Inhalation drug delivery device for respiration and critical disease medicine department

Abstract

The invention relates to the technical field of respiratory drug delivery, in particular to an inhalation drug delivery device for the respiratory and critical disease medicine department, which comprises a box body and a suction nozzle arranged on the front side of the box body through a drug delivery pipe, and further comprises a drug classification treatment mechanism arranged in the box body, and the top of the drug classification treatment mechanism is connected to a drug adding pipe arranged on the top of the box body; the medicine classifying and processing mechanism is installed at the bottom of the machine body and used for classifying and processing different types of medicine, the conveying box is installed at the bottom of the medicine classifying and processing mechanism, connected with the medicine feeding pipe and used for conveying various kinds of medicine, and the problems that in the prior art, an inhalation medicine feeding device can only conduct inhalation medicine feeding on single vaporous or powdery medicine, and certain limitation exists are solved; the problems that medicine inhaled by a patient is not uniform and medicine attached and accumulated at a suction nozzle cannot be cleaned in time due to the fact that the medicine inhaled by the patient is not uniform and particle or block-shaped medicine contained in powdery medicine cannot be effectively treated in time and meanwhile the function of stirring the medicine is lacked are solved.

Description

Technical Field

[0001] This invention relates to the field of respiratory drug delivery technology, and more specifically to an inhalation drug delivery device for respiratory and critical care medicine. Background Technology

[0002] With the rapid development of artificial intelligence, microfluidics, and sensor technology, intelligent and precise technologies have become important development directions for inhalation drug delivery devices. Developing a novel inhalation drug delivery device suitable for all scenarios in respiratory and critical care medicine, enabling precise drug dosage control, simplified operation, and personalized patient treatment, can not only effectively improve the clinical treatment outcomes of respiratory diseases but also reduce medical costs, meeting the growing clinical needs and possessing significant social value and broad market prospects.

[0003] Chinese patent CN118807043A discloses an inhalation drug delivery device for respiratory and critical care medicine. Its structure includes a support base, an inhalation drug delivery unit, a handle, a connecting hose, a support tube, and a breathing mask. The bottom of the inhalation drug delivery unit is fixedly mounted on the upper surface of the support base. A glass bottle is inserted into the drug filling port. A puncture head is used to break the rubber stopper of the glass bottle containing the drug solution, and a through-hole allows the drug solution inside the glass bottle to be drained into the drug filling box, preventing leakage and contamination from contact with external air. Compressed air is forced into the nebulizer tube to atomize the drug solution inside. Larger particles after atomization are blocked by a septum and returned to the nebulizer tube for further atomization through a return tube, thus improving the fineness of the multi-drug atomization. Finally, the mist is discharged from the exhaust tube and inhaled by the patient.

[0004] However, inhalation drug delivery devices for respiratory and critical care medicine, such as those described above, are primarily designed for the inhalation of single aerosol or powder medications, thus limiting their effectiveness. Furthermore, for powdered medications containing granular or lumpy components, these devices often cannot effectively process them, potentially causing discomfort to patients or even choking due to large particles, posing safety risks. Secondly, these devices lack agitation capabilities for various medications, leading to uneven drug distribution and affecting therapeutic efficacy. Additionally, powdered medications tend to adhere and accumulate at the mouthpiece, reducing inhalation efficiency and wasting medication resources. Therefore, improving the design of current inhalation drug delivery devices to accommodate a wider range of medications and enhancing the uniformity and effectiveness of drug inhalation are urgent issues that need to be addressed. Summary of the Invention

[0005] The purpose of this invention is to provide an inhalation drug delivery device for respiratory and critical care medicine, overcoming the limitations of existing inhalation drug delivery devices that can only deliver single mist or powdered drugs. These devices cannot effectively handle granular or lumpy particles in powdered drugs, potentially causing discomfort to patients during inhalation or even choking due to large particles. Furthermore, the lack of agitation function leads to uneven drug delivery, affecting treatment efficacy. Additionally, the inability to promptly remove accumulated medication from the mouthpiece can also negatively impact inhalation effectiveness and cause drug waste.

[0006] To achieve the above objectives, the technical solution adopted by the present invention to solve its technical problem is as follows: An inhalation drug delivery device for respiratory and critical care medicine was designed. The device includes a drug sorting and processing mechanism within the casing. This mechanism allows for the timely processing of gaseous, liquid, and powdered drugs, which are then delivered via different pathways. This ensures that the uniformly mixed drugs are safely inhaled by the patient through the mouthpiece, achieving their intended therapeutic effect. Simultaneously, it allows for the timely removal of any accumulated drugs at the mouthpiece, preventing interference with inhalation and waste of drug resources. The specific design is as follows: An inhalation drug delivery device for respiratory and critical care medicine includes a housing and a mouthpiece installed on the front side of the housing via a delivery tube, and further includes: The drug sorting and processing mechanism is installed inside the box, and the top of the drug sorting and processing mechanism is connected to the dosing pipe set on the top of the box; The conveyor box is installed at the bottom of the drug sorting and processing mechanism and is connected to the drug delivery pipe.

[0007] Preferably, the drug sorting and processing facility includes: The gas-liquid drug canister is connected to the top left of the delivery box via an atomizer at the bottom, and is used to process gaseous and liquid drugs. The upper end of the gas-liquid drug canister is connected to the middle of the delivery box via a gas delivery pipe. The powdered medicine container is connected to the top right side of the conveyor box via a powder lifting mechanism and is used to process powdered medicines. The upper end of the powdered medicine container is connected to the top right side of the conveyor box via a powder pipe.

[0008] Preferably, an external toothed ring is rotatably connected to the bottom of the gas-liquid drug container, and two spiral edges are arranged opposite each other on the inner side of the external toothed ring. The spiral edges are located inside the gas-liquid drug container and are used to agitate the liquid inside the gas-liquid drug container. A first driving member is provided on the side of the external gear ring, and a first gear is connected to the output end of the first driving member. The first gear meshes with the external gear ring.

[0009] Preferably, the powder-lifting mechanism is located inside the powdered medicine container, and the lower inner side of the powdered medicine container has at least three inclined sliding edges in a circular array, which cooperate with the powder-lifting mechanism. The bottom of the powdered medicine container is equipped with a shrink ring bladder, and a valve assembly is connected to the outside of the shrink ring bladder. The valve assembly is located in the mounting box in the middle of the powder tube, and the inside of the shrink ring bladder cooperates with the powder lifting mechanism.

[0010] Preferably, the powder-lifting mechanism includes: A rotating rod passes through the center of the bottom of the powder medicine container. A second driving component is connected to the lower end of the rotating rod. A medicine receiving groove is opened at the top of the rotating rod. At least three medicine dispensing holes are arranged in a circular array at the bottom of the medicine receiving groove. The propeller blades are provided with at least three, and each propeller blade is located between two adjacent spray holes. The lower side of the propeller blades abuts against the bottom of the powder medicine container, and the upper side of the propeller blades is provided with a powder lifting plate that cooperates with the inclined sliding edge. The telescopic rods are arranged in a ring at the upper end of the rotating rod and located below the propeller blades. The free end of the telescopic rods abuts against the inside of the contraction ring bladder.

[0011] Preferably, the valve assembly includes: A push-pull rod extends through the mounting box. One end of the push-pull rod is connected to the outside of the shrink ring bladder, and the other end is equipped with a double-sided rack located inside the mounting box. There are two valve plates, which are respectively located on the front and rear sides of the push-pull rod. A second gear is provided at one end of the valve plate. The second gear meshes with the front and rear sides of the double-sided rack and is used to drive the two valve plates to open and close.

[0012] Preferably, the delivery box is divided into a front docking chamber and a rear atomized drug chamber, a gaseous drug chamber and a powdered drug chamber by a partition, and the atomized drug chamber is connected to the nebulizer. The gaseous drug chamber is connected to the gas delivery tube, the powdered drug chamber is connected to the powder tube, the aerosol drug chamber and the gaseous drug chamber are connected to the delivery tube via the first connecting tube, and the powdered drug chamber is connected to the delivery tube via the second connecting tube.

[0013] Preferably, the delivery tube is also equipped with a pump body. The delivery tube is composed of an inner tube and an outer tube. One end of the inner tube is connected to the gaseous drug chamber, the first connecting tube is connected to the inner tube, one end of the outer tube is connected to the docking chamber, and the second connecting tube is connected to the outer tube.

[0014] Preferably, the other end of the outer tube is connected to the connecting part at the tail of the nozzle via a grinding and cleaning mechanism. The grinding and cleaning mechanism is located outside the inner tube, and a collection bag is installed on the lower side of the connecting part to collect impurities in the drug. A filter screen is installed inside the connecting part, and the outer tube and the inner tube are connected to the filter screen. There are at least three mutually abutting one-way valves in a ring array on the outside of the filter screen.

[0015] Preferably, the grinding and cleaning mechanism includes: A rotating ring is rotatably connected between the connecting part and the outer tube. An external gear is provided on the outside of the rotating ring, and the external gear is connected to a third driving component. The grinding rod is mounted on the guide vanes of the annular array inside the rotating ring. A scraper is provided on one side of the grinding rod to scrape off the drug adhering to the inner wall of the connecting part. The third gear is connected to the grinding rod and meshes with the internal gear located on the inner side of the rotating ring. The internal gear is located outside the guide vane.

[0016] The beneficial effects of this invention are: This invention incorporates a drug sorting and processing mechanism within the casing to classify and process different drugs, such as gaseous, liquid, and powdery drugs. This ensures uniform mixing before delivery, allowing the inhaled drugs to exert their optimal therapeutic effect promptly. A grinding and cleaning mechanism at the mouthpiece removes powdery drugs adhering to the mouthpiece and grinds any granular or lumpy particles within the powder, guaranteeing effective inhalation, preventing drug waste, and avoiding drug reflux. This ensures the drugs are inhaled normally and safely by the patient.

[0017] This invention addresses the issue of granular or lumpy medications contained in powdered drugs. A powder-raising mechanism within the powder container grinds and mixes the powdered drug, raising it for easy inhalation by the patient through the mouthpiece and delivery tube. Furthermore, a secondary grinding and cleaning mechanism at the mouthpiece further enhances the powder's absorption, making it even easier for the patient to inhale. Additionally, a one-way valve at the mouthpiece synchronizes with the patient's breathing, further improving the inhalation effect.

[0018] The present invention has a spiral edge at the bottom of the gas-liquid drug canister that can agitate the gas and liquid for thorough mixing. The rotation of the outer toothed ring can cause the gas or liquid in the gas-liquid drug canister to be continuously driven to flow by the spiral edge, thereby achieving the fluidity and mixing of the drug inside. The liquid drug will also be converted into a mist by the nebulizer at the bottom of the gas-liquid drug canister, so that the patient can inhale the drug when breathing.

[0019] The drug delivery tube of this invention adopts a double-layer structure of inner and outer tubes, which can deliver gaseous and liquid drugs and powdered drugs separately to avoid interference between them, which would be detrimental to the delivery of various drugs. This ensures that various drugs are smoothly delivered to the mouthpiece for the patient to inhale, thereby improving the delivery effect of various drugs. Attached Figure Description

[0020] Figure 1 This is a schematic diagram illustrating the usage of an inhalation drug delivery device for respiratory and critical care medicine according to the present invention. Figure 2 This is a schematic diagram of the internal structure of an inhalation drug delivery device for respiratory and critical care medicine according to the present invention; Figure 3 This is a schematic diagram of the installation of the drug delivery tube in an inhalation drug delivery device for respiratory and critical care medicine according to the present invention; Figure 4 This is a schematic diagram of the overall structure of the drug sorting and processing mechanism in an inhalation drug delivery device for respiratory and critical care medicine according to the present invention; Figure 5 This is a front view of the powdered drug container in an inhalation drug delivery device for respiratory and critical care medicine according to the present invention; Figure 6 for Figure 5 Schematic diagram of the cross section at point AA; Figure 7 for Figure 6 A magnified view of a portion of point B in the middle; Figure 8 This is a schematic diagram of the internal structure of the powdered drug container in an inhalation drug delivery device for respiratory and critical care medicine according to the present invention. Figure 9 This is a schematic diagram of the powder-lifting mechanism in an inhalation drug delivery device for respiratory and critical care medicine according to the present invention; Figure 10 This is a schematic diagram of the gas-liquid drug canister in an inhalation drug delivery device for respiratory and critical care medicine according to the present invention; Figure 11 This is a schematic diagram of the internal structure of the gas-liquid drug canister in an inhalation drug delivery device for respiratory and critical care medicine according to the present invention; Figure 12 This is a schematic diagram of the external toothed ring in an inhalation drug delivery device for respiratory and critical care medicine according to the present invention; Figure 13 This is a side view of the drug delivery tube in an inhalation drug delivery device for respiratory and critical care medicine according to the present invention; Figure 14 for Figure 13 Schematic diagram of the cross section at point C; Figure 15 This is a schematic diagram of the installation of the mouthpiece in an inhalation drug delivery device for respiratory and critical care medicine according to the present invention; Figure 16 This is a schematic diagram of the internal structure of the connecting part in an inhalation drug delivery device for respiratory and critical care medicine according to the present invention; Figure 17 for Figure 16 A magnified view of a portion of point D in the middle; Figure 18 This is a front view of the mouthpiece in an inhalation drug delivery device for respiratory and critical care medicine according to the present invention; Figure 19 This is a schematic diagram of the rotating ring in an inhalation drug delivery device for respiratory and critical care medicine according to the present invention; Figure 20 This is a schematic diagram of the structure of a grinding rod for an inhalation drug delivery device for respiratory and critical care medicine according to the present invention; Figure 21 This is a perspective view of the housing of an inhalation drug delivery device for respiratory and critical care medicine according to the present invention; Figure 22 This is a perspective view of a drug sorting and processing mechanism of an inhalation drug delivery device for respiratory and critical care medicine according to the present invention; Figure 23 This is a perspective view of the delivery tube of an inhalation drug delivery device for respiratory and critical care medicine according to the present invention.

[0021] In the diagram: 1-Box body; 11-Dosing tube; 12-Y-type connecting hose; 2-Delivery box; 21-Connecting chamber; 22-Gasmatic drug chamber; 23-Atomized drug chamber; 24-Powdered drug chamber; 25-First connecting tube; 26-Second connecting tube; 3-Gas / liquid drug tank; 31-Gas delivery tube; 32-External toothed ring; 321-Helical edge; 33-Nebulizer; 34-First gear; 35-First drive component; 4-Powdered drug tank; 41-Powder tube; 42-Straight hose; 43-Drug receiving tube; 44-Inclined sliding edge; 45-Contraction ring bladder; 5-Drug delivery tube; 51-Pump body; 52-Outer tube; 53-Inner tube; 6-Nose; 61-Connecting part; 611 - Filter screen; 612-One-way valve; 62-Collection bag; 63-Third drive component; 631-Fourth gear; 64-Rotating ring; 641-External gear; 642-Guide vane; 643-Internal gear; 65-Grinding rod; 651-Scraper; 652-Grinding protrusion; 653-Third gear; 66-Sealing mesh plate; 661-Actuating rod; 7-Powder lifting mechanism; 71-Rotating rod; 711-Drug receiving trough; 712-Drug spraying hole; 72-Propeller blade; 721-Grinding rod; 73-Powder lifting plate; 74-Telescopic rod; 75-Second drive component; 8-Mounting box; 81-Push-pull rod; 82-Valve plate; 83-Second gear; 84-Double-sided rack. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the embodiments and accompanying drawings. The illustrative embodiments and descriptions of the present invention are only used to explain the present invention and are not intended to limit the present invention.

[0023] In the following description, numerous specific details are set forth in order to provide a thorough understanding of the invention. However, it will be apparent to those skilled in the art that these specific details are not necessary to practice the invention. In other embodiments, well-known structures, circuits, materials, or methods have not been specifically described in order to avoid obscuring the invention.

[0024] Throughout this specification, references to "an embodiment," "an example," or "an example" mean that a particular feature, structure, or characteristic described in connection with that embodiment or example is included in at least one embodiment of the invention. Therefore, the phrases "an embodiment," "an example," "an example," or "an example" appearing in various places throughout the specification do not necessarily refer to the same embodiment or example. Furthermore, specific features, structures, or characteristics can be combined in one or more embodiments or examples in any suitable combination and / or sub-combination. Moreover, those skilled in the art will understand that the illustrations provided herein are for illustrative purposes and are not necessarily drawn to scale. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0025] In the description of this invention, the terms "front", "rear", "left", "right", "up", "down", "vertical", "horizontal", "high", "low", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this invention.

[0026] Example 1 like Figure 1-14 and Figure 20-23As shown, this invention provides an inhalation drug delivery device for respiratory and critical care medicine, including a housing 1, which can be made of hard materials such as medical plastic or metal, preferably a lightweight hard material to reduce the burden of handling and to protect the internal components. A handle or similar device can also be provided on the housing 1 for easy movement. A suction nozzle 6, which is installed on the front side of the housing 1 via a drug delivery tube 5, has a flat, tubular structure for inhaling drug delivery to the patient. Other shapes are also acceptable, as long as they are easy for the patient's mouth to align with. The device delivers the drug from the housing 1 through the drug delivery tube 5. The device also includes a drug sorting and processing mechanism installed inside the housing 1. The top of the box 1 is connected to a dosing tube 11, which is used to classify and process different types of drugs. There are three sets of dosing tubes 11 equidistantly arranged, with their upper ends all facing the top of the box 1 to facilitate drug delivery. A sealing cap is installed on each tube to prevent impurities from falling in during inhalation administration. A funnel can also be connected to the dosing tube 11 to facilitate the smooth addition of drugs and prevent spillage. The delivery box 2 is installed at the bottom of the drug classification and processing mechanism. The delivery box 2 is connected to the drug delivery tube 5 and is used to transport various drugs. It acts as a bridge between the drug classification and processing mechanism and the drug delivery tube 5, so that all kinds of drugs are passed into the delivery box 2 after processing, which facilitates classified transportation.

[0027] Specifically, the drug sorting and processing mechanism includes a gas-liquid drug tank 3, which is connected to the top left side of the delivery box 2 via an atomizer 33 at the bottom for processing gaseous and liquid drugs. The upper end of the gas-liquid drug tank 3 is connected to the middle of the delivery box 2 via a gas delivery pipe 31, and its top is connected to two adjacent sets of drug delivery pipes 11 via a Y-shaped docking hose 12. Gaseous or liquid drugs can be added from different drug delivery pipes 11 and then fall into the gas-liquid drug tank 3. After being processed by the gas-liquid drug tank 3, the drugs are delivered through different pipelines to meet the treatment needs.

[0028] The powdered medicine container 4 is connected to the top right side of the conveying box 2 via the powder lifting mechanism 7 and is used to process powdered medicine. The upper end of the powdered medicine container 4 is connected to the top right side of the conveying box 2 via the powder pipe 41. The top of the powdered medicine container 4 is connected to the remaining set of dosing pipes 11 via the straight hose 42 so that the powdered medicine can be added into it through the dosing pipe 11. After being processed by the powder lifting mechanism 7, it is conveyed out through the powder pipe 41.

[0029] In the above embodiment, after the liquid drug is added into the gas-liquid drug tank 3, it can be atomized by the nebulizer 33 at the bottom and sent into the conveying box 2 below for transportation. The gaseous drug is transported to the conveying box 2 through the gas pipe 31. Although the two have the same storage space, their outlets are different to ensure that they can be effectively classified.

[0030] Specifically, an external toothed ring 32 is rotatably connected to the bottom of the gas-liquid drug container 3. Two spiral edges 321 are arranged opposite each other on the inner side of the external toothed ring 32. The spiral edges 321 are located inside the gas-liquid drug container 3 and are used to agitate the gas and liquid inside the gas-liquid drug container 3. A first driving member 35 is arranged on the side of the external toothed ring 32. A first gear 34 is connected to the output end of the first driving member 35. The first gear 34 meshes with the external toothed ring 32.

[0031] In the above embodiment, the reason for providing an external toothed ring 32 at the bottom of the gas-liquid drug container 3 is to use the rotation of the external toothed ring 32 to drive the rotation of the spiral edge 321 inside it, thereby effectively stirring the gaseous or liquid drugs added inside, making them fully mixed, and improving the fluidity of the drugs inside, so as to facilitate the delivery of the drugs. The first driving member 35 can be a motor or a motor, etc., mainly used to drive the first gear 34 to rotate, thereby driving the external toothed ring 32 meshing with it to rotate, so as to realize the stirring effect of the drugs in the gas-liquid drug container 3.

[0032] Specifically, the powder-lifting mechanism 7 is located inside the powdered medicine container 4. The lower inner side of the powdered medicine container 4 has at least three inclined sliding edges 44 arranged in a ring. The inclined sliding edges 44 cooperate with the powder-lifting mechanism 7. There is a certain gap between two adjacent inclined sliding edges 44, and they all show an upward trend from low to high. A contraction ring bladder 45 is provided at the bottom of the powdered medicine container 4. A valve assembly is connected to the outside of the contraction ring bladder 45. The valve assembly is located in the mounting box 8 in the middle of the powder tube 41. The inner side of the contraction ring bladder 45 cooperates with the powder-lifting mechanism 7 so that the contraction ring bladder 45 can be contracted by the powder-lifting mechanism 7, thereby driving the valve assembly to open and close the powder tube 41.

[0033] In the above embodiment, the contraction ring bladder 45 is made of an elastic soft material. It is provided with the bottom of the powder drug container 4 and protrudes from its outer wall so that it can continue to protrude outward under the pressure of the powder lifting mechanism 7 when it is working, thereby opening the valve assembly on the powder tube 41, so that the powder tube 41 is opened from the normally closed state, which facilitates the delivery of powdered drugs.

[0034] Specifically, the powder-dispensing mechanism 7 includes a rotating rod 71 that penetrates the center of the bottom of the powdered drug container 4. The lower end of the rotating rod 71 is connected to a second driving component 75, which is a motor fixedly connected to the top right side of the conveying box 2 to drive the rotating rod 71 to rotate. The top of the rotating rod 71 has a drug receiving groove 711. The upper end of the drug receiving groove 711 is rotatably connected to the bottom of the right-side drug addition pipe 11 through a drug receiving pipe 43. The bottom of the drug receiving groove 711 has at least three dispensing holes 712 arranged in a ring. During the rotation of the rotating rod 71, the powdered drug falling into the drug receiving groove 711 will be dispensed into the powdered drug container 4 through the dispensing holes 712 under the action of centrifugal force. There are at least three propeller blades 72, and each propeller blade 72 is located between two adjacent dispensing holes 712. After the powdered drug is dispensed from the dispensing hole 712, it will immediately fall onto the propeller blades 72 to disperse the accumulated drug powder and make it easier for the patient to inhale.

[0035] The lower side of the propeller blade 72 abuts against the bottom of the powdered drug container 4, and a grinding rod or similar structure is provided at the contact point to grind the particles and lumps contained in the powdered drug into a powder that does not affect the patient's breathing. A powder-lifting plate 73 is provided on the upper side of the propeller blade 72, which cooperates with the inclined sliding edge 44. One end of the powder-lifting plate 73 is rotatably connected to the upper side of the connection between the propeller blade 72 and the rotating rod 71, and the other end can rest on the inclined sliding edge 44 to facilitate rotation by the rotating rod 71. During the process, the powder-lifting plate 73 can slide along the inclined sliding edge 44 until it slides out from the highest point of the inclined sliding edge 44, and then falls from the gap between two adjacent inclined sliding edges 44 to the lowest point of the next inclined sliding edge 44, completing one rise and fall of the powder-lifting plate 73, so that the powder-lifting plate 73 can rise and fall again in the next cycle. This cycle repeats so that the powder-lifting plate 73 swings up and down while rotating, which can lift the powdered medicine in the powder medicine container 4, and then suck it into the conveying box 2 through the powder tube 41.

[0036] The telescopic rod 74 is arranged in a ring at the upper end of the rotating rod 71 and located below the propeller blade 72. The free end of the telescopic rod 74 abuts against the inner side of the contraction ring 45. The telescopic rod 74 adopts a structure in which a thin rod is slidably connected to a thick rod. Under the drive of the rotating rod 71, the centrifugal force generated by the rotation makes the telescopic rod 74 always in an elongation trend. Therefore, it can force the contraction ring 45 to protrude outward as much as possible. With the elasticity of the contraction ring 45, it protrudes outward by a certain distance. Then, the valve assembly can be opened by the outward thrust of the contraction ring 45, so that the powder tube 41 is opened, which facilitates the delivery of powdered drugs.

[0037] Specifically, the valve assembly includes a push-pull rod 81 that passes through the mounting box 8. An auxiliary plate can be added to ensure the stability of the push-pull rod 81's sliding motion. One end of the push-pull rod 81 is connected to the outside of the contraction ring bladder 45, and the other end is provided with a double-sided rack 84 located inside the mounting box 8. Two valve plates 82 are arranged opposite each other and are located on the front and rear sides of the push-pull rod 81, respectively. The valve plates 82 are preferably semi-circular, and the diameter of the two valve plates 82 in the closed state is larger than the inner diameter of the powder tube 41 to ensure the effective opening and closing of the powder tube 41. A second gear 83 is provided at one end of the valve plate 82, and the second gear 83 meshes with the front and rear sides of the double-sided rack 84 to drive the two valve plates 82 to open and close.

[0038] In the above embodiment, when powdered medicine is added to the powdered medicine container 4 and the powder lifting mechanism 7 needs to work, the telescopic rod 74 in the powder lifting mechanism 7 can use centrifugal force to open the contraction ring bladder 45, causing it to protrude outward by a certain distance. This will drive the push-pull rod 81 to move to the left, which in turn will drive the double-sided rack 84 to move to the left. The movement of the double-sided rack 84 will drive the second gears 83 on both sides to rotate synchronously in opposite directions, thereby opening the two closed valve plates 82. The powdered medicine can then enter the delivery box 2 through the powder tube 41. When the powder lifting mechanism 7 is not needed, the contraction ring bladder 45 will retract under its own contraction capacity, pulling the push-pull rod 81 to move to the right, which will then drive the two valve plates 82 to close the powder tube 41, preventing the powdered medicine from entering the delivery box 2 and affecting the inhalation treatment of other drugs.

[0039] Specifically, the delivery box 2 is divided into a front docking chamber 21 and a rear atomized drug chamber 23, a gaseous drug chamber 22, and a powdered drug chamber 24 by a partition. The atomized drug chamber 23 is connected to the nebulizer 33, the gaseous drug chamber 22 is connected to the gas delivery pipe 31, and the powdered drug chamber 24 is connected to the powder delivery pipe 41. Different types of drugs are sent into the delivery box 2 through different paths to facilitate the classification and reception of different types of drugs and avoid interference between them during the transportation process. The atomized drug chamber 23 and the gaseous drug chamber 22 are connected to the drug delivery pipe 5 through the first connecting pipe 25, and the powdered drug chamber 24 is connected to the drug delivery pipe 5 through the second connecting pipe 26.

[0040] Specifically, the delivery tube 5 is also equipped with a pump body 51 to assist patients in inhaling the medication, especially elderly patients, children, or patients with more serious conditions, thereby improving patient medication compliance. The delivery tube 5 is composed of an inner tube 53 and an outer tube 52. One end of the inner tube 53 is connected to the gaseous drug chamber 22, and the first connecting tube 25 is connected to the inner tube 53. One end of the outer tube 52 is connected to the docking chamber 21, and the second connecting tube 26 is connected to the outer tube 52, achieving dry and wet separation. This allows for the simultaneous delivery of different types of medications without interference between them.

[0041] In the above embodiment, the liquid drug is atomized by the nebulizer 33 and sent into the liquid drug chamber 23, the gaseous drug is sent into the gaseous drug chamber 22 through the gas delivery pipe 31, and the powdered drug is sent into the powdered drug chamber through the powder tube 41. Then, the gaseous drug and the atomized liquid drug are connected to the inner tube 53 through the first connecting pipe 25. There is no interference between the two during the transportation process, and they can coexist. The powdered drug is transported separately through the outer tube 52, which can avoid the powdered drug and the atomized drug from combining and affecting the drug transportation work, and effectively prevent the powdered drug from clumping.

[0042] Example 2 as follows Figure 15-20 and Figure 23 As shown, the other end of the outer tube 52 is connected to the connecting part 61 at the tail of the suction nozzle 6 via a grinding and cleaning mechanism. The grinding and cleaning mechanism is located outside the inner tube 53. A collection bag 62 is installed on the lower side of the connecting part 61 to collect impurities in the drug. A collection port is provided at the bottom of the connecting part 61, and a sealing mesh plate 66 is slidably connected at the collection port. The sealing mesh plate 66 is composed of half a screen and half a sealing plate. A lever 661 located on one side of the collection bag 62 is provided on the mesh plate 66. The positional relationship between the screen and sealing plate on the sealing mesh plate 66 and the collection port can be changed by moving the lever 661, thereby realizing the opening and closing of the collection port. At the same time, the collection bag 62 is detachable and can be disassembled and assembled at any time. It is connected to the bottom opening of the collection port in the form of plug-in or snap-fit ​​to facilitate the collection of impurities in the drug and prevent them from being inhaled by the patient and causing adverse effects.

[0043] The filter 611 is installed inside the connecting part 61. The outer tube 52 and the inner tube 53 are connected to the filter 611. The outer side of the filter 611 has at least three one-way valves 612 that abut against each other in a ring array. The one-way valves 612 can deform towards the mouthpiece 6 to open away from each other, or they can deform towards the connecting part 61 to close abut against each other, so that they can be synchronized with the patient's breathing frequency, which can help the drug to have a better absorption effect and prevent drug reflux.

[0044] Specifically, the grinding and cleaning mechanism includes a rotating ring 64, which is rotatably connected between the connecting part 61 and the outer tube 52. An external gear 641 is provided on the outside of the rotating ring 64. The external gear 641 is connected to a third driving member 63, which is also a motor and is installed on the suction nozzle 6. The output end of the third driving member 63 is connected to a fourth gear 631, which meshes with the external gear 641. A grinding rod 65 is installed on the guide vanes 642 arranged in a ring on the inner side of the rotating ring 64. A scraper 651 is provided on one side of the grinding rod 65 for scraping off the medicine attached to the inner wall of the connecting part 61. A third gear 653 is connected to the grinding rod 65 and meshes with the internal gear 643 provided on the inner side of the rotating ring 64. The internal gear 643 is located on the outside of the guide vanes 642.

[0045] In the above embodiment, the guide vanes 642 provided inside the rotating ring 64 can effectively prevent drug backflow, and the guide vanes 642 are respectively connected to the insert rods 643. One end of the grinding rod 65 is inserted into the insert rod 643, so that the third gear 653 connected to the grinding rod 65 can mesh with the internal gear 643. Thus, the grinding rod 65 can be continuously rotated through the meshing relationship between the two. Because the scraper 651 and the grinding protrusion 652 provided on both sides of the grinding rod 65 along its length direction can scrape and clean the powdered drug attached to the inner wall of the connecting part 61, while the grinding protrusion 652 and the inner wall squeeze each other to perform secondary grinding of the particles or lumps contained in the powdered drug, so as to ensure that the powdered drug inhaled by the patient does not contain particles or lumps, and avoid causing discomfort or choking to the patient.

[0046] Specific implementation examples: When using this respiratory and critical care medicine inhalation delivery device, the following steps are included: Drug delivery Depending on the type of drug, different drugs are added from different dosing tubes 11 at the top of the medicine tank 1, so that different types of drugs are respectively added into the gas-liquid drug tank 3 and the powder drug tank 4.

[0047] 2. Nozzle docking Move the box 1 to a suitable position, disinfect the suction nozzle 6, and place the suction nozzle 6 in the patient's mouth or fix it in the patient's mouth position so that the patient can inhale the medication for treatment through breathing.

[0048] 3. Drug treatment When a gaseous or liquid drug is added, the first drive unit 35 can be activated, which drives the outer gear ring 32 to rotate through the first gear 34. The spiral edge 321 inside the outer gear ring 32 can then continuously stir the gas or liquid in the gas or liquid drug tank 3, giving it a certain degree of fluidity. The gaseous drug will enter the gaseous drug chamber 22 along the gas delivery tube 31, and the liquid drug will be atomized by the nebulizer 33 and directly enter the atomized drug chamber 23. Then, under the action of the pump body 51, it will be delivered along the inner tube 53 to the suction nozzle 6 for the patient to absorb.

[0049] When powdered medicine is added, the powder-lifting mechanism 7 can be activated. Under the action of the second driving component 75, the rotating rod 71 is driven to rotate, which will then use centrifugal force to spray the medicine in the receiving tank 711 added by the right-side dosing pipe 11 out of the dispensing hole 712 onto the propeller blade 72. The propeller blade 72 disperses the powdered medicine, and the powdered medicine in the powdered medicine tank 4 is lifted up by the up-and-down swinging action of the powder-lifting plate 73. The grinding rod 721 at the bottom of the propeller blade 72 can also be used to grind the particles or lumps contained in the powdered medicine.

[0050] Simultaneously, the centrifugal force generated by the rotation of the telescopic rod 74 causes it to extend and compress the contracting ring bladder 45. This, in turn, opens the two valve plates 82 via the push-pull rod 81, opening the powder tube 41. The powdered medicine raised in the powder medicine container 4 then enters the powder medicine chamber 24 along the powder tube 41. Under the action of the pump body 51, it is transported to the connecting part 61 through the outer tube 52. The fourth gear 631 of the third drive component 63 then rotates, which in turn drives the rotating ring 64 via the outer gear 641. The meshing of the inner gear 643 and the third gear 653 causes the grinding rod 65 to rotate on the insert rod 643. Simultaneously, the rotating ring 64 drives the grinding rod 65 to rotate within the connecting part 61. The scraper 651 scrapes away the powdered medicine on its inner wall, and the grinding protrusions 652 perform secondary grinding of granular or lumpy medicine, preventing any impact on the patient's breathing. 4. Remove impurities By turning the lever 661, the sealing mesh plate 66 at the collection port can open or close the collection port. The opened collection port can filter impurities mixed in with the medicine into the collection bag 62, preventing impurities from affecting the patient's breathing.

[0051] In addition, the flow guide vanes 642 provided inside the rotating ring 64 can guide the flow of the drug and prevent backflow. The filter 611 provided at the connection between the connecting part 61 and the mouthpiece 6 filters the drug. The one-way valve 612 is used to synchronize with the patient's breathing to help the drug be better inhaled by the patient, so as to ensure the therapeutic effect of the drug.

[0052] The above specific embodiments further illustrate the purpose, technical solution, and beneficial effects of the present invention. It should be understood that the above are merely specific embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. An inhalation drug delivery device for respiratory and critical care medicine, comprising a housing (1) and a mouthpiece (6) mounted on the front side of the housing (1) via a drug delivery tube (5), characterized in that, Also includes: The drug sorting and processing mechanism is installed inside the box (1), and the top of the drug sorting and processing mechanism is connected to the dosing pipe (11) set on the top of the box (1); The delivery box (2) is installed at the bottom of the drug sorting and processing mechanism and is connected to the drug delivery pipe (5).

2. The inhalation drug delivery device for respiratory and critical care medicine as described in claim 1, characterized in that, Drug sorting and processing facilities include: The gas-liquid drug tank (3) is connected to the top left side of the delivery box (2) via an atomizer (33) at the bottom for processing gaseous and liquid drugs. The upper end of the gas-liquid drug tank (3) is connected to the middle of the delivery box (2) via a gas delivery pipe (31). The powdered medicine container (4) is connected to the top right side of the conveyor box (2) via a powder lifting mechanism (7) for processing powdered medicine. The upper end of the powdered medicine container (4) is connected to the top right side of the conveyor box (2) via a powder pipe (41).

3. The inhalation drug delivery device for respiratory and critical care medicine according to claim 2, characterized in that, The bottom of the gas-liquid drug container (3) is rotatably connected to an external toothed ring (32). Two spiral edges (321) are arranged opposite each other on the inner side of the external toothed ring (32). The spiral edges (321) are located inside the gas-liquid drug container (3) and are used to agitate the liquid inside the gas-liquid drug container (3). A first drive member (35) is provided on the side of the external gear ring (32), and a first gear (34) is connected to the output end of the first drive member (35). The first gear (34) meshes with the external gear ring (32).

4. The inhalation drug delivery device for respiratory and critical care medicine according to claim 2, characterized in that, The powder-lifting mechanism (7) is located inside the powdered medicine container (4). The lower inner side of the powdered medicine container (4) has at least three inclined sliding edges (44) arranged in a ring. The inclined sliding edges (44) cooperate with the powder-lifting mechanism (7). The bottom of the powdered medicine container (4) is provided with a shrink ring bladder (45), and a valve assembly is connected to the outside of the shrink ring bladder (45). The valve assembly is located in the mounting box (8) in the middle of the powder tube (41), and the inside of the shrink ring bladder (45) cooperates with the powder lifting mechanism (7).

5. The inhalation drug delivery device for respiratory and critical care medicine according to claim 4, characterized in that, The powder-raising mechanism (7) includes: A rotating rod (71) passes through the center of the bottom of the powder medicine container (4). A second driving component (75) is connected to the lower end of the rotating rod (71). A medicine receiving groove (711) is opened at the top of the rotating rod (71). At least three medicine dispensing holes (712) are arranged in a ring at the bottom of the medicine receiving groove (711). At least three propeller blades (72) are provided, and each propeller blade (72) is provided between two adjacent spray holes (712). The lower side of the propeller blade (72) abuts against the bottom of the powder medicine container (4), and the upper side of the propeller blade (72) is provided with a powder lifting plate (73) that cooperates with the inclined sliding edge (44). The telescopic rod (74) is arranged in a ring at the upper end of the rotating rod (71) and below the propeller blade (72). The free end of the telescopic rod (74) abuts against the inside of the contraction ring sac (45).

6. The inhalation drug delivery device for respiratory and critical care medicine according to claim 4, characterized in that, The valve assembly includes: A push-pull rod (81) passes through the mounting box (8). One end of the push-pull rod (81) is connected to the outside of the contraction ring bladder (45), and the other end is provided with a double-sided rack (84) located inside the mounting box (8). There are two valve plates (82) arranged opposite each other, located on the front and rear sides of the push-pull rod (81). A second gear (83) is provided at one end of the valve plate (82). The second gear (83) meshes with the front and rear sides of the double-sided rack (84) to drive the two valve plates (82) to open and close.

7. The inhalation drug delivery device for respiratory and critical care medicine according to claim 2, characterized in that, The delivery box (2) is divided into a front docking chamber (21) and a rear atomized drug chamber (23), a gaseous drug chamber (22) and a powdered drug chamber (24) by a partition. The atomized drug chamber (23) is connected to the nebulizer (33). The gaseous drug chamber (22) is connected to the gas delivery tube (31), the powdered drug chamber (24) is connected to the powder tube (41), the atomized drug chamber (23) and the gaseous drug chamber (22) are connected to the delivery tube (5) via the first connecting tube (25), and the powdered drug chamber (24) is connected to the delivery tube (5) via the second connecting tube (26).

8. The inhalation drug delivery device for respiratory and critical care medicine according to claim 7, characterized in that, The delivery tube (5) is also equipped with a pump body (51). The delivery tube (5) is composed of an inner tube (53) and an outer tube (52). One end of the inner tube (53) is connected to the gaseous drug chamber (22). The first connecting tube (25) is connected to the inner tube (53). One end of the outer tube (52) is connected to the docking chamber (21). The second connecting tube (26) is connected to the outer tube (52).

9. An inhalation drug delivery device for respiratory and critical care medicine as described in claim 8, characterized in that, The other end of the outer tube (52) is connected to the connecting part (61) at the tail of the suction nozzle (6) through a grinding and cleaning mechanism. The grinding and cleaning mechanism is located outside the inner tube (53). A collection bag (62) is installed on the lower side of the connecting part (61) to collect impurities in the drug. A filter screen (611) is provided inside the connecting part (61). The outer tube (52) and the inner tube (53) are connected to the filter screen (611). There are at least three one-way valves (612) that abut against each other in a ring array on the outside of the filter screen (611).

10. An inhalation drug delivery device for respiratory and critical care medicine according to claim 9, characterized in that, The grinding and cleaning mechanism includes: A rotating ring (64) is rotatably connected between the connecting part (61) and the outer tube (52). An external gear (641) is provided on the outside of the rotating ring (64), and the external gear (641) is connected to a third driving member (63). A grinding rod (65) is installed on the guide vanes (642) of the annular array inside the rotating ring (64). A scraper (651) is provided on one side of the grinding rod (65) for scraping off the drug adhering to the inner wall of the connecting part (61). The third gear (653) is connected to the grinding rod (65) and meshes with the internal gear (643) provided on the inner side of the rotating ring (64). The internal gear (643) is located outside the guide vane (642).

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