摘要:
The drive mechanism comprises a piston rod, a dose member with a thread engaging a corresponding thread of the body to allow a helical movement of the dose member with respect to the body, a drive sleeve rotationally coupled to the dose member, and stop means provided to restrict or inhibit a movement of the drive sleeve in the proximal direction and in the distal direction with respect to the body, the drive sleeve and the piston rod being unidirectionally coupled.
摘要:
A drive mechanism for a medication delivery device (1) is proposed, the drive mechanism comprising a housing (13, 17, 40) having a proximal end and a distal end, a rotation member (21) which is adapted to be rotated in a first direction with respect to the housing during setting of a dose of a medication and to be rotated in a second direction with respect to the housing during delivery of the dose, the second direction being opposite to the first direction, a piston rod (12) which is adapted to be displaced in a distal direction with respect to the housing for delivering the dose, a drive member (20) which follows rotational movement of the rotation member in the second direction during delivery of the dose, and a stop member (26) which prevents rotational movement of the drive member with respect to the housing in the first direction during setting of the dose, wherein the rotational movement of the drive member in the second direction is converted into movement of the piston rod in the distal direction with respect to the housing. Furthermore, a medication delivery device is provided for.
摘要:
A resettable drive mechanism for a medication delivery device comprising a housing and a drive member rotatable in a second direction for delivering a dose. A piston rod driven distally when a drive member rotates in the second direction. A stop member prevents rotation of the drive member in a first direction opposite the second direction, when the stop member engages the drive member. A clutch member is movable between a delivery and reset position. When the clutch member is in the delivery position, the stop member and the drive member engage and the drive member is prevented from rotating in the first direction. When the clutch member is in the reset position, the drive member and the stop member disengage. The drive member is rotatable in the first direction.
摘要:
A drive mechanism for a medication delivery device (1) is proposed, the drive mechanism comprising a housing (13, 17, 40) having a proximal end and a distal end, a rotation member (21) which is adapted to be rotated in a first direction with respect to the housing during setting of a dose of a medication and to be rotated in a second direction with respect to the housing during delivery of the dose, the second direction being opposite to the first direction, a piston rod (12) which is adapted to be displaced in a distal direction with respect to the housing for delivering the dose, a drive member (20) which follows rotational movement of the rotation member in the second direction during delivery of the dose, and a stop member (26) which prevents rotational movement of the drive member with respect to the housing in the first direction during setting of the dose, wherein the rotational movement of the drive member in the second direction is converted into movement of the piston rod in the distal direction with respect to the housing. Furthermore, a medication delivery device is provided for.
摘要:
The drive mechanism comprises a piston rod, a dose member with a thread engaging a corresponding thread of the body to allow a helical movement of the dose member with respect to the body, a drive sleeve rotationally coupled to the dose member, and stop means provided to restrict or inhibit a movement of the drive sleeve in the proximal direction and in the distal direction with respect to the body, the drive sleeve and the piston rod being unidirectionally coupled.
摘要:
A resettable drive mechanism for a medication delivery device is proposed, said mechanism comprising a housing (13, 17, 40) with a proximal end and a distal end, a drive member (20) rotatable with respect to the housing in a second direction for delivering a dose of a medication, a piston rod (12) adapted to be driven in a distal direction with respect to the housing by the drive member, when the drive member rotates in the second direction, a stop member (26) adapted to prevent rotation of the drive member in a first direction opposite to the second direction with respect to the housing, when the stop member engages the drive member, and a clutch member (58) movable with respect to the housing between a delivery position (D) and a reset position (R), wherein, when the clutch member is in the delivery position, the stop member and the drive member are engaged and the drive member is prevented from rotating in the first direction with respect to the housing, and when the clutch member is in the reset position, the drive member and the stop member are disengaged, the drive member is rotatable in the first direction with respect to the housing and the piston rod is movable in the proximal direction with respect to the housing. Furthermore, a medication delivery device is provided.
摘要:
An assembly for a drug delivery device is disclosed. An example assembly includes a housing, a rotation member, a drive member, and at least one correction member. The rotation member is adapted to be rotated with respect to the housing in a first rotational direction for delivering a dose of a drug. The drive member is coupleable to the rotation member for delivering the dose. In a delivery mode, the drive member and the rotation member are coupled such that the drive member follows rotational movement of the rotation member in the first rotational direction due to mechanical interaction of the rotation member and the drive member. In a correction mode, the rotation member and the drive member are decoupled such that the rotation member is rotatable in the first rotational direction with respect to the drive member.
摘要:
An assembly for a drug delivery device (1) comprises a housing (5), a rotation member (15), a drive member (16) and at least one correction member (7). The rotation member (15) is adapted to be rotated with respect to the housing (5) in a first rotational direction for delivering a dose of a drug (11). The drive member (16) is coupleable to the rotation member (15) for delivering the dose. In a delivery mode, the drive member (16) and the rotation member (15) are coupled such that the drive member (16) follows rotational movement of the rotation member (15) in the first rotational direction due to mechanical interaction of the rotation member (15) and the drive member (16). In a correction mode, the rotation member (15) and the drive member (16) are decoupled such that the rotation member (15) is rotatable in the first rotational direction with respect to the drive member (16). For switching from the delivery mode into the correction mode, the correction member (7) is movable with respect to the housing (5), wherein the assembly is configured such that movement of the correction member (7) with respect to the housing (5) is converted into a relative movement between the drive member (16) and the rotation member (15) for decoupling the drive member (16) and the rotation member (15).
摘要:
A cartridge holder for retaining a cartridge comprising a distal end and a proximal end being spaced apart from one another in the direction of an axis, an interior which is suitable to receive and retain a cartridge in a cartridge retaining section of the interior, and a main part and at least one protrusion which is moveably connected to the main part. The protrusion is arranged to define the radial extension of a subsection of the interior, wherein the subsection is arranged at an axial position which is further away from the distal end than the cartridge retaining section. Furthermore, the protrusion is arranged to vary the radial extension of the subsection when the protrusion is moved with respect to the main part. Moreover, a method for securing a cartridge in a cartridge holder is proposed.
摘要:
A drive sleeve is arranged within a body and coupled with a dose member by means of threads. Stop means inhibit a shift of the drive sleeve while allowing a rotation of the drive sleeve. A clutch is provided to lock the dose member rotationally to the body in a releasable manner when a force is exerted on the dose member in the distal direction, the clutch permitting a movement of the dose member in the distal direction with respect to the body.