JPS6343674A - Inhalation mask of nebulizer - Google Patents

Abstract

(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION (A) Industrial Application Field The present invention provides an inhalation mask that is attached to, for example, an ultrasonic atomizer, and is equipped with an insertion cylinder portion that corresponds to the trajectory of a chemical spray flow. This invention relates to an atomizer inhalation mask that improves the efficiency of inhaling chemical liquids.

(B) Prior Art A conventional inhalation mask is made of a hard synthetic resin material such as polycarbonate and is formed into a cylindrical body having a semi-elliptical planar shape and an opening at the bottom. An engagement receptacle is provided with a groove on the outer periphery of the lower opening of the cylinder to serve as an attachment part to the atomizer, and an insertion cylinder part to be inserted into the nasal cavity or oral cavity protrudes from the upper surface of the cylinder to serve as an inhalation piece part. .

This inhaler mask has an upper sloped surface (atomization surface) of the atomizer body.
It is fitted into the holding piece of the atomizing surface with the rear end surface of the inhaler mask in contact with the front end surface of the liquid supply bottle attached to the atomizing section of the atomizing surface ( The vibration plate (diaphragm) is set to correspond to the insertion tube portion of the inhalation mask (not shown).

In use, when the user inserts the insertion tube into the oral cavity or nasal cavity and activates the atomizer, the medicinal solution dripped from the liquid supply bottle onto the diaphragm is atomized by the ultrasonic vibration of the diaphragm. The atomized liquid is inhaled into the throat from the insertion tube.

(C) Problems to be Solved by the Invention The above-mentioned inhalation mask usually includes a mouse mask equipped with one insertion tube for inhaling the medicinal solution into the oral cavity, and two tubes for inhaling the drug into the nasal cavity. There is also a nose mask that includes an insertion tube.

All of the conventional insertion cylinders are provided in a protruding manner so as to correspond to the diaphragm when the inhalation mask is attached to the atomizing surface. Therefore, the end surface of the through-hole of the insertion tube is appropriately opposed to the diaphragm, and the atomized particle stream sprayed from the diaphragm is thought to be emitted in a straight line toward the insertion tube. However, in reality, about half of the atomized particle flow collides with the inner wall of the inhalation mask or the inner wall of the insertion cylinder part during ejection, and condenses and accumulates on the inhalation mask, resulting in extremely low inhalation efficiency.

Therefore, the applicant of the present application has determined the trajectory of the atomized particle flow sprayed from the atomization surface (diaphragm), that is, the cross-sectional shape of the atomized particle flow depending on the direction of spray emitted outward from the diaphragm and the spray distance from the diaphragm. As a result of research, we learned that the atomized particle flow is not emitted at right angles to the diaphragm. It was also found that because the conventional insertion cylinder protrudes at right angles to the diaphragm, it partially obstructs the flow of the atomized particle flow, resulting in a reduction in suction efficiency.

This invention provides an atomizer that prevents condensation of the atomized particle flow and efficiently introduces the medicinal solution into the throat by adapting the insertion tube appropriately to the trajectory of the atomized particle flow based on the above research results. The purpose is to provide an inhalation mask.

(d) Means and operation for solving the problem In order to achieve this object, the inhalation mask of the present invention has the following configuration.

The inhalation mask of the atomizer is an inhalation mask that is detachably attached to the atomization surface of the atomization device and blows out the atomized drug solution outward from the atomization surface, and the atomization of the inhalation mask The insertion tube portion for discharging the liquid is configured to protrude in a manner that corresponds appropriately to the locus of the chemical liquid spray flow that is atomized from the atomization surface.

In an inhalation mask with such a configuration, the insertion tube part controls the trajectory of the atomized particle flow sprayed from the atomization surface, that is, the direction of the atomized particle flow and the ejection distance from the atomization surface (diaphragm). It is made to protrude according to the cross-sectional shape. As a result, the atomized medicinal solution released from the diaphragm is released in a straight line toward the inner hole of the insertion tube, and is inhaled into the throat along the inner wall of the insertion tube. Therefore, the medicinal liquid discharged from the diaphragm does not collide with the inner wall of the inhalation mask or the inner wall of the insertion tube, and can be efficiently inhaled into the throat by preventing dew condensation and the like from occurring.

(e) Embodiment FIG. 1 is a perspective view showing a state in which an inhalation mask according to the present invention is attached to an ultrasonic atomizer.

The ultrasonic atomizer consists of a cylindrical case body 3 and a liquid supply bottle 4 detachably attached to the upper end surface of this case body 3. It is attached together with the liquid supply bottle 4.

As is well known, the case body 3 houses a power jack section, a battery, an oscillation circuit board on which electronic circuit sections such as an oscillation circuit are mounted, a microswitch, a drive board for an ultrasonic transducer, etc. . Further, a power switch connected to the microswitch is provided outside the case body 3 (not shown).

The liquid supply bottle 4 and the inhalation mask 1 are removably attached to the upper surface of a sloped surface 31 formed at the upper end of the case body 3, and the front end surface of the liquid supply bottle 4 and the rear end surface of the inhalation mask 1 are connected to each other. are fitted in such a way that they are in contact with each other.

A cylindrical portion 32 is provided on the inclined wall surface 31 of the case body 3 on which the inhalation mask 1 is located, protruding outward.

An ultrasonic transducer 33 is provided at one end, and a diaphragm 3 is provided at the other end.
A horn 35 having a
2, and the diaphragm 34 is inserted into the cylindrical hole 36 of the cylindrical portion 32.
It is arranged corresponding to the center part of the inhalation mask 1 in a state where it is exposed from the inside.

Further, a liquid supply nozzle 41 is provided protruding from one end (inhalation mask side) of the liquid supply bottle 4, and the tip of this liquid supply nozzle 41 is connected to the vibration plate 34.

FIG. 2 is a perspective view of the nose inhalation mask 1 shown in FIG. 1, viewed from the back side.

The inhalation mask 1 is made of a hard or soft synthetic resin material such as polycarbonate or silicone resin, and has an upper and lower closed structure with a planar shape of approximately a semi-ellipse with one end curved and the other end straight. It is formed into a cylinder. A nozzle insertion hole 11 through which a nozzle 41 of the liquid supply bottle 4 passes is opened in one linear end wall. Further, a window hole 12 corresponding to the diaphragm 34 of the case body 3 is formed on the bottom surface, and the tip of the nozzle 41 protruding from the nozzle insertion hole 11 comes into contact with the top surface of the diaphragm 34 at the position of the window hole 12. ing. Also,
There is a condensed chemical liquid reservoir 13 on the bottom surface (outer periphery of the window hole 12).
has been established.

The lower peripheral edge of the inhalation mask 1 is formed with an engagement receptacle 14 that fits properly into the retaining piece of the case body 3, and the upper central part has two insertion holes that are inserted into the user's nasal cavity. A cylindrical portion 2.2 is integrally provided in a protruding manner. This insertion tube portion 2.2 is arranged so as to appropriately face the diaphragm 34 when it is attached to the atomizer (case main body) 3.

Further, on the inner wall of the upper surface of the inhalation mask 1, two condensation channel pieces 15 and 15 each having a triangular cross section are placed with a slight gap between them, corresponding to the upper part of the insertion tube 2 (on the side of the liquid supply bottle 4). The dew condensation flow path piece 15 and the groove 16 between the dew condensation flow path pieces flow into the dew condensation reservoir portion 13 when a part of the atomized particle flow condenses. It is set.

A feature of the present invention is that the insertion tube portion 2 is made to protrude in accordance with the locus of the atomized chemical solution (atomized particle flow) released from the diaphragm 34.

FIG. 3 is an explanatory diagram of the discharge direction of the chemical liquid (atomized particle flow) sprayed from the diaphragm 34 when viewed from a plane. In this Fig. 3, the ultrasonic vibration surface (electromagnetic horn type rod vibration surface) 34
An example of an atomizer is shown in which the atomized liquid is sprayed from both sides in the plane of the atomizer, and in atomization using this method, two atomized particle streams A and B are released from the diaphragm 34. The two atomized particle flows A and B each have different trajectories, and the diaphragm (spray surface)
It can be seen that the width increases for a while depending on the emission distance from 34. Further, as shown in FIG. 1, when this atomized particle flow A-B is viewed from the side, it can be seen that it takes a curved trajectory that descends downward for a while according to the discharge distance. Furthermore, as shown in FIG. 4, the cross-sectional shape of the atomized particle flow A-B depending on the distance from the spray surface (diaphragm) 34 (the hatched part in the figure is the central part of the atomized particle flow, that is, the particle accumulation density part) It can be seen that the distance between the rays (shown in the figure) gradually increases depending on the emission distance from the diaphragm 34, and each has an elliptical shape that is elongated downward.

Therefore, in the embodiment, the shape of the insertion cylinder part 2.2 is such that the diameter temporarily increases toward the trajectory of this atomized particle flow A-B, that is, toward the tip, and the overall shape curves downward toward the tip. It is formed into an external shape that immediately corresponds to the trajectory shape.

For example, in the nose mask shown in FIG. 1, the length of the insertion tube 2 (the distance from the diaphragm 34 to the tip) is
5mm+, the inner hole tip diameter of the insertion tube part 2 has a major axis of 1.
5 mm, and the minor axis is set to be 9 mm, temporarily expanding from the proximal end to the distal end, and the interval between the insertion tubes 2.2 is set to 1.5 mm.

In addition, in the mouse insertion tube section 2, assuming that the tube length of one insertion tube section 2 is 50 mm, the inner hole base end diameter of the insertion tube section 2 is as follows.
The major axis is approximately 20 ml, the minor axis is approximately 15 mm, and the tip diameter is set to approximately 35 mm and approximately 25 mm, and is formed into a horizontally oblong oval shape that is temporarily enlarged from the proximal end to the distal end ( (not shown).

In an inhalation mask having such a configuration, the insertion tube portion 2 is configured to control the trajectory of the atomized particle flows A and B sprayed from the diaphragm 34, that is, the atomized particle flow in the ejection direction of the atomized particle flow and the ejection distance from the diaphragm. It is made to protrude in accordance with the cross-sectional shape of A-B. As a result, the atomized medicinal liquid released from the diaphragm 34 is released in a straight line toward the inner hole of the insertion tube 2.2, and is inhaled into the throat along the inner wall of the insertion tube 2.2. Therefore, the drug solution released from the atomization surface is transmitted to the inner wall of the inhalation mask 1,
Alternatively, it does not collide with the inner wall of the insertion tube 2, preventing the occurrence of dew condensation, etc., and achieving high suction efficiency.

(f) Effects of the Invention In the present invention, as described above, the shape of the insertion cylinder is made to protrude so as to suitably correspond to the locus of the atomized particle flow emitted from the diaphragm.

According to this invention, the atomized particle stream atomized from the atomization surface is ejected straight into the inner hole of the insertion tube.

Therefore, disadvantages such as dew condensation caused by collision of the atomized particle stream with the inner wall of the inhaler mask or the inner wall of the insertion cylinder during the ejection are eliminated, and most of the medicinal solution sprayed from the atomizing surface is efficiently inhaled into the throat. However, since the inhalation efficiency has been improved, the amount of drug solution can be reduced, and the inhalation time can be shortened, which is an excellent effect that achieves the purpose of the invention.

[Brief explanation of the drawing]

Fig. 1 is a cross-sectional view showing the state in which the inhalation mask is attached to the ultrasonic inhaler, Fig. 2 is a perspective view of the inhalation mask of the embodiment seen from the back side, and Fig. 3 shows the distance from the atomization surface FIG. 4 is an explanatory diagram showing a state where the atomized particle flow is viewed from a plane, and FIG. 4 is an explanatory diagram showing the cross-sectional shape of the atomized particle flow depending on the distance from the atomization surface. 1: Inhalation mask, 2: Insertion tube part, 3: Case body, 4: Chemical solution bottle, 34: Vibration plate, A-B: Spray particle flow. Patent applicant Tateishi Electric Co., Ltd. (1 idiot) Agent Patent attorney Shigeru Nakamura Shindai 27 1. = 5 people square 7 2: God X Shina! 3 Figure': J4 Figure

Claims (1)

[Claims] (1) In an inhalation mask that is removably attached to the atomization surface of an atomizer and that blows out a chemical solution atomized by the atomization surface, an insertion cylinder part that discharges the atomized liquid of the inhalation mask. An inhalation mask for an atomizer, characterized in that the above-mentioned atomizer inhalation mask has a projecting structure that corresponds appropriately to the locus of the chemical liquid spray flow that is atomized from the atomization surface.