Huber needle with folding safety wings

• US 6,537,255 B1
• Filed: 10/09/2000
• Issued: 03/25/2003
• Est. Priority Date: 10/09/2000
• Status: Expired due to Term

• Current Assignee: B Braun Medical Incorporated (B. Braun Holding GmbH & Co. KG)
• Original Assignee: B Braun Medical Incorporated (B. Braun Holding GmbH & Co. KG)
• Inventors: Raines, Kenneth C.
• Primary Examiner(s): Casler, Brian L.
• Assistant Examiner(s): Sirmons, Kevin C.
• Application Number:
  US09/685,825
• Time in Patent Office: 897 Days
• Field of Search: 604/162, 604/192, 604/177, 604/197, 604/198, 604/165.03, 604/164.04, 604/263, 604/164.07, 604/164.08
• US Class Current: 604/177
• CPC Class Codes: A61M 2005/1581 Right-angle needle-type devices
• 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 5/3216 Caps placed transversally onto the needle, e.g. pivotally attached to the needle base

Abstract

A safety needle assembly has a needle with a pointed tip and at least one generally planar wing attached via a pivot pin to the needle. The wings are moveable between an unguarded position wherein the tip of the needle is exposed to facilitate insertion of the needle and a guarded position wherein access to the tip of the needle is inhibited so as to reduce the likelihood of inadvertent needle stick.

Claims

1. A safety needle assembly comprising:

a needle having a pointed tip; and

at least one generally planar wing attached via a pivot pin to the needle, the wing(s) being movable between an unguarded position wherein the tip of the needle is exposed to facilitate insertion of the needle and a guarded position wherein access to the tip of the needle is inhibited so as to mitigate a likelihood of an inadvertent needle stick, and wherein the pivot pin is mounted in a spaced apart configuration from the needle.

2. The safety needle assembly as recited in claim 1, wherein the needle comprises a Huber needle.

3. The safety needle assembly as recited in claim 1, wherein the needle comprises a 90°

needle.

4. The safety needle assemble as recited in claim 1, wherein the wing(s) comprises first and second wings.

5. The safety needle assemble as recited in claim 1, wherein the wing(s) comprises first and second wings, the first and second wings being generally coplanar and extending outwardly in generally opposite directions when in an unguarded position thereof and the first and second wings being generally parallel to one another with the tip of the needle disposed therebetween when the first and second wings are in the guarded position thereof.

6. The safety needle assemble as recited in claim 1, wherein the wing(s) comprises first, second and third wings, the first and second wings extending outwardly in generally opposite directions when in an unguarded position thereof, the first and second wings being generally parallel to one another with the needle disposed therebetween when the first and second wings are in the guarded position thereof and the third wing extending away from the needle so as to provide a grip during removal of the needle.

7. The safety needle assembly as recited in claim 1, wherein the wing(s) are moveable to an unguarded position which facilitates taping.

8. The safety needle assembly as recited in claim 1, further comprising a hub formed to the needle, the wing(s) being attached to the needle via the hub.

9. The safety needle assemble as recited in claim 1, wherein the wing(s) are configured such that the wing(s) are movable from the unguarded position to the guarded position thereof using one hand.

10. The safety needle assembly as recited in claim 1, wherein the wing(s) are attached to the needle such that the wings tend to fall due to gravity from an unguarded position thereof to the guarded position thereof when the needle is removed from an injection site.

11. The safety needle assembly as recited in claim 1, wherein the wing(s) are attached to the needle such that the wings fall due to gravity from an unguarded position thereof toward the guarded position thereof, but do not fall due to gravity completely to the guarded position thereof.

12. The safety needle assembly as recited in claim 1, further comprising a hub formed to the needle, the wing(s) being attached to the needle via a pivot pin attached to the hub.

13. The safety needle assemble as recited in claim 1, wherein the wing(s) are configured to lock in the guarded position thereof.

14. The safety needle assemble as recited in claim 1, wherein the wing(s) are configured to permanently lock in the guarded position thereof.

15. The safety needle assembly as recited in claim 1, further comprising:

a hub formed to the needle, the wing(s) being attached to the needle via the hub;

at least one first detent formed upon the hub;

a complimentary second detent formed upon at least one of the wings; and

wherein movement of at least one of the wings effects engagement of a first detent and a second detent so as to lock that wing in the guarded position.

16. The safety needle assembly as recited in claim 1, further comprising:

a hub formed to the needle, the wing(s) being attached to the needle via the hub;

at least one female detent formed upon the hub;

a complimentary male detent formed upon at least one of the wings; and

wherein movement of at least one of the wings effects engagement of a female detent and a male detent so as to lock that wing in the guarded position.

17. The safety needle assembly as recited in claim 1, wherein distal ends of two wings contact one another to inhibit access to the tip of the needle when the two wings are in the guarded position thereof.

18. The safety needle assembly as recited in claim 1, wherein the wing(s) are movable between an unguarded position wherein the tip of the needle is exposed to facilitate insertion of the needle and a guarded position wherein access to the tip of the needle is inhibited so as to mitigate a likelihood of an inadvertent needle stick, the wing(s) being attached to the needle in a manner which allows the wing(s) to fall from an unguarded position thereof to approximately the guarded position thereof under the force of their own weight as the needle is removed from an insertion site.

19. The safety needle assembly as recited in claim 1, further comprising a pin which extends through a portion of the hub and a portion of each wing for moveably attaching each wing to the hub.

20. The safety needle assembly as recited in claim 1, further comprising a stainless steel pin which extends through a portion of the hub and a portion of each wing for moveably attaching each wing to the hub.

21. A safety needle assembly comprising:

a needle having a pointed tip and a base;

a hub formed to the needle proximate the base thereof;

first and second wings pivotally attached to the hub, the first and second wings being movable between an unguarded position wherein the tip of the needle is exposed so as to facilitate insertion of the needle and a guarded position wherein access to the tip of the needle is inhibited so as to mitigate a likelihood of an inadvertent needle stick, the first and second wings extending outwardly in generally opposite directions when in the unguarded position and the first and second wings being generally parallel to one another with the pointed tip of the needle disposed therebetween when in the guarded position thereof;

a first detent member formed on each wing; and

a complimentary second detent member formed on the hub for each first detent member, the first and second detent members configured to cooperate to permanently lock the first and second wings in the guarded position thereof.

22. The safety needle assembly as recited in claim 21, further comprising a third wing extending from the hub, the third wing being configured to facilitate grasping thereof when the needle is removed from an injection site.

23. The safety needle assembly as recited in claim 21, wherein the needle is a 90°

Huber needle.

24. A method for performing an injection, the method comprising:

inserting a needle having a horizontal arm into an injection site;

injecting fluid through the needle;

removing the needle from the injection site; and

moving at least one generally planar wing from an unguarded position thereof wherein the tip of the needle is exposed to facilitate insertion of the needle to a guarded position thereof wherein access to the tip of the needle is limited so as to mitigate a likelihood of an inadvertent needle stick, wherein such generally planar wing is pivotally mounted in a spaced apart relationship from the horizontal arm of the needle.

25. The method as recited in claim 24, wherein moving the wing(s) from an unguarded position thereof to the guarded position thereof comprises moving the wing(s) from an unguarded position thereof to the guarded position thereof with one hand.

26. The method as recited in claim 24, wherein moving the wing(s) from an unguarded position thereof to a guarded position thereof at least partially occurs due to the wing(s) falling as the needle is removed from the injection site.

27. The method as recited in claim 24, further comprising taping the wing(s) proximate the injection site after inserting the needle.

28. The method as recited in claim 24, further comprising locking the wings in the guarded position thereof.

29. The method as recited in claim 24, further comprising taping first and second wings proximate the injection site.

30. The method as recited in claim 24, wherein removing the needle from the injection site comprises gripping a third wing and pulling the needle from the injection site.

31. The method as recited in claim 24, wherein moving at least one wing from an unguarded position to a guarded position thereof comprises moving first and second wings from an unguarded to a guarded position thereof.

32. The method as recited in claim 24, wherein moving at least one wing from an unguarded position to a guarded position thereof comprises moving first and second wings from an unguarded position to a guarded position thereof so as to permanently lock the first and second wings in the guarded position thereof.