Portable exhaled nitric oxide analyzer
By designing a back clip and backplate structure on the breath nitric oxide analyzer, the problem of insufficient portability was solved, enabling the analyzer to be stably carried and easily operated, thus improving the timeliness and convenience of patient testing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ANHUI YUTONG MEDICAL TECH CO LTD
- Filing Date
- 2025-04-07
- Publication Date
- 2026-04-28
AI Technical Summary
Existing breath nitric oxide analyzers lack portability, making them difficult to carry conveniently outdoors or in mobile settings, thus affecting timely testing for patients.
A portable exhaled nitric oxide analyzer was designed. The instrument is clipped to the patient's waist using a back clip and back plate structure. Combined with a positioning rod and mounting strip, it can be easily installed and disassembled, enhancing the instrument's stability and portability.
This enables the analyzer to be securely carried, improving the timeliness and convenience of testing, simplifying the installation and disassembly process, and increasing the instrument's flexibility and ease of use.
Smart Images

Figure CN224176492U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of exhaled nitric oxide analyzers, specifically a portable exhaled nitric oxide analyzer. Background Technology
[0002] In the field of respiratory disease diagnosis and monitoring, exhaled nitric oxide (FeNO) detection is crucial. Traditional nitric oxide analyzers are mostly large devices, installed in specific testing areas of hospitals, and are bulky and complex in structure. These devices often require connection to various external lines and accessories, rely on professional personnel for operation, and require a stable power supply and suitable environmental conditions.
[0003] With the continuous advancement of medical technology and the increasing emphasis people place on health management, miniaturized nitric oxide analyzers have emerged.
[0004] For many patients with chronic respiratory diseases, such as asthma, their condition is often recurrent and sudden. During disease flare-ups or periods of instability, patients need to frequently monitor their FeNO levels in order to adjust their treatment plans in a timely manner. However, each trip to the hospital for testing is time-consuming and laborious, and if their condition changes suddenly, they may not be able to obtain test results in time to adjust their treatment plans.
[0005] Although these small analyzers are smaller and lighter than traditional large equipment, and some even have a certain degree of portability, their portability is still significantly lacking in practical applications. Most small analyzers are only equipped with simple handheld devices, but their portability is still not ideal. They lack convenient ways to carry them, making it difficult for users to carry them easily in scenarios such as outdoor travel, long-distance business trips, and daily work. As a result, the equipment cannot be readily available when timely testing is required.
[0006] Therefore, a portable exhaled nitric oxide analyzer is proposed to address the above problems. Utility Model Content
[0007] To address the problems mentioned in the background section, this invention provides a portable breath nitric oxide analyzer, which allows for easy carrying of the analyzer by clipping it to the patient's waistband, greatly improving the analyzer's timeliness and convenience.
[0008] To achieve the above objectives, the present invention provides the following technical solution: a portable exhaled nitric oxide analyzer, comprising an analyzer body, wherein a portable component is mounted on the surface of the analyzer body;
[0009] The portable component includes a back plate. The back plate is symmetrically arranged on one side surface of the analyzer body near the waist. A back clip is arranged in a through groove on the surface of the back plate. A movable rod is installed on the surface of the back clip. Both ends of the movable rod pass through the back clip and are rotatably connected in the through groove on the surface of the back plate. A torsion spring is symmetrically sleeved on the surface of the movable rod. One end of the torsion spring is connected to the back clip, and the other end of the torsion spring is installed in the through groove on the surface of the back plate. A disassembly component is installed on the surface of the analyzer body.
[0010] Preferably, the back clip has several rubber protrusions mounted on the side surface near the analyzer body.
[0011] Preferably, a plurality of bonding pads are evenly installed between the two back plates, and the bonding pads are made of silicone material.
[0012] Preferably, the upper part of the back clip is configured with a "sloping surface structure".
[0013] Preferably, a pressing block is installed at the top of the upper part of the back clip, and the surface of the pressing block is provided with an arc-shaped groove that is adapted to the finger area.
[0014] Preferably, the disassembly assembly includes mounting strips, which are symmetrically mounted on one side surface of the analyzer body. The surface of the back plate has mounting grooves that are adapted to the mounting strips, and the mounting grooves and the mounting strips are engaged. A positioning rod is slidably connected in a through hole on the surface of the back plate. One end of the positioning rod passes through the back plate and is inserted into a hole on the surface of the mounting strip.
[0015] Preferably, a return spring is sleeved on the surface of the positioning rod, one end of the return spring is connected to the positioning rod, and the other end of the return spring is connected to the back plate.
[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0017] 1. This utility model, through the use of a back plate and back clip, allows the analyzer body to be clipped to the waist of the patient's pants, thus enabling the analyzer body to be carried around and ensuring that the analyzer body is always firmly fixed to the waist, greatly improving the timeliness and convenience of the analyzer body.
[0018] 2. This utility model allows for easy removal of the backplate from the analyzer body through the combined use of positioning rods and mounting strips. Similarly, installation can be carried out. The entire process is simple and convenient, requiring no complicated tools, which greatly improves the efficiency of installation and disassembly. It also allows operators to install or disassemble portable components at any time according to actual needs, increasing the flexibility of instrument use. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0020] Figure 2 This is a schematic diagram of the back structure of the analyzer body of this utility model;
[0021] Figure 3 This is a schematic diagram of the structure of the mounting strip and back plate of this utility model;
[0022] Figure 4 This is an enlarged schematic diagram of the positioning rod and reset spring of this utility model;
[0023] Figure 5 This is a schematic diagram of the cross-sectional structure of the back plate of this utility model;
[0024] Figure 6 This is a schematic diagram of the structure of the back plate and rubber protrusions of this utility model.
[0025] In the diagram: 1. Analyzer body; 2. Portable components; 21. Backplate; 22. Back clip; 23. Movable rod; 24. Torsion spring; 25. Rubber protrusion; 26. Adhesive piece; 27. Pressing block; 3. Disassembly components; 31. Mounting strip; 32. Mounting slot; 33. Positioning rod; 34. Return spring. Detailed Implementation
[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0027] like Figures 1 to 6 As shown, this utility model provides a portable exhaled nitric oxide analyzer, including an analyzer body 1, and a portable component 2 is installed on the surface of the analyzer body 1;
[0028] The portable component 2 includes a back plate 21. The back plate 21 is symmetrically arranged on the side surface of the analyzer body 1 near the waist. A back clip 22 is arranged in a through groove on the surface of the back plate 21. A movable rod 23 is installed on the surface of the back clip 22. Both ends of the movable rod 23 pass through the back clip 22 and are rotatably connected in the through groove on the surface of the back plate 21. A torsion spring 24 is symmetrically sleeved on the surface of the movable rod 23. One end of the torsion spring 24 is connected to the back clip 22, and the other end of the torsion spring 24 is installed in the through groove on the surface of the back plate 21. A disassembly component 3 is installed on the surface of the analyzer body 1. By using the back plate 21 and the back clip 22 together, the analyzer body 1 can be clipped to the waist of the patient's pants, thereby realizing the portable handling of the analyzer body 1 and ensuring that the analyzer body 1 is always firmly fixed to the waist, greatly improving the timeliness and convenience of the analyzer body 1.
[0029] Specifically, the back clip 22 has several rubber protrusions 25 installed on the side surface near the analyzer body 1 to increase the friction between it and clothing, effectively preventing the analyzer body 1 from slipping off during carrying.
[0030] like Figures 1 to 6 As shown, multiple fitting pieces 26 are evenly installed between the two back plates 21, and the fitting pieces 26 are made of silicone material. Silicone has the characteristics of being soft, elastic, and having strong adhesion. During carrying, the fitting pieces 26 can closely fit the patient's waist curve, disperse the pressure of the back clip 22 on the waist, and reduce local pressure.
[0031] Furthermore, the upper part of the back clip 22 is designed with a "sloping structure", which makes it easy to press and adjust the back clip 22.
[0032] It is worth noting that a pressing block 27 is installed at the top of the upper part of the back clip 22, and the surface of the pressing block 27 is provided with an arc-shaped groove that fits the finger. The arc-shaped groove design on the surface of the pressing block 27 fits the shape of the finger and greatly improves the user's force application experience when pressing. Through the inclined structure of the back clip 22, the pressing block 27 can be prevented from contacting the patient's skin and causing compression of the patient's skin.
[0033] like Figures 1 to 6As shown, the disassembly assembly 3 includes a mounting strip 31. The mounting strip 31 is symmetrically mounted on one side surface of the analyzer body 1. The surface of the back plate 21 has a mounting groove 32 that matches the mounting strip 31, and the mounting groove 32 and the mounting strip 31 are engaged. A positioning rod 33 is slidably connected in a through hole on the surface of the back plate 21. One end of the positioning rod 33 passes through the back plate 21 and is inserted into a hole on the surface of the mounting strip 31. By using the positioning rod 33 and the mounting strip 31, the back plate 21 can be easily removed from the analyzer body 1. Similarly, it can be installed. The whole process is simple and convenient to operate without the need for complicated tools, which greatly improves the efficiency of installation and disassembly. It allows operators to install or disassemble the portable assembly 2 at any time according to actual needs, increasing the flexibility of instrument use.
[0034] It is worth emphasizing that a return spring 34 is sleeved on the surface of the positioning rod 33. One end of the return spring 34 is connected to the positioning rod 33, and the other end of the return spring 34 is connected to the back plate 21. The return spring 34 can automatically drive the positioning rod 33 to insert into the insertion hole, thereby firmly installing the back plate 21 on the analyzer body 1.
[0035] The structure of the analyzer body 1 is prior art and will not be described in detail. Additionally, this invention includes a power supply, controller, and switches, which are not the main technical points of this patent and will not be described in detail. The wiring diagram of the motor in this invention is common knowledge in the field, and its working principle is already known technology. The appropriate model is selected based on actual use; therefore, the control method and wiring layout of the motor will not be explained in detail.
[0036] Working principle and process: First, the operator pulls the positioning rod 33, which disengages from the insertion hole on the surface of the mounting strip 31. At this time, the return spring 34 is stretched. Then, the mounting groove 32 on the back plate 21 is aligned with the mounting strip 31 on one side of the analyzer body 1 for a snap-fit operation. After snap-fit, the positioning rod 33 is released. Under the elastic force of the return spring 34, the positioning rod 33 will insert into the insertion hole, thus firmly installing the back plate 21 on the analyzer body 1. Through the cooperation of the positioning rod 33 and the mounting strip 31, the back plate 21 can be easily removed from the analyzer body 1. Similarly, it can be installed. The whole process is simple and convenient to operate without the need for complicated tools, which greatly improves the efficiency of installation and disassembly. It allows the operator to install or disassemble the portable component 2 at any time according to actual needs, increasing the flexibility of instrument use.
[0037] Pressing the pressure block 27 on the back clip 22 with your finger allows for better application of force due to the arc-shaped groove on the surface of the pressure block 27. The back clip 22 then rotates around the movable rod 23, while the torsion spring 24 deforms and stores elastic potential energy. After opening the back clip 22 to a suitable angle, it is clipped to the waist of the patient's pants. The operator then releases the pressure block 27, causing the torsion spring 24 to release its elastic potential energy, which in turn rotates the back clip 22 back to its original position, firmly clamping the pants. The rubber protrusions 25 on the side of the back clip 22 closest to the analyzer body 1 increase friction and prevent the analyzer from slipping. Meanwhile, the adhesive piece 26 between the two back plates 21 is made of silicone, which better conforms to the patient's waist, improving carrying comfort. After the patient has the analyzer on, they exhale according to the operating instructions. The exhaled air enters the analyzer body 1 for detection. The analyzer body 1 analyzes and detects nitric oxide in the exhaled air and displays the results for easy viewing by the patient or medical staff.
[0038] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A portable breath nitric oxide analyser comprising an analyser body (1) characterised in that: The analyzer body (1) has a portable component (2) mounted on its surface; The portable component (2) includes a back plate (21). The back plate (21) is symmetrically arranged on one side of the analyzer body (1) near the waist. A back clip (22) is arranged in a through groove on the surface of the back plate (21). A movable rod (23) is installed on the surface of the back clip (22). Both ends of the movable rod (23) pass through the back clip (22) and are rotatably connected in the through groove on the surface of the back plate (21). A torsion spring (24) is symmetrically sleeved on the surface of the movable rod (23). One end of the torsion spring (24) is connected to the back clip (22), and the other end of the torsion spring (24) is installed in the through groove on the surface of the back plate (21). A disassembly component (3) is installed on the surface of the analyzer body (1).
2. The portable breath nitric oxide analyzer according to claim 1, characterized in that: The back clip (22) has several rubber bumps (25) installed on the side surface near the analyzer body (1).
3. The portable breath nitric oxide analyzer according to claim 1, characterized in that: Multiple bonding pads (26) are evenly installed between the two backplates (21), and the bonding pads (26) are made of silicone material.
4. A portable breath nitric oxide analyzer according to claim 1, characterized in that: The upper part of the back clip (22) is designed with a "sloping surface structure".
5. A portable breath nitric oxide analyzer according to claim 1, characterized in that: The upper part of the back clip (22) is equipped with a pressing block (27), and the surface of the pressing block (27) is provided with an arc-shaped groove that is adapted to the finger.
6. A portable breath nitric oxide analyzer according to claim 1, characterized in that: The disassembly assembly (3) includes a mounting strip (31). The mounting strip (31) is symmetrically mounted on one side surface of the analyzer body (1). The surface of the back plate (21) is provided with a mounting groove (32) that is compatible with the mounting strip (31). The mounting groove (32) and the mounting strip (31) are engaged. A positioning rod (33) is slidably connected in a through hole on the surface of the back plate (21). One end of the positioning rod (33) passes through the back plate (21) and is inserted into a hole on the surface of the mounting strip (31).
7. A portable breath nitric oxide analyzer according to claim 6, characterized in that: A return spring (34) is sleeved on the surface of the positioning rod (33). One end of the return spring (34) is connected to the positioning rod (33), and the other end of the return spring (34) is connected to the back plate (21).