A paediatric respiratory care adjunct

Abstract

The application discloses a kind of paediatrics respiratory tract nursing auxiliary device, belong to medical instrument technical field, including with atomization cup connecting atomization cup connecting pipe, the other end of atomization cup connecting pipe is provided with Venturi nozzle, the other end of Venturi nozzle is provided with face guard;The edge of face guard is provided with sealing ring, sealing ring is filled with gas, sealing ring is connected with external gas source by air valve door;Venturi nozzle includes fixed contraction section that is connected together with atomization cup connecting pipe, the other end of fixed contraction section is integrally formed with adjustable throat section in middle part, the other end of adjustable throat section in middle part is integrally formed with fixed diffusion section;Adjusting mechanism for adjusting flow size is arranged on adjustable throat section in middle part, fixed diffusion section is provided with curved flow guide section at outlet, and curved flow guide section is located inside face guard.This application systematically solves the pain points such as poor sealing, high residual, uncomfortable experience and low compliance in paediatrics nebulization treatment, and realizes precise, comfortable and efficient child-friendly nebulization treatment.

Description

Technical Field

[0001] This invention relates to the field of medical devices, and more particularly to a pediatric respiratory care assist device. Background Technology

[0002] Respiratory diseases are common and frequently occurring in pediatrics, with conditions such as asthma, pneumonia, and acute respiratory infections being prevalent. Nebulization therapy, respiratory support, and sputum clearance assistance are key treatment methods for these diseases, making respiratory care aids indispensable tools in pediatric diagnosis and treatment. For example, pneumonia requires medication administration via nebulization, and asthma treatment also heavily relies on nebulization equipment for routine care. However, existing mainstream nebulizers (such as jet and ultrasonic nebulizers) and their accessories have significant design flaws, resulting in unsatisfactory efficacy and user experience when used in children. These flaws are mainly reflected in: Poor fit leads to reduced efficacy: rigid masks cannot fit the diverse facial contours of children, resulting in a very high rate of drug leakage during treatment and making it difficult to guarantee the effective inhalation dose.

[0003] Drug waste and inaccurate dosage: The internal flow field of traditional nebulizer cups has "dead zones" where drugs remain, resulting in high drug residue rates, waste, and inaccurate drug administration.

[0004] Low compliance among children: The treatment process is accompanied by noise and the feeling of pressure from foreign objects, which can easily cause fear and resistance in children.

[0005] The user experience has several pain points: high-speed airflow direct spray causes discomfort, uneven airflow distribution leads to fluctuations in the concentration of the drug mist, and the child needs to take deep breaths with great cooperation to ensure the inhalation effect.

[0006] Based on this, the present invention proposes a pediatric respiratory care auxiliary device. Summary of the Invention

[0007] The purpose of this invention is to provide a pediatric respiratory care assist device that solves the problems of poor facial sealing, high drug residue, uneven and uncomfortable drug mist flow field, and low treatment compliance of children in traditional devices.

[0008] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: This invention discloses a pediatric respiratory care auxiliary device, comprising a nebulizer cup connecting tube connected to a nebulizer cup, a venturi nozzle at one end of the nebulizer cup connecting tube, and a face mask at the other end of the venturi nozzle; a sealing ring is provided at the edge of the face mask, the sealing ring is filled with gas, and the sealing ring is connected to an external gas source through a gas valve; the venturi nozzle includes a fixed constriction section connected to the nebulizer cup connecting tube, an adjustable throat section integrally formed at the other end of the fixed constriction section, and a fixed diffuser section integrally formed at the other end of the adjustable throat section; an adjustment mechanism for adjusting the flow rate is provided on the adjustable throat section, and a curved guide section is provided at the outlet of the fixed diffuser section, the curved guide section being located inside the face mask.

[0009] Furthermore, the face mask is made of flexible medical-grade silicone.

[0010] Furthermore, the curved guide section is connected to the fixed diffuser section by a plurality of circumferentially distributed mounting brackets.

[0011] Furthermore, the inner surface of the mask is coated with a superhydrophobic nano-coating.

[0012] Furthermore, the adjustment mechanism includes a rotating shaft, one end of which is rotatably disposed on the inner wall of the central adjustable throat section, and the other end of which extends out of the central adjustable throat section and is provided with a wrench; one end of the wrench is disposed on a support plate by a locking bolt, and the support plate is disposed on the outer wall of the central adjustable throat section; the rotating shaft is located inside the central adjustable throat section and is provided with an adjustment plate that matches the central adjustable throat section.

[0013] Furthermore, the wrench has an angle marking at one end near the locking bolt, and a handle is integrally formed at the other end away from the angle marking.

[0014] Furthermore, the curved guide section is composed of a Coanda effect curved guide wall with a trumpet-shaped structure, and the surface of the Coanda effect curved guide wall is provided with a micro eddy current generator array.

[0015] Furthermore, the micro eddy current generator is a micron-sized protrusion or pit.

[0016] Furthermore, the outer side wall of the mask is symmetrically provided with buckles, the buckles are fastened with straps, and the ends of the straps are provided with eyelets that match the buckles.

[0017] Furthermore, the buckle is made of widened, high-elasticity knitted strap.

[0018] Compared with the prior art, the beneficial technical effects of the present invention are as follows: This invention relates to a pediatric respiratory care assist device. When the sealing ring on the mask is inflated, it expands, flexibly and tightly conforming to the faces of children of different sizes and contours, forming a dynamic seal and effectively preventing leakage of medication mist due to uneven facial surfaces or child movement. By adjusting the rotation angle of the regulating plate, the amount of medication passing through can be adjusted, thereby optimizing the Venturi effect and ensuring a stable, efficient, and optimally distributed nebulization effect under various input conditions. The Venturi tube and the Coanda curved guide wall work together to optimize the high-speed medication mist flow into a uniform, low-speed "medication mist cloud," completely eliminating noise and the feeling of direct airflow. The superhydrophobic nano-coating makes it difficult for even extremely small, un-nebulized droplets to adhere; they are re-entrained by the airflow and participate in circulation or are eventually inhaled, reducing drug residue. In summary, this invention systematically solves the pain points of poor sealing, high residue, discomfort, and low compliance in pediatric nebulization therapy, achieving precise, comfortable, and efficient child-friendly nebulization therapy. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings.

[0020] Figure 1 This is a front view of the pediatric respiratory care assist device of the present invention; Figure 2 This is a front view of a Venturi nozzle; Figure 3 This is a schematic diagram of the adjustment mechanism. Figure 4 This is a schematic diagram of the mask structure; Figure 5 This is a schematic diagram of the curved guide section structure; Figure 6 This is a schematic diagram of a partial structure of the concave-convex surface; Explanation of reference numerals in the attached diagram: 1. Face mask; 2. Venturi nozzle; 3. Atomizer cup connecting tube; 4. Lock; 5. Air valve; 6. Strap; 7. Buttonhole; 8. Sealing ring; 9. Adjustment mechanism; 201. Fixed contraction section; 202. Adjustable throat section in the middle; 203. Fixed diffuser section; 204. Curved guide section; 205. Mounting bracket; 901. Rotating shaft; 902. Adjusting plate; 903. Support plate; 904. Wrench; 905. Locking bolt. Detailed Implementation

[0021] like Figure 1-6As shown, a pediatric respiratory care assist device includes a nebulizer cup connecting tube 3 connected to a nebulizer cup. A Venturi nozzle 2 is installed at the other end of the nebulizer cup connecting tube 3, and a face mask 1 is installed at the other end of the Venturi nozzle 2. The face mask 1 is made of flexible medical silicone, and its inner surface is coated with a superhydrophobic nano-coating. A sealing ring 8 (e.g., ...) is installed at the edge of the face mask 1. Figure 4 As shown, the sealing ring 8 is filled with gas and is connected to an external gas source via a gas valve 5. Additionally, it can be inflated and deflated using a miniature manual air pump integrated on the side. During treatment, inflation causes the sealing ring 8 to expand flexibly, closely conforming to the child's facial contours to achieve a dynamic seal and effectively prevent medication leakage. Specifically, on one hand, the adaptability of the flexible silicone achieves a close fit to the child's face, and the inflatable sealing ring 8 enhances the overall sealing effect, preventing medication leakage and ensuring accurate drug administration; on the other hand, the superhydrophobic nano-coating inhibits the adhesion and condensation of medication mist on the inner wall of the mask 1, reducing drug waste and avoiding hygiene hazards caused by condensation and the child's resistance. This synergizes with the system's goals of comfort and precision treatment, improving overall treatment effectiveness and patient compliance.

[0022] like Figure 2 As shown, the Venturi nozzle 2 includes a fixed constriction section 201 connected to the atomizing cup connecting tube 3. The other end of the fixed constriction section 201 is integrally formed with a central adjustable throat section 202, and the other end of the central adjustable throat section 202 is integrally formed with a fixed diffuser section 203. An adjustment mechanism 9 for adjusting the flow rate is installed on the central adjustable throat section 202, thereby changing the throat cross-sectional area and diffusion angle to adapt to different flow rate requirements and optimize the airflow state from the source to reduce noise. A curved guide section 204 is installed at the outlet of the fixed diffuser section 203, located inside the mask 1. The curved guide section 204 is composed of a Coanda effect curved guide wall with a trumpet-shaped structure, and the surface of the Coanda effect curved guide wall is provided with a micro-vortex generator array. The micro-vortex generator consists of micron-level protrusions or pits (such as...). Figure 6 (As shown). After the high-speed mist is ejected from the Venturi nozzle, it flows along the Coanda effect curved guide wall. Utilizing the Coanda effect (fluids tend to flow along curved surfaces), the mist is guided to diffuse towards the sides and top of the mask 1, rather than directly towards the child's face. At the same time, the micro-vortex generator creates controllable micro-vortices in the boundary layer, allowing the mist to mix more quickly and evenly with the air inside the mask, ultimately forming a uniformly distributed "mist cloud" with a velocity of less than 0.5 m / s inside the mask cavity.

[0023] The curved guide section 204 is mounted together with the fixed diffuser section 203 via a plurality of circumferentially distributed mounting brackets 205 (e.g., Figure 5 (As shown).

[0024] like Figure 3 As shown, the adjustment mechanism 9 includes a rotating shaft 901. One end of the rotating shaft 901 is rotatably mounted on the inner wall of the central adjustable throat section 202, and the other end extends out of the central adjustable throat section 202 and is fitted with a wrench 904. One end of the wrench 904 is mounted on a support plate 903 via a locking bolt 905. The support plate 903 is mounted on the outer wall of the central adjustable throat section 202. An adjustment plate 902 matching the central adjustable throat section 202 is installed inside the rotating shaft 901. An angle marking is provided on the end of the wrench 904 near the locking bolt 905, and a handle is integrally formed on the end of the wrench 904 away from the angle marking.

[0025] Specifically, when it is necessary to adjust the flow cross-section of the adjustable larynx 202 to adapt to the respiratory flow requirements of children of different ages, the operator can first loosen the locking bolt 905 to release the fixed constraint on the wrench 904, then hold the hand end of the wrench 904 and refer to the angle markings on its end to drive the rotating shaft 901 to rotate around the hinge point on the inner wall of the adjustable larynx 202. The rotating shaft 901 simultaneously drives the adjusting plate 902 that extends into the adjustable larynx 202, so that the adjusting plate 902 changes its angle with the flow channel of the adjustable larynx 202 as the rotating shaft 901 rotates, thereby achieving precise control of the flow cross-sectional area inside the larynx. After adjusting to the target angle, the operator tightens the locking bolt 905 to re-establish a fixed connection between the wrench 904 and the support plate 903, thereby locking the position of the rotating shaft 901 and the adjusting plate 902 to ensure that the adjustable larynx 202 maintains a stable flow state.

[0026] The mask 1 is symmetrically equipped with buckles 4 on its outer side wall. The buckles 4 are fastened with straps 6. The end of the straps 6 is provided with a buttonhole 7 that matches the buckles 4 for easy fastening.

[0027] Specifically, the buckle 6 is made of a widened, high-elastic knitted strap, which is elastic in all directions, easy to wear, and has even pressure distribution, so as to avoid affecting blood circulation in the head or causing discomfort to infants and young children.

[0028] In another embodiment, the buckle 6 adopts a three-section composite strap, specifically including: the main body section (head contact part), which mainly uses "medical-grade silicone mesh" or "high elasticity and excellent breathability medical-grade foam dressing material" (such as polyurethane foam), which is extremely soft and can distribute pressure, breathe and sweat, and prevent skin maceration or heat rash caused by sweat accumulation; the connecting section (adjustment part) uses "high-strength, low-elasticity medical webbing" (such as nylon or polyester fiber), which is responsible for bearing the main tensile force and realizing length adjustment. The low elasticity ensures that it will not loosen due to elastic relaxation after fixation, thereby ensuring sealing stability; the fixing section (connection part with the mask) uses "flexible nylon hook and loop fastener (Velcro)" or "quick-release plastic buckle", wherein the Velcro should be selected with small hook surface and soft nap to avoid the hook surface accidentally scratching the skin or hair, and the buckle should be rounded corners and free of burrs.

[0029] The working process of this invention is as follows: First, adjust the size of the adjustable larynx section 202 according to the child's age to select a suitable opening for the child to obtain a gentler airflow; then, put on the mask 1 and inflate and seal it; finally, start the main unit on the nebulizer cup, and the medicine is efficiently atomized in the nebulizer cup. The medicine mist then enters the mask 1 and is transformed into a uniform and warm "medicine mist cloud" through the adjustable nozzle of the Venturi nozzle 2 and the curved guide section 204.

[0030] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Various modifications and improvements made by those skilled in the art to the technical solutions of the present invention without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. A pediatric respiratory care assist device, comprising a nebulizer cup connecting tube (3) connected to a nebulizer cup, wherein a venturi nozzle (2) is provided at the other end of the nebulizer cup connecting tube (3), and a face mask (1) is provided at the other end of the venturi nozzle (2); characterized in that: The mask (1) is provided with a sealing ring (8) on its edge. The sealing ring (8) is filled with gas and is connected to an external gas source through a gas valve (5). The venturi nozzle (2) includes a fixed constriction section (201) connected to the atomizing cup connecting pipe (3). The other end of the fixed constriction section (201) is integrally formed with a central adjustable throat section (202). The other end of the central adjustable throat section (202) is integrally formed with a fixed diffuser section (203). The central adjustable throat section (202) is provided with an adjustment mechanism (9) for adjusting the flow rate. The outlet of the fixed diffuser section (203) is provided with a curved guide section (204). The curved guide section (204) is located inside the mask (1).

2. The pediatric respiratory care assist device according to claim 1, characterized in that: The face mask (1) is made of flexible medical silicone.

3. The pediatric respiratory care assist device according to claim 1, characterized in that: The curved guide section (204) is set together with the fixed diffuser section (203) through a number of circumferentially distributed mounting brackets (205).

4. The pediatric respiratory care assist device according to claim 1, characterized in that: The inner surface of the mask (1) is coated with a superhydrophobic nano-coating.

5. The pediatric respiratory care assist device according to claim 1, characterized in that: The adjustment mechanism (9) includes a rotating shaft (901), one end of which is rotatably disposed on the inner wall of the central adjustable throat section (202), and the other end of which extends out of the central adjustable throat section (202) and is provided with a wrench (904); one end of the wrench (904) is disposed on a support plate (903) by a locking bolt (905), and the support plate (903) is disposed on the outer wall of the central adjustable throat section (202); the rotating shaft (901) is located inside the central adjustable throat section (202) and is provided with an adjustment plate (902) that matches the central adjustable throat section (202).

6. The pediatric respiratory care assist device according to claim 5, characterized in that: An angle marking is provided on one end of the wrench (904) near the locking bolt (905), and a handle is integrally formed on the other end of the wrench (904) away from the angle marking.

7. The pediatric respiratory care assist device according to claim 1, characterized in that: The curved guide section (204) is composed of a Coanda effect curved guide wall with a trumpet-shaped structure, and the surface of the Coanda effect curved guide wall is provided with a micro eddy current generator array.

8. The pediatric respiratory care assist device according to claim 7, characterized in that: The micro eddy current generator is a micrometer-level protrusion or pit.

9. The pediatric respiratory care assist device according to claim 1, characterized in that: The mask (1) is symmetrically provided with buckles (4) on the outer side wall, and a buckle (6) is fastened to the buckle (4). The end of the buckle (6) is provided with a buttonhole (7) that matches the buckle (4).

10. The pediatric respiratory care assist device according to claim 9, characterized in that: The buckle (6) is made of widened, high-elasticity knitted strap.

Images