JP2012192112A - Powder medicine dosing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a powder medicine dosing device capable of improving the capability of leveling a powder medicine while improving the humidity resistance by securing excellent sealing between a medicine receiving part and a medicine storage chamber.SOLUTION: The powder medicine dosing device includes: a sliding member 2 slidably housed and held inside a casing 1 and having a plurality of dimple-like recess grooves 19a as medicine receiving parts 19 on an upper surface 15b; a holder member 3 disposed in such a state as layered from above on the sliding member and having the medicine storage chamber 23; and an opening 28 formed in the holder member to make the medicine storage chamber 23 appropriately communicate with the medicine receiving parts 19. A sealing member 45 is disposed in the rim of an opening of the holder member. When the sliding member is slid from a stand-by position to a use position, the powder medicine M between the medicine storage chamber and the medicine receiving parts is leveled off by the sealing member.

Description

  The present invention relates to an improved technique for a powder drug administration device.

  Various inventions of this type of powder medicine administration device have been conventionally provided, and one of them is described in Patent Document 1 below.

  In this conventional powder medicine administration device, a packing is provided on the slider for scraping, and the packing comes into contact with the sealing surface only when the powder medicine is in the filling position. Is automatically actuated via the spring force of the spring member.

Special table 2010-512882 gazette

  However, in the conventional powder medicine administration device, since the time when the packing is not in contact with the seal surface is generated, the airtightness of the medicine storage chamber or the like becomes insufficient, and the reliability of moisture resistance may be lowered. There is.

  The present invention has been devised in view of the technical problem of the conventional powder drug administration device, while ensuring good sealing between the drug receiving part and the drug storage chamber and improving the moisture resistance. An object of the present invention is to provide a powder medicine administration device capable of improving the wear resistance of the powder medicine.

The present invention includes a sliding member that is slidably housed and held inside a casing and has a medicine receiving portion, and a holding member 3 that is arranged in a superposed state on the sliding member from above and has a medicine storage chamber. A suction port capable of inhaling the powder medicine from the medicine receiving portion at a use position by sliding of the sliding member, and the medicine at a standby position formed in the holding member 3 by sliding of the sliding member. An opening that allows the storage chamber and the medicine receiver to communicate with each other;
When a seal member is provided at the hole edge of the opening of the holding member 3 and the slide member is slid from the standby position to the use position, the seal member causes the gap between the drug reservoir and the drug receiver. It is characterized by scraping off the powder drug.

  According to the present invention, since the medicine storage chamber is sealed by the sealing member at any sliding position of the sliding member, a good sealing action is always obtained, and the powder medicine in the medicine receiving portion is obtained by the sealing member. The fraying property with respect to is improved.

It is principal part sectional drawing of the powder medicine administration device concerning the present invention. It is an exploded perspective view showing an embodiment of a powder medicine administration device concerning the present invention. It is an overhead view which shows the assembly state of each component in the powder medicine administration device of this embodiment. It is a top view which shows the sliding member provided to this embodiment. It is a cross-sectional view which shows the holding member provided to this embodiment. It is a bottom view of the holding member provided for this embodiment. It is a side view of the holding member provided for this embodiment. The action state of the powder medicine administration device is shown. A is a plan view showing the sliding member in the standby position with the cover removed, and B is the plan view showing the sliding member in the use position with the cover removed. FIG.

  Hereinafter, embodiments of a powder medicine administration device according to the present invention will be described in detail with reference to the drawings.

  That is, as shown in FIGS. 2 and 3, the powder drug administration device of the present invention includes a substantially circular casing 1, a sliding member 2 housed and disposed on the lower side inside the casing 1, It is mainly composed of a holding member 3 housed and arranged in an upper part of the sliding member 2 and a mouthpiece 4 having a substantially rectangular plane provided integrally with the front end portion of the casing 1.

  The casing 1 has a lower casing body 5 integrally formed of a synthetic resin material having a substantially U-shaped cross section and a substantially U-shaped cross section that closes the upper end opening of the casing body 5. And an upper cover 6 integrally formed of a synthetic resin material.

  The casing body 5 has a peripheral wall 5b erected from an outer peripheral edge of a substantially circular bottom wall 5a, and a storage chamber 7 is formed inside the casing main body 5. The bottom wall 5a is integrally provided with a small-diameter cylindrical shaft portion 9 at a substantially central position, and a pair of spring portions serving as biasing means at positions spaced apart from the shaft portion 9 in the radial direction. 10 and 10 are provided substantially along the circumferential direction. The shaft portion 9 has an inner portion 9a formed in a hollow shape.

  Each of the pair of spring portions 10 is formed in an elongated plate shape having a predetermined thickness, and is formed by cutting and raising the bottom wall 5a when forming the casing body 5, and is integrated with the bottom wall 5a. A tip portion 10b is formed so as to rise upward from the base portion 10a, and the tip portion 10b side is elastically deformed in the vertical direction with the base portion 10a as a fulcrum to generate a spring force. Further, spherical protrusions 10d that press the lower surface of the sliding member 2 are integrally formed on the upper surface of the tip portion 10b.

  In addition, a pair of arc-shaped support walls 11 are erected in the circumferential gap between the spring portions 10 and 10 of the bottom wall 5a. Each of the support walls 11 is formed so that the height thereof is lower than the tip portion 10b (projection portion 10d) of the spring portion 10, and when the sliding member 2 is abutted and supported by the upper end edges 11a, The height is set such that the spring force of each of the spring portions 10 and 10 can be applied.

  The peripheral wall 5b is set to a height slightly lower than the height obtained by superimposing the sliding member 2 and the holding member 3, and locking claws 13 are provided at three positions on the upper edge at equal intervals in the circumferential direction. In addition, a notch 14 is formed in a part of one side. The notch 14 is formed to have a predetermined length in the circumferential direction, and a later-described lever portion 18 of the sliding member 2 is penetrated to guide in the circumferential direction. The one end edge 14a and the other end edge 14b function as a stopper for restricting the maximum rotation position of the lever portion 18.

  As shown in FIG. 3, the sliding member 2 includes a disc portion 15 placed on the upper portions of the spring portions 10 and the support walls 11 of the casing body 5, and a substantially center of the disc portion 15. A rotation hole 16 through which the shaft portion 9 is inserted, an arcuate guide piece 17 integrally formed in the side portion of the disc portion 15 along the circumferential direction, and the guide piece 17 It is mainly composed of a rectangular lever portion 18 projecting radially outward from a substantially central position in the circumferential direction of the outer peripheral edge.

  The disc portion 15 has a medicine receiving portion 19 formed on a flat upper surface 15a. The medicine receiving portion 19 is formed by assembling six dimple-shaped small-diameter grooves 19a in a substantially annular region (dashed line), and the powder medicine M is used once with the total volume of these grooves 19a. It is set to be the amount of suction of one time.

  The guide piece 17 is formed to have a substantially rectangular cross section, and its lower surface is slidably guided to the bottom surface of the casing body 5, and the inner peripheral surface side of the upper portion 17 a is the outer peripheral surface of the holding member 3. A sliding guide is provided.

  As shown in FIG. 3, the lever portion 18 is formed between the notch portion 14 and a lower end edge of a projecting piece 6 c, which will be described later, facing the cover 6 when the sliding member 2 is assembled to the casing body 5. It protrudes outside from the slit-shaped lever window 20 formed in the above. Further, the lever portion 18 is configured such that the maximum rotation position of the sliding member 2 is restricted by the base end portion coming into contact with both end edges 14 a and 14 b of the notch portion 14.

  As shown in FIGS. 2 and 4 to 8, the holding member 3 includes a disk-shaped substrate 21 disposed in contact with the upper surface 15 b of the disk portion 15 of the sliding member 2, and substantially the substrate 21. A through-hole formed in a central position and through which the shaft portion 9 is inserted; a medicine storage chamber 23 provided integrally on a circumferential upper surface of the substrate 21 avoiding the shaft insertion hole 22; The desiccant storage chamber 25 provided adjacent to the circumferential side portion of the drug storage chamber 23 via the partition wall 24 and integrally provided at a position opposite to the desiccant storage chamber 25 of the drug storage chamber 23. The drug passage portion 26 is mainly configured.

  As shown in FIGS. 5, 6, and 8, the substrate 21 appropriately communicates the drug storage chamber 23 and the drug receiving portion 19 of the sliding member 2 at a position corresponding to the drug storage chamber 23. An opening 28 is formed, and this opening 28 is formed in the shape of a long hole in the vicinity of the inner surface of the inner peripheral wall 29 of each drug storage chamber 23 along the circumferential direction. In addition, a lower end opening 38a of a communication path 38, which will be described later, communicates with the medicine receiving portion 19 when the sliding member 2 rotates and slides to the use position on the side of the medicine passage portion 26 of the opening 28. Is formed.

  The medicine storage chamber 23 and the desiccant storage chamber 25 are formed in a crescent shape as a whole by the inner peripheral wall 29, the outer peripheral wall 31, and the upper wall 32 along the circumferential direction around the substrate 21 and the shaft insertion hole 22. And is separated by the partition wall 24 provided at a substantially central position in the circumferential direction.

  The medicine storage chamber 23 is formed to have a size that allows a predetermined amount of powder medicine to be stored. As shown in FIG. 1, the entire inner wall surface 33 includes the opening 28 and the medicine receiver. It is formed in a taper shape that is inclined downward toward the portion 19.

  Further, as shown in FIG. 2, a circular first filling port 34 for filling the powder medicine M is formed on the upper wall 32 of the medicine storage chamber 23. The first filling port 34 is closed by a cap 35 after the powder medicine M is filled. Further, as shown in FIG. 7A, the medicine storage chamber 23 is located on the right end side of the opening 28, that is, on the opposite side to the use position of the opening 28, in the standby position of the sliding member 2 described later. Is set to

  The desiccant storage chamber 25 is filled with a suitable amount of, for example, silica gel granules as a desiccant from the second filling hole 36 and is closed by a cap 37, and is not shown in the figure provided in the partition wall 24. The ventilating means communicates with the medicine storage chamber 23.

  The drug passage section 26 is formed in a communication path 38 formed in a cylindrical wall 30 rising substantially vertically from the substrate 21, and in a cylindrical wall 39 extending in a radial direction from the upper end side portion of the communication path 38. The suction passage 40 is formed and communicates with the communication passage 38 and the suction port 4 a in the mouthpiece 4.

  The inside of the tubular wall 30 is separated into two front and rear passage portions by a diametrical separating plate 30a, and the half-moon shaped upper end opening of one passage portion of the communication passage 38 on the tubular wall 30 side is closed. The upper end opening 38b of the passage portion is formed as a half-moon shaped air hole on the other side closed by the wall 41, and the air hole is sucked from the medicine receiving portion 19 through the lower end opening 38a of the communication passage 38. The powdered medicine M stirs the air in the communication passage 38 to improve the suction property.

  As shown in FIGS. 2 and 3, the cover 6 includes an upper wall 6a that is formed in a substantially circular shape like the casing body 5, and a peripheral wall 6b that extends downward from the outer peripheral edge of the upper wall 6a. And three rectangular locking holes (not shown) for locking the locking claws 13 of the casing body 5 are formed at predetermined positions in the lower circumferential direction of the peripheral wall 6a. Further, on one side of the peripheral wall 6a, the projecting piece 6c that forms the lever window 20 together with the notch portion 14 when integrally fitted to the casing body 5 is integrally formed.

  As shown in FIG. 1, an annular fitting groove 44 along the hole edge is formed in the vicinity of the hole edge of the opening portion 28 of the holding member 3, and FIGS. As shown in the figure, an annular seal member 45 is continuously arranged and fixed in the fitting groove 44.

  The fitting groove 44 is formed in a substantially rectangular shape with a substantially rectangular cross section. On the other hand, the seal member 45 has a base portion 45a formed in a substantially rectangular cross section by a thermoplastic elastomer, which is a relatively soft synthetic resin material, fitted and fixed to the fitting groove 44, and fitted into the fitting groove. A lower end 45b protruding from 44 and abutting on the upper surface of the disk portion 15 is formed in an arc shape in cross section, and a tip edge 45c is elastically contacted with the upper surface of the disk portion 15 in a line contact state at all times.

  Hereinafter, the operation of the present embodiment will be described. First, when the sliding member 2 is at the standby position shown in FIG. 8A, that is, when the lever portion 18 is pulled to the maximum forward position in the clockwise direction, the medicine receiving portion 19 is inserted through the opening 28. It is in a position facing the drug storage chamber 23 in communication. Therefore, the powder medicine M is attached to the upper surface 15b of the disk portion 15 around each concave groove 19a of the medicine receiving portion 19 and each concave groove 19a facing the opening portion 28 through the opening portion 28.

  Thereafter, when the powder medicine administration device is used, as shown in FIG. 8B, when the lever portion 18 is rotated to the maximum rearward position in the counterclockwise direction via the lever window 20, the entire sliding member 2 is moved. Is rotated counterclockwise about the shaft portion 9 and the upper surface 15b of the disk portion 15 is rotated while being in sliding contact with the leading edge 45c of the seal member 45.

  As a result, the powder medicine M contained in each concave groove 19a is scraped cleanly at the leading edge 45c of the seal member 45, and an appropriate amount of the powder medicine M remains in each concave groove 19a.

  Thereafter, when the patient inhales the powder medicine M in each concave groove 19a from the mouthpiece 4, the powder medicine M is uniformly dispersed and stabilized without a sense of incongruity because it is sufficiently stirred by air in the communication path 38. A suction action is obtained.

  As described above, in this embodiment, the powder medicine M in each concave groove 19a of the medicine receiving portion 19 is not worn off at the hole edge of the opening 28 but is worn off by the seal member 45. The accuracy becomes high, and it becomes possible to always secure an appropriate amount of the powder medicine M in each concave groove 19a. In particular, since the powder medicine M is scraped off at the front edge 45c of the seal member 45, the scraping accuracy is further increased.

  In addition, the sliding member 2 is pushed up by the spring force of each of the spring portions 10, and the upper surface 15 b of the disc portion 15 comes into close contact with the entire tip edge 45 c of the seal member 45 with an appropriate pressure contact force. For this reason, when the sliding member 22 slides from the standby position to the operating position, the scraping action of the powder medicine M by the seal member 45 is improved.

  Further, the seal member 45 sufficiently increases the airtightness around the medicine reservoir 23 and the opening 28 in the standby state, so that the moisture resistance is improved.

  In particular, since the seal member 45 is formed of a relatively soft synthetic resin material, the adhesion of the seal member 45 to the upper surface 15b of the disk portion 15 is improved, and thus moisture resistance is further improved.

  In addition, since the desiccant storage chamber 25 is filled with silica gel granules as a desiccant, the moisture resistance effect of the sealing member 45 is combined with the moisture resistance effect of the powder drug M over a long period of time. be able to.

  Further, the sliding member 2 is pushed up by the spring force of each of the spring portions 10, and the upper surface 15 b of the disc portion 15 is in close contact with the entire leading edge 45 c of the seal member 45 with an appropriate pressure contact force. For this reason, the sealing performance of the sealing member 45 is improved, and the airtightness around the opening 28 is further increased, and the moisture resistance is improved.

  Further, since the powder medicine stored in advance in the medicine storage chamber 23 automatically falls in the direction of the medicine receiving portion 19 along the tapered surface of the inner wall surface 33, the fluidity to the medicine receiving portion 19 is excellent. Become. As a result, the powder medicine M can be always supplied promptly into each concave groove 19a, and the powder medicine M can be used up to the end without remaining in the medicine reservoir 23.

  Further, in the present embodiment, the sliding member 2 is always stably supported by the pair of support walls 11 provided between the pair of spring portions 10, and the spring force of the spring portion 10 is applied to the sliding member. 2 can be transmitted stably and effectively.

  In addition, since each of the spring portions 10 is formed integrally with the casing body 5, it is easier to manufacture and eliminates the need for assembling work as compared with the case where it is provided separately. Can be planned.

  In addition, since the medicine storage chamber 23, the desiccant storage chamber, and the medicine passage portion 26 are integrally provided on the substrate 21, these manufacturing and assembly operations are easy.

  The present invention is not limited to the configuration of the above embodiment, and for example, the material of the seal member 45 can be changed to a harder or softer material. Further, for example, the urging member is not limited to the spring portion 10, and a coil spring, an annular rubber material, or the like can be used.

  Further, the urging member is not limited to the spring portion 10, and a coil spring, a wave spring, a disc spring, an annular rubber material, or the like can be used.

The technical ideas of the invention other than the claims ascertained from the embodiment will be described below.
[Claim a] The powder drug administration device according to any one of claims 1 to 3, wherein a lower end portion of the seal member which is in contact with the upper surface of the sliding member is formed in a circular arc shape in cross section.

According to this invention, since the tip edge of the lower end portion of the seal member is elastically contacted with the upper surface of the sliding member in a line contact state, the upper surface of the medicine receiving portion can be scraped with high accuracy.
[B] The powder drug administration according to any one of claims 1 to a, wherein an inner wall surface of the drug reservoir chamber is formed in a tapered shape toward the drug receiving portion. vessel.

According to this invention, since the powder medicine stored in advance in the medicine storage chamber automatically falls in the direction of the medicine receiving section along the tapered surface of the inner wall surface, the fluidity to the medicine receiving section is good. Become. As a result, the powdered medicine can be supplied to the medicine receiving part promptly at all times, and the powdered medicine can be used up to the end without remaining.
[Claim c]
The biasing means is formed by cutting and raising the bottom wall of the casing, and is configured by a spring portion that biases the sliding member toward the holding member. The powder drug administration device according to Item.

According to the present invention, since the spring portion is formed by cutting and raising the bottom wall of the casing body, it is easy to manufacture compared with the case where another part is provided, and the assembly work is not required, so that the cost can be reduced. Can be achieved.
[Claim d]
The sliding member is rotatably held on a shaft portion erected on the bottom wall of the casing while the holding member is coaxial with the sliding member on the upper surface of the sliding member via the shaft portion. The powder medicine administration device according to any one of claims 1 to d, which is disposed above.

DESCRIPTION OF SYMBOLS 1 ... Casing 2 ... Sliding member 3 ... Holding member 4 ... Mouthpiece 5 ... Casing main body 6 ... Cover member 9 ... Shaft part 10 ... Spring part (biasing means)
DESCRIPTION OF SYMBOLS 11 ... Support wall 15 ... Disk part 15b ... Upper surface 19 ... Drug receiving part 19a ... Groove 21 ... Substrate 23 ... Drug storage chamber 24 ... Partition 25 ... Desiccant storage chamber 28 ... Opening 44 ... Mating groove 45 ... Seal Element

Claims (3)

A sliding member that is slidably accommodated inside the casing and has a medicine receiving portion;
A holding member disposed in a superposed state from above on the sliding member, and having a drug reservoir;
A suction port capable of inhaling powder medicine from the medicine receiving portion at a use position by sliding of the sliding member;
An opening that is formed in the holding member and communicates the drug storage chamber and the drug receiver at a standby position by sliding of the sliding member;
A seal member is provided at the hole edge of the opening of the holding member,
The powder medicine administration device, wherein when the sliding member is slid from the standby position to the use position, the powder medicine between the medicine reservoir and the medicine receiving portion is scraped off by the seal member.   The powder drug administration device according to claim 1, wherein the seal member is continuously provided along a hole edge shape of the opening and is formed of a soft material.   The powder medicine administration device according to claim 1 or 2, further comprising an urging means for urging the holding member and the sliding member in a direction in which the holding member and the sliding member abut each other.

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