Medicament container

• US 9,180,246 B2
• Filed: 09/08/2010
• Issued: 11/10/2015
• Est. Priority Date: 09/10/2009
• Status: Active Grant

• Current Assignee: Sanofi-Aventis Deutschland GmbH (Sanofi )
• Original Assignee: Sanofi-Aventis Deutschland GmbH (Sanofi )
• Inventors: Nagel, Thomas, Richter, Ren, Witt, Robert
• Primary Examiner(s): Douglas, Steven
• Application Number:
  US13/391,736
• Publication Number:
  US 20120291778A1
• Time in Patent Office: 1,889 Days
• Field of Search: 128/200.22, 128/200.14, 128/200.23, 128/200.24, 128/203.12, 222/94, 222/107, 222/386.5, 220/62.22, 220/62.21, 220/62.29, 220/62.11, 220/9.1, 220/9.2, 206/521, 141/114
• US Class Current: 1/1
• CPC Class Codes: A61M 11/008 by squeezing, e.g. using a flexible bottle or a bulb
• CPC Class Codes: A61M 11/06 of the injector type
• CPC Class Codes: A61M 2205/0266 Shape memory materials
• CPC Class Codes: A61M 2205/0288 Electro-rheological or magneto-rheological materials
• CPC Class Codes: A61M 2205/3368 Temperature
• CPC Class Codes: A61M 5/148 flexible, e.g. independent bagsA61M5/155 takes precedence

Abstract

The apparatus relates to a medicament container for a liquid medicament. The medicament container comprises a deformable bag with an outlet and at least one deformation member consisting of a shape memory alloy. The at least one deformation member is arranged to deform the deformable bag when the shape memory alloy passes from a first phase into a second phase by a phase transition, thereby changing the shape of the deformation member and squeezing a dose of the medicament through the outlet out of the bag.

Claims

1. A medicament container for a liquid medicament, the medicament container comprising:

a deformable bag with an outlet and a plurality of deformation members consisting of a shape memory alloy and arranged to deform the deformable bag when the shape memory alloy passes from a first phase into a second phase by a phase transition, thereby changing the shape of the deformation member and squeezing a dose of the medicament through the outlet out of the bag, wherein the plurality of deformation members are arranged consecutively along the deformable bag; and

temperature regulation means for changing the temperature of a deformation member to cause the phase transition of its shape memory alloy, wherein the temperature regulation means comprise electrical connections for each deformation member for connecting the plurality of deformation members to an electrical power supply.

2. The medicament container according to claim 1, characterized in that the shape memory alloy is a magnetic shape memory alloy.

3. The medicament container according to claim 1, characterized in that the plurality of deformation members stretch out over at least part of a longitudinal extension of the bag.

4. The medicament container according to claim 1, characterized in that the plurality of deformation members are located at an outer surface of the bag.

5. The medicament container according to claim 3, characterized in that each of the plurality of deformation members stretches out straightly in the first phase of its shape memory alloy and is rolled up spirally in the second phase of its shape memory alloy.

6. The medicament container according to claim 5, characterized by a core around which each of the plurality of deformation members is rolled up spirally in the second phase of its shape memory alloy.

7. The medicament container according to claim 3, characterized in that each of the plurality of deformation members stretches out as a helix around the bag, the radius of the helix being smaller in the second phase than in the first phase of the shape memory alloy.

8. The medicament container according to claim 7, characterized by a core stretching out over the axis of the helix.

9. An injection arrangement for delivering a liquid medicament comprising a medicament container according to claim 1.

10. An injection arrangement according to claim 9, characterized in that a valve and a hollow needle for piercing a patients skin are arranged at the outlet.