US 11,051,822 B2
Implant detachment with thermal activation
Vincent Divino, Mission Viejo, CA (US); and Richard Rhee, Anaheim Hills, CA (US)
Assigned to COVIDIEN LP, Mansfield, MA (US)
Filed by Covidien LP, Mansfield, MA (US)
Filed on Jun. 1, 2017, as Appl. No. 15/610,713.
Claims priority of provisional application 62/355,431, filed on Jun. 28, 2016.
Prior Publication US 2017/0367709 A1, Dec. 28, 2017
Int. Cl. A61B 17/12 (2006.01); A61B 17/00 (2006.01); A61M 29/02 (2006.01)
CPC A61B 17/12113 (2013.01) [A61B 17/0057 (2013.01); A61B 17/12031 (2013.01); A61M 29/02 (2013.01); A61B 17/1214 (2013.01); A61B 17/12172 (2013.01); A61B 2017/00632 (2013.01); A61B 2017/00862 (2013.01); A61B 2017/00867 (2013.01); A61B 2017/00955 (2013.01); A61B 2017/12054 (2013.01); A61B 2017/12077 (2013.01)] 21 Claims
OG exemplary drawing
 
1. A delivery system, comprising:
an implant comprising (i) a proximal portion that defines a port at a proximal end of the implant and having a port inner cross-sectional dimension and (ii) a cavity distal to the port and having a cavity inner cross-sectional dimension, larger than the port inner cross-sectional dimension; and
a pusher device comprising arms extending distally from a junction of the pusher device and through the port, with distal sections of the arms disposed within the cavity, the arms having a first configuration in which the distal sections are a first distance apart to define a first outer cross-sectional dimension, larger than the port inner cross-sectional dimension, wherein, in the first configuration, the distal sections of the arms are movable in a distal direction relative to the port, the arms having a second configuration in which the distal sections are a second distance apart to define a second outer cross-sectional dimension, smaller than the port inner cross-sectional dimension, and the arms being configured to transition from the first configuration to the second configuration when above a transition temperature.