DK146675B

DK146675B - AEROSOL APPLICATOR

Info

Publication number: DK146675B
Application number: DK353773AA
Authority: DK
Inventors: Michael James
Original assignee: Allen & Hanburys Ltd
Priority date: 1972-06-27
Filing date: 1973-06-26
Publication date: 1983-12-05
Also published as: DE2332076C3; JPS5456993U; JPS4964286A; FI59337B; CA995540A; GB1402638A; DK146675C; CH553700A; US3865279A; JPS5912906Y2; NL172211C; DE2332076B2; NL172211B; FI59337C; NL7308470A; IT985757B; ZA734105B; AU5744373A; DE2332076A1; FR2190478A1

Description

146675146675

Opfindelsen angår en aerosolapplikator med et hus, der tjener til at optage en aerosolbeholder således, at aerosolbeholderens udtømningsåbning står i forbindelse med en på huset udformet og fra dette udragende applikatortud, og som har en åbning, gennem hvilken 5 aerosolbeholderen kan indføres i huset, og som, når aerosolbeholderen er anbragt i dette, blotter den modsat udtømningsåbningen beliggende ende af aerosoibeholderen.The invention relates to an aerosol applicator with a housing which serves to receive an aerosol container such that the discharge opening of the aerosol container communicates with an applicator spout formed on and out of the housing, and which has an opening through which the aerosol container can be introduced into the housing, and which, when the aerosol container is placed therein, exposes the end of the aerosol container located opposite the discharge opening.

Aerosoler er eksempelvis almindeligt anvendt ved behandling af tilstande eller lidelser i næse, hals eller mund. Aerosolerne påføres de 10 relevante dele ved hjælp af nasal- eller oralapplikatorer, der sædvanligvis har et hus, i hvilket der er anbragt en udskiftelig aerosolbeholder. Dette hus har en applikatortud med en udstrømningsåbning, der sædvanligvis er lukket ved hjælp af et aftageligt dæksel, og et luftindløb, så at medikamentet uddrives af den luft, der indføres i 15 applikatoren, idet blandingen så udtømmes gennem appllkatortuden.Aerosols, for example, are commonly used in the treatment of conditions or disorders of the nose, throat or mouth. The aerosols are applied to the 10 relevant parts by means of nasal or oral applicators, which usually have a housing in which a replaceable aerosol container is arranged. This housing has an applicator spout with an outflow opening, which is usually closed by means of a removable cover, and an air inlet so that the medicament is expelled by the air introduced into the applicator, the mixture then being discharged through the applicator spout.

Sådanne applikatorer er beregnet til at blive medbragt af brugeren i en lomme eller en håndtaske.Such applicators are intended to be carried by the user in a pocket or handbag.

Fra tysk offentliggørelsesskrift nr. 19 61 486 kendes en aerosolbeholder til dosering af medikamenter. Denne beholder er imidlertid 20 ikke beregnet til at blive omsluttet af et hus, der kan tjene som applikator, men aerosolbeholderens udtømningskanal er på sædvanlig måde forsynet med et dysehoved, der, når beholderen ikke er i brug, kan omsluttes af en separat beskyttelses hætte. Fra USA-patentskrift nr. 2.570.268 kendes en inhalator, der er omsluttet af et hylster eller 25 hus, som er forsynet med et hængslet låg. Dette hus er imidlertid af en helt anden art end applikatoren ifølge opfindelsen, idet huset ikke har form af en applikator med en på huset udformet og fra dette udragende tud.German Offenlegungsschrift No. 19 61 486 discloses an aerosol container for dosing drugs. However, this container is not intended to be enclosed by a housing which can serve as an applicator, but the discharge channel of the aerosol container is in the usual way provided with a nozzle head which, when the container is not in use, can be enclosed by a separate protective cap. U.S. Pat. No. 2,570,268 discloses an inhaler enclosed by a casing or housing provided with a hinged lid. However, this housing is of a completely different kind than the applicator according to the invention, in that the housing does not have the shape of an applicator with a spout formed on the housing and projecting from it.

Fra dansk fremlæggelsesskrift nr. 132.993 kendes et aerosolafgivel-30 sesapparat, der har en fra huset udragende udtømningstud, hvis udstrømningsåbning kan lukkes ved hjælp af et til huset hængselsforbundet låg. Dette kendte aerosolafgivelsesapparat er imidlertid inhalationsaktiveret, og der er således ikke som ved applikatoren ifølge opfindelsen tale om, at aerosoludtømningen kræver en manuel påvirk-35 ning af aerosolbeholderen.From Danish Offenlegungsschrift No. 132,993, an aerosol dispensing device is known which has a discharge spout projecting from the housing, the outlet opening of which can be closed by means of a hinge connected to the housing. However, this known aerosol delivery device is inhalation-activated, and thus it is not the case, as with the applicator according to the invention, that the aerosol discharge requires a manual actuation of the aerosol container.

2 1-466752 1-46675

Ved anvendelse af en aerosolapplikator af den indledningsvis nævnte kendte art går det dæksel eller låg, der omslutter applikatortuden, let tabt, og applikatortuden samt dennes udtømningskanal bliver da let forurenet eller tilstoppet, når applikatoren ligger løst i en lomme 5 eller håndtaske, hvilket kan bevirke en forringelse af behandlingseffektiviteten. Når aerosolapplikatoren skal anvendes, åbner man normalt aerosolbeholderens udtømnings venti I ved at trykke på den ende af aerosolbeholderen, der er blottet af indføringsåbningen i det omsluttende hus, og forinden udtømningsventilen aktiveres, må man 10 naturligvis sørge for, at det løse dæksel på applikatortuden er blevet fjernet. Sker dette ikke, vil det fra aerosolbeholderen udtømte materiale sætte sig på aerosolbeholderens eller husets vægge, hvorved risikoen for tilsmudsning af applikatoren yderligere forøges.When using an aerosol applicator of the known type initially mentioned, the cover or lid enclosing the applicator spout is easily lost, and the applicator spout and its discharge channel are then easily contaminated or clogged when the applicator is loose in a pocket 5 or handbag, which can cause a deterioration in treatment effectiveness. When the aerosol applicator is to be used, one usually opens the discharge valve I of the aerosol canister by pressing on the end of the aerosol canister which is exposed by the inlet opening in the enclosing housing and before the discharge valve is activated, one must of course make sure that the loose cover on the applicator spout is has been removed. If this does not happen, the material discharged from the aerosol container will settle on the walls of the aerosol container or housing, further increasing the risk of soiling the applicator.

Aerosolapplikatoren ifølge opfindelsen er ejendommelig ved, at den har 15 et til huset hængslet låg, der er således udformet og anbragt, at det i sin lukkede stilling dækker såvel husets indføringsåbning som appli-katortudens udstrømningsåbning. Derved undgår man, at låget går tabt, og at kontaminerende materialer af den art, der kan findes i en lomme eller håndtaske, kommer i forbindelse med applikatortuden, 20 hvilket især er vigtigt, når applikatoren anvendes til applikering af et medikament, der benyttes ved behandling af tilstande som allergisk rhinitis. Endvidere undgås det, at aerosolbeholderens udtømningsventil kan aktiveres, uden at applikatortuden er blevet blottet.The aerosol applicator according to the invention is characterized in that it has a lid hinged to the housing, which is designed and arranged so that in its closed position it covers both the inlet opening of the housing and the outflow opening of the applicator spout. This prevents the lid from being lost and contaminating materials of the kind that can be found in a pocket or handbag from coming into contact with the applicator spout, which is especially important when the applicator is used for applying a medicament used in treatment of conditions such as allergic rhinitis. Furthermore, it is avoided that the discharge valve of the aerosol can can be activated without the applicator spout having been exposed.

I det følgende vil en foretrukken udførelsesform for aerosolapplika-25 toren blive nærmere beskrevet under henvisning til tegningen, på hvilken fig. 1 viser et snit i applikatoren, der består af to dele, fig. 2 den samlede applikator i dens åbne stilling, og fig. 3 applikatoren i dens lukkede stilling.In the following, a preferred embodiment of the aerosol applicator will be described in more detail with reference to the drawing, in which fig. 1 shows a section of the applicator consisting of two parts, fig. 2 shows the assembled applicator in its open position, and FIG. 3 the applicator in its closed position.

30 Den viste udførelsesform for aerosolapplikatoren ifølge opfindelsen er beregnet til nasalaerosoler og har et hus eller legeme 1 og et dæksel eller et låg 2, der er indbyrdes forbundet ved hjælp af et hængsel.The illustrated embodiment of the aerosol applicator according to the invention is intended for nasal aerosols and has a housing or body 1 and a cover or lid 2 which are interconnected by means of a hinge.

Legemet, låget og hængslet er hensigtsmæssigt sprøjtestøbt som to særskilte dele af et passende plastmateriale, fortrinsvis polypropylen.The body, lid and hinge are suitably injection molded as two separate parts of a suitable plastic material, preferably polypropylene.

146675 3 Hængslet er fortrinsvis af den art, der dannes af to tynde bøjelige membraner 3 og 4, der er støbt som dele af de respektive komponenter.The hinge is preferably of the type formed by two thin flexible membranes 3 and 4 molded as parts of the respective components.

Membranen 4 har en i ét dermed udformet tap 5, der sammen med en 5 komplementær åbning 6 i membranen 3 danner en tryklås. Lågets membran 4 har en del 7 med formindsket tykkelse. Denne del 7 har et skråt anlæg 8, mod hvilket en skrå kant 9 på membranen 3 ligger an, når legemet og låget er samlet.The diaphragm 4 has a pin 5 formed integrally therewith, which together with a complementary opening 6 in the diaphragm 3 forms a snap lock. The membrane 4 of the lid has a part 7 of reduced thickness. This part 7 has an inclined abutment 8, against which a sloping edge 9 of the membrane 3 abuts when the body and the lid are assembled.

Legemet 1 har i hovedsagen form af et cylindrisk rør og er lukket 10 ved sin ene ende 10 og åbent ved sin anden ende 11. For at lette beskrivelsen vil legemets åbne ende i det følgende blive anset for at være den øverste ende. Legemets åbne øverste ende 11 fører ind i et kammer 12, i hvilket der kan indsættes en aerosolbeholder (vist med stiplede linjer) for et medikament. Kammeret omsluttes ved en ende-15 væg 13 med en gennemgående kanal 14, gennem hvilken aerosolbeholderens udløb kan føres, og en ribbe 15 eller et andet passende organ, der kan indgribe med et komplementært organ på aerosolbeholderen, så at denne aftageligt fastholdes i kammeret. Aerosolbeholderen og kammeret har sådanne indbyrdes dimensioner, at der dannes 20 et luftmellemrum mellem beholderens ydervæg og kammerets indervæg, og enden af beholderen rager en lille smule op over kammerets åbne ende. Bevægelse af aerosolbeholderen mod kammerets endevæg vil på konventionel måde åbne en aerosolventil i beholderen, så at aerosol kan passere fra aerosoludløbet og ind i et neden under kammerets 25 endevæg beliggende rum 16. Der kan også strømme luft ind i dette rum fra luftindløbsmellemrummet i kammeret.The body 1 is substantially in the form of a cylindrical tube and is closed 10 at its one end 10 and open at its other end 11. In order to facilitate the description, the open end of the body will in the following be considered to be the upper end. The open upper end 11 of the body leads into a chamber 12 into which an aerosol container (shown in broken lines) for a medicament can be inserted. The chamber is enclosed by an end wall 13 with a through-going channel 14, through which the outlet of the aerosol container can be passed, and a rib 15 or another suitable member which can engage with a complementary member on the aerosol container so that it is removably retained in the chamber. The aerosol container and the chamber have such mutual dimensions that an air gap is formed between the outer wall of the container and the inner wall of the chamber, and the end of the container protrudes a little above the open end of the chamber. Movement of the aerosol container towards the end wall of the chamber will conventionally open an aerosol valve in the container so that aerosol can pass from the aerosol outlet and into a space 16 below the end wall of the chamber 25. Air can also flow into this space from the air inlet space of the chamber.

Et tudformet applikatorudløb 17 rager fra dette udløbsrum ud fra applikatorlegemets rørformede væg. Dette applikatorudløb 17 er rettet skråt opefter. Det er klart, at applikatorudløbet kan have andre 30 formet og anbringelser, hvis der ikke er tale om en nasalapplikator, men f.eks. en oralapplikator.A spout-shaped applicator outlet 17 projects from this outlet space from the tubular wall of the applicator body. This applicator outlet 17 is directed obliquely upwards. It is clear that the applicator outlet can have other shapes and placements if it is not a nasal applicator, but e.g. an oral applicator.

Låget 2 er udformet således, at det, når det er i sin lukkede stilling, ikke blot lukker det rørformede legemes åbne ende, men også inde-The lid 2 is designed so that, when in its closed position, it not only closes the open end of the tubular body, but also inside

Claims

146675 closes the spout-shaped applicator outlet 17. For this reason, the lid has a cross-section which is approximately in the shape of an inverted L. It thus has an upper part which is connected to the applicator body by means of the hinge membrane 4 located on the side of the applicator body -5 met s axis opposite the spout-like applicator outlet 17. When the lid 2 is closed, this upper part lies across the upper part of the applicator body (see fig. 3). Said upper part has a flat wall or flange enclosing the projecting end of the aerosol container. When the lid is closed, said upper part closes the space between the walls of the aerosol container and the applicator chamber, so that no dirt or other contaminants can enter therein. The lid also has another part or a side part which is designed approximately as a cylinder segment, so that this part, when the lid is closed, will enclose the spout-like applicator outlet and prevent the ingress of dirt or other contaminants. When the lid is closed, it fits on the applicator body with a pressure fit so that the lid stays closed.

An aerosol applicator having a housing (1) which serves to receive an aero solar container such that the discharge opening of the aerosol container communicates with an applicator (17) formed on the housing and projecting therefrom and having an opening (11) , through which the aerosol container can be introduced into the housing, and which, when the aerosol container is arranged therein, exposes the end of the aerosol container located opposite the discharge opening, characterized in that the applicator has a lid (2) hinged to the housing (1), is designed and arranged in such a way that, in its closed position, it covers both the inlet opening (11) of the housing and the outflow opening of the applicator spout (17).