Multifunctional breathing filtering device
By designing a multi-functional oval mask and a respiration filtration device with silver-carrying nanotitanium dioxide coating, air leakage and antibacterial problems in lung function and nitric oxide detection are solved, and an efficient and safe detection process is achieved, reducing detection Complexity and risk of contagion.
Patent Information
- Application Number
- CN202420215308.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-29
- Publication Date
- 2024-12-06
- Estimated Expiration
- 2034-01-29
AI Technical Summary
The existing lung function and nitric oxide detection devices for exhaled air have problems such as insufficient occlusal force, lip leaks, and tongue plugging. There is a lack of unified and standardized antibacterial filters, which leads to complex detection, high cost, high failure rate, and inability to detect. Meet the needs of preventing and controlling respiratory infectious diseases.
A multifunctional respiratory filtration device was designed, using an oval mask and silver-carrying nanotitanium dioxide coating, and a filter membrane composed of ultrafine polypropylene fiber and chlorhexidine, which can be compatible with lung function and nitric oxide detection to avoid air leakage. and has antibacterial function.
It realizes detection without nose clips, reduces the complexity and failure rate of detection, reduces the burden on patients and technicians, improves the economic benefits and safety of detection, and effectively prevents and controls the spread of respiratory infectious diseases.
Smart Images
Figure CN222110024U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of respiratory detection instruments, in particular to a multifunctional respiratory filtering device. Background Art
[0002] Pulmonary function (spirometry) and fractional exhaled nitric oxide (FeNO) are of great clinical value in identifying airway and lung diseases, such as chronic obstructive pulmonary disease, bronchial asthma, interstitial lung disease, etc.; evaluating airway inflammation and disease severity; evaluating the efficacy of drugs or other treatments; identifying the cause of dyspnea, diagnosing the location of lesions, and surgical evaluation. However, the pulmonary function breathing filter devices currently used in my country have problems such as insufficient bite force, lip leakage, and tongue blocking the tube. People with common diseases such as missing teeth, facial paralysis, and cerebrovascular accidents cannot cooperate and are unable to complete pulmonary function tests. Exhaled nitric oxide breathing filter devices have large differences in filters provided by different manufacturers, and some are even just a simple filter membrane. There is no unified standard breathing filter.
[0003] Lung function and airway inflammation assessment are important detection methods for respiratory diseases. The patient's lung function and exhaled nitric oxide often need to be tested simultaneously, requiring two different sets of respiratory filtration devices, which not only increases costs but is also complicated to use. It is not easy for patients to learn, the failure rate is high, and repeated guidance from technicians is required. Whether in terms of economy, time efficiency, or difficulty of use, the burden on patients and technicians has increased significantly.
[0004] Chinese utility model CN218356210U discloses a breath filter to prevent air leakage, which is used to tightly wrap the mouth of the examinee to prevent air leakage by setting an inner filter baffle and an outer filter baffle at the mouth position. However, it cannot be used for the detection of exhaled nitric oxide meter, and a nose clip is still required for pulmonary function testing. When using it, we found that the expiratory peak of pulmonary function is arc-shaped, without an expiratory peak, and cannot meet the flow rate capacity curve graphic quality control requirements (see Lian et al. Respirology. 2017; 22 (3): 527-532. doi: 10.1111 / resp. 12950), thereby affecting the reliability of pulmonary function test parameters. In addition, respiratory infectious diseases have emerged one after another in recent years, making airway examinations face severe prevention and control risks. The currently used breath filters use clean or sterile devices, which cannot meet the prevention and control requirements, and it is urgent to develop new antibacterial breath filter devices. Utility Model Content
[0005] In order to solve the above problems, the purpose of the utility model is to provide a respiratory filtration device for combined detection of lung function and nitric oxide. The respiratory device has an antibacterial function and can avoid common phenomena such as insufficient bite force of patients, lip leakage, and tongue blocking the tube.
[0006] In order to achieve the above objectives, this plan specifically adopts the following means:
[0007] A multifunctional respiratory filter device, the open end of which is an elliptical mask that fits the mouth shape, the elliptical mask is connected to a first connecting tube, the first connecting tube is connected to a filter device, a filter membrane is arranged inside the filter device, the other end of the filter device is connected to a second connecting tube, the second connecting tube has a circular interface at the external end, the circular interface is used to connect to a pulmonary function meter or an exhaled nitric oxide detector, and the inner wall of the respiratory filter device is provided with a titanium dioxide coating and a chlorhexidine layer.
[0008] Furthermore, the oval mask is high at both ends and low in the middle, and the inner opening is oval so as to fit closely to the lips.
[0009] Furthermore, the tube wall of the respiratory filter device is coated with silver-loaded nano-titanium dioxide, which can load chlorhexidine in a concentration gradient manner. The silver-loaded nano-titanium dioxide and chlorhexidine have anti-infection effects.
[0010] Furthermore, the filter membrane is composed of ultrafine polypropylene fibers and chlorhexidine. Polypropylene is a hydrophobic material that is not conducive to the growth of pathogenic microorganisms, while chlorhexidine has an anti-infective effect.
[0011] Compared with the prior art, the utility model has the following beneficial effects:
[0012] The respiratory filter device of the utility model is compatible with the detection of lung function and exhaled nitric oxide. At the same time, it can avoid common phenomena such as insufficient bite force of patients, lip leakage, tongue blocking tube, etc. It is not necessary to use a nose clip, and the requirements for peak expiratory flow rate in the flow rate capacity curve graphic quality control can be achieved. Whether in terms of economy, time efficiency and difficulty of use, it reduces the burden on patients and technicians.
[0013] The tube wall of the respiratory filter device is coated with silver nano-titanium dioxide and loaded with chlorhexidine; the middle filter membrane is composed of ultrafine polypropylene fiber and chlorhexidine. Polypropylene is not conducive to the growth of pathogenic microorganisms, while silver nano-titanium dioxide and chlorhexidine have anti-infection effects. It can reduce the severe prevention and control risks faced by airway inspections, avoid the occurrence of cross infection, and protect the detection equipment at the same time. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a structural schematic diagram of a specific embodiment of the utility model;
[0015] Figure 2 It is a structural stereogram of a specific embodiment of the utility model;
[0016] Numbers in the figure:
[0017] 1. Circular interface; 2. Second connecting pipe; 3. Filter device; 4. Filter membrane; 5. First connecting pipe; 6. Oval mask; 7. Titanium dioxide coating; 8. Chlorhexidine layer. DETAILED DESCRIPTION
[0018] See also Figure 1-2 The structural diagram of the present invention provides a multifunctional respiratory filter device, the opening end of which is an elliptical mask 6, presenting an elliptical arc funnel, which is high at both ends and low in the middle, can fit closely to the lips, and the inner opening of the mask is also elliptical. The inner diameter of the elliptical mask 6 is 3.3*2cm, and the length is 5.5cm, which meets the requirements of flow rate capacity curve graphic quality control. The other end of the respiratory filter device is a circular interface 1 with a diameter of 3cm, which can be connected to a pulmonary function meter and / or exhaled nitric oxide. The elliptical mask 6 is connected to a first connecting tube 5, the length of the first connecting tube 5 is 3cm, and the first connecting tube 5 is connected to a filter device 3, the diameter of the filter device 3 is 9.2cm, and the thickness is 0.9cm. The other side of the filter device 3 is connected to a second connecting tube 2, and the length of the second connecting tube 2 is 3cm.
[0019] In this embodiment, the volume of the entire respiratory filter device is about 50 ml, so as to meet the volume specification of the pulmonary function tester and the detection parameter requirements of nitric oxide. The second connecting tube 2, the filter device 3, and the first connecting tube 5 can be a whole or three sets, which can be assembled and used.
[0020] In this embodiment, the tube wall of the respiratory filter device is made of polypropylene material, with silver-loaded nano-titanium dioxide as a coating (titanium dioxide coating 7), and the silver-loaded nano-titanium dioxide can load chlorhexidine (chlorhexidine layer 8) in a concentration gradient manner, and the silver-loaded nano-titanium dioxide and chlorhexidine have anti-infection effects. If pathogenic microorganisms such as bacteria and viruses are adsorbed on the filter tube wall, the pathogenic microorganisms exhaled by the patient can be prevented from contaminating the instrument, avoiding the occurrence of cross infection.
[0021] In this embodiment, the filter membrane 4 in the middle of the respiratory filter device is composed of ultrafine polypropylene fibers and chlorhexidine. Polypropylene is a hydrophobic material that is not conducive to the growth of fungi, bacteria and viruses, while chlorhexidine has an anti-infection effect. The filter membrane 4 can effectively filter out and inhibit pathogenic microorganisms between the patient's respiratory tract and the respiratory circuit, reduce the occurrence of respiratory tract infections, and protect the detection equipment at the same time.
[0022] The method of using the breathing filter device of the utility model is:
[0023] (1) The patient takes an appropriate position;
[0024] (2) During the pulmonary function test, the circular interface 1 of the respiratory filter device is connected to the pulmonary function test port;
[0025] (3) Instruct the patient to place his lips close to the oval arc mask 6 of the respiratory filter device and inhale and exhale according to the technician's instructions. If necessary, the patient can use his hands to help the lips and the oval mask to fit closely.
[0026] (4) The method for detecting exhaled nitric oxide is similar, and the circular interface 1 of the respiratory filter device is connected to the nitric oxide detection port;
[0027] (5) Ask the patient to place his lips close to the elliptical arc mask 6 of the respiratory filter device and perform the test according to the technician's instructions. If necessary, the patient can use his hands to help the lips and the elliptical mask to fit closely;
[0028] (6) After the test is completed, the patient's lips leave the elliptical arc mask 6, and the technician can unplug the circular interface 1 of the respiratory filter device from the test instrument port.
[0029] The main feature of the respiratory filter device of the utility model is that it is compatible with the detection of lung function and exhaled nitric oxide. At the same time, it can avoid common phenomena such as insufficient bite force of patients, lip leakage, tongue blocking the tube, etc., and it is not necessary to use a nose clip to meet the requirements of the peak expiratory flow rate in the flow rate capacity curve graphic quality control. The tube wall of the respiratory filter device is coated with silver-loaded nano-titanium dioxide, which can load chlorhexidine; the middle filter membrane is composed of ultrafine polypropylene fiber and chlorhexidine. Polypropylene is not conducive to the growth of pathogenic microorganisms, and silver-loaded nano-titanium dioxide and chlorhexidine have anti-infection effects. It can reduce the severe prevention and control risks faced by airway examinations, avoid the occurrence of cross infection, and protect the detection equipment at the same time. Therefore, the utility model has high economic benefits, social benefits and safety.
[0030] The above is only a preferred embodiment of the utility model, and is not any formal or substantial limitation of the utility model. It should be pointed out that ordinary technicians in this technical field can make some improvements and supplements without departing from the utility model, and these improvements and supplements should also be regarded as the protection scope of the utility model. Any technician familiar with this profession can make some changes, modifications and equivalent changes made by using the technical content disclosed above without departing from the spirit and scope of the utility model, which are all equivalent embodiments of the utility model; at the same time, any changes, modifications and evolutions of any equivalent changes made to the above embodiments based on the essential technology of the utility model are still within the scope of the technical solution of the utility model.
Claims
1. A multifunctional breathing filter device, characterized in that: The open end is an elliptical mask (6) that fits the mouth shape. The elliptical mask (6) is connected to a first connecting tube (5). The first connecting tube (5) is connected to a filter device (3). A filter membrane (4) is provided inside the filter device (3). The other end of the filter device (3) is connected to a second connecting tube (2). The second connecting tube (2) is connected to a circular interface (1) at the external end. The circular interface (1) is used to connect to a pulmonary function meter or an exhaled nitric oxide detector. The inner wall of the respiratory filter device is coated with a titanium dioxide coating (7) and a chlorhexidine layer (8).
2. The functional breathing filter device according to claim 1, characterized in that: The oval mask (6) is high at both ends and low in the middle, and its inner opening is oval, so as to fit closely to the lips.