INFUSION SET

• US 20130281931A1
• Filed: 06/24/2013
• Published: 10/24/2013
• Est. Priority Date: 04/06/2001
• Status: Active Grant

• Current Assignee: Roche Diabetes Care Inc. (Roche Holding AG)
• Original Assignee: Roche Diagnostics International AG (Roche Holding AG)
• Inventors: Hunn, Marcel, Liniger, Juerg, Oesch, Marc, Zihlmann, Rudolf, Scheurer, Simon, Denoth, Patrik, Buetikofer, Markus
• Granted Patent: US 8,801,660 B2
• Time in Patent Office: Days
• US Class Current: 604/180
• 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 25/0097 characterised by the hub connectors A61M39/10
• CPC Class Codes: A61M 25/02 Holding devices, e.g. on the body
• CPC Class Codes: A61M 25/0612 Devices for protecting the needle; Devices to help insertion of the needle, e.g. wings or holders
• CPC Class Codes: A61M 39/02 Access sites
• CPC Class Codes: A61M 39/1011 Locking means for securing connection; Additional tamper safeties A61M39/16 takes precedence
• CPC Class Codes: A61M 5/158 Needles for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body
• CPC Class Codes: A61M 5/3243 being axially-extensible, e.g. protective sleeves coaxially slidable on the syringe barrel devices for protecting guide needles in combination with catheters A61M25/0612

Abstract

A device for inserting a cannula into tissue, including a cannula, a protective element which can accommodate said cannula, an operating element for moving the cannula out of the protective element, and a holder fixedly connected to the cannula. The invention encompasses a system for connecting a liquid supply to the cannula.

Claims

1. A fluid delivery system, comprising:

a liquid supply;

a base body, the base body comprising a foundation body and a plaster, the foundation body attached to a first surface of the plaster, the plaster having a second, opposite surface comprising an adhesive for attachment of the base body to a tissue; and

a separate cannula holder comprising a cannula for delivering a fluid from the liquid supply, wherein the cannula holder and the foundation body are configured to form a connection as the cannula is inserted through the base body and into the tissue.

2. The system of claim 1, wherein the liquid supply is connected to the foundation body with a latch connection.

3. The system of claim 1, wherein the liquid supply is connected to the foundation body by a rotational connection.

4. The system of claim 1, wherein liquid supply is detachably connected to the foundation body.

5. The system of claim 1, wherein the separate cannula holder further comprises a sealing element.

6. The system of claim 5, wherein the sealing element comprises a septum.

7. The system of claim 1, wherein the cannula holder connects to the foundation body by a latch connection.

8. The system of claim 7, wherein the latch connection comprises one or more of a groove, a recess, a projection or a latching edge on the cannula holder that connects to a corresponding structure on the foundation body.

9. The system of claim 7, wherein the latch connection comprises a groove on the cannula holder and a corresponding protrusion on the foundation body.

10. The system of claim 1, wherein the cannula comprises a hard cannula.

11. The system of claim 10, wherein the hard cannula becomes flexible once inserted into the tissue.

12. The system of claim 1 further comprising an inserting device.

13. The system of claim 12, wherein the foundation body comprises at least one connecting element for connecting to said foundation body.

14. The system of claim 13, wherein both the liquid supply and the inserting device connect to the same at least one connecting element.

15. The system of claim 13, wherein the connecting element is a detachable connecting element.

16. The system of claim 1, wherein the separate cannula holder further comprises a sealing element and the liquid supply comprises a supplying element that pierces the sealing element and channels a liquid from the liquid supply into a hollow space of the cannula.

17. The system of claim 1, wherein the liquid supply is connected to the foundation body with a latch connection.

18. The system of claim 1, wherein the liquid supply is connected to the foundation body by a rotational connection.

19. The system of claim 1, wherein liquid supply is detachably connected to the foundation body.

20. The system of claim 1, wherein the foundation body has at least one opening connected to a hollow space of the cannula and the liquid supply comprises a supplying element that is inserted into the opening of the foundation body such that a liquid can be channeled via the supplying element into the hollow space of the cannula and into the tissue.

21. The system of claim 20, further comprising a sealing element arranged over the at least one opening that is pierced by the supplying element when the liquid supply is connected to the foundation body.

22. The system of claim 21, wherein the sealing element comprises a septum.

23. A fluid delivery system, comprising:

a liquid supply;

a base body, the base body comprising a foundation body and a plaster, the foundation body attached to a first surface of the plaster, the plaster having a second, opposite surface comprising an adhesive for attachment of the base body to a tissue;

a separate cannula holder comprising a sealing element and a cannula for delivering a fluid from the liquid supply, wherein the cannula holder and the foundation body are configured to form a connection as the cannula is inserted through the base body and into the tissue; and

an inserting device;

wherein the liquid supply comprises a supplying element that pierces the sealing element and channels a liquid from the liquid supply into a hollow space of the cannula.