TWM499257U - Nozzle head of atomizer - Google Patents

Description

Nebulizer nozzle

The present invention relates to the medical application field of thoracic spray inhalation therapy, in particular to a nebulizer which is more compact, has a lower manufacturing cost, has a higher structural strength, and can further refine the aerosol particles. Nozzle.

In the medical application of thoracic inhalation therapy, a nebulizer is used to atomize a liquid medicament into a similar gas state (hereinafter referred to as "aerosol") containing a myriad of fine particles, and the aerosol particle size must be less than 5 μm to be absorbed by the lung bronchus. .

In order to make the user easy to carry and convenient to use, the atomizer is usually manufactured in a small size; for example, the atomizer provided in Taiwan Patent Application No. 94112355, the structure of which includes an ultrasonic transducer, mainly The orifice plate of a convex island is combined with a piezoelectric material, and is fixed by a fixing glue and a shell and an outer casing. The ultrasonic transducer is combined with a receiving groove for inserting a liquid; the ultrasonic wave is ultrasonically inserted; The piezoelectric material of the transducer forms a strong ultrasonic wave oscillation and is transmitted to the orifice sheet. The convex island can enhance the concentration of ultrasonic energy, and the liquid atom can be cut off into extremely fine and average atomized molecules to be ejected through the orifice.

Since the piezoelectric material described above contains a heavy metal (for example, lead) and is easily released in combination with water, the piezoelectric material included in the above-mentioned Patent No. 94,112,355 is not coated, so that a large amount of liquid atomizing molecules are ejected forward. When there is a small amount of atomized molecules that are not directed to spray, they are accumulated in the pressure. The electric material forms a liquid and is contaminated by heavy metals. When the subsequent ultrasonic waves oscillate the atomizing molecules, the newly ejected atomizing molecules are mixed with the accumulated liquid contaminated by heavy metals to allow the user to inhale into the body, causing the user to be chronic. Poisoned.

In order to improve the problems of the aforementioned Patent No. 94112355, Taiwan patent I298648 provides "an ultrasonic transducer gain improving structure of an atomizer", the structure of which comprises a casing, a plurality of gaskets, a piezoelectric material combined with a nozzle plate containing a nozzle seat, and a shell combination. Forming an ultrasonic transducer and a receiving groove provided with a convex cannula; the main feature is that a cushion groove is arranged in front of the seat shell body, and a jack is disposed behind; wherein the cushion groove shape system and the pad The sheet is in conformity; a pad groove and a perforation are arranged in the middle of the outer casing; wherein the shape of the pad groove conforms to the gasket; and the gasket is a flexible frame; the outer periphery of the gasket Less than the periphery of the piezoelectric material; the inner circumference of the gasket conforms to the inner circumference of the piezoelectric material; by the foregoing components and structures, the gaskets of the housing shell and the outer casing are respectively inserted into a gasket, and then The piezoelectric material is combined with a nozzle sheet containing the nozzle seat to be placed on the cushion groove of the seat shell, and the shell combined with the gasket is embedded with the seat shell, wherein the gasket of the outer shell and the seat shell is forced to be sprayed The socket is completely blocked from the inner circumference of the piezoelectric material to form an ultrasonic transducer, and combined with one Hold the slot.

The technical content of the main appeal of the above-mentioned I298648 patent case is The sprayed aerosol can be blocked from contacting the piezoelectric material, and the aerosol is prevented from being contaminated by heavy metals by accumulating the liquid on the piezoelectric material. However, the patent No. I298648 has a large number of components and a complicated structure, resulting in high manufacturing cost and low overall structural strength, which is easily damaged when accidentally dropped or impacted by an external force.

On the other hand, in medical applications for thoracic inhalation therapy, aerosol particles are ejected. Mass Median Aerodynamic Diameter (MMAD) must be less than 5μm to be lung Bronchial absorption. Since the particle size of the aerosol output is evenly distributed, effective thoracic inhalation therapy requires that the aerosol output must be more than 50% of the particle molecules less than 5 μm; however, the nebulizer structure disclosed in the aforementioned I298648 patent is medically It is not able to effectively screen out the qualified aerosol particles for output to the patient, that is, the qualified and unqualified drug mist will be output together, and the qualified particle molecules are unknown, which cannot be precisely controlled.

Take a look at the aforementioned prior patents or other conventional related inhalation therapy sprayers for chest inhalation The technique, if it is unavoidable to avoid the contact of the sprayed aerosol and the heavy metal contamination caused by the accumulation of the piezoelectric material, is to avoid the aforementioned pollution and make the structure too complicated, the number of components is too large, resulting in high manufacturing cost; Fog can not effectively screen out the qualified aerosol particles to the patient, and thus can not accurately control the amount of medication prescribed.

The size of the aerosol particles generated by the conventional atomizer is partially affected by the size of the mesh aperture of the microgrid and the shape of the mesh, so that the size of the aerosol particles output by the spray module is between 0.5 μm and 50 μm. Randomly distributed. However, the therapeutic requirements for thoracic spray inhalation for medical use are that aerosol particles of less than 5 μm must account for more than 50% of the total aerosol output ratio; therefore, the aforementioned prior patents have the following treatments for medical thoracic spray inhalation; Disadvantages:

a. In order to obtain aerosol particles smaller than 5 μm, the mesh diameter of the micro-mesh must be less than or equal to 5 μm, but the production cost of such micro-mesh is extremely high, and the proportion of aerosol molecules outputting less than 5 μm does not necessarily match above 50.

b. Compared with aerosol particles less than 5μm, it can be inhaled by patients, others are larger than Aerosol particles above 5 μm cannot be absorbed by the patient in the lung bronchus, but the chemical is wasted. This phenomenon causes the doctor to prescribe the amount of medication must be doubled to offset the large particle aerosol output that is not absorbed, which is a waste of medical resources; or the patient actually inhaled the thoracic cavity medication. Not enough to treat the disease.

c. Aerosol particles larger than 5μm that cannot be absorbed by patients, some of which are dispersed in the air, and some are discarded after being turned into syrup, causing secondary environmental pollution of the drug contaminated air and water source.

One of the purposes of the present invention is to provide an atomizer nozzle that is more compact, has a lower manufacturing cost, and has a higher structural strength than conventional products of the same type.

A further object of the present invention is to provide an atomizer that can completely separate the ejected aerosol from the piezoelectric material disposed on the microgrid to prevent the aerosol from being deposited on the piezoelectric material to be contaminated by heavy metals.

Another object of the present invention is to provide a simple filter structure that allows the sprayed aerosol molecules to be further screened for finer fine atomized gas particles (about 5 μm or less), making the patient easier. Absorb the medicine, achieve effective output of the prescription of the doctor's medicine, and reduce the waste of the medicine.

The atomizer nozzle provided by the present invention is characterized in that a gasket, an atomization module, a fixing component and an inner cover are installed between an outer cover and a medicine container, so that the piezoelectric module of the atomization module The material and the micro mesh are completely separated from the spacer by the fixing member, so as to prevent the atomized liquid molecules ejected from the micro mesh from being contaminated by the heavy metal of the piezoelectric material; the present invention simultaneously reduces the number of components and simplifies the structure, thereby making the manufacturing cost. Lower, cleaning and disinfection is easier, and the structural strength is improved, and the resistance to external force is higher. On the other hand, by the streamlined structure, the sprayed aerosol can be further refined to effectively screen out qualified aerosols. The granules are output to the patient, which in turn precisely controls the amount of medication prescribed.

The atomizer nozzle of the present invention includes the following technical means: a gasket having a first central hole, the first central hole of the first end of the gasket forming an axially protruding first flange, the gasket being combined with the drug container Having the first central hole axially corresponding to the through hole; an inner cover having a third central hole; a fixing member having a second central hole, the second end of the fixing member being respectively provided in a ring shape and a center a first pressing portion and a second pressing portion are disposed, the fixing protrusion is combined with the inner cover, such that the second central hole axially corresponds to the third central hole; and an atomizing module has a micro a mesh and a piezoelectric material disposed at a first end of the microgrid, wherein a center of the first end of the micromesh forms a boss, the boss is provided with a plurality of micro meshes, and an outer diameter of the boss Forming an annular recess between the inner diameters of the piezoelectric material, the atomization module is combined between the inner cover and the spacer, such that the annular recess and the second end corresponding to the annular recess are respectively The first pressing portion abuts against the first flange, and the piezoelectric material is resisted by the second pressing portion, so that the piezoelectric material and the convex portion Separated, and the boss is aligned with the first central hole, the second central hole and the third central hole; an outer cover has a discharge port, and the outer cover is combined with the drug container, and the The inner cover is fixed between the outer cover and the spacer, and the discharge port axially corresponds to the third central hole.

Based on the easy combination of the container and the outer cover, the creation of the through hole in the container The outer surface of the periphery is provided with a plurality of fixing claws, each fixing claw is provided with a fastening hole, and the outer surface of the outer cover is provided with a plurality of fastening portions, and the fastening portion is directly pressed into the medicine container to make the fastening portion The fixing hole is fitted and fixed to each other to complete the combination of the outer cover and the medicine container.

In order to make the sprayed mist more fine to effectively screen out qualified aerosol particles, The present invention further provides a filter radially extending from the inner surface of the ejection opening of the outer cover, the filter having an impact portion facing the third central hole of the inner cover, thereby ejecting from the third central hole of the inner cover The aerosol directly hits the impact portion to break down into finer aerosol molecules, which are then ejected. s.

In a preferred embodiment, the creation is provided in the impact portion of the filter facing the third center The surface of the hole is a convex curved surface, whereby after the gas mist hits the curved surface at a high speed, the arc is spread along the arc of the curved surface to the side and the front side and the outer cover is sprayed.

An embodiment of the present invention is based on the convenience of combining the aforementioned gaskets into a container. An annular convex portion is disposed at the second end of the gasket, and an outer circumferential surface of the through hole of the medicine container is provided with an annular concave groove corresponding to the annular convex portion, and the annular convex portion is combined in the annular concave groove to complete the cushion A combination of a tablet and a container of medicine.

An embodiment of the present invention is based on the convenience of combining the aforementioned fixing elements to the inner cover. The first end of the fixing member is provided with a plurality of fixing protrusions, and the second end of the inner cover is provided with a plurality of fixing recesses, and the fixing protrusions are combined with the fixing recesses to complete the combination of the fixing member and the inner cover.

In a preferred embodiment, the present invention is to fix the first pressure portion and the second pressure of the component. The crotch portion is integrally formed from the fixing member and forms a structure of the same center.

1‧‧‧Pharmaceutical container

10‧‧‧Pharmaceutical space

11‧‧‧through hole

12‧‧‧Fixed claws

121‧‧‧Close hole

13‧‧‧ring groove

14‧‧‧ Activity cover

2‧‧‧shims

21‧‧‧First Center Hole

22‧‧‧First flange

23‧‧‧ annular convex

3‧‧‧Atomization module

31‧‧‧Micro-mesh

311‧‧‧Boss

312‧‧‧Micro mesh

32‧‧‧Piezoelectric materials

321‧‧‧Central hole

33‧‧‧ annular depression

34‧‧‧Protruding

4‧‧‧Fixed components

41‧‧‧Second center hole

42‧‧‧Fixed protrusion

43‧‧‧First Pressure Department

44‧‧‧Second pressure department

5‧‧‧ Inner cover

51‧‧‧ third central hole

52‧‧‧second flange

53‧‧‧Fixed recess

6‧‧‧ Cover

61‧‧‧Cylinder

62‧‧‧Spray outlet

63‧‧‧ inner flange

64‧‧‧ Filter

641‧‧‧ Impact Department

65‧‧‧Deduction Department

L‧‧‧ liquid

The first figure shows a stereoscopic view of the appearance structure of the present atomizer; the second figure shows the stereoscopic exploded view of the main component combination relationship of the present atomizer; the third figure shows the side of the structure of the created atomizer Figure 4 is a perspective cross-sectional view showing the structure of the spacer of the present invention; the fifth drawing is a perspective sectional view showing the structure of the atomizing module of the present invention; and the sixth drawing is a perspective sectional view showing the structure of the fixing component of the present creation. The seventh diagram shows a perspective cross-sectional view of the inner lid structure of the present creation; The eighth figure shows a perspective cross-sectional view of the outer cover structure of the present creation.

The implementation of the present invention will be described in more detail below with reference to the drawings and component symbols, so that those skilled in the art can implement the present specification after studying the present specification. Wherein, the first end described below refers to the same first direction as the elements shown in the respective figures; and the second end refers to the second direction which is the same as the elements shown in the respective drawings. .

The first figure shows the appearance structure of the nebulizer nozzle of the present invention, comprising a container 1 for accommodating a cover 6 having a discharge port 62, which can be used to eject liquid medicine from the discharge port 62 during operation. fog.

The second and third figures further show the main component combination relationship and the combined structure of the atomizer of the present invention; the main component comprises a drug container 1, a gasket 2, an atomization module 3, A fixing member 4, an inner cover 5 and an outer cover 6.

The container 1 is a container having a drug-filling space 10 for containing the drug solution L. A movable cover 14 is movably disposed above the movable cover 14 and the movable cover 14 can be opened to add the drug solution into the drug-filling space 10, and then The movable cover 14 is closed; preferably, the movable cover 14 is connected to one side above the medicated space 10 by a connecting member (for example, a hinge, a flexible member, etc.) so that the movable cover 14 can be opposed to the medicated container 1掀Enclose or close, when the movable cover 14 is opened, the liquid medicine can be added into the medicine space 10, and the movable cover 14 is closed after the addition is completed. The outer side of the medicated container 1 is provided with a plurality of fixing claws 12, and a fixing hole 12 is disposed at an appropriate position of each of the fixing claws 12 near the free end; In the embodiment shown in FIG. 2, the three fixing claws 12 are equiangularly arranged around the periphery of the through hole 11 such that the through hole 11 is located at a center position surrounded by the three fixing claws 12; of course, the fixing claw 12 The number is not limited to three. Can also be set according to actual needs. The outer surface of the side wall of the container 1 which is larger than the inner diameter of the through hole 11 is further formed with an annular groove 13 which is concentric with the through hole 11.

As shown in the fourth figure, the gasket 2 is made of a soft material such as silicone rubber, Made of rubber, etc.; preferably, the gasket 2 is formed into a circular shape, and a first central hole 21 is disposed in the center, and a circumference of the first central hole 21 of the first end of the gasket 2 forms an axis To the protruding first flange 22, the second end of the spacer 2 is provided with an annular convex portion 23, and the first flange 22 and the annular convex portion 23 are both set to be the same center as the first central hole 21; the annular convex portion The outer width of the outer width of the annular groove 13 is slightly larger than the inner width of the annular groove 13, so that the gasket 2 can be combined with the drug holding container 1 by pressing the annular convex portion 23 into the annular groove 13. After the gasket 2 is assembled to the container 1 , the first center hole 21 is axially corresponding to the through hole 11 of the container 1 .

As shown in the fifth figure, the structure of the atomization module 3 includes a micro mesh 31. And a piezoelectric material 32 disposed at the first end of the micro-mesh 31, as shown in the figure, the center of the first end of the micro-mesh 31 forms an axially protruding and convex boss 311, the convex The stage 311 is provided with a plurality of micro-cells 312; the piezoelectric material 32 is formed as a circular sheet-like body having a central hole 321, and the piezoelectric material 32 is bonded to the first end of the micro-mesh 31, thereby making the boss 311 is located in the central hole 321 at the same center, and an annular recess 33 is formed between the outer diameter of the boss 311 and the inner diameter of the central hole 321 of the piezoelectric material 32. Meanwhile, since the outer diameter of the piezoelectric material 32 is smaller than the microgrid The outer diameter of the sheet 31 is such that a projection 34 is formed between the outer diameter of the micro-mesh 31 and the outer diameter of the piezoelectric material 32.

As shown in the sixth figure, the fixing member 4 is made of a soft material (for example, silicone rubber, Made of rubber, etc., having a second central hole 41, a plurality of fixing protrusions 42 are provided around the first end of the fixing member 4 of the second central hole 41; the second ends of the fixing elements 4 are respectively provided a first pressing portion 43 and a second pressing portion 44 which are annular and arranged at the same center; preferably, the first The pressing portion 43 and the second pressing portion 44 are the same central core structure integrally formed from the fixing member 4, wherein the diameter of the first pressing portion 43 is smaller than the diameter of the second pressing portion 44, and the first The crimping portion 43 axially projects the second end of the fixing member 4 with respect to the second crimping portion 44.

As shown in the seventh figure, the inner cover 5 is commonly installed in conjunction with the medicated container 1 The spacer 2, the atomization module 3 and the component of the fixing component 4; the inner cover 5 has a third central hole 51; the second end of the inner cover 5 is provided with a plurality of fixing protrusions for combining the fixing component 4. The fixing recess 53 of 42.

As shown in the eighth figure, the embodiment of the outer cover 6 is a cylinder 61 having a first end a discharge port 62 having a rod-shaped filter 64 extending radially from the inner surface of the discharge port 62, the filter 64 having a pair of free ends centered on the discharge port 62, the free end facing a side of the second end As the impact portion 641, preferably, the impact portion 641 is a projecting curved surface; and an inner flange 63 is formed with respect to the inner diameter of the second end of the discharge port 62.

Using the above-mentioned main components of the creation, the combination method is to first place the gasket 2 The annular projection 23 is pressed into the annular groove 13 of the container 1 to fix the gasket 2 to the container 1; the fixing protrusion 42 of the fixing member 4 is then combined with the fixing recess 53 of the inner cover 5, and the mist is applied. The second end of the micromesh 31 of the chemical module 3 is placed on the first flange 21 of the spacer 2, and the inner cover 5 is covered with the fixing member 4 at the second end of the spacer 2, thereby fixing the fixing member 4. The first pressing portion 43 is pressed against the annular recessed portion 33 of the atomizing module 3 to separate the piezoelectric material 32 from the boss 311, and the second pressing portion 44 is pressed against the piezoelectric material 32. The surface of the end; thereby, the boss 311 and the first central hole 21, the second central hole 41 and the third central hole 51 are arranged in line. Finally, the outer cover 6 is combined with the medicated container 1, and the engaging portion 65 provided on the outer surface of the outer cover 6 is fastened to each of the engaging holes 121 of the medicated container 1, and the inner cover 5 is fixed to the outer cover. Between 6 and spacer 2, and The discharge port 62 is axially corresponding to the third center hole 51 of the inner cover 5, and at the same time, the gasket 2 and the fixing member 4 are both compressed by a soft material, thereby producing a sealing effect and avoiding the sprayed aerosol. The permeable contact is made to the piezoelectric material 32.

As shown in the third figure, when the creation is used, the piezoelectric material is passed through the current. The material 32 is actuated to cause the micro-mesh 31 to vibrate at a high speed. Since the liquid L is in contact with the first central hole 21 through the through-hole 11 in the medicated space 10, the high-speed vibration causes the liquid L to be The micro mesh 312 is oscillated and ejected through the second central hole 41 and the third central hole 51, and the ejected aerosol collides with the impact portion 641 of the filter 64, and the aerosol after the impact is along the arc of the arc. And the front surface diffuses and ejects the outer cover 6 to further reduce the aerosol particles to less than 5 μm to facilitate medical treatment for chest inhalation.

The above description is only for the purpose of explaining the preferred embodiment of the present invention, and is not intended to impose any limitation on the present creation, so that any modifications or changes to the creation made in the same creative spirit are made. , should still be included in the scope of protection of this creative intent.

1‧‧‧Pharmaceutical container

10‧‧‧Pharmaceutical space

12‧‧‧Fixed claws

121‧‧‧Close hole

13‧‧‧ring groove

312‧‧‧Micro mesh

4‧‧‧Fixed components

5‧‧‧ Inner cover

6‧‧‧ Cover

61‧‧‧Cylinder

62‧‧‧Spray outlet

63‧‧‧ inner flange

64‧‧‧ Filter

641‧‧‧ Impact Department

65‧‧‧Deduction Department

L‧‧‧ liquid

Claims (7)

An atomizer nozzle includes: a medicine container having a through hole; a gasket having a first center hole, and the first center hole of the first end of the gasket forms an axially protruding portion a flange, the gasket is combined in the medicated container such that the first central hole axially corresponds to the through hole; an inner cover having a third central hole; and a fixing member having a second central hole, The second end of the fixing component is provided with a first pressing portion and a second pressing portion which are respectively arranged in a ring shape and are centered, and the fixing protrusion is combined with the inner cover to make the second central hole axially corresponding a third center hole; an atomization module having a micro-mesh and a piezoelectric material disposed at the first end of the micro-mesh, the center of the first end of the micro-mesh forming a boss, the boss Forming a plurality of micro meshes, an outer diameter of the boss and an inner diameter of the piezoelectric material forming an annular recess, the atomization module being combined between the inner cover and the spacer to make the annular recess And the second end corresponding to the annular recess is respectively abutted by the first pressing portion and the first flange, and the piezoelectric material The second pressing portion is abutted to separate the piezoelectric material from the boss, and the boss is aligned with the first central hole, the second central hole and the third central hole; an outer cover, The utility model has a discharge port, and the outer cover is combined with the medicine container, and the inner cover is fixed between the outer cover and the gasket, and the discharge port axially corresponds to the third central hole. The atomizer nozzle according to claim 1, wherein an outer surface of the medicine container surrounding the through hole is provided with a plurality of fixing claws, and each fixing claw is provided with a fastening hole, and an outer surface of the outer cover A plurality of fastening portions are provided, and the fastening portions are fitted and fixed to the fastening holes. The atomizer nozzle according to claim 2, wherein the inner surface of the discharge port of the outer cover is radially extended to provide a filter having an impact portion on the third central hole. The atomizer nozzle of claim 3, wherein the surface of the impact portion of the filter facing the third central hole is a convex curved surface. The atomizer nozzle according to claim 1, wherein the second end of the gasket is provided with an annular convex portion, and an outer surface of the medicine container surrounding the through hole is provided with an annular concave corresponding to the annular convex portion. a groove, the annular protrusion being combined in the annular groove. The atomizer nozzle according to claim 1, wherein the first end of the fixing member is provided with a plurality of fixing protrusions, and the second end of the inner cover is provided with a plurality of fixing recesses, and the fixing protrusions are combined with a fixing recess of the inner cover. The atomizer nozzle according to claim 1, wherein the first pressure portion and the second pressure portion of the fixing member are the same central core structure integrally formed from the fixing member.