US20060254584A1 - Powder Inhaler - Google Patents
Powder Inhaler Download PDFInfo
- Publication number
- US20060254584A1 US20060254584A1 US11/459,688 US45968806A US2006254584A1 US 20060254584 A1 US20060254584 A1 US 20060254584A1 US 45968806 A US45968806 A US 45968806A US 2006254584 A1 US2006254584 A1 US 2006254584A1
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- United States
- Prior art keywords
- plate
- mouthpiece
- actuating member
- cover
- functional
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- 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.)
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- 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
- A61M15/00—Inhalators
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K9/00—Medicinal preparations characterised by special physical form
- A61K9/0012—Galenical forms characterised by the site of application
- A61K9/007—Pulmonary tract; Aromatherapy
- A61K9/0073—Sprays or powders for inhalation; Aerolised or nebulised preparations generated by other means than thermal energy
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- 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
- A61M15/00—Inhalators
- A61M15/0001—Details of inhalators; Constructional features thereof
- A61M15/0021—Mouthpieces therefor
- A61M15/0025—Mouthpieces therefor with caps
- A61M15/0026—Hinged caps
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- 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
- A61M15/00—Inhalators
- A61M15/0028—Inhalators using prepacked dosages, one for each application, e.g. capsules to be perforated or broken-up
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- 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
- A61M15/00—Inhalators
- 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
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- 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
- A61M15/00—Inhalators
- 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
- A61M15/0033—Details of the piercing or cutting means
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- 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
- A61M15/00—Inhalators
- 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
- A61M15/0033—Details of the piercing or cutting means
- A61M15/0035—Piercing means
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- 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
- A61M15/00—Inhalators
- 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
- A61M15/0033—Details of the piercing or cutting means
- A61M15/0041—Details of the piercing or cutting means with movable piercing or cutting means
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- 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
- A61M2202/00—Special media to be introduced, removed or treated
- A61M2202/06—Solids
- A61M2202/064—Powder
Definitions
- the invention relates to an inhaler for inhaling powdered medicament from capsules which are inserted in a capsule holder arranged in the inhaler before use.
- an actuating member which can be set in motion from a resting position and thereby interacts with at least one pin adapted to be pushed into the capsule holder.
- the capsule is pierced and the medicament is released.
- An inhaler of this kind is described for example in EP 0 703 800 B1 or EP 0 911 047 A1.
- the inhaler known from the above-mentioned specifications comprises a dish-shaped lower part and an equally dish-shaped cover which fits it, the two parts being adapted to be flipped apart for use by means of a hinge provided at the edge region. Engaging between the lower part and the cover in the hinge are a mouthpiece which can also be flipped out and a plate located below it with a capsule holder provided underneath.
- the patient can place a capsule filled with medicament in the capsule holder, pivot the plate with the capsule holder and the mouthpiece back into the lower part and pierce the capsule by means of a spring-loaded actuating member projecting laterally from the lower part. Sucking on the mouthpiece then causes the medicament to be delivered to the respiratory tract of the patient being treated.
- the intention is to improve the known inhalers further in terms of their handling.
- FIG. 1 is an exploded view with multi-functional actuating member of an embodiment with main body and thrust projection mounted thereon;
- FIG. 1 a is an enlarged detail of the plate, capsule holder and multi-functional actuating member according to FIG. 1 ;
- FIG. 2 is an exploded view of an embodiment with operating windows in the lower part which are capable of being pressed in;
- FIG. 3 is an exploded view with multi-functional actuating member of a embodiment with main body and pivot member.
- actuating member is constructed as a multi-functional actuating member by means of which, in a first functional position, the closure element can be disengaged from the lower part in order to pivot the cover, and with which in a second functional position the mouthpiece engaging with the plate can be released from the plate such that the mouthpiece can be pivoted away from the lower part.
- the essential advantage of the invention is that the forces for releasing the cover and mouthpiece from mechanical engagement are not introduced directly through the cover or the mouthpiece, but through the multi-functional actuating member. This ensures safe and rapid opening of the cover and mouthpiece to make the inhaler ready for use. This is of major importance particularly at the start of an asthma attack. The actual opening movement of the cover can then be done by the patient, as before, by acting on the cover.
- gripping aids are meant, for example, depressions or grooves, which may have the disadvantage of attracting dirt.
- dispensing with these gripping aids in addition to improving the optical appearance, the hygiene conditions are also improved. This is particularly important in the area around the mouthpiece, as this component is placed in the oral cavity when the inhaler is used.
- spring elements may be disposed between the cover and lower part or mouthpiece and lower part, which are of suitable dimensions to allow the cover and/or mouthpiece to snap open.
- the multi-functional actuating member is displaceably mounted on the plate or capsule holder.
- the plate and/or the capsule holder thus form(s) an abutment for the multi-functional actuating member, which slides along the plate as it moves from the resting position into the desired functional position and is thereby guided by means of a guide rail, for example.
- the multi-functional actuating member is spring-loaded.
- the restoring force which is already present in the resting position ensures that after the inhaler has been used the multi-functional actuating member is returned to the resting position and is thus ready for the next operation of loading with a new capsule and the next inhalation process.
- the multi-functional actuating member comprises a main body and two parallel guide arms engaging thereon.
- the guide arms project into the lower part and by means of corresponding built-in parts, for example with guide sleeves arranged on the outside of the capsule holder, serve to guide the multi-functional actuating member during the movement from the resting position into the respective functional positions and back into the resting position.
- the guide arms may comprise end stops at their end remote from the main body, which abut on the guide sleeves in the resting position. In this way the multi-functional actuating member is put under tension.
- the main body comprises an upper and a lateral grooved surface.
- these surfaces do not abut on the cover and especially not on the mouthpiece, but only on the main body of the multi-functional actuating member outside the inhaler and therefore do not come near the patient's mouth.
- the grooved surfaces may be smaller in area while still guaranteeing safe and rapid use of the inhaler.
- the upper grooved surface in the resting position has a recess in its region close to the cover for accommodating the closure element of the cover.
- the side wall directed towards the lateral grooved surface may be inclined so that as the main body is pushed in, this side wall forms a sliding surface for the closure element and in this way the closure element together with the cover is lifted out of the latched position.
- the multi-functional actuating member comprises a thrust projection acting on the main body and a retaining lug mounted on the mouthpiece and engaging behind the plate, the thrust projection being aligned so that as it reaches the second functional position its front edge makes contact with the retaining lug.
- the thrust projection pushes the preferably flexible retaining lug further back until the latter slides out of the opening in the fixed plate and releases the mouthpiece.
- the multi-functional actuating member comprises a pivot member pivotably mounted on a main body, on which is provided an impact cam projecting into the inhaler, and a retaining arm co-operating with the impact cam and mounted on the lower part, which in the closed position engages behind the mouthpiece through the plate, the impact cam projecting laterally past the retaining arm in the resting position.
- the impact cam passes through an opening in the main body.
- the patient swivels the pivot member and hence the impact cam as well, which, travelling along a path in the shape of an arc of a circle on the inside of the inhaler, comes up against the retaining arm connected to the mouthpiece and as more pressure is applied bends this arm.
- the retaining arm which is preferably provided with a retaining hook slides out of the mouthpiece, thereby releasing the latter.
- the impact cam is eccentrically mounted on the pivot member. This arrangement allows force to be transmitted as directly as possible to the retaining arm, depending on the mounting of the latter.
- At least one operating window with functional elements formed thereon may be provided in the lower part, the minimum of one operating window being adapted to be pressed into the lower part in guided and spring-loaded manner and by means of the functional elements releases the mouthpiece engaging with the plate from said plate.
- the assembly around the actuating member takes over the releasing of the cover, while the push-button in the lower part constructed as an operating window together with other components initiates the release of the mouthpiece by the patient.
- the operating windows enable the patient to check whether a capsule containing the medicament has been placed in the capsule holder.
- operating windows are arranged opposite in the lower part. If they are joined together in the manner of a clasp, a restoring force inherent in the material is produced, by an appropriate choice of material, so that no other spring elements are needed.
- the functional elements comprise hooks and retaining elements formed to complement them, the hooks being integrally formed with the minimum of one window and optionally extending as crosspieces in the direction of the mouthpiece.
- the retaining elements for example eyelets or retaining collars, in which the hooks can engage and thereby latch the mouthpiece.
- the hook When the minimum of one operating window is pressed in, the hook also yields towards the interior of the lower part, so that the hook slides out of the retaining element and the mouthpiece can be flipped out.
- the plate latched to the lower part can be detached from the lower part so that the plate can be pivoted away from the lower part.
- the engagement between plate and lower part can be achieved using the retaining flaps mentioned earlier.
- the inhaler it is also possible to construct the inhaler according to all the embodiments so that the actuating member having the minimum of one pin which can penetrate into the capsule holder is attached to the plate such that it can be released from the lower part and swivelled away together with the plate latched to the lower part.
- FIG. 1 shows the inhaler in an exploded view.
- the essential assemblies are the lower part 1 which accommodates the plate 2 and is covered by the latter, the mouthpiece 4 which can be latched to the lower part 1 via the retaining lug 22 and the cover 5 which is formed to complement the lower part 1 .
- the closure element 6 engages on the plate 2 and is held there by frictional engagement. It is also possible to obtain interlocking engagement by the provision of bead-like structures.
- the main body 10 of the multi-functional actuating member 8 a comprises a recess 15 , as can be seen most clearly from the enlarged view in FIG. 1 a.
- the recess 15 is provided with an inclined side wall 16 and is located in the area 14 of the upper grooved surface 12 nearest the cover.
- the multi-functional actuating member 8 a is also provided with a lateral grooved surface 13 .
- the lower part 1 is cup-shaped and accommodates the whole of the capsule holder 3 arranged on the underside of the plate 2 .
- the mouthpiece 4 in order to insert a capsule filled with medicament (not shown) the mouthpiece 4 must also be flipped out of the way. In the embodiment according to FIG. 1 this is done by pressing the multi-functional actuating member 8 a further into a second functional position.
- a thrust projection 21 mounted on the main body 10 and aligned in the direction of movement of the main body 10 makes contact, by means of its front edge 23 ( FIG. 1 a ) underneath the plate 2 , with a retaining lug 22 projecting through the plate 2 , fixedly mounted on the mouthpiece 4 .
- the plate 2 comprises a retaining lug opening 37 in the region where the retaining lug 22 projects through.
- the capsule In this opened position of the cover 5 and mouthpiece 4 the capsule can be placed in the capsule holder 3 .
- parallel pins 9 are mounted on the main body, moving continuously as the main body 10 is pushed in towards the capsule (not shown) and perforating it. The perforation process can be observed through an inspection window 24 a. Then the mouthpiece 4 is swivelled back again.
- tubular pin passages 9 a which are aligned axially in accordance with the direction of movement of the pins 9 .
- these ensure that the pins are correctly aimed at the capsule (not shown) and on the other hand they provide additional guidance of the multi-functional actuating member 8 a.
- the essential guiding is done by two guide arms 11 a, 11 b arranged laterally on the main body 10 .
- the guide arms 11 a, 11 b also have the task of holding the multi-functional actuating member 8 a under spring bias.
- the guide arms 11 a, 11 b are provided at their end remote from the main body 19 with end stops 20 which abut on the guide sleeves 18 a, 18 b in the resting position of the multi-functional actuating member 8 a.
- the guide sleeves 18 a, 18 b are located on the outside of the capsule holder 3 .
- a helical spring 3 8 which extends parallel to the pins 9 in its axial direction, the helical spring 3 8 being matched to the length of the guide arms 11 a, 11 b such that the multi-functional actuating member 8 a is under tension even in the resting position.
- the individual assemblies made up of the lower part 1 , plate 2 , mouthpiece 4 and cover 5 are connected by means of hinge recesses 7 a, 7 b, 7 c 7 d and a hinge bolt 7 e.
- FIG. 2 shows a view similar to FIG. 1 , wherein the opening of the cover 5 occurs as the first functional position is reached by actuating the main body 10 of the actuating member 8 , similar to the embodiment shown in FIG. 1 .
- the cover 5 Once the cover 5 has been opened it is necessary to flip the mouthpiece 4 out of the way as well so that a capsule filled with medicament (not shown) can be placed in the capsule holder 3 .
- the patient presses the operating window 24 b provided on both sides in the lower part 1 .
- the functional elements 25 which are formed in FIG. 2 as upright posts integral with the window, bend inwards into the cavity of the lower part 1 .
- hooks 26 On the ends of the functional elements there are hooks 26 which project outwards beyond the lower part 1 and when the plate 2 is closed make it possible to engage in the retaining elements 27 located on the inside of the mouthpiece 4 when said mouthpiece 4 is located on the plate 1 .
- the mouthpiece 4 which has to be flipped out of the way, when a compressive force is applied to the operating window 24 b the hooks 26 slide out of the retaining elements 27 , which consist of a retaining collar 28 , as in the case shown.
- the mouthpiece 4 When the capsule (not shown) has been placed in the capsule holder 3 the mouthpiece 4 is swivelled back until it latches with the hooks 26 protruding through the hook passage 36 . Then the capsule (not shown) can be pierced by pressing the main body 10 . For this, two parallel pins 9 secured to the main body 10 project towards the capsule holder 3 . After use the cover 5 is closed again. Meanwhile, the closure element 6 latches on the plate 2 .
- FIG. 3 shows another embodiment in which the mouthpiece 4 is flipped out of the way in a different way.
- the multi-functional actuating member 8 a is made in two pieces.
- the pivot member 29 is fixed centrally on the main part 10 on a peg.
- Eccentrically mounted above the mounting bore 39 is the impact cam 30 which projects into the interior of the lower part 1 when the inhaler is assembled and when rotated in the direction of the arrow in FIG. 3 comes into contact with the retaining arm 31 pointing vertically upwards.
- the upper end 32 of the retaining arm 31 in turn is deflected and the retaining hook 33 provided thereon slides out of the retaining element 27 located in the mouthpiece 4 , which is also in the form of a retaining collar 28 .
- the plate 2 has a retaining arm passage 35 of sufficiently large dimensions.
Abstract
An inhaler for inhaling powdered medicament from capsules is described. Once the capsule has been placed in the capsule holder (3) the patient can press an actuating member (8), which interacts with at least one pin (9) adapted to be pushed into the capsule holder (3), causing the medicament to be released. In a preferred embodiment, the actuating member (8) is constructed as a multi-functional actuating member (8a) wherein, in a first functional position, the closure element (6) can be disengaged from the lower part (1) in order to pivot the cover (5), and wherein, in a second functional position, the mouthpiece (4) engaging with the plate (2) can be released from the plate (2) in such a way that the mouthpiece (4) can be pivoted away from the lower part (1).
Description
- Benefit of U.S. Provisional Application Ser. No. 60/532,226, filed on Dec. 23, 2003, is hereby claimed, and which application is incorporated herein in its entirety.
- The invention relates to an inhaler for inhaling powdered medicament from capsules which are inserted in a capsule holder arranged in the inhaler before use. After the capsule has been placed in the capsule holder the patient can press an actuating member, which can be set in motion from a resting position and thereby interacts with at least one pin adapted to be pushed into the capsule holder. Using the minimum of one pin the capsule is pierced and the medicament is released.
- An inhaler of this kind is described for example in EP 0 703 800 B1 or EP 0 911 047 A1. The inhaler known from the above-mentioned specifications comprises a dish-shaped lower part and an equally dish-shaped cover which fits it, the two parts being adapted to be flipped apart for use by means of a hinge provided at the edge region. Engaging between the lower part and the cover in the hinge are a mouthpiece which can also be flipped out and a plate located below it with a capsule holder provided underneath. After the individual parts have been opened out the patient can place a capsule filled with medicament in the capsule holder, pivot the plate with the capsule holder and the mouthpiece back into the lower part and pierce the capsule by means of a spring-loaded actuating member projecting laterally from the lower part. Sucking on the mouthpiece then causes the medicament to be delivered to the respiratory tract of the patient being treated.
- The intention is to improve the known inhalers further in terms of their handling.
-
FIG. 1 : is an exploded view with multi-functional actuating member of an embodiment with main body and thrust projection mounted thereon; -
FIG. 1 a: is an enlarged detail of the plate, capsule holder and multi-functional actuating member according toFIG. 1 ; -
FIG. 2 : is an exploded view of an embodiment with operating windows in the lower part which are capable of being pressed in; -
FIG. 3 : is an exploded view with multi-functional actuating member of a embodiment with main body and pivot member. - This aim is achieved according to the invention with an inhaler according to a first embodiment wherein the actuating member is constructed as a multi-functional actuating member by means of which, in a first functional position, the closure element can be disengaged from the lower part in order to pivot the cover, and with which in a second functional position the mouthpiece engaging with the plate can be released from the plate such that the mouthpiece can be pivoted away from the lower part.
- The essential advantage of the invention is that the forces for releasing the cover and mouthpiece from mechanical engagement are not introduced directly through the cover or the mouthpiece, but through the multi-functional actuating member. This ensures safe and rapid opening of the cover and mouthpiece to make the inhaler ready for use. This is of major importance particularly at the start of an asthma attack. The actual opening movement of the cover can then be done by the patient, as before, by acting on the cover.
- As the forces required for releasing the cover and mouthpiece components are significantly lower, there is no need to provide gripping aids. By gripping aids are meant, for example, depressions or grooves, which may have the disadvantage of attracting dirt. By dispensing with these gripping aids, in addition to improving the optical appearance, the hygiene conditions are also improved. This is particularly important in the area around the mouthpiece, as this component is placed in the oral cavity when the inhaler is used.
- In a preferred embodiment, to assist the opening movement, spring elements may be disposed between the cover and lower part or mouthpiece and lower part, which are of suitable dimensions to allow the cover and/or mouthpiece to snap open.
- Preferably the multi-functional actuating member is displaceably mounted on the plate or capsule holder. The plate and/or the capsule holder thus form(s) an abutment for the multi-functional actuating member, which slides along the plate as it moves from the resting position into the desired functional position and is thereby guided by means of a guide rail, for example.
- In a favourable embodiment the multi-functional actuating member is spring-loaded. The restoring force which is already present in the resting position ensures that after the inhaler has been used the multi-functional actuating member is returned to the resting position and is thus ready for the next operation of loading with a new capsule and the next inhalation process.
- Advantageously the multi-functional actuating member comprises a main body and two parallel guide arms engaging thereon. The guide arms project into the lower part and by means of corresponding built-in parts, for example with guide sleeves arranged on the outside of the capsule holder, serve to guide the multi-functional actuating member during the movement from the resting position into the respective functional positions and back into the resting position.
- The guide arms may comprise end stops at their end remote from the main body, which abut on the guide sleeves in the resting position. In this way the multi-functional actuating member is put under tension.
- In a preferred embodiment the main body comprises an upper and a lateral grooved surface. However, unlike in the prior art, these surfaces do not abut on the cover and especially not on the mouthpiece, but only on the main body of the multi-functional actuating member outside the inhaler and therefore do not come near the patient's mouth. In addition, the grooved surfaces may be smaller in area while still guaranteeing safe and rapid use of the inhaler.
- Advantageously the upper grooved surface in the resting position has a recess in its region close to the cover for accommodating the closure element of the cover. Within the recess at least the side wall directed towards the lateral grooved surface may be inclined so that as the main body is pushed in, this side wall forms a sliding surface for the closure element and in this way the closure element together with the cover is lifted out of the latched position.
- In the first particularly favourable embodiment described hitherto for releasing the mouthpiece the multi-functional actuating member comprises a thrust projection acting on the main body and a retaining lug mounted on the mouthpiece and engaging behind the plate, the thrust projection being aligned so that as it reaches the second functional position its front edge makes contact with the retaining lug. As the main body is pushed further forward the thrust projection pushes the preferably flexible retaining lug further back until the latter slides out of the opening in the fixed plate and releases the mouthpiece.
- In a second preferred embodiment for releasing the mouthpiece the multi-functional actuating member comprises a pivot member pivotably mounted on a main body, on which is provided an impact cam projecting into the inhaler, and a retaining arm co-operating with the impact cam and mounted on the lower part, which in the closed position engages behind the mouthpiece through the plate, the impact cam projecting laterally past the retaining arm in the resting position. Preferably, the impact cam passes through an opening in the main body. In order to open the mouthpiece the patient swivels the pivot member and hence the impact cam as well, which, travelling along a path in the shape of an arc of a circle on the inside of the inhaler, comes up against the retaining arm connected to the mouthpiece and as more pressure is applied bends this arm. As a result the retaining arm which is preferably provided with a retaining hook slides out of the mouthpiece, thereby releasing the latter.
- In an advantageous embodiment the impact cam is eccentrically mounted on the pivot member. This arrangement allows force to be transmitted as directly as possible to the retaining arm, depending on the mounting of the latter.
- Alternatively to the embodiments described above for releasing the mouthpiece, at least one operating window with functional elements formed thereon may be provided in the lower part, the minimum of one operating window being adapted to be pressed into the lower part in guided and spring-loaded manner and by means of the functional elements releases the mouthpiece engaging with the plate from said plate. In this embodiment the assembly around the actuating member takes over the releasing of the cover, while the push-button in the lower part constructed as an operating window together with other components initiates the release of the mouthpiece by the patient. The operating windows enable the patient to check whether a capsule containing the medicament has been placed in the capsule holder.
- Preferably, operating windows are arranged opposite in the lower part. If they are joined together in the manner of a clasp, a restoring force inherent in the material is produced, by an appropriate choice of material, so that no other spring elements are needed.
- Advantageously the functional elements comprise hooks and retaining elements formed to complement them, the hooks being integrally formed with the minimum of one window and optionally extending as crosspieces in the direction of the mouthpiece. In the mouthpiece are found, in turn, the retaining elements, for example eyelets or retaining collars, in which the hooks can engage and thereby latch the mouthpiece. When the minimum of one operating window is pressed in, the hook also yields towards the interior of the lower part, so that the hook slides out of the retaining element and the mouthpiece can be flipped out.
- Advantageously the plate latched to the lower part can be detached from the lower part so that the plate can be pivoted away from the lower part. The engagement between plate and lower part can be achieved using the retaining flaps mentioned earlier.
- It is also possible to construct the inhaler according to all the embodiments so that the actuating member having the minimum of one pin which can penetrate into the capsule holder is attached to the plate such that it can be released from the lower part and swivelled away together with the plate latched to the lower part.
- To assist in the understanding of the invention it will now be described more fully by reference to the three Figures provided herein.
-
FIG. 1 shows the inhaler in an exploded view. The essential assemblies are the lower part 1 which accommodates theplate 2 and is covered by the latter, the mouthpiece 4 which can be latched to the lower part 1 via theretaining lug 22 and thecover 5 which is formed to complement the lower part 1. - In the closed position of the inhaler the
closure element 6 engages on theplate 2 and is held there by frictional engagement. It is also possible to obtain interlocking engagement by the provision of bead-like structures. For theclosure element 6 to engage on theplate 2, themain body 10 of themulti-functional actuating member 8 a comprises arecess 15, as can be seen most clearly from the enlarged view inFIG. 1 a. Therecess 15 is provided with an inclined side wall 16 and is located in the area 14 of the uppergrooved surface 12 nearest the cover. For particularly reliable operation themulti-functional actuating member 8 a is also provided with a lateralgrooved surface 13. - To open the
cover 5 first of all themulti-functional actuating member 8 a is pushed forward into a first functional position. Theclosure element 6 then makes contact with the inclined side wall 16, which acts as a sliding surface 17 as themain body 10 continues to advance and ensures that thecover 5 is released. - The lower part 1 is cup-shaped and accommodates the whole of the
capsule holder 3 arranged on the underside of theplate 2. However, in order to insert a capsule filled with medicament (not shown) the mouthpiece 4 must also be flipped out of the way. In the embodiment according toFIG. 1 this is done by pressing themulti-functional actuating member 8 a further into a second functional position. Athrust projection 21 mounted on themain body 10 and aligned in the direction of movement of themain body 10 makes contact, by means of its front edge 23 (FIG. 1 a) underneath theplate 2, with a retaininglug 22 projecting through theplate 2, fixedly mounted on the mouthpiece 4. Theplate 2 comprises a retaining lug opening 37 in the region where the retaininglug 22 projects through. - As a result of the advancing movement of the
thrust projection 21 the retaininglug 22 bends and escapes through the retaininglug opening 37, thereby pivoting the mouthpiece 4 away. This pivoting movement is assisted by anelastic spring 34. - In this opened position of the
cover 5 and mouthpiece 4 the capsule can be placed in thecapsule holder 3. For releasing the active substance two perpendicularly offset,parallel pins 9 are mounted on the main body, moving continuously as themain body 10 is pushed in towards the capsule (not shown) and perforating it. The perforation process can be observed through aninspection window 24 a. Then the mouthpiece 4 is swivelled back again. - In the
capsule holder 3 there are tubular pin passages 9 a which are aligned axially in accordance with the direction of movement of thepins 9. On the one hand these ensure that the pins are correctly aimed at the capsule (not shown) and on the other hand they provide additional guidance of themulti-functional actuating member 8 a. However, the essential guiding is done by twoguide arms 11 a, 11 b arranged laterally on themain body 10. Theguide arms 11 a, 11 b also have the task of holding themulti-functional actuating member 8 a under spring bias. For this purpose theguide arms 11 a, 11 b are provided at their end remote from themain body 19 with end stops 20 which abut on the guide sleeves 18 a, 18 b in the resting position of themulti-functional actuating member 8 a. The guide sleeves 18 a, 18 b are located on the outside of thecapsule holder 3. Between thepins 9 is arranged ahelical spring 3 8 which extends parallel to thepins 9 in its axial direction, thehelical spring 3 8 being matched to the length of theguide arms 11 a, 11 b such that themulti-functional actuating member 8 a is under tension even in the resting position. - The individual assemblies made up of the lower part 1,
plate 2, mouthpiece 4 andcover 5 are connected by means ofhinge recesses 7 a, 7 b, 7c 7 d and ahinge bolt 7 e. -
FIG. 2 shows a view similar toFIG. 1 , wherein the opening of thecover 5 occurs as the first functional position is reached by actuating themain body 10 of the actuatingmember 8, similar to the embodiment shown inFIG. 1 . - Once the
cover 5 has been opened it is necessary to flip the mouthpiece 4 out of the way as well so that a capsule filled with medicament (not shown) can be placed in thecapsule holder 3. For this purpose, the patient presses the operating window 24 b provided on both sides in the lower part 1. As a result of the pressing action on the operating window 24 b thefunctional elements 25, which are formed inFIG. 2 as upright posts integral with the window, bend inwards into the cavity of the lower part 1. On the ends of the functional elements there arehooks 26 which project outwards beyond the lower part 1 and when theplate 2 is closed make it possible to engage in the retaining elements 27 located on the inside of the mouthpiece 4 when said mouthpiece 4 is located on the plate 1. As for the mouthpiece 4 which has to be flipped out of the way, when a compressive force is applied to the operating window 24 b thehooks 26 slide out of the retaining elements 27, which consist of a retaining collar 28, as in the case shown. - When the capsule (not shown) has been placed in the
capsule holder 3 the mouthpiece 4 is swivelled back until it latches with thehooks 26 protruding through thehook passage 36. Then the capsule (not shown) can be pierced by pressing themain body 10. For this, twoparallel pins 9 secured to themain body 10 project towards thecapsule holder 3. After use thecover 5 is closed again. Meanwhile, theclosure element 6 latches on theplate 2. -
FIG. 3 shows another embodiment in which the mouthpiece 4 is flipped out of the way in a different way. For this purpose themulti-functional actuating member 8 a is made in two pieces. In addition to themain body 10 which is movably mounted for opening thecover 5, on the exterior thereof, rotatable with respect to themain part 10, is thepivot member 29. Thepivot member 29 is fixed centrally on themain part 10 on a peg. Eccentrically mounted above the mounting bore 39 is theimpact cam 30 which projects into the interior of the lower part 1 when the inhaler is assembled and when rotated in the direction of the arrow inFIG. 3 comes into contact with the retainingarm 31 pointing vertically upwards. In this way, the upper end 32 of the retainingarm 31 in turn is deflected and the retaining hook 33 provided thereon slides out of the retaining element 27 located in the mouthpiece 4, which is also in the form of a retaining collar 28. To allow the retaining hook 33 to slide unobstructed out of the retaining collar 28, theplate 2 has a retainingarm passage 35 of sufficiently large dimensions. - To close the mouthpiece 4 it is pivoted back into the original position. Thanks to the pointed shape of the retaining hook 33 in the direction of the
cover 5 it slides through the retainingarm passage 35 onto the inside of the mouthpiece 4 and there it engages behind the retaining collars 28, as a result of the restoring forces present in the retaining hook 33. - List of Reference Numerals
-
- 1 lower part
- 2 plate
- 3 capsule holder
- 4 mouthpiece
- 5 cover
- 6 closure element
- 7 a, 7 b, 7 c, 7 d hinge recesses
- 7 e hinge bolt
- 8 actuating member
- 8 a multi-functional actuating member
- 9 pin
- 9 a pin passages
- 10 main body
- 11 a, 11 b guide arm
- 12 upper grooved surface
- 13 lateral grooved surface
- 14 area nearest the cover
- 15 recess
- 16 side wall of the recess
- 17 sliding surface
- 18 a, 18 b guide sleeve
- 19 end of the guide arm remote from the main body
- 20 end stops
- 21 thrust projection
- 22 retaining lug
- 23 front edge thrust projection
- 24 a inspection window
- 24 b operating window
- 25 functional elements
- 26 hook
- 27 retaining elements
- 28 retaining collar
- 29 pivot member
- 30 impact cam
- 31 retaining arm
- 32 upper end of retaining arm
- 33 retaining hook
- 34 elastic spring (housing)
- 35 retaining arm passage
- 36 hook passage
- 37 retaining lug opening
- 38 helical spring
- 39 mounting bore
Claims (9)
1-20. (canceled)
21. An inhaler for inhaling powdered medicament from capsules, comprising
a lower part (1)
a plate (2) capable of latching to the lower part (1), with which the lower part (1) can be closed, and a capsule holder (3) for receiving the capsules which can be countersunk in the lower part (1),
a mouthpiece (4) capable of latching to the plate (2),
a cover (5) which covers the mouthpiece (4) in a closed position and latches it by means of a closure element (6), the lower part (1), the plate (2), the mouthpiece (4) and the cover (5) being jointed to one another by hinge recesses (7 a, 7 b, 7 c, 7 d) and a hinge bolt (7 e); and
an actuating member (8) which can be set in motion from a resting position and thereby co-operates with at least one pin (9) that can be pushed into the capsule holder (3);
characterized in that in the lower part (1) there is at least one operating window (24 b) with functional elements (25) formed thereon, the minimum of one operating window (24 b) being capable of being pressed into the lower part (1) in guided and spring-loaded manner and releasing the mouthpiece (4) latched to the plate (2) from said plate (2) by means of the functional elements (25) (FIG. 2 ).
22. The inhaler according to claim 21 , characterized in that operating windows (24 b) are provided opposite one another in the lower part (1).
23. The inhaler according to claim 21 , characterized in that the functional elements (25) comprise hooks (26) and retaining elements (27) constructed to complement them.
24. The inhaler according to claim 21 , characterized in that the hooks (26) are integrally formed with the minimum of one operating window (24 b).
25. The inhaler according to claim 23 , characterized in that the hooks (26) extend in the manner of crosspieces in the direction of the mouthpiece (4).
26. (canceled)
27. The inhaler according to claim 21 , characterized in that the plate (2) latched to the lower part (1) can be released from the lower part (1) such that the plate (2) can be pivoted away from the lower part (1).
28. The inhaler according to claim 21 , characterized in that the actuating member (8) is attached to the plate (2) such that it can be released from the lower part (1) and pivoted away together with the plate (2) latched to the lower part (1).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/459,688 US20060254584A1 (en) | 2003-11-08 | 2006-07-25 | Powder Inhaler |
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10352277A DE10352277A1 (en) | 2003-11-08 | 2003-11-08 | powder inhaler |
DE10352277 | 2003-11-08 | ||
US53222603P | 2003-12-23 | 2003-12-23 | |
US10/979,943 US7252087B2 (en) | 2003-11-08 | 2004-11-02 | Powder inhaler |
US11/459,688 US20060254584A1 (en) | 2003-11-08 | 2006-07-25 | Powder Inhaler |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/979,943 Continuation US7252087B2 (en) | 2003-11-08 | 2004-11-02 | Powder inhaler |
Publications (1)
Publication Number | Publication Date |
---|---|
US20060254584A1 true US20060254584A1 (en) | 2006-11-16 |
Family
ID=34530177
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/979,943 Active US7252087B2 (en) | 2003-11-08 | 2004-11-02 | Powder inhaler |
US11/459,688 Abandoned US20060254584A1 (en) | 2003-11-08 | 2006-07-25 | Powder Inhaler |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/979,943 Active US7252087B2 (en) | 2003-11-08 | 2004-11-02 | Powder inhaler |
Country Status (25)
Country | Link |
---|---|
US (2) | US7252087B2 (en) |
EP (2) | EP1691870B1 (en) |
JP (1) | JP4722856B2 (en) |
KR (1) | KR101181249B1 (en) |
CN (1) | CN100493642C (en) |
AT (1) | ATE543528T1 (en) |
AU (1) | AU2004287186B2 (en) |
CA (1) | CA2544745C (en) |
CO (1) | CO5670361A2 (en) |
DE (1) | DE10352277A1 (en) |
DK (1) | DK2407197T3 (en) |
EA (1) | EA008257B1 (en) |
EC (1) | ECSP066550A (en) |
EG (1) | EG24327A (en) |
ES (1) | ES2599831T3 (en) |
HK (1) | HK1099718A1 (en) |
HU (1) | HUE032103T2 (en) |
IL (2) | IL175017A (en) |
NO (2) | NO334855B1 (en) |
NZ (1) | NZ547702A (en) |
PL (1) | PL2407197T3 (en) |
SG (1) | SG137860A1 (en) |
UA (1) | UA91331C2 (en) |
WO (1) | WO2005044353A1 (en) |
ZA (1) | ZA200602784B (en) |
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US20090165791A1 (en) * | 2006-04-15 | 2009-07-02 | Oliver Wendland | Inhaler |
US20100275917A1 (en) * | 2007-07-20 | 2010-11-04 | Boehringer Ingelheim International Gmbh | Powder inhaler |
US20110232637A1 (en) * | 2009-10-02 | 2011-09-29 | Boehringer Ingelheim International Gmbh | Powder inhaler |
USD849927S1 (en) * | 2017-08-17 | 2019-05-28 | Alfred Von Schuckmann | Inhaler |
USD1010101S1 (en) | 2020-09-18 | 2024-01-02 | Trudell Medical International | Holding chamber |
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US20090165791A1 (en) * | 2006-04-15 | 2009-07-02 | Oliver Wendland | Inhaler |
US8196578B2 (en) | 2006-04-15 | 2012-06-12 | Boehringer Ingelheim International Gmbh | Inhaler |
US20100275917A1 (en) * | 2007-07-20 | 2010-11-04 | Boehringer Ingelheim International Gmbh | Powder inhaler |
US8539947B2 (en) | 2007-07-20 | 2013-09-24 | Boehringer Ingelheim International Gmbh | Powder inhaler |
US20110232637A1 (en) * | 2009-10-02 | 2011-09-29 | Boehringer Ingelheim International Gmbh | Powder inhaler |
US8746244B2 (en) * | 2009-10-02 | 2014-06-10 | Boehringer Ingelheim International Gmbh | Powder inhaler |
USD849927S1 (en) * | 2017-08-17 | 2019-05-28 | Alfred Von Schuckmann | Inhaler |
USD1010101S1 (en) | 2020-09-18 | 2024-01-02 | Trudell Medical International | Holding chamber |
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