Deflectable sheath introducer
First Claim
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1. A deflectable introducer for use with a device for passage into a patient'"'"'s body, the introducer comprising:
- a shaft with a deflectable section, the shaft having a central lumen through which the device can extend;
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.
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Accused Products
Abstract
An introducer has a shaft with a central lumen, a control handle with a deflection assembly, and a tensile member with a distal portion extending along opposing sides of within the shaft and a proximal portion extending within the control handle. The deflection assembly has a deflection arm, and a rotatable member rotationally coupled to the deflection arm, wherein the rocker member has at least one pulley engaged with the proximal tensile member portion. Rotation of the deflection arm in one direction draws the proximal tensile member portion for deflecting the shaft.
70 Citations
16 Claims
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1. A deflectable introducer for use with a device for passage into a patient'"'"'s body, the introducer comprising:
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a shaft with a deflectable section, the shaft having a central lumen through which the device can extend; 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. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A deflectable introducer for use with a device for passage into a patient'"'"'s body, the introducer comprising:
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a shaft with a deflectable section, the shaft having a central lumen through which the device can extend; 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 first and second pulleys, the first pulley engaged with the first proximal portion of the tensile member situated within the control handle and the 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, the distal portion of the tensile member being wrapped around an outer surface of a distal portion of the deflectable section, and the distal portion of the tensile member entering the first and second off-axis channels through first and second ports in a sidewall of the shaft; wherein rotation of the deflection member in one direction rotates the rotatable member such that the first pulley draws on the first proximal portion of the tensile member for deflecting the deflectable section of the shaft in the one direction, and rotation of the deflection member in another direction rotates the rotatable member such that the second pulley draws on the second proximal portion of the tensile member for deflecting the deflectable section of the shaft in the other direction. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16)
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Specification