Device for Administration

• US 20090076453A1
• Filed: 12/22/2006
• Published: 03/19/2009
• Est. Priority Date: 12/23/2005
• Status: Active Grant

• Current Assignee: Unomedical A/S
• Original Assignee: Unomedical A/S
• Inventors: Hordum, Elo, Mejlhede, Signe Thorning, Mogensen, Lasse W., Gyrn, Steffen
• Granted Patent: US 9,278,173 B2
• Time in Patent Office: Days
• US Class Current: 604/151
• CPC Class Codes: A61M 2005/14252 with needle insertion means
• CPC Class Codes: A61M 2005/14268 with a reusable and a disposable component
• CPC Class Codes: A61M 2005/1581 Right-angle needle-type devices
• CPC Class Codes: A61M 2005/1587 suitable for being connected to an infusion line after insertion into a patient
• CPC Class Codes: A61M 39/12 for joining a flexible tube to a rigid attachment
• CPC Class Codes: A61M 5/142 Pressure infusion, e.g. using pumps
• CPC Class Codes: A61M 5/14248 of the skin patch type
• CPC Class Codes: A61M 5/158 Needles for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body

Abstract

The application relates to a device for an intermittent or continuous administration of a therapeutical substance, such as insulin, comprising an injection part and a fluid delivery part (3,4). The fluid delivery part normally comprises a reservoir (4), transferal means e.g. in form of a pump and a house (3), and the injection part normally comprises a base plate (10), a cannula part (1,16) comprising a cannula (9) extending past the proximal side of the base plate and means for fixation of the base plate to the skin of the user. According to the application the device comprises a base plate (10), a cannula part (1, 1b) comprising a body providing a through-going opening leading liquid to a cannula (9) which cannula (9) extends past the proximal side of the base plate (10) and means (21) for fixation of the base plate to the skin of the user wherein a flexible part is arranged in an area between the subcutaneously positioned section of the cannula (9) and the fluid delivery part (3, 4).

Claims

1. A device for delivering fluid comprising an injection part and a fluid delivery part

the fluid delivery part comprising a reservoir, a pump and a housing, and

the injection part comprising:

a base plate connected to a mounting pad comprising an adhesive portion for fixation of the base plate to the skin of the user, the base plate further comprising a connector for releasably connecting to the fluid delivery part, the connector extending from a distal side of the base plate,

a cannula part comprising a body providing a through-going opening configured to lead liquid to a cannula, the cannula extending past a proximal side of the base plate during use, and

a flexible part positioned in an area between a subcutaneously positioned section of the cannula and the fluid delivery part.

2. A device according to claim 1, wherein the flexible part is integrated in the base plate.

3. A device according to claim 2, wherein the base plate is constructed either partially or completely from a flexible material.

4. A device according to claim 1, wherein the flexible part is integrated in the body of the cannula part providing a through-going opening leading liquid to a cannula.

5. A device according to claim 4, wherein the body of the cannula part is constructed either partially or completely from a flexible material.

6. A device according to claim 1, wherein the flexible part is integrated in the fluid delivery part.

7. A device according to claim 1, wherein the flexible part is a separate unit placed between the fluid delivery part and the injection part.

8. A device according to claim 7, wherein the separate unit comprises partially or completely flexible material.

9. A device according to claim 1, wherein the fluid delivery part and the injection part releasably connected.

10. A device according to claim 1 wherein the housing of the fluid delivery part also provides a housing for the injection part.

11. A device according to claim 1, wherein the flexible part is constructed of an area with reduced material dimensions in relation to the injection part.

12. A device according to claim 1, wherein the flexible part is constructed of an area made by a softer and more flexible material relative to the injection part.

13. A device according to claim 1, wherein the flexible part comprises a material configured for being pleated or folded or corrugated for extension and compression of the flexible part.

14. A device according to claim 1, wherein the cannula and the delivery part are not interconnected by non-flexible areas.

15. A device according to claim 1, wherein a fluid tight connection leading fluid from the reservoir to the cannula is formed when the delivery part and the injection part are joined together.

16. A device according to claim 15, comprising a sealing member configured to seal an opening of the reservoir to prevent access of micro organisms to the reservoir of the fluid delivery part during periods when the fluid delivery part and the injection part are separated.

17. A device according to claim 16, wherein the reservoir has two positions, a first position wherein an outlet from the reservoir is blocked with a first barrier which is not permeable for microorganisms and an inlet of the through-going opening in the cannula part is blocked with a second barrier which is not permeable for microorganisms, and a second position wherein an open fluid connection is formed between the reservoir and the through-going opening in the cannula part.

18. A device according to claim 17, wherein one or both of the barriers comprise a material which can be penetrated by a needle-like object where an opening formed in the material re-closes on retraction of the needle-like object.

19. A device according to claim 18, characterized in that the needle-like object is blunt.

20. A device according to claim 18, characterized in that the needle-like object is sharp-pointed.

21. A device according to claim 17, wherein one or both of the barriers comprise a hard surface which is moved forming an opening in an area positioned between an outlet of an outlet pipe and the inlet of the through-going fluid path.

22. A device according to claim 1, wherein the adhesive portion for fixation of the base plate to the skin of the user comprises a mounting pad adhered to the proximal side of the base plate to a proximal side of the cannula part.

23. A device according to claim 2, wherein the base plate comprises a lattice with a peripheral coherent part and one or more bars interconnecting the peripheral part.

24. A device according to claim 23, wherein the base plate has a round or oval peripheral part and the bars have one end attached to the peripheral area and a second end attached to a central area.

25. A device according to claim 23, wherein the base plate has three or more bars.

26. (canceled)

27. (canceled)

32. A device for delivering fluid comprising an injection part and a fluid delivery part

the fluid delivery part comprising a reservoir and a housing, and

the injection part comprising:

a base plate connected to a mounting pad comprising an adhesive portion for fixation of the base plate to the skin of the user, the base plate further comprising a connector for releasably connecting to the fluid delivery part, the connector extending from a distal side of the base plate,

a cannula part comprising a body providing a through-going opening configured to receive a cannula therethrough, and

a flexible part positioned between the cannula part and the fluid delivery part.

28. A device according to claim 33, wherein the cannula comprises a cannula housing having a first end including solid walls and a protective seal protecting the entrance to the cannula.

29. A device according to claim 32, wherein the base plate comprises a first part of a cannula part configured to position a second part comprising a cannula to be inserted with an injection needle.

30. A device according to claim 29, wherein the first part of the cannula part comprises a locking mechanism configured to releasably lock the second part in a desired position.

31. A device according to claim 33, wherein the cannula is inserted with an inserter device comprising a surface corresponding to a surface of the base plate, the inserter device configured to position the cannula and the body to provide a fluid path to the cannula from the reservoir.

33. The delivery device of claim 32, comprising a cannula configured for insertion into and at least partially through the opening in the cannula part, at least a portion of the cannula extending past a proximal side of the base plate during use.