Medicament delivery device

Patent metadata

Field	Value
Publication number	US-12465697-B1
Application number	US-202519064155-A
Country	US
Kind code	B1
Filing date	Feb 26, 2025
Priority date	Feb 26, 2025
Publication date	Nov 11, 2025
Grant date	Nov 11, 2025

Abstract

A medicament delivery device is described. The medicament delivery device includes a proximal end and a distal end defining a longitudinal axis; a body; and a button arranged at the proximal end and configured to actuate the medicament delivery device. The medicament delivery device further includes a lock ring configured to rotate relative to the body about the longitudinal axis between a first position in which the button is not permitted to move along the longitudinal axis relative to the body, and a second position in which the button is permitted to move along the longitudinal axis relative to the body; a plurality of first indication elements circumferentially spaced around a first portion of the medicament delivery device; and a plurality of second indication elements circumferentially spaced around a second portion of the medicament delivery device.

First claim

The invention claimed is:

1 . A medicament delivery device comprising:
a proximal end and a distal end defining a longitudinal axis; a body; a button arranged at the proximal end and configured to actuate the medicament delivery device; a lock ring configured to rotate relative to the body about the longitudinal axis between a first position in which the button is not permitted to move along the longitudinal axis relative to the body, and a second position in which the button is permitted to move along the longitudinal axis relative to the body; a plurality of first indication elements circumferentially spaced around a first portion of the medicament delivery device; and a plurality of second indication elements circumferentially spaced around a second portion of the medicament delivery device, wherein the plurality of first indication elements and the plurality of second indication elements are moveable relative to one another between a first state in which at least one first indication element of the plurality of first indication elements is not axially aligned with at least one second indication element of the plurality of second indication elements, and a second state in which said at least one first indication element of the plurality of first indication elements is axially aligned with said at least one second indication element of the plurality of second indication elements, wherein the lock ring is configured such that when the lock ring is in the first position, the plurality of first indication elements and the plurality of second indication elements are in the first state, and when the lock ring is in the second position, the plurality of first indication elements and the plurality of second indication elements are in the second state, and wherein the second portion of the medicament delivery device comprises an indicator ring, wherein the indicator ring and the first portion of the medicament delivery device are rotatable relative to one another, and wherein the indicator ring comprises the plurality of second indication elements which is circumferentially spaced apart around the indicator ring and is separated by a plurality of masking portions configured to mask the plurality of first indication elements, such that:
when the plurality of first indication elements and the plurality of second indication elements are in the first state, each first indication element of the plurality of first indication elements is aligned with a respective one of the plurality of masking portions, such that the plurality of first indication elements is not visible, and
when the plurality of first indication elements and the plurality of second indication elements are in the second state, each first indication element of the plurality of first indication elements is not aligned with a respective one of the plurality of masking portions, such that the plurality of first indication elements is visible.

2 . The medicament delivery device of claim 1 , wherein each first indication element of the plurality of first indication elements is configured to be axially alignable with a respective second indication element of the plurality of second indication elements.

3 . The medicament delivery device of claim 1 , wherein the button is coupled to the lock ring such that the button is configured to rotate relative to the body about the longitudinal axis together with the lock ring.

4 . The medicament delivery device of claim 1 , wherein the first portion comprises at least a portion of the lock ring such that the plurality of first indication elements is arranged on the lock ring, or
wherein the first portion comprises at least a portion of the button such that the plurality of first indication elements is arranged on the button.

5 . The medicament delivery device of claim 1 , wherein the plurality of first indication elements and/or the plurality of second indication elements comprises a visual indicator.

6 . The medicament delivery device of claim 5 , wherein the visual indicator is printed.

7 . The medicament delivery device of claim 1 , wherein the first portion comprises a first color, and wherein the plurality of first indication elements each comprises a second color that is different from the first color.

8 . The medicament delivery device of claim 7 , wherein the second portion further comprises a plurality of third indication elements, wherein when the plurality of first indication elements and the plurality of second indication elements are in the first state, at least one first indication element of the plurality of first indication elements is axially aligned with at least one third indication element of the plurality of third indication elements, and when the plurality of first indication elements and second indication elements are in the second state, said at least one first indication element of the plurality of first indication elements is not axially aligned with said at least one third indication element of the plurality of third indication elements.

9 . The medicament delivery device of claim 1 , wherein the plurality of first indication elements and/or the plurality of second indication elements comprises a tactile indicator.

10 . The medicament delivery device of claim 9 , wherein the tactile indicator comprises a portion that protrudes from and/or comprises a different surface texture than the remainder of the first portion or the second portion respectively.

11 . The medicament delivery device of claim 1 , wherein each of the plurality of second indication elements comprises a cut-out, gap, aperture, transparent portion or translucent portion of the indicator ring, and each of the plurality of masking portions comprises a solid and/or opaque portion of the indicator ring.

12 . The medicament delivery device of claim 1 , wherein the indicator ring is configured to circumscribe the first portion of the medicament delivery device.

13 . The medicament delivery device of claim 1 , wherein the button or the lock ring comprises the indicator ring.

14 . The medicament delivery device of claim 1 , wherein the plurality of first indication elements each comprises a first shape and are circumferentially spaced apart around the first portion separated by a plurality of spacing portions also comprising the first shape, to form a first circumferential pattern of alternating first indication elements and spacing portions, and
wherein the plurality of second indication elements and the plurality of masking portions comprise the first shape and form a second circumferential pattern of alternating second indication elements and masking portions, such that the second circumferential pattern corresponds with the first circumferential pattern.

15 . The medicament delivery device of claim 1 , wherein the button is arrangeable in an extended position in which a proximal portion of the button is arranged to protrude from the lock ring, and a retracted position in which the proximal portion of the button is arranged inside the lock ring,
wherein when the lock ring is in the first position the button is arranged in the extended position, and when the lock ring is in the second position the button is permitted to move along the longitudinal axis in a distal direction towards the distal end towards the retracted position, and wherein the medicament delivery device further comprises: a spring configured to bias the button towards the extended position, and a spring guide configured to house and/or constrain the spring, wherein the spring guide comprises the indicator ring and a main body configured to

Assignees

• Genzyme Corp

Inventors

• Hee-Hanson Alexander
• Lever Thomas
• Parrott Michael
• Wilson Robert
• Wu Haiming

Classifications

• A61M5/3158 Primary

  performed by axially moving actuator operated by user, e.g. an injection button · CPC title

• A61M5/31536

  Blocking means to immobilize a selected dose, e.g. to administer equal doses · CPC title

• A61M5/31501

  Means for blocking or restricting the movement of the rod or piston (A61M5/5013 takes precedence) · CPC title

• A61M2005/2073

  preventing premature release, e.g. by making use of a safety lock · CPC title

• A61M2205/584

  having a color code · CPC title