US 9,808,268 B2
Medical retrieval devices and related methods of use
Andrew J. Campbell, Reading, MA (US); Mark Andrew Hera, Holden, MA (US); Richard C. Tah, Framingham, MA (US); and Steven E. Walak, Natick, MA (US)
Assigned to Boston Scientific Scimed, Inc., Maple Grove, MN (US)
Filed by Boston Scientific Scimed, Inc., Maple Grove, MN (US)
Filed on Nov. 21, 2014, as Appl. No. 14/550,103.
Claims priority of provisional application 61/909,504, filed on Nov. 27, 2013.
Prior Publication US 2015/0148813 A1, May 28, 2015
Int. Cl. A61B 17/42 (2006.01); A61B 17/221 (2006.01); A61B 17/00 (2006.01)
CPC A61B 17/221 (2013.01) [A61B 2017/00964 (2013.01); A61B 2017/2215 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A medical device, comprising:
a member;
at least one actuation member;
a plurality of grasping members extending from the member, each of the grasping members including:
a proximal end;
a distal end;
at least one first section being formed of a first material and a second material; and
a second section located at the distal end of the grasping member, the second section being formed without the first material and having a different stiffness than the at least one first section,
wherein, in an expanded configuration, the second section further includes a bent portion that extends radially outward from a longitudinal axis of the medical device, and
wherein the at least one actuation member is coupled to the second section of at least one grasping member and at least partially surrounds at least a portion of the bent portion.