US 11,672,922 B2
Distal needle and stylet tips
Matthew E. Nickeson, Seattle, WA (US); and Christopher R. Ralph, Woodinville, WA (US)
Assigned to Gyrus ACMI, Inc., Westborough, MA (US)
Filed by Gyrus ACMI Inc., Southborough, MA (US)
Filed on Sep. 22, 2020, as Appl. No. 17/28,247.
Claims priority of provisional application 62/906,470, filed on Sep. 26, 2019.
Prior Publication US 2021/0093800 A1, Apr. 1, 2021
Int. Cl. A61M 5/32 (2006.01); A61M 5/31 (2006.01)
CPC A61M 5/3291 (2013.01) [A61M 5/3202 (2013.01); A61M 2005/311 (2013.01)] 8 Claims
OG exemplary drawing
 
1. An apparatus comprising:
a tip body defining a fluid chamber and receiving a stylet through the fluid chamber; and
a movable member coupleable to the stylet and including a membrane sealably enclosing the fluid chamber, the movable member being configured to move and to open the fluid chamber responsive to extension of the stylet, the membrane configured to release fluid from the fluid chamber upon the extension of the stylet.