A breath hold nose clip device

Abstract

The utility model discloses a kind of breath-holding nose clamp devices, belong to breath-holding nose clamp technical field, including faceplate, for the arc-shaped matrix of adaptation with human face profile, and be fixed to human face by fixing member;Closed component, including the air bag one of being symmetrically arranged in the inside nose ala projection area of faceplate and the air bag two of being arranged in the inside faceplate opposite lip part, air bag one is used to close both sides of nostril, air bag two is used to close lip part;Inflating assembly, for the air bag one and air bag two are inflated;Controller, for the running state of the inflating assembly is controlled according to preset program;Remote switch, with controller electric connection, be arranged in the outside faceplate patient accessible area, trigger when control inflating assembly reverse exhaust makes air bag one, air bag two quickly contract, can be independently released air bag one and air bag two to nose lip closure when breath-holding difficulty occurs during patient breath-holding, reduce the anxiety or artifact caused by forced breath-holding.

Description

Technical Field

[0001] This utility model relates to the field of breath-holding nose clip technology, and in particular to a breath-holding nose clip device. Background Technology

[0002] Suppressing motion artifacts is one of the challenges of MRI scanning. Motion artifacts are caused by both patient movement and physiological movements such as breathing, gastrointestinal motility, and vascular pulsation. This is especially true for chest and abdominal scans, where controlling respiratory motion is crucial to reducing artifacts. The best respiratory control method is breath-holding, which can be performed during either inhalation or exhalation. For routine MRI scans, end-expiratory breath-holding is generally recommended. Compared to end-inspiratory breath-holding, end-expiratory breath-holding results in less change in the position of abdominal organs, a more fixed and precise slice, and better repeatability. However, end-expiratory breath-holding requires higher patient endurance, while end-inspiratory breath-holding requires slightly less endurance but may have greater variability in the degree of breath-holding.

[0003] During an MRI scan of the chest and abdomen, the patient needs to correctly wear the breath-holding nose clip on their face. The nose clip holds the patient's nose, and the jaw support supports the patient's jaw. By squeezing these components, the patient's nasal cavity and mouth are simultaneously blocked, ensuring that they cannot breathe through their mouth while holding their breath. This allows the patient to hold their breath more stably during the examination, reducing the impact of respiratory movements on image quality. Specifically, the nose clip and jaw support are respectively airbag one and airbag two. Airbag one and airbag two are connected to the compression airbag via an inflation tube. Applying pressure to the compression airbag controls airbag one and airbag two. The airbags are inflated, but during breath-holding, the airbags need to be continuously pressed to keep them inflated and seal the nose and lips. Alternatively, a valve can be installed on the inflation line of the airbags to close them and seal the airbags. Since the airbags are held in the patient's hand, medical staff need to remind the patient in advance when they need to hold their breath during the examination so that the patient can prepare. For patients who are not familiar with the operation, they need to be explained before the examination is performed, which affects the efficiency of the examination. If a medical staff member is specifically assigned to assist the patient in squeezing and pressing the airbags, it will result in a waste of medical resources.

[0004] Secondly, after inflation, the airbag may need to be manually pressed after opening the valve or allowed to leak air naturally to contract and release the closure of the nostrils and lips. Lacking an active control mechanism, when patients have difficulty holding their breath, they cannot expel air quickly, which may cause suffocation anxiety or respiratory muscle fatigue caused by forced breath-holding, especially in elderly patients or patients with pulmonary insufficiency, where the risk is significant.

[0005] Therefore, we propose a breath-holding nose clip device to solve the above-mentioned problems. Utility Model Content

[0006] This utility model provides a breath-holding nose clip device to solve the aforementioned technical problems.

[0007] The present invention adopts the following technical solution: a faceplate, which is an arc-shaped base adapted to the contour of the human face and fixed to the human face by a fastener; a sealing component, including a pair of symmetrically arranged airbags one on the inner side of the faceplate in the projection area of ​​the nose wing and an airbag two on the inner side of the faceplate opposite the lips, wherein the airbag one is used to close the nostrils on both sides and the airbag two is used to close the lips; an inflation component for differentially inflating the airbag one and the airbag two; a controller electrically connected to the inflation component for controlling the operating state of the inflation component according to a preset program; and a remote switch electrically connected to the controller, located in the patient-accessible area on the outer side of the faceplate, which, when triggered, controls the inflation component to deflate in reverse, causing the airbag one and the airbag two to contract rapidly.

[0008] Furthermore, the inflation assembly includes an inflation pump, the outlet of which is connected to an inflation main pipe. The free end of the inflation main pipe is connected to airbag one and airbag two via inflation branch pipe one and inflation branch pipe two, respectively. Two flow valves are provided, which are respectively installed on inflation branch pipe one and inflation branch pipe two, for monitoring and controlling the gas flow rate entering airbag one and airbag two. Two miniature piezoresistive sensors are provided, which are respectively installed on the inner walls of airbag one and airbag two, for monitoring the gas pressure in airbag one and airbag two.

[0009] Furthermore, it also includes support ribs, which are symmetrically arranged on both sides of the second airbag and fixedly connected to the inner side of the faceplate, so that a gap channel is formed between the second airbag and the lips to maintain spontaneous breathing in a non-breath-holding state.

[0010] Furthermore, the fixing component includes two ear loops, one end of which is connected to both sides of the faceplate, and the tail ends of the two ear loops are detachably connected by a connector; and a fixing strap, which is set below the faceplate by an adjustable strap, and the two ends of the fixing strap wrap around the cheeks and neck of the human body and are detachably connected by a connector.

[0011] Furthermore, the inflated cross-section of the second airbag is arc-shaped, and the outer wall of the second airbag is detachably connected with a protective film.

[0012] Furthermore, it also includes a voice prompt module, integrated into the controller, used to issue a "please close your breath" voice command through a speaker before inflation.

[0013] The above-mentioned technical solutions adopted in the embodiments of this utility model can achieve the following beneficial effects:

[0014] By placing airbags one and two on the inside of the faceplate, which are used to seal the nostrils and lips respectively, the device assists patients in performing nasal and lip coordinated breath-holding during MRI chest and abdominal examinations. Patients only need to fix the faceplate to their face without any other steps, making it easy to use. At the same time, by setting up a controller and remote switch, the device can automatically release the seal of airbags one and two on the nose and lips when the patient has difficulty holding their breath, reducing anxiety or artifacts caused by forced breath-holding. Attached Figure Description

[0015] The accompanying drawings, which are included to provide a further understanding of the present invention and constitute a part of this invention, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0016] Figure 1 This is a first-view perspective three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is an enlarged structural diagram of point A in this utility model;

[0018] Figure 3 This is a second-view perspective three-dimensional structural diagram of the present invention;

[0019] Figure 4 This is an enlarged structural diagram of point B in this utility model;

[0020] Figure 5 This is a front view schematic diagram of the structure of this utility model without the operating table;

[0021] Figure 6 This is a side cross-sectional view of the structure of the present invention without the operating table.

[0022] Figure Labels

[0023] Faceplate 1, Airbag 1, Airbag 2, Inflation assembly 4, Controller 5, Remote switch 6, Inflation pump 7, Flow valve 8, Support rib 9, Ear loops 10, Fixing strap 11, Control panel 12, Velcro 13, Inflation manifold 1 14, Inflation manifold 2 15, Adjustment strap 16, Inflation main tube 17. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0025] In clinical examinations, some middle-aged and elderly patients may experience difficulty holding their breath without external assistance, requiring assistance from themselves or family members to pinch their nose. When breath-holding is ineffective, multiple breath-holding attempts are necessary to obtain a suitable image for diagnosis. This is especially problematic for patients with frozen shoulder, those with severe conditions and weakness, and young children who have difficulty communicating and cooperating with breathing commands. Family members are often required to accompany the patient during the examination and assist with nose pinching. To address these issues, existing technologies have designed a breath-holding nose clip to assist patients. This clip mainly includes a nose-clamping component and a jaw-support component. Specifically, the nose-clamping component and jaw-support component are airbag 2 and airbag 3, respectively. Airbag 2 and airbag 3 are connected to a compression airbag via an inflation tube. Applying pressure to the compression airbag inflates airbag 2 and airbag 3. However, during breath-holding... During the procedure, the airbags need to be continuously pressed to keep airbags 1 and 2 inflated to seal the nose and lips. Since the patient retains control, medical staff need to remind the patient in advance when they need to hold their breath during the examination so that the patient can prepare. For patients who are not familiar with the operation, they need to be explained before the examination is performed, which affects the efficiency of the examination. If a medical staff member is specifically assigned to assist the patient in pressing the airbags, it will result in a waste of medical resources. Secondly, after inflation, the airbags need to be manually pressed or released by natural leakage, lacking an active control mechanism. When the patient has difficulty holding their breath, they cannot expel air quickly (exhalation time of traditional devices is >5 seconds), which may cause suffocation anxiety (patient subjective discomfort score ≥4 / 5) or respiratory muscle fatigue caused by forced breath-holding, especially in elderly patients or patients with pulmonary insufficiency.

[0026] To address the aforementioned technical problems, this utility model proposes the following solutions, such as... Figure 1-4As shown, a breath-holding nose clip device includes a faceplate 1 adapted to the contours of the human face. The inner side of the faceplate 1 has an airbag 2 for sealing the nostrils and an airbag 3 for sealing the lips. The shape of the airbag 2 matches the shape of the nose and the contour of the middle part of glasses. The airbag 2 corresponds to the projection area of ​​the nasal wings. When the faceplate 1 is attached to the face, the sides of the airbag 2 are precisely positioned on either side of the nasal wings, and the airbag 3 corresponds to the lips. The inner side of the faceplate 1 has a flexible sealing layer made of medical-grade gel material with a thickness of 1-3 mm, used to conform to the face and buffer pressure. An array of breathable holes with a pore diameter of 0.5-1 mm is provided in the interlayer between the flexible sealing layer and the faceplate 1. mm in diameter and with a porosity ≥30%, it is used to expel facial sweat and moisture. An inflation assembly 4 is also included for differentiated inflation of airbag 2 and airbag 3. This inflation assembly 4 mainly includes an inflation pump 7 and flow valves 8. The outlet of the inflation pump 7 is connected to an inflation main pipe 17, and the tail end of the inflation main pipe 17 is connected to airbag 2 and airbag 3 respectively via inflation branch pipes 14 and 25 for inflating airbag 2 and airbag 3. Two flow valves 8 are provided, installed on inflation branch pipes 14 and 25 respectively, for monitoring and controlling the gas flow rate entering airbag 2 and airbag 3. The assembly also includes a controller 5 installed on the control panel 12, which works in conjunction with the inflation pump. 7 and flow valve 8 are electrically connected and used to control the operation of air pump 7 and flow valve 8 according to a preset program. In use, face plate 1 is fixed to the human face by fasteners. The fasteners can be two ear loops 10 symmetrically installed on both sides of face plate 1 and a fixing strap 11 connected to the bottom of face plate 1 by an adjusting strap 16. The ear loops 10 have ear holes. When the ear loops 10 are fastened to the ears, the tail ends of the two ear loops 10 are fixed together by a connector (which can be Velcro 13 or buckle, with Velcro 13 being preferred in this invention). Then, the position of fixing strap 11 is adjusted by adjusting the length of adjusting strap 16 so that airbag 2 3 is exactly in front of the human lips. The end of the airbag bypasses the cheek and neck and is detachably connected via a connector (which can be Velcro 13 or a snap fastener, with Velcro 13 being preferred in this invention). When the air pump 7 inflates the airbag 2 and the airbag 3, the flow valve 8 opens, and the gas enters the airbag 2 and the airbag 3 along the inflation manifold 14 and the inflation manifold 15, respectively. The airbag 2 and the airbag 3 expand under the air, sealing the nostrils and lips on both sides of the body, respectively. The inflated cross-section of the airbag 2 is D-shaped, which fits perfectly with the nostrils on both sides of the body, while the inflated cross-section of the airbag 3 is arc-shaped, which covers the upper and lower lips. The outer wall of the airbag 3 is detachably connected with a protective film, which can be a medical-grade polyurethane film with a thickness of 0.05-0.1mm thick, replaceable after single use to avoid contact with bodily fluids between patients and prevent cross-infection. During inflation, two flow valves 8 monitor and regulate the amount of gas entering airbag 1 (2) and airbag 2 (3) respectively. For example, airbag 1 (nostril) requires high pressure (10-15kPa), so flow valve 8 is set to 2L / min to ensure rapid sealing; airbag 2 (lip) requires low pressure (5-8kPa), so flow valve 8 is set to 1L / min to avoid excessive pressure on the lips. Simultaneously, a miniature piezoresistive sensor (such as a MEMS miniature piezoresistive sensor) is embedded in the inner wall of airbag 1 (2) and airbag 2 (3) respectively. The pressure signal is converted into an electrical signal (output range 0-5V, corresponding to 0-20kPa) via a Wheatstone bridge. The sensor size is ≤3mm×3mm×1mm, with a thickness of only 0.5mm, allowing direct contact with the inner wall of the airbag, affecting the inflation volume by <1%. This miniature piezoresistive sensor is used to monitor the inflation volume of airbag 1 (2) and airbag 2 (3). The pressure in airbag 3 is monitored. When one pressure sensor detects that the pressure in its corresponding airbag has reached a preset threshold, the signal is transmitted to the controller 5. The controller 5 then closes the flow valve 8 on the inflation branch of that airbag. When both pressure sensors detect that the pressure in their respective airbags has reached the preset threshold, the controller 5 controls the inflation pump 7 to shut off, preventing the airbag from over-inflating and compressing the face. To ensure the patient can breathe independently in a non-breath-holding state, support ribs 9 can be installed inside the faceplate 1 on both sides of airbag 3. These support ribs create a breathing channel between airbag 3 and the lips. The parameterized design of the height (8-12mm) and width (3-5mm) of the support ribs 9 ensures a 5-8mm breathing channel between airbag 3 and the lips, allowing the patient to breathe independently in a non-breath-holding state and preventing a drop in blood oxygen saturation. The support ribs 9 can be made of silicone or rubber to conform to the face without causing hard pressure.

[0027] Furthermore, based on the above, a voice prompt module is also installed in the controller 5. This module issues a "Please hold your breath" voice command via a speaker before inflation. The command duration is 1-3 seconds, and the volume is adjustable, prompting the patient to prepare for breath-holding, such as closing their upper and lower lips and adjusting their breathing. This prolongs the breath-holding time and shortens the examination time. To facilitate spontaneous breathing if the patient experiences difficulty breathing during breath-holding, a remote switch 6 is also provided. This remote switch 6 is wirelessly connected to the controller 5 (i.e., Bluetooth or Wi-Fi connection) and is connected to the patient-accessible area on the outside of the faceplate 1 via a connecting rope. When triggered, it controls the air pump 7 to expel air in reverse, causing the airbag 2 and the airbag... The second and third airbags rapidly contract, releasing the closure of the nostrils and lips by the first and second airbags (the reverse exhaust method can be a combination of a forward and reverse motor + planetary reducer; the motor is a brushless DC motor (BLDC) with a rated power of 30W and a speed range of 0-12000rpm, supporting instantaneous switching between forward and reverse (switching time <50ms); the reducer integrates a planetary gear reducer (reduction ratio 10:1), amplifying the motor torque to 3.5N·m, ensuring that the residual pressure of the airbag can be quickly overcome during exhaust (exhaust resistance is about 2.8N·m at 15kPa), similar to the rapid response logic of the exhaust valve of a car turbocharger, realizing the integration of "intake-exhaust" function through motor rotation switching).

[0028] The above description is merely an embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this utility model should be included within the scope of the claims of this utility model.

Claims

1. A breath-holding nose clip device, characterized in that, include: The faceplate (1) is an arc-shaped base that conforms to the contour of the human face and is fixed to the human face by fasteners; The sealing component includes a pair of symmetrically arranged airbags (2) on the inner side of the nose projection area of ​​the face-fitting plate (1) and an airbag (3) on the inner side of the face-fitting plate (1) facing the lips. The airbags (2) are used to close the nostrils on both sides, and the airbags (3) are used to close the lips. An inflation assembly (4) is used to differentially inflate airbag one (2) and airbag two (3); The controller (5) is electrically connected to the inflation assembly (4) and is used to control the operating state of the inflation assembly (4) according to a preset program; The remote switch (6) is electrically connected to the controller (5) and is located in the area accessible to the patient on the outside of the faceplate (1). When triggered, it controls the inflation assembly (4) to vent air in reverse, causing the first airbag (2) and the second airbag (3) to contract rapidly.

2. The breath-holding nose clip device according to claim 1, characterized in that: The inflation assembly (4) includes: An air pump (7) has an air outlet connected to an air main pipe (17), and the free end of the air main pipe (17) is connected to airbag one (2) and airbag two (3) respectively through air branch pipe one (14) and air branch pipe two (15). Two flow valves (8) are provided, and the two flow valves (8) are respectively installed on the first inflation manifold (14) and the second inflation manifold (15) to monitor and control the gas flow rate entering the first airbag (2) and the second airbag (3); Two miniature piezoresistive sensors are installed on the inner walls of airbag one (2) and airbag two (3) respectively to monitor the gas pressure in airbag one (2) and airbag two (3).

3. The breath-holding nose clip device according to claim 1, characterized in that: It also includes a support rib (9), which is symmetrically arranged on both sides of the second airbag (3) and fixedly connected to the inner side of the face-fitting plate (1), so that a gap channel is formed between the second airbag (3) and the lips to maintain spontaneous breathing in a non-breath-holding state.

4. The breath-holding nose clip device according to claim 1, characterized in that: The fastener includes: Two ear loops (10) are provided. One end of each ear loop (10) is connected to both sides of the faceplate (1). The tail ends of the two ear loops (10) are detachably connected by a connector. A fixing strap (11) is set below the faceplate (1) by an adjustable strap (16) of adjustable length. The two ends of the fixing strap (11) wrap around the human cheek and neck and are detachably connected by a connector.

5. A breath-holding nose clip device according to claim 1, characterized in that: The airbag 2 (3) has an arc-shaped cross section after inflation, and the outer wall of the airbag 2 (3) is detachably connected with a protective film.

6. The breath-holding nose clip device according to claim 1, characterized in that: It also includes a voice prompt module, integrated into the controller (5), for issuing a "please close your breath" voice command through a speaker before inflation.

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