US 12,290,362 B2
Five-bevel cannula for blood acquisition devices
Matthew Siang Si Woo, Singapore (SG); Ravi Attri, Budd Lake, NJ (US); Arun U. Nair, Denville, NJ (US); and Bo Yon Lillian Yoo, Ridgefield, NJ (US)
Assigned to Becton, Dickinson and Company, Franklin Lakes, NJ (US)
Filed by Becton, Dickinson and Company, Franklin Lakes, NJ (US)
Filed on Aug. 2, 2021, as Appl. No. 17/391,669.
Application 17/391,669 is a continuation of application No. 15/270,308, filed on Sep. 20, 2016, granted, now 11,109,785.
Claims priority of provisional application 62/222,807, filed on Sep. 24, 2015.
Prior Publication US 2021/0353191 A1, Nov. 18, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. A61B 5/00 (2006.01); A61B 5/15 (2006.01); A61M 5/32 (2006.01)
CPC A61B 5/150106 (2013.01) [A61B 5/15003 (2013.01); A61B 5/150396 (2013.01); A61M 5/3286 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A needle having a multi-beveled point comprising:
a cannula having a lumen and defining a central axis therethrough and further defining a reference plane passing through the central axis and bisecting the cannula, the multi-beveled point provided at one end of the cannula,
wherein the multi-beveled point comprises:
a primary bevel;
two middle bevels; and
two tip bevels,
wherein each of the middle bevels extends between the primary bevel and one of the tip bevels,
wherein the primary bevel is provided on the cannula at a first angle of rotation, the two middle bevels are provided on the cannula at a second angle of rotation, and the two tip bevels are provided on the cannula at a third angle of rotation,
wherein the first angle of rotation, the second angle of rotation, and the third angle of rotation are each defined relative to the reference plane perpendicular to the central axis, and
wherein the second angle of rotation is equal to the third angle of rotation such that the two middle bevels and the two tip bevels comprise outwardly directed surfaces having a same angle of rotation, wherein the second angle of rotation and the third angle of rotation are each between 30° and 50°.