US 11,986,608 B2
Steerable catheter handle design
Charles A Gibson, Malden, MA (US); and Charles E. Brown, Haverhill, MA (US)
Assigned to Boston Scientific Scimed, Inc., Maple Grove, MN (US)
Filed by Boston Scientific Scimed Inc, Maple Grove, MN (US)
Filed on Aug. 20, 2020, as Appl. No. 16/998,181.
Claims priority of provisional application 62/889,311, filed on Aug. 20, 2019.
Prior Publication US 2021/0052853 A1, Feb. 25, 2021
Int. Cl. A61M 25/01 (2006.01)
CPC A61M 25/0147 (2013.01) [A61M 25/0136 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A steerable catheter handle apparatus, the apparatus comprising:
a housing;
a catheter shaft including a proximal portion, a distal portion, and an intermediate portion extending between the proximal portion and the distal portion;
an actuator coupled to the catheter shaft and configured to move longitudinally relative to the housing and longitudinally move the catheter shaft in response to force imparted by a user;
a pulley assembly arranged within the housing and configured to translate in a direction common with the actuator in response to force imparted by the user on the actuator;
a piston assembly arranged within the housing and configured to receive the actuator and allow longitudinal movement of the actuator relative to the housing; and
two steering lines each including a distal end attached to the distal portion of the catheter shaft and a proximal portion configured to engage an end cap of the piston assembly in response to the longitudinal movement of the actuator and alter tension on the steering lines to effect curvature of the distal portion of the catheter shaft.