Catheter system
First Claim
Patent Images
1. A catheter system comprising:
- a handle comprising a handle housing, and an inner shuttle disposed within the handle housing;
an elongate hollow shaft having a proximal end connected to the handle and a distal end remote from the handle;
a working component carried by the shaft and having at least one characteristic that is adjustable;
an actuator rotatably mounted on the handle for selectively adjusting at least one characteristic of the working component, wherein the actuator is operatively connected to a radially extending lever disposed within the handle and extending through a window in the inner shuttle; and
a control line extending at least in part within the shaft, the control line operatively coupling the actuator with the working component such that rotation of the actuator relative to the handle effects linear translation of the control line to adjust the at least one characteristic of the working component, wherein the working component comprises an electrode basket adjustable between a collapsed configuration and an expanded configuration, wherein rotating the actuator in a first direction drives rotation of the lever within the window of the inner shuttle to thereby increase tension on the control line, causing the electrode basket to transition from the collapsed configuration to the expanded configuration, and wherein rotating the actuator in a second direction drives rotation of the lever within the window of the inner shuttle to thereby release tension on the control line, causing the electrode basket to transition from the expanded configuration to the collapsed configuration.
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Abstract
In a catheter system and method for controlling such a system, an elongate hollow shaft has a proximal end connected to a handle and a distal end remote from the handle. A working component is carried by the shaft and has at least one characteristic that is adjustable. An actuator is rotatably mounted on the handle for selectively adjusting at least one characteristic of the working component. A control line extends at least in part within the shaft. The control line operatively couples the actuator with the working component such that rotation of the actuator relative to the handle effects linear translation of the control line to adjust the at least one characteristic of the working component.
112 Citations
8 Claims
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1. A catheter system comprising:
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a handle comprising a handle housing, and an inner shuttle disposed within the handle housing; an elongate hollow shaft having a proximal end connected to the handle and a distal end remote from the handle; a working component carried by the shaft and having at least one characteristic that is adjustable; an actuator rotatably mounted on the handle for selectively adjusting at least one characteristic of the working component, wherein the actuator is operatively connected to a radially extending lever disposed within the handle and extending through a window in the inner shuttle; and a control line extending at least in part within the shaft, the control line operatively coupling the actuator with the working component such that rotation of the actuator relative to the handle effects linear translation of the control line to adjust the at least one characteristic of the working component, wherein the working component comprises an electrode basket adjustable between a collapsed configuration and an expanded configuration, wherein rotating the actuator in a first direction drives rotation of the lever within the window of the inner shuttle to thereby increase tension on the control line, causing the electrode basket to transition from the collapsed configuration to the expanded configuration, and wherein rotating the actuator in a second direction drives rotation of the lever within the window of the inner shuttle to thereby release tension on the control line, causing the electrode basket to transition from the expanded configuration to the collapsed configuration. - View Dependent Claims (2, 3, 4)
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5. A method of controlling a catheter system of the type having a handle and a working component operatively coupled to the handle by a control line, the method comprising:
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rotating an actuator relative to the handle, and acting on the control line in response to rotation of the actuator using a lever disposed within the handle and operatively coupled the actuator through a window of an inner shuttle disposed within an outer housing of the handle, to effect linear translation of the control line, the linear translation of the control line adjusting at least one characteristic of the working component, wherein the working component is an electrode component basket adjustable between a collapsed configuration and an expanded configuration, the control line being operatively coupled to the electrode basket such that rotation of the actuator in a first direction drives rotation of the lever within the window to thereby increase tension on the control line, causing the electrode basket to transition from the collapsed configuration to the expanded configuration, and such that rotating the actuator in a second direction drives rotation of the lever within the window to thereby release tension on the control line, causing the electrode basket to transition from the expanded configuration to the collapsed configuration. - View Dependent Claims (6, 7, 8)
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Specification