DOSE DISPLAY MECHANISM FOR A DRUG DELIVERY DEVICE

• US 20130016105A1
• Filed: 12/01/2010
• Published: 01/17/2013
• Est. Priority Date: 12/02/2009
• Status: Active Grant

• Current Assignee: Sanofi-Aventis Deutschland GmbH (Sanofi )
• Original Assignee: Sanofi-Aventis Deutschland GmbH (Sanofi )
• Inventors: Raab, Steffen, Arnhold, Sandra
• Granted Patent: US 9,463,284 B2
• Time in Patent Office: Days
• US Class Current: 345/440
• CPC Class Codes: A61M 2005/3125 specific display means, e.g. to indicate dose setting
• CPC Class Codes: A61M 2005/3126 Specific display means related to dosing
• CPC Class Codes: A61M 2205/583 by visual feedback
• CPC Class Codes: A61M 2205/586 Ergonomic details therefor, e.g. specific ergonomics for left or right-handed users
• CPC Class Codes: A61M 5/31551 including axial movement of dose setting member
• CPC Class Codes: G06M 1/22 for visual indication of the result of count on counting mechanisms, e.g. by window with magnifying lens

Abstract

The present invention relates to a drug delivery device, in particular to the dose display mechanism of a drug delivery device comprising: a housing of substantially tubular shape and having at least a first dose displaying window, a dose setting dial rotatably arranged in the housing) and comprising a first and a second helical dose indicating scale on its peripheral surface, wherein the information contents of the first dose indicating scale and the second dose indicating scale are arranged in different orientations.

Claims

1. A dose display mechanism for a drug delivery device, the display mechanism comprising:

a housing of substantially tubular shape and having at least a first dose displaying window,

a dose setting dial rotatably arranged in the housing and comprising a first and a second helical dose indicating scale on its peripheral surface,

wherein the information contents of the first dose indicating scale and the second dose indicating scale are arranged in different orientations, and wherein the size of the at least first dose displaying window directly matches with the size of the information contents.

2. The dose display mechanism according to claim 1, wherein first and second dose indicating scales are axially offset relative to each other.

3. The dose display mechanism according to claim 1, wherein first and the second dose indicating scales are circumferentially offset relative to each other.

4. The dose display mechanism according to claim 1, wherein the information contents of first and second dose indicating scales are substantially equal.

5. The dose display mechanism according to claim 1, wherein the information content of the first dose indicating scale is flipped by approximately 180°

relative to the orientation of the information content of the second dose indicating scale.

6. The dose display mechanism according to claim 1, wherein first and second dose indicating scales extend along parallel helices on the common dose setting dial.

7. The dose display mechanism according to claim 1, wherein the graduation of first and second dose indicating scales extends in the same direction.

8. The dose display mechanism according to claim 1, wherein the display window comprises first and second adjacently arranged display sections, wherein the first display section overlaps with the first dose indicating scale and wherein the second display section overlaps with the second dose indicating scale.

9. The dose display mechanism according to claim 8, further comprising a cover element adapted to selectively cover the first or the second display section, respectively.

10. The dose display element according to claim 1, wherein the housing comprises a second display window axially and/or circumferentially offset from the first display window, and wherein first and second display windows substantially overlap with first and second dose indicating scales, respectively.

11. The dose display mechanism according to claim 10, wherein first and second display windows are offset in circumferential direction relative to each other by substantially 180°

.

12. The dose display mechanism according to claim 10, wherein first and second display windows are axially and circumferentially offset.

13. A drive mechanism for a drug delivery device comprising a dose display mechanism according to claim 1.

14. A drug delivery device for dispensing of a pre-defined dose of a medicinal product, being selectively configurable for left- and right-handed users and comprising a dose display mechanism according to claim 1.

15. The drug delivery device according to claim 14, further comprising a cartridge filled with the medicinal product.