Angled Inserter For Drug Infusion

• US 20140276563A1
• Filed: 03/14/2013
• Published: 09/18/2014
• Est. Priority Date: 03/14/2013
• Status: Active Grant

• Current Assignee: Becton, Dickinson & Co
• Original Assignee: Becton, Dickinson & Co
• Inventors: Cole, Russell S., Klotz, Arthur L.
• Granted Patent: US 10,080,839 B2
• Time in Patent Office: Days
• US Class Current: 604/506
• 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
• CPC Class Codes: A61M 5/162 Needle sets, i.e. connections by puncture between reservoir and tube ; Connections between reservoir and tube in jet-action syringes A61M5/30; connectors for tubes having sealed ends and a needle for piercing them A61M39/14

Abstract

An infusion set adapted to be secured to a skin surface includes a fixed base member and a movable slide member. The fixed base member is connectable to the skin surface. The movable slide member has a needle or cannula connected thereto and is movable relative to the fixed base member. The movable slide member is movable from a first position in which the needle or cannula is not exposed externally of the fixed base member to a second position in which the needle or cannula is exposed externally of the fixed base member. A hub is fixedly connected to the movable member and has a slot extending rearwardly in a lower surface from a first end thereof. The needle or cannula is received in the slot. The movable slide member is locked to the fixed base member in the second position.

Claims

1. A hub for an infusion set adapted to be secured to a skin surface, comprising:

a body member having a first end and a second end;

a bore extending from said first end to said second end;

a needle or cannula disposed in said bore such that a distal end of said needle or cannula extends beyond said first end of said body member; and

a slot extending rearwardly in a lower surface of said body member from said first end of said body member and opening into said bore.

2. The hub according to claim 1, wherein

an adhesive secures said needle or cannula in said bore, said adhesive being disposed rearwardly of a rear end of said slot.

3. The hub according to claim 1, wherein

a planar surface at said first end of said body member limits an insertion depth of said needle or cannula.

4. The hub according to claim 1, wherein

a septum seals said bore at said second end of said body member.

5. The hub according to claim 1, wherein

a rounded protrusion surrounds said slot.

6. The hub according to claim 5, wherein

said rounded protrusion has approximately a 0.020 inch radius.

7. The hub according to claim 2, wherein

a portion of said needle or cannula between said first end of said body member and said adhesive has a length of approximately 0.158 inches.

8. The hub according to claim 2, wherein

said adhesive is spaced from said lower surface of said body member.

9. A hub for an infusion set adapted to be secured to a skin surface, comprising:

a body member having a first end;

a needle or cannula disposed in said body member; and

a slot extending rearwardly from said first end in a lower surface of said body member, said needle or cannula being disposed in said slot.

10. The hub according to claim 9, wherein

an adhesive secures said needle or cannula in said body member, said adhesive being disposed rearwardly of a rear end of said slot.

11. The hub according to claim 9, wherein

a planar surface at said first end of said body member limits an insertion depth of said needle or cannula.

12. The hub according to claim 9, wherein

a rounded protrusion surrounds said slot.

13. The hub according to claim 12, wherein

said rounded protrusion has approximately a 0.020 inch radius.

14. The hub according to claim 10, wherein

a portion of said needle or cannula between said first end of said body member and said adhesive has a length of approximately 0.158 inches.

15. The hub according to claim 10, wherein

said adhesive is spaced from said lower surface of said body member

16. An infusion set assembly adapted to be secured to a skin surface, comprising:

an infusion set including

a fixed base member connectable to the skin surface;

a movable slide member having a needle or cannula connected thereto and movable relative to said fixed base member, said movable slide member being movable from a first position in which said needle or cannula is not exposed externally of said fixed base member to a second position in which said needle or cannula is exposed externally of said fixed base member; and

a hub fixedly connected to said movable member and having a slot extending rearwardly in a lower surface from a first end thereof, said needle or cannula being received in said slot; and

an inserter removably connected to said infusion set for moving said movable slide member from said first position to said second position.

17. The infusion set assembly according to claim 16, wherein

an adhesive secures said needle or cannula in said hub, said adhesive being disposed rearwardly of a rear end of said slot.

18. The infusion set assembly according to claim 16, wherein

a planar surface at said first end of said body member limits an insertion depth of said needle or cannula.

19. The infusion set assembly according to claim 16, wherein

a rounded protrusion surrounds said slot.

20. The infusion set according to claim 17, wherein

said adhesive is spaced from said lower surface of said hub.

21. A method of securing an infusion set to a skin surface, comprising the steps of

placing a needle or cannula of the infusion set in the skin surface;

and

controlling a minimum bend radius of the placed needle or cannula to resist deformation and fracture thereof.

22. The method of securing an infusion set to a skin surface according to claim 21, further comprising

limiting an insertion depth of the needle or cannula in the skin surface with a surface of a hub of the infusion set.

23. The method of securing an infusion set to a skin surface according to claim 21, further comprising

bending the needle or cannula around a rounded protrusion on a hub of the infusion set to control the bend radius of the needle or cannula.