 7, characterized in that: The boost assembly includes a driving motor and an impeller, and the impeller is built in the buffer tube.

9. The flow stabilizing device for oxygen breathing equipment according to claim 5, characterized in that: A diameter reduction portion is provided at the outlet of the buffer tube.

10. The flow stabilizing device for oxygen breathing equipment according to claim 1, characterized in that: The oxygen inhalation equipment flow stabilizing device further comprises an air pressure sensor, which is connected to the air outlet of the output tube and is used to measure the air pressure at the air outlet.

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