Breathing machine gas circuit easy to disassemble and assemble

Abstract

The utility model belongs to the technical field of medical equipment, and particularly discloses a breathing machine gas circuit easy to disassemble and assemble, which comprises a pipeline and at least two groups of connecting sleeves, the pipeline comprises a gas source pipeline, an air and oxygen mixing pipeline and an air and oxygen output pipeline which are sequentially arranged from an input end to an output end, and the pipeline consists of pipeline parts. The pipelines or the pipeline parts are connected or separated through connecting sleeves. According to the utility model, the connecting sleeve is matched with the pipeline or pipeline parts, so that defective parts are disconnected from the original pipeline, and enough defective part moving space is reserved, so that the defective parts are convenient to replace, and the disassembly and assembly efficiency is improved. The connecting sleeve 4 is in threaded connection, and the threaded connection has axial movement and good axial compensation adjusting capacity, so that the negative error of the axial length between pipelines can be compensated, the probability of assembling and correcting or supplementary machining or remachining of the gas circuit can be reduced, and the assembling efficiency of the gas circuit of the breathing machine is improved.

Description

Technical Field

[0001] This utility model belongs to the field of medical equipment technology, specifically relating to an easily detachable ventilator airway. Background Technology

[0002] A ventilator is a device that can replace, control, or alter a person's normal physiological breathing, increase lung ventilation, improve respiratory function, reduce respiratory energy expenditure, and conserve cardiac reserve. As the air supply system of a ventilator, the airway system typically consists of components such as air and oxygen intake parts, flow meters, sensors, and tubing. The tubing is assembled using fit-fit or snap-fit ​​methods, and all components are assembled within the limited space of the ventilator, resulting in a compact airway system.

[0003] The above assembly method makes the existing gas circuit system inconvenient to disassemble and assemble. When a component of the gas circuit system malfunctions and needs to be replaced, it must be disassembled from the pipeline output end to the faulty component. After replacing the faulty component, the disassembled component and pipeline must be reassembled one by one, which is inefficient. Utility Model Content

[0004] The purpose of this invention is to provide an easily disassembled ventilator airway that disconnects faulty components from other parts of the airway, thereby enabling quick replacement of faulty components and improving disassembly and assembly efficiency.

[0005] The purpose of this utility model is achieved through the following technical solution: an easily detachable and assembleable ventilator airway, comprising:

[0006] The pipeline includes at least two sets of connecting sleeves. The pipeline consists of a gas source pipeline, an air-oxygen mixing pipeline, and an air-oxygen output pipeline arranged sequentially from the input end to the output end. The pipeline is composed of various pipeline components, and the pipelines or pipeline components are connected or separated by connecting sleeves.

[0007] Preferably, the connecting sleeve is provided in two sets. One set of connecting sleeves connects or separates the air-oxygen mixing pipe from the air-oxygen output pipe through threaded engagement; the other set of connecting sleeves connects or separates the air-oxygen mixing pipe from the gas source pipe through threaded engagement.

[0008] Preferably, the outer surface of one end of the air-oxygen mixing pipe is provided with a first external thread; the outer surface of the other end is provided with a second external thread; the outer surface of the air-oxygen output pipe near the air-oxygen mixing pipe is provided with a third external thread; the outer surface of the gas source pipe near the air-oxygen mixing pipe is provided with a fourth external thread; and the inner wall of the connecting sleeve is provided with an axially penetrating internal thread.

[0009] Preferably, the internal thread of a set of connecting sleeves is divided into two parts, one part mates with a first external thread, and the other part mates with a third external thread; and / or

[0010] The internal thread of the other set of connecting sleeves is divided into two parts: one part mates with the second external thread, and the other part mates with the fourth external thread.

[0011] Preferably, the outer diameter of the first external thread is equal to the outer diameter of the third external thread, and / or

[0012] The outer diameter of the second external thread is equal to the outer diameter of the fourth external thread.

[0013] Preferably, a sealing ring is provided between the pitches of the first external thread, the second external thread, the third external thread and the fourth external thread.

[0014] Preferably, the length of the first external thread is greater than the sum of the lengths of the first set of connecting sleeves and the length of the third external thread; and / or

[0015] The length of the second external thread is greater than the sum of the sleeve length of the other set of connections and the length of the fourth external thread.

[0016] Preferably, the outer surface of the connecting sleeve is provided with anti-slip grooves.

[0017] Preferably, one set of connecting sleeves has a set of first assembly ears on its outer side.

[0018] Due to the adoption of the above technical solution, this utility model has the following advantages:

[0019] By using connecting sleeves to connect with the pipes or pipe components in the ventilator circuit, faulty components can be disconnected from the original circuit, while leaving sufficient space for movement of the faulty components. This facilitates replacement of faulty components and avoids the need to disassemble each component from the output end of the air-oxygen output pipe to replace faulty components when a ventilator circuit malfunctions, thus improving efficiency. Attached Figure Description

[0020] To more clearly illustrate the specific embodiments of this utility model, the accompanying drawings used in the specific embodiments will be briefly described below. In all the drawings, the elements or parts are not necessarily drawn to scale.

[0021] Figure 1 This is a schematic diagram of the airway structure of an easily disassembled ventilator according to the present invention;

[0022] Figure 2 This is a schematic diagram of the assembly structure of the ventilator's airway.

[0023] Figure 3 This is a schematic diagram of a snap-fit ​​pipe clamp structure.

[0024] Figure label:

[0025] 1-Air-oxygen mixing pipe, 11-First external thread, 111-Sealing ring, 12-Second external thread, 13-Second assembly lug.

[0026] 2-Air / oxygen output pipe, 21-Third external thread,

[0027] 3-Gas source pipeline, 31-Fourth external thread, 32-Air pipeline, 33-Oxygen supply pipeline, 34-High-pressure proportional valve.

[0028] 4-Connecting sleeve, 41-Internal thread, 42-Anti-slip groove, 43-First assembly ear, 44-Snap-on pipe clamp, 441-Upper body, 442-Lower body, 443-Sealing gasket, 444-Clip hole, 445-Snap buckle. Detailed Implementation

[0029] Please see Figure 1 and Figure 2 A ventilator airway that is easy to disassemble and assemble includes:

[0030] The ventilator includes a gas source pipe 3, an air-oxygen mixing pipe 1, and an air-oxygen output pipe 2, arranged sequentially from the input end to the output end. The pipe is composed of various pipe components, which are connected or separated from each other or from each other via the connecting sleeves 4. Specifically, the ventilator has a gas input end and an output end, and the pipe connects the input end and the output end. There are two or more sets of connecting sleeves 4, each installed in the gas path. If two sets of connecting sleeves 4 are installed, since the air-oxygen mixing pipe 1 is located in the middle of the gas path, disconnecting the gas path from the middle allows sufficient space to move other components, facilitating the removal or installation of components. Therefore, the connecting sleeves 4 are installed at both ends of the air-oxygen mixing pipe 1. For example, if there are three sets of connecting sleeves 4, two sets of connecting sleeves 4 are installed at both ends of the air-oxygen mixing pipe 1, and the other set is installed between the components of the gas source pipe 3 or between the components of the air-oxygen output pipe 2; if there are four or more sets of connecting sleeves 4, two sets of connecting sleeves 4 are installed at both ends of the air-oxygen mixing pipe 1, and the other sets of connecting sleeves 4 are installed between the components of the gas source pipe 3 or between the components of the air-oxygen output pipe 2, depending on the wear and tear of the parts.

[0031] The connecting sleeve 4 connects or disconnects pipes or pipe components via threaded or snap-fit ​​connections. Please refer to [link / reference]. Figure 3For example, the snap-fit ​​connection method: the connecting sleeve 4 is a snap-fit ​​pipe clamp 44, which includes an upper body 441, a lower body 442, and a padding layer 443 adhered to the inner walls of the upper body 441 and the lower body 442. Both the upper body 441 and the lower body 442 are semi-circular rings. One end of the upper body 441 and one end of the lower body 442 are pre-hinged. The other end of the upper body 441 is provided with several locking holes 444, and the other end of the lower body 442 is provided with a snap fastener 445 that cooperates with the locking holes 444. The snap fastener 445 can be inserted into each locking hole 444 to snap the upper body 441 and the lower body 442 together. In use, the upper body 441 and the lower body 442 are respectively fitted onto the connection between pipes or between pipe components. The snap fastener 445 is inserted into the locking holes 444 to snap the upper body 441 and the lower body 442 onto the outer wall of the pipe or the outer wall of the component.

[0032] When the gas system malfunctions, simply operate the connecting sleeve 4 associated with the faulty component to disconnect the faulty component from the gas system and replace the faulty component. This avoids the time-consuming and laborious process of replacing the faulty component by disconnecting the gas system from the output end of the air-oxygen output pipe 2 one by one when the gas system of a traditional ventilator malfunctions. After the replacement is completed, the connecting sleeve 4 is operated to restore the connection.

[0033] Please see Figure 1 For example, when the high-pressure proportional valve 34 of the gas source pipeline 3 malfunctions, the existing technology requires disassembling each component of the air-oxygen output pipeline 2 one by one to remove the turbine blower 34 due to the compact installation of the gas circuit. With the easy-to-disassemble ventilator gas circuit of this utility model, it is only necessary to operate the connecting sleeve 4-1 connected to the high-pressure proportional valve 34, first disconnect the connecting sleeve 4-1 from the high-pressure proportional valve 34, and then remove the mounting screws of the high-pressure proportional valve 34 to replace the high-pressure proportional valve 34.

[0034] Please see Figure 1 and Figure 2Furthermore, because threaded connections offer excellent axial movement and are easy to manufacture, they are low-cost, and the connecting sleeve 4 is connected via a threaded connection. Two sets of connecting sleeves 4 are provided. One set connects or separates the air-oxygen mixing pipe 1 and the air-oxygen output pipe 2 via a threaded connection; the other set connects or separates the air-oxygen mixing pipe 1 and the gas source pipe 3 via a threaded connection. Preferably, one end of the air-oxygen mixing pipe 1 has a first external thread 11 on its outer surface; the other end has a second external thread 12 on its outer surface; the end of the air-oxygen output pipe 2 near the air-oxygen mixing pipe 1 has a third external thread 21 on its outer surface; the end of the gas source pipe 3 near the air-oxygen mixing pipe 1 has a fourth external thread 31 on its outer surface; and the inner wall of the connecting sleeve 4 has an axially penetrating internal thread 41. When assembling the ventilator's air circuit is required, the connecting sleeve 4 is pre-attached to the threaded end of the air-oxygen output pipe 2, the gas source pipe 3, or the air-oxygen mixing pipe 1 via a threaded connection, and the air-oxygen output pipe 2 and the gas source pipe 3 are then installed onto the ventilator's housing. Align the oxygen / air output pipe 2 with the oxygen / air mixing pipe 1, and rotate the corresponding connecting sleeve 4 to connect the oxygen / air mixing pipe 1 with the oxygen / air output pipe 2. Similarly, connect the oxygen / air mixing pipe 1 with the gas source pipe 3. The connecting sleeve 4 has a certain length, thus providing good compensation and adjustment capabilities. It can compensate for negative axial length errors between pipes, reducing the probability of needing to assemble, correct, or re-process the pipes, significantly improving the assembly efficiency of the gas circuit and reducing assembly costs. When the gas circuit system malfunctions, simply rotate both sets of connecting sleeves 4 to remove the oxygen / air mixing pipe 1. At this point, there is sufficient space for pipe movement, whether disassembling the gas source pipe 3 or the oxygen / air output pipe 2. This avoids the time-consuming and laborious process of traditional ventilators where the gas circuit must be disassembled piece by piece from the output end of the oxygen / air output pipe 2 to replace faulty parts when a ventilator malfunctions.

[0035] Please see Figure 2 Furthermore, the internal threads 41 of one set of connecting sleeves 4 are divided into two parts: one part mates with the first external thread 11, and the other part mates with the third external thread 21; the internal threads 41 of another set of connecting sleeves 4 are also divided into two parts: one part mates with the second external thread 12, and the other part mates with the fourth external thread 21. Dividing the internal threads 41 of the connecting sleeves 4 into two parts allows for the use of external threads with different outer diameters, accommodating different outer diameters and improving the application scenarios of the ventilator's airway. Preferably, to facilitate the machining of the connecting sleeves 4, the outer diameter of the first external thread 11 is equal to the outer diameter of the third external thread 21, and the outer diameter of the second external thread 12 is equal to the outer diameter of the fourth external thread 31.

[0036] Please see Figure 2Furthermore, sealing rings 111 are respectively provided between the pitches of the first external thread 11, the second external thread 12, the third external thread 21, and the fourth external thread 31. This enhances the sealing performance of the connection between the connecting sleeve 4 and the air-oxygen output pipe 2 and the air-oxygen mixing pipe 1, and increases the sealing performance of the connection between the connecting sleeve 4 and the gas source pipe 3 and the air-oxygen mixing pipe 1. Preferably, the sealing rings 111 are elastic and are fitted between the pitches.

[0037] Furthermore, the length of the first external thread 11 is greater than the sum of the length of one set of connecting sleeves 4 and the third external thread 21; the length of the second external thread 12 is greater than the sum of the length of another set of connecting sleeves 4 and the fourth external thread 31. When the air-oxygen mixing pipe 1 is not connected to the gas source pipe 3 or the air-oxygen output pipe 2, the connecting sleeve 4 can be rotated away from the end. Therefore, the connecting sleeve will not remain at the end and interfere with the assembly, facilitating quick connection next time.

[0038] Please see Figure 2 Furthermore, the outer surface of the connecting sleeve 4 is provided with an anti-slip groove 42. Preferably, the connecting sleeve 4 is cylindrical. In order to increase the friction between the connecting sleeve 4 and the user during operation and to facilitate the rotation of the connecting sleeve, an anti-slip groove 42 is provided on the outer surface to improve operating efficiency.

[0039] Please see Figure 1 and Figure 2 Furthermore, one set of connecting sleeves 4 has a first assembly ear 43 on its outer side, which facilitates the fixing of the air-oxygen mixing channel or pipeline components to the ventilator shell using the first assembly ear 43, improving the stability of the ventilator's airway and preventing external forces such as vibration from loosening the components of the ventilator's airway and causing poor sealing. For example, the air-oxygen mixing pipeline 1 has a second assembly ear 13 on its outer side that cooperates with the first assembly ear 43. In use, it is fixedly connected by screws through the first assembly ear 43 and the second assembly ear 13. Moreover, during assembly, the gas source pipeline 3 and the air-oxygen mixing pipeline 1 are simultaneously fixed to the ventilator shell through the first assembly ear 43 and the second assembly ear 13, enhancing its stability.

[0040] The gas circuit incorporates a connecting sleeve 4 structure to facilitate quick assembly and disassembly of the air-oxygen mixing pipe 1 with the air-oxygen output pipe 2 or the gas source pipe 3. The connecting sleeve 4 is threaded, allowing axial movement and providing excellent compensation and adjustment capabilities. This compensates for negative axial length errors between pipes, reducing the probability of needing to assemble, correct, or rework the gas circuit, significantly improving assembly efficiency and lowering assembly costs. In case of a malfunction, the faulty component can be removed simply by rotating the connecting sleeve 4 associated with it, further improving efficiency. Sealing rings 111 are provided between the pitches of the first external thread 11, the second external thread 12, the third external thread 21, and the fourth external thread 31, enhancing the sealing between the connecting sleeve 4 and the air-oxygen output pipe 2 and the air-oxygen mixing pipe 1, and improving the sealing between the gas source pipe 3 and the air-oxygen mixing pipe 1. The first assembly ear 43 and the second assembly ear 13 enhance the strength and stability of the gas circuit.

[0041] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above description is only a specific implementation method of this utility model and is not intended to limit this utility model. Any modifications, equivalent substitutions, and improvements made within the scope of the spirit of this utility model should be included within the protection scope of this utility model.

Claims

1. A readily dismountable breathing machine gas circuit, characterized in that, The utility model relates to a pipeline and at least two sets of connecting sleeves (4), the pipeline comprises a gas source pipeline (3), an air-oxygen mixing pipeline (1) and an air-oxygen output pipeline (2) arranged in sequence from an input end to an output end, and the pipeline is composed of pipeline components, and the pipelines or the pipeline components are connected or separated through the connecting sleeves (4). The connecting sleeve (4) is provided with two sets, one set of connecting sleeves (4) is connected or separated between the air-oxygen mixing pipeline (1) and the air-oxygen output pipeline (2) through threaded cooperation; the other set of connecting sleeves (4) is connected or separated between the air-oxygen mixing pipeline (1) and the gas source pipeline (3) through threaded cooperation.

2. The portable ventilator of claim 1, wherein, The air-oxygen mixing pipeline (1) is provided with a first external thread (11) on an outer surface of one end; the air-oxygen mixing pipeline (1) is provided with a second external thread (12) on an outer surface of the other end; the air-oxygen output pipeline (2) is provided with a third external thread (21) on an outer surface of one end close to the air-oxygen mixing pipeline (1); the gas source pipeline (3) is provided with a fourth external thread (31) on an outer surface of one end close to the air-oxygen mixing pipeline (1); and the connecting sleeve (4) is provided with an internal thread (41) axially penetrating an inner wall.

3. The portable respirator of claim 2, wherein, The internal thread (41) of one set of connecting sleeves (4) is divided into two parts, one part is threadedly matched with the first external thread (11), and the other part is threadedly matched with the third external thread (21); and / or 4. The portable ventilator of claim 3, wherein: The internal thread (41) of the other set of connecting sleeves (4) is divided into two parts, one part is threadedly matched with the second external thread (12), and the other part is threadedly matched with the fourth external thread (31). The outer diameter of the first external thread (11) is equal to the outer diameter of the third external thread (21), and / or 5. The easily detachable breathing machine gas circuit according to claim 3 or 4, characterized in that, The outer diameter of the second external thread (12) is equal to the outer diameter of the fourth external thread (31). The first external thread (11), the second external thread (12), the third external thread (21) and the fourth external thread (31) are respectively provided with sealing rings (111) between pitches.

6. The easily detachable breathing machine gas circuit according to claim 3 or 4, characterized in that, The first external thread (11), the second external thread (12), the third external thread (21) and the fourth external thread (31) are respectively provided with sealing rings (111) between pitches.

7. The portable ventilator of claim 5, wherein: The length of the first external thread (11) is greater than the sum of the length of one set of connecting sleeves (4) and the length of the third external thread (21); and / or 8. The portable respirator of claim 3, 4, or 7, wherein, The length of the second external thread (12) is greater than the sum of the length of the other set of connecting sleeves (4) and the length of the fourth external thread (31). The outer side surface of the connecting sleeve (4) is provided with an anti-skid groove (42).

9. The easily detachable breathing machine gas circuit according to claim 1, 2, 3, 4 or 7, wherein, The outer side of one set of connecting sleeves (4) is provided with a first assembly lug (43).

10. The easily detachable breathing machine gas circuit according to claim 1, 2, 3, 4 or 7, wherein, ​

Images