Catheter steering assembly providing asymmetric left and right curve configurations
First Claim
1. A catheter having an elongated tubular body bendable adjacent to its distal end in response to an external force, and a proximal end attached to a handle for manipulating said tubular body by applying the external force thereto, comprising,a steering assembly for applying a bending force on the body, the steering assembly includinga rotatable cam located in said handle,a steering wire operable in response to movement of the rotatable cam for bending the tubular body, said steering wire being attached tangentially to the lateral edges of said rotatable cam by a means for connection, said means for connection of said wire being adjustable so that the corresponding degree of movement of said tubular body in response to rotation of said rotatable cam is altered by adjustment of said connection.
2 Assignments
0 Petitions
Accused Products
Abstract
A catheter has an electrode tip assembly that is bendable at the selection of the user in two different directions. The electrode tip assembly assumes different asymmetric predetermined curve configurations when bent in the two directions and is manipulated by means of steering wires adjustably connected tangentially to the lateral edges of a rotatable cam located in the catheter handle.
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Citations
14 Claims
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1. A catheter having an elongated tubular body bendable adjacent to its distal end in response to an external force, and a proximal end attached to a handle for manipulating said tubular body by applying the external force thereto, comprising,
a steering assembly for applying a bending force on the body, the steering assembly including a rotatable cam located in said handle, a steering wire operable in response to movement of the rotatable cam for bending the tubular body, said steering wire being attached tangentially to the lateral edges of said rotatable cam by a means for connection, said means for connection of said wire being adjustable so that the corresponding degree of movement of said tubular body in response to rotation of said rotatable cam is altered by adjustment of said connection.
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6. A catheter having an elongated tubular body bendable adjacent to its distal end in different first and second directions in response to external forces, and a proximal end attached to a handle for manipulating said tubular body by applying the external forces thereto comprising,
a steering assembly for applying bending forces on the body, the steering assembly including a rotatable cam located in said handle, a first steering wire and a second steering wire operable in response to movement of the rotatable cam for bending the tubular body in a first direction into a first non-linear configuration and in a second direction into a second predetermined nonlinear configuration, each of said steering wires being attached tangentially to the lateral edges of said rotatable cam by a separated, stop member for each wire, said stop member of each wire being adjustable so that the degree of movement of each said wire in response to rotation of said rotatable cam is altered by adjustment of said each stop member.
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12. A catheter having an elongated tubular body, said body having a longitudinal axis and being bendable adjacent its distal end in response to external forces, and having a proximal end attached to a handle for manipulating said tubular body by applying the external forces thereto, comprising,
a steering assembly for applying bending forces on the body, the steering assembly including a movable component located in said handle, a steering wire operable in response to movement of said movable component for bending the tubular body in a first direction into a non-linear configuration, said steering wire having a longitudinal axis being adjustably connected to said movable component by a stop member on the movable component, said stop member being adjustable in a direction parallel to the longitudinal axis of said steering wire whereby the degree of movement of said steering wire in response to movement of said movable component is altered by adjustment of said stop member connection.
Specification