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WO2017093367A1 - Inhalateur pour matières pulvérulentes et compteur de doses pour inhalateur - Google Patents

Inhalateur pour matières pulvérulentes et compteur de doses pour inhalateur Download PDF

Info

Publication number
WO2017093367A1
WO2017093367A1 PCT/EP2016/079363 EP2016079363W WO2017093367A1 WO 2017093367 A1 WO2017093367 A1 WO 2017093367A1 EP 2016079363 W EP2016079363 W EP 2016079363W WO 2017093367 A1 WO2017093367 A1 WO 2017093367A1
Authority
WO
WIPO (PCT)
Prior art keywords
inhaler
counter
pot
transmission part
worm wheel
Prior art date
Application number
PCT/EP2016/079363
Other languages
German (de)
English (en)
Inventor
Alfred Von Schuckmann
Original Assignee
Alfred Von Schuckmann
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Alfred Von Schuckmann filed Critical Alfred Von Schuckmann
Publication of WO2017093367A1 publication Critical patent/WO2017093367A1/fr

Links

Classifications

    • 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
    • A61M15/0065—Inhalators with dosage or measuring devices
    • A61M15/0068—Indicating or counting the number of dispensed doses or of remaining doses
    • A61M15/007—Mechanical counters
    • A61M15/0071—Mechanical counters having a display or indicator
    • A61M15/0075—Mechanical counters having a display or indicator on a disc
    • 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
    • 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
    • A61M15/0065—Inhalators with dosage or measuring devices
    • 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 initially relates to an inhaler for pulverf örmige substances, with a reservoir and a relative to the reservoir movable Dosierhuntteil, wherein a counter is provided, the one
  • the invention relates to a counter for an inhaler.
  • Inhalers of the type in question are known. For example, reference is made to DE 10 2007 056 263 A1 (US 2010/0300441 Al). From this, it is known to shift a separated amount of substance out of the storage space into an initially closed emptying ready position by means of a rod-like metering chamber part. For this purpose, the Dosierhuntteil is movable relative to the storage space. As a result of inhalation, a piston moves and opens the metering chamber of the metering chamber part, which metering chamber is next to an air flow path for clearing the divided substance from the metering chamber and for transfer into the air stream to be sucked.
  • counters for inhalers are known. These may have a worm wheel and an actuating finger.
  • the actuating finger leads to a given inhaler handling, which can be traced back to an inhalation to be carried out or already performed
  • Rotary displacement of the worm wheel which acts, for example, on a scale ring or a dial.
  • Stepping devices known.
  • such a counter is known, for example, from WO 2007/104698 A1 (US 2008/005149 A1).
  • the invention is concerned with the task of designing an inhaler with a counter and a counter for an inhaler low.
  • a possible solution to the problem is given according to a further inventive concept in that it has a worm wheel and an actuating finger, further a first outwardly pot-shaped opening part and a second cup-shaped part, with his
  • Opening directed to the bottom of the first part is inserted into the first part, wherein a transmission part passing through the bottom of the first part has the actuating finger designed to act on the worm wheel.
  • the displacement of the Dosierhunters in particular a linear displacement of the metering chamber along an inhaler longitudinal axis, is transmitted to the transmission part and via this on the worm wheel acting on the actuating finger. It is according to the displacement of Dosierhunters in the emptying standby position or from this out into the loading position, in which the dosing of the Dosierhuntteils immersed in the substance having the reservoir, detected.
  • the transmission part can not only serve to detect the displacement of the metering chamber, but also, as well as preferred, to bring about such Dosierhuntteil- shift.
  • the transmission part can act accordingly on the Dosierhuntteil, for shifting the Dosierhuntteils from the loading position in the emptying readiness tsposition and / or from the emptying standby position in the loading position.
  • the transmission part of the Dosierhuntteil is detachable, for example. To enable the emptying of the metering chamber by inhalation.
  • the release of the transmission part of the Dosierhuntteil, as well as preferably the reintroduction of the action position, preferably without tools can be brought about, more preferably in the course of the usual handling of the inhaler.
  • the transmission part can be completely removed from the part of the inhaler having the metering chamber part.
  • the counter can be designed in the manner of a stepping mechanism.
  • the counting wheel preferably has a worm wheel, which cooperates with a scale ring or a dial.
  • the worm wheel is rotatably displaced due to direct or indirect action of an actuating finger on the worm wheel, which actuating finger is arranged on a transmission part.
  • the actuating finger is motion-coupled with the transmission part, so that a displacement of the transmission part leads to an action on the worm wheel and here on the scale ring or the dial plate.
  • a compact construction of the counter is provided, wherein a second pot-shaped part is arranged in a first, preferably housing-side, cup-shaped part.
  • the respective pot bottoms are facing away from each other.
  • the inner surfaces of the pot floors are thus facing each other.
  • the second, inner pot-shaped part can wear the scale ring or the scale plate or train directly.
  • the second pot-shaped part is rotatable about a central pot axis within the first pot-shaped opening part.
  • the transmission part passes through the bottom of the first cup-shaped opening part, for further extension of the transmission part in the resulting pot cavities.
  • the counter is arranged in a removable from the storage space of the inhaler part. This is preferably a part which, in the course of a customary use of the inhaler, in particular for the preparation of an inhalation process, is to be removed from the part having the reservoir of the inhaler.
  • a cap in particular screw cap of the inhaler.
  • This cap is in particular to expose a mouthpiece or the like, via which the inhalation process has to be done to remove.
  • the transmission part may be movable from an actuating end position into an actuating position initially by means of spring force.
  • the spring force may result from a separately provided spring, for example. Metal spring such as. A cylinder compression spring. Also, the spring force can be given by a corresponding resilient setting of the transmission part itself.
  • the transmission part can be structurally designed at least over a partial section so that the spring force results with a corresponding load.
  • the spring force may result from a spring element or spring section, which consists of a resilient plastic.
  • the transmission part is preferably displaceable in the screwing direction of the screw cap.
  • the metering chamber part cooperating with the transfer part is preferably movable in the screwing direction along the axis resulting therefrom.
  • the movement of the transmission part within the screw cap is stop-limited, this in the direction of an operating end position and / or in the direction of a Betjans gardeningswolf of the transmission part.
  • the transmission part may be spring-loaded in the direction of a Betjansend ein.
  • the spring force acts via the transmission part in the direction of the Dosierhuntteil.
  • the Dosierhuntteil can be immersed in the dosing chamber having part of the inhaler in an end position in which the metering chamber in the powdery substance supply in the reservoir.
  • that transmission part be received in a rotationally secured manner in the removable part. This can be achieved by constructive means, for example, according to a non-round cross-sectional configuration transverse to the direction of displacement of the transmission part and a corresponding geometric configuration of the opening in the region of the bottom of the cup-shaped opening part of the counter.
  • the removable part has an outwardly open Topfausformung, in which an inverted directed pot part, which has cooperating with the worm gear extensions, is used.
  • the pot opening can point in the screwing direction of the screw cap, in particular in the unscrewing direction of the screw cap.
  • the counter is so arranged in handling favorable manner in the removable part, so in particular in the screw cap.
  • the pot part turned upside down in the pot formation is rotatably supported in the pot formation for cooperation with the worm wheel, in particular rotatable about a longitudinal axis of the inhaler extending in the screwing direction.
  • the pot bottom of the cup part can also form a dial, for example, having numbers, symbols or color sections, which give particular indication of the remaining possible inhalation processes.
  • the pot part outside on its bottom of the pot can be covered by a connected with the Topfausformung cover.
  • the cover member may be rotatably formed with the Topfausformung, accordingly preferably fixed to the rotatable pot member.
  • the cover part can form an end face of the screw cap directed transversely to the longitudinal axis.
  • the cover part traps over the dial formed by the bottom of the pot part.
  • the cover part may have a viewing window. This may be a simple breakout in the cover, to expose a portion of the cup bottom that has the scale.
  • the viewing window consists of a transparent portion of the otherwise preferably non-transparent cover.
  • the cover part can have a holder receptacle for a spring acting on the transmission part.
  • a holder receptacle can also offer the stop member for the transmission part.
  • a structurally favorable solution is here further given by the fact that the support receptacle also offers a Achsausformung for rotatable mounting of the cup part.
  • the holder receptacle and / or the stop member in a preferred embodiment passes through the pot bottom of the cup part.
  • a switching step of the counter is triggered with removal of the cap from the pantry and the mouthpiece having part of the inhaler or, as preferred, with replacement of the cap.
  • the preferred trained scale plate extends in a plane transverse to the screw axis of the cap, more preferably the cap face (with) forming.
  • Fig. 1 shows an inhaler of the type in question in perspective
  • Fig. 2 is a side view according to arrow II in Figure 1;
  • Fig. 3 is a plan view of the inhaler with a view of a in one
  • Screw cap arranged counter
  • Figure 4 shows the section according to the line IV - IV in Figure 3, concerning a cap-closed basic position of the inhaler.
  • Figure 5 is a partially cutaway perspective view of the inhaler with components of the counter shown explosively perspective.
  • Fig. 6 is a further exploded perspective view of the counter
  • FIG. 7 shows a partially sectioned perspective view of the area of a screw cup side pot embodiment for receiving the counter
  • Fig. 10 is a side view thereof
  • FIG. 11 is a perspective detail view of a transmission part of
  • FIG. 12 shows the section according to the sectional area XII in FIG. 11;
  • Fig. 14 is a plan view of the cup part; 15 shows the bottom view for this purpose with reproduced in dotted line type worm wheel.
  • FIG. 16 shows a longitudinal section through the inhaler corresponding to FIG. 4, relating to an intermediate position in the course of removal of the screw cap;
  • FIG. 17 is a sequential view of FIG. 16; FIG.
  • FIG. 18 shows another illustration corresponding to FIG. 4, after removal of the screw cap, concerning a position in the course of inhalation;
  • Fig. 19 is a further sectional view corresponding to FIG 4, a
  • FIG. 20 shows the top view according to the arrow XX in FIG. 19.
  • the inhaler 1 shown in the figures for the inhalation of a powdery substance 2, in particular of a medical nature, is realized as a conveniently portable, short-rod-shaped pocket device, with a shape-determining cylindrical housing 3.
  • the cylindrical, tubular housing 3 has on the head side an outer cylinder 4 that is rotatable relative to the housing 3 about the inhaler axis x.
  • the outer cylinder is fixed in a rotatable manner on the housing 3 in the region of an end-side radial step.
  • the likewise cylindrical, tubular outer cylinder 4 goes on the head side of the inhaler 1 in an attached mouthpiece 5, which is shaped mouth, for example, flattened.
  • This mouthpiece 5 is protectively überfangbar means of a cup-shaped cap.
  • the closure cap can be realized as a screw cap 6, for which purpose an internal thread assigned to it engages in a corresponding external thread on the jacket wall of the housing 3.
  • the outer cylinder 4 is in a rotationally fixed connection with the screw cap 6, for which purpose the outer cylinder has jacket walls outside vertically aligned ribs 7, which interact with correspondingly positioned slot-like vertical grooves on the inside of the screw cap 6. Accordingly, a screw actuation of the screw cap 6 triggers a rotation of the outer cylinder 4 about the inhalation axis x.
  • the screw cap 6 serves as an actuating handle for ejecting the powdery substance 2 in reproducible subsets 8, for which purpose the axial screwing stroke of the threaded engagement of internal thread and external thread is used.
  • the substance 2 is received in a storage chamber 9 of the housing 3 (optionally refillable).
  • a substance subset 8 is conveyed to a transition point U lying outside of the storage chamber 9 via the metering device.
  • suction-transportable basic bodies such as lactose may be carriers for micronized pharmaceutical fine particles adhering to the surface side.
  • the bottom end of the storage chamber 9 preferably forms a pot-shaped pressure base, which is under spring loading in the direction of the mouthpiece 5 by means of a compression spring.
  • the storage chamber 9 closes off with a chamber ceiling 10.
  • This is centrally penetrated by a cylindrical portion of a in a vertical plane to the inhaler axis x extending rotary member 11.
  • This is substantially plate-like shape and is non-rotatably connected to the outer cylinder 4, so according to the chamber ceiling 10 around the inhalator x axis rotatable.
  • Rotationally fixed to the cylinder portion of the rotary member 11 is a protruding from the chamber ceiling 10 into the storage chamber 9 rotor R is connected.
  • This rotor R has a wing 12.
  • the wing 12 abuts with a surface on the facing chamber ceiling surface. In radial extension, the wing 12 reaches approximately from the cylinder section to the inner wall of the storage chamber 9.
  • the wing 12 of the rotor R protrudes into the substance supply of the storage chamber 9 a.
  • the shoulder formed by the chamber cover 10 forms a stator in cooperation with the rotor R rotatable relative to the storage chamber 9.
  • a sealing bushing 13 This is preferably made of a rubber material or similar elastic material. This leaves centrally a cross-sectionally slot-shaped guide opening for a cross-section adapted, rod-like Dosierhuntteil 14th
  • the Dosierhuntteil 14 functions according to appropriate design as a moving metering chamber 15 for the dispensed substance subset 8, wherein the movement of the Dosierhuntteils 14 relative to the storage space 9 linearly in the longitudinal center axis (inhaler axis x) of substantially lent rotationally symmetrical designed inhaler 1, superimposed by a rotational movement performed around the inhaler axis x.
  • the metering chamber part 14 is essentially formed as a flat part with an elongate rectangular cross section in a plane transverse to the inhaler axis x.
  • the cross-sectional configuration of the metering chamber part 14 and a preferred tapering of the free end region have a loosening displacement effect in relation to the lake of pulverulent substance 2 in the storage chamber 9 due to the rotary drive of the metering chamber part 14 in the center region.
  • the metering chamber 15 is realized as a transverse bore running essentially perpendicular to the inhaler axis x, this with a bore axis which passes through the broad side surfaces of the metering chamber part 14.
  • the transverse bore is conically shaped, so that the transverse bore tapers to a broad side surface of the Dosierhuntmaschines 14 out.
  • a mouthpiece-side section of the screw cap 6 forms a docking point 16, which disengages in the event of an overload, between the metering chamber part 14 and the screw cap 6.
  • the screw cap-side latching means can thereby have a be resilient hook ring, which is formed in the region of the free end of a centrally located below a transverse to the inhaler axis x aligned bottom 17 arranged hollow cylinder 18.
  • the corresponding end of the Dosierhunters 14 is rotationally symmetrical in cross-section, further in the transition region from the flat portion to the cylindrical end portion a plate-shaped radial collar 19 grows.
  • the end region of the metering chamber part 14 facing away from the flat part forms a latching head 20.
  • a wasp waist-like annular groove is formed between this and the radial collar 19, a wasp waist-like annular groove is formed.
  • the latching head 20 can be overcome by the lugs 21 in both axial directions.
  • the locking can be quite tight, as it is solved in the fferverlagerung the screw 6 and reconnected.
  • the central opening of the mouthpiece 5 is formed in the region of a dispersion part. This opens outwardly, ie facing away from the storage chamber 9 conical, wherein the wall facing the storage chamber 9 merges into an annular, roof-like ceiling portion 22. This also forms the upper end of the mouthpiece 5 supporting securelyenzylin- 4.
  • the central clearance created by the mouthpiece-side dispersing part is centrally penetrated by the hollow cylinder 18 carrying the lugs 21 in the cap closure position.
  • an inner cylinder 23 is received centrally by the metering chamber part 14 and, in the cap closure position, at least partially penetrated by the closure cap-side hollow cylinder 18. This is rotatably connected to the outer cylinder 4.
  • This inner cylinder 23 is designed substantially as a hollow body and carries a centrally displaceable piston 24 in the axial direction.
  • the guide of the piston 24 is approximately in the lower half of the inner cylinder 23, facing the storage chamber 9 by a circular cross-section guide section 25th realized.
  • the storage chamber 9 facing away portion of the inner cylinder 23 forms a relation to the guide portion 25 querroughsver mecanicrten piston head displacement range, the axially oriented range wall having radial openings. These radial openings communicate fluidly with an external cylinder-side grid wall section 26.
  • the flow channel 27 opens into the space left by the guide section 25 free space.
  • a channel intermediate portion 28 which extends starting from the guide portion 25, including an angle of about 45 degrees to a plane perpendicular to the x-oriented plane in the direction of the associated wall of the outer cylinder 4 rising in order then to pass into an axially directed channel 29 at the end.
  • This channel 29 is created by an axially aligned, slot-like, radially outwardly opening recess in the inner cylinder jacket.
  • the radial overlap of the channel 29 is achieved by the associated wall of the outer cylinder 4th
  • the axially aligned channel 29 opens with its end facing the mouthpiece 5 in an annular chamber 30. This forms a vortex chamber.
  • Their ceiling is roof-like in cross-section and can be equipped with edge-spreading, protruding wings. The ceiling is fixed with an axially directed flange on the inner side of the inner cylinder 23.
  • the annular chamber bottom 31 is formed by an annular collar protruding radially outward on the inner cylinder 23. This is broken by the axially aligned channel 29.
  • the annular chamber 30 is bounded radially inwards by an end-side wall section of the inner cylinder 23 serving for latching the ceiling.
  • the annular chamber wall formed in this way is provided with slot-like openings 32 for connection of the annular chamber 30 with the piston head displacement area.
  • the non-rotatably held in the inner cylinder 23, but axially displaceable piston 24 initially has a plate-shaped in the direction of the mouthpiece 5 opening piston head 33. This opens conically in cross section.
  • two mutually parallel, axially aligned tongues 34 are integrally formed.
  • the piston 24 is made of a rubber-like material.
  • the outside of the wall, the cross-sectional contour of the guide portion of the inner cylinder 23 receiving tongues 34 are split lip-like at their lower free edge, further have in their free edge region of material-reinforced sealing surfaces.
  • the flat part of the Dosierhunters 14 is guided, wherein the sealing surfaces of the tongues 34 in cooperation have stripping and sealing effect with the flat part of the metering chamber 14.
  • the plate-like piston head 33 rests on a bottom area of the piston head displacement area in a stop-limited manner.
  • the peripheral edge region of the free end of the piston head 33 is sealingly against the associated inner wall of the inner cylinder 23 at.
  • the head of the metering chamber part 14, i. its radial collar 19 and locking head 20 in the created by the plate-like configuration of the piston head 33 recess.
  • the piston head 33 is in this case at an axial distance below the ceiling portion 22nd
  • the screw cap 6 extends in the mounted state facing away from the storage chamber 9 and starting from the bottom 17 further to form an outwardly in the axial direction cup-shaped opening part (Topfausformung 35).
  • the screw cap 6 offers this one with the fferkappenwandung integrally formed pot-shaped part (pot wall 36).
  • the resulting pot-opening surface is transversely directed in its plane to the inhaler axis x.
  • a counter 37 is arranged in the Topfausformung 35 . This first comprises a pot portion 38 with a pot bottom 39 and a rotationally symmetrical to the inhaler x rotating peripheral pot wall 36th
  • the pot member 38 is disposed in the Topfausformung 35 such that the pot part 38 is directed with its opening in the direction of the bottom 17 of the screw cap 6.
  • the pot bottom 39 extends substantially in the opening plane of the pot wall 36th
  • the cup part 38 is received rotatably around the inhaler axis x in the pot shape 35.
  • the pot wall 40 of the pot part 38 extends radially inwardly of the pot wall 36 of the Topfausformung 35th
  • the outwardly directed surface of the pot bottom 39 is formed as a scale plate, carries in the illustrated embodiment numbers, for example. Numbers in increments of ten.
  • the pot bottom 39 forming the scale disk is spanned by a plate-shaped cover part 41, which is peripherally connected to the wall of the screw cap 6 in a rotationally fixed manner.
  • the cover 41 is provided with a viewing window 42. This is preferably a transparent region of the cover. This extends in the circumferential direction approximately over an angular range of 30 to 45 degrees.
  • a plurality of extensions 43 are integrally formed on the bottom of the pot 39. These are along a coaxial with arranged halator axis x aligned circular line and spaced from each other evenly. Thus, as shown in FIG. 15, eight such extensions 43 are provided over a total angular range of about 270 degrees.
  • the extensions 43 extend starting from the bottom of the pot 39 approximately parallel to the inhaler axis x in the manner of a pin in the interior of the pot.
  • the pot bottom 39 is penetrated centrally by a holder receptacle 44 extending along the inhaler axis x. This also forms a stub axle for cooperation with a peripheral hub portion 45 of the cup part 38.
  • the support receptacle 44 is formed as a hollow cylinder, this extends over about one third of the axial height of the pot part 38th
  • a part of the counter 37 is also a rod-like transmission part 46.
  • This extends partly within the pot member 38 and under enforcement of the bottom 17 in the region of a correspondingly provided opening 47 with attached screw cap 6 within the hollow cylinder 18.
  • the transmission part 46 is substantially a circular cylindrical shape, wherein in particular the dipping into the hollow cylinder 18 section is adapted with respect to its outer diameter to the inner diameter of the hollow cylinder 18th
  • the transmission part 46 In the cap closure position in the direction of the lugs 41 of the hollow cylinder 18 facing end face of the transmission part 46 extends in the illustrated embodiment transversely directed to the inhaler axis x.
  • the extending along the inhaler axis x transmission part 46 is for acting on the Dosierhuntteil 14, but also detachable from this, and has the nose 21 of the hollow cylinder 18, ie in the region of extending in the pot portion 38 end portion, the front side one axial bore.
  • a spring 48 in particular a cylinder compression spring, added, which is supported at the bottom end of the support receptacle 44 of the cover 41 at the other end.
  • the transmission part 46 is thus spring-loaded in the direction of the free end face of the transmission part 46.
  • a radial projection 49 is formed on the transmission part 46. This is guided in a arranged on the bottom 17, extending into the interior of the cup portion 38 guide portion 50. This also provides a rotation of the transmission part 46 is given.
  • an actuating finger 51 is integrally formed on the transmission part 46. This extends radially spaced from the facing outer surface of the transfer member 46, starting from a plane spaced from the end face of the transfer member 46 within the pot member 38 level to about in the plane of this end face.
  • the actuating finger 51 is designed and aligned to cooperate with a worm wheel 52. This is supported via axle sections 53 on integrally formed on the base 17 supports 54 about an axis transverse to the inhaler x axis y rotatably within the Topfausformung 35.
  • the worm wheel 52 interacts positively with the extensions 43 of the cup part 38.
  • the worm gear 52 is designed essentially as a single-turn worm shaft with a worm helix pitch which is adapted to the spacing of two adjacent extensions 43 in the circumferential direction. Viewed in the axial direction of the worm shaft, the worm shaft is provided with such a length that, taken as a whole, there are two worm gear cutting sections substantially.
  • the respectively associated extension 43 enters at the shaft height of the worm wheel 52 between the flanks of the screw helix. With rotary displacement of the worm wheel 52 about the axis y, a displacement of the captured extension 43 takes place correspondingly around the inhaler axis x.
  • the peripheral end edge of the screw helix is profiled in the form of a saw tooth, with each tooth 55 having a steep flank oriented approximately at a radial edge and, at the rear, a flank descending flat towards the following tooth.
  • a retainer finder 56 extending from the floor 17 and engaging the interior of the cup part 38 and acting on a tooth 55 of the worm wheel 52 prevents a reverse rotation of the worm wheel 52 against the predetermined counting displacement direction.
  • the operation of the inhaler 1 is as follows:
  • the screw cap 6 To prepare for inhalation, the screw cap 6 must first be turned off. In the course of bobabriols the screw cap 6 follows via the specified clutch a rotational drive of the outer cylinder 4 and on this of the inner cylinder 23, further in the specified embodiment, all parts above the Vorratshuntebene that are not rotatably connected to the housing 3. Correspondingly, the metering chamber part 14 is also dragged with a torque, wherein an axial displacement of the metering chamber part 14 via the docking chamber 6 is further prevented by the screwing displacement of the screw cap 6. 16 takes place, which causes a helical displacement of the metering chamber 15 in the overlapping to the flow channel 27, still closed emptying standby position as shown in Figure 16. Upon reaching the EntEnglishe-ready position of Dosierhuntteils 14 this is determined detent.
  • the rod-like transmission part 46 loses the frontal support on the latching head 20 of the metering chamber part 14, whereupon the transmission part 46 is loaded by the spring 48 along the axis x is displaced in the direction of the lugs 21 of the hollow cylinder 18, all the way to a stop-limited position in which the radial projection 49 of the transmission part 46 comes to rest on the floor 17.
  • the actuating finger 51 is in this position viewed in the axial direction spaced from the teeth 55 of the worm wheel 52.
  • the counting position is secured by engagement of the retaining finger 56th
  • the tongues 34 of the piston 24 are on both sides of the metering chamber 15 overlapping. Accordingly, in this position, the substance submenu Ge 8 also do not trickle out partially. Rather, this is safely trapped in the metering 15.
  • Air is sucked in via the mouthpiece 5, which initially causes an axial displacement of the piston 24 in the direction of the ceiling by air hammering of the piston head 33.
  • the trigger pressure is in the illustrated embodiment at about 2 kgPa. The triggering takes place as far as possible abruptly (compare FIG. 18).
  • the tongues 34 are also displaced axially to release the metering chamber 15.
  • the metering chamber 15 is hereafter in a removal-release position in which it is released in the flow path between the flow channel 27 and channel intermediate section 28.
  • the metering chamber 15 is evacuated while sucking from the sides of the flow channel 27 and supplied to the main air flow path for inhalation.
  • the screw cap 6 is screwed on again.
  • the piston 24 is returned to its basic position via the radial collar 19 of the metering chamber part 14. Move the position.
  • the metering chamber part 14 is displaced downwards into the storage chamber 9 under axial displacement and corresponding rotational movement.
  • the sliding back displacement of the piston 24 via the metering chamber 14 ends with stop the free lips of the tongues 34 on the facing ceiling surface of the cylinder part.
  • the lugs 21 terminate in the annular groove between the latching head 20 and the radial collar 19 of the metering chamber part 14.
  • An inhaler 1 which is characterized in that for acting on the Dosierhuntteil 14, but also detachable from this, a transmission part 46 is formed, which has the actuating finger 51 for the worm wheel 52;
  • An inhaler 1 or counter 37 which is characterized in that the counter 37 is arranged in a removable from the reservoir 9 of the inhaler 1 part;
  • An inhaler 1 or counter 37 characterized in that the removable part is a screw cap 6;
  • An inhaler 1 or counter 37 which is characterized in that the transmission part 46 is movable from an operating end position into an operating initial position by means of spring force;
  • An inhaler 1 or counter 37 which is characterized in that the transmission part 46 within the screw cap 6 stop limited in the screw direction is movable;
  • An inhaler 1 or counter 37 which is characterized in that the transmission part 46 abuts in the screwed-on state of the screw cap 6 on a stop member 57 of the screw cap 6;
  • An inhaler 1 or counter 37 which is characterized in that the transmission part 46 is received in a rotationally secured in the removable part;
  • An inhaler 1 or counter 37 which is characterized in that the removable part has an outwardly open Topfausformung 35, in which an inverted directed pot portion 38, which has with the worm wheel 52 cooperating extensions 43, is inserted;
  • An inhaler 1 or counter 37 which is characterized in that the pot member 38 is the outside of his cup bottom 39 of a connected to the Topfausformung 35 covering part 41 overlapped;
  • An inhaler 1 or counter 37 which is characterized in that the cover 41 has a viewing window 42;
  • An inhaler 1 or counter 37 which is characterized in that the cover 41 has a support receptacle 44 for the transmission member 46 acting on the spring 48;
  • An inhaler 1 or counter 37 which is characterized in that the cover 41 has the pot bottom 39 of the cup portion 38 by cross-stop member 57 for the transmission part 46.

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Abstract

L'invention concerne l'inhalateur (1) destiné à des matières pulvérulentes (2), comprenant un réservoir (9) et un élément de compartiment de dosage (14) mobile par rapport au réservoir (9), un compteur de doses (37) présentant une roue tangente (52) et un doigt d'actionnement (51). Afin de concevoir un inhalateur ou un compteur de doses pour un inhalateur du type susmentionné d'une manière avantageuse, un élément de transmission (46) comportant le doigt d'actionnement (51) et destiné à la roue tangente (52) est conçu pour agir sur l'élément de compartiment de dosage (14) tout en étant détachable de cette dernière.
PCT/EP2016/079363 2015-12-02 2016-12-01 Inhalateur pour matières pulvérulentes et compteur de doses pour inhalateur WO2017093367A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102015120949.7 2015-12-02
DE102015120949.7A DE102015120949A1 (de) 2015-12-02 2015-12-02 Inhalator für pulverförmige Substanzen sowie Zählwerk für einen Inhalator

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WO2017093367A1 true WO2017093367A1 (fr) 2017-06-08

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PCT/EP2016/079363 WO2017093367A1 (fr) 2015-12-02 2016-12-01 Inhalateur pour matières pulvérulentes et compteur de doses pour inhalateur

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DE (1) DE102015120949A1 (fr)
WO (1) WO2017093367A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006029753A1 (de) * 2006-03-10 2007-09-13 Alfred Von Schuckmann Inhalator für pulverförmige Substanzen
US20080005149A1 (en) 2006-06-29 2008-01-03 Adobe Systems Incorporated Collection presentation
DE102007056263A1 (de) 2007-11-22 2009-05-28 Siegfried Generics International Ag Dosiervorrichtung zur Inhalierung einer pulverförmigen Substanz
DE102014114462A1 (de) * 2013-10-15 2015-04-16 Alfred Von Schuckmann Zählwerk und Handgerät mit Zählwerk
US20150320947A1 (en) * 2014-05-07 2015-11-12 Boehringer Ingelheim International Gmbh Nebulizer

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006029753A1 (de) * 2006-03-10 2007-09-13 Alfred Von Schuckmann Inhalator für pulverförmige Substanzen
WO2007104698A1 (fr) 2006-03-10 2007-09-20 Astra Zeneca Ab Inhalateur pour substances pulvérulentes
US20080005149A1 (en) 2006-06-29 2008-01-03 Adobe Systems Incorporated Collection presentation
DE102007056263A1 (de) 2007-11-22 2009-05-28 Siegfried Generics International Ag Dosiervorrichtung zur Inhalierung einer pulverförmigen Substanz
US20100300441A1 (en) 2007-11-22 2010-12-02 Siegfried Generics International Ag Metering Device for the Inhalation of a Pulverulent Substance
DE102014114462A1 (de) * 2013-10-15 2015-04-16 Alfred Von Schuckmann Zählwerk und Handgerät mit Zählwerk
US20150320947A1 (en) * 2014-05-07 2015-11-12 Boehringer Ingelheim International Gmbh Nebulizer

Also Published As

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