INJECTION DEVICE WITH SECURED DOSING BUTTON

• US 20090054846A1
• Filed: 07/11/2008
• Published: 02/26/2009
• Est. Priority Date: 01/17/2006
• Status: Active Grant

• Current Assignee: Ypsomed AG (Ypsomed Holding AG)
• Original Assignee: TecPharma Licensing AG (Ypsomed Holding AG)
• Inventors: Moser, Ulrich, Schrul, Christian, Hirschel, Jurg
• Granted Patent: US 7,976,509 B2
• Time in Patent Office: Days
• US Class Current: 604/191
• CPC Class Codes: A61M 5/2448 comprising means for injection of two or more media, e.g. by mixing
• CPC Class Codes: A61M 5/3146 Priming, e.g. purging, reducing backlash or clearance
• CPC Class Codes: A61M 5/31555 by purely axial movement of dose setting member, e.g. during setting or filling of a syringe
• CPC Class Codes: A61M 5/3158 performed by axially moving actuator operated by user, e.g. an injection button
• CPC Class Codes: A61M 5/31591 Single dose, i.e. individually set dose administered only once from the same medicament reservoir, e.g. including single stroke limiting means
• CPC Class Codes: A61M 5/502 for blocking the piston

Abstract

An injection device including an accommodating device for a substance to be delivered, e.g. a vial or ampoule holder, which is insertable into and can be displaced relative to the injection device or a part thereof; an adjusting element for adjusting a dose to be administered from the injection device, which element is inserted in the injection device; and a coupling element for coupling the accommodating device to the adjusting element so that the adjusting element is at least partially moved out from the injection device when the accommodating device is inserted. A method for preparing an injection device using a dual chamber vial or ampoule to administer a substance, wherein the method involves using an adjusting device which is released, extended or pushed out from the injection device not before or after the substance to be administered from dual chamber vial or ampoule is mixed.

Claims

1. An injection device comprising:

an accommodating device for accommodating a substance to be delivered, the accommodating device insertable into and displaceable relative to the injection device;

an adjusting element for adjusting a dose to be administered from the injection device, which element is at least partially in the injection device; and

a coupling element for coupling the accommodating device to the adjusting element so that the adjusting element is moved at least partially out of the injection device when the accommodating device is inserted into the injection device.

2. The injection device according to claim 1, wherein the accommodating device accommodates an ampoule comprising two chambers each containing a substance to mixed with the other.

3. The injection device according to claim 2, wherein the adjusting device is moved out of the injection device only in conjunction with the mixing of the substances.

4. A method for preparing an injection device comprising a dual chamber ampoule, each chamber containing a substance to mixed with the other substance, an accommodating device for receiving the ampoule, the accommodating device displaceable relative to the injection device, an adjusting element for adjusting a dose of the mixed substances to be administered from the injection device, the adjusting element at least partially in the injection device, and a coupling element for coupling the accommodating device to the adjusting element so that the adjusting element is moved at least partially out of the injection device when the accommodating device is inserted into the injection device, the method comprising the steps of:

placing the ampoule into the accommodating device, thereby causing the adjusting element to be displaced at least partially out of the injection device only in conjunction with the mixing of the substances; and

using the displaced adjusting element to adjust a dose to be administered and to administer the adjusted dose.

5. An injection device comprising a holder device for a substance to be administered which can be displaced relative to the injection device or a part thereof, a setting element for setting a dose to be administered from the injection device, wherein the setting element may be pushed into the injection device, and a coupling element for coupling the holder device with the setting element so that the setting element is pushed at least partially out of the injection device during a movement introducing the holder device.

6. The injection device as claimed in claim 5, wherein the setting element is a rotating knob.

7. The injection device as claimed in claim 6, wherein the knob is mounted so that it is locked to prevent it from rotating when the knob has been pushed into or out of the injection device.

8. The injection device as claimed in claim 5, wherein the setting element is coupled with the injection device so that the setting element can no longer be pushed out having been pushed into the injection device.

9. The injection device as claimed in claim 5, further comprising a plunger rod or toothed rack which can be coupled with the setting element by a positive connection during or after pushing the setting element in or out.

10. The injection device as claimed in claim 5, wherein at least one marking is on the setting element to display the dose.

11. The injection device as claimed in claim 5, further comprising a two-chamber ampoule disposed in the holder device.

12. A method of preparing an injection device for administering a substance, wherein a setting device is not moved out of the injection device until during or after a mixing operation involving a two-chamber ampoule.

13. An injection device comprising a holder device which can moved into the injection device;

a dispensing element for dispensing a dose to be administered from the injection device, which is at least partially in the injection device; and

a coupling element for coupling the holder device with the dispensing element so that the dispensing element is moved at least partially out of the injection device during a movement the holder device into the injection device.

14. The injection device as claimed in claim 13, wherein the dispensing element is movable at least partially in and out of the injection device axially along a longitudinal axis of the injection device.

15. The injection device as claimed in claim 14, wherein the dispensing element is not operable when not moved out.

16. The injection device as claimed in claim 14, wherein the dispensing element is coupled with the injection device so that the dispensing element can no longer be moved out of the injection device after being moved into the injection device.

17. The injection device as claimed in claim 14, further comprising a toothed rod which can be coupled with the dispensing element by a positive connection during or after an in or out movement of the dispensing element.

18. The injection device as claimed in claim 14, wherein at least one marking is on the dispensing element for displaying a dose.

19. The injection device as claimed in claim 14, wherein the dispensing element is designed for setting a dose to be dispensed from the injection device.

20. The injection device as claimed in claim 14, further comprising a two-chamber ampoule in the holder device.

21. An injection device comprising:

an ampoule holder moved into the injection device;

a setting element for setting a dose to be dispensed from the injection device, which can be moved in and out relative to the injection device; and

a coupling element for coupling the holder with the setting element so that the setting element is at least partially moved out of the injection device during a movement of the holder device into the injection device.

22. The injection device as claimed in claim 21, wherein the setting element is a rotating knob.

23. The injection device as claimed in claim 22, wherein the setting element is mounted so that it is lockable to prevent it from rotating when in out of the injection device.

24. A method for preparing an injection device for administering an injection, the injection device comprising a two chamber ampoule, each chamber containing a substance to be mixed with the other substance, said method comprising moving a dispensing structure of the injection device, the dispending structure not being moved until during or after mixing of the substances.