US 7,320,683 B2
Multi-beveled point needle and syringe having a multi-beveled point needle
A. Wesley Prais, Hewitt, N.J. (US); Judith L. Doyle, Upper Saddle River, N.J. (US); Steven L. Koziol, Columbus, Nebr. (US); and Frederic Perot, Grenoble (France)
Assigned to Becton, Dickinson and Company, Franklin Lakes, N.J. (US)
Filed on Aug. 05, 2003, as Appl. No. 10/635,066.
Application 09/040067 is a division of application No. 08/670255, filed on Jun. 20, 1996, granted, now 5,752,942.
Application 10/635066 is a continuation of application No. 09/809469, filed on Mar. 15, 2001, granted, now 6,629,963.
Application 09/809469 is a continuation in part of application No. 09/454993, filed on Dec. 06, 1999, abandoned.
Application 09/454993 is a continuation of application No. 09/040067, filed on Mar. 17, 1998, granted, now 6,009,933.
Prior Publication US 2004/0030303 A1, Feb. 12, 2004
This patent is subject to a terminal disclaimer.
Int. Cl. A61M 5/32 (2006.01)
U.S. Cl. 604—274 64 Claims
OG exemplary drawing
 
1. A needle having a multi-beveled point, said needle comprising a cannula having a lumen and a central axis therethrough, said multi-beveled point provided at one end of the cannula, said multi-beveled point comprised of a primary bevel, a pair of tip bevels, and a pair of middle bevels, said bevels contiguously bounding said lumen, wherein respective of an angle defined between said central axis and a reference plane, each of said primary bevel, said pair of middle bevels, and said pair of tip bevels are provided on said cannula at a respective planar angle, wherein said planar angles of said primary bevel and said pair of middle bevels are substantially equal.