Medicament container assembly for a medicament delivery device

Patent metadata

Field	Value
Publication number	US-10583255-B2
Application number	US-201615220552-A
Country	US
Kind code	B2
Filing date	Jul 27, 2016
Priority date	Jul 27, 2016
Publication date	Mar 10, 2020
Grant date	Mar 10, 2020

Abstract

The present disclosure relates to a medicament container assembly ( 11 ) for a medicament delivery device, comprising: an elongated body ( 3 ) configured to receive a medicament container ( 17 ) and provided with a radially flexible first gripper arm ( 3 f ) extending in the axial direction of the body ( 3 ) and an oppositely arranged radially flexible second gripper arm ( 3 g ) extending in the axial direction of the body ( 3 ), wherein the first gripper arm ( 3 g ) and the second gripper arm ( 3 f ) are configured to support a neck portion of a medicament container, and a clamp member ( 13 ) configured to be arranged radially outside of the first gripper arm ( 3 f ) and the second gripper arm ( 3 g ), to press the first gripper arm ( 3 f ) and the second gripper arm ( 3 g ) radially inwards, to prevent proximal displacement of a medicament container.

First claim

I claim:

1. A medicament container assembly for a medicament delivery device, comprising:
an elongated body configured to receive a medicament container and provided with a radially flexible first gripper arm extending in the axial direction of the elongated body and an oppositely arranged radially flexible second gripper arm extending in the axial direction of the elongated body, wherein the first gripper arm and the second gripper arm are configured to support a neck portion of the medicament container, and
a clamp member configured to be moved distally over the first gripper arm and the second gripper arm into an installed position such that the first gripper arm and the second gripper arm are received through an open distal end of the clamp member, wherein in the installed position the clamp member is arranged radially outside of the first gripper arm and the second gripper arm to press the first gripper arm and the second gripper arm radially inwards to prevent proximal displacement of the medicament container,
wherein the elongated body has a support structure extending between and provided on opposite inner surfaces of the elongated body, wherein the support structure has a central tubular portion provided with an axially extending through-opening for receiving the medicament container, and wherein the first gripper arm and the second gripper arm form part of the central tubular portion,
wherein the clamp member has a proximal end flange extending radially inwards and configured to bear against a proximal end face of the first gripper arm and a proximal end face of the second gripper arm.

2. The medicament container assembly as claimed in claim 1 , wherein the clamp member has a through-opening configured to receive the central tubular portion.

3. The medicament container assembly as claimed in claim 1 , wherein the first gripper arm has a gripper portion provided at a distal end thereof.

4. The medicament container assembly as claimed in claim 1 , wherein the second gripper arm has a gripper portion provided at a distal end thereof.

5. The medicament container assembly as claimed in claim 1 , wherein the clamp member is tubular.

6. A sub-assembly for a medicament delivery device, comprising:
a medicament container assembly as claimed in claim 1 , and a
cap assembly for a medicament delivery device, comprising:
a cap having a tubular body defining an axially extending distal opening and configured to be mounted to a proximal end of a medicament delivery device, wherein the cap has a bottom structure defining a proximal end of the distal opening, wherein the bottom structure has a cam structure provided inside the tubular body, and wherein the tubular body has inner walls provided with radial recesses, and
an elongated squeeze member configured to be received in the distal opening of the tubular body, and having a longitudinally extending channel configured to receive a delivery member shield, and which squeeze member has radial arms flexible in the radial direction and forming part of a wall of the channel,
wherein the squeeze member has a proximal end face configured to cooperate with the cam structure of the cap, whereby axial displacement of the squeeze member from a first position in which the proximal end face bears against the cam structure to a second position in which the squeeze member is received further by the cap causes rotation of the squeeze member relative to the cap,
wherein the radial arms are configured to engage with a respective radial recess of the tubular body in the first position of the squeeze member, and wherein the radial arms are configured to disengage from the respective radial recess when the squeeze member is displaced from the first position to the second position and rotated, whereby the flexible radial arms are pressed into the channel by the inner walls of the tubular body, reducing a cross-sectional area of the channel,
wherein the cap assembly is configured to be assembled with the body of the medicament container assembly.

7. The sub-assembly as claimed in claim 6 , wherein the cam structure is annular in a radial plane and comprises a plurality of elevated portions with a cut-out having oppositely inclined surfaces provided between each adjacent pair of elevated portions, in the circumferential direction of the cam structure.

8. The sub-assembly as claimed in claim 6 , wherein the proximal end face of the squeeze member comprises a plurality of elevated portion with a cut-out having oppositely inclined surfaces provided between each adjacent pair of elevated portions of the proximal end face, in the circumferential direction of the squeeze member.

9. The sub-assembly as claimed in claim 8 , wherein each elevated portion of the squeeze member is configured to bear against a region of a cut-out of the cam structure closer to an elevated portion of the cam structure than to a lowest elevational point of the cut-out, in the first position of the squeeze member.

10. The sub-assembly as claimed in claim 8 , wherein the elevated portions of the squeeze member are configured to engage with the cut-outs of the cam structure in the second position of the squeeze member.

11. The sub-assembly as claimed in claim 6 , wherein at least two of the radial arms are arranged opposite to each other in a radial plane of the squeeze member, causing the two radial arms to move towards each other in the second position of the squeeze member.

12. The sub-assembly as claimed in claim 6 , wherein two of the radial arms are arranged in a first radial plane of the squeeze member, and wherein two other radial arms are arranged in a second radial plane axially spaced apart from the first radial plane.

13. The sub-assembly as claimed in claim 12 , wherein the two radial arms arranged in the first plane are arranged 90 degrees offset in the circumferential direction relative to the two arms arranged in the second plane.

14. The sub-assembly as claimed in claim 6 , wherein the radial recesses have inclined surfaces in the circumferential direction allowing the radial arms to disengage when the squeeze member is rotated while displaced from the first position to the second position.

15. The sub-assembly as claimed in claim 6 , wherein the radial arms have an increasing thickness in a direction from their point of attachment towards their end portions, wherein the thickness of each end portion is thicker than a wall thickness of the channel.

16. The sub-assembly as claimed in claim 6 , wherein the radial recesses extend in the longitudinal direction along a majority of the length of the inner walls of the tubular body.

17. A medicament delivery device comprising:
a medicament container assembly as claimed in claim 1 .

18. The medicament delivery device as claimed in claim 17 , comprising a housing, wherein the elongated body of the medicament container assembly is the housing.

19. The medicament delivery device as claimed in claim 17 , comprising a cap assembly comprising:
a cap having a tubular body defining an axially extending distal opening and configured to be mounted to a proximal end of a medicament delivery device, wherein the cap has a bottom structure defining a proximal end of the distal opening, wherein the bottom structure has a cam structure provided inside the tubular body, and wherein the tubular body has inner walls provided with radial recesses, and
an elongated squeeze member configured to be received in the distal opening of the tubular body, and having a longitudinally extending channel configured to re

Assignees

• Shl Medical Ag

Inventors

• Maxfield Brian

Classifications

• A61M5/24 Primary

  Ampoule syringes, i.e. syringes with needle for use in combination with replaceable ampoules or carpules, e.g. automatic {(ampoules or carpules A61J1/06)} · CPC title

• A61M5/3202

  Devices for protection of the needle before use, e.g. caps (A61M5/50 takes precedence; for infusion spikes A61M5/1626; protectors for sharps A61B50/3001) · CPC title

• A61M2005/2407

  from the rear · CPC title

• A61M2207/00

  Methods of manufacture, assembly or production · CPC title

• A61M5/3204

  Needle cap remover, i.e. devices to dislodge protection cover from needle or needle hub, e.g. deshielding devices · CPC title