Filtering device for breathing machine

Abstract

The invention provides a filtering device for a breathing machine, and belongs to the technical field of breathing machine equipment.The filtering device comprises a filtering mechanism, the filtering mechanism comprises a filtering cylinder, a shell and a sterilization barrel, when airflow flows through the filtering mechanism, the filtering mechanism can conduct sterilization treatment on the airflow, and the airflow can be disinfected and sterilized through an ultraviolet lamp; meanwhile, harmful substances cannot be generated; moreover, in the process that the air flow passes through the filtering mechanism, the air flow can flow along the filtering barrel and the sterilizing barrel and drives the filtering barrel and the sterilizing barrel to rotate around the axis of the annular supporting plate, so that the filtering barrel and the sterilizing barrel rectify the air flow, the flowability of the discharged air flow is ensured, and meanwhile, the filtering barrel and the sterilizing barrel are beneficial to flowing of the air flow along the ultraviolet lamp; the contact effect is improved, the contact time is prolonged, liquid medicine drops in air flow are collected through the filtering element, the air flow is subjected to slow flow and sterilization treatment, in addition, the flowing air flow can cool the ultraviolet lamp tube, and it is guaranteed that the whole device can work and be used for a long time.

Description

Technical Field

[0001] The invention belongs to the technical field of ventilator equipment and relates to a filtering device for a ventilator. Background Art

[0002] In modern clinical medicine, ventilators, as an effective means of artificially replacing spontaneous ventilation, are widely used for respiratory failure caused by various causes, anesthesia and respiratory management during major surgery, respiratory support therapy, and emergency resuscitation. They play a crucial role in modern medicine. Ventilator gases directly participate in the respiratory cycle through production, storage, transportation, and the operating environment. Therefore, filtering the gases circulating within the ventilator is essential.

[0003] Prior art includes an invention patent entitled "Filter" with publication number US09095675B2, which discloses a filter, particularly a filter disposed between a patient and a ventilator, capable of cleaning the air to be breathed.

[0004] This invention includes a filter for use in the expiratory limb of a ventilator, comprising a housing having an inlet channel and an outlet channel, a main filter element, a pre-filter member positioned upstream of the main filter element in the direction of flow, and a breathable material capable of collecting droplets of medication in the airflow passing through the main filter element. This invention does not slow or sterilize the airflow.

[0005] After using the existing filter device for a period of time, when the filtering capacity of the filter element decreases, the filter element needs to be replaced immediately, or the entire filter device needs to be replaced directly. This method is not only troublesome to operate, but also takes a long time to replace the filter element and has a high cost. Summary of the Invention

[0006] In order to solve the technical problems existing in the above-mentioned background technology, the present invention provides a filtering device for a ventilator, comprising: a filtering mechanism, the filtering mechanism comprising a filter cartridge, a shell, a sterilization barrel and an ultraviolet lamp, the shell comprising a front ring plate and a rear ring plate, the front ring plate and the rear ring plate are installed on the filter cartridge, the right side wall of the front ring plate is connected to the left side of the sterilization barrel, the left side wall of the rear ring plate is connected to the right side of the sterilization barrel, the right end of the outer wall of the front ring plate is fixedly provided with a sterilization barrel, an annular ultraviolet lamp is arranged inside the sterilization barrel, a filter element mounting ring is provided on the contact surface of the filter barrel with the shell, a filter element is arranged on the filter element mounting ring, a plurality of mounting holes are opened on the surface of the filter element mounting ring, which is docked and mounted to the internal mounting plate of the filter cartridge using the mounting holes, and an air outlet pipe is provided on the right side wall of the front ring plate.

[0007] Furthermore, the left end of the air outlet pipe passes through the side wall of the front ring plate and extends to the left end of the front ring plate, the right end of the air outlet pipe is fixedly provided with an evenly arranged branch pipe, the interior of the branch pipe is fixedly provided with an airflow single-phase valve, the right end of the evenly arranged branch pipe is fixedly provided with a sleeve, the interior of the sleeve is fixedly provided with a filter element, and the right end of the air outlet pipe wall is fixedly provided with a symmetrical limit plate, and the outside of the air outlet pipe is fixedly sleeved with an elastic plate, the left end of the elastic plate is fixedly connected to the inner wall of the front ring plate, and the right end of the elastic plate is in contact with the left wall of the limit plate, the side wall of the rear ring plate is fixedly provided with an air inlet pipe, the left end of the air inlet pipe is fixedly provided with a connecting pipe, the left end of the connecting pipe is fixedly provided with an intubation pipe, and the intubation pipe is plugged into the sleeve, the right end of the air inlet pipe passes through the side wall of the rear ring plate and extends to the right end of the rear ring plate, and the upper surfaces of the rear ring plate and the front ring plate are provided with monitoring windows.

[0008] The beneficial effects of the present invention are: The present invention provides a filtering device for a ventilator, comprising: a filtering mechanism, the filtering mechanism comprising a filter cartridge, a shell, and a sterilization barrel. When the air flow passes through the filtering mechanism, the filtering mechanism will disinfect the air flow, and the air flow can be disinfected and sterilized by an ultraviolet lamp without generating harmful substances. Moreover, in the process of the air flow passing through the filtering mechanism, the air flow can flow along the filter cartridge and the sterilization barrel, and drive the filter cartridge and the sterilization barrel to rotate around the axis of the annular support plate, thereby causing the filter cartridge and the sterilization barrel to rectify the air flow, ensuring the flow of the exhaust air flow, and avoiding the problem of steady flow or unstable flow rate of the exhaust air flow that affects the patient's use. At the same time, the filter cartridge and the sterilization barrel help the air flow to flow along the ultraviolet lamp, improve the contact effect and contact time, collect the droplets of medicine in the air flow through the filter element, and slow down and sterilize the air flow. In addition, the air flow passing through can cool the ultraviolet lamp tube to ensure that the entire device can work and be used for a long time.

[0009] Advantages of additional aspects of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] The accompanying drawings, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0011] Figure 1 Schematic diagram of the structure of a filter device for a ventilator according to the present invention; Figure 2 Schematic diagram of the internal structure of the filter cartridge of the present invention; Among them: 1. Filter cartridge; 2. Sterilization barrel; 3. Shell; 104. Sleeve; 105. Filter element; 106. Exhaust pipe; 107. Filter element mounting ring; 109. Branch pipe; 201. Inlet pipe; 301. Intubation tube; 302. Monitoring window. DETAILED DESCRIPTION

[0012] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0013] It should be noted that the following detailed description is illustrative and is intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used in this embodiment have the same meaning as commonly understood by those skilled in the art to which the present invention belongs.

[0014] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present invention. As used herein, unless the context clearly indicates otherwise, the singular form is intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0015] In the present invention, terms such as "upper", "lower", "left", "right", "front", "back", "vertical", "horizontal", "side", "bottom", etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. They are relational words determined only for the convenience of describing the structural relationships of the various parts or elements of the present invention, and do not specifically refer to any part or element in the present invention, and should not be understood as limiting the present invention.

[0016] In the present invention, terms such as "fixed connection," "connected," and "connection" should be interpreted broadly to mean a fixed connection, an integral connection, or a detachable connection; a direct connection or an indirect connection through an intermediary. Relevant researchers or technicians in this field may determine the specific meanings of these terms in the present invention based on specific circumstances, and they should not be construed as limitations of the present invention.

[0017] Example 1, as Figure 1-Figure 2As shown, this embodiment provides a filtering device for a ventilator, including a filtering mechanism, which includes a filter cartridge 1, a shell 3 and a sterilization barrel 2. The shell 3 includes a front ring plate and a rear ring plate. The front ring plate and the rear ring plate are installed on the filter cartridge 1, and the right side wall of the front ring plate is connected to the left side of the sterilization barrel 2, and the left side wall of the rear ring plate is connected to the right side of the sterilization barrel 2. The sterilization barrel 2 is fixedly provided with a sterilization barrel 2 on the right end of the outer wall of the front ring plate, an ultraviolet lamp is installed in the sterilization barrel 2, and an annular ultraviolet lamp is arranged inside the sterilization barrel 2. A filter element mounting ring 107 is provided on the contact surface of the filter barrel with the shell, and a filter element 105 is arranged on the filter element mounting ring 107. A plurality of mounting holes are opened on the surface of the filter element mounting ring 107, which is docked and mounted on the internal mounting plate of the filter cartridge 1 using the mounting holes. An air outlet pipe 106 is provided on the right side wall of the front ring plate, and the left end of the air outlet pipe 106 passes through the side wall of the front ring plate and extends to the front ring plate. The right end of the outlet pipe 106 is fixed with a branch pipe 109 arranged evenly, and the inside of the branch pipe 109 is fixed with a single-phase airflow valve. The right end of the evenly arranged branch pipe 109 is fixed with a sleeve 104, and the inside of the sleeve 104 is fixed with a filter element 105. The right end of the outlet pipe 106 wall is fixed with a symmetrical limit plate, and the outside of the outlet pipe 106 is fixedly sleeved with an elastic plate. The left end of the elastic plate is connected to the front ring plate. The inner wall is fixedly connected, the right end of the elastic plate is in contact with the left wall of the limit plate, the side wall of the rear ring plate is fixedly provided with an air intake pipe 201, the left end of the air intake pipe 201 is fixedly provided with a connecting pipe, the left end of the connecting pipe is fixedly provided with a cannula 301, the cannula 301 is plugged into the sleeve 104, the right end of the air intake pipe 201 passes through the side wall of the rear ring plate and extends to the right end of the rear ring plate, and the upper surfaces of the rear ring plate and the front ring plate are provided with monitoring windows 302.

[0018] When the air flow passes through the filter mechanism, the filter mechanism will disinfect the air flow, and the air flow can be disinfected and sterilized by the ultraviolet lamp without generating harmful substances; and, in the process of the air flow passing through the filter mechanism, the air flow can flow along the filter cartridge 1 and the sterilization barrel 2, and drive the filter cartridge 1 and the sterilization barrel 2 to rotate around the axis of the annular support plate, thereby making the filter cartridge 1 and the sterilization barrel 2 rectify the air flow, ensuring the flow of the exhaust air flow, and avoiding the problem of steady flow or unstable flow rate of the exhaust air flow affecting the patient's use; at the same time, the filter cartridge 1 and the sterilization barrel 2 help the air flow to flow along the ultraviolet lamp, improve the contact effect and contact time, and in addition, the air flow passing through can cool the ultraviolet lamp tube to ensure that the entire device can work and be used for a long time.

[0019] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of protection of the present invention.

Claims

1. A filter device for a ventilator, characterized in that: include: The filter mechanism comprises a filter cartridge (1), a shell (3), a sterilization barrel (2) and an ultraviolet lamp. The shell (3) comprises a front ring plate and a rear ring plate. The front ring plate and the rear ring plate are mounted on the filter cartridge (1). The right side wall of the front ring plate is connected to the left side of the sterilization barrel (2). The left side wall of the rear ring plate is connected to the right side of the sterilization barrel (2). The sterilization barrel (2) is fixedly provided with a sterilization barrel (2) at the right end of the outer wall of the front ring plate. The ultraviolet lamp is mounted on the sterilization barrel (2). An annular ultraviolet lamp is arranged inside the sterilization barrel (2). A filter element mounting ring (107) is provided on the contact surface with the shell in the filter barrel. A filter element is mounted on the filter element mounting ring (107). A plurality of mounting holes are opened on the surface of the filter element mounting ring (107). The filter element is mounted on the inner mounting plate of the filter cartridge (1) by docking with the mounting holes. An air outlet pipe (106) is provided on the right side wall of the front ring plate.

2. A filter device for a ventilator according to claim 1, characterized in that: The left end of the air outlet pipe (106) passes through the side wall of the front ring plate and extends to the left end of the front ring plate. The right end of the air outlet pipe (106) is fixedly provided with evenly arranged branch pipes (109). The inside of the branch pipes (109) is fixedly provided with an airflow single-phase valve. The right end of the evenly arranged branch pipes (109) is fixedly provided with a sleeve (104). The inside of the sleeve (104) is fixedly provided with a filter core (105). The right end of the pipe wall of the air outlet pipe (106) is fixedly provided with a symmetrical limit plate.

3. A filter device for a breathing machine according to claim 2, characterized in that: An elastic plate is fixedly sleeved on the outside of the air outlet pipe (106), the left end of the elastic plate is fixedly connected to the inner wall of the front ring plate, the right end of the elastic plate is in contact with the left side wall of the limiting plate, an air inlet pipe (201) is fixedly provided on the side wall of the rear ring plate, and a connecting pipe is fixedly provided on the left end of the air inlet pipe (201).

4. A filter device for a breathing machine according to claim 3, characterized in that: The left end of the connecting pipe is fixedly provided with an insert (301), and the insert (301) is plugged into the sleeve (104). The right end of the air inlet pipe (201) passes through the side wall of the rear ring plate and extends to the right end of the rear ring plate. The upper surfaces of the rear ring plate and the front ring plate are both provided with monitoring windows (302).

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