Injection Device for Infusion Set

• US 20080039794A1
• Filed: 03/21/2005
• Published: 02/14/2008
• Est. Priority Date: 03/26/2004
• Status: Active Grant

• Current Assignee: Unomedical A/S
• Original Assignee: Unomedical A/S
• Inventors: Mogensen, Lasse W., Kornerup, Grete, Goransson, Magnus W.
• Granted Patent: US 8,221,355 B2
• Time in Patent Office: Days
• US Class Current: 604/136
• CPC Class Codes: A61M 2005/1585 Needle inserters
• CPC Class Codes: A61M 2005/1587 suitable for being connected to an infusion line after insertion into a patient
• CPC Class Codes: A61M 37/00 Other apparatus for introducing media into the body for reproduction or fertilisation A61B17/425; apparatus for iontophoresis or cataphoresis A61N1/30; Percutany, i.e. introducing medicines into the body by diffusion through the skin salt baths A61H33/04
• 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 invention relates to an injector device for an infusion set for intermittent or continuous administration of a therapeutical substance, such as insulin. The injector device for the subcutaneous introduction of the cannula of an infusion part into the skin of a patient comprises a housing, a back, longitudinally extending guiding means, a member which is longitudinally slidable within the housing, an insertion needle for insertion of the cannula, a spring located between the back of the housing and the longitudinally slidable member, locking means for maintaining the spring in a compressed state and release means for disengaging the locking means. The device further comprises a pivoting member which can be swung from a position in which the pivoting member allows for insertion of the needle into a position in which it embraces the needle.

Claims

1. An injector device for the subcutaneous introduction of a cannula of an infusion part into the skin of a patient, said device comprising:

a housing including a back and longitudinally extending guiding means;

a slidable member longitudinally slidable within the housing;

an insertion needle for insertion of said cannula;

a spring located between the back of the housing and the longitudinally slidable member;

first locking means for maintaining the spring in a compressed state;

release means for disengaging the locking means; and

a pivoting member fastened to the slidable member, the pivoting member being pivotable from a position in which the pivoting member allows for insertion of the needle into a position in which the pivoting member embraces the needle.

2. An injector device according to claim 1, wherein the position where the pivoting member allows for insertion of the needle is oriented at an insertion angle of between about 90°

and about 180°

.

3. An injector device according to claim 1, wherein the pivoting member is placed approximately parallel to the housing when the pivoting member is in the position for embracing the needle.

4. An injector device according to claim 1, wherein the pivoting member is oriented at a second angle with respect to the housing of between about 0°

and about 180°

when the pivoting member is in the position for embracing the needle.

5. An injector device according to claim 1, wherein the pivoting member can embrace the needle when the slidable member is in a forward position and the spring is in a released state.

6. An injector device according to claim 1, wherein the pivoting member is pivotable from the insertion position substantially orthogonal to a main axis of the application device, about 180 degrees to another position substantially orthogonal to the main axis for embracing the needle, wherein the pivoting member is securable in the position embracing the needle.

7. An injector device according to claim 1, wherein the needle is secured in the pivoting member and destroyed when the pivoting member is brought to a final embracing position.

8. An injector device according to claim 1, wherein the device further comprises a second locking means for maintaining the pivoting member in the final embracing position.

9. An injector device according to claim 1, wherein the infusion part is fastened to an adhesive support having an adhesive surface which adhesive surface is provided with a release liner.

10. An injector device according to claim 9, wherein the pivoting member has fixing means for releasably fastening a part of the adhesive support to the pivoting member.

11. An injector device according to claim 9 wherein a projecting part of the release liner of the adhesive support is fastened to the housing.

12. An injector device according to claim 9, wherein the release liner of the adhesive support comprises at least two separate pieces.

13. An injector device according to claim 12, wherein each piece of the release liner has at least one projecting part.

14. An injector device according to claim 13, wherein the projecting part of a first piece of the release liner is attached to the pivoting member during insertion and the projecting part of a second piece of release liner is attached to the housing during insertion.

15. An injector device according to claim 1, wherein the housing comprises stopping means.

16. An injector device according to claim 1, wherein the slidable member comprises a lattice structure.

17. An injector device according to claim 1, wherein the release means for disengaging the first locking means comprises two positions placed on opposite sides of the housing.

18. The injector device of claim 2, wherein the insertion angle is about 90°

.

19. The injector device of claim 4, wherein the embracing angle is between about 90°

and about 180°

.

20. The injector device of claim 1, wherein the pivoting member can embrace the needle when the slidable member is in a retracted position and the spring is in a tightened state.

21. The injector device of claim 15, wherein the stopping means is a stopping tab.

22. An injector device for inserting a portion of a cannula of a medical device into the skin of a patient, the device comprising:

a housing having a first end extending between a pair of arms;

a slidable member at least partially received in the housing and being longitudinally slidable within the housing;

an insertion member connected to the slidable member, the insertion member being adapted for insertion of the cannula into the skin of the patient; and

a pivoting member operably connected to the slidable member, the pivoting member being pivotable from an insertion position wherein the insertion member is insertable into the skin of the patient and a covering position wherein the insertion member is at least partially covered by the pivoting member.

23. The injection device of claim 22, further comprising a biasing member for biasing the slidable member with respect to the housing.

24. The injection device of claim 23, further comprising a first locking member for releasably maintaining the biasing member in a compressed state.