MULTI-POSITION INFUSION SET DEVICE AND PROCESS

• US 20090163878A1
• Filed: 01/27/2009
• Published: 06/25/2009
• Est. Priority Date: 11/10/2003
• Status: Active Grant

• Current Assignee: Medtronic Minimed Incorporated (Medtronic Plc)
• Original Assignee: Medtronic Minimed Incorporated (Medtronic Plc)
• Inventors: Shetler, Lance E., Grigis, Milad T., Taylor, Clint, Moberg, Sheldon B., Kavazov, Julian D., Collins, Sean M., Highley, Brian, Adams, Jason, Hudak, Philip J., Cushing, Tommy, Holt, Mark D., Candioty, Albert D., Houghton, Frederick C., Kooiman, Kraig P.
• Granted Patent: US 8,317,759 B2
• Time in Patent Office: Days
• US Class Current: 604/263
• 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 2025/0266 using pads, patches, tapes or the like
• CPC Class Codes: A61M 2025/028 having a mainly rigid support structure
• CPC Class Codes: A61M 25/02 Holding devices, e.g. on the body
• 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 39/1055 Rotating or swivel joints in general F16L27/00
• 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

An infusion set for subcutaneous delivery of an infusant. The infusion set may include a base removably attachable to an infusion site and a connector temporarily lockable to the base. The connector can engage the base in a plurality of orientations. The connector locks into the base after at least partial rotation of the connector about the base. The connector may include flexible arms which unlock the connector from the base. The base includes a cannula for insertion through the infusion site. The connector includes a tubing for passing the infusant. The infusant is subcutaneously passable from the tubing through the cannula when the connector is attached to the base. The infusion set may also include a hub removably attachable to the base that includes a needle that extends through the base and the cannula and a guard removably attachable to the base opposite the hub for surrounding the needle.

Claims

1. An infusion set comprising:

a base removably attachable to an infusion site for providing a subcutaneous path for an infusant, the base having a cannula;

a hub removably attachable to the base, the hub including a needle for extending through the base and through the cannula; and

a guard supportable opposite the hub for surrounding the needle;

wherein, upon removal of the guard, the needle is subcutaneously insertable into the infusion site for subcutaneously positioning the cannula.

2. An infusion set as recited in claim 1, the base having at least one aperture and the hub having at least one tab for engaging the at least one aperture of the base for releasably connecting the hub to the base.

3. An infusion set as recited in claim 1, the subcutaneous path extending in a generally linear direction, the subcutaneous path aligned with the cannula, the needle for insertion through the base, the subcutaneous path, and the cannula.

4. An infusion set as recited in claim 1, the hub removably attachable to the guard.

5. An infusion set as recited in claim 4, the hub having at least one aperture and the guard having at least one tab for engaging the at least one aperture of the hub for releasably connecting the guard to the hub.

6. A process of making an infusion set comprising:

providing a base that is removably attachable to an infusion site for providing a subcutaneous path for an infusant, the base having a cannula;

configuring a hub to be removably attachable to the base, the hub including a needle for extending through the base and through the cannula; and

configuring a guard to be supportable opposite the hub and to surround the needle;

wherein, upon removal of the guard, the needle is subcutaneously insertable into the infusion site for subcutaneously positioning the cannula.

7. An infusion set comprising:

a base removably attachable to an infusion site for providing a subcutaneous path for an infusant, the base having a cannula;

a hub removably attachable to the base, the hub including a needle for extending through the base and through the cannula; and

a guard removably attachable to the base opposite the hub for surrounding the needle;

wherein, upon removal of the guard, the needle is subcutaneously insertable into the infusion site for subcutaneously positioning the cannula.

8. An infusion set as recited in claim 7, the base having at least one aperture and the guard having at least one tab for engaging the at least one aperture of the base for releasably connecting the guard to the base.

9. An infusion set as recited in claim 8, the base having at least one retaining surface for retaining the at least one tab in the at least one aperture to inhibit separation of the base and the guard.

10. An infusion set as recited in claim 8,

the base having at least one locking surface;

wherein the guard is at least partially rotatable about an axis of the base; and

wherein rotation of the guard about the base causes the at least one tab to engage with the at least one locking surface to inhibit separation of the guard from the base in an axial direction parallel to the axis of the base.

11. An infusion set as recited in claim 7, further comprising:

a locking mechanism for temporarily locking the hub to the base;

the base engagable by the hub in a plurality of orientations.

12. An infusion set as recited in claim 7, the base having at least one aperture and the hub having at least one tab for engaging the at least one aperture of the base for releasably connecting the hub to the base.

13. An infusion set as recited in claim 12, the hub having one or more arms, each of the one or more arms fixedly attached to a tab of the at least one tab.

14. An infusion set as recited in claim 12, the hub having at least one wing for providing leverage during insertion or removal of the at least one tab from the at least one aperture.

15. An infusion set as recited in claim 7, further comprising:

a locking mechanism for temporarily locking the guard to the base;

the base engagable by the guard in a plurality of orientations.

16. An infusion set as recited in claim 7, the subcutaneous path extending in a generally linear direction, the subcutaneous path aligned with the cannula, the needle for insertion through the base, the subcutaneous path, and the cannula.

17. An infusion set as recited in claim 7,

wherein the hub is flexible;

and

wherein the hub is adapted to be flexed to remove the hub from the base.

18. An infusion set as recited in claim 7,

wherein the guard is flexible;

and

wherein the guard is adapted to be flexed to remove the guard from the base.

19. An infusion set as recited in claim 7, the hub having a handle portion extending away from the hub in a direction transverse to the needle, the handle portion for allowing a user to hold the handle portion when connecting the hub to the base.

20. An infusion set as recited in claim 7, the base removably lockable to a connector for providing a fluid flow path for the infusant to the subcutaneous path.