Nasal clip fixing device applied to lung function measurement and examination

By designing a nose clip fixing device that includes a clamping component and a buffer structure, the problems of slippage and poor sealing of existing nose clips are solved, achieving stable clamping and convenient replacement, and improving the accuracy of lung function tests and user comfort.

CN224125941UActive Publication Date: 2026-04-17NANAN HOSPITAL
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NANAN HOSPITAL
Filing Date
2025-01-09
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

Existing nose clips are prone to slipping during lung function tests, have poor sealing, and affect test results. They are also uncomfortable to use, inconvenient to replace, and pose safety and hygiene issues.

Method used

A nose clip fixing device was designed, which includes a clamping component and a buffer structure. The motor drives the positive and negative screws to move the slide and support rod. The clamping plate tightly clamps the nose and is equipped with a limit block and a buffer spring to achieve stable clamping and convenient replacement of the anti-slip pad.

Benefits of technology

The nose clip has improved sealing and stability, reduced the risk of slippage, enhanced user comfort and hygiene, facilitated quick replacement of the anti-slip pad, and improved the accuracy and practicality of the examination.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a nasal splint fixing device applied to lung function measurement and examination, which comprises a working box, a rectangular groove is arranged on the side wall of the working box, a movable groove is arranged on the top wall of the working box, a clamping component is arranged in the working box, and a motor, a positive and negative screw rod, a sliding seat and a limiting rod are arranged in the clamping component. The side wall of the motor is fixedly connected to the inner side wall of the working box, a positive and negative screw is installed at the output end of the side face of the motor, the side wall of the positive and negative screw is movably connected to the inner side wall of the working box through a bearing, sliding bases are symmetrically connected to the positive and negative screw, supporting rods are fixedly connected to the side walls of the sliding bases, and the side ends of the supporting rods extend outwards through rectangular grooves. Clamping plates are fixedly connected to the opposite side walls of the supporting rods, the buffering pads are arranged, clamping of the limiting blocks is more stable, the limiting plates, the limiting grooves and the movable rods are used, so that the pressing plates move linearly, stability is high, non-slip mats are convenient to disassemble and assemble, cleanliness and sanitation are achieved, practicability is higher, and flexibility is higher.
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Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically a nose clip fixation device used in lung function testing. Background Technology

[0002] Pulmonary function testing is an essential examination for respiratory diseases. It is primarily used to assess airway patency and lung capacity. It is of significant clinical value in the early detection of lung and airway lesions, assessing disease severity and prognosis, evaluating the effectiveness of drugs or other treatments, identifying the cause of dyspnea, diagnosing lesion sites, evaluating lung function tolerance to surgery or physical exertion, and monitoring critically ill patients. During pulmonary function testing, patients inhale and exhale through their mouths. Therefore, a nose clip is usually used to hold the patient's nose in place to reduce errors. However, existing nose clips typically have a scissor-like structure, which easily slips off on noses with flat bridges and wide nostrils, reducing their practicality. Furthermore, poor sealing allows a weak airflow into the nasal cavity, affecting the test results.

[0003] In response, Chinese utility model patent CN215839047U discloses a nasal clip for pulmonary function testing, comprising a fixed tube, a movable rod, a power compartment, and two clamping components. One end of the fixed tube is closed, and an electromagnet is installed inside the closed end. A return spring, connected to the inner wall of the closed end of the fixed tube, is fitted over the electromagnet. The movable rod is slidably inserted into the open end of the fixed tube, and one end of the movable rod extending into the fixed tube is fixedly connected to the end of the return spring away from the electromagnet via an iron part. The power compartment is detachably connected to the closed end of the fixed tube to open and close the power compartment. A battery electrically connected to the electromagnet is installed inside the power compartment, and the battery is electrically connected to a power switch for connecting and disconnecting the electromagnet circuit. The two clamping components are respectively fixedly connected to the end of the power compartment away from the fixed tube and the end of the movable rod extending out of the fixed tube. This utility model can vertically clamp the nostrils from both sides of the bridge of the nose, preventing slippage and increasing sealing.

[0004] To address the issue of excessively hard materials in nasal clips, medical staff typically wrap a layer of gauze around a steel nasal clip. However, this method is complex, still suffers from poor comfort, lack of cushioning, and excessive clamping force. Furthermore, for safety and hygiene reasons, the gauze needs to be replaced frequently, which is inconvenient, time-consuming, and laborious. Therefore, we propose a nasal clip fixation device for pulmonary function testing to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a nasal clip fixation device for pulmonary function testing, in order to solve the problems mentioned in the background art.

[0006] A nasal clip fixation device for pulmonary function testing includes a working box with a rectangular groove on the side wall and a movable groove on the top wall. A clamping assembly is installed inside the working box, which contains a motor, a positive and negative screw, a slide block, and a limiting rod. The side wall of the motor is fixedly connected to the inner side wall of the working box. A positive and negative screw is installed on the output end of the motor. The side walls of the positive and negative screw are movably connected to the inner side wall of the working box through bearings. Slide blocks are symmetrically connected to the positive and negative screws. A support rod is fixedly connected to the side wall of the slide block. The side end of the support rod extends outward through the rectangular groove. A clamping plate is fixedly connected to the opposite side wall of the support rod.

[0007] The clamping plate has a slot on its side wall, in which a limit block is movably inserted. An anti-slip pad is fixedly connected to the side wall of the limit block. The clamping plate is equipped with a snap-fit ​​assembly, which includes an installation groove, a limit plate, a movable rod, a pressure plate, and a buffer spring. The inner side wall of the slot has symmetrical installation grooves, and the inner wall of the installation groove is fixedly connected to a limit plate. The limit plate has multiple sets of limit grooves, in which a movable rod is movably inserted. One end of the movable rod is fixedly connected to the pressure plate, and a buffer pad is fixedly connected to the side wall of the pressure plate. The side wall of the buffer pad movably abuts against the side wall of the limit block. The other end of the movable rod is fixedly connected to the movable plate, and multiple sets of buffer springs are fixedly connected to the side wall of the movable plate. The side ends of the buffer springs are fixedly connected to the inner side wall of the installation groove.

[0008] Preferably, the outer wall of the work box has a groove, and multiple sets of control keys are fixedly installed in the groove.

[0009] Preferably, a handle is fixedly connected to the outer wall of the work box, and a wear-resistant pad is fixedly connected to the outer wall of the handle.

[0010] Preferably, a limiting hole is provided on the bottom side of the slide block, and a limiting rod is movably inserted into the limiting hole. Both ends of the limiting rod are fixedly connected to the inner side wall of the work box.

[0011] Preferably, a support spring is movably sleeved on the limiting rod, and the two ends of the support spring are fixedly connected to the side walls of the two sets of slide blocks.

[0012] Preferably, the top wall of the slide extends upward through the movable groove, and a baffle is fixedly connected to the top wall of the slide.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This invention utilizes a starting motor to rotate a forward and reverse screw, which in turn moves two sets of sliding blocks closer together. This, in turn, moves two sets of support rods closer together, causing two clamping plates and anti-slip pads to press against the patient's nose, securing it tightly. Limiting holes and corresponding limiting rods allow for linear movement of the sliding blocks, making adjustment more convenient. Support springs enhance the stability of the sliding blocks. A clamping assembly allows for quick and easy clamping of the patient's nose, resulting in a tighter grip and better examination results. Limiting blocks and locking components facilitate quick replacement of the anti-slip pads. A buffer spring pushes a movable plate, which in turn moves multiple sets of movable rods. These rods push a pressure plate closer to the limiting block, clamping it. The buffer pads further ensure a more secure clamping of the limiting block. The combination of limiting plates, limiting grooves, and movable rods allows for linear movement of the pressure plate with high stability. The anti-slip pads are easy to install and remove, promoting hygiene and enhancing practicality and flexibility. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the internal structure of the working box in this utility model;

[0017] Figure 3 This is a top view of the support rod structure in this utility model;

[0018] Figure 4 This is a schematic diagram of the internal structure of the clamping plate in this utility model.

[0019] In the diagram: 1. Working box; 101. Rectangular groove; 102. Movable groove; 103. Groove; 104. Control key; 105. Handle; 106. Wear-resistant pad; 2. Clamping assembly; 21. Motor; 22. Positive and negative screws; 23. Slide; 24. Limiting hole; 25. Limiting rod; 26. Support spring; 27. Baffle; 3. Support rod; 4. Clamping plate; 401. Slot; 5. Anti-slip pad; 6. Limiting block; 7. Snap-fit ​​assembly; 71. Mounting groove; 72. Limiting plate; 73. Limiting groove; 74. Movable rod; 75. Pressure plate; 76. Buffer pad; 77. Movable plate; 78. Buffer spring. Detailed Implementation

[0020] 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.

[0021] Example 1:

[0022] Please see Figure 1-2 This utility model provides a technical solution: a nasal clip fixing device for lung function testing, including a working box 1. A rectangular groove 101 is formed on the side wall of the working box 1, and a movable groove 102 is formed on the top wall of the working box 1. A clamping assembly 2 is installed inside the working box 1, containing a motor 21, a reversing screw 22, a slide block 23, and a limiting rod 25. The side wall of the motor 21 is fixedly connected to the inner side wall of the working box 1. The reversing screw 22 is installed on the side output end of the motor 21, and the side wall of the reversing screw 22 is movably connected to the working box 1 via bearings. On the inner wall of the working box 1, slides 23 are symmetrically connected to the positive and negative screws 22. Support rods 3 are fixedly connected to the side walls of the slides 23. The side ends of the support rods 3 extend outward through the rectangular grooves 101. Clamping plates 4 are fixedly connected to the opposite side wall of the support rods 3. The positive and negative screws 22 are rotated by the starting motor 21. The positive and negative screws 22 drive the two sets of slides 23 to move. The two sets of slides 23 move closer to each other, thereby driving the two sets of support rods 3 to move closer to each other. This causes the two sets of clamping plates 4 to drive the anti-slip pads 5 to abut against the patient's nose, clamping the patient's nose tightly.

[0023] It should be noted that the clamping plate 4 has a slot 401 on its side wall, and a limit block 6 is movably inserted into the slot 401. An anti-slip pad 5 is fixedly connected to the side wall of the limit block 6. The clamping plate 4 is provided with a snap-fit ​​assembly 7, which includes an installation groove 71, a limit plate 72, a movable rod 74, a pressure plate 75, and a buffer spring 78. The inner side wall of the slot 401 has symmetrical installation grooves 71, and the inner wall of the installation groove 71 is fixedly connected to the limit plate 72. The limit plate 72 has multiple sets of limit grooves 73, and a movable rod 74 is movably inserted into the limit groove 73. One end of the movable rod 74 is fixedly connected to the pressure plate 75. A buffer pad 76 is fixedly connected to the side wall of the pressure plate 75, and the side wall of the buffer pad 76 movably abuts against the side wall of the limit block 6. The other end of the movable rod 74 is fixedly connected to the movable plate 78. On the upper part 7, multiple sets of buffer springs 78 are fixedly connected to the side wall of the movable plate 77. The side ends of the buffer springs 78 are fixedly connected to the inner side wall of the mounting groove 71. By setting a limit block 6 to cooperate with the snap-fit ​​assembly 7, it is easy to quickly replace the anti-slip pad 5. By setting the buffer springs 78, the buffer springs 78 push the movable plate 77, the movable plate 77 pushes multiple sets of movable rods 74 to move. The movable rods 74 push the pressure plate 75 close to the limit block 6 to clamp the limit block 6. By setting a buffer pad 76, it is easier to clamp the limit block 6 more firmly. By setting the limit plate 72, the limit groove 73 and the movable rods 74, the pressure plate 75 can move linearly with strong stability. It is convenient to disassemble and assemble the anti-slip pad 5, which is cleaner and more hygienic, more practical and more flexible.

[0024] Example 2:

[0025] Please see Figure 3 and Figure 4 This is the second embodiment of the present invention, which is based on the previous embodiment;

[0026] Specifically, a limiting hole 24 is provided on the bottom side of the slide 23, and a limiting rod 25 is movably inserted into the limiting hole 24. Both ends of the limiting rod 25 are fixedly connected to the inner side wall of the work box 1. By setting the limiting hole 24 in conjunction with the limiting rod 25, the slide 23 can move linearly, making adjustment more convenient.

[0027] It should be noted that a support spring 26 is movably sleeved on the limit rod 25. The two ends of the support spring 26 are fixedly connected to the side walls of the two sets of slides 23. By setting the support spring 26, the movement stability of the slides 23 is improved.

[0028] It should be noted that the top wall of the slide 23 extends upward through the movable groove 102, and a baffle 27 is fixedly connected to the top wall of the slide 23.

[0029] In addition, a groove 103 is provided on the outer wall of the work box 1, and multiple sets of control keys 104 are fixedly installed in the groove 103.

[0030] Specifically, a handle 105 is fixedly connected to the outer wall of the work box 1, and a wear-resistant pad 106 is fixedly connected to the outer wall of the handle 105, which makes it easy to pick up the whole device, making it more practical and convenient.

[0031] Please see Figures 1 to 4 In use, this invention utilizes a motor 21 to rotate a forward and reverse screw 22, which in turn moves two sets of slides 23 closer together. This, in turn, moves two sets of support rods 3 closer together, causing the two sets of clamping plates 4 and anti-slip pads 5 to press against the patient's nose, securing the nose tightly. Limiting holes 24, used in conjunction with limiting rods 25, allow for linear movement of the slides 23, making adjustment more convenient. Supporting springs 26 enhance the stability of the slides 23's movement. The clamping assembly 2 provides convenient and quick clamping of the patient's nose, resulting in a tighter grip. The inspection effect is better. By setting a limit block 6 to work with the snap-fit ​​component 7, it is easy to quickly replace the anti-slip pad 5. By setting a buffer spring 78, the buffer spring 78 pushes the movable plate 77, the movable plate 77 pushes multiple sets of movable rods 74 to move, and the movable rods 74 push the pressure plate 75 close to the limit block 6 to clamp the limit block 6. By setting a buffer pad 76, it is easier to clamp the limit block 6 more securely. By setting a limit plate 72, a limit groove 73 and movable rods 74, the pressure plate 75 can move linearly and has strong stability. The anti-slip pad 5 can be easily disassembled and installed, making it cleaner and more hygienic, more practical and more flexible.

[0032] The above are merely specific embodiments of this utility model, but the design concept of this utility model is not limited thereto. Any non-substantial improvements made to this utility model using this concept should be considered as infringing on the protection scope of this utility model.

Claims

1. A nose clip fixing device applied to a lung function test examination, comprising a working box (1), characterized in that: The work box (1) has a rectangular groove (101) on its side wall and a movable groove (102) on its top wall. The work box (1) is equipped with a clamping assembly (2). The clamping assembly (2) contains a motor (21), a positive and negative screw (22), a slide (23), and a limiting rod (25). The side wall of the motor (21) is fixedly connected to the inner side wall of the work box (1). The output end of the motor (21) is equipped with a positive and negative screw (22). The side wall of the positive and negative screw (22) is movably connected to the inner side wall of the work box (1) through a bearing. The slide (23) is symmetrically connected to the positive and negative screw (22). The side wall of the slide (23) is fixedly connected to a support rod (3). The side end of the support rod (3) extends outward through the rectangular groove (101). The side wall of the support rod (3) is fixedly connected to a clamping plate (4). The clamping plate (4) has a slot (401) on its side wall. A limiting block (6) is movably inserted into the slot (401). An anti-slip pad (5) is fixedly connected to the side wall of the limiting block (6). A snap-fit ​​assembly (7) is provided inside the clamping plate (4). The snap-fit ​​assembly (7) contains an installation groove (71), a limiting plate (72), a movable rod (74), a pressure plate (75), and a buffer spring (78). The inner side wall of the slot (401) has symmetrically provided installation grooves (71). A limiting plate (72) is fixedly connected to the inner wall of the installation groove (71). Multiple sets of limiting grooves (73) are opened on the plate. A movable rod (74) is movably inserted into the limiting groove (73). One end of the movable rod (74) is fixedly connected to the pressure plate (75). A buffer pad (76) is fixedly connected to the side wall of the pressure plate (75). The side wall of the buffer pad (76) movably abuts against the side wall of the limiting block (6). The other end of the movable rod (74) is fixedly connected to the movable plate (77). Multiple sets of buffer springs (78) are fixedly connected to the side wall of the movable plate (77). The side end of the buffer spring (78) is fixedly connected to the inner side wall of the mounting groove (71).

2. A nose clip fixation device for use in pulmonary function test examination according to claim 1, characterized in that: The slide (23) has a limiting hole (24) on its bottom side, and a limiting rod (25) is movably inserted into the limiting hole (24). Both ends of the limiting rod (25) are fixedly connected to the inner side wall of the work box (1).

3. The nose clip fixation device for pulmonary function test according to claim 1, wherein: A support spring (26) is movably sleeved on the limiting rod (25), and the two ends of the support spring (26) are fixedly connected to the side walls of the two sets of slides (23).

4. The nose clip fixation device for pulmonary function test according to claim 1, wherein: The top wall of the slide (23) extends upward through the movable groove (102), and a baffle (27) is fixedly connected to the top wall of the slide (23).

5. The nose clip fixation device for pulmonary function test according to claim 1, wherein: The outer wall of the work box (1) is provided with a groove (103), and multiple sets of control keys (104) are fixedly installed in the groove (103).

6. The nose clip securement device for pulmonary function testing according to claim 1, wherein: A handle (105) is fixedly connected to the outer wall of the work box (1), and a wear-resistant pad (106) is fixedly connected to the outer wall of the handle (105).

Citation Information

Patent Citations

  • Nose clip for lung function examination

    CN215839047U