JP5330916B2 - Powder drug dispenser - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a powder medicine administration device preventing empty administration in a state that there is no powder medicine by locking the operation of a lever when the display of the residual quantity of medication becomes zero. <P>SOLUTION: The powder medicine administration device is constituted so that the upper opening part formed to the under surface of an upper body part 20 and the medicine receiving chamber provided to the upper surface of a lower body part 30 in a recessed state may be switched between a communication state and a non-communication state by the operation of the lever, the powder medicine is introduced into the medicine receiving chamber in the communication state from the medicine storage chamber formed in the upper body part through the upper opening part and the powder medicine introduced into the medicine receiving chamber by the upper body part to be quantified is moved to the discharge position facing an air passage from the standby position of the medicine receiving chamber to be discharged along with air and provided with a counter 60 for counting the operation number of times of the lever 33 when the medicine receiving chamber moves to the standby position from the discharge position and a lock mechanism K locking the operation of the lever 33 when the display of the residual quantity of medication of the counter 60 becomes zero. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

Description

  The present invention relates to a powder drug administration device.

  As a powder medicine administration device, an inhalation-type dispensing device is known in which a powder medicine introduced into a medicine receiving chamber from a medicine reservoir chamber is scraped off by operating a lever and a predetermined amount of powder medicine is discharged together with air.

  Also, by operating the lever, the remaining number of inhalable times can be displayed on the remaining number counter, and when the remaining number becomes zero, “0” is displayed and the user cannot inhale the powder medicine. An inhalation-type dispenser has been developed to allow the patient to recognize.

JP-A-4-220266

  However, in the conventional inhalation-type powder medicine administration device, since the lever operation for inhalation (medication) is possible even after the remaining number counter becomes zero display, the user can display zero display of the remaining number of medication. When overlooked, there was a problem that the inhalation of the color continued even though the powder medicine was not produced.

  Therefore, the present invention has been made to solve the above-described problems. When the display of the number of remaining medicines becomes zero, the operation of the lever is locked to surely perform the color medication without the powder medicine. An object of the present invention is to provide a powder medicine administration device that can be prevented.

The present invention switches between a communication state in which the upper opening formed in the lower surface of the upper body portion and the medicine receiving chamber recessed in the upper surface of the lower body portion communicate with each other and a non-communication state in which communication does not occur. In this communication state, the powder medicine is introduced into the medicine receiving chamber from the medicine reservoir chamber formed in the upper body section through the upper opening, and is introduced into the medicine receiving chamber by the upper body section and is scraped off. In the powder medicine administration device that moves the medicine from the waiting position of the medicine receiving chamber to the discharging position facing the air passage and discharges it together with the air, the number of lever operations when the medicine receiving chamber moves from the discharging position to the waiting position is counted. the counter is provided, display the provided locking mechanism for locking the operation of the lever, counter, ten digit is rotatably supported on the counter plate numbers when dosing the remaining number becomes zero the counter And a second counter that is rotatably supported by a counter plate around the first counter and rotates by operating a lever, and displays a one-digit number in conjunction with the first counter. The locking mechanism includes a stopper claw provided on the lower main body that is rotated by the operation lever, a flexible arm having a collar provided on the counter plate, and a protrusion provided on the first counter. When the remaining dose of the first and second counters becomes zero, the projection of the first counter presses the flexible arm, and the flange portion of the flexible arm engages with the stopper claw of the lower body portion. By being stopped, the operation of the lever is locked .

  As described above, according to the present invention, even if the user overlooks the zero indication of the remaining amount of medication, the lever cannot be operated, so the user can be sure that the remaining amount of medication is zero. It is possible to prevent the administration of the dose in the absence of the administered powder drug.

It is a perspective view showing a powder medicine administration device of a 1st embodiment of the present invention. It is a disassembled perspective view of the said powder medicine administration device. It is a disassembled perspective view of the counter unit used for the said powder medicine administration device. It is sectional drawing in case the lever of the said powder medicine administration device exists in an inhalation position. It is a top view which shows the principal part of a powder medicine administration device in case the said lever exists in an inhalation position. It is sectional drawing of the powder medicine administration device in case the said lever exists in a standby position. It is a top view which shows the principal part of the powder medicine administration device in case the said lever exists in a standby position. It is sectional drawing which follows the YY line in FIG. It is sectional drawing which follows the ZZ line in FIG. It is a figure which shows the chemical | medical agent reception chamber of the said powder pharmaceutical administration device, Comprising: (a) is a top view, (b) is a partial cross section figure. It is a top view which shows the principal part of a powdered medicine administration device in case the said lever exists in the inhalation position of the medication remaining number 21. It is a top view which shows the principal part of a powdered medicine administration device in case the said lever exists in the inhalation position of the number 20 of medication remaining. It is a top view which shows the principal part of a powdered medicine administration device in case the said lever exists in the position just before the number 19 of medication remaining. It is a top view which shows the principal part of a powdered medicine administration device in case the said lever exists in the waiting position of the number 19 of medication remaining. It is a top view which shows the principal part of a powdered medicine administration device in case the said lever exists in the inhalation position of the medication remaining number 1. It is a top view which shows the principal part of a powdered medicine administration device in case the said lever exists in the position just before the medication remaining number 0. It is a top view which shows the principal part of a powdered medicine administration device in case the said lever exists in the waiting position of the medication remaining number 0. It is a top view which shows the principal part of a powder medicine administration device when the said lever is locked by the dosage remaining number 0. (A) is an enlarged cross-sectional view of the main part showing the state before the lever is locked just before the remaining number of medications is 0, and (b) shows the state when the lever is locked with 0 of the remaining amount of medication. It is an expanded sectional view of the principal part. It is a perspective view which shows the counter plate of the counter unit used for the powder medicine administration device of the 2nd Embodiment of this invention. It is a perspective view of the counter unit of the said 2nd Embodiment. It is a top view which shows the principal part of a powdered medicine administration device in case the lever exists in the inhalation position of the number 1 of medication remaining in the said 2nd Embodiment.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  1 is a perspective view showing a powder drug administration device according to a first embodiment of the present invention, FIG. 2 is an exploded perspective view of the powder drug administration device, and FIG. 3 is an exploded perspective view of a counter unit used in the powder drug administration device. 4 is a cross-sectional view when the lever of the powder medicine administration device is in the inhalation position, FIG. 5 is a plan view showing the main part of the powder medicine administration device when the lever is in the inhalation position, and FIG. 7 is a cross-sectional view of the powder drug administration device when the lever is in the standby position, FIG. 7 is a plan view showing the main part of the powder drug administration device when the lever is in the standby position, and FIG. 8 is a YY line in FIG. 9 is a cross-sectional view taken along the line ZZ in FIG. 5, FIG. 10 (a) is a plan view of the drug receiving chamber of the powder drug administration device, and FIG. 10 (b) is the drug receiving chamber. FIGS. 11 to 18 are partial cross-sectional views, and FIG. 19 to FIG. FIG. 19B is an enlarged cross-sectional view of the main part showing the state before the lever is locked just before the remaining number of medications is 0, and FIG. 19B is the main part showing the state when the lever is locked with the remaining number of medications 0. FIG.

  As shown in FIGS. 1, 2, and 4 to 8, the inhalation-type powder medicine administration device 10 includes a lower body portion having an upper body portion 20 and a lever 33 as two body portions that can be slid relative to each other. 30. As shown in FIGS. 4 and 6, the upper main body portion 20 and the lower main body portion 30 have disk portions 21 and 31 that overlap vertically, and the substantially circular shape of the disk portion 21 of the upper main body portion 20. The lower surface 21b and the substantially annular upper surface 31a of the disk portion 31 of the lower main body 30 are configured to slide relative to each other. The central portion of the disk portion 21 is integrally formed with a substantially cylindrical shaft portion 22 extending vertically downward from the lower surface 21b, while the central portion of the disk portion 31 extends in a direction perpendicular to the upper surface 31a. A through hole 31c is formed, and the shaft portion 22 is rotatably inserted into the through hole 31c. In other words, in this embodiment, the shaft portion 22 is rotatably inserted into the through hole 31c, so that the upper body portion 20 and the lower body portion 20 and the lower portion around the central axis (rotation shaft) O of the shaft portion 22 and the through hole 31c. The side main body 30 is relatively rotated (relative sliding), so that the lower surface 21b and the upper surface 31a slide in the circumferential direction. The upper body part 20 has a bottom wall part 23 located below the lower body part 30. The shaft part 22 is constructed between the disk part 21 and the bottom wall part 23, and the disk part 31 of the lower body part 30 is sandwiched between the disk part 21 and the bottom wall part 23 of the upper body part 20. Yes.

  As shown in FIGS. 1, 2, 4 to 7, a cylindrical portion 25 projects from the side surface of the peripheral wall portion 24 of the upper body portion 20 toward the radially outer side of the peripheral wall portion 24. ing. As shown in FIGS. 1 and 4 and the like, a discharge port 26d as an outlet of the air passage 26 is formed at the tip of the cylindrical portion 25, and air and powder medicine M (powder medicine and air are discharged from the discharge port 26d. And a stirring flow) are discharged.

  In addition, as shown in FIGS. 1, 2, 4, and 6, in this embodiment, a cover 40 that is formed in a bottomed cylindrical shape that opens downward and covers the upper body 20 from above is provided. It has been. As shown in FIG. 1, a slit 27 is formed between the lower edge of the peripheral wall portion 42 of the cover 40 and the upper edge of the peripheral wall portion 24 of the upper main body portion 20. The lever 33 that integrally projects in the radially outward direction from the peripheral wall portion 32 of the lower main body portion 30 protrudes outward from the cover 40 and the upper main body portion 20 through the slit 27. By operating the lever 33, the lower main body 30 can be rotated relative to the upper main body 20 (relative sliding). In addition, the operation range of the lever 33, that is, the lower main body portion 30 is relatively rotated (relative to the upper main body portion 20) by appropriately setting the formation range of the slit 27 (interval between both end portions 27 a and 27 b). The range to slide) can be set. In the present embodiment, the slit 27 communicates the space S in the cover 40 with the outside, so that air can flow in the air passage 26.

  As shown in FIG. 4, the air passage 26 is formed in the upper main body portion 20, and includes a passage 26 b that vertically penetrates the upper main body portion 20 from the inlet opening 26 a, and a side from a midway position near the lower end side of the passage 26 b. And a passage 26e extending in the direction and penetrating through the center of the cylindrical portion 25 to reach the discharge port 26d.

  As shown in FIGS. 4 and 5, in use, the opening 26 c at the lower end of the passage 26 b and the medicine receiving chamber 34 filled with the powder medicine M overlap, and the medicine receiving chamber 34 faces the air passage 26. It is like that. That is, in this state, the medicine receiving chamber 34 is located at the discharge position (inhalation position). In this state of use, when the user sucks the cylindrical portion 25 by mouth, an air flow is generated in the air passage 26, and the powder medicine M and the air in the medicine receiving chamber 34 are stirred by the passages 26b and 26e. The mixed flow of air and powdered medicine M is taken into the user's mouth from the discharge port 26d and can be inhaled.

  As shown in FIG. 8, the drug storage chamber 28 that stores the powdered drug M penetrates the disk portion 21 of the upper main body portion 20 with a substantially fan-shaped cross section (see FIGS. 5 and 7) concentric with the shaft portion 22. It is formed as a substantially sealed space surrounded by a hole, an upper surface 31a of the lower main body 30 that closes the lower end of the through hole, and a counter unit 50 that will be described later that closes the upper end of the through hole. The lower end of the through hole is an opening 28a, and the powder medicine M in the medicine storage chamber 28 is filled into the medicine receiving chamber 34 formed on the upper surface 31a of the lower main body 30 through the opening 28a. It has become so. The filling of the powder medicine M into the medicine receiving chamber 34 will be described later.

  And as shown in FIG. 9, the edge of the both sides of the circumferential direction (namely, relative sliding direction) of this opening part 28a is chamfered, and it expands toward the open side (in this case, the upper surface 31a side). An inclined surface 28b (which enlarges the opening area) is formed.

  10A and 10B are views showing a medicine receiving chamber, where FIG. 10A is a plan view and FIG. 10B is a partial cross-sectional view. As shown in FIG. 10, the medicine receiving chamber 34 is formed by recessing the upper surface 31a of the lower main body 30. In this embodiment, the medicine receiving chamber 34 is formed by arranging a plurality of dimple-shaped small holes 34a. ing. At this time, the area of the opening (lower opening) 34b of each small hole 34a is smaller than the area of the opening (upper opening) 28a of the medicine reservoir 28.

  6 and 7 show a state before use. At this time, the medicine receiving chamber 34 is located at the standby position (measurement position). In this state, as shown in FIG. 8, the opening 28a of the medicine reservoir 28 and the medicine receiving chamber 34 overlap each other, and the powder medicine M in the medicine reservoir 28 is received by the gravity via the opening 28a. The chamber 34 is filled. That is, at this time, the medicine receiving chamber 34 is in the filling position, and the opening 28 a of the medicine storage chamber 28 and the medicine receiving chamber 34 are in communication. 7 and 8, it can be seen that in this state, not only the individual small holes 34a forming the drug receiving chamber 34, but also all of the plurality of small holes 34a are simultaneously accommodated in the opening 28a of the drug reservoir chamber 28.

  Then, from the state shown in FIGS. 6 and 7, the user moves the lever 33 to rotate the lower main body 30 relative to the upper main body 20 counterclockwise in FIG. The state shown in FIG. In this state, the medicine receiving chamber 34 filled with the powder medicine M and metered in a constant amount faces the air passage 26 from the opening 26c. That is, at this time, the medicine receiving chamber 34 is in the discharge position (the position of the lever 33 at this time is called the suction position). In addition, the air passage 26 is configured such that both the inlet opening 26a and the outlet 26d communicate with the outside air so that air can flow therethrough. Therefore, when an air flow is generated in the air passage 26 by the suction of the user, the powder medicine M filled in the medicine receiving chamber 34 is efficiently wound up by the air flowing in from the passage 26b and stirred with the air. It will efficiently enter the user's mouth.

  After use, the user moves the lever 33 to rotate the lower body portion 30 relative to the upper body portion 20 in the clockwise direction in FIG. The state where the chamber 34 is in the inhalable discharge position) is changed to the state shown in FIGS. 6 and 7 (the state where the medicine receiving chamber 34 is in the waiting position for weighing).

  As described above, by changing from the state of FIGS. 6 and 7 to the state of FIGS. 6 and 7 through the states of FIGS. 4 and 5, the opening 28 a of the medicine storage chamber 28 and the medicine receiving chamber 34 Thus, it can be seen that the medicine receiving chamber 34 reciprocates below the opening 28a in the relative sliding direction (circumferential direction in FIGS. 5 and 7). While the medicine receiving chamber 34 overlaps the opening 28a, the powder medicine M is filled into the medicine receiving chamber 34 through the opening 28a, and after the overlap with the opening 28a is eliminated, the medicine receiving chamber 34 is filled. The powder medicine M is scraped off by the lower surface 21b of the upper body part 20 and is metered in a fixed amount. That is, the transition of the state is one stroke of introduction and abrasion of the powder medicine M that switches from the non-communication state between the opening 28a and the medicine receiving chamber 34 to the non-communication state through the communication state. . This one stroke is one operation of the lever 33, and the number of operations of the lever 33 is counted down and displayed as a remaining medication number (remaining inhalable number) by the counter unit 50 described later. It has become.

  As shown in FIGS. 2, 3, and 11 to 18, the counter unit 50 is configured so that the medicine receiving chamber 34 is moved from the discharge position (inhalation position) B shown in FIG. 5 to the standby position (metering position) R shown in FIG. The number of operations of the lever 33 during the movement is counted down so that the remaining number of inhalable times (the number of remaining medications) can be displayed. The disc-shaped counter plate 51 and the eccentricity of the counter plate 51 A first counter 60 that displays a ten-digit number rotatably supported by a cylindrical shaft portion 53 in a concave portion 52 having a cylindrical bottom integrally formed at a position, and a deviation in the shaft portion 53 of the counter plate 51 The second counter 70 is rotatably supported around the half-cylindrical crescent-shaped convex portion 55 integrally formed, rotates by the operation of the lever 33, and displays the one-digit number by interlocking with the first counter 60. When The counter plate 51 is slidably supported between a pair of arc-shaped guide convex portions 56 and 57 integrally formed at a position opposite to the concave portion 52 of the counter plate 51, and the medicine receiving chamber 33 is discharged in conjunction with the operation of the lever 33. An indicator 80 is provided to notify the user of the position B (inhalable OK state) or the standby position R (non-inhalable NG state).

  As shown in FIGS. 1, 2, 11, etc., the lever 33 is integrally formed to protrude radially outward from the peripheral wall portion 32 of the lower main body portion 30, and the lower edge of the peripheral wall portion 42 of the cover 40 It is exposed to the outside from a slit 27 formed between the upper edge of the peripheral wall 24 of the upper body 20. As shown in FIGS. 5 and 11, when the lever 33 is operated until it hits one end 27 a of the slit 27, the medicine receiving chamber 34 moves to the discharge position (inhalation position) B. As shown in FIGS. 7 and 14, when the lever 33 is operated until it hits the other end 27 b of the slit 27, the medicine receiving chamber 34 is moved to the standby position (metering position) R.

  As shown in FIGS. 2, 11, 14, and the like, the upper edge of the peripheral wall portion 32 of the lower main body 30 is provided with a feeding claw 35 serving as a second counter and an indicator, and an indicator feeding claw. 36 integrally protrudes upward. That is, the inner portion 35 a of one feed claw 35 abuts on a later-described feed projection 71 of the second counter 70, and the outer portion 35 b of the feed claw 35 abuts one end portion 81 of the indicator 80. Further, the other feed claw 36 comes into contact with the other end portion 82 of the indicator 80. Further, as shown in FIGS. 2 and 19, a stopper claw 37 having an L-shaped cross section is integrally formed on the inner peripheral surface side of the peripheral wall portion 32 of the lower main body portion 30.

  As shown in FIGS. 2, 3, and 19, on the bottom wall portion of the concave portion 52 of the counter plate 51, a locking collar portion that is locked and detached from the stopper claw 37 of the peripheral wall portion 32 of the lower body portion 30. A flexible arm 54 having 54a is integrally formed. Further, the first counter 60 that is rotatably supported by the shaft portion 53 slides on the bottom wall portion of the recess 52 of the counter plate 51. Further, the second counter 70 rotatably supported by the convex portion 55 slides on the upper surface 51a of the counter plate 51, and the indicator 80 disposed between the pair of guide convex portions 56 and 57 slides. It is like that. At this time, the flange portion 81a on the one end portion 81 side of the indicator 80 is engaged with the one end portion 56a of the one guide convex portion 56, and the other end portion of the indicator 80 is engaged with the other end portion 56b of the one guide convex portion 56. The reciprocating movement of the indicator 80 is regulated by engaging the hook 82a on the 82 side.

  As shown in FIGS. 2, 3, 11, and the like, a stopper claw 58 that restricts counterclockwise rotation of the first counter 60 protrudes from the recess 52 of the counter plate 51. That is, as shown in FIG. 11, the tip 58a of the stopper claw 58 is engaged with the stopper surface 62a of each protrusion 62 of the first counter 60, whereby the counterclockwise rotation of the first counter 60 is restricted. At the same time, the base end portion 58b of the stopper claw 58 slides along the tapered surface 62b of each projection 62 of the first counter 60 so that the clockwise rotation of the first counter 60 is allowed. Yes.

  Further, as shown in FIG. 2, FIG. 3, FIG. 11, etc., a stopper claw 59 for restricting the counterclockwise rotation of the second counter 70 protrudes inside the other guide convex portion 57 of the counter plate 51. Has been. That is, as shown in FIG. 11, the tip end portion 59 a of the stopper claw 59 is engaged with the stopper surface 71 a of each protrusion 71 of the second counter 70, thereby restricting the counterclockwise rotation of the second counter 70. In addition, the base end portion 59b of the stopper claw 59 slides along the tapered surface 71b of each projection 71 of the second counter 70, so that the second counter 70 is allowed to rotate in the clockwise direction. Yes.

  As shown in FIGS. 2 and 3, the first counter 60 includes a large-diameter cylindrical portion 61 and a small-diameter cylindrical portion 65 that integrally extends downward from the large-diameter cylindrical portion 61. On the upper surface 61a of the large-diameter cylindrical portion 61, numbers "1" to "6" that display ten-digit numbers up to the 60's with a blank portion of a plain "" that displays one digit cannot be used. “X” indicating “” is written at equal intervals. These numbers and the like can be seen directly by the user through an elliptical observation window 43 formed in the ceiling wall 41 of the cover 40. Further, on the outer peripheral surface 61b of the large-diameter cylindrical portion 61, each of the projections 62 having a substantially triangular prism shape at a position facing the blank portion of the plain “”, the numbers “1” to “6”, and the letter “X”, 63 are integrally projected at regular intervals. Each projection 62 is engaged with the feed claw 73 of the second counter 70 and the first counter 60 rotates in the clockwise direction in the figure, whereby a ten-digit number written on the upper surface 61a of the large-diameter cylindrical portion 61. Can be sequentially switched from “6” to “1”. In addition, the protrusion 63 at the position corresponding to the letter “X” among the protrusions 62 and 63 has a larger protrusion amount (thickness) than the other protrusions 62, as shown in FIGS. 17 and 18. When the remaining number of medications is zero, the notation that can be seen from the observation window 43 for displaying the remaining number of medications on the cover 40 is not “0” but “X0”, so that it is one point ahead of the case of each protrusion 62 ( It is engaged with the feed claw 73 of the second counter 70 at the previous timing.

  Further, as shown in FIGS. 3 and 19, the body portion 54 b of the flexible arm 54 of the counter plate 51 is provided at a position below the protrusion 63 on the outer peripheral surface 65 b of the small diameter cylindrical portion 65 of the first counter 60. A locking projection 66 that presses outward and engages the stopper claw 37 of the peripheral wall portion 32 of the lower body portion 30 by pressing the flange portion 54a is integrally formed. The number of remaining doses of the second counter 70 includes the stopper claw 37 of the peripheral wall portion 32 of the lower main body 30, the flexible arm 54 having the flange portion 54 a, and the locking projection 66 of the first counter 60. A lock mechanism K is configured to lock the operation of the lever 33 when the display becomes zero.

  As shown in FIGS. 2, 3, and 11 to 18, the second counter 70 is formed in an annular plate shape, and the crescent-shaped convex portion 55 of the counter plate 51 and the first counter 60 are substantially circular. It rotates in the clockwise direction in the figure along the periphery of the columnar shape. On the upper surface 70a of the second counter 70, “0” and single-digit numbers “1” to “9” are written at equal intervals. Further, triangular columnar protrusions 71 are integrally formed at regular intervals at positions facing the indicated numbers on the outer peripheral surface 70 b of the second counter 70. Each protrusion 71 is engaged with the inner portion 35a of the feed claw 35 of the peripheral wall portion 32 of the lower body portion 30 at a position facing the one end portion 27a of the slit 27 when the lever 33 is rotated clockwise in the figure. Combined, the second counter 70 is counted down one by one. Further, the inner peripheral side of the lower surface of the second counter 70 is an annular inner peripheral stepped portion 72 that is notched inward, and on the lower side (back side) of the number “0” of the inner peripheral stepped portion 72. A triangular prism-shaped feed claw 73 is formed to project integrally. The feed claw 73 is positioned so as to oppose the blank portion of the plain “” of the first counter 60 and the projections 62 corresponding to the numbers “1” to “6” to the observation window 43 for displaying the remaining amount of medication on the cover 40. The first counter 60 is rotated so that the first counter 60 is counted down one by one and the projection 63 corresponding to the letter “X” of the first counter 60 is moved from the engagement position of each projection 62 by one. The first counter 60 is rotated so that “X0” is displayed instead of “0” when it is locked at the previous position and the remaining amount of medication is zero.

  As shown in FIGS. 2, 3, 11 to 18, the indicator 80 is formed in a semi-annular plate shape, and when the lever 33 is rotated counterclockwise in the figure, the lower main body portion. The flange 81 a of the one end 81 is engaged with the one end 56 a of the guide convex portion 56 of the counter plate 51 by being pressed by the outer portion 35 b of the feed claw 35 of the peripheral wall portion 30. At this time, as shown in FIG. 11, the inhalable display portion 83 provided on the other end portion 82 side of the indicator 80 is connected to the user through an elliptical viewing window 44 formed on the ceiling wall portion 41 of the cover 40. Can be seen directly. Further, when the lever 33 is rotated in the clockwise direction in the drawing, it is pressed by the feed claw 36 of the peripheral wall portion 32 of the lower body portion 30, and the indicator 80 is attached to the other end portion 56 b of the guide convex portion 56 of the counter plate 51. The flange 82a of the other end 82 is engaged. At this time, as shown in FIG. 14, an inhalable display portion 84 provided on the other end portion 82 side of the indicator 80 is connected to the user through an elliptical viewing window 44 formed on the ceiling wall portion 41 of the cover 40. Can be seen directly.

  As shown in FIG. 2, after the counter unit 50 is assembled by incorporating the first counter 60, the second counter 70, and the indicator 80 into the counter plate 51, the counter unit 50 is placed in the peripheral wall portion 41 of the cover 40. The powder medicine administration device 10 is assembled by fitting and fitting the cover 40 and the upper body portion 20 together.

  According to the powder medicine administration device 10 of the above embodiment, for example, the state where the counter unit 50 shown in FIG. 12 displays the remaining number of medication “20” is the state of the inhalation position where the lever 33 is in contact with the one end portion 27 a of the slit 27. (As shown in FIG. 5, the medicine receiving chamber 34 is in the discharge position). At this time, one end portion 81 of the indicator 80 is pressed against the outer portion 35 b of the feed claw 35 of the peripheral wall portion 32 of the lower main body portion 30, and one end portion of the indicator 80 is brought into contact with one end portion 56 a of the guide convex portion 56 of the counter plate 51. Since the 81 collar portion 81 a is engaged, the user can see the inhalable display portion 83 provided on the other end 82 side of the indicator 80 from the viewing window 44 of the cover 40. That is, the user understands that the powder medicine administration device 10 is in a state where the powder medicine M shown in FIGS. 4 and 5 can be inhaled.

  When the counter unit 50 shown in FIG. 12 displays the remaining number of medication “20”, as shown in FIG. 13, when the lever 33 starts to rotate clockwise, the peripheral wall portion 32 of the lower body portion 30 The inner portion 35a of the feed claw 35 abuts and presses the protrusion 71 in the vicinity of the number “8” of the second counter 70 to rotate the second counter 70 clockwise, and the feed claw 73 of the second counter 70 The first counter 60 is rotated clockwise by contacting and pressing the protrusion 62 in the vicinity of the number “2” of the first counter 60.

  Then, as shown in FIG. 14, when the lever 33 is rotated to the standby position corresponding to the other end 27 b of the slit 27, the remaining medication number “19” is displayed in the viewing window 43 for displaying the remaining medication amount on the cover 40. The user knows that the remaining number of doses is “19”. At this time, the feeding claw 36 of the peripheral wall portion 32 of the lower body portion 30 abuts and presses against the other end portion 82 of the indicator 80, and the other end portion 56 b of the guide convex portion 56 of the counter plate 51 is put on the other end of the indicator 80. The indicator 80 rotates clockwise until the collar portion 82a of the end portion 82 is engaged. As a result, as shown in FIG. 14, a non-inhalable display portion 84 provided on the other end portion 82 side of the indicator 80 is displayed on the viewing window 44 of the cover 40. From this display, the user knows that the lever 33 is in the standby position and the powder medicine administration device 10 is measuring the powder medicine M. From this state, when the user wants to inhale the powder medicine M, the lever 33 is rotated counterclockwise until it contacts the one end 27 a of the slit 27.

  As shown in FIG. 15, when the counter unit 50 starts rotating the lever 33 clockwise as shown in FIG. 16 from the state in which the counter unit 50 displays the remaining amount of medication “1”, the characters of the first counter 60 are displayed. Since the protrusion 63 corresponding to “X” protrudes largely outward from the blank portion of the plain “” of the first counter 60 and the protrusions 62 corresponding to the numbers “1” to “6”, the second counter 70. The feed claw 73 of the second counter 70 comes into contact with and presses the projection 63 near the letter “X” of the first counter 60 at a position immediately before the engagement position of the feed claw 73 and each projection 62. 1 Counter 60 is rotated clockwise. As a result, as shown in FIG. 16, when the second counter 70 is rotated to the number “0”, the first counter 60 is rotated from the blank “” blank portion to the position of the letter “X”, and the remaining number of medications is reduced. When it is zero, “X0” is displayed instead of “0”. At this time, as shown in FIGS. 18 and 19B, the locking projection 66 of the first counter 60 presses the body portion 54 b of the flexible arm 54 of the counter plate 51 outward, so that the flexible portion 54 is flexible. The flexible arm 54 is bent outward, and the flange portion 54 a of the flexible arm 54 is locked to the stopper claw 37 of the peripheral wall portion 32 of the lower body portion 30. By this locking, the peripheral wall portion 32 of the lower main body portion 30 cannot be rotated counterclockwise, and the operation of the lever 33 is locked.

  As described above, when the remaining amount of medication is zero, the remaining amount of medication is displayed as “X0” instead of “0” in the observation window 43 for displaying the remaining amount of medication on the cover 40, and “X” of “X0” is displayed. Since the user can instantly know that the inhalation is not possible, the user can easily recognize that the remaining amount of medication is zero and the inhalation of the powder medicine M cannot be performed. Can be prevented.

  Even if the user overlooks “X0”, which is the zero indication of the remaining number of medications, the lever 33 is locked by the lock mechanism K having a simple configuration and the lever cannot be operated. It is possible to surely recognize that there is, and it is possible to reliably prevent the dose of the medicine without the powder medicine M. Furthermore, the lever 33 can be provided with a function of locking the inhalation operation when the number of remaining medicines is zero with a small number of parts and at a low cost.

  FIG. 20 is a perspective view showing a counter plate of a counter unit used in the powder medicine administration device of the second embodiment of the present invention, FIG. 21 is a perspective view of the counter unit, and FIG. It is a top view which shows the principal part of the powder medicine administration device in the case of being in a position.

  As shown in FIGS. 20 to 22, the counter plate 51 ′ of the counter unit 50 ′ used in the powder medicine administration device 10 ′ of the second embodiment is restricted from counterclockwise rotation of the first counter 60. The stopper claw 58 ′ and the stopper claw 59 ′ for restricting the counterclockwise rotation of the second counter 70 are projected.

  As shown in FIGS. 20 and 22, an L-shaped stopper claw 58 ′ for restricting counterclockwise rotation of the first counter 60 is integrally formed in the recess 52 of the counter plate 51 ′. That is, when one end 58a of the stopper claw 58 'is engaged with the stopper surface 62a of each projection 62 of the first counter 60, the counterclockwise rotation of the first counter 60 is restricted, and the stopper claw The other end portion 58b of 58 'slides along the tapered surface 62b of each projection 62 of the first counter 60 so that the clockwise rotation of the first counter 60 is allowed.

  Further, as shown in FIGS. 20 to 22, an L-shaped stopper claw 59 ′ for restricting the counterclockwise rotation of the second counter 70 is integrally formed in the recess of the outer peripheral portion of the counter plate 51 ′. Yes. That is, when one end portion 59a of the stopper claw 59 'is engaged with the stopper surface 71a of each projection 71 of the second counter 70, the counterclockwise rotation of the second counter 70 is restricted, and the stopper claw The other end portion 59b of 59 'slides along the tapered surface 71b of each projection 71 of the second counter 70 so that the second counter 70 is allowed to rotate in the clockwise direction.

  Thus, by providing the L-shaped stopper claw 58 ′ in the recess 52 of the counter plate 51 ′, it is possible to more reliably prevent the counterclockwise rotation (reverse rotation) of the first counter 60. Further, by providing an L-shaped stopper claw 59 ′ on the outer periphery of the counter plate 51 ′, the counterclockwise rotation (reverse rotation) of the second counter 70 can be prevented more reliably.

  In addition, according to each said embodiment, although the number of the 10-digit counter was described to 60's, the 10-digit number of 10's to 50's, or 10's of 70's to 90's. You may use the counter which described the number of digits.

  In each of the above embodiments, the countdown method is used, but it is needless to say that the above embodiments can be applied to the countup method.

DESCRIPTION OF SYMBOLS 10 Powder medicine administration device 20 Upper body part 21b Lower surface 30 Lower body part 31a Upper surface 28 Drug storage chamber 28a Opening part (upper opening part)
26 Air passage 26d Discharge port 33 Lever 34 Drug receiving chamber 34a Small hole (drug receiving chamber)
34b Opening (lower opening)
35 Feeding Claw 37 Stopper Claw 50, 50 'Counter Unit 51, 51' Counter Plate 54 Flexible Arm 54a Hook 60 First Counter (Counter)
62, 63 Projection 66 Projection for locking 70 Second counter (counter)
71 Protrusion 73 Feeding claw 80 Indicator K Lock mechanism M Powder medicine B Discharge position (inhalation position)
R Standby position (weighing position)

Claims (3)

The upper opening formed in the lower surface in association with the relative slide by sliding the lower surface of the upper main body portion and the upper surface of the lower main body portion by relative sliding by lever operation of the upper main body portion and the lower main body portion. And a non-communication state in which the communication portion communicates with the medicine receiving chamber recessed in the upper surface and the non-communication state does not communicate, and the upper side from the medicine storage chamber formed in the upper body portion in the communication state The powder medicine is introduced into the medicine receiving chamber through the opening, and the powder medicine introduced into the medicine receiving chamber is scraped off by the relative sliding upper body, and the powder medicine is introduced by the relative slide. In the powder medicine administration device which moves the worn medicine receiving chamber from the standby position to the discharge position facing the air passage and discharges the powder medicine together with air,
A lock is provided that counts the number of operations of the lever when the medicine receiving chamber moves from the discharge position to the standby position, and locks the operation of the lever when the remaining amount of medication in the counter becomes zero Provided a mechanism ,
The counter is rotatably supported by a counter plate and displays a ten-digit number, and is rotatably supported by the counter plate around the first counter and is rotated by an operation of the lever. A second counter for displaying a one-digit number in conjunction with the first counter,
The lock mechanism is provided in a stopper claw provided in the lower main body rotated by the operation lever, a flexible arm having a collar provided in the counter plate, and provided in the first counter. And when the remaining dose of the first and second counters becomes zero, the protrusion of the first counter presses the flexible arm and the collar of the flexible arm A powder medicine administration device , wherein the operation of the lever is locked by being engaged with a stopper claw of the side main body . A powder drug administration device according to claim 1,
The second counter is provided with a plurality of protrusions that engage with a feed claw provided on the lower main body and rotate the second counter, and is engaged with a plurality of protrusions provided on the first counter. A feed claw for rotating the first counter, and a projection at a position opposite to the letter “X”, which is a display indicating that no medication can be dispensed, among the plurality of projections of the first counter. The protrusion amount is made larger than that of each of the other protrusions, and is engaged with the feeding claw of the second counter at a timing ahead of the other protrusions, and “X0” when the remaining amount of medication is zero. powder medicine administering device being characterized in that the so that displays and. A powder drug administration device according to claim 1 or 2,
A powder drug administration device , wherein the counter plate is provided with an indicator for switching whether the drug receiving chamber is in a discharge position or a standby position in conjunction with the operation of the lever .

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