US 11,730,486 B2
Pusher arm and ball release mechanism for embolic coils
Nicholas Tassoni, Andover, MA (US); Mary-Claire Anderson, Minneapolis, MN (US); Gary Pederson, Albertville, MN (US); Ken Zhang, Maple Grove, MN (US); and Martin R Willard, Burnsville, MN (US)
Assigned to Boston Scientific Scimed, Inc., Maple Grove, MN (US)
Filed by Boston Scientific Scimed, Inc., Maple Grove, MN (US)
Filed on Mar. 26, 2020, as Appl. No. 16/830,956.
Application 16/830,956 is a continuation of application No. 15/286,985, filed on Oct. 6, 2016, granted, now 10,631,869.
Claims priority of provisional application 62/237,904, filed on Oct. 6, 2015.
Prior Publication US 2020/0222057 A1, Jul. 16, 2020
This patent is subject to a terminal disclaimer.
Int. Cl. A61B 17/12 (2006.01)
CPC A61B 17/12145 (2013.01) [A61B 17/1214 (2013.01); A61B 17/12031 (2013.01); A61B 2017/12054 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A system for treating a patient, comprising:
a catheter defining a lumen:
a pusher assembly slidably disposed within the lumen;
a constraining element slidably disposed within the lumen having a tubular distal end disposable about a distal portion of the pusher assembly; and
an embolic coil with a proximal end comprising a bulbous element;
wherein the pusher assembly includes a distal receiving element having an elongated planar surface configured to accept at least a portion of the bulbous element, the elongated planar surface having a protrusion extending a distance above the elongated planar surface that is less than 50% of a diameter of the bulbous element.