Patent ID: 6346095
Filing Date: 2002-02-12
Classification: A61M

Abstract:
A method for the delivery of a liquid into or through the skin of a subject, comprising:(A) providing a needle comprising a tubular sidewall and a sharpened end for penetrating the skin of the subject, said tubular sidewall having a longitudinal axis, a bore extending along said longitudinal axis, an exterior surface and at least one aperture in the form of a cut in said sidewall extending transversely to said longitudinal axis and in communication with said bore, said aperture having an inlet at said bore and an outlet at said exterior surface, said outlet being substantially larger than said inlet and shaped to be resistant to clogging; (B) causing said needle to penetrate at least into the skin of the subject; and (C) introducing the liquid into said bore and out through said at least one aperture, whereupon the liquid passes through said at least one aperture and out of said outlet for absorption into an area in the skin or beneath the skin contiguous said at least one aperture to facilitate the transfer of the liquid to the area.