Lock mechanism for a medicament delivery device
AssigneeShl Medical AG
InventorsGary Calderwood, Björn Krohn, Joakim Lindholm, Tilde Rolder
Life of this patent
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Abstract
The application describes lock mechanisms for medicament delivery devices. The lock mechanisms extend from a proximal end to a distal end in an axial direction relative to a longitudinal axis, the lock mechanisms can have a housing, a medicament delivery member guard and a cap. The lock mechanisms can also include a protrusion extending in a radial direction relative to the longitudinal axis and a recess or cut-out. Various related medicament delivery devices, medicament delivery device components, sub-assemblies and methods are also described.
Claims18
A lock mechanism for a medicament delivery device, the lock mechanism extending from a proximal end to a distal end in an axial direction relative to a longitudinal axis, the lock mechanism comprising a housing, a medicament delivery member guard and a cap,
- wherein one of the medicament delivery member guard and the housing comprises a flexible arm, the flexible arm comprising a protrusion at a proximal end of the flexible arm and extending in a radial direction relative to the longitudinal axis,
- wherein the other of the medicament delivery member guard and the housing comprises a recess or cut-out,
- wherein the protrusion of the flexible arm is configured to be received in the recess or cut-out,
- wherein the flexible arm is between the cap and the other of the medicament delivery member guard and the housing, and
- wherein the cap is adjacent to the flexible arm in a radial direction relative to the longitudinal axis.
A lock mechanism for a medicament delivery device, the lock mechanism extending from a proximal end to a distal end in an axial direction relative to a longitudinal axis, the lock mechanism comprising a housing, a medicament delivery member guard and a cap,
- wherein one of the medicament delivery member guard and the cap comprises a protrusion extending in a radial direction relative to the longitudinal axis,
- wherein the other of the medicament delivery member guard and the cap comprises a recess or cut-out,
- wherein the protrusion is in the recess or cut-out,
- wherein the medicament delivery member guard is moveable in a direction of a longitudinal axis relative to the housing from a locked position to an unlocked position, wherein in the locked position, movement of the protrusion relative to the recess or cut-out is restricted by a wall of the housing, and in the unlocked position, the movement of the protrusion relative to the recess or cut-out is no longer restricted by the wall of the housing, thereby allowing the protrusion to be moved out of the recess or cut-out and the cap to be removed from the medicament delivery member guard.
A lock mechanism for a medicament delivery device, the lock mechanism extending from a proximal end to a distal end in an axial direction relative to a longitudinal axis of the medicament delivery device, where the lock mechanism comprises:
- a housing;
- a medicament delivery member guard;
- and
- a cap,
- wherein one of the medicament delivery member guard and the housing comprises a flexible arm, the flexible arm comprising a protrusion at a proximal end of the flexible arm and extending in a radial direction relative to the longitudinal axis,
- wherein the other of the medicament delivery member guard and the housing comprises a first recess or cut-out and a second recess or cut-out,
- wherein the protrusion is configured to be received in the first recess or cut-out,
- wherein the flexible arm is between the cap and the other of the medicament delivery member guard and the housing, and
- wherein the cap is adjacent to the flexible arm in a radial direction relative to the longitudinal axis.
Dependencies are inferred from the claim text.