Source: https://patents.google.com/patent/US8211070B2/en
Timestamp: 2019-04-26 03:03:13+00:00

Document:
This is a continuation-in-part of application Ser. No. 10/445,166, filed May 23, 2003 now U.S. Pat. No. 7,264,613, which is a continuation of application Ser. No. 09/638,641, filed Aug. 14, 2000, now U.S. Pat. No. 6,616,630, which is a continuation-in-part of application Ser. No. 09/183,697, filed Oct. 30, 1998, now U.S. Pat. No. 6,287,278, which is a continuation-in-part of application Ser. No. 09/097,170, filed Jun. 12, 1998, now U.S. Pat. No. 6,117,108, which is a continuation-in-part of application Ser. No. 08/915,148, filed Aug. 20, 1997, now abandoned, the contents of which are expressly incorporated herein by reference.
FIG. 23 is a semi-schematic perspective view of an alternative needle guard comprising side flaps and extending arm sections.
When the needle is retracted axially to the right, as viewed in FIG. 14, and moves past the end lips 132 of the needle guard 120, the radial force previously exerted on the needle guard arms 122, 124 is suddenly released. The annular protrusion 136 a prohibits movement of the needle guard 120 to the right as the needle 16 moves to the right, until the tip 18 past the end lips 132 of the needle guard 120. Movement of the tip 18 past the end lips 132 allows the resilient arms 122, 124 and their protrusions 128 therein to move inwardly a sufficient distance to cease abutting the annular protrusion 136 a. As was the case with the embodiment described with regard to FIGS. 10A and 10B, the distal end walls pivot inward into the catheter hub until the end walls overlap one another at a location distally in front of the needle tip, thereby to form a barrier that prevents inadvertent contact with, and distal movement of, the sharpened needle tip 18. At the same time, the clamping edges 146 of the needle guard (as described with respect to FIG. 1) are optionally urged against the needle 16 to restrict further axial movement of the needle, in relation to the needle guard 120.
Referring now to FIG. 23, a semi-schematic perspective view of an alternative protector clip or spring clip needle guard 182 provided in accordance with aspects of the present invention is shown. The protector clip 182 is similar to the needle guards described above with a few changes and may be used with the needle assemblies described above. In one exemplary embodiment, the first arm 184 and the second arm 186 each incorporates an arm extension member 188 adjacent an edge 190 of the respective arms. Preferably, the arm extension members 188 of the two arms project inwardly from a first arm surface 192 of the respective arms 184, 186 in the direction of the needle, assuming that one passes through the central opening 134 of the rear wall 126. Alternatively, the arm extension members 188 may project outwardly from the second arm surface 194 away from the needle. Because the two arms 184, 188 cross one another, as shown, there may be sections of the arm extension members 188 that project in the direction of the needle while other portions project away from the needle.
In one exemplary embodiment, the arm extension members 188 comprise a flap or a wing stamped from a metal sheet, such as a stainless steel sheet, as part of forming the protective clip 182 and bent either inwardly towards the needle or outwardly away from the needle. The arm extension members 188 have a length that can vary. In one exemplary embodiment, the length of the arm extension members extend a substantial length of the first and second arms 184, 186. More particularly, the arm extension members extend from approximately just distal of the hinged section 125 to approximately just distal of the proximal wide portion 144. However, the length can also extend longer or short than as described. For example, in one exemplary embodiment, the arm extension members 188 can have a length approximately the length of the narrow portions 142 of the first arm 184 and the second arm 186. Although not required, the ends 196 of the arm extension members 188 may be tapered to eliminated sharp edges. In an alternative embodiment, the arm extension members 188 may be eliminated entirely or formed on only one of the first or the second arm.
In one exemplary embodiment, two side flaps 198 project inwardly in the direction of the needle are formed on the finger or lip 132 of the second arm 186. Similar to the arm extension members 188, the side flaps 198 are formed when forming or stamping a sheet of metal for the protector clip 182 and bent inwardly in the direction of the needle. The side flaps 198 each comprises a top section 200 and two sides 202, 204. Although the sides 204 furthest proximal of the distal wall terminate evenly with the edge 206 of the lip 132, the side flaps 198 may be shifted distally and the edges 204, 206 offset. The side flaps 198 should be of sufficient size to delimit the needle from moving away or outside the space defined by the two side flaps upon activation of the protective clip 182 over the needle tip.
In an alternative embodiment, the finger or lip 132 of the first arm 184 may incorporate the side flaps 198 instead of the finger or lip 132 of the second arm 186. Still alternatively, both fingers or lips 132 of the first arm 184 and the second arm 186 may incorporate side flaps for a total of four side flaps.
wherein the first resilient arm intersects the second resilient arm at their respective second arm sections and the first and second resilient arms have arm portions that overlap.
2. The needle protector clip of claim 1 made from a metal.
3. The needle protector clip of claim 2, wherein the metal is stainless steel.
4. The needle protector clip of claim 1, wherein the proximal wall has a width having a dimension greater than the second dimension of the second arm section of the first resilient arm.
5. The needle protector clip of claim 1, wherein the proximal wall has a width having a dimension greater than the second dimension of the second arm section of the second resilient arm.
6. The needle protector clip of claim 1, wherein the second dimension of the second arm section of the first resilient arm and the second dimension of the second arm section of the second resilient arm are substantially the same.
7. The needle protector clip of claim 1, wherein the first resilient arm further comprises a curved lip.
8. The needle protector clip of claim 7, wherein the second resilient arm further comprises a curved lip.
9. The needle protector clip of claim 8, wherein the first resilient arm and the second resilient arm each comprises a distal wall and wherein the curved lip extends from the distal wall.
10. The needle protector clip of claim 1 made from a unitary construction.
11. The needle protector clip of claim 9 made from a unitary construction.
12. The needle protector clip of claim 1, wherein the clip is positioned in an interior cavity of a catheter hub and wherein the needle is attached to a needle hub.
13. The needle protector clip of claim 12, wherein a portion of the needle protector clip contacts an interior surface of the interior cavity of the catheter hub.
14. The needle protector clip of claim 13, wherein the needle hub contacts the catheter hub.
15. The needle protector clip of claim 12, wherein the needle comprises a crimp or a bump.
16. The needle protector clip of claim 12, wherein the needle urges the first resilient arm and second resilient arm radially outwardly.
wherein the first arm intersects the second arm and their respective distal walls overlap.
18. The needle guard of claim 17, wherein the distal walls of the first and second arms have portions that are generally parallel to the plane defined by the proximal end wall.
19. The needle guard of claim 17, wherein the needle guard is positioned in an interior cavity of a catheter hub and wherein a needle attached to a needle hub passes through the opening at the proximal end wall of the needle guard.
20. The needle guard of claim 19, wherein the catheter hub contacts the needle hub.
21. The needle guard of claim 17, further comprising two side flaps positioned proximate the distal wall of the first arm or the second arm.
22. The needle guard of claim 21, wherein the side flaps are located proximate the distal wall of the first arm.
23. The needle guard of claim 21, wherein the side flaps are located proximate the distal wall of the second arm.
24. The needle guard of claim 17, further comprising an arm extension member formed adjacent an edge of either the first arm or the second arm.
25. The needle guard of claim 21, further comprising an arm extension member formed adjacent an edge of either the first arm or the second aim.
26. The needle protector clip of claim 7, further comprising a finger extending from the curved lip of the first resilient arm.
27. The needle protector clip of claim 8, further comprising a finger extending from the curved lip of the second resilient arm.
28. The needle protector clip of claim 26, further comprising two side flaps located on the finger of the first resilient arm.
29. The needle protector clip of claim 27, further comprising two side flaps located on the finger of the second resilient arm.
30. The needle protector clip of claim 27, further comprising two side flaps located on the finger of the first arm and the finger of the second arm.
31. The needle protector clip of claim 27, further comprising an arm extension member formed on the first arm and the second arm.
32. The needle protector clip of claim 1, wherein the needle guard is positioned inside an interior cavity of a catheter hub and wherein a needle attached to a needle hub passes through the opening at the proximal end wall of the needle guard.
33. The needle protector clip of claim 29, wherein the needle guard is positioned inside an interior cavity of a catheter hub and wherein a needle attached to a needle hub passes through the opening at the proximal end wall of the needle guard.
34. The needle protector clip of claim 28, wherein the needle guard is positioned in an interior cavity of a catheter hub and wherein a needle attached to a needle hub passes through the opening at the proximal end wall of the needle guard.
35. The needle protector clip of claim 28, wherein the side flaps each comprises two side edges and a top edge.
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ES2333277T3 (en) 2010-02-18 A spring clip as protection of the needle tip of an intravenous catheter (iv) safety.

References: Application No. 783650
 Application No. 2006200679
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 Application No. 98
 Application No. 98
 Application No. 01
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