JPH05162A - Inhaler - Google Patents

Abstract

PURPOSE:To achieve a reduction in the waste of an inhalation liquid by allowing the lessening of the quantity of mixed steam destined to a waste liquor and to make a liquid drop hard to spray outside from a leader guide whenever it adheres to a steam trapping member. CONSTITUTION:A steam trapping member 6 is formed integral on a leader guide 2a of a body cover 2 which is retained detachably on an inhaler body 1. An end face 6a on the side of a steam nozzle 5 of the steam trapping member 6 is so formed that an end face-wise component of a streamline vector of mixed steam turns downward from the level.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is used for the treatment of inflammation and the like in the respiratory system of the human body, and in particular it is a so-called steam which sprays an inhalation liquid (medicinal liquid) by utilizing vapor jet. Type inhaler.

[0002]

2. Description of the Related Art An inhaler of this type generally has a structure as shown in FIG. In the figure, 1 is an inhaler body, 2 is a body cover that has a guide 2a and is detachably locked to the inhaler body 1, 3 is an inhalation liquid cup containing the inhalation liquid M, and 4 is an inhalation liquid cup. The suction liquid nozzle that sucks up and sprays the suction liquid M of 3 is sprayed, 5 is a steam nozzle arranged near the suction liquid nozzle 4, 6 is a steam collecting member arranged in front of the steam nozzle, and 7 is steam A water supply tank containing water W to be generated, 8 is a heater for heating water,
It forms the bottom of the water tank 7.

More specifically, the suction liquid nozzle 4, the steam nozzle 5 and the steam collecting member 6 are integrally formed of a plastic or the like as the nozzle body N, and the suction liquid nozzle 4 has a suction liquid tube. 4a is connected to the steam nozzle 5, and a steam pipe 5a is connected to the steam nozzle 5. And the vapor collection member 6
Has a circular cross section and has a substantially 3/4 circular ring shape, and the distance between the tip of the steam nozzle 5 and the arcuate end face opposite to this is about 8 to 10 mm. Further, the suction liquid cup 3 is provided with a waste liquid storage section for storing the liquefied mixed vapor that has not been sprayed from the outlet guide 2a.

In this inhaler, when the heater 8 is energized, steam is generated in the water supply tank 7, and when this steam is ejected from the steam nozzle 5, the suction liquid is generated by the Venturi effect.
M is sucked up from the suction liquid nozzle 4 and mixed with vapor,
This mixed vapor is sprayed from the guide 2a. As shown in FIG. 8, this mixed vapor collides with the vapor collection member 6 located in front of the vapor nozzle 5 to change its flow, thereby collecting vapor particles or liquid droplets having a large inertial force and Vapor particles with a small force are sprayed from the guide 2a. In the figure, the mixed vapor has a large diameter (100 μm or more) and a medium diameter (about 50 μm).
, The small particles (10 μm or less) are shown separately, and the large particles are shown immediately, while the medium particles are slightly delayed and fall out of the flow. The vapor that has fallen off here is liquefied and stored in a waste liquid storage portion arranged in parallel with the suction liquid cup 3.

[0005]

In the above-mentioned conventional apparatus, a mixed vapor composed of vapor particles of a certain size is sprayed, so that the user can obtain a good feeling of use. It has such a problem.

First, since the vapor collection member 6 is formed integrally with the nozzle body N, it exists at a position not far from the front of the vapor nozzle 5, and therefore the flow velocity of the mixed vapor colliding with it. Is extremely large. Therefore, even a small-diameter vapor particle has a large inertial force, and in reality
As shown in (4), not all the small-sized vapor particles are sprayed from the guide 2a. In addition, the vapor collection member 6
Is close to the steam nozzle 5, the spread of the mixed steam is much larger than the opening area of the guide 2a.
The amount that is not sprayed increases. Therefore,
Inhalation liquid
The waste of (chemical liquid) increases.

Next, since the vapor collection member 6 has a substantially 3/4 annular shape, and the positional relationship is such that the axis of the vapor nozzle 5 passes through substantially the center of the annular shape as shown in FIG. , Mixed vapor tends to stay in an arc portion corresponding to the axis of the vapor nozzle 5 to form a droplet (water droplet) S. Therefore, the droplets (water droplets) S may be blown off and ejected from the lead-out guide 2a, and the user may cough and hinder a good feeling of use.

The present invention has been made in view of the above circumstances. A first object of the present invention is to provide an inhaler in which the amount of waste liquid in a mixed vapor can be reduced and waste of the inhalation liquid can be reduced. A second object of the present invention is to provide an inhaler in which droplets of the vapor collection member are less likely to be ejected to the outside when the droplets adhere to the vapor collection member.

[0009]

In order to solve the above-mentioned problems, an inhaler according to a first aspect of the present invention has an inhaler main body and a main body cover which is detachably locked to the inhaler main body with a guide. In the inhaler including the steam collecting member and the steam collecting member arranged in front of the steam nozzle, the steam collecting member is formed integrally with the lead-out guide.

An inhaler according to a second aspect comprises an inhaler body,
A vapor nozzle of a vapor collection member, comprising: a main body cover that has a lead-out guide and is detachably locked to a main body of the inhaler; and a vapor collection member that is arranged in front of the vapor nozzle. The end face on the side is formed so that the end face direction component of the streamline vector of the mixed vapor is lower than the horizontal direction.

A third aspect of the inhaler is the inhaler of the first aspect, in which the end face of the vapor collecting member on the vapor nozzle side has the end face direction component of the streamline vector of the mixed vapor downward from horizontal. It is configured as described above.

[0012]

According to the structure of claim 1, since the distance between the steam nozzle and the steam collecting member can be long, when the mixed steam reaches the steam collecting member, it receives air resistance or the like and has a flow velocity,
That is, the inertial force is small, and therefore most of the mixed vapor is sprayed along the flow from the discharge guide.

According to the second aspect of the invention, when a droplet (water droplet) is attached to the vapor collection member, the droplet (water droplet) receives a force downward from the horizontal due to the spray pressure of the mixed vapor. Therefore, the droplet (water droplet) is less likely to be ejected from the guide.

According to the third aspect of the present invention, most of the mixed vapor is sprayed from the guide along the flow, and the droplets (water droplets) attached to the vapor collecting member are difficult to be ejected from the guide. Become.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS.

Reference numeral 1 denotes an inhaler body, which has an inner housing portion 1a and an outer housing portion 1b, and a body cover 2 provided with a lead-out guide 2a serving as a blow-out port is detachably attached to the upper portion thereof. It has been stopped. The inhaler main body 1 includes an insertion hole 1d and a waste liquid hole 1e for a suction liquid nozzle, which will be described later, in a portion 1c serving as an upper wall of the outer housing portion 1b.
Have. The outlet guide 2a of the main body cover 2 is formed in a tubular shape or a slightly tapered tubular shape at a position corresponding to the axial direction of the steam nozzle, which will be described later. The member 6 is integrally formed. The lead-out guide 2a may be formed separately from the main body cover 2 so as to be joined thereto, or the spray angle may be changed.

Reference numeral 3 denotes an inhalation liquid cup, which accommodates the inhalation liquid M and is attached to the outer accommodating portion 1b of the inhaler body 1. The inhalation fluid cup 3 is, specifically, an inhalation fluid container 3a for the inhalation fluid M.
And a waste liquid storage portion 3b located corresponding to the waste liquid hole 1e.

Reference numeral 4 is a suction liquid nozzle for sucking up and spraying the suction liquid M from the suction liquid cup 3, 5 is a vapor nozzle arranged in the vicinity of the suction liquid nozzle 4, and these are nozzle bodies N
Is integrally formed of plastic or the like, the suction liquid tube 4 is connected to the suction liquid nozzle 4, and the steam pipe 5a is connected to the steam nozzle 5. Steam nozzle 5
In consideration of the usage condition, the axis is slightly upward from the horizontal, the guide guide 2a of the main body cover 2 described above is located on the axis, and the tip of the steam nozzle 5 extends from the tip of the steam collecting member 6. The distance to the end face is about 35-40 mm.

A water supply tank 7 stores water W for generating steam and is mounted and fixed to the inner storage portion 1 a of the inhaler body 1. The bottom surface of the water supply tank 7 is formed by a heater 8 for heating water, and a detachable tank lid 7a is locked in the upper opening. On the upper surface of this tank lid 7a,
The above-mentioned steam pipe 5a is airtightly supported. heater
Reference numeral 8 connects the lead wires 8b and 8b to the terminals 8a and 8a, and is connected to a power source via an operation switch (not shown) or the like.

In this inhaler, when the heater 8 is energized, steam is generated in the water supply tank 7, and when this steam is ejected from the steam nozzle 5, the suction liquid is generated by the Venturi effect.
M is sucked up from the suction liquid nozzle 4 and mixed with vapor,
This mixed vapor is sprayed from the guide 2a. As shown in FIG. 4, this mixed vapor collides with the vapor collection member 6 located in front of the vapor nozzle 5 to change its flow, thereby collecting vapor particles or liquid droplets having a large inertial force and Vapor particles with a small force are sprayed from the guide 2a. In the figure, the mixed steam has a large diameter (100 μm or more), a medium diameter (about 50 μm),
It is schematically shown by dividing it into vapor particles with a small diameter (10 μm or less). In this case, since the distance from the steam nozzle 5 to the steam collecting member 6 is longer than that described in the conventional example, air resistance or the like is not generated when the mixed steam reaches the steam collecting member 6. As a result, the flow velocity, that is, the inertial force, has become small, so most of the medium-sized vapor particles, not to mention small-diameter vapor particles, follow the flow, and therefore most of the vapor particles, that is, mixed vapor, are discharged from the guide 2a. Is sprayed.
As a result of actual measurement of this example, it was confirmed that the amount of waste liquid can be reduced to about 30% of the total mixed vapor amount.

FIG. 5 shows a modification of the vapor collection member 6,
The arrangement position of the end surface 6a is significant. That is, since the vapor collecting member 6 exists in the flow of the mixed vapor from the nozzle body N, the streamline vector Z of the mixed vapor is divided into the end face direction component X and the orthogonal direction component Y orthogonal to the end face 6a at its end face 6a. Therefore, the end face 6a is formed so that the end face direction component X thereof is downward from the horizontal.
When such an end surface 6a has a droplet (water droplet) S attached to it, the droplet (water droplet) S gives a downward force to the droplet (water droplet) S due to the spray pressure of the mixed vapor, and thus the droplet
The (water droplet) S moves under the force thereof and is stored in the waste liquid storage portion 3b while traveling along the inner wall of the lead-out guide 2a.

FIG. 6 shows another modified example of the steam collecting member 6. The cross-sectional shape of the steam collecting member 6 is not circular, but the end face 6a on the steam nozzle 5 side is semi-circular, and the width of the end surface 6a makes the direction of the mixed steam flow. The guide guide 2a has a rectangular shape that extends to the vicinity of the end.

[0023]

In the inhaler according to the first aspect of the present invention, since the distance between the steam nozzle and the steam collecting member can be long, when the mixed steam reaches the steam collecting member, it receives air resistance or the like and thus has a flow velocity, that is, Since the inertial force is small, most of the mixed vapor is sprayed from the guide along the flow, so that the amount of waste liquid in the mixed vapor can be reduced, the efficiency can be improved, and the waste of suction liquid can be reduced. It will be one.

In the inhaler according to the second aspect, when a droplet (water droplet) is attached to the vapor collecting member, the droplet (water droplet) is moved by receiving a force downward from the horizontal due to the spray pressure of the mixed vapor. Therefore, it is difficult for the lead-out guide to jet outside.

In the inhaler according to the third aspect of the invention, the amount of waste liquid in the mixed vapor can be reduced, the efficiency can be improved, the waste of the inhaled liquid can be reduced, and the liquid droplets attached to the vapor collecting member can be reduced.
(Water droplets) are hard to jet from the guide.

[Brief description of drawings]

FIG. 1 is a vertical sectional view showing an embodiment of the present invention.

FIG. 2 is a front view thereof.

FIG. 3 is a plan view with a part cut away.

FIG. 4 is a schematic diagram for explaining the flow of the mixed vapor.

FIG. 5 is a main-portion cross-sectional view showing a modified example of the vapor collection member.

FIG. 6 is a sectional view of an essential part showing another modification of the vapor collection member.

FIG. 7 is a vertical sectional view showing a conventional example.

FIG. 8 is a schematic diagram for explaining the flow of the mixed vapor.

FIG. 9 is a main-portion cross-sectional view showing the vicinity of the vapor collection member.

[Explanation of symbols]

1 Inhaler body 2 Body cover 2a Body cover extraction guide 3 inhalation cup 4 Inhalation liquid nozzle 5 steam nozzle 6 Vapor collection member 6a End face of vapor collection member 7 Water tank 8 heater N nozzle body M inhalation liquid (chemical liquid) W water

Claims (3)

[Claims] 1. An inhaler main body, a main body cover having a lead-out guide and detachably locked to the inhaler main body, an inhalation liquid cup containing an inhalation liquid, and sucking up the inhalation liquid in the inhalation liquid cup. A suction liquid nozzle for spraying, a steam nozzle arranged in the vicinity of the suction liquid nozzle, a steam collecting member arranged in front of the steam nozzle, and a water supply tank containing water for generating steam, A heater for heating water is provided, and when the heated steam is ejected from the steam nozzle, the suction liquid is sucked up from the suction liquid nozzle and mixed with the steam. In the inhaler described above, the vapor trapping member is formed integrally with the lead-out guide. 2. An inhaler main body, a main body cover having a lead-out guide and detachably locked to the inhaler main body, an inhalation liquid cup containing an inhalation liquid, and sucking up the inhalation liquid from the inhalation liquid cup. A suction liquid nozzle for spraying, a steam nozzle arranged in the vicinity of the suction liquid nozzle, a steam collecting member arranged in front of the steam nozzle, and a water supply tank containing water for generating steam, A heater for heating water is provided, and when the heated steam is ejected from the steam nozzle, the suction liquid is sucked up from the suction liquid nozzle and mixed with the steam. In the inhaler described above, the end face of the vapor collection member on the side of the steam nozzle is formed such that the end face direction component of the streamline vector of the mixed vapor is lower than horizontal. 3. The inhaler according to claim 1, wherein the end surface of the steam collecting member on the steam nozzle side is formed so that the end surface direction component of the streamline vector of the mixed steam is lower than horizontal. Inhaler to do.