Nanopass Technologies Ltd.

Yoav Hamisha

Yotam Levin

Gal Admati

An injection configuration () for connection to a male Luer connector () includes a hub () having an internal conical taper () in fluid interconnection with a hollow needle (). The internal conical taper has a convergence angle of 6% and a length L of 7.5-10.5 millimeters, and presents an entrance aperture diameter D of between 4.365 and 4.595 millimeters.

Injection configuration with modified Luer connector for reduced dead space

A microneedle structure has one or more microneedles () projecting from the major surface () of a substrate (). The microneedle has a penetrating tip () formed at an intersection between upright surfaces () and an inclined surface () corresponding to a (1 1 1) crystallographic plane. The microneedle has an expanding portion bounded by a continuation of the upright surfaces () and inclined surface (), and a constant cross-section portion bounded by a continuation of the upright surfaces and a slicing plane () extending from an edge () of inclined surface () towards, and perpendicular to, major surface () of the substrate. A width W of inclined surface () increases monotonically from penetrating tip () to edge ().

Silicon microneedle structure and production method

A microneedle for intradermal injection or diagnostics, constructed as a protrusion above a substrate and whose shape is defined by a pair of vertical side surfaces, configured to be symmetrical about a vertical plane of symmetry and to meet along a vertical leading edge, and by an inclined surface, intersecting the side surfaces, the microneedle also including a vertical bore, located centrally between the two side surfaces and substantially near the leading edge, wherein each of the side surfaces is divided, sequentially along the front-to-back direction, into at least two contiguous planar segments, forming pairs of corresponding segments along the respective side surfaces; each pair of corresponding segments mutually form an acute angle, the angle being between 40 and 70 degrees for the pair of segments adjacent the leading edge and less than 35 degrees for the pair of segments farthest from the leading edgeand wherein the leading edge is formed so that its profile includes an arc, joined to the side surfaces.

Growing community of inventors

Mazkeret Batiya, Israel

Yoav Hamisha