Gas path stabilizing device

Abstract

The utility model discloses a gas circuit stabilizing device, which relates to the technical field of medical instruments, and comprises a shell with a gas inlet and a gas outlet respectively arranged at two axial ends and partition plates arranged in the shell and provided with arc-shaped through grooves, a gap is reserved between the adjacent partition plates, and the arc-shaped through grooves of the adjacent partition plates are not completely overlapped. Through the arrangement of the partition plates, when airflow passes through, the track is similar to a sinusoidal waveform, the airflow in the whole channel is in smooth transition and has no sharp size change or sharp turning, the stability of the airflow is improved, and interference of fluctuation of the airflow in the environment on the equipment can be avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical equipment technical field especially, and it is a kind of gas path stabilizing device. BACKGROUND

[0002] Ventilator is a kind of medical equipment that can replace, control or change normal physiological breathing of person, enhance lung ventilation, improve respiratory function, reduce respiratory work consumption and save heart reserve capacity.As the key component of ventilator, air-oxygen mixer can regulate oxygen concentration according to volume ratio of air and oxygen, cooperate to obtain ideal oxygen concentration, prevent oxygen concentration complication caused by too high oxygen concentration and oxygen deficiency caused by too low oxygen concentration, and provide safe and reasonable oxygen supply environment for patients.Air-oxygen mixing needs to adjust the pressure of air and oxygen first, so that the pressure of air and oxygen reaches balance, and then control regulating valve to adjust the output flow of air and oxygen to obtain ideal oxygen concentration output after stable pressure and flow are detected by sensor.

[0003] However, when external air fluctuates, it will affect the pressure of air input into air-oxygen mixer, so that the pressure of air and oxygen in air-oxygen mixer is not easy to reach balance, and further affect the detection of sensor and medical effect. CONTENT OF UTILITY MODEL

[0004] The utility model aims at providing a kind of gas path stabilizing device, which can improve the stability of airflow.

[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a kind of gas path stabilizing device, including the shell with the air inlet and the air outlet respectively opened in the axial two ends and the baffle with the arc-shaped through slot being set in the shell, spacing is left between adjacent baffles, and the arc-shaped through slot of adjacent baffles does not completely coincide.

[0006] The technical principle of the utility model is as follows: by the setting of baffle, when airflow passes through arc-shaped through slot, the trajectory is approximately sinusoidal, airflow is smoothly transitioned in the whole passage, there is no sharp change in size and no sharp turning, the stability of airflow is improved, and the disturbance of airflow fluctuation in environment to the equipment can be avoided.

[0007] Further, the rectifier ring is coaxially and spaced apart from the baffle in the shell, and the rectifier ring and the baffle are mutually attached.

[0008] Further, the limit protrusion is arranged on the inner wall of the shell, and the outer periphery of the rectifier ring and the baffle is provided with the notch matched with the limit protrusion.

[0009] Further, the number of limit protrusions and notches is not less than 2.

[0010] Further, the included angle between every two adjacent limiting protrusions is equal.

[0011] Further, the side wall of the shell is provided with a support column, and the support column is provided with a buffer cap.

[0012] Further, the air inlet of the shell is provided with a filter element, and the filter element has good biocompatibility.

[0013] The beneficial effects of the present application are:

[0014] 1. By arranging the partition plate, the airflow can be stabilized, and the disturbance of the airflow in the environment to the device can be avoided.

[0015] 2. By arranging the flow regulating ring, the spacing between adjacent partition plates can be adjusted to the same value, which can further enhance the stability of the airflow through the partition plate, and the flow regulating ring can also fix the limiting partition plate.

[0016] 3. By arranging the limiting protrusion and the notch, the position of the flow regulating ring and the partition plate can be fixed, and the stability of the flow regulating ring and the partition plate installed in the shell can be ensured.

[0017] 4. The arc-shaped through slot can be rotated to be located in different directions, so that the size of the airflow passage can be adjusted, and the stability of the airflow can be controlled. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a sectional view of the present application;

[0019] Figure 2 is a schematic view of the shell in the present application;

[0020] Figure 3 is a schematic view of the flow regulating ring in the present application;

[0021] Figure 4 is a schematic view of the partition plate in the present application.

[0022] In the above drawings:

[0023] 1. Shell; 101, air inlet; 102, air outlet; 103, limiting protrusion; 104, support column; 105, buffer cap;

[0024] 2. Flow regulating ring; 3, partition plate; 301, arc-shaped through slot; 4, notch; 5, filter element. DETAILED DESCRIPTION

[0025] With reference to the accompanying drawings, the technical solutions in the embodiments of the present application will be clearly and completely described below, obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments; the structures described in various embodiments can be freely combined without structural or principle conflicts.

[0026] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting", "fixing" and the like should be understood in a broad sense, for example, can be fixed connection, can also be detachable connection, or integrated; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the communication between two elements or the interaction relationship between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0027] In the description of the present application, it should be pointed out that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "inner", "outer" and the like is based on the orientation or position relationship shown in the drawings, or the orientation or position relationship commonly used when the product of the present application is used, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second" and the like are only used for differentiation, and cannot be understood as indicating or implying relative importance.

[0028] Some embodiments of the present application will be described below in conjunction with the accompanying drawings:

[0029] As shown in Figures 1-4 The present application provides a gas path stabilizing device, which comprises a shell 1 with an air inlet 101 and an air outlet 102 at the two axial ends, and a partition plate 3 provided in the shell 1 and having an arc-shaped through slot 301.

[0030] By arranging the partition plate 3, when the airflow passes through, the trajectory is approximately sinusoidal, the airflow in the entire passage is smoothly transitioned, there is no sharp change in size, and there is no sharp turning, which improves the stability of the airflow and can avoid the interference of the fluctuation of the airflow in the environment on the device.

[0031] When the partition plate 3 is installed, the partition plate 3 is rotated to adjust the size of the air flow passage by locating the arc-shaped through groove 301 in different directions. For the convenience of adjustment, the arc-shaped through groove 301 is preferably centered on the center of the partition plate 3. When the number of the partition plates 3 is 2, the arc-shaped through grooves 301 of the adjacent partition plates 3 are symmetrically arranged along the horizontal center surface. When the number of the partition plates 3 is 3, the included angle between the arc-shaped through grooves 301 of the adjacent partition plates 3 is 120°. When the number of the partition plates 3 is 4, the included angle between the arc-shaped through grooves 301 of the adjacent partition plates 3 is 90°. In this way, the sum of the included angles is 360°, and the more the number of the partition plates 3, the better the air flow regulation effect. The number of the partition plates 3 is 3, and thus the included angle between the arc-shaped through grooves 301 of the adjacent partition plates 3 is 120°.

[0032] Further, the shell 1 is further provided with a flow regulating ring 2 coaxially and spaced apart from the partition plate 3, and the flow regulating ring 2 and the partition plate 3 are attached to each other.

[0033] The number of the flow regulating ring 2 and the partition plate 3 is selected according to the length of the shell 1. According to different actual use standards, the flow regulating ring 2 is used to adjust the spacing between the adjacent partition plates 3 and to limit and fix the partition plate 3. When the spacing or the number of the partition plates needs to be adjusted, the flow regulating ring 2 is removed. The flow regulating ring 2 and the partition plate 3 can be spaced apart or two, three, four or more flow regulating rings 2 can be inserted between every two partition plates 3. Preferably, two flow regulating rings 2 are inserted between every two partition plates 3. In addition, according to different actual use standards, the thickness of the partition plate 3 and the flow regulating ring 2 can be changed to adjust the number of the partition plate 3 and the flow regulating ring 2 placed in the shell 1.

[0034] The more the number of the flow regulating ring 2 and the partition plate 3, the better the air flow regulation effect. When the number of the flow regulating ring 2 and the partition plate 3 is up to 4, the best air flow regulation effect is achieved. The number of the flow regulating ring 2 is 2-4. When the number of the flow regulating ring 2 is less than 2 between every two partition plates 3, the air flow still has a sharp turn, and the air flow regulation effect is not good. When the number of the flow regulating ring 2 is greater than 4, the air flow regulation effect of the partition plate 3 is not good. The number of the partition plate 3 is greater than 2.

[0035] Further, as shown in Figure 2 the inner wall of the shell 1 is provided with a limiting protrusion 103, and the outer periphery of the flow regulating ring 2 and the partition plate 3 is provided with a notch 4 matched with the limiting protrusion 103. The number of the limiting protrusion 103 and the notch 4 is not less than 2, and the included angle between every two adjacent limiting protrusions 103 is equal

[0036] Through the arrangement of the limiting protrusion 103 and the notch 4, the stability of the flow regulating ring 2 and the partition plate 3 installed in the shell 1 can be ensured, and the shaking or rotation of the flow regulating ring 2 or the partition plate 3 caused by the air flow can be avoided, thereby affecting the stability of the air flow.

[0037] The number of the limiting protrusions 103 and the gaps 4 can be 2, 3, 4, 5, etc. The more the number of the limiting protrusions 103 and the gaps 4, the more precise the adjustment of the size of the airflow passage. The number of the limiting protrusions 103 and the gaps 4 is preferably 3, which can ensure the limiting of the rectifier ring 2 and the partition plate 3, and has certain adjustment capacity, and is convenient for manufacturing. The equal angles can facilitate the installation and angle adjustment of the partition plate 3 and the rectifier ring 2.

[0038] Further, as shown in Figure 2 The side wall of the shell 1 is provided with a support column 104, and the support column 104 is provided with a buffer cap 105.

[0039] The support column 104 is integrally formed with the shell 1. When the airflow enters the shell 1, there is a certain impact force. The buffer cap 105 on the support column 104 can reduce the shaking of the product during use.

[0040] Further, as shown in Figure 1 The air inlet 101 of the shell 1 is provided with a filter 5, and the filter 5 has good biocompatibility.

[0041] The material of the filter 5 is expanded PTFE, which is a new type of medical polymer material, and has elasticity and flexibility. The filter 5 has a network structure formed by connecting microfibers. The microfibers form countless pores, so that the expanded PTFE can be bent arbitrarily (over 360°). The filter 5 has good blood compatibility, is resistant to biological aging, and is used for manufacturing medical products such as artificial blood vessels and heart patches. From the medical point of view, the filter 5 is the most ideal biological tissue substitute. Due to its good biocompatibility and unique microporous structure, the filter 5 has no toxicity, carcinogenicity, and sensitization side effects. In addition, human tissue cells and blood vessels can grow into the micropores of the filter 5 to form tissue connections. The filter 5 includes a coarse filter and a fine filter. Dust, water vapor, and the like in the atmosphere can be filtered through the coarse filter and the fine filter. The debris generated by accidental collision of the coarse filter and the fine filter can be absorbed and dissolved by the human body after being inhaled by the human body, which can greatly improve the safety of the product.

Claims

1. An air path stabilizing device characterized by comprising: The shell (1) is provided with an air inlet (101) and an air outlet (102) at the two axial ends respectively, and the baffle (3) is provided with an arc-shaped through slot (301) in the shell (1), the adjacent baffles (3) are spaced, and the arc-shaped through slots (301) of the adjacent baffles (3) do not completely coincide.

2. The air path stabilizing device according to claim 1, characterized by The shell (1) is further provided with a rectifier ring (2) coaxially and spaced apart from the baffle (3), and the rectifier ring (2) and the baffle (3) are mutually attached.

3. The air path stabilizing device according to claim 1 or 2, characterized by The inner wall of the shell (1) is provided with a limiting protrusion (103), and the outer periphery of the rectifier ring (2) and the baffle (3) is provided with a notch (4) matched with the limiting protrusion (103).

4. The air path stabilizing device according to claim 3, characterized by The number of the limiting protrusion (103) and the notch (4) is not less than 2.

5. The air path stabilizing device according to claim 4, characterized by The included angle between the two adjacent limiting protrusions (103) is equal.

6. An air path stabilizing device according to claim 1, 2, 4 or 5, characterized by The side wall of the shell (1) is provided with a supporting column (104), and the supporting column (104) is provided with a buffer cap (105).

7. The air path stabilizing device according to claim 3, characterized by The side wall of the shell (1) is provided with a supporting column (104), and the supporting column (104) is provided with a buffer cap (105).

8. A gas circuit stabilizing device according to claim 1, 2, 4, 5 or 7, characterized in that The air inlet (101) of the shell (1) is provided with a filter (5), and the filter (5) has good biocompatibility.

9. The air path stabilizing device according to claim 3, characterized by The air inlet (101) of the shell (1) is provided with a filter (5), and the filter (5) has good biocompatibility.

10. The air path stabilizing device according to claim 6, characterized by The air inlet (101) of the shell (1) is provided with a filter (5), and the filter (5) has good biocompatibility.

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