US-12623021-B2 - Medicament delivery device component

Abstract

Medicament delivery device components that compensate for manufacturing tolerances are presented, where the medicament delivery device component can have a base portion extending in an axial direction relative to an axis, a compensation member having a first portion attached to the base portion and a second portion attached to the first portion and spaced apart from the base portion in the axial direction. The second portion can have a disc extending around the axis in the circumferential direction and a protrusion extending from the disc in the axial direction, wherein the protrusion is spaced apart from the first portion in the circumferential direction. At least part of the disc is configured to flex relative to the base portion when acted on by a force in the axial direction.

Inventors

• Marcus Söderlund

Assignees

• SHL MEDICAL AG

Dates

Publication Date

20260512

Application Date

20201120

Priority Date

20200320

Claims (18)

1. 1 . A medicament delivery device component that compensates for manufacturing tolerances, the medicament delivery device component comprising: a base portion extending in an axial direction along the longitudinal axis of the medicament delivery device component; and a compensation member comprising, a first portion attached to the base portion; and a second portion attached to the first portion and spaced apart from the base portion in the axial direction, wherein the second portion comprises a disc extending around the longitudinal axis in a circumferential direction and a protrusion extending from the disc in the axial direction, where the protrusion is spaced apart from the first portion in the circumferential direction, and wherein the protrusion is V-shaped having a first straight portion and a second straight portion that converge at a vertex of the V-shaped protrusion, and wherein the first straight portion and the second straight portion diverge from one another radially away from the longitudinal axis, such that the vertex is radially closer to the longitudinal axis than the remainder of the V-shaped protrusion; and wherein at least part of the disc is configured to flex relative to the base portion when acted on by a force in the axial direction.
2. 2 . The medicament delivery device component of claim 1 , wherein the disc extends around the longitudinal axis in a plane perpendicular to the longitudinal axis when the disc is in an unbiased state.
3. 3 . The medicament delivery device component of claim 1 , wherein the base portion is tubular.
4. 4 . The medicament delivery device component of claim 1 , wherein the protrusion extends from a face of the disc, wherein the face of the disc faces away from the base portion.
5. 5 . The medicament delivery device component of claim 1 , wherein the portion of the protrusion furthest from the longitudinal axis extends further from the base portion than the portion of the protrusion closest to the longitudinal axis, wherein the distance between the portion of the protrusion furthest from the longitudinal axis decreases at a constant rate.
6. 6 . The medicament delivery device component of claim 1 , wherein the base portion is a second compensation member, wherein the second compensation member is on a different axial plane than the compensation member, the second compensation member comprising: a first portion of the second compensation member, wherein the first portion of the second compensation member is attached to the first portion of the compensation member, and a second portion of the second compensation member, wherein the second portion of the second compensation member is attached to the first portion of the second compensation member and is spaced apart from the compensation member in the axial direction.
7. 7 . The medicament delivery device component of claim 6 , wherein the second portion of the second compensation member comprises a disc extending around the longitudinal axis in the circumferential direction and a protrusion extending from the disc in the axial direction, and wherein the protrusion is spaced apart from the first portion of the second compensation member in the circumferential direction.
8. 8 . A medicament delivery device component for compensating for manufacturing tolerance, the medicament delivery device component comprising: a compensation member and a second compensation member attached to the compensation member, the medicament delivery device component extending in an axial direction along the longitudinal axis of the medicament delivery device component, the compensation member comprising a first portion and a second portion, the second compensation member comprising a first portion and a second portion, wherein the first portion of the compensation member and the first portion of the second compensation member are attached to each other, wherein the second portion of the compensation member is attached to the first portion of the compensation member and is spaced apart from the second compensation member in the axial direction when the medicament delivery device component is in an unbiased state, and wherein the second portion of the compensation member is configured to flex relative to the second compensation member when acted on by a force in the axial direction, wherein the second portion of the second compensation member is attached to the first portion of the second compensation member and is spaced apart from the compensation member in the axial direction when the medicament delivery device component is in an unbiased state, and wherein the second portion of the second compensation member is configured to flex relative to the compensation member when acted on by a force in the axial direction, and wherein the medicament delivery device component comprises a protrusion extending from the second portion of the compensation member and a protrusion extending from the second portion of the second compensation member, and wherein each of the protrusion extending from the second portion of the compensation member and the protrusion extending from the second portion of the second compensation member is V-shaped and having a first straight portion and a second straight portion that converge at a vertex of the V-shaped protrusion, and wherein the first straight portion and the second straight portion diverge from one another radially away from the longitudinal axis, such that the vertex is radially closer to the longitudinal axis than the remainder of the V-shaped protrusion.
9. 9 . The medicament delivery device component of claim 8 , wherein the protrusion extending from the second portion of the compensation member extends in the axial direction, and wherein the protrusion is spaced apart from the first portion of the second compensation member in the circumferential direction.
10. 10 . The medicament delivery device component of claim 8 , wherein the protrusion extending from the second portion of the second compensation member extends in the axial direction, and wherein the protrusion is spaced apart from the first portion of the compensation member in the circumferential direction.
11. 11 . The medicament delivery device component of claim 6 , wherein the medicament delivery device component consists of the compensation member and the second compensation member.
12. 12 . The medicament delivery device component of claim 6 , wherein the compensation member is the same shape as the second compensation member.
13. 13 . The medicament delivery device component of claim 1 , wherein the medicament delivery device component is a single integrally formed part.
14. 14 . A medicament delivery device comprising the medicament delivery device component of claim 13 .
15. 15 . The medicament delivery device of claim 14 , wherein the medicament delivery device is an inhaler, an auto-injector or a pen injector.
16. 16 . A medicament delivery device component that compensates for manufacturing tolerances, the medicament delivery device component comprising: a base portion extending in an axial direction along the longitudinal axis of the medicament delivery device component, where the base portion is tubular; a compensation member comprising, a first portion attached to the base portion and a second portion attached to the first portion and spaced apart from the base portion in the axial direction, wherein the second portion comprises a disc extending around the longitudinal axis in a circumferential direction in a plane perpendicular to the longitudinal axis in a first unbiased state, wherein the disc comprises two protrusion that extend from a surface in the axial direction, where the protrusions are spaced apart from the first portion and from each other in the circumferential direction, and wherein each of the protrusions is V-shaped having a first straight portion and a second straight portion that converge at a vertex of the V-shaped protrusion, and wherein the first straight portion and the second straight portion diverge from one another radially away from the longitudinal axis, such that the vertex is radially closer to the longitudinal axis than the remainder of the V-shaped protrusion; and wherein the disc moves from the unbiased state to a flexed state relative to the base portion when acted on by a force in the axial direction.
17. 17 . The medicament delivery device component of claim 16 , wherein the portion of each of the protrusions furthest from the longitudinal axis extends further from the base portion than the portions of the protrusions closest to the longitudinal axis, wherein the distance between the portion of the protrusion furthest from the longitudinal axis decreases at a constant rate.
18. 18 . The medicament delivery device component of claim 16 , wherein the base portion comprises a second compensation member, wherein the second compensation member is on a different axial plane than the compensation member, the second compensation member comprising: a first portion of the second compensation member, wherein the first portion of the second compensation member is directly attached to the first portion of the compensation member; and a second portion of the second compensation member, wherein the second portion of the second compensation member is attached to the first portion of the second compensation member and is spaced apart from the compensation member in the axial direction.

Description

CROSS REFERENCE TO RELATED APPLICATIONS The present application is a U.S. National Phase Application pursuant to 35 U.S.C. § 371 of International Application No. PCT/EP2020/082945 filed Nov. 20, 2020, which claims priority to European Patent Application No. 20164587.6 filed Mar. 20, 2020. The entire disclosure contents of these applications are herewith incorporated by reference into the present application. TECHNICAL FIELD The present disclosure concerns a medicament delivery device component, and particularly a medicament delivery device component for compensating manufacturing tolerance comprising a compensating member. BACKGROUND Medicament delivery devices are often made of a large number of different parts which are then fitted together. Although the accuracy of manufacture of these parts is typically high, there is still some need for tolerance within the assembled medicament delivery devices to allow for slight differences in the size of individual components due to manufacturing variability. With this in mind, the applicant has appreciated that improved tolerance management within medicament delivery devices would be desirable. SUMMARY The present disclosure is defined by the appended claims, to which reference should now be made. In the present disclosure, when the term “distal direction” is used, this refers to the direction pointing away from the dose delivery site during use of the medicament delivery device. When the term “distal part/end” is used, this refers to the part/end of the delivery device, or the parts/ends of the members thereof, which under use of the medicament delivery device is/are located furthest away from the dose delivery site. Correspondingly, when the term “proximal direction” is used, this refers to the direction pointing towards the dose delivery site during use of the medicament delivery device. When the term “proximal part/end” is used, this refers to the part/end of the delivery device, or the parts/ends of the members thereof, which under use of the medicament delivery device is/are located closest to the dose delivery site. Further, the terms “longitudinal”, “longitudinally”, “axially” and “axial” refer to a direction extending from the proximal end to the distal end and along the device or components thereof, typically in the direction of the longest extension of the device and/or component. Similarly, the terms “transverse”, “transversal” and “transversally” refer to a direction generally perpendicular to the longitudinal direction. Generally, all terms used in the claims are to be interpreted according to their ordinary meaning in the technical field, unless explicitly defined otherwise herein. All references to a/an/the element, apparatus, member, component, means, etc. are to be interpreted openly as referring to at least one instance of the element, apparatus, member component, means, etc., unless explicitly stated otherwise. A first aspect of the disclosure concerns a medicament delivery device component for compensating manufacturing tolerance, the medicament delivery device component comprising a base portion extending in an axial direction relative to an axis, a compensation member comprising a first portion attached to the base portion and a second portion attached to the first portion and spaced apart from the base portion in the axial direction, wherein the second portion comprises a disc extending around the axis in the circumferential direction and a protrusion extending from the disc in the axial direction, wherein the protrusion is spaced apart from the first portion in the circumferential direction, wherein at least part of the disc is configured to flex relative to the base portion when acted on by a force in the axial direction. Medicament delivery device components of this type can compensate for manufacturing tolerances. In particular, they can compensate for manufacturing tolerances in the axial direction, such as limited accuracy of component length within a medicament delivery device. The distances that would be compensated for would typically be small, for example 1 to 5 mm, although larger or smaller distances could also be compensated for in some embodiments. This present disclosure can therefore allow for cheaper manufacture, since lower accuracy production can be tolerated. In addition, the present disclosure can stop parts of a device from rattling. In some embodiments, the disc extends around the axis in a plane perpendicular to the axis when the disc is in an unbiased state. In some embodiments, the base portion is tubular. In some embodiments, the protrusion extends from a face of the disc, wherein the face of the disc faces away from the base portion. In some embodiments, the portion of the protrusion furthest from the axis extends further away from the base portion than the portion of the protrusion closest to the axis. A protrusion of this shape can reduce stress on components. This can therefore increase component and device lif