EP2558149A1 - Dry powder inhaler mouthpiece button - Google Patents
Dry powder inhaler mouthpiece buttonInfo
- Publication number
- EP2558149A1 EP2558149A1 EP11726524A EP11726524A EP2558149A1 EP 2558149 A1 EP2558149 A1 EP 2558149A1 EP 11726524 A EP11726524 A EP 11726524A EP 11726524 A EP11726524 A EP 11726524A EP 2558149 A1 EP2558149 A1 EP 2558149A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- dry powder
- medicament
- inhaler
- substance
- powder form
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 229940112141 dry powder inhaler Drugs 0.000 title 1
- 239000003814 drug Substances 0.000 claims abstract description 82
- 239000000843 powder Substances 0.000 claims abstract description 78
- 239000000126 substance Substances 0.000 claims description 64
- 230000000844 anti-bacterial effect Effects 0.000 claims description 36
- 238000000576 coating method Methods 0.000 claims description 15
- 239000000463 material Substances 0.000 claims description 15
- -1 Triclosan) Chemical class 0.000 claims description 14
- 239000013543 active substance Substances 0.000 claims description 14
- 239000011248 coating agent Substances 0.000 claims description 13
- 239000002775 capsule Substances 0.000 claims description 12
- 229920006324 polyoxymethylene Polymers 0.000 claims description 9
- 239000000546 pharmaceutical excipient Substances 0.000 claims description 7
- 150000003839 salts Chemical class 0.000 claims description 7
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 claims description 6
- XECAHXYUAAWDEL-UHFFFAOYSA-N acrylonitrile butadiene styrene Chemical compound C=CC=C.C=CC#N.C=CC1=CC=CC=C1 XECAHXYUAAWDEL-UHFFFAOYSA-N 0.000 claims description 6
- 239000004676 acrylonitrile butadiene styrene Substances 0.000 claims description 6
- GUBGYTABKSRVRQ-QKKXKWKRSA-N Lactose Natural products OC[C@H]1O[C@@H](O[C@H]2[C@H](O)[C@@H](O)C(O)O[C@@H]2CO)[C@H](O)[C@@H](O)[C@H]1O GUBGYTABKSRVRQ-QKKXKWKRSA-N 0.000 claims description 5
- 150000005846 sugar alcohols Polymers 0.000 claims description 5
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 4
- 229930040373 Paraformaldehyde Natural products 0.000 claims description 4
- 239000004698 Polyethylene Substances 0.000 claims description 4
- 239000004743 Polypropylene Substances 0.000 claims description 4
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 4
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- FBPFZTCFMRRESA-JGWLITMVSA-N D-glucitol Chemical compound OC[C@H](O)[C@@H](O)[C@H](O)[C@H](O)CO FBPFZTCFMRRESA-JGWLITMVSA-N 0.000 claims description 3
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- OWEGMIWEEQEYGQ-UHFFFAOYSA-N 100676-05-9 Natural products OC1C(O)C(O)C(CO)OC1OCC1C(O)C(O)C(O)C(OC2C(OC(O)C(O)C2O)CO)O1 OWEGMIWEEQEYGQ-UHFFFAOYSA-N 0.000 claims description 2
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- GUBGYTABKSRVRQ-XLOQQCSPSA-N Alpha-Lactose Chemical compound O[C@@H]1[C@@H](O)[C@@H](O)[C@@H](CO)O[C@H]1O[C@@H]1[C@@H](CO)O[C@H](O)[C@H](O)[C@H]1O GUBGYTABKSRVRQ-XLOQQCSPSA-N 0.000 claims description 2
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- 239000005639 Lauric acid Substances 0.000 claims description 2
- GUBGYTABKSRVRQ-PICCSMPSSA-N Maltose Natural products O[C@@H]1[C@@H](O)[C@H](O)[C@@H](CO)O[C@@H]1O[C@@H]1[C@@H](CO)OC(O)[C@H](O)[C@H]1O GUBGYTABKSRVRQ-PICCSMPSSA-N 0.000 claims description 2
- 239000004696 Poly ether ether ketone Substances 0.000 claims description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 2
- 229930006000 Sucrose Natural products 0.000 claims description 2
- CZMRCDWAGMRECN-UGDNZRGBSA-N Sucrose Chemical compound O[C@H]1[C@H](O)[C@@H](CO)O[C@@]1(CO)O[C@@H]1[C@H](O)[C@@H](O)[C@H](O)[C@@H](CO)O1 CZMRCDWAGMRECN-UGDNZRGBSA-N 0.000 claims description 2
- XEFQLINVKFYRCS-UHFFFAOYSA-N Triclosan Chemical compound OC1=CC(Cl)=CC=C1OC1=CC=C(Cl)C=C1Cl XEFQLINVKFYRCS-UHFFFAOYSA-N 0.000 claims description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 2
- 239000002253 acid Substances 0.000 claims description 2
- 150000007513 acids Chemical class 0.000 claims description 2
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- 150000001412 amines Chemical class 0.000 claims description 2
- 230000000954 anitussive effect Effects 0.000 claims description 2
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- 229940121363 anti-inflammatory agent Drugs 0.000 claims description 2
- 239000002260 anti-inflammatory agent Substances 0.000 claims description 2
- 230000003110 anti-inflammatory effect Effects 0.000 claims description 2
- 229940065524 anticholinergics inhalants for obstructive airway diseases Drugs 0.000 claims description 2
- 229940125715 antihistaminic agent Drugs 0.000 claims description 2
- 239000000739 antihistaminic agent Substances 0.000 claims description 2
- 229960005475 antiinfective agent Drugs 0.000 claims description 2
- 239000003434 antitussive agent Substances 0.000 claims description 2
- 229940124584 antitussives Drugs 0.000 claims description 2
- PYMYPHUHKUWMLA-WDCZJNDASA-N arabinose Chemical compound OC[C@@H](O)[C@@H](O)[C@H](O)C=O PYMYPHUHKUWMLA-WDCZJNDASA-N 0.000 claims description 2
- PYMYPHUHKUWMLA-UHFFFAOYSA-N arabinose Natural products OCC(O)C(O)C(O)C=O PYMYPHUHKUWMLA-UHFFFAOYSA-N 0.000 claims description 2
- OGBUMNBNEWYMNJ-UHFFFAOYSA-N batilol Chemical class CCCCCCCCCCCCCCCCCCOCC(O)CO OGBUMNBNEWYMNJ-UHFFFAOYSA-N 0.000 claims description 2
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid group Chemical group C(C1=CC=CC=C1)(=O)O WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 claims description 2
- SRBFZHDQGSBBOR-UHFFFAOYSA-N beta-D-Pyranose-Lyxose Natural products OC1COC(O)C(O)C1O SRBFZHDQGSBBOR-UHFFFAOYSA-N 0.000 claims description 2
- WQZGKKKJIJFFOK-VFUOTHLCSA-N beta-D-glucose Chemical compound OC[C@H]1O[C@@H](O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-VFUOTHLCSA-N 0.000 claims description 2
- GUBGYTABKSRVRQ-QUYVBRFLSA-N beta-maltose Chemical compound OC[C@H]1O[C@H](O[C@H]2[C@H](O)[C@@H](O)[C@H](O)O[C@@H]2CO)[C@H](O)[C@@H](O)[C@@H]1O GUBGYTABKSRVRQ-QUYVBRFLSA-N 0.000 claims description 2
- 229940124630 bronchodilator Drugs 0.000 claims description 2
- 239000000168 bronchodilator agent Substances 0.000 claims description 2
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 2
- 229920002301 cellulose acetate Polymers 0.000 claims description 2
- 239000000812 cholinergic antagonist Substances 0.000 claims description 2
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- 235000014113 dietary fatty acids Nutrition 0.000 claims description 2
- 235000013681 dietary sucrose Nutrition 0.000 claims description 2
- USIUVYZYUHIAEV-UHFFFAOYSA-N diphenyl ether Chemical class C=1C=CC=CC=1OC1=CC=CC=C1 USIUVYZYUHIAEV-UHFFFAOYSA-N 0.000 claims description 2
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- 239000002934 diuretic Substances 0.000 claims description 2
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- 239000003925 fat Substances 0.000 claims description 2
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- 229940088597 hormone Drugs 0.000 claims description 2
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- 235000010355 mannitol Nutrition 0.000 claims description 2
- HEBKCHPVOIAQTA-UHFFFAOYSA-N meso ribitol Natural products OCC(O)C(O)C(O)CO HEBKCHPVOIAQTA-UHFFFAOYSA-N 0.000 claims description 2
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- FQENQNTWSFEDLI-UHFFFAOYSA-J sodium diphosphate Chemical compound [Na+].[Na+].[Na+].[Na+].[O-]P([O-])(=O)OP([O-])([O-])=O FQENQNTWSFEDLI-UHFFFAOYSA-J 0.000 claims description 2
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- MNDBXUUTURYVHR-UHFFFAOYSA-N roflumilast Chemical compound FC(F)OC1=CC=C(C(=O)NC=2C(=CN=CC=2Cl)Cl)C=C1OCC1CC1 MNDBXUUTURYVHR-UHFFFAOYSA-N 0.000 description 1
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Classifications
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- A61M15/00—Inhalators
- A61M15/0001—Details of inhalators; Constructional features thereof
- A61M15/0021—Mouthpieces therefor
- A61M15/0025—Mouthpieces therefor with caps
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- A61M15/0028—Inhalators using prepacked dosages, one for each application, e.g. capsules to be perforated or broken-up
- A61M15/003—Inhalators using prepacked dosages, one for each application, e.g. capsules to be perforated or broken-up using capsules, e.g. to be perforated or broken-up
- A61M15/0043—Non-destructive separation of the package, e.g. peeling
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- A61M15/0028—Inhalators using prepacked dosages, one for each application, e.g. capsules to be perforated or broken-up
- A61M15/0045—Inhalators using prepacked dosages, one for each application, e.g. capsules to be perforated or broken-up using multiple prepacked dosages on a same carrier, e.g. blisters
- A61M15/0046—Inhalators using prepacked dosages, one for each application, e.g. capsules to be perforated or broken-up using multiple prepacked dosages on a same carrier, e.g. blisters characterized by the type of carrier
- A61M15/0051—Inhalators using prepacked dosages, one for each application, e.g. capsules to be perforated or broken-up using multiple prepacked dosages on a same carrier, e.g. blisters characterized by the type of carrier the dosages being arranged on a tape, e.g. strips
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- A61M15/0045—Inhalators using prepacked dosages, one for each application, e.g. capsules to be perforated or broken-up using multiple prepacked dosages on a same carrier, e.g. blisters
- A61M15/0053—Inhalators using prepacked dosages, one for each application, e.g. capsules to be perforated or broken-up using multiple prepacked dosages on a same carrier, e.g. blisters characterized by the type or way of disposal
- A61M15/0055—Inhalators using prepacked dosages, one for each application, e.g. capsules to be perforated or broken-up using multiple prepacked dosages on a same carrier, e.g. blisters characterized by the type or way of disposal the used dosages being coiled
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- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
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- A61M15/0065—Inhalators with dosage or measuring devices
- A61M15/0068—Indicating or counting the number of dispensed doses or of remaining doses
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- A61M15/0071—Mechanical counters having a display or indicator
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- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
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- A61M2205/00—General characteristics of the apparatus
- A61M2205/02—General characteristics of the apparatus characterised by a particular materials
- A61M2205/0205—Materials having antiseptic or antimicrobial properties, e.g. silver compounds, rubber with sterilising agent
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- A61M2205/00—General characteristics of the apparatus
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- A—HUMAN NECESSITIES
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- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2205/00—General characteristics of the apparatus
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- A61M2205/0238—General characteristics of the apparatus characterised by a particular materials the material being a coating or protective layer
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- A61M2205/00—General characteristics of the apparatus
- A61M2205/27—General characteristics of the apparatus preventing use
- A61M2205/276—General characteristics of the apparatus preventing use preventing unwanted use
Definitions
- the present invention relates to an inhaler which is appropriate for delivering the medicament in dry powder form used in the treatment of respiratory diseases, particularly in asthma and chronic obstructive pulmonary disease (COPD).
- COPD chronic obstructive pulmonary disease
- the present invention relates to an inhaler developed for delivering the medicament in dry powder form.
- inhalers for delivering medicaments utilized in the treatment and prophylaxis of respiratory diseases by the oral route.
- Inhalation treatment is the most commonly preferred treatment method in these diseases as the inhalers provide ease of use; the medicaments have more rapid onset of time resulting from local administration and they have fewer side effects.
- Various inhalers have been designed in order to provide effective and sufficient delivery of the medicaments used in the treatment of respiratory diseases, particularly in asthma and chronic obstructive pulmonary disease. These inhalers vary according to their operating mechanisms, some properties they hold and the physical form of the medicament to be delivered.
- the inventor has surprisingly found that the amount of residual dry powder medicament in the device significantly decreases in addition to attaining to hygienic inhalation in the case that each component of the device, particularly the components that the medicament in dry powder form passes through in course of the inhalation, is coated with antistatic materials and antibacterial substances or these components are manufactured from substances comprising antistatic and antibacterial substances in the inhalers appropriate for delivery of dry powder medicament.
- the present invention relates to inhalers which enable hygienic and effective inhalation used for delivery of medicaments in dry powder form.
- An inhaler suitable for delivery of the medicament in dry powder form according to the present invention is characterized in that each component of the device,
- - is made of substances comprising antistatic and/or antibacterial substance.
- the components possessing the characteristics specified above are preferably the components that the medicament in dry powder form passes through in course of inhalation.
- the components defined as the components that the medicament in dry powder form passes through during inhalation are mouthpiece; the component which is generally called as the manifold that resides between the mouthpiece and the place that the dry powder medicament is situated; the channel or the channels interconnecting the manifold and the mouthpiece; the apertures that the medicament in dry powder form passes through and the components that the medicament in dry powder form is in contact with such as sieves.
- the surfaces that the medicament in dry powder form is in contact with are the inner faces of the device.
- bacteria in the mouth or external bacteria that adhere on the mouthpiece accumulate in the mouthpiece part of the device which is in contact with the mouth.
- external bacteria may accumulate in the device since the device can be taken everywhere.
- the surface of each component of the device particularly the mouthpiece part and the components that the medicament in dry powder form passes through are coated with antibacterial substance or these components are made of materials comprising antibacterial substance.
- an effective inhalation refers to an inhalation enabling the delivery of the required amount of the active agent for the treatment to the lungs of the patient.
- each component of the inhaler preferably the components that the medicament in dry powder form passes through
- the coating on the surfaces of said components of the device pertaining to the present invention is made preferably using fluids comprising antibacterial substance and/or antistatic substance.
- antibacterial and/or antistatic substance-coated zones can be created on the surface of each component of the device pertaining to the present invention. Each of these zones can comprise solely antibacterial substance or solely antistatic substance or both antibacterial and antistatic substance. Nevertheless, each of these zones can comprise antibacterial and/or antistatic substances at different density.
- the coating comprising antibacterial and/or antistatic substance can be coated on the specified components of the device preferably by surface spraying procedure.
- the coating containing antibacterial and/or antistatic substances which is used to coat the specified components of the device pertaining to the present invention with the purpose of realizing a hygienic and effective inhalation comprises;
- - antibacterial substance in the range of 0,002% to 7%, preferably in the range of 0,01% - antistatic substance in the range of 0,001% to 6%, preferably in the range of 0,01% to 5% of the total weight of the coating.
- the specified components of the device pertaining to the present invention can be made of materials comprising antibacterial and/or antistatic substances in order to realize a hygienic and effective inhalation.
- Each component of the inhaler comprising antibacterial substance and/or antistatic substance comprises;
- - antibacterial substance in the range of 0,001% to 8%, preferably in the range of 0,01% to 5% of the total weight of the device component, and/or
- - antistatic substance in the range of 0,002% to 8%, preferably in the range of 0,01% to 6% of the total weight of the device component.
- said components of the inhaler pertaining to the present invention can be made of materials comprising either antibacterial substance or antistatic substance, or they can be coated with coatings comprising either one of these.
- said components of the inhaler pertaining to the present invention can be made of materials comprising both an antibacterial substance and an antistatic substance, or they can be coated with coatings comprising both substances.
- the inhaler pertaining to the present invention is an inhalation device enabling delivery of medicament in dry powder form to the patient such as Foradil (NOVARTIS), Diskus /Glaxo Smithkline), SPIRIVA® Handihaler® (Boehringer Ing. and Pfizer).
- This device enables delivery of the medicament in dry powder form from blister package, capsule or reservoir.
- the blister package providing to carry the medicament in dry powder form in the inhaler pertaining to the present invention is composed of blister pockets each of which generally contain one dose of medicament in dry powder form.
- the capsule used to carry the medicament in dry powder form generally contains one dose of medicament in dry powder form.
- the dry powder medicament in the capsule or the blister pocket that is opened upon the actuation of the device is generally entrained to the mouthpiece through the manifold. As the air flow which enters the device upon the inhalation of the patient and entrains the medicament in dry powder form passes through the manifold faster than it passes through the other components, the rate of electrostatic charge generation in the manifold is far more than the other components in course of the inhalation.
- the surface of the manifold through which the airflow entraining the medicament in dry powder form passes can preferably be coated with a coating comprising only antistatic substance or the manifold component can preferably be made of a material comprising only antistatic substance in order to lower the manufacturing costs.
- some other components through which the airflow containing the medicament in dry powder form passes rapidly such as the channel which interconnects the manifold and the mouthpiece and through which the medicament in dry powder form passes in some devices.
- These components can preferably be made of materials comprising only antistatic substance and the inner surface through which the airflow containing the medicament in dry powder form passes can be coated with a coating comprising only antistatic substance.
- the mouthpiece which is in contact with the patient's mouth in course of inhalation is the device component wherein the most bacteria are accumulated.
- the mouthpiece of the device can preferably be coated with a coating comprising only antibacterial substance or it can preferably be made of a material comprising only antibacterial substance in order to decrease the manufacturing costs. Hygienic inhalation of the medicament in dry powder is substantially enabled in this way.
- the antistatic substances mentioned in the present invention are preferably selected from a group comprising nitrogenous compounds such as long chain amines, amides, quaternary bases and salts thereof; glycerin esters; sulphonic acids or sulphonates; phosphoric acids or salts thereof; polyglycol or polyalcohol derivatives; monoglycerides of saturated natural fats; cholinesterase chlorides of straight-chain natural fatty acids; dietanolamid of natural saturated fatty acids with lauric acid dietanolamid; sodium pyrophosphate; potassium acetate or combinations thereof.
- nitrogenous compounds such as long chain amines, amides, quaternary bases and salts thereof; glycerin esters; sulphonic acids or sulphonates; phosphoric acids or salts thereof; polyglycol or polyalcohol derivatives; monoglycerides of saturated natural fats; cholinesterase chlorides of straight-chain natural fatty acids; dietanolamid of natural saturated fatty
- the antibacterial substances mentioned in the present invention are preferably selected from a group comprising organic compounds such as halogenated diphenyl ethers (e.g. Triclosan), phenyl compounds, halophenoics and bisphenolic compounds, resorcinol and derivatives thereof, benzoic esters, quaternary ammonium compounds; metals such as silver, zinc and copper; other inorganic compounds such as zeolites and Na-Al silicates; natural products comprising chitosan and vegetable oils or combinations thereof.
- the blister package used in the inhaler comprising blister package pertaining to the present invention carries the medicament in dry powder form in one-dose portions and it is preferably a blister strip and it is preferably peelable.
- the blister pockets of the blister package each of which contains one dose dry powder medicament are spaced in equal intervals.
- the lid and the base sheets constituting the blister package preferably consist of a plurality of layers.
- Each of these layers are preferably chosen from a group comprising polymeric layers that are made of various polymeric substances; aluminum foil and fluoropolymer film.
- the lid and base sheets composing the blister package are sealed very tightly by at least one of the methods comprising cold formed bonding, hot metal bonding, hot metal welding, radio frequency welding, laser welding or ultrasonic welding in order to provide impermeability, more preferably by cold formed bonding method. Since these cold formed bonding methods can be carried out at lower temperatures than hot sealing methods, they are the most appropriate methods to use in the case that the medicament carried in the blister is heat sensitive.
- Fluoropolymer film is a polymeric film which is used in blister packs and provides excellent moisture barrier. This chemically inert polymeric film does not cause any change in the taste of the formulation when it is in contact with the dry powder formulation. In addition, it easily constitutes a layered structure with the other polymeric layers which are composed of various polymers. It is appropriate to be transacted with heat.
- At least one of the polymeric layers comprises at least one desiccant agent including silica gel, zeolite, alumina, bauxite, anhydrous calcium sulfate, activated carbon and clay which has the property of water absorption in order to decrease gas and moisture permeability of the layer.
- desiccant agent including silica gel, zeolite, alumina, bauxite, anhydrous calcium sulfate, activated carbon and clay which has the property of water absorption in order to decrease gas and moisture permeability of the layer.
- the thickness of the aluminum foil in the lid and the base sheets of the blister package are preferably chosen to be in the range of 5 to 80 ⁇ , more preferably in the range of 15 to 65 ⁇ .
- the polymeric layers in the lid and the base sheets of the blister pack are made of the same or different polymers. The thickness of these polymeric layers varies according to the type of the polymeric substance used and its properties while they are preferably in the range of 5 to 100 ⁇ , more preferably in the range of 15- 60 ⁇ .
- the polymers composing the polymeric layer are preferably selected from thermoplastics such as polyethylene, polypropylene, polystyrene, polyolefin, polyamide, polyvinyl chloride, polyurethane or synthetic polymers.
- the blister pockets in the blister package can be in any appropriate shape.
- the plurality of blister pockets spaced at equal intervals on the base sheet of the blister package can be in the same or different shape, structure or volume.
- the capsule used in the inhaler comprising capsules pertaining to the present invention can be made of a substance chosen from the group comprising gelatin, chitosan, starch and/or starch derivatives, cellulose ad/or cellulose derivatives or synthetic polymers and it is comprised of intertwining upper and lower compartments.
- the upper and the lower compartments of said capsule can be made of the same or different materials.
- the capsule material can be selected from, but not limited to, a group comprising hydroxypropyl cellulose, hydroxypropylmethyl cellulose, methyl cellulose, hydroxymethyl cellulose, hydroxyethyl cellulose in the case that the capsule used in the present invention is made of cellulose or its derivatives.
- the capsule material can be selected from, but not limited to, a group including polyethylene, polyester, polyetheleneteraphtalate, polycarbonate or polypropylene.
- capsule material used in the present invention is gelatine
- additional agents such as polyethylene glycol, sorbitol, glycerol, propylene glycol, polyethylene oxide - polypropylene oxide block copolymers and/or other polyalcohols or polyethers at different molecular weights can be added into it.
- Each component of the device pertaining to the present invention can be made of any appropriate substance while it is preferably selected from a group comprising styrene- acrylonitrile, polyoxymethylene (it is generally named as POM and it is also known as polyacetal or polyformaldehyde), acrylic-polymethylmetacrylate, cellulose acetate, polyetheretherketone, polyvinyl choloride, polyethylene, polypropylene, acrylonitrile butadiene styrene, silicon, polycarbonate, polyamide, polystyrene, polyurathane or fluoropolymer types.
- the mouthpiece of the device pertaining to the present invention is preferably made of silicon, acrylonitrile butadiene styrene or polyoxymethylene plastics.
- the manifold of the inhaler pertaining to the present invention is preferably made of acrylonitrile butadiene styrene or polyoxymethylene plastics.
- the components made of plastics can be produced by methods such as injection molding.
- each component of the device can be in any appropriate color.
- Figure 1 is a perspective view of an inhaler according to the inhaler described in the present invention.
- Figure 2 is an exploded view of the inhaler pertaining to the invention
- Figure 3 is a perspective view of the blister pack for use with the inhaler pertaining to the invention.
- Figure 4a is a perspective view of the mouthpiece cover of the inhaler pertaining to the invention.
- Figure 4b is an exploded view of the communication between the mouthpiece cover, the drive gear and the stabilizing resilient covers in the inhaler pertaining to the invention
- Figure 4c is a cross-sectional view of the communication between the mouthpiece cover, the drive gear and the stabilizing resilient covers in the inhaler pertaining to the invention
- Figure 4d is a cross-sectional view of the communication between the mouthpiece cover, the drive gear and the stabilizing resilient covers in the inhaler pertaining to the invention
- Figure 5 is a lateral view of the inhaler pertaining to the present invention.
- Figure 6 is a cross-sectional view of the engagement of the gears composing the gear mechanism with each other in the inhaler pertaining to the present invention
- Figure 7 is a cross-sectional view of the engagement of the gears composing the gear mechanism with each other in the inhaler pertaining to the present invention.
- Figure 8 is a cross-sectional view of the blister package delaminating in course of operation of the inhaler pertaining to the present invention.
- the inhaler (1) pertaining to the present invention comprises a gear mechanism situated in the housing (10) between the upper housing member (4a) and the lower housing member (4b) in order to enable the inhalation of the dry powder medicament carried in a blister package (15) as displayed in figures 1 and 2.
- Each component of the inhaler (1) is positioned at suitable spots on the housing (10) to guarantee their working properly and accurately.
- the inhaler (1) pertaining to the present invention shown in Figure 1 is ready for inhalation.
- the mouthpiece cover (2) is in the second position and the mouthpiece (14) is entirely exposed.
- the mouthpiece cover (2) has to be rotated by holding on the carved part (2a) on one end of the mouthpiece cover (2) in order to switch to the second position from the first position wherein the mouthpiece is completely covered.
- the mouthpiece (14) is completely exposed when the mouthpiece cover (2) is switched to the second position from the first position and the gear mechanism is triggered by the drive gear (12).
- the drive gear (12) precisely transmits the movement of the mouthpiece cover (2) to the indexing ratchet wheel (3).
- the indexing wheel (8) which engages with the indexing ratchet wheel (3) enables the blister package (15) shown in figure 3 to be indexed.
- the blister pockets (15a) composing the blister package are received in the recesses (8a) on the indexing wheel and the blister package (15) is indexed when the indexing wheel (8) rotates.
- shapes of the recesses (8a) on the indexing wheel (8) have been designed to match the shapes of the blister pockets (15) composing the blister package (15) for the blister package to be indexed properly.
- the blister package (15) shown in figure 3 is composed of the lid sheet (15b) which provides impermeability and the base sheet (15c) on which the blister pockets (15a) are spaced at equal intervals.
- Each blister pocket contains one dose of medicament in dry powder form comprising one or more active agents.
- the rotational movement that the mouthpiece cover (2) of the device executes while switching from the first position to the second is transmitted to the indexing ratchet wheel (3) via the drive gear (12) that the mouthpiece cover (2) engages with.
- arms (3 a) of the indexing ratchet wheel interlock with the protrusions inside the indexing wheel (8) and rotate the indexing wheel (8) unidirectionally. Therefore, the blister package (15) is indexed forward while the indexing wheel (8a) rotates as the blister pockets (15a) composing the blister package (15) are received in the recesses (8a) of the indexing wheel.
- the beak (16) in the housing (10) provides the blister package (15) to be peeled while the blister package (15) is indexed and provides one blister pocket (15a) to be opened in response to each actuation of the device (1).
- the winding wheel gear (6) which is another component of the gear mechanism, engages with the indexing wheel (8) as displayed in figure 2.
- the mechanism gear (5) that interlocks the winding wheel (13) from inside has arms (5a) to interlock with the interior teeth of the winding wheel gear (6).
- the indexing wheel (12) rotates the winding wheel gear (6)
- the winding wheel rotates unidirectionally owing to the arms of the mechanism gear (5 a) which interlocks with the interior teeth of the winding wheel gear (6) and the lid sheet (15b) which is peeled away while the blister package is indexed is tightly coiled on the resilient wings (13a) of the winding wheel.
- the base sheet (15c) of the blister package (15) where the blister pockets are spaced is accumulated in a separate part (18a) of the device.
- the mouthpiece cover (2) which engages with the gear mechanism and enables to actuate the device is displayed in figure 4a.
- One end (2a) of the mouthpiece cover is carved such that the mouthpiece cover can be rotated easily.
- the mouthpiece cover (2) is joined with the gear mechanism via the connection points (29, 30) on both sides of the device (1).
- the drive gear (12) is joined with the connection points (30; 29) via the side covers (31a, 31c) as it can clearly be seen in figures 4b, 4c and 4d displaying the communication between the mouthpiece (2), the drive gear (12), the side covers (31a, 31c) and the stabilizing resilient covers (32, 33).
- Both ends (12a; 12b) of the drive gear are carved such that the ends (31b; 3 Id) of the side covers can engage.
- One end (2a) of the mouthpiece cover (2) is carved such that the thumb can fix on it in order to move the mouthpiece cover easily and rapidly.
- the carved part of the mouthpiece cover can also be seen.
- stabilizing resilient cover (33; 32) on each connection point (29; 30) of the mouthpiece and on each side cover (31c; 31a), as displayed in figures 4b-4d.
- These pawls (32a, 33a) under the stabilizing resilient covers interlock with the mouthpiece cover (2) on both sides and hinder the mouthpiece cover's rotation.
- the resilient parts (32d, 33 d) of stabilizing resilient covers illustrated in figures 4b-4d are pressed on for raising the pawls (32a, 33a) and releasing the mouthpiece cover (2) in order to actuate the gear mechanism of the device to prepare one dose of dry powder medicament. Therefore, the gear mechanism of the device is actuated and one blister pocket (15a) is opened for one dose of the dry powder medicament to be ready for inhalation when the resilient parts (32d, 33 d) of the stabilizing resilient covers are pressed on and the mouthpiece cover (2) is switched from the first position to the second position simultaneously.
- the air which enters the device upon the patient's inhalation passes through the manifold (20), reaches the opened blister, entrains the dry powder medicament in the opened blister and takes it back to the manifold (20).
- One half (25a) of this channel is comprised in the upper housing member (4a) while the other half of it (25b) is comprised in the lower housing member.
- the channel is constituted as a whole when the upper (4a) and the lower (4b) housing members are joined together.
- the medicament in dry powder form entrained by the airflow which enters the device upon the inhalation of the patient is provided to be delivered to the patient by passing through the manifold (20), the channel (25a and 25b) interconnecting the manifold (20) and the mouthpiece, and the mouthpiece (14) respectively.
- the indexing wheel (8) which synchronizes with the indexing ratchet wheel (3) is engaged with the winding wheel gear (6) and the pinion gear (11) and the rotation of the indexing wheel (8) causes the pinion gear (11) and the winding wheel gear (6) to rotate.
- both the peeled lid sheet (15b) of the indexed blister package (15) is tightly coiled on the resilient wings (13a) of the winding wheel (13) engaging with the mechanism gear (5) which interlocks with the winding wheel gear (6) from inside and also the counter wheel (9) is provided to be moved by the pinion gear (11) and the base gear (7) as a result of the rotation of the indexing wheel (8).
- the lid sheet (15b) of the blister package (15) which is peeled away by the beak (16) and the base sheet (15c) are enclosed in separate compartments.
- the lid sheet (15b) that provides impermeability is indexed over the beak (16) and tightly coiled on the wings (13a) of the winding wheel.
- the base sheet (15c) of the blister package (15) where the blister pockets (15a) each of which carries one dose of the dry powder medicament are spaced is accumulated in the separated compartment (18a) of the housing (10).
- one dose of the dry powder medicament which is prepared for inhalation after one blister pocket (15a) is opened and the air entering the device through the air inlet (22) upon the inhalation of the patient provides to deliver one dose of the dry powder medicament to the patient by entraining it from the blister pocket (15a) to the mouthpiece (14).
- the medicament in dry powder form which is stored in blister cavities is manufactured according to the prior art.
- the particle sizes of the active agents comprised in the dry powder medicament are smaller than 20 ⁇ , preferably smaller than 10 ⁇ .
- the inhaler pertaining to the present invention has been designed so as to deliver the dry powder medicament used in monotherapy or combined therapy.
- monotherapy refers to inhalation treatments in which dry powder medicaments comprising a single active agent are used whereas the term “combined therapy” refers to inhalation treatments in which dry powder medicaments comprising more than one active agents are use used.
- the dry powder medicament delivered via the device pertaining to the present invention comprises at least one excipient in addition to the active agent or agents.
- excipients are generally chosen from a group comprising monosaccharides (glucose, arabinose, etc.), disaccharides (lactose, saccharose, maltose, etc.), oligo- and polysaccharides (dextran, etc.), polyalcohols (sorbite, mannite, xylite), salts (sodium chloride, calcium carbonate, etc.) or combinations thereof.
- the medicament in dry powder form comprises lactose as the excipient.
- the medicament in dry powder form comprises fine or coarse excipients particles preferably having various particle size ranges in order to deliver the required amount to the lungs.
- the active agent or the active agents comprised in the dry powder medicament which is stored in blister packages used in the device pertaining to the present invention can be selected from a group comprising cromolyns, anti-infectives, antihistamines, antiinflammatories, bronchodilators, steroids, leukotirene inhibitors, PDE IV inhibitors, antitussives, diuretics, anticholinergics, hormones, xanthines and pharmaceutically acceptable combinations thereof.
- the active agent comprised in the medicament in dry powder form delivered via the inhaler pertaining to the present invention is preferably selected from a group comprising tiotropium, oxitropium, flutropium, ipratropium, glicopironium, flunisolid, beclomethasone, budesonide, fluticasone, mometasone, ciclesonide, rofleponide, dexamethasone, montelukast, methylcyclopropane acetic acid, sodium cromoglicat, nedocromil sodium, Npropylene, teophylline, roflumilast, ariflo (cilomilast), salmeterol, salbutamol, formoterol, terbutaline, carmoterol, indacaterol, cetirizine, levocetirizine, efletirizine, fexofenadine and their racemates, free base, enantiomers or diastereomers and
- the device pertaining to the present invention is used in the administration of the medicament in dry powder form which is utilized in the treatment of many respiratory diseases, particularly in asthma, chronic obstructive pulmonary disorder (COPD) and allergic rhinitis.
- the respiratory diseases include, but not restricted to, allergic or non-allergic asthma at any phases, acute lung injury (ALI), acute respiratory distress syndrome (ARDS), exacerbation of airways hyperactivity, bronchiectasis, chronic obstructive pulmonary including emphysema and chronic bronchitis, airways or lung diseases (COPD, COAD or COLD), pneumoconiosis, aluminosis, anthracosis, asbestosis, chalicosis, ptilosis, siderosis, silicosis, tabacosis and byssinosis.
- the device pertaining to the invention can be used in prophylactic or symptomatic treatment.
- the medicament in dry powder form which is preferably used in the symptom
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Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TR2010/02877A TR201002877A2 (tr) | 2010-04-13 | 2010-04-13 | Blister ambalaj içeren inhalasyon cihazı |
| TR201003091 | 2010-04-20 | ||
| TR201004310 | 2010-05-28 | ||
| PCT/TR2011/000087 WO2011129787A1 (en) | 2010-04-13 | 2011-04-13 | Dry powder inhaler mouthpiece button |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP2558149A1 true EP2558149A1 (en) | 2013-02-20 |
Family
ID=44315112
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP11726524A Withdrawn EP2558149A1 (en) | 2010-04-13 | 2011-04-13 | Dry powder inhaler mouthpiece button |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP2558149A1 (enExample) |
| JP (1) | JP2013523377A (enExample) |
| EA (1) | EA201201393A1 (enExample) |
| IN (1) | IN2012DN04986A (enExample) |
| WO (1) | WO2011129787A1 (enExample) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9345848B2 (en) | 2009-10-20 | 2016-05-24 | Sima Patent Ve Lisanslama Hizmetleri Ltd. Sti. | Dry powder inhaler |
| USD733287S1 (en) | 2011-04-13 | 2015-06-30 | Mahmut Bilgic | Dry powder inhaler |
| GB201115154D0 (en) * | 2011-09-01 | 2011-10-19 | Clement Clarke Int Ltd | Spacer |
| USD744087S1 (en) | 2013-10-01 | 2015-11-24 | Mahmut Bilgic | Dry powder inhaler |
| US20190076607A1 (en) | 2017-09-13 | 2019-03-14 | Lupin Atlantis Holdings Sa | Inhaler and mesh for an inhaler |
| CN116173358B (zh) * | 2021-11-29 | 2025-03-28 | 康希诺生物股份公司 | 一种雾化杯及其在雾化吸入给药中的应用 |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1459426A (en) * | 1973-02-26 | 1976-12-22 | Allen & Hanburys Ltd | Inhalation devices |
| NZ250988A (en) * | 1990-06-14 | 1995-09-26 | Rhone Poulenc Rorer Ltd | Powder inhaler: swirling chamber with anti-static walls |
| FR2771296B1 (fr) * | 1997-11-25 | 2000-03-10 | Sofab | Embout nasal avec fermeture d'extremite |
| US6397838B1 (en) * | 1998-12-23 | 2002-06-04 | Battelle Pulmonary Therapeutics, Inc. | Pulmonary aerosol delivery device and method |
| US7360537B2 (en) * | 2003-04-16 | 2008-04-22 | Trudell Medical International | Antistatic medication delivery apparatus |
| DE102006009637A1 (de) * | 2005-10-28 | 2007-05-03 | Boehringer Ingelheim Pharma Gmbh & Co. Kg | Inhalator mit Mundstück mit mikrobiologischer Schutzfunktion |
-
2011
- 2011-04-13 WO PCT/TR2011/000087 patent/WO2011129787A1/en not_active Ceased
- 2011-04-13 EA EA201201393A patent/EA201201393A1/ru unknown
- 2011-04-13 EP EP11726524A patent/EP2558149A1/en not_active Withdrawn
- 2011-04-13 JP JP2013504862A patent/JP2013523377A/ja active Pending
-
2012
- 2012-06-06 IN IN4986DEN2012 patent/IN2012DN04986A/en unknown
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2011129787A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| IN2012DN04986A (enExample) | 2015-10-02 |
| JP2013523377A (ja) | 2013-06-17 |
| EA201201393A1 (ru) | 2013-05-30 |
| WO2011129787A1 (en) | 2011-10-20 |
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