US 12,064,570 B2
Deflectable sheath introducer
Jeffrey W. Schultz, Anaheim, CA (US)
Assigned to Biosense Webster, Inc., Irvine, CA (US)
Filed by BIOSENSE WEBSTER, INC., Irvine, CA (US)
Filed on Apr. 19, 2021, as Appl. No. 17/234,561.
Application 17/234,561 is a continuation of application No. 16/102,008, filed on Aug. 13, 2018, granted, now 10,980,976.
Application 16/102,008 is a continuation of application No. 12/346,834, filed on Dec. 30, 2008, granted, now 10,046,141, issued on Aug. 14, 2018.
Prior Publication US 2021/0236775 A1, Aug. 5, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. A61M 25/01 (2006.01); A61B 17/00 (2006.01)
CPC A61M 25/0136 (2013.01) [A61M 25/0133 (2013.01); A61B 2017/00327 (2013.01); A61M 25/0147 (2013.01); A61M 2025/015 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A deflectable introducer for use with a device for passage into a patient's body, the introducer comprising:
a shaft comprising a central lumen through which the device can extend, the shaft further comprising:
a deflectable section, and
a distal tip section distal of the deflectable section, the distal tip section comprising a distal tip and a transition section between the distal tip and the deflectable section, the transition section being more flexible than the deflectable section;
an elongated control handle defining a longitudinal axis;
a tensile member having first and second proximal portions and a continuous distal portion, the tensile member extending from the control handle to the deflectable section and back to the control handle, wherein the control handle has a deflection assembly comprising a deflection member and a rotatable member, the deflection member being rotatable about an axis generally perpendicular to the longitudinal axis of the control handle, the rotatable member being rotationally coupled to the deflection member, the rotatable member having a first pulley engaged with the first proximal portion of the tensile member situated within the control handle and a second pulley engaged with the second proximal portion of the tensile member situated within the control handle, wherein the shaft includes first and second off-axis channels and a distal transition channel proximal of a distal end of the central lumen and extending generally transverse to the first and second off-axis channels, the distal transition channel having a semi-circular shape that extends partially around a circumference of the central lumen to connect the first and second off-axis channels, the distal portion of the tensile member extends through the first and second off-axis channels and the distal transition channel, and the distal portion of the tensile member enters each off-axis channel through a port in a sidewall of the shaft;
wherein manipulation of the deflection member in one direction draws on the first proximal portion of the tensile member for deflecting the deflectable section of the shaft in the one direction, and manipulation of the deflection member in another direction draws on the second proximal portion of the tensile member for deflecting the deflectable section of the shaft in the other direction.