Infusion set

• US 8,012,126 B2
• Filed: 10/29/2007
• Issued: 09/06/2011
• Est. Priority Date: 10/31/2006
• Status: Active Grant

• Current Assignee: Unomedical A/S
• Original Assignee: Unomedical A/S
• Inventors: Tipsmark, Henrik, Nielsen, Jens Egebjerg
• Primary Examiner(s): Lucchesi; Nicholas D
• Assistant Examiner(s): BERDICHEVSKY, AARTI
• Application Number:
  US12/446,859
• Publication Number:
  US 20100022956A1
• Time in Patent Office: 1,408 Days
• Field of Search: 604/164.01, 604/164.07, 604/257, 604/533, 604/539
• US Class Current: 604/154
• 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 2025/028 having a mainly rigid support structure
• CPC Class Codes: A61M 25/02 Holding devices, e.g. on the body
• CPC Class Codes: A61M 39/1011 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

Abstract

The application relates to an infusion set comprising an infusion part (1) comprising a base part (3) having a main plane, a head part (6) extending from the main plane of the base part and a cannula (12) extending from the base part, first fastening means, a connector (2) having a plane being parallel to and above the main piano of the base part, and having one or more arms (15), said arms being fastened to the connector at a first end, and being free in a second opposite end, and a tube (14), guide means (7, 16) second fastening means (8, 17) being in the form of projecting connector retention devices (17) positioned on the arms of the connector adapted to engage with retention devices (8) extending from the base part, where the plane of the connector can be tilted to a distance from the base part causing the second to be displaced to a distance from that is larger than the height (h) of the retention devices.

Claims

1. An infusion set for intermittent administration of a therapeutic substance through the skin of a patient, comprising:

an infusion part comprising a base part having a main plane, a head part extending from the main plane of the base part and a cannula extending from the base part into the skin of a patient,

first fastening means for fastening the infusion part to the skin of a patient,

a connector having a plane parallel to and above the main plane of the base part, and having one or more arms, said arms being fastened to the connector at a first end, and being free in a second opposite end, and a tube positioned in the second end for connecting the infusion set to a medical device,

a guide means for positioning the infusion part and the connector in relation to each other,

second fastening means for fastening the connector to the infusion part, said second fastening means comprising projecting connector retention devices positioned on the arms of the connector adapted to engage with retention devices extending from the base part,

wherein said retention devices of the second fastening means being positioned in a second end of the base part and corresponding to the connector retention device positioned at the free end of the one or more arms of the connector, when the connector is positioned via the guide means relative to the infusion part, and wherein the connector further comprises a protruding protecting part for protection of the free second end of the one or more arms.

2. An infusion set according to claim 1, wherein the connector is pivotable at the first end when positioned in the guide means around an axis, said axis being parallel to the main plane of the base part and perpendicular to a longitudinal axis A of the infusion part.

3. An infusion set according to claim 1, wherein the cannula of the infusion part is extending perpendicular to and from a lower surface of the base part.

4. An infusion set according to claim 1, wherein the contact surface of the connector retention devices of the arms is being essentially perpendicular to the main plane of the base part, when the infusion part and the connector are assembled.

5. An infusion set according to claim 1, wherein the head part of the infusion part comprises transparent polypropylene.

6. An infusion set according to claim 1, wherein the arms of the connector comprise gripping means for easy gripping when pressing the arms for disconnection of the connector from the infusion part.

7. An infusion set according to claim 1, wherein the infusion part and the connector are made from two different plastics materials.

8. An infusion set according to claim 1, wherein the infusion part or the connector consists essentially of polypropylene.

9. An infusion set according to claim 1, wherein the medical device is an insulin pump.

10. An infusion set according to claim 1, wherein the plane of the connector can be tilted to a distance from the base part, causing the second end to be displaced to a distance that is larger than the height (h) of the retention devices.

11. An infusion set according to claim 1, wherein the retention devices of the infusion part are formed with contact surfaces for engaging with corresponding contact surfaces of the connector retention devices, the contact surfaces having a plane having a projection of the height (h) perpendicular to the main plane of the base part.

12. An infusion set according to claim 11, wherein the contact surface of the retention devices is essentially perpendicular to the base part.

13. An infusion set according to claim 1, wherein the first fastening means is a mounting pad.

14. An infusion set according to claim 13, wherein the mounting pad is an adhesive dressing.

15. An infusion set according to claim 1, wherein the guide means for positioning the infusion part and the connector relative to each other comprises a tongue and groove connection.

16. An infusion set according to claim 15, wherein the groove is positioned on the head part of the infusion part and the tongue is positioned on the connector part.

17. An infusion set according to claim 1, wherein the head part of the infusion part comprises a transparent portion.

18. An infusion set according to claim 17, wherein the transparent portion of the head part comprises a reduced-thickness.

19. An infusion set according to claim 17, wherein the transparent portion of the head part comprises a magnifying area.

20. A kit comprising an injector device and an infusion set according to claim 1, the injector device comprising:

a housing

a plunger slidably received within the housing for movement between an advanced position and a retracted position, the plunger having substantially non-detachably secured thereto an insertion needle for receiving and supporting the cannula of the subcutaneous infusion set in a position with the cannula, where the insertion needle is removable from the cannula while maintaining a transcutaneous placement of the cannula,

a drive for urging the plunger from the retracted position toward the advanced position to transcutaneously place said cannula of the infusion set received on the insertion needle.