Source: http://www.freshpatents.com/Drug-delivery-device-dt20120419ptan20120095411.php
Timestamp: 2013-05-24 09:17:55
Document Index: 170590398

Matched Legal Cases: ['art 5', 'art 6', 'art 5', 'art 6', 'art 5', 'art 6', 'art 6', 'art 6', 'art 5', 'art 6', 'art 5', 'art 6', 'art 5', 'art 6', 'art 5', 'art 6', 'art 5', 'art 5', 'art 6', 'art 6', 'art 5', 'art 6', 'art 5', 'art 6', 'art 5']

Drug Delivery Device 1 views for this patent on FreshPatents.comupdated 05/24/2013
Patents sorted by company.	04/19/12 | Class 604 Monitor | RSS | Browse: Prev - Next Drug delivery device Abstract: A drug delivery device comprises an outer housing rollable around a rotation axis and at least one stop member. The stop member protrudes radially from the outer housing of the drug delivery device and is configured to prevent rolling movement of the drug delivery device along a predetermined surface. The outer housing comprises a main housing and a dose member. The dose member is movable with respect to the main housing when setting and/or delivering a dose of a drug. The stop member comprises a first part and a second part, wherein the first part is arranged on the main housing and the second part is arranged on the dose member.
Inventors: Michael Harms, Steffen Raab, Uwe Dasbach, Udo StauderUSPTO Applicaton #: #20120095411 - Class: 604207 (USPTO) - 04/19/12 - Class 604 The Patent Description & Claims data below is from USPTO Patent Application 20120095411, Drug delivery device.
Turning to FIG. 1, a drug delivery device 1 comprises an outer housing 2a. The outer housing 2a comprises a main housing 2b and a dose member 3. FIG. 1 further shows a stop member 4 protruding from the outer housing 2a. The stop member 4 comprises a first part 5 and a second part 6. The first part 5 is arranged on the main housing 2b and the second part 6 is arranged on the dose member 3. The drug delivery device 1 comprises two sections 16, 17, a distal end and a proximal end as well as a cartridge holder 18. The device 1 further comprises a rotation axis which extends axially along said drug delivery device 1, in particular along a (main) longitudinal axis thereof. The device 1 is arranged on a (predetermined) surface 7.
The drug delivery device 1 comprises the cartridge holder 18, which may be attached, preferably glued, to the outer housing 2a. The cartridge holder 18 may comprise a cartridge containing a drug. The term “drug” as used herein preferably means a pharmaceutical formulation containing at least one pharmaceutically active compound having a molecular weight up to 1500 Da, or a pharmaceutically active peptide, protein, DNA, RNA, antibody, enzyme, hormone or oligonucleotide, or a mixture thereof, preferably comprising at least one peptide, further preferred a peptide for the treatment of diabetes mellitus or complications associated with diabetes mellitus such as diabetic retinopathy, especially preferred human insulin or a human insulin analogue or derivative, glucagon-like peptide (GLP-1) or an analogue or derivative thereof, or exedin-3 or exedin-4 or an analogue or derivative of exedin-3 or exedin-4.
The drug delivery device 1 may further comprise a plunger and a plunger seal (not shown in FIG. 1, see plunger 19 in FIG. 3) which are movable with respect to the outer housing 2a. The plunger 19 may be moved into proximal direction with respect to the outer housing 2a for setting a dose of the drug and the plunger 19 may be moved into distal direction with respect to the outer housing 2a for delivering the dose of the drug. The plunger seal may provide a fluid seal between the cartridge and the plunger 19, which means that the drug cannot move between the cartridge and the plunger 19.
The outer housing 2a may be rollable around the rotation axis. The outer housing 2a may comprise a tubular or cylindrical shape, as shown in FIG. 1. The outer housing 2a comprises the main housing 2b, which may be of tubular shape, as indicated in FIG. 1, and the dose member 3. The dose member 3 may further comprise a dose button, which may be depressed by a user for delivering a dose of the drug after the dose has been set. The dose member 3 may be axially displaceable and/or rotatable with respect to the main housing 2b of the drug delivery device 1. Thereby, the dose member 3 may be moved and/or rotated in a proximal direction with respect to the main housing 2b for setting a dose of the drug. Afterwards, the dose member 3 may be moved and/or rotated in a distal direction with respect to the main housing 2b for delivering the previously set dose of the drug. The dose member 3 is preferably threadedly engaged with the main housing 2b. The distance by which the dose member 3 is displaced in proximal direction with respect to the main housing 2b when setting a dose of the drug may determine the amount of the drug which is dispensed subsequently.
The stop member 4 protrudes radially from the outer housing 2a of the drug delivery device 1, i.e. radially with respect to the rotation axis of the drug delivery device 1. The stop member 4 may be connected to the outer housing 2a. The stop member 4 is configured to prevent and/or to limit an unintentional rolling of the device 1 with respect to the surface 7. The stop member 4 may be configured to permit a certain rolling of the device 1 into a stabilized position of said device 1. Once having rolled into the stabilized position, the drug delivery device 1 is prevented from further rolling along the surface 7 by the stop member 4.
In this embodiment, the drug delivery device 1 comprises two sections 16, 17 each comprising a defined diameter. The section with the greater diameter (in this embodiment section 17) is arranged in the region of the proximal end of the outer housing 2a. The stop member 4 is arranged in the section 17 comprising the greater diameter, i.e. that section which allows for exerting the greater torque for limiting and/or preventing rolling movement of the drug delivery device 1 via interaction of the stop member 4 and the surface 7. Preferably, the stop member 4 is arranged in the region of the proximal end of the outer housing 2a. For example, the stop member 4 may be shaped rib-like.
The stop member 4 may protrude radially from the outer housing 2a by at least 0.75 mm. Preferably, the stop member 4 protrudes by at least 1.0 mm from the outer housing 2a. The stop member 4 may protrude radially from the outer housing 2a by at least 1.5 mm. Even when the drug delivery device 1 is arranged on an inclined surface 7, a stop member 4 of this kind may still be suitable for preventing rolling movement of the device 1.
In this embodiment the stop member 4 extends along the rotation axis (i.e. the axial extension of the stop member 4) by 1.0 cm or less, preferably by 0.75 cm or less. The stop member 4 extends along an outer surface of the outer housing 2a and transversally with respect to the rotation axis (i.e. the azimuthal extension of the stop member 4) by 0.5 cm or less, preferably by 0.3 cm or less.
In addition, radial protrusion, axial extension and azimuthal extension of the stop member 4 should be suitable to prevent rolling of the drug delivery device 1 still at a certain inclination of the surface 7. Preferably, the stop member 4 prevents rolling of the drug delivery device 1 along the surface 7 up to an inclination of 10° of the surface 7 with respect to the earth\'s surface. Additionally or alternatively, stop member 4 should be suitable to prevent rolling of the device 1 when the defined surface 7 moves and/or vibrates, for example when the user of the device 1 is in a train or an aeroplane.
The stop member 4 may comprise a surface, which faces away from the outer housing 2a (see surface 13 in FIG. 2). In one embodiment, said surface 13 of the stop member 4 may be plane. Thereby, the surface 13 may serve as a bearing surface for the drug delivery device 1 when said device 1 is placed on the predetermined surface 7 with surface 13 contacting predetermined surface 7. In addition to its function as a bearing member, the stop member 4 may act, of course, as a blocking/stabilizing member preventing and/or limiting rolling of the drug delivery device 1 along the surface 7, as described previously. This means, that in this embodiment the stop member 4 may cause the drug delivery device 1 to roll and stay in a desired position. Once having rolled into the desired position the stop member 4 prevents further rolling of the device 1 along the surface 7 and the device 1 may stay in the stable position with bearing surface 13 facing predetermined surface 7.
In the shown embodiment, the stop member 4 comprises the first part 5 and the second part 6. The first part is provided on, i.e. protrudes radially from, the main housing 2b. The second part 6 is provided on the dose member 3, i.e. radially protrudes from the dose member 3. Thus, the second part 6 is movable and/or rotatable with respect to the first part 5 of the stop member 4.
Preferably, the dose member 3 comprises an initial state, in which the dose member 3 is not rotated with respect to the main housing 2b (i.e. that state the dose member 3 is in before a dose of the drug is set). Hence, in the initial state of the dose member 3, the second part 6 of the stop member 4 is not rotated with respect to the first part 5 of the stop member.
The drug delivery device 1 may further comprise a cap (see cap 8 in FIG. 3) covering the distal end of the drug delivery device 1. Said cap 8 may be removably attachable to the drug delivery device 1, e.g. removably attachable to the outer housing 2a of the drug delivery device 1. The cap 8 may be configured to cover the previously mentioned needle assembly (not shown in FIG. 1) of the drug delivery device 1. The cap 8 may prevent said needle assembly from being damaged and/or from being polluted. If attached to the device 1 the cap 8 may be non-rotatable with respect to the outer housing 2a. For removing the cap 8 from the outer housing 2a a user axially moves said cap 8 in distal direction with respect to the outer housing 2a and for attaching the cap 8 onto the outer housing 2a the user may axially move the cap 8 in proximal direction with respect to the outer housing 2a. The cap 8 may be attachable to the outer housing 2a by means of engagement features for example. When attached to the device 1, the cap 8 may be rotationally locked with respect to the drug delivery device 1. Preferably, the cap 8 comprises a clip (see clip 10 in FIG. 3), wherein said clip 10 protrudes from the cap 8 and said clip 10 may be suitable to prevent rolling movement of the drug delivery device 1.
In this embodiment, the dose member 3 comprises the protrusions 12, for example ribs, which protrude radially from the outer surface 11 of said dose member 3. The protrusions 12 may assist a user to grab the dose member 3 and to move and/or rotate the dose member 3 with respect to the main housing 2b for setting and/or delivering a dose of the drug.
The stop member 4 protrudes further radially from the outer housing 2a, i.e. the second part 6 of the stop member 4 protrudes further from the dose member 3 and the first part 5 of the stop member 4 protrudes further from the main housing 2b, than the protrusions 12 protrude from the outer surface 11 of the dose member 3. Preferably, the stop member 4 protrudes radially from the outer housing 2a by at least 1.0 mm (i.e. the second part 6 of the stop member 4 protrudes radially from the dose member 3 by at least 1.0 mm and the first part 5 of the stop member 4 protrudes radially from the main housing 2b by at least 1.0 mm, whereas, preferably, the second part 6 and the first part 5 protrude by an equal distance from the outer housing 2a).
FIG. 2 shows the proximal end of the drug delivery device 1 of FIG. 1 in a more detailed view, comprising a proximal end side view of the main housing 2b, further comprising the dose member 3 and the stop member 4, which is encircled and which comprises the first part 5 and the second part 6. FIG. 2 further shows a surface 13 of the stop member 4, wherein the surface 13 faces away from the outer housing 2a of the drug delivery device 1, i.e. the surface 13 faces away from the dose member 3 and the main housing 2b. FIG. 2 shows essentially the same as FIG. 1. In particular, FIG. 2 shows the dose member 3 in the initial state. Thereby, the second part 6 of the stop member 4 is aligned with the first part 5 of the stop member 4. The second part 6 continues the first part 5 of the stop member 4. This enhances the ability of the stop member 4 to stabilize the device 1 against rolling movement with respect to the surface 7. Preferably, the stop member 4 prevents rolling of the device 1 only if the second part 6 of the stop member 4 is aligned with the first part 5 of the stop member 4.
FIG. 3 shows a cap 8 comprising a main body 9 and a clip 10. In addition, FIG. 3 shows plunger 19. Plunger 19 can move with respect to the outer housing 2a as already explained in connection with the description of FIG. 1.
The cap 8 may be removably attachable to the previously described drug delivery device 1 (not shown in FIG. 3) covering the distal end of said drug delivery device 1. The cap 10 may be rotationally locked with respect to the outer housing 2a of the drug delivery device 1 when attached to the drug delivery device 1.
The clip 10 protrudes further radially from the main body 9 of the cap 8 than the stop member 4 protrudes radially from the outer surface 2a of the drug delivery device 1. Hence, the clip 10 may serve as a blocking element preventing rolling of the previously described drug delivery device 1 along the surface 7 (not shown in FIG. 3) when attached to the device 1. Consequently, when the cap 8 and hence the clip 10, have been detached from the device 1, the drug delivery device 1 may be especially prone to unintentional rolling with respect to the predetermined surface 7. Hence, the stop member 4 preferably prevents and/or limits rolling of the device 1 only when the cap 10 is detached from the drug delivery device 1.
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