HOLLOW MICRONEEDLE WITH BEVEL OPENING

摘要

An article having at least one microneedle (160, 260) is provided. The microneedle includes a base (162), an elongated body (161) having a central axis (130) and a body diameter (168), a tip portion (166), a first channel (170), and a second channel (176). The tip portion includes a tip (164), a beveled surface (140), and a bevel opening (172) in the beveled surface. The first channel extends axially from the bevel opening through at least a portion of the elongated body and has a first wall that is substantially aligned with the central axis. The second channel extends radially from the first channel to the bevel opening and has a second wall that is oriented substantially orthogonal to the central axis. The first channel and second channel merge to form the bevel opening.

主权项

1. An article, comprising:
at least one microneedle, the at least one microneedle comprising:
a base;an elongated body having a central axis;a tip portion comprising a tip, a beveled surface, and a bevel opening in the beveled surface;a first channel that extends axially from the bevel opening through at least a portion of the elongated body, wherein the first channel has a first wall that is substantially aligned with the central axis; anda second channel that extends radially from the first channel to the bevel opening, wherein the second channel has a second wall that is oriented substantially orthogonal to the central axis; wherein the first channel and second channel merge to form the bevel opening.