Epicardial lead delivery system and method
First Claim
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1. A delivery system, comprising:
- a medical electrical lead having a fixation electrode at a distal end;
an elongated delivery catheter having a shaft including a proximal end, a distal end, and a lumen extending from the proximal end to the distal end sized to accept insertion of said medical electrical lead; and
an omni-directional movable wrist mechanism at the distal end of the catheter shaft and a handle at the proximal end of the catheter shaft, said movable wrist mechanism comprising a collar axially aligned with the catheter shaft lumen for passage of the fixation electrode through the collar, a plurality of manipulator arms attached to the collar, an actuator wire coupled to each of the arms and to the handle;
said handle being movable to control the actuator wires in creating an omni-directional motion of the movable wrist mechanism.
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Abstract
A manipulator joined to a distal end of a delivery system shaft includes a plurality of arms and a collar. A proximal portion of each of the arms is joined to the shaft and a distal portion of each of the arms is joined to the collar such that the collar is substantially aligned with a lumen of the shaft. The lumen and the collar slideably and rotatably engage a medical electrical lead while a plurality of control wires, adapted to manipulate the manipulator, join to each of the plurality of manipulator arms in proximity to the distal end of the shaft.
33 Citations
12 Claims
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1. A delivery system, comprising:
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a medical electrical lead having a fixation electrode at a distal end; an elongated delivery catheter having a shaft including a proximal end, a distal end, and a lumen extending from the proximal end to the distal end sized to accept insertion of said medical electrical lead; and an omni-directional movable wrist mechanism at the distal end of the catheter shaft and a handle at the proximal end of the catheter shaft, said movable wrist mechanism comprising a collar axially aligned with the catheter shaft lumen for passage of the fixation electrode through the collar, a plurality of manipulator arms attached to the collar, an actuator wire coupled to each of the arms and to the handle; said handle being movable to control the actuator wires in creating an omni-directional motion of the movable wrist mechanism. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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Specification