Portable child lung function detection device
By introducing a foldable connecting tube design into the pediatric lung function testing device, the problem of excessive size of existing devices has been solved, achieving portability.
Patent Information
- Application Number
- CN202422227828.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-11
- Publication Date
- 2025-10-31
- Estimated Expiration
- 2034-09-11
AI Technical Summary
The connecting tubes of existing pediatric lung function testing devices cannot be folded and stored, resulting in a large device size that is inconvenient to carry.
A portable pediatric lung function testing device was designed. The device connects the testing mask and the connecting tube via a flexible tube. A limiting seat and a rubber seat are set at the bottom of the testing mask. The connecting tube can be folded and stored, and is fixed with a limiting buckle to reduce its size.
The connecting tubes can be folded and stored, significantly reducing the size of the device and making it more portable.
Smart Images

Figure CN223489713U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of lung function testing technology, and relates to a portable lung function testing device for children. Background Technology
[0002] As is widely known, pulmonary function testing in children is an essential examination for respiratory diseases. It plays a crucial role in the diagnosis, differential diagnosis, severity assessment, treatment evaluation, and prognosis of asthma. Currently, pulmonary function testing primarily measures the ventilation and gas exchange functions of the lungs. The test requires cooperation between the subject and the examiner. A disposable mouthpiece is connected to the pulmonary function meter. The child places their mouth on the mouthpiece, tightly sealing the opening, and pinches their nose while exhaling and exhaling through the mouthpiece. The test typically takes about 20 minutes. Pulmonary function testing is a commonly used method in respiratory medicine for assessing lung function. It also serves as a risk assessment tool for anesthesia and surgery, and for predicting postoperative recovery. This pediatric pulmonary function testing auxiliary device is connected to the pulmonary function meter and is used for exhalation and exhalation testing.
[0003] Application No. 202110813131.1 discloses an auxiliary device for pediatric pulmonary function testing, including a testing mask and elastic nasal plugs. The testing mask is connected to a connecting tube for connection to a pulmonary function meter. Two elastic nasal plugs are provided, positioned at the top outer side of the testing mask. Each elastic nasal plug includes an adjustment tube fixed to the testing mask, with a piston rod movably embedded in the adjustment tube. This invention replaces the traditional mouthpiece method for pulmonary function testing by using a testing mask, preventing air leakage outside the mouthpiece during exhalation that could affect testing accuracy. Furthermore, the elastic nasal plugs assist in sealing the subject's nose, eliminating the need for medical personnel or the subject to manually pinch the nose, making testing more convenient. Simultaneously, when the sealing airbag in the elastic nasal plug is inserted into the nasal cavity under the action of a supporting spring, the piston rod, in conjunction with the sealing piston, automatically supplies air to the sealing airbag, causing it to expand and seal, improving comfort during use.
[0004] The aforementioned detection device has a fixed connection between the mask and the connecting tube at the front end, and the connecting tube cannot be folded and stored, resulting in a large overall size of the lung detection auxiliary device, which is inconvenient to carry and needs to be improved. Summary of the Invention
[0005] The purpose of this invention is to provide a portable pediatric lung function testing device to solve the problems mentioned in the background art.
[0006] The objective of this utility model can be achieved through the following technical solutions:
[0007] A portable pediatric lung function testing device includes a testing mask, a flexible tube, a connecting tube, a connector, and a fixing strap. The front end of the testing mask is provided with a flexible tube communicating with the inside of the testing mask, and the front end of the flexible tube is connected to the connecting tube. The bottom end of the testing mask is connected to a limiting seat with a rubber seat inside, and the rubber seat has a limiting groove inside.
[0008] In the aforementioned portable pediatric lung function testing device, the testing mask has two symmetrical buckles on its side, and the buckles are internally connected to a fixing strap.
[0009] In the aforementioned portable pediatric lung function testing device, a connector is provided at the front end of the connecting tube, and the connecting tube is connected to the pulmonary function meter through the connector.
[0010] In the aforementioned portable pediatric lung function testing device, a pin is provided on the side of the limiting seat, and a limiting buckle is movably connected to the outer side of the limiting seat via the pin.
[0011] In the aforementioned portable pediatric lung function testing device, the testing mask has circular interfaces on both sides, an elastic membrane on the outer side of the circular interfaces, and an inner groove communicating with the circular interfaces on the inner wall of the testing mask, with a supporting mesh frame inside the inner groove.
[0012] In the aforementioned portable pediatric lung function testing device, a sealing ring is provided at the front end of the testing mask, and a tube guide groove that mates with the connecting tube is provided at the bottom end of the testing mask.
[0013] Compared with existing technologies, the advantages of this portable pediatric lung function testing device are:
[0014] This application connects the testing mask and the connecting tube via a flexible tube. In this way, the connecting tube can be folded inward, and the bottom of the testing mask also has a limiting seat and a rubber seat set inside the limiting seat. When the connecting tube needs to be stored, it can be folded downward, and then the end of the connecting tube can be directly locked inside the limiting groove. In order to ensure the limiting stability of the connecting tube, the limiting buckle can also be rotated to further limit the end of the connecting tube. In this way, after the connecting tube is folded and stored, the volume of the entire pulmonary function assist device can be greatly reduced, making it more convenient to carry. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the structure of the portable pediatric lung function testing device of this utility model.
[0016] Figure 2 This is an enlarged structural diagram of the limiting seat of the portable children's lung function testing device of this utility model.
[0017] In the diagram, 1. Testing mask; 2. Flexible tube; 3. Connecting tube; 4. Connector; 5. Circular interface; 6. Elastic membrane; 7. Supporting mesh frame; 8. Buckle; 9. Fixing strap; 10. Limiting seat; 11. Limiting buckle; 12. Pin; 13. Rubber seat; 14. Limiting groove. Detailed Implementation
[0018] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.
[0019] A portable pediatric lung function testing device includes a testing mask 1, a flexible tube 2, a connecting tube 3, a connector 4, and a fixing strap 9. The front end of the testing mask 1 is provided with a flexible tube 2 that communicates with the inside of the testing mask 1. The front end of the flexible tube 2 is connected to the connecting tube 3. The bottom end of the testing mask 1 is connected to a limiting seat 10, which has a rubber seat 13 inside. The rubber seat 13 has a limiting groove 14 inside, which mainly limits the connecting tube 3.
[0020] like Figure 1 , Figure 2 As shown, the portable children's lung function testing device of this utility model has two symmetrical buckles 8 on the side of the testing mask 1. The buckles 8 are connected to a fixing strap 9 inside, which is used to fix the testing mask 1 when wearing it.
[0021] like Figure 1 , Figure 2 As shown, the portable pediatric pulmonary function testing device of this utility model has a connector 4 at the front end of the connecting tube 3. The connecting tube 3 is connected to the pulmonary function meter through the connector 4. The pulmonary function meter of this application is a publicly available device.
[0022] like Figure 1 , Figure 2 As shown, the portable pediatric lung function testing device of this utility model has a pin 12 on the side of the limiting seat 10, and a limiting buckle 11 is movably connected to the outside of the limiting seat 10 through the pin 12.
[0023] like Figure 1 , Figure 2As shown, this utility model of a portable pediatric lung function testing device specifically includes a testing mask 1 with circular interfaces 5 on both sides, an elastic membrane 6 on the outer side of the circular interfaces 5, and an inner groove communicating with the circular interfaces 5 on the inner wall of the testing mask 1. A supporting mesh frame 7 is provided inside the inner groove. When the subject inhales, the elastic membrane 6 on the circular interface 5 is in a concave state, and when the subject exhales, the elastic membrane 6 on the circular interface 5 is in a convex state. The state of the elastic membrane 6 can be used to intuitively reflect the subject's inhalation and exhalation status in real time, which is convenient for medical personnel to understand whether the subject's operation is standardized and facilitates the normal conduct of the test.
[0024] like Figure 1 , Figure 2 As shown, the portable children's lung function testing device of this utility model has a sealing ring at the front end of the testing mask 1 and a tube guide groove at the bottom end of the testing mask 1 that cooperates with the connecting tube 3. The tube guide groove guides the connecting tube 3, and the sealing ring improves the sealing performance of the mask when it is worn.
[0025] This utility model relates to a portable pediatric pulmonary function testing device. The device connects a testing mask 1 and a connecting tube 3 via a flexible tube 2. The connecting tube 3 is movable and can be folded towards the testing mask 1. The testing mask 1 has a limiting seat 10 at its bottom and a rubber seat 13 inside the limiting seat 10. When the connecting tube 3 needs to be stored, it can be folded downwards, and the end of the connecting tube 3 is directly locked inside the limiting groove 14. To ensure the stability of the limiting of the connecting tube 3, the limiting buckle 11 can be rotated to further limit the end of the connecting tube 3. This significantly reduces the overall size of the pulmonary function assist device after the connecting tube 3 is folded and stored, making it more convenient to carry. In use, the connector 4 is directly connected to the pulmonary function meter, and the user wears the testing mask 1 and breathes in and out directly inside the mask. The pulmonary function meter reads the breathing data to test pulmonary function.
[0026] Contents not described in detail herein are existing technologies known to those skilled in the art. The specific embodiments described herein are merely illustrative examples illustrating the spirit of this invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this invention or exceeding the scope defined by the appended claims.
Claims
1. A portable pediatric lung function testing device, comprising a testing mask (1), a flexible tube (2), a connecting tube (3), a connector (4), and a fixing strap (9), characterized in that, The front end of the testing mask (1) is provided with a flexible tube (2) that communicates with the inside of the testing mask (1). The front end of the flexible tube (2) is connected to a connecting tube (3). The bottom end of the testing mask (1) is connected to a limiting seat (10) and a rubber seat (13) is provided inside. A limiting groove (14) is opened inside the rubber seat (13).
2. The portable pediatric lung function testing device according to claim 1, characterized in that, The testing mask (1) has two symmetrical buckles (8) on its side, and the buckles (8) are connected to a fixing strap (9).
3. The portable pediatric lung function testing device according to claim 1, characterized in that, The front end of the connecting tube (3) is provided with a connector (4), and the connecting tube (3) is connected to the pulmonary function meter through the connector (4).
4. The portable pediatric lung function testing device according to claim 1, characterized in that, A pin (12) is provided on the side of the limiting seat (10), and a limiting buckle (11) is movably connected to the outside of the limiting seat (10) through the pin (12).
5. The portable pediatric lung function testing device according to claim 1, characterized in that, The testing mask (1) has circular interfaces (5) on both sides, and an elastic membrane (6) is provided on the outer side of the circular interfaces (5). The inner wall of the testing mask (1) has an inner groove that communicates with the circular interfaces (5), and a support mesh frame (7) is provided inside the inner groove.
6. The portable pediatric lung function testing device according to claim 1, characterized in that, The front end of the testing mask (1) is provided with a sealing ring, and the bottom end of the testing mask (1) is provided with a tube guide groove that cooperates with the connecting tube (3).
Citation Information
Patent Citations
Children lung function examination auxiliary device
CN114366074A