The present invention relates to medical needles used in connection with guide wires. A needle of the present invention includes a substantially cylindrical tube formed along a central longitudinal axis. A tapered tube is connected to one end of the tube and has a sharpened end. A channel extends through...http://www.google.com/patents/US7803142?utm_source=gb-gplus-sharePatent US7803142 - Microtaper needle and method of use
