Needle alignment, needle securement and vessel stabilization device
A securement device for an intravenous, winged needle set, which comprises: an inverted U-shaped, self-supporting strap, the strap having vertical legs attached to a central portion of a base. The base has a bottom to rest on the skin of the patient. A portion of the base forward of the strap has an upper surface that slopes downwardly to a forward end at an angle to the skin and the bottom of the base. Improved retention and ease of application is provided with such a device.
1 . A securement device for an intravascular, winged needle set, which comprises:
an inverted U-shaped, self-supporting strap, said strap having legs attached to base, said base having a bottom to rest on the skin of a patient, a portion of said base being forward of said strap and having a first, upper surface that slopes downwardly to a forward end at an angle of essentially 5-30°.
2 . The securement device of claim 1 in which the upper surface slopes downwardly at an angle of essentially 5-10°.
3 . The securement device of claim 1 in which said base is divided into a pair of spaced segments with a space extending under said U-shaped strap, said space being of a width to at least partly receive a hub of said winged, intravascular needle.
4 . The securement device of claim 1 which has a winged needle hub positioned under said strap with wings of said needle set resting on said first, upper surface.
5 . The securement device of claim 4 in which forward edge portions of the strap are in abutting relation with said wings next to the hub.
6 . The securement device of claim 1 in which a portion of said base behind said strap has a second, upper surface, to provide a tape receiving surface for securance tape that also extends over the wings of a needle set carried on said securement device.
7 . The securement device of claim 6 in which said second, upper surface has a maximum height portion that is adjacent to said strap, and is higher than the bottom of said strap legs.
8 . The securement device of claim 6 , secured to the skin of a patient with separate lengths of securance tape each extending over the tape receiving surface and a wing of said winged needle set and said securance tape being sufficiently long to secure the needle set and at least one of said wings to the skin of the patient.
9 . The securement device of claim 8 in which said lengths of tape extend in a direction generally longitudinal to the axis of said needle set, said lengths of tape having opposed end sections adhering to the skin.
10 . The securement device of claim 8 in which said lengths of tape are attached to upper surfaces of a pair of wings, a and spaced, tape receiving surface portions, and the skin.
11 . The securement device of claim 1 , in which separate lengths of securance tape each extend over a wing of a winged needle set carried on said securement device, said lengths of tape extending in a direction generally longitudinal to the axis of said needle set on either side of the inverted, U-shaped strap, said lengths of tape having opposed end sections adhering to the skin.
12 . A securement device for intravascular, winged needle set, which comprises:
an inverted U-shaped, self-supporting strap, said strap having legs attached to a a base, said base having a bottom to rest on the skin of a patient, a portion of said base forward of said strap having a first, upper surface that slopes downwardly to a forward end at an angle of essentially 5-30°, said base being divided into a pair of spaced segments with the space between said segments extending under said U-shaped strap, said space being of a width to receive a hub of said winged, intravascular needle set.
13 . The securement device of claim 12 in which a portion of said base behind said strap has a second, upper surface that slopes downwardly to a rearward end, to provide a tape receiving surface for securance tape that also extends over the wings of a needle set carried on said securement device.
14 . The securement device of claim 13 in which said second upper surface has a maximum height portion that is adjacent to said strap, and is higher than the bottom of said strap legs.
15 . The securement device of claim 12 which has a winged needle hub positioned under said strap with wings of said needle set resting on said first, upper surface and the needle set having a cannula penetrating the skin of patient.
16 . The securement device of claim 12 , secured to the skin of a patient with separate lengths of securance tape each extending over and adhering to the second, upper surface and a wing of said winged needle set, while extending in a direction generally longitudinal to the axis of said needle set, said lengths of tape each having opposed end sections adhering to the skin.
17 . The securement device of claim 13 in which the second, upper surface slopes at a different angle from the first upper surface to permit reversal of functions of the first and second upper surfaces.
18 . The securement device of claim 6 in which the second, upper surface slopes at a different angle from the first upper surface, to permit reversal of functions of the first and second upper surfaces.
19 . The securement device of claim 18 in which the second, upper surffice slopes at an angle of essentially 10° to 15°, and the first, upper surface slopes at a lesser angle.
20 . The securement device of claim 12 in which said base defines a transverse line of bending weakness to permit manual bending of the base to form two angled sections from said flat bottom, to adjust the angle of said first, upper surface to the skin of a patient on which said device rests.
21 . A stabilization device for cannulation of a vein, fistula, graft or the like, which comprises:
an inverted U-shaped, self-supporting strap, said strap having legs attached to a base, said base having a bottom and a first, upper surface, and being divided into a pair of spaced segments with a space extending under said U-shaped strap, said space being of a width capable of straddling at least a portion of a subcutaneous artery, vein, fistula, graft or like vessel when the spaced portions are pressed down on the skin adjacent to such vessel.
22 . The securement device of claim 21 in which said base defines a transverse line of bending weakness to permit manual bending of the base to form two angled sections from said bottom, to adjust the angle of said first, upper surface to the skin of a patient on which said device rests.
23 . A securement device for an intravascular, winged needle set, which comprises:
an inverted U-shaped, self-supporting strap, said strap having substantially vertical legs attached to a center portion of a base, said base having a bottom to rest on the skin of a patient, said base further defining a transverse line of bending weakness to permit manual bending of the base to form two angled sections from said bottom to adjust the angle of an upper surface of said base to the skin of a patient on which said device rests.
24 . The securement device of claim 23 in which said base is also divided into a pair of spaced segments with the space extending under said U-shaped strap, said space being of a width to at least partly receive a hub of said winged, intravascular needle set.
25 . The securement device of claim 23 in which said transverse line of bending weakness is manually bent while said device rests on the skin of a patient, so that a central portion of said base does not rest on the skin of the patient, while end portions of said base do rest on the skin of a patient, said device being taped to the skin of the patient.
26 . A device for securing by strips of adhesive tape a winged needle set, that penetrates the skin of a patient against motion of the cannula of said set, within the skin, which comprises:
a base for placement on the skin of the patient, and for immovably holding the winged needle, while said cannula penetrates the skin and at least a portion of the wings of the needle are separated from the skin by the device.
27 . The device of claim 26 , placed on the skin of a patient and carrying said winged needle set with the needle penetrating the skin, said base having upper surfaces that support the needle wings.
28 . The device of claim 27 in which said device and said winged needle set are secured to the skin by strips of adhesive tape overlaying the device and/or wings.
29 . The method of stabilizing a blood vessel to facilitate its penetration by a cannula through the skin, which comprises:
applying to the skin a stabilization device which comprises a base with the blood vessel positioned under the center of the base to limit lateral movement of said blood vessel as a needle is advanced to penetrate the blood vessel through the skin.
30 . The method of claim 29 wherein the base comprises a pair of spaced base segments, with the blood vessel positioned between said base segments.
31 . The method of claim 30 in which said stabilization device is thereafter positioned to support and stabilize the winged needle set as it resides on the skin in skin-penetrating relation, further including the step of taping a winged needle set and the stabilization device to the skin.
32 . The method of claim 29 in which said stabilization device is thereafter positioned to support and stabilize the winged needle set as it resides on the skin in skin-penetrating relation, further including the step of taping a winged needle set and the stabilization device to the skin.
33 . The method of claim 31 in which wings of the winged needle set rest, after said taping, on said base segments, at least a portion of said wings being spaced from the skin.
34 . The method of stabilizing a cannula residing in a blood vessel and extending through the skin of a patient, said cannula having a hub, which comprises:
placing a securement device comprising a base onto the skin of the patient adjacent to said cannula hub; and taping the skin, the base, and the cannula hub together into a substantially rigid composite.
35 . The method of claim 33 in which said hub has wings that at least mostly rest on said base, spaced from the skin.
36 . The securement device of claim 1 in which the legs of said strap are substantially vertical and attached to a center portion of said base.
37 . The securement device of claim 12 in which the legs of said strap are substantially vertical and attached to a center portion of said base.
38 . The securement device of claim 6 in which the second, upward surface slopes downwardly to a rearward end.