摘要:
The invention relates to a disposable drug delivery device (1) for selecting and dispensing a number of user variable doses of a medicament. The device (1) comprises a housing (10, 20), a cartridge holder (11) for retaining a cartridge (80) containing the medicament, a piston rod (30) displaceable relative to the cartridge holder (11), a driver (40) coupled to the piston rod (30), a display member (60) for indicating a set dose and being coupled to the housing (10, 20) and to the driver (40), and a button (70) coupled to the display member (60) and to the driver (40).
摘要:
A supplemental device for attachment to an injection device, the supplemental device comprising: an electromechanical switch arrangement (110) having an open state and a closed state, the electromechanical switch arrangmenet (110) comprising a protrusion (118) configured to contact a surface (116, 117) of the injection device when a dose of zero units is dialled into the injection device, wherein the state of the switch arrangement (110) is configured to change when a dose dialled into the attached injection device is decreased from one unit to zero units; and a processor arrangement configured to: detect one or more changes in the state of the electromechanical switch arrangement (110); and determine from the one or more state changes that a dose of zero units is dialled into the injection device.
摘要:
The present invention relates to a drive mechanism for an injection device for setting and dispensing of a dose of a medicament, the drive mechanism comprising: - an inner body (20) fixable inside a housing (10) of the injection device (1), the inner body (20) comprising an elongated shaft (20a) extending in an axial direction (z), wherein the elongated shaft (20a) comprises an outer thread (21) and a blocking structure (40) on an outer circumference, - a tubular-shaped display member (160) having an inner thread (163) engaged with the outer thread (21) of the inner body (20), and - a dose member (70; 270) axially displaceable relative to at least one of the inner body (20) and the display member (160) between a dose setting position (S) and a dose dispensing position (D), - a blocking ring (180; 280; 380) axially engageable with the dose member (70; 270), rotationally fixed to the display member (160) and comprising at least one blocking element (182, 282; 382) to axially engage with the blocking structure (40) for blocking an axial displacement of the dose member (70) from the dose setting position (S) towards the dose dispensing position (D).
摘要:
A supplemental device for attachment to an injection device, the supplemental device having a housing containing at least two electromechanical switches each having an open state and a closed state and a protrusion associated with each switch configured to protrude from the housing so as to contact a rotatable surface of the injection device while the supplemental device is attached to the injection device; and a processor arrangement configured to detect a change in the state of each of the switches; and to determine a direction of rotation of the rotatable surface of the injection device from the detected state changes.
摘要:
The present invention relates an elongated housing for an injection device (10) for delivery of a liquid medicament, the housing comprising: - a tubular-shaped cartridge holder (20) to accommodate a cartridge (50) filled with the medicament and comprising a proximal connecting end (21), - a body (30) to accommodate a drive mechanism (5) operably engageable with a piston (52) of the cartridge (50), wherein the body (30) comprises a distal connecting end (31) connectable to the proximal connecting end (21), - wherein one of the proximal connecting end (21) and the distal connecting end (31) comprises an insert section (22), - wherein the other one of the proximal connecting end (21) and the distal connecting end (31) comprises a receptacle (32) to axially receive the insert section (21), - wherein the insert section (22) comprises at least one fastening element (25) to positively engage with a complementary-shaped fastening element (35) of the receptacle (32) to provide an axial interlock (6) of the cartridge holder (20) and the body (30), - wherein the fastening elements (25, 35) of the insert section (22) and the receptacle (32) comprise at least one pair of a radial protrusion (135) mating with a radial recess (125) provided on an inside wall (36) of the receptacle (32) and on an outside wall (26) of the insert section (22) and - wherein a radial depth (D) of the radial recess (125) is smaller than a thickness of the sidewall of the insert section (22) or a thickness of a sidewall (33) of the receptacle (32).
摘要:
The disclosure is directed to a differential gear mechanism for a drug delivery device with a primary drug delivery assembly and a secondary drug delivery assembly, wherein the primary drug delivery assembly comprises a primary dose dial sleeve and wherein the secondary drug delivery assembly comprises a secondary drive sleeve. The disclosure is also directed to a respective drug delivery device.
摘要:
A drive mechanism for an injection device includes a housing, a dose dial member, a drive member engaging a lead screw, and a first clutch rotationally coupling the drive member and the housing in a coupled state and allowing relative rotation between the drive member and the housing in a de-coupled state. The drive mechanism further includes a second clutch rotationally coupling the drive member and the dial member in a coupled state and allowing relative rotation between the drive member and the dial member in a de-coupled state, and a nut coaxially arranged between the drive member and the dial member, splined or keyed to the drive member, and threadedly engaged to the dial member such that it moves axially on the drive member during dose setting but not during dose dispensing.
摘要:
The invention refers to an injection device comprising a housing (10), containing a cartridge (170) with an amount of liquid to be dispensed, a drive sleeve (41), which is rotationally constrained to the housing (10) during dose setting and spring driven rotatable relative to the housing (10) during dose dispensing, a dose dial member (60) for setting a dose to be dispensed, which is rotatable relative to the housing (10) during dose setting and during dose dispensing, and which is rotationally coupled to the drive sleeve (41) during dose dispensing. The device further comprises a last dose protection mechanism (41, 50, 60) for preventing the setting of a dose, which exceeds the amount of liquid left in the cartridge (170), with a limiter (50), which is interposed between the drive sleeve (41) and the dose dial member (60). Further, the device comprises two different display members (110, 120), each indicating the set dose.
摘要:
The present invention relates to a pen type drug delivery device having a dose setting limiter mechanism. The mechanism comprises a housing (10, 30, 40; 40′), a dose setting member (50), which during dose setting rotates relative to the housing (10, 30, 40; 40′) in a first direction and which during dose dispensing rotates relative to the housing (10, 30, 40; 40′) in a second opposite direction, and a limiting element (60) limiting the rotational movement of the dose setting member between a zero dose position and a maximum dose position. The limiting element (60) is rotationally constrained but axially displaceable relative to one of the housing (10, 30, 40; 40′) or the dose setting member (50) and is movable helically (53) relative to the other of the housing (10, 30, 40; 40′)or the dose setting member (50). These movements have end stops (54, 55) limiting the relative movement of the limiting element (60) and thus the dose setting member.