Dry powder inhalers, related blister devices, and associated methods of dispensing dry powder substances and fabricating blister packages
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
A61M-015/00
A61M-016/00
B05D-007/14
B65D-083/06
출원번호
US-0434009
(2003-05-08)
발명자
/ 주소
Crowder, Timothy M.
Hickey, Anthony J.
Warden, Jeffrey A.
출원인 / 주소
Oriel Therapeutics, Inc.
대리인 / 주소
Myers Bigel Sibley &
인용정보
피인용 횟수 :
91인용 특허 :
141
초록▼
The present invention includes dry powder inhalers and associated multi-dose dry powder packages for holding inhalant formulated dry powder substances and associated fabrication and dispensing methods. The multi-dose package can include a platform body comprising at least one thin piezoelectric poly
The present invention includes dry powder inhalers and associated multi-dose dry powder packages for holding inhalant formulated dry powder substances and associated fabrication and dispensing methods. The multi-dose package can include a platform body comprising at least one thin piezoelectric polymer material layer defining at least a portion of a plurality of spatially separated discrete elongate dry powder channels having an associated length, width and height; and a metallic material attached to selected portions of the piezoelectric polymer material including each of the regions corresponding to the elongate dry powder channels to, in operation, define active energy releasing vibratory channels. In operation, the elongate channels can be selectively individually activated to vibrate upon exposure to an electrical input.The dry powder inhaler includes an elongate body having opposing first and second outer primary surfaces with a cavity therebetween and having opposing top and bottom end portions and a multi-dose sealed blister package holding a plurality of discrete meted doses of a dry powder inhalable product located in the cavity of the elongate body. The inhaler also includes an inhalation port formed in the bottom end portion of the elongate body, the inhalation port configured to be in fluid communication with at least one of the discrete meted doses during use and a cover member that is pivotably attached to the elongate body so that it remains attached to the body during normal operational periods of use and moves to a first closed position to overlie the inhalation port at the bottom end portion of the body during periods of non-use and moves to a second open position away from the inhalation port during periods of use to allow a user to access the inhalation port.
대표청구항▼
1. A multi-dose dry powder drug package for holding pharmaceutical grade formulations of inhalable dry powder substances, comprising:a platform body comprising a plurality of sealed blisters thereon and at least one thin piezoelectric polymer material portion in communication with at least one of th
1. A multi-dose dry powder drug package for holding pharmaceutical grade formulations of inhalable dry powder substances, comprising:a platform body comprising a plurality of sealed blisters thereon and at least one thin piezoelectric polymer material portion in communication with at least one of the sealed blisters, wherein the sealed blisters comprise a respective at least one of a plurality of spatially separated discrete elongate dry powder channels having an associated length, width and height, wherein the elongate channels have a first rearward curvilinear portion that terminates into a second forward curvilinear portion, and wherein the second curvilinear portion has a smaller perimeter and is disposed downstream of the first curvilinear portion in the direction of flow; a conductive material attached to the piezoelectric polymer material to define at least one active energy releasing vibratory member, and an input signal generating circuit that is operatively associated with the piezoelectric polymer material, wherein the input generating circuit comprises a processor configured to selectively transmit an amplitude modulated non-linear input signal to the piezoelectric polymer material, and wherein the amplitude modulated non-linear signal comprises a plurality of superimposed frequencies, the frequencies corresponding to a priori flow characteristic frequencies of a dry powder held in a respective blister. 2. A multi-dose dry powder package for holding pharmaceutical grade formulations of inhalable dry powder substances, comprising:a platform body comprising a plurality of sealed blisters thereon and a piezoelectric polymer material forming at least a portion of each of the sealed blisters, wherein the sealed blisters comprise a respective at least one of a plurality of spatially separated discrete elongate dry powder channels having an associated length, width and height; and a conductive material attached to selected portions of the piezoelectric polymer material including regions corresponding to the blisters to define active energy releasing vibratory channels, wherein, in operation, the blisters are adapted to be selectively activated to vibrate upon receipt of an electrical input, wherein the elongate channels have a first rearward curvilinear portion that terminates into a second forward curvilinear portion, and wherein the second curvilinear portion has a smaller perimeter and is disposed downstream of the first curvilinear portion in the direction of flow. 3. A package according to claim 2, wherein each blister has an elongate configuration with a quantity of inhalable dry powder therein, wherein each sealed blister comprises a floor and a ceiling, the ceiling and floor configured to encase the dry powder in a respective elongate dry powder channel, and wherein the ceiling has an outwardly extending protrusion positioned on a forward portion of the elongate channel that terminates into a substantially planar portion over the rearward portion of the elongate channel.4. A package according to claim 2, wherein the platform body is configured as a thin sheet of scrolled flexible material rolled about two spaced-apart tension rods.5. A package according to claim 2, in combination with a second multi-dose dry powder package comprising:a platform body comprising piezoelectric polymer material layer forming at least a portion of a plurality of spatially separated blisters formed by discrete elongate dry powder channels having an associated length, width and height; and a conductive material attached to selected portions of the piezoelectric polymer material including each of the regions corresponding to the elongate dry powder channels to define active energy releasing vibratory channels, and wherein, in operation, the elongate channels are adapted to selectively individually be activated to vibrate upon receipt of an electrical input, wherein the first and second dry powder packages are held in proximately-spaced stacked relationship during use. 6. A package according to claim 5, further comprising a first dry powder substance disposed in the blisters of the first package and a second different dry powder substance disposed in the blisters of the second package, and wherein, during use, both of the first and second substances are substantially concurrently dispensed to the patient.7. A package according to claim 5, wherein the first and second packages are held so that centers thereof are aligned.8. A package according to claim 5, wherein the first and second packages are held so that centers are offset.9. A package according to claim 2, wherein the blisters are configured with elongate dry powder channels that, in operation, define a portion of an inhalation dry powder flow channel, and wherein the package platform further comprises a plurality of airflow and/or differential pressure sensors, wherein the sensors are selectably activatable and configured such that, during us, the sensors provide data used to determine user airflow rate in situ during the activation of a respective channel.10. A package according to claim 2, wherein the blisters are elongate channels with an associated floor, ceiling, and opposing sidewalls, and wherein the sidewalls, floor, and ceiling of the elongate channels comprise the piezoelectric polymer.11. A package-according to claim 2, wherein the blisters have a floor that slopes downwardly in the direction of outward flow.12. A package according to claim 2, wherein the blisters have a depth that increases in the forward flow direction.13. A package according to claim 2, wherein the blisters have a depth that decreases in the forward flow direction.14. A package according to claim 1, wherein the blisters have respective elongate channels that comprise a powder basin with a depth that is greater than rearward and forward portions of the channel.15. A package according to claim 2, wherein the blisters have respective elongate channels with a cover portion that overlies and seals a quantity of dry powder held therein, wherein the cover includes a plurality of arch portions that extend outwardly away from the elongate channels, a respective one of the arch portions being positioned over a forward portion of a corresponding one of the elongate channels.16. A package according to claim 2, wherein the blisters have an associated ceiling that is scored at an end portion thereof to preferentially predispose the end portion to split upon exposure to a blunt pressure or force.17. A multi-dose dry powder package according to claim 2, further comprising an input signal generating circuit that is operatively associated with the piezoelectric polymer material, wherein, in operation, the input generating circuit comprises a processor configured to selectively transmit an amplitude modulated non-linear input signal to the piezoelectric polymer material, and wherein the amplitude modulated non-linear signal comprises a plurality of superimposed frequencies, the frequencies corresponding to a priori flow characteristic frequencies of a dry powder held in a respective blister.18. A package according to claim 17, wherein the non-linear input signal is a low energy input signal having a plurality of superpositioned modulating frequencies, and wherein the non-linear input signal comprises frequencies in the range of between about 10 Hz to 1000 kHz.19. A package according to claim 17, wherein the non-linear input signal comprises carrier frequencies in the range of between about 15 kHz to 50 kHz.20. A package according to claim 1, wherein the non-linear input signal is a low energy input signal having a plurality of superpositioned modulating frequencies, and wherein the non-linear input signal comprises frequencies in the range of between about 10 Hz to 1000 kHz.21. A package according to claim 1, wherein the non-linear input signal comprises carrier frequencies in the range of between about 15 kHz to 50 kHz.
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