KR910008025B1 - Pediatric asthmatic medication inhaler - Google Patents

Abstract

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Description

Pediatric Drug Inhaler

1 is a longitudinal cross-sectional view illustrating a pediatric intake valve forming an object of the present invention.

2 is a right side view of FIG.

3 is a reference perspective view of FIG.

4 shows a partial cross section of a valve similar to that of FIG. 1 intake valve, showing a variation of the invention.

5 is a partial plan view of the FIG. 4 embodiment.

* Explanation of symbols for main parts of the drawings

14: suction valve 16, 42: cylinder

18 flange 20 elastomer adapter

22: peripheral flange 24: cylindrical flange

26: inward flange 30: spider

32: annular ring 42: radial flange

44: diamond frame 45: slit

46: adapter (supplied) 48: first conical frustum-shaped portion (inner cross-section)

52: open apex (first part inner end) 54: open base (first part thin section)

58: second conical frustum-shaped portion (flange) 60: open base (outer surface)

62: open apex 66: exterior

68, 70: Surface roughness 72: Signaling means (whistle)

74: center bore 80: base

84: foam ring

People with asthma have a significant difficulty breathing due to bronchial swelling and mucus secretion when they have asthma attacks. There are a variety of anti-asthma pills that are effective against these asthma attacks, but they are usually slower. There are also intravenous drug treatments that are expected to have a relatively fast effect, but require administration by skilled medical personnel. For most patients, the fastest and most readily available relief is with inhalants. Adrenaline or other suitable asthma medication is packaged in a small pressurized canister or cartridge fitted with a mouthpiece with an appropriate diluent. The patient's marguese is placed in the mouth and the appropriate amount of drug inhaled through the cartridge is released.

Some patients do not adequately inhale the drug, and may not be effective enough to convert the drug into a mist that is administered in conjunction with the cartridge to administer the drug into a suitable trachea to relieve an asthma attack. In the case of small droplets that have not become a mist, they can be mixed by inadequate inhalation, causing a large amount of the drug to go over the neck and up, which has no effect on asthma attacks.

My US Patent No. 4,470,412 discloses a very effective and inexpensive suction valve with permeable marfesion properties for bronchial dialers, which is used by a person with asthma to inhale and drop droplets. ) Helps to disperse the mist into mists. Such intake valves have had significant commercial success.

The suction valve as described above can be used by a patient who can put the mouthpiece in the mouth and can suck and spit out through the mouthpiece. Infants or young children, on the other hand, cannot contain the maizepiece correctly in the oral cavity, and in particular the oral cavity of the infant is too small for such a maugeice. Also, depending on the condition, it is not possible to determine whether the infant or child is properly sucking and spitting out.

It is an object of the present invention to provide a suction valve for use by children and infants, so that the adapter fits the mouth and nose of the infant and is sealed to the face so that the infant can properly suck and spit out through the valve when breathing. It relates to a suction valve.

Still another object of the present invention is to provide a pediatric intake valve that allows sound to be generated during inhalation and exhaust so that the inhalation valve and the self-applying drug are applied to the infant.

The present invention provides a suction valve, most of which is the same as known in the prior patent No. 4,470,412, and has a molded rubber or plastic adapter or a face mask fitted to the nose and mouth of an infant or child. Such adapters are molded of foam or rubber material and the portion adjacent to the inlet valve of the adapter is relatively thick to provide considerable strength. However, the outer part of the adapter that fits the infant's face is tapered with a thin-walled cross section, making it very flexible, flexible and comfortable for the user.

A feature of the present invention as set forth above is a cylinder body having an upstream inlet end and a downstream outlet end, an elastomeric adapter means for accommodating a MauricePrice structure for supplying an inhalation drug at the aforementioned inlet end, in the aforementioned body. Is a one-way diaphragm valve means for allowing air and drugs to flow from the inlet end to the outlet end and preventing the flow from the above outlet to the inlet end and the face of the child An adapter of a mask-type that is secured, said adapter having a first conical frustum-shaped portion having an open base and a flared lateral wall with an open apex, wherein said apex is air-sealed; The second conical frustum-shaped portion, which is fixed to the above-mentioned exit end in a state and made of a flexible material, is a first cone It is coaxial with the head and has a flared side wall, an open base and an open apex, and the aforementioned second conical frustum shape apex is integral with the first part base, and the second part side wall is a first conical frustum. The mold part opens outwardly from the above-mentioned first part at an angle greater than that from the above-mentioned outlet end, and the above-mentioned second part base has an outer annular edge which makes an open base, and the side of the above-mentioned second part The inner surface of the wall has a conical frustum surface extending from the open apex to the base described above, the outer surface of the flange protrudes slightly to the right of the center line, and the upper side of the vertical center plane is recessed to the left and more than from the concave surface. Larger in the lower surface (FIG. 3), thereby allowing the face of the child to be at least adjacent to the outer edge described above It provides a pediatric drug inhaler, which is adapted to fit the face when it comes in contact, and the signaling means is mounted on the side wall of the first part of the adapter described above to provide a recognizable signal when the child breathes. Is achieved by doing so.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

As summarized in my previous patent no. 4,470,412, the canist or cartridge (also known as a nebulizer) is pressurized with a suitable diluent and adrenaline or other suitable anti-asthmatic drug. The cartridge fits in at right angles to the Maraudice receiving end, the opposite end being placed in the oral cavity of an asthmatic patient. The cartridge is pressed down and squeezed between the thumb and the forceps underneath the woodpiece. This ensures that the valve sack in the cartridge is pressed into the reaction base in the madpiece and a reasonable amount of drug is released into the madwood. Emissions at this time are considered to be in the form of mists, but often contain droplets of water. The patient inhales it, allowing the mist to pass through the oral cavity and, preferably, to the bronchus to provide asthma relief or relief. The patient stops breathing for the next long period and then inhales slowly through the nearly closed lips. However, as will be pointed out, for some time the drug remains in the form of droplets rather than mists, and these droplets do not reach the bronchus and do not reach their intended purpose.

As described in the foregoing patent, the droplet state may be sprayed into a mist state, and the patient may be properly inhaled through the use of a suction valve forming the patent idea of the prior patent No. 4,470,412. Such intake valves are not described in detail herein but are fully described until understood in conjunction with a pediatric adapter or face mask.

1 shows a suction valve 14 comprising a cylinder 16 which is preferably molded from a suitable plastic material. The cylinder has a radially inwardly facing flange 18 of limited size at its inlet edge (left end of FIG. 1). The flange at this time receives the outlet of the right angled woodpiece 12 and has a generally conical frustum shaped elastomeric adapter 20. Such adapters 20 of conical frustum shape and elastomeric properties are made to allow the squeeze of various sizes and structures to be firmly gripped.

Opposite this cylinder 16 is a periphery flange 22 which extends outwardly, which has a cylindrical flange 24 extending in the axial direction from the tip. At such a tip the cylindrical flange 24 is provided with an inward flange 26, at which point the inward flange is blocked in an arcuately spaced position to insert a tooth portion, which will be described later.

At the outlet end of the cylinder there is a spider 30 inside the flange 22. The spider at this time may be molded integrally with the cylinder 16, but it is more convenient that it is a separate plastic piece that is fixed in the cylinder by known techniques such as cementing, sonic welding, or the like. The spider includes an annular ring 32 and allows for the formation of a plurality of radial ribs connected together at the center 36. There are eight such ribs as an example in my previous patent 4,470,412, the exact number of which is not very important. However, when the parts are oriented as in Figure 1, at least a pair of ribs must extend diagonally across the spider in the horizontal direction.

Another structure at the outlet or right end of the cylinder is the same as in my previous patent 4,470,412. The rather elongated cylinder 40 has a suitable diameter and fits snugly against the inner edge of the flange 26 and has a radially extending flange 42 such that the flange is blocked so that the axial assembly passes through the flange 26. A tooth is created and rotated from the assembling position to hold the cylinder 40 and the flange 42 in place.

The resin or elastomeric diaphragm 44 lies just to the right of the spider 30 and has an outer periphery sandwiched between the flange 22 and the flange 42. The diaframe is devoid of pores except for the horizontal slit 45 extending across the horizontal radial ribs connected to the center 36. Thus, if there is any air pressure to the left from the outlet end of the valve 14, the diaphragm is pushed firmly towards the spider 30 and no air flow is allowed to the left. Inhalation, however, causes pressure from left to right, which causes the diaphragm to deflect from the spider as shown by the dashed line in FIG. 1, opening the slit into a fairly wide opening, thereby allowing airflow (and drug flow). ) Is allowed.

The pediatric intake valve of the present invention is finished by an adapter or accessory 46 having the properties of a face mask. The adapter 46 is molded from an elastic foam material, such as foam rubber of a closed cell or foam plastic of a closed cell, and includes an inner cross section 48 that is generally conical frustum shaped and has a gentle angle. At the inner end, the inner end 48 inner end has a cylindrical surface 50 sticking to the outer surface of the cylinder 40. The wall of the conical frustum-shaped portion 48 is relatively thick at its inner end 52 and thinned to the thinner section 54 adjacent to the outer margin. At the outer periphery 56, the adapter or appendage 46 forms outwardly flared at a wider angle and extends to the outer surface 60 of the appendage 58. The flange wall is somewhat thinner than the wall at 54 but gradually tapers towards a relatively thin section 64 close to the outer surface 60 and thickest at 62 near the knee-shaped bend 56. As shown in FIG. 2, the outer surface 60 has a circular shape as in the knee-shaped bend 56. But they do not form a true circle because they are not in a plane and have the same shape as shown in FIG. In particular, as shown in FIG. 1, the outer surface of the flange 58 extends somewhat to the right in the centerline, as indicated by 66, and dents to the left in the upper portion 68 on the vertical center plane. It is also tapered to the left also below the outermost tip of 66 and much larger to the concave surface 70 than to the concave surface 68. Thus the outer surface of such an adapter will be worn on the face to fit snugly under the chin along the cheek and along the cheek, with the concave surface 68 being in close contact with the bridge of the nose and the concave surface 70 being in close contact with the chin.

Such an adapter is completed by the provision of a whistle 72 made in a hole in the upper portion of the body 48 along the vertical center plane. This whistle 72 is of a kind often used in children's squeezed toys and will whistle as the air exits this whistle 72. At this time, the whistle 72 can be made so as not to pass through the air at the time of suction using a one-way valve mechanism. However, using such a one-way valve itself is not important as it will only provide a small amount of bypass air, which will never have any effect. The whistle 72 has a central bore 74 that acts as a discharge valve at the time of air discharge, and makes a whistling sound audible at the time of air discharge. You will find out. A certain amount of noise can be generated by such a whistle 72 upon inhalation of air, which must be beneficial for asthma treatment even though it is not necessarily indispensable.

It will be appreciated that a pediatric intake valve as shown and described so far uses the addition of a foam adapter as described above to a suction valve that is generally similar to that disclosed in my previous US Pat. No. 4,470,412. The thin adapter in the outer part can be well adapted to the face contours of most infants and is comfortable for infants and thus never threatening. In fact, if an infant is not overly scared by an asthma attack, he will feel some relief from the whistle of the whistle 72 as he exhales. The adapter may be removed or washed and reused when moving from one patient to another.

Adapter variants of the invention are shown in FIGS. 4 and 5, with like parts being denoted by like numbers with the addition of the suffix a. At this time, the adapter is shaped like a sandwich, and the base 80 has a conical frustum-like fuselage 48a slightly inclined over the cylindrical flange 40, and from morning 58 to morning outside 60a. It goes like this. Such a base is uniform in thickness and includes a whistle 72a similar to that described above. The base 80 is made of foam elastomer or, preferably, of plastic construction, and is in the form of a closed cell to avoid water absorption, such as the adapter 46.

As shown best in FIG. 5, the forwardly recessed (recessed) or off-cell portion (in the far wider portion 58a) in the uppermost portion of the intake valve to better accommodate the infant's nose. 82 is provided.

The base portion is made of a flexible but relatively hard foam material. A much softer foam ring 84 is secured to the inner or concave surface of the outwardly flared portion 58a by any suitable means such as adhesive. The ring 84 substantially matches the shape of the outwardly flared portion 58a. Such a ring can also be made of foam resin and a much softer material that makes it more suitable for the baby's cross section. Such foam ring 84 is made of closed cell characteristics and is preferably foam index, sometimes made of elastomeric material.

Finally, a relatively thin ring 86 is secured to the inner or concave surface of the ring 84. Such rings are made of a closed cell-like elastomeric material or foam resin and of a kind having a surface skin. Such surface skins are also preferred in the adapter 46 and in the base portion of the adapter 46a. The ring 86 is relatively thin and coincides with the shape of the ring 84 and the shape of the outwardly extending portion 58a, and particularly includes a forward facing protrusion or concave 88 aligned with the concave surface 82. The ring 86 is relatively thin because the ring 86 is mainly adapted to the infant's face due to the flexibility of the ring 84. An important aspect of such a thin structure is a pleasant contact with the infant's face. It is a surface skin that provides and can be easily wiped off without the risk of absorbing moisture.

In one embodiment of the invention, the maximum diameter of the adapter is about 3 to 3 and 1/2 inch.

The specific examples of the invention as described so far are for the purpose of explanation only. Undoubtedly, those skilled in the art will be able to make various structural changes to the present invention, which will be considered to constitute part of the invention as long as they fall within the spirit and scope of the appended claims. .

Claims (8)

A cylinder body 16 having an upstream inlet end and a downstream outlet end, an elastomeric adapter means 20 for receiving a marfeced structure 12 for supplying inhalation drug at the above inlet end, the above-mentioned body One-way diaphragm valve means 44 which allows air and drugs to flow from the aforementioned inlet end to the outlet end and prevents flow from the aforementioned outlet to the inlet end within 16 and the face of the child. And a mask-type adapter 46 fixed to the outlet end described above, the adapter 46 being trumpeted with an open base 54 and an open apex 52. The first conical frustum portion 48 of the flared side wall, wherein the above-mentioned apex is fixed to the outlet end described above with air sealed, and forms a second conical frustum portion formed of a flexible material ( 58) First It is coaxial with the conical frustum-shaped part 48 and has a flared side wall, an open base 60 and an open apex 62. The above-mentioned second conical frustum-shaped part 58 and the apex 62 are the first part base. Integral with (54), the second partial lateral wall is opened outwardly from the first portion described above at an angle greater than that of the first conical frustum shaped portion from the aforementioned outlet end; ) Has an outer annular edge to form an open base, and the inner surface of the side wall of the second part described above has a conical frustum-shaped surface extending from the open apex 62 to the base 60 described above. , The outer surface 66 of the flange 58 protrudes somewhat to the right from the center line, is recessed to the left in the upper portion 68 on the vertical center plane and is larger in the lower concave 70 than in the concave surface 68 (Figure 3), whereby at least Adapted to fit the face when it comes into contact with the pediatric face adjacent to one outer edge 56, and signaling means 72 are mounted on the side wall of the first portion of the adapter 48 described above to allow the pediatric breathing. Pediatric drug inhaler (14), characterized in that it provides a recognizable signal when. 2. A pediatric drug inhaler according to claim 1, characterized in that said adapter (46) has a side wall on said first conical frustum shaped portion (48), said signaling means (72) mounted on the side wall. The pediatric drug inhaler according to claim 2, wherein the aforementioned signal means (72) is made of whistle. The pediatric drug inhaler according to claim 1, wherein the aforementioned signal means (72) is made of whistle. 2. The adapter 46 of claim 1, wherein the first part 48 of the adapter 46 described above is made of a flexible material and is thickest near the outlet end described above (open apex 54), for gradually becoming flexible therefrom. Pediatric drug inhaler, characterized by tapering outwardly. 6. A pediatric drug inhaler according to claim 5, characterized in that the aforementioned second part (58) is thickest near the aforementioned first part (48) and gradually thinner outward therefrom. 2. The ring of claim 1, wherein the second portion 58 described above is in the form of a continuous ring and comprises a relatively softer ring at its inner surface near the outer edge (periphery) 56 described above so as to be in close contact with the child's face. Pediatric drug inhaler, characterized in that. 8. The face of a child according to claim 7, further comprising a face ring (thin section 64) in the relatively softer ring described above, and having an outer surface skin in the relatively softer ring described above. Pediatric drug inhaler, characterized in that to be in close contact with.

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