JP2003310774A - Aid for artificial respiration - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an aid for artificial respiration which can prevent the cover from coming off the mouth piece or from tearing up locally when a large tension force is applied from outside. <P>SOLUTION: The aid for artificial respiration has the cover 1 comprising a soft sheet covering the perimeter of mouths of wounded persons and the mouth piece 2 which is mounted piercing a mounting hole 1a made in the cover 1 and lets air pass being sent to the wounded persons from rescuing persons. The mouth piece 2 has an upper half part 3 inserted into the mouth of a rescuing person and a lower half part 3 inserted into the mouth of a wounded person. The upper and lower half parts 3 and 4 of the mouth piece have fitting circumferential surfaces fitted into each other and flange surfaces 5a and 6a made to butt each other. The periphery part of a cover mounting hole 1a is grasped between the flange surfaces 5a and 6a and the root parts of the fitting circumferential surfaces 7 and 8. Step parts 9 and 10 meshed are formed at the root parts of the fitting circumferential surfaces 7 and 8 of the upper half part 3 and the lower half part 4. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a breather-assisted artificial respiration (mouse-to-mouse) generally performed as an artificial respiration method, in which the mouth of a rescuer who gives artificial respiration contacts the mouth of a victim. The present invention relates to an assisting device for artificial respiration that can be performed without doing.

[0002]

2. Description of the Related Art Cardiopulmonary resuscitation is known to be effective as a kind of emergency resuscitation to rescue a victim who suffers from consciousness disorder, respiratory arrest, cardiac arrest or a condition close to this. This cardiopulmonary resuscitation is performed by blocking the nostrils of the victim, placing the rescuer's mouth on the victim's mouth, and breathing directly into the victim's respiratory tract to prevent air leaks by performing mouse-to-mouse artificial respiration. Moreover, the artificial respiration and the heart massage are alternately performed.

By the way, in the mouse-to-mouse artificial respiration method described above, the rescuer's mouth directly touches the victim's mouth, which may cause infection. Therefore, an artificial respiration assisting device has been devised in which a breathing port is provided at the center of a flexible cover that covers the periphery of the mouth. FIG. 9: is sectional drawing which shows one of the prior art examples of such an artificial respiration aid. In this artificial respiration aid, a mouthpiece 32 is attached to an attachment hole 31a provided in a cover 31 that covers the mouth of the victim. The mouthpiece 32 is a member that allows air to flow from the rescuer to the victim, and has a cylindrical upper half 33 inserted into the rescuer's mouth and a cylindrical lower half inserted into the victim's mouth. A portion 34 and a plate-shaped valve body 35,
The peripheral portion of the mounting hole 31a of the cover 31 is sandwiched between the upper half portion 33 and the lower half portion 34. The valve body 35 is provided with a hole 35a provided at one end thereof so that the mouthpiece upper half 33
The projection 36 provided at the lower end of the
Is fitted into the fitting hole 38 of the support piece 37 provided in the lower half part 34 of the mouthpiece, so that the upper half part 33 and the lower half part 34
Is supported between. The peripheral portion of the valve body 35 is seated on the lower end surface of the mouthpiece upper half portion 33, and allows the air A to pass only from above the mouthpiece 32 to below.

[0004]

However, in the artificial respiration assisting apparatus having the above structure, the peripheral edge of the mounting hole 31a of the cover 31 is provided with the flat lower surface of the flange 33a provided on the outer peripheral surface of the upper half 33 of the mouthpiece. And the flat upper end surface of the flange 34a of the lower half portion 34 of the mouthpiece, the force for pinching the cover 31 is not sufficient, and the cover 3
When a large tensile force is applied to 1 from the outside, the cover 31
Is removed from the mouthpiece 32, or the cover mounting hole 31a
There is a problem that local tearing is likely to occur from the vicinity of the dislocated portion in the peripheral portion of the.

Therefore, the present invention provides an assisting device for artificial respiration that can prevent the cover from coming off the mouthpiece and the cover from being locally torn even if a large tensile force is applied to the cover from the outside. The purpose is to do.

[0006]

In order to achieve the above-mentioned object, an artificial respiration aid according to the present invention is provided on the cover and a cover made of a flexible sheet which is put around the mouth of a victim. And a mouthpiece that allows air to pass from the rescuer to the victim, and the mouthpiece is inserted into the mouth of the rescuer, and the mouth of the victim. A lower half part inserted into the upper half part and a lower half part, and the upper half part and the lower half part have a fitting peripheral surface to be fitted to each other and a flange surface to be butted against each other, and a peripheral edge of the mounting hole of the cover. The portion is sandwiched between the flange surface and the root portion of the fitting peripheral surface, and step portions that mesh with each other are formed at the root portions of the fitting peripheral surface of the upper half portion and the lower half portion.

According to the above-mentioned artificial respiration aid, the cover is provided between the upper and lower halves by engaging the peripheral portion of the cover mounting hole with the steps of the upper and lower halves of the mouthpiece. As a result of the cover being bent at the corners of the step and strongly sandwiched between the steps, the cover is firmly held between the upper half and the lower half. Therefore, even if a large tensile force is applied to the cover from the outside, it is possible to prevent the cover from coming off the mouthpiece and the cover from being locally torn.

In a preferred embodiment of the present invention, two step portions are provided along the entire circumference of the root portion.

With this structure, since the peripheral edge of the mounting hole in the cover is bent at two locations over the entire circumference by the two stepped portions, the force for clamping the cover becomes stronger, so that the cover can be more firmly held. It can be securely clamped.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION Preferred embodiments of the present invention will be described in detail with reference to the drawings. 1A and 2
[Fig. 1] is a front view and a use state explanatory view of an artificial respiration assisting device according to a first embodiment of the present invention, and Fig. 1 (B) is a plan view of a cover thereof. As shown in FIG. 1, this artificial respiration aid has a cover 1 made of a transparent sheet made of a flexible resin.
And a mouthpiece 2 attached to the center of the cover 1. The mouthpiece 2 is attached by penetrating the attachment hole 1a of the cover 1 shown in FIG. The cover 1 is put around the mouth 27 of the victim shown in FIG. The mouthpiece 2 allows the air A from the rescuer of FIG. 3 to pass to the victim and blocks the passage of air in the opposite direction, and the upper half 3 is inserted into the mouth of the rescuer.
And a lower half 4 that is inserted into the mouth 27 of the victim.

The upper half 3 and the lower half 4 of the mouthpiece 2
Is made of resin, and both have a rectangular cross section with rounded corners. FIG. 3A is a sectional view taken along line III-III in FIG. That is, FIG. 3 (A)
Shows a front sectional view seen from the wide side of the mouthpiece 2. Further, FIG. 4 shows a side sectional view as seen from the narrow side of the mouthpiece 2. As shown in FIG. 3, the upper half 3 of the mouthpiece can be fitted inside the lower half 4 of the mouthpiece, and a flange 5 is integrally formed on the outer periphery of the vertical middle portion of the body. . The outer peripheral surface from the portion where the flange 5 is formed to the lower end is a fitting peripheral surface 7 that fits into the lower half 4 of the mouthpiece, and the diameter is gradually reduced toward the lower end to reduce the cross-sectional shape. Further, between the flange surface 5a, which is the downward surface of the flange 5, and the root portion of the fitting peripheral surface 7, as shown in an enlarged view in FIG. 3B, along the entire circumference of the root portion. Two step portions 9, 9 extending in the vertical direction are formed.

The lower half portion 4 of the mouthpiece is formed with an outwardly facing flange 6 at its upper end, and the inner peripheral surface from the flange 6 forming portion to the vertically intermediate portion of the body portion is the upper half portion 3 of the mouthpiece. The fitting peripheral surface 8 is fitted to the fitting peripheral surface 7, and the diameter is reduced toward the intermediate portion. Further, the flange surface 6a, which is the upward surface of the flange 6, and the fitting peripheral surface 8
Two step portions 10 extending along the entire circumference of the root portion are also formed between the root portion and the root portion. With the fitting peripheral surface 7 of the upper half 3 fitted to the fitting peripheral surface 8 of the lower half 4, the flange surface 5a of the upper half 3 and the flange surface 6a of the lower half 4 are butted against each other. , Step 9 of the upper half 3 and step 1 of the lower half 4
0 meshes with each other. The peripheral edge of the mounting hole 1a of the cover 1 has flange surfaces 5a, 6a of the upper half 3 and the lower half 4.
And the root portions of the fitting peripheral surfaces 7 and 8 are sandwiched. In this sandwiched state, the peripheral edge portion of the cover mounting hole 1a is bent at two places over the entire circumference and bites into the double step portions 9 and 10 of the upper half portion 3 and the lower half portion 4.

Further, a stepped portion 8a is formed in the inner peripheral surface of the lower half portion 4 of the mouthpiece shown in FIG. On the other hand, at the lower end of the outer peripheral surface of the upper half 3 of the mouthpiece,
The flange portion 7a of the upper half portion 3 is formed in a state where the outward flange portion 7a is formed and the upper half portion 3 is fitted into the lower half portion 4.
By engaging a with the step portion 8a of the lower half portion 4, the upper half portion 3 is securely fitted to the lower half portion 4, and the upper half portion 3 is prevented from coming off from the lower half portion 4. To prevent.

A downwardly projecting protrusion 11 is integrally formed on one side of the inner peripheral surface of the lower end of the upper half 3 of the mouthpiece, and the valve body 12 is made of a soft resin in the form of a rectangular plate.
The projection 11 is fitted into a hole 13 formed at one end of the. Further, a support piece 14 that straddles between opposing wall surfaces is integrally formed at an intermediate portion in the vertical direction on the inner peripheral surface of the body of the lower half portion 4 of the mouthpiece.
By fitting the projection 11 to the valve 5, one end of the valve body 12 is sandwiched between the lower end of the mouthpiece upper half 3 and the support piece 14 of the mouthpiece lower half 4 to be supported. Under this support state, the peripheral portion of the valve body 12 is seated on the lower end surface 3a of the upper half 3 of the mouthpiece. As a result, the lower end opening of the upper half 3 of the mouthpiece is closed by the valve body 12 so that it can be opened and closed.
The valve body 12 operates as a check valve so that only the air A can pass from the upper side to the lower side. 5A shows a plan view of the mouthpiece 2, and FIG. 5B shows a bottom view of the mouthpiece 2.

In using the artificial respiration aid,
As shown in FIG. 2, the lower half 4 of the mouthpiece 2 is held in the mouth 27 of the victim, and the cover 1 covers most of the face including the nose 28 and chin 29 of the victim, and the upper half 3 is covered. The rescuer adds and breathes. As a result, the valve body 12 is opened and the breath of the rescuer can be sent into the airway of the victim, and the mouth of the rescuer does not directly touch the mouth 27 of the victim.

Particularly, in this artificial respiration aid, FIG.
The upper half 3 and the lower half 4 of the mouthpiece 2 shown in (B)
Since the cover 1 is sandwiched between the upper half 3 and the lower half 4 by engaging the peripheral portions of the cover mounting hole 1a with the step portions 9 and 10, 10
It is bent at the corners of and is strongly sandwiched between the step portions 9 and 10. As a result, even if a large tensile force is applied to the cover 1 from the outside, the cover 1 is prevented from coming off from the mouthpiece 2 and from locally breaking off from the removed portion at the peripheral portion of the mounting hole 1a of the cover 1. can do.

That is, in FIG. 1B, the cover 1
When the mouthpiece 2 is fitted into the mouthpiece, the mounting hole 1a is deformed as shown by the broken line, and the entire peripheral portion of the mounting hole 1a is located between the step portions 9 and 10 (FIGS. 3A and 3B) of the mouthpiece 2. Bite into. In this state, for example, when a tensile force F is applied to the cover 1 from the wide side of the mouthpiece 2, not only the wide side 1aa in the mounting hole 1a of the cover 1 but also the narrow side 1ab.
Since it also bites into the step portions 9 and 10 and resists the tensile force F, the peripheral portion of the mounting hole 1a is less likely to come off the mouthpiece 2. Further, in this embodiment, the step portion 9,
Since 10 are provided in each of two stages, the cover 1 is bent at the two portions extending in an annular shape by the step portions 9 and 10, so that the force for holding the cover 1 becomes stronger and the cover 1 is held more reliably. be able to.

6 to 8 show a second embodiment of the present invention. FIG. 6 is a front sectional view of the mouthpiece 2, and FIG. 7 is a side sectional view of the mouthpiece 2. Also, FIG.
8A is a plan view of the mouthpiece 2, and FIG. 8B is a bottom view of the mouthpiece 2.

In the artificial respiration aid of this embodiment, the valve element 12 is supported at the center of the lower end of the upper half 3 of the mouthpiece in the first embodiment shown in FIGS. That is, on the inner peripheral surface of the lower end portion of the mouthpiece upper half portion 3 shown in FIG. 6, between the wide side wall surfaces that extend in the lateral direction orthogonal to the longitudinal direction of the mouthpiece 2 shown in FIG. A support body 20 having an H-shaped plan view is integrally formed of a pair of horizontal bridging pieces 20a, 20a and a supporting piece 20b bridging between the lateral bridging piece portions 20a. Support piece 20b
An engaging pin 21 is integrally formed at the center of the lower surface of the above as a retaining head portion 21a having a lower end enlarged in diameter. By fitting the engaging pin 21 into the square plate-shaped valve body 12 while elastically deforming the hole 23 formed in the central portion of the valve body 12 so as to enlarge, the valve body 12 is attached to the lower end of the upper half 3 of the mouthpiece. Supported. The entire peripheral portion of the valve body 12 is seated on the lower end surface 3a of the upper half 3 of the mouthpiece.

In order to ensure the seating of the valve body 12, the valve body 12 is positioned on the wide side portion of the lower end of the upper half 3 of the mouthpiece as shown in FIGS. 7 and 8B. A pair of positioning pieces 24 are formed so as to project downward. Further, in order to ensure the integration of the upper half 3 and the lower half 4 of the mouthpiece 2, as shown in FIG. The engaging claw 25 is integrally formed, and an engaging concave portion 26 that engages with the engaging claw 25 is formed at a portion of the fitting peripheral surface 7 of the upper half portion 3 facing the engaging claw 25. . As a result, when the upper half 4 is fitted in the lower half 3, the engaging claws 25 of the lower half 4 are engaged with the engaging recesses 26 of the upper half 3, whereby the lower half 3 is engaged. The upper half 3 is securely fitted to the upper half 3 and the lower half 4 to the upper half 3
Can be prevented from falling off. Other configurations are similar to those of the first embodiment.

[0021]

As described above, according to the artificial respiration aid of the present invention, the upper half and the lower half of the mouthpiece are engaged with the peripheral edge of the cover mounting hole to thereby make the upper half. Since the cover is sandwiched between the lower part and the lower part,
As a result of the cover being bent at the corners of the step and strongly sandwiched between the steps, the cover is firmly held between the upper half and the lower half. Therefore, even if a large tensile force is applied to the cover from the outside, it is possible to prevent the cover from coming off the mouthpiece and the cover from being locally torn.

[Brief description of drawings]

FIG. 1A is a front view of an artificial respiration assistance device according to a first embodiment of the present invention, and FIG. 1B is a plan view showing a cover of the artificial respiration assistance device.

FIG. 2 is an explanatory view of a usage state of the artificial respiration aid.

FIG. 3 (A) is a front sectional view showing a mouthpiece of the artificial respiration assisting device, and FIG. 3 (B) is an enlarged sectional view of a main part thereof.

FIG. 4 is a side sectional view showing a mouthpiece of the artificial respiration aid.

FIG. 5 (A) is a plan view of a mouthpiece of the artificial respiration aid, and FIG. 5 (B) is a bottom view of the mouthpiece.

FIG. 6 is a front cross-sectional view showing a mouthpiece of an artificial respiration assisting device according to a second embodiment of the present invention.

FIG. 7 is a side sectional view showing a mouthpiece of the artificial respiration aid.

FIG. 8A is a plan view of a mouthpiece of the artificial respiration assisting device, and FIG. 8B is a bottom view of the mouthpiece.

FIG. 9 is a front sectional view of a conventional example.

[Explanation of symbols]

1 ... cover, 1a ... cover mounting hole, 2 ... mouthpiece, 3 ... mouthpiece upper half, 4 ... mouthpiece lower half, 5a ... upper half flange surface, 6a ... lower half flange surface, 7 ... Fitting peripheral surface of upper half part, 8 ... Fitting peripheral surface of lower half part,
9 ... Upper half step, 10 ... Lower half step

Claims (2)

[Claims] 1. A cover made of a flexible sheet that is placed around the mouth of a victim, and a mouthpiece that penetrates through a mounting hole formed in the cover and that allows air to pass from a rescuer to the victim. The mouthpiece has an upper half part that is inserted into the mouth of the rescuer and a lower half part that is inserted into the mouth of the victim, and the upper half part and the lower half part are fitted to each other. A fitting peripheral surface and a flange surface that abut against each other, and a peripheral portion of the mounting hole of the cover is sandwiched between the flange surface and a root portion of the fitting peripheral surface. An artificial respiration assisting tool having stepped portions that are intermeshing with each other at the roots of the fitting peripheral surfaces of the half and lower halves. 2. The artificial respiration assisting device according to claim 1, wherein two step portions are provided along the entire circumference of the root portion.