A powder inhalator comprising: a housing; a supply member for holding a powdered drug for a large number of doses and having a drug discharge aperture at its bottom surface; a drug carrier, to which the powdered drug is supplied from the drug discharge aperture of the supply member, and having on it
A powder inhalator comprising: a housing; a supply member for holding a powdered drug for a large number of doses and having a drug discharge aperture at its bottom surface; a drug carrier, to which the powdered drug is supplied from the drug discharge aperture of the supply member, and having on its upper surface a measuring recess that has a volume equivalent to one dose of the drug; and an operation member disposed so as to move freely back and forth, and operate the drug carrier; the drug carrier moving in contact with the bottom surface of the supply member to carry the powdered drug loaded into the measuring recess from the position of the drug discharge aperture to an air inhalation channel, wherein the drug carrier is disposed slidably so that the measuring recess moves in a circular manner by sliding the drug carrier.
대표청구항▼
The invention claimed is: 1. A powder inhalator comprising: a housing; a supply member for holding a powdered drug for a large number of doses and having a drug discharge aperture at its bottom surface; a drug carrier having a flat upper surface, to which the powdered drug is supplied from the drug
The invention claimed is: 1. A powder inhalator comprising: a housing; a supply member for holding a powdered drug for a large number of doses and having a drug discharge aperture at its bottom surface; a drug carrier having a flat upper surface, to which the powdered drug is supplied from the drug discharge aperture of the supply member, and having on its flat upper surface measuring recess that has a volume equivalent to one dose of the drug; and an operation member disposed so as to move freely back and forth, and operate the drug carrier, the drug carrier moving in contact with the bottom surface of the supply member to carry the powdered drug loaded into the measuring recess from the position of the drug discharge aperture to an air inhalation channel, wherein the drug carrier is supported pivotably in the housing so that the measuring recess reciprocates in a circular manner, relative to the drug discharge aperture of the supply member, by pivoting the drug carrier; wherein the flat surface is raised to form an arc-shaped sliding portion, and at one end of the flat surface the measuring recess is positioned, thereby the sliding portion alone of the drug carrier contacts the bottom surface of a surrounding portion of the drug discharge aperture of the supply member when the measuring recess moves in the circular manner. 2. The powder inhalator according to claim 1 wherein the measuring recess is located at a position between the center of the pivotal movement of the drug carrier and the point at which the operation member engages the drug carrier. 3. The powder inhalator according to claim 2, wherein the operation member is a pushbutton and the operation member is pressed to move the measuring recess into the air inhalation channel. 4. The powder inhalator according to claim 3, wherein electrical conductivity is imparted to the supply member, the drug carrier and the operation member by adding a conductive filler, so as to leak static electricity. 5. The powder inhalator according to claim 4, wherein the measuring recess is a spherical concave shape and provided with a bottom. 6. The powder inhalator according to claim 3, wherein the measuring recess is a spherical concave shape and provided with a bottom. 7. The powder inhalator according to claim 2, wherein electrical conductivity is imparted to the supply member, the drug carrier and the operation member by adding a conductive filler, so as to leak static electricity. 8. The powder inhalator according to claim 7, wherein the measuring recess is a spherical concave shape and provided with a bottom. 9. The powder inhalator according to claim 2, wherein the measuring recess is a spherical concave shape and provided with a bottom. 10. The powder inhalator according to claim 1 wherein the operation member is a pushbutton and the operation member is pressed to move the measuring recess into the air inhalation channel. 11. The powder inhalator according to claim 10, wherein electrical conductivity is imparted to the supply member, the drug carrier and the operation member by adding a conductive filler, so as to leak static electricity. 12. The powder inhalator according to claim 11, wherein the measuring recess is a spherical concave shape and provided with a bottom. 13. The powder inhalator according to claim 10, wherein the measuring recess is a spherical concave shape and provided with a bottom. 14. The powder inhalator according to claim 1, wherein electrical conductivity is imparted to the supply member, the drug carrier and the operation member by adding a conductive filler, so as to leak static electricity. 15. The powder inhalator according to claim 14, wherein the measuring recess is a spherical concave shape and provided with a bottom. 16. The powder inhalator according to claim 1, wherein the measuring recess is a spherical concave shape and provided with a bottom.
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이 특허에 인용된 특허 (10)
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Smutney, Chad C.; Adamo, Benoit; Polidoro, John M.; Kinsey, P. Spencer; Overfield, Dennis; Sahi, Carl; Billings, Christine; Marino, Mark T., Dry powder drug delivery system and methods.
Smutney, Chad C.; Kinsey, P. Spencer; Sahi, Carl R.; Adamo, Benoit; Polidoro, John M.; McLean, Scott; Overfield, Dennis; Bryant, Anthony, Dry powder inhaler and system for drug delivery.
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