Abstract: A dose setting mechanism for a medicament delivery device includes a tubular housing having threads on its inner surface, a first window, a second window, and at least one surface opening; a tubular dose limiting member having a first thread segment on its outer circumference for the threads on the housing's inner surface, first indicia on its outer circumference, a stop surface, and equidistant protrusions on its outer circumference; a tubular dose setting member; and a removable lock member attached to the housing. The housing is coaxially arranged inside the dose limiting member and includes a second thread segment for the housing's threads, second indicia, and a dose setting knob protruding through the housing. The lock member includes at least one elongated rib on its inner circumferential surface for interacting with the protrusions for locking the dose limiting member in position when the lock member is attached to the housing.

Abstract: A dose reset mechanism for a medicament delivery device with a housing and a medicament container includes a dose setting member in the housing for setting a dose when it is rotated and for resetting the dose when it is rotated in the opposite direction. The dose setting member has a drive member connected to a plunger rod such that when the drive member rotates, the rod moves axially; and a connection member between the dose setting member and the drive member. A ratchet mechanism enables the connection member to rotate when the dose setting member rotates for setting a dose but not to move in the opposite direction. At least one dose reset member and at least one blocking member are connected to the ratchet mechanism such that the connection member and drive member are released when a dose knob is turned in the opposite direction.

Abstract: The present invention relates to a medicament delivery device comprising an elongated housing arranged to contain a medicament container which medicament container contains a number of doses; a dose counter mechanism comprising a dose drum arranged with dose indicia on its outer surface and visible through a window on said housing; a rotatable driver connected to said dose drum; a plunger rod arranged to act on said medicament container for expelling a dose of medicament; an actuation mechanism connected to said rotatable driver and to said plunger rod when said medicament delivery device is actuated; wherein said dose drum is arranged with internal threads, in engagement with corresponding threads on said driver, wherein said threads have a certain pitch; wherein said dose drum is also arranged with external threads in engagement with corresponding threads arranged fixed in relation to said housing, wherein said threads have a certain pitch; and wherein the pitch of the threads between the dose drum and fixe

Abstract: A dose counter device for an inhaler that in a reliable way registers a delivered dose from a canister in the inhaler and that at the same time substantially reduces the risk of falsely registering a dose not delivered substantially avoids erroneous counting of delivered doses from the canister.

Abstract: The present invention relates to a dose setting mechanism intended to be used in a medicament delivery device, comprising an elongated tubular distal housing (16) having opposite distal and proximal ends, wherein said distal housing comprises threads (14) on its inner surface, a first window (30), a second window (32), and at least one opening (38) on its elongated surface; a tubular dose limiting member (10) having opposite distal and proximal ends, wherein said dose limiting member comprises a first thread segment (12) on its outer circumference surface at its proximal end intended to cooperate with corresponding threads on the inner surface of the distal housing, first indicia (18) on its outer circumferential surface, a stop surface (42) at its proximal end, and a number of protrusions (20) arranged equidistant to each other along the circumference on the outer surface at its distal end; a tubular dose setting member (22) having opposite distal and proximal ends, wherein said distal housing is coaxially a

Abstract: The present invention relates to a medicament delivery device comprising a generally tubular distal housing part (10; 110) having opposite proximal and distal ends, wherein third mechanically coded interface means (11; 111) are arranged on its proximal end; a generally tubular proximal housing (20; 120) part having opposite proximal and distal ends and being releasibly connected to said distal housing part, wherein with fourth mechanically coded interface means (22; 122) are arranged on its distal end; a medicament container having a slidable stopper, wherein said container is arranged to be positioned within said proximal housing part; a plunger rod (60; 160) arranged within said distal housing; drive means arranged within said distal housing and being operably connected to said plunger rod for driving said plunger rod and thereby said stopper towards the proximal end of the device; wherein said device further comprises an interface member (50; 150) comprising first (51; 151) and second (52; 152) mechanicall

Abstract: A filter to be used in the expiratory branch of a ventilator, includes a housing arranged with an inlet passage and an outlet passage, a main filter element, a pre-filter member arranged before the main filter element as seen in the flow direction and an air permeable, material capable of collecting medicament droplets in the air stream through the main filter element.

Abstract: The present invention relates to a device to be used with a medical administration device, which administration device comprises administration drive means for administrating a prescribed dose of medicament; mechanical dose setting means for setting a prescribed dose of medicament to be administered, including a mechanical indicating member (76) fixedly connected to said administration drive means (84) for indicating the prescribed set dose, wherein said device comprises mechanical dose information means for registering the prescribed dose of medicament to be administered including a mechanical information member adjustable to display that said prescribed dose to be administered is correct, and inter-connected to said mechanical indicating member such that when the prescribed dose is set, this is indicated positively by indications on said mechanical information member.

Abstract: The invention refers to a dose counter device for an inhaler that in a reliable way will register a delivered dose from a canister comprised in the inhaler, and that at the same time substantially will reduce the risk of falsely register a dose not delivered. Thus, the present invention will in an effective way, substantially avoid erroneous counting of delivered doses from the canister.