Air filtering device for invasive ventilator

The air filtration device, with its multi-layered filter and threaded connection structure, solves the problems of air impurities entering the patient's lungs and inconvenient maintenance in invasive ventilators, achieving both high-efficiency filtration and convenient maintenance.

CN223668441UActive Publication Date: 2025-12-16THE SECOND AFFILIATED HOSPITAL ARMY MEDICAL UNIV
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Patent Information

Application Number
CN202520241791.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-17
Publication Date
2025-12-16
Estimated Expiration
2035-02-17

AI Technical Summary

Technical Problem

During long-term use, existing invasive ventilators allow tiny particles and bacteria from the outside air to easily enter the patient's lungs, increasing the risk of infection. Furthermore, the devices are inconvenient to maintain, reducing work efficiency.

Method used

An air filtration device for invasive ventilators has been designed, which adopts a multi-layer filter layer and a threaded connection structure, including polypropylene fiber, polyester fiber and glass fiber filter layers. It can be easily installed and removed through threaded sleeves. The filter layers can effectively intercept impurities and pathogens of different sizes.

Benefits of technology

It achieves efficient air filtration, reduces the risk of infection for patients, simplifies the disassembly and maintenance process of the device, and improves work efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of medical instruments, and discloses an air filtering device for an invasive respirator, which comprises a respirator body, a display panel is arranged on the front side of the respirator body, and a warning lamp is fixedly connected to the middle of the upper surface of the respirator body. Connecting openings are formed in the middles of the left side and the right side of the lower portion of the front face of the breathing machine body, first air pipes are fixedly connected to the middles of the interiors of the connecting openings, connecting mechanisms are arranged outside the front faces of the first air pipes and comprise first threaded pipes, and one sides of the first threaded pipes are fixedly connected to the front faces of the first air pipes; a second threaded pipe is arranged outside the front face of the first threaded pipe. The first threaded pipe is connected with the front face of the first air pipe, the second threaded pipe can be screwed outside the first threaded pipe, the connecting pipe and the containing cylinder are connected with the first air pipe, and therefore the effect that medical staff can disassemble, assemble, clean and maintain the device conveniently can be achieved.
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Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically to an air filtration device for invasive ventilators. Background Technology

[0002] An invasive ventilator is a medical device used in intensive care settings. It is specifically designed to support or replace breathing for patients who are unable to maintain sufficient respiratory function on their own. It connects directly to the patient's airway through an invasive method, usually involving the insertion of a tube into the patient's trachea to ensure that gas can be effectively delivered to the lungs.

[0003] In modern medicine, invasive ventilators are widely used in intensive care units and other settings to help patients maintain normal respiratory function. However, because the outside air contains various tiny particles, bacteria and other pollutants, these impurities may enter the body with the air introduced into the patient's lungs, increasing the risk of infection. Current devices require periodic replacement, cleaning and maintenance during long-term use, which makes operation difficult for medical staff and reduces work efficiency. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides an air filtration device for invasive ventilators, which has the advantages of allowing medical staff to easily disassemble, clean, and maintain the device, thus solving the problems mentioned in the background art.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: an air filtration device for an invasive ventilator, comprising a ventilator body, a display panel on the front of the ventilator body, a warning light fixedly connected to the center of the upper surface of the ventilator body, connection ports on the left and right sides below the front of the ventilator body, a first trachea fixedly connected to the center of the connection port, a connecting mechanism on the outside of the front of the first trachea, the connecting mechanism comprising a first threaded tube, one side of the first threaded tube fixedly connected to the front of the first trachea, a second threaded tube on the outside of the front of the first threaded tube, a connecting tube fixedly connected to the center of the front of the second threaded tube, a placement cylinder fixedly connected to the front of the connecting tube, and a filtration mechanism on the front of the placement cylinder.

[0008] Preferably, the filtering mechanism includes an external thread, which is disposed on the outer surface of the placement cylinder near the front side.

[0009] Preferably, the front exterior of the placement cylinder is provided with a plurality of filter layers.

[0010] Preferably, the front exterior of the filter layer is provided with a filter core.

[0011] The filter layer can be placed in the interior of the placement cylinder, and the three filter layers are made of different materials; the first layer is made of polypropylene fiber material, has loose fiber structure, can effectively intercept larger dust particles, hair and other impurities in the air, and plays a role of preliminary filtration; the middle filter layer is arranged after the first filter layer, is made of polyester fiber material, can further filter medium-sized particles such as pollen and mold spores in the air, and the last filter layer is made of glass fiber material, has very high filtering efficiency, can filter out more than 99% of the micro-particles with a diameter of 0.3 microns or above in the air, including bacteria, viruses and other pathogens, provides clean and safe air for the invasive respirator, and effectively reduces the risk of respiratory tract infection of the patient.

[0012] Preferably, the front exterior of the filter core is provided with a threaded sleeve.

[0013] Preferably, the front middle part of the threaded sleeve is fixedly connected with a second air pipe.

[0014] The threaded sleeve can be screwed on the exterior of the placement cylinder through external threads, seals the filter layer and the filter core in the interior of the placement cylinder, and can be conveniently disassembled and replaced; the filtered air is discharged outward through the second air pipe.

[0015] Compared with the prior art, the air filtering device for the invasive respirator has the following beneficial effects:

[0016] 1、The first threaded pipe connected to the front of the first air pipe and the second threaded pipe can be screwed on the exterior of the first threaded pipe, so that the connecting pipe and the placement cylinder are connected together with the first air pipe, thereby achieving the effect that medical staff can conveniently disassemble, clean and maintain the device.

[0017] 2、The plurality of filter layers are arranged in the interior of the placement cylinder, the filter core is clamped on the inner wall of the placement cylinder, and the threaded sleeve can be screwed on the exterior of the placement cylinder through external threads, thereby achieving the effect that different-sized impurities and pathogens in the air can be comprehensively and efficiently filtered. BRIEF DESCRIPTION OF DRAWINGS

[0018] Fig. 1 It is a schematic diagram of the overall structure of the utility model.

[0019] Fig. 2 It is the whole structure schematic view of the connecting mechanism of the utility model;

[0020] Fig. 3 It is the side view structure schematic view of the connecting mechanism and the filtering mechanism of the utility model.

[0021] Among them: 1, breathing machine body; 101, display panel; 102, warning light; 103, connecting port; 104, first air pipe; 2, connecting mechanism; 201, first threaded pipe; 202, second threaded pipe; 203, connecting pipe; 204, placing cylinder; 3, filtering mechanism; 301, external thread; 302, filter layer; 303, filter core; 304, threaded sleeve; 305, second air pipe. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0023] Please refer to Figs. 1-3 An air filtering device for an invasive breathing machine, comprising a breathing machine body 1, the front of the breathing machine body 1 is provided with a display panel 101, the upper surface of the breathing machine body 1 is fixedly connected with a warning light 102 in the middle, the left and right sides of the lower front of the breathing machine body 1 are both provided with a connecting port 103, the inside of the connecting port 103 is fixedly connected with a first air pipe 104 in the middle, the front of the first air pipe 104 is provided with a connecting mechanism 2, the connecting mechanism 2 comprises a first threaded pipe 201, one side of the first threaded pipe 201 is fixedly connected to the front of the first air pipe 104, the front of the first threaded pipe 201 is provided with a second threaded pipe 202, the front of the second threaded pipe 202 is fixedly connected with a connecting pipe 203 in the middle, the front of the connecting pipe 203 is fixedly connected with a placing cylinder 204, the front of the placing cylinder 204 is provided with a filtering mechanism 3, the display panel 101 is used for displaying some basic data when the breathing machine body 1 is running, which is convenient for medical staff to understand, the warning light 102 can be used for warning errors and problems generated in the running process of the breathing machine body 1, which can be understood in time to avoid causing medical accidents, the two connecting ports 103 are respectively embedded in the left and right sides of the lower front of the breathing machine body 1, the two first air pipes 104 are respectively used for air intake and exhaust, the second threaded pipe 202 can be rotated on the outside of the first threaded pipe 201, the connecting pipe 203 and the placing cylinder 204 are connected together with the breathing machine body 1, and medical staff can conveniently disassemble and connect them.

[0024] Specifically, as shown in Fig. 3 The filter mechanism 3 includes an external thread 301 arranged on the outer surface of the placement cylinder 204 near the front side. The front outer part of the placement cylinder 204 is provided with a plurality of filter layers 302, and the front outer part of the filter layer 302 is provided with a filter core 303.

[0025] Through the above technical solution, the filter layer 302 can be placed in the inside of the placement cylinder 204. The three filter layers 302 are made of different materials. The first layer is made of polypropylene fiber material, which has loose fiber structure and can effectively intercept larger dust particles, hair and other impurities in the air, playing a role in preliminary filtration. The middle filter layer 302 is arranged after the first filter layer 302 and is made of polyester fiber material, which can further filter medium-sized particles such as pollen and mold spores in the air. The last filter layer 302 is made of glass fiber material and has extremely high filtration efficiency, which can filter out more than 99% of the tiny particles in the air with a diameter of 0.3 microns or above, including bacteria, viruses and other pathogens, providing clean and safe air for invasive respirators and effectively reducing the risk of respiratory tract infection in patients. The filter core 303 can effectively filter bacteria, viruses, dust, pollen and other harmful substances in the air, prevent these impurities from entering the respiratory tract and lungs of patients with respiratory airflow, and further reduce the risk of complications such as respiratory tract infection and lung inflammation in patients.

[0026] Specifically, as shown in Fig. 3 The front outer part of the filter core 303 is provided with a threaded sleeve 304, and the front middle part of the threaded sleeve 304 is fixedly connected with a second air pipe 305.

[0027] Through the above technical solution, the threaded sleeve 304 can be screwed on the outside of the placement cylinder 204 through the external thread 301, and the filter layer 302 and the filter core 303 are sealed in the inside of the placement cylinder 204, which can be conveniently disassembled and replaced. The filtered air is discharged outward through the second air pipe 305.

[0028] In use, the medical staff screws the second threaded pipe 202 on the outside of the first threaded pipe 201 to connect the placement cylinder 204 and the first air pipe 104 together, then places the prepared filter core 303 in the inside of the placement cylinder 204 in sequence, inserts the filter core 303 into the inside of the placement cylinder 204, and finally screws the threaded sleeve 304 on the outside of the placement cylinder 204.

[0029] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An air filtering device for an invasive ventilator, comprising a ventilator body (1), characterized in that: The front of the ventilator body (1) is provided with a display panel (101), the upper surface of the ventilator body (1) is fixedly connected with a warning light (102) in the middle, the left and right sides of the front of the ventilator body (1) are both provided with a connecting port (103) in the middle, the inside of the connecting port (103) is fixedly connected with a first air pipe (104), the front of the first air pipe (104) is provided with a connecting mechanism (2), the connecting mechanism (2) comprises a first threaded pipe (201), one side of the first threaded pipe (201) is fixedly connected to the front of the first air pipe (104), the front of the first threaded pipe (201) is provided with a second threaded pipe (202), the front of the second threaded pipe (202) is fixedly connected with a connecting pipe (203), the front of the connecting pipe (203) is fixedly connected with a placing cylinder (204), and the front of the placing cylinder (204) is provided with a filtering mechanism (3).

2. An air filter device for an invasive ventilator as defined in claim 1, characterized in that: The filtering mechanism (3) comprises an external thread (301), which is arranged on the outer surface of the placing cylinder (204) near the front side.

3. The air filter apparatus for an invasive ventilator of claim 1, wherein: The front of the placing cylinder (204) is provided with a plurality of filter layers (302) outside.

4. An air filter device for an invasive ventilator as defined in claim 3, characterized in that: The front of the filter layer (302) is provided with a filter core (303) outside.

5. An air filter device for an invasive ventilator as defined in claim 4, characterized in that: The front of the filter core (303) is provided with a threaded sleeve (304) outside.

6. An air filter device for an invasive ventilator according to claim 5, characterized in that: The front of the threaded sleeve (304) is fixedly connected with a second air pipe (305) in the middle.