Medicament delivery device

Patent metadata

Field	Value
Publication number	US-10159802-B2
Application number	US-201415028431-A
Country	US
Kind code	B2
Filing date	Oct 8, 2014
Priority date	Oct 10, 2013
Publication date	Dec 25, 2018
Grant date	Dec 25, 2018

Abstract

A medicament delivery device includes a housing, a container holder for a medicament container, a first energy-accumulating member for powering a dispensing of a medicament from the medicament container, a releasable first locking arrangement for locking the first energy-accumulating member in a first energy-storing position, a second energy-accumulating member for powering a mixing of the medicament in the medicament container, and a releasable second locking arrangement for locking the second energy-accumulating member in a second energy-storing position. The second locking arrangement in a first state prevents the first locking arrangement from being released, and in a second state permits the first locking arrangement to be released.

First claim

The invention claimed is:

1. A medicament delivery device, comprising:
a housing;
a container holder that is configured for a medicament container and that is arranged in the housing;
a first energy-accumulating member for powering dispensing of a medicament from the medicament container;
a releasable first locking arrangement for locking the first energy-accumulating member in a first energy-storing position, wherein the releasable first locking arrangement is slidably connected to an outer side of the housing;
a second energy-accumulating member for powering mixing of the medicament; and
a releasable second locking arrangement for locking the second energy-accumulating member in a second energy-storing position, wherein the second locking arrangement is slidably connected along the outer side of the housing and in a first state prevents the first locking arrangement from being released, and the second locking arrangement in a second state permits the first locking arrangement to be released.

2. The medicament delivery device of claim 1 , wherein at least one of the releasable first locking arrangement and releasable second locking arrangement comprises a slidable button that is slid aside to use the device.

3. A medicament delivery device, comprising:
a housing;
a container holder that is configured for a medicament container and that is arranged in the housing;
a first energy-accumulating member for powering dispensing of a medicament from the medicament container;
a releasable first locking arrangement for locking the first energy-accumulating member in a first energy-storing position;
a second energy-accumulating member for powering mixing of the medicament; and
a releasable second locking arrangement for locking the second energy-accumulating member in a second energy-storing position, wherein the second locking arrangement in a first state prevents the first locking arrangement from being released, and the second locking arrangement in a second state permits the first locking arrangement to be released;
wherein the housing has proximal and distal end portions, with a longitudinal axis extending between and along the proximal and distal end portions; the container holder is arranged in the housing at the proximal end portion; the medicament delivery device further comprises a plunger that is being axially movable along the longitudinal axis into the container holder; the first energy accumulating member is adapted to displace the plunger along the longitudinal axis toward the proximal end portion for powering dispensing of the medicament when released from the first energy-storing position; the container holder is configured to accommodate a medicament container that is adapted for connection of a medicament delivery member at a first end of the medicament container and that comprises a first piston sealingly and slidably arranged inside a second end portion of the medicament container opposite to the first end portion and a second piston slidably arranged inside an intermediate portion of the medicament container; the plunger comprises an outer plunger rod and an inner plunger rod arranged at least partially inside the outer plunger rod; and the second energy-accumulating member is arranged to actuate the inner plunger rod for powering mixing of the medicament when released from the second energy-storing position.

4. The medicament delivery device of claim 3 , wherein the second energy-accumulating member is arranged inside the outer plunger rod and comprises a compression spring that extends along the longitudinal axis and that in the second energy-storing position is subjected to an axial compression; the second locking arrangement comprises a compression rod that extends along the longitudinal axis; and when the second locking arrangement is in the second locking position, the compression rod engages the compression spring and the distal end portion of the housing, thereby generating the axial compression.

5. The medicament delivery device of claim 3 , wherein the inner plunger rod is adapted to engage the outer plunger rod when the inner plunger rod is positioned in an end position toward the proximal end portion.

6. The medicament delivery device of claim 5 , wherein the inner plunger rod comprises at least one resilient projection adapted to engage a recess in the outer plunger rod when the inner plunger rod is positioned in the end position.

7. The medicament delivery device of claim 6 , wherein the outer plunger rod includes a series of elevations and/or depressions; and the resilient projection is adapted to run in abutment along the series of elevations and/or depressions when the inner plunger rod is moved toward the end position, thereby producing an audible and/or tactile feedback to a user of the medicament delivery device.

8. A medicament delivery device, comprising:
a housing;
a container holder that is configured for a medicament container and that is arranged in the housing;
a first energy-accumulating member for powering dispensing of a medicament from the medicament container;
a releasable first locking arrangement for locking the first energy-accumulating member in a first energy-storing position;
a second energy-accumulating member for powering mixing of the medicament; and
a releasable second locking arrangement for locking the second energy-accumulating member in a second energy-storing position, wherein the second locking arrangement in a first state prevents the first locking arrangement from being released, and the second locking arrangement in a second state permits the first locking arrangement to be released;
wherein the first locking arrangement comprises a first release mechanism movable between a first locking position locking the first energy-accumulating member in the first energy-storing position and a first release position releasing the first energy-accumulating member from the first energy-storing position; the second locking arrangement comprises a second release mechanism movable between a second locking position locking the second energy-accumulating member in the second energy-storing position and a second release position releasing the second energy-accumulating member from the second energy-storing position; in the first state the second release mechanism in the second locking position prevents the first release mechanism from being moved to the first release position; and in the second state the second release mechanism in the second release position permits the first release mechanism to be moved to the first release position.

9. The medicament delivery device of claim 8 , wherein the first release mechanism is connected to the housing such that in the first locking position the first locking arrangement is secured to the housing to maintain the first energy-accumulating member in the first energy storing position; and the second release mechanism is connected to the housing such that in the second locking position the second locking arrangement is secured to the housing to maintain the second energy-accumulating member in the second energy storing position.

10. The medicament delivery device of claim 8 , wherein the first release mechanism is manually movable between the first locking position and the first release position; and the second release mechanism is manually movable between the second locking position and the second release position.

11. The medicament delivery device of claim 8 , wherein the housing has proximal and distal end portions, with a longitudinal axis extending between and along the proximal and distal end portions; the container holder is arranged in the housing at the proximal end portion; the medicament delive

Assignees

• Carebay Europe Ltd

Inventors

• Olson Stephan

Classifications

• A61M2205/581

  by audible feedback · CPC title

• A61M5/31585

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

• A61M2202/04

  Liquids · CPC title

• A61M5/31583

  based on rotational translation, i.e. movement of piston rod is caused by relative rotation between the user activated actuator and the piston rod · CPC title

• A61M2205/8281

  spring operated · CPC title