Endcap for a Sampling Device
A tip portion or endcap for a lancing device having a non-circular opening to provide tension and pressure upon the patient's skin before and/or during lancing of the skin for sample collection. In example embodiments, the endcap is shaped to prevent the lancet body from sticking within the hole or passing through the hole. The endcap may also be shaped to allow it to be used at various lancing sites on the body without changing the endcap.
1 . A lancing device for collecting a sample of body fluid from a sampling site on the skin of a subject, said lancing device comprising an outer body housing and a lancet, the lancet being movable between a first position within the outer body housing and a second position wherein at least a sharp tip portion of the lancet extends through an opening in the outer body housing, and wherein the opening in the outer body housing has a non-circular periphery comprising a plurality of inwardly and outwardly directed lobes.
2 . The lancing device of claim 1 , wherein the periphery of the opening is non-planar.
3 . The lancing device of claim 1 , further comprising a raised rim around the opening.
4 . The lancing device of claim 1 , wherein the opening is generally cross-shaped, comprising four lobes.
5 . The lancing device of claim 1 , wherein the opening is generally star-shaped, comprising five lobes.
6 . The lancing device of claim 1 , wherein the lobes are smoothly-rounded.
7 . The lancing device of claim 1 , wherein the lobes comprise teeth with sharp points.
8 . The lancing device of claim 7 , comprising at least one outwardly-projecting, non-planar lobe having a sharply-pointed distal tip.
9 . The lancing device of claim 1 , wherein at least a portion of the outer body housing near the opening comprises a transparent material.
10 . The lancing device of claim 1 , wherein the opening has an inside dimension that is smaller than a corresponding outside dimension of the lancet, thereby preventing the lancet from becoming stuck in the opening.
11 . An endcap for a lancing device, said endcap comprising a first end for connection to the lancing device, and a second end defining an opening through which a sharp tip of a lancet can pass, the opening having a non-circular periphery comprising a plurality of inwardly and outwardly directed lobes.
12 . The endcap of claim 11 , wherein the periphery of the opening is non-planar.
13 . The endcap of claim 11 , further comprising a raised rim around the opening.
14 . The endcap of claim 11 , wherein the opening is generally cross-shaped, comprising four lobes.
15 . The endcap of claim 11 , wherein the opening is generally star-shaped, comprising five lobes.
16 . The endcap of claim 11 , wherein the lobes are smoothly-rounded.
17 . The endcap of claim 11 , wherein the lobes comprise teeth with sharp points.
18 . The endcap of claim 17 , comprising at least one outwardly-projecting, non-planar lobe having a sharply-pointed distal tip.
19 . The endcap of claim 11 , further comprising a transparent portion near the opening.
20 . A method for acquiring an increased volume of analytic fluid from a sampling site, the method comprising the steps of:
providing a lancing device with an endcap defining a non-circular opening;
placing the lancing device against the skin so that the skin is in communication with the non-circular opening;
applying sufficient pressure on the lancing device to cause tension upon the skin within the non-circular opening;
triggering the lancing device; and
continuing to apply pressure upon the skin with the lancing device while fluid is extracted from the sampling site.
21 . (canceled)
22 . A method of reducing the sensation of pain by a subject during a lancing procedure, said method comprising contacting a skin surface at or adjacent a sampling site with an irregular lobed contact surface, wherein the step of contacting a skin surface at or adjacent a sampling site with an irregular lobed contact surface comprises contacting the skin surface with at least one outwardly-projecting, non-planar lobe having a sharply-pointed distal tip.