US 12,201,787 B2
Medical device handle and method of use
Michael S. H. Chu, Brookline, MA (US); Ashley Taylor, Harrisburg, PA (US); and Brian Watschke, Minneapolis, MN (US)
Assigned to Boston Scientific Scimed, Inc., Maple Grove, MN (US)
Filed by Boston Scientific Scimed, Inc., Maple Grove, MN (US)
Filed on Oct. 28, 2021, as Appl. No. 17/452,736.
Application 17/452,736 is a continuation of application No. 16/406,577, filed on May 8, 2019, granted, now 11,185,667.
Claims priority of provisional application 62/700,634, filed on Jul. 19, 2018.
Prior Publication US 2022/0047848 A1, Feb. 17, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. A61B 17/22 (2006.01); A61B 10/06 (2006.01); A61B 17/00 (2006.01); A61M 25/01 (2006.01); A61B 17/221 (2006.01); A61B 17/29 (2006.01)
CPC A61M 25/0136 (2013.01) [A61B 10/06 (2013.01); A61B 17/22031 (2013.01); A61B 2017/00367 (2013.01); A61B 2017/22035 (2013.01); A61B 17/221 (2013.01); A61B 2017/2932 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A retrieval device, comprising:
an end effector moveable between a retracted configuration and an expanded configuration, the end effector having a diameter of no greater than 3 French;
a drive wire extending from a proximal end to a distal end configured to be coupled to the end effector;
a handle cannula extending from a proximal end to a distal end and configured to receive the drive wire therethrough, the handle cannula including a crimped portion configured to crimp the handle cannula to the drive wire such that rotation of the handle cannula transfers torque to rotate the drive wire, an outer profile of the handle cannula being non-circular; and
actuation assembly configured to slidably receive a shaft member therein, a distal end of the actuation assembly being coupled to a sheath sized and shaped to receive the drive wire and end effector therethrough, the actuation assembly moveable between a proximal configuration in which the sheath is moved proximally to expand the end effector and a distal configuration in which the sheath is moved distally to retract the end effector, the actuation assembly including a rotation mechanism keyed to the outer profile of the handle cannula such that rotation of the rotation mechanism transfers torque to rotate the handle cannula;
wherein the actuation assembly includes a first actuation member and a second actuation member, the first actuation member extending from a proximal end to a distal end coupled to the second actuation member, the second actuation member extending from a keyed proximal end to a distal end coupled to the sheath, the second actuation member including the rotation mechanism.