Cannula device

• US 8,062,250 B2
• Filed: 12/23/2004
• Issued: 11/22/2011
• Est. Priority Date: 08/10/2004
• Status: Active Grant

• Current Assignee: Unomedical A/S
• Original Assignee: Unomedical A/S
• Inventors: Göransson, Magnus Walter, Mogensen, Lasse Wesltoft
• Primary Examiner(s): Lucchesi; Nicholas D
• Assistant Examiner(s): Ranade; Diva
• Application Number:
  US11/023,840
• Publication Number:
  US 20060036214A1
• Time in Patent Office: 2,525 Days
• Field of Search: 604/93.01
• US Class Current: 604/93.01
• CPC Class Codes: A61M 2005/1581 Right-angle needle-type devices
• 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 5/158 Needles for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body

Abstract

A cannula device for infusion sets is provided. The cannula device includes a housing and at least one membrane mounted to the housing and adapted for receiving a piercing member of a connector. The cannula device further includes a cannula mounted to the housing. The cannula device is adapted to removably attach to a base part of an infusion set. The cannula device can receive the piercing member from a first receiving direction and from a second receiving direction different from the first receiving direction, providing fluid communication between the piercing member and the cannula mounted to the housing.

Claims

1. A cannula device for mounting to a base part of an infusion set, said device comprising:

a housing and at least one membrane adapted to receive a piercing member; and

a cannula mounted to said housing;

wherein said cannula device is adapted to removable attach to said base part in a first attachment configuration or a second attachment configuration and wherein said cannula device can receive said piercing member of a connector from a first receiving direction in the first attachment configuration and from a second receiving direction in the second attachment configuration, the second receiving direction being different from said first direction providing fluid communication between said piercing member and said cannula.

2. The cannula device according to claim 1 wherein said at least one membrane further comprises a first membrane oriented generally perpendicular to said first receiving direction and a second membrane oriented generally perpendicular to said second receiving direction.

3. The cannula device according to claim 1 wherein said at least one membrane further comprises a single membrane oriented to intersect both said first and second receiving directions.

4. The cannula device according to claim 1 wherein an angle between the first and the second receiving directions is at least 45°

.

5. The cannula device according to claim 4 wherein said angle is at least 60°

.

6. The cannula device of claim 4 wherein said angle is at least 75°

.

7. The cannula device of claim 4 wherein said angle is at least 85°

.

8. The cannula device according to claim 1 wherein the cannula device is adapted to receive the piercing member from a third direction.

9. The cannula device according to claim 8 wherein an angle between said first direction and said third direction is between about 5°

and about 175°

.

10. The cannula device of claim 8 wherein an angle between said first direction and said third direction angle is between about 30°

and about 150°

.

11. The cannula device according to claim 1 wherein said at least one membrane is self-sealing.

12. The cannula device according to claim 11, wherein said at least one membrane is made of silicone.

13. The cannula device according to claim 1, wherein said housing defines a plurality of cavities.

14. The cannula device according to claim 1 wherein said cannula device has a generally cylindrical shape.

15. The cannula device according to claim 1 wherein said housing and said at least one membrane together define at least one cavity.

16. The cannula device according to claim 1 wherein said cannula device can be attached to said base part at different levels with respect to said base part.

17. The cannula device according to claim 1 wherein said base part comprises attachment members adapted for removable attaching said cannula device to said base part in more than one direction with respect to said base part.

18. The cannula device according to claim 1 comprises guiding members adapted to engage with guiding members of said cannula device for positioning said cannula device on said base part.

19. The cannula device according to claim 18, wherein the guiding members guide both the assembling of the cannula device with a base part and coupling to the base part one of a connector and an inserter.

20. The cannula device according to claim 1 further comprising locking members.

21. The cannula device according to claim 20 wherein said locking members removable connect said cannula device to said base part.

22. The cannula device according to claim 1 wherein said locking members removable connect a connector to said base part.

23. The cannula device according to claim 1 wherein said cannula device is selectively rotatable relative to said base part.

24. The cannula device according to claim 23 further comprising hinges for attaching said cannula device to said base part.

25. A cannula device for mounting to a base part of an infusion set, said device comprising:

a housing and at least one membrane adapted to receive a piercing member of a connector; and

a cannula mounted to said housing;

wherein said housing is adapted to be repositionable relative to said base part in more than one orientation with respect to said base part.

26. The cannula device of claim 25 wherein said housing further comprises guiding members for position said device on said base part.

27. The cannula device of claim 26 wherein said housing is repositionable at different levels with respect to said base part for changing the distance said cannula is inserted into the skin of a patient.

28. The cannula device of claim 26 wherein said housing is repositionable within said housing in at least a first direction and a second direction wherein an angle between said first direction and said second direction is at least 45°

.