Cap assembly for a medicament delivery device
AssigneeShl Medical AG
InventorBrian Maxfield
Life of this patent
Estimating the term…
Abstract
A cap assembly for a medicament delivery device is disclosed. The cap assembly includes a cap configured to be mounted to a proximal end of the medicament delivery device, wherein the cap comprises a cam surface. The cap assembly further includes a squeezer comprising (i) a body defining a first longitudinally extending channel configured to receive a delivery member shield and (ii) a plurality of radial arms flexible in a radial direction. The cap assembly also includes a spinner comprising (i) a proximal end face configured to cooperate with the cam surface of the cap, (ii) a body defining a second longitudinally extending channel configured to receive the squeezer, and (iii) a plurality of holes in the body of the spinner configured to receive the plurality of radial arms of the squeezer.
Claims17
An assembly for a medicament delivery device comprising:
- a body having a longitudinal axis, a proximal end with an inner surface and a support structure comprising a tubular portion, where the support structure is axially fixed to the inner surface of the body;
- and
- a clamp slidably positioned relative to the tubular portion, where the clamp comprises a proximal end flange at its proximal end, and where the clamp has a first axial position, a second axial position, and an end position such that the end position is achieved during assemblage of the medicament delivery device,
- wherein when the clamp transitions from the first axial position to the second axial position, the clamp moves distally relative to the support structure and slidably engages around the tubular portion causing a flexible gripper arm on the support structure to flex radially inward, wherein the flexible gripper arm on the support structure continues to flex radially inward as the clamp transitions distally from the second axial position to the end position, and wherein the proximal end flange of the clamp bears against a proximal end of the tubular portion in the end position.
An assembly for a medicament delivery device that secures a medicament container within the medicament delivery device, where the assembly comprises:
- a body having a proximal end with an inner surface and a support structure comprising a tubular portion, where the support structure is axially fixed to the inner surface of the body;
- an inner seat positioned within the tubular portion, where the inner seat is configured to accept a proximal end of a medicament container;
- and
- a clamp comprising two flexible arms in an exterior surface of the clamp, a proximal end flange at its proximal end, and a distal end having an outside diameter that is smaller than an inner diameter of the inner seat, where the clamp has a first axial position, and a second axial position, and an end position relative to the proximal end of the body such that the end position is achieved during assemblage of the medicament delivery device,
- wherein when the clamp moves distally the flexible arms slidably engage the inner seat causing the flexible arms to transition from an open position to a closed position, wherein the flexible arms remain in the closed position as the clamp moves distally from the second axial position to the end position, and wherein the proximal end flange of the clamp bears against a proximal end of the tubular portion in the end position.
A method of securing a medicament container within a medicament delivery device comprising:
- providing a body having a proximal end with an inner surface and a support structure comprising a tubular portion, where the support structure is axially fixed to the inner surface of the body and comprises an inner seat, where a proximal portion of a syringe is positioned within the inner seat;
- providing a clamp comprising a proximal end flange at its proximal end and a distal end having an outside diameter that is smaller than an inner diameter of the inner seat and comprising a flexible arm in an exterior surface of the clamp having a gripper;
- moving the clamp axially and distally relative to both the inner seat and the syringe to cause the clamp to slidably engage an inner surface of the inner seat;
- moving the flexible arm radially inward as the clamp engages the inner surface to cause the gripper to contact and secure the syringe within the body;
- and
- maintaining the flexible arm being moved radially inward as the clamp moves distally to an end position such that the end position is achieved during assemblage of the medicament delivery device, wherein the proximal end flange of the clamp bears against a proximal end of the tubular portion in the end position.
Dependencies are inferred from the claim text.