Multiple single-dose inhaler for medicaments in powder form
First Claim
1. A multiple-dose inhaler (10) for administering doses of medicament to a patient in very fine or micronized powder form, each of said doses being contained in an individual blister (30) in a blister sheet (60), the inhaler comprising means (18) for bringing the individual blisters (30) of the blister sheet (60) one after another into a piercing position, means (62) for piercing the individual blister (30) when in the piercing position, a delivery channel (82) through which the patient exerts an inhalation action, and an air intake (28) which communicates with said delivery channel when a blister has been pierced, a released dose of medicament being removable by an air stream generated by the inhalation action, said blister sheet (60) being in the form of a strip with the blisters (30) aligned, a connection channel (22) of rectilinear axis is provided coaxial with said delivery channel (82), said connection channel (22) connecting said delivery channel (82) to said air intake (28), the individual blister (30) when in its piercing position being arranged between said delivery channel (82) and said connection channel (22), within said connection channel (22) in proximity to an end (40) thereof adjacent to the blister when in its piercing position there being provided a cup (46) coaxial with said connection channel (22), the concavity of said cup facing said blister, said cup (46) having smaller dimensions than the dimensions of said connection channel (22) at the position occupied by said cup.
1 Assignment
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Accused Products
Abstract
An inhaler (10) of the multiple single-dose type for administering doses of medicament in very fine or micronized powder form contained in blisters (30) in a blister sheet (60) comprises means (18) for bringing the blisters (30) of the blister sheet one after another into a piercing position, means (62) for piercing the individual blister, a delivery channel through which the patient exerts the inhalation action, and an air intake which communicates with the delivery channel (82) when a blister has been pierced. The blister sheet (60) is in the form of a strip with the blisters (30) aligned. A connection channel (22) is provided to connect the delivery channel (82) to the air intake (28). The blister (30) when in its piercing position is interposed between the delivery channel (82) and the connection channel (22). In this latter there is provided a cup (46) coaxial with the connection channel (22) and with its concavity facing the blister in the piercing position.
199 Citations
9 Claims
- 1. A multiple-dose inhaler (10) for administering doses of medicament to a patient in very fine or micronized powder form, each of said doses being contained in an individual blister (30) in a blister sheet (60), the inhaler comprising means (18) for bringing the individual blisters (30) of the blister sheet (60) one after another into a piercing position, means (62) for piercing the individual blister (30) when in the piercing position, a delivery channel (82) through which the patient exerts an inhalation action, and an air intake (28) which communicates with said delivery channel when a blister has been pierced, a released dose of medicament being removable by an air stream generated by the inhalation action, said blister sheet (60) being in the form of a strip with the blisters (30) aligned, a connection channel (22) of rectilinear axis is provided coaxial with said delivery channel (82), said connection channel (22) connecting said delivery channel (82) to said air intake (28), the individual blister (30) when in its piercing position being arranged between said delivery channel (82) and said connection channel (22), within said connection channel (22) in proximity to an end (40) thereof adjacent to the blister when in its piercing position there being provided a cup (46) coaxial with said connection channel (22), the concavity of said cup facing said blister, said cup (46) having smaller dimensions than the dimensions of said connection channel (22) at the position occupied by said cup.
Specification