Cardiovascular Catheter
AssigneeSiemens Medical Solutions USA, Inc.
InventorsGholamreza Mirzalou, Mathew Rahimi, Shahab S. Negahban
Life of this patent
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Abstract
A steerable catheter including a flexible elongate tube having control line lumens disposed between the inner wall surface and the outer wall surface and extending along a length of the elongate tube. The catheter further includes an anchor disposed at a distal end of the elongate tube. The catheter further includes continuous control lines, extending through the control line lumens. A portion of each of the continuous control lines is secured at the anchor so that retraction toward a proximal end of the elongate tube of ends of the continuous control lines causes movement of the distal end of the elongate tube in two directions in two orthogonal planes of movement.
Claims22
A steerable catheter assembly, comprising:
- a flexible elongate tube having:
- an inner wall surface defining a central lumen and an outer wall surface defining an outer diameter of the tube, and
- a first pair and a second pair of control line lumens disposed between the inner wall surface and the outer wall surface and extending along a length of the elongate tube;
- an anchor disposed at a distal end of the elongate tube, the anchor being cylindrical in shape and having an inner wall surface defining a central lumen of the anchor and an outer wall surface defining an outer diameter of the anchor;
- and
- a first and a second continuous control line, extending through the first and second pair of control line lumens, respectively,
- wherein a portion of each of the first and the second continuous control lines is secured at the anchor so that retraction toward a proximal end of the elongate tube of ends of the first continuous control line causes movement of the distal end of the elongate tube in two directions in a first plane of movement, and retraction toward the proximal end of the elongate tube of ends of the second continuous control line causes movement of the distal end of the elongate tube in two directions in a second plane of movement orthogonal to the first plane of movement.
A method of manufacturing a steerable catheter, the method comprising:
- providing a flexible elongate tube having an inner wall surface defining a central lumen and an outer wall surface defining an outer diameter of the tube, and further having a first pair and a second pair of control line lumens disposed between the inner wall surface and the outer wall surface and extending along a length of the elongate tube;
- providing an anchor at a distal end of the elongate tube, the anchor being cylindrical in shape and having an inner wall surface defining a central lumen of the anchor and an outer wall surface defining an outer diameter of the anchor;
- threading a first and a second continuous control line through the first and second pair of control line lumens, respectively;
- securing a portion of each of the first and the second continuous control lines at the anchor so that retraction toward a proximal end of the elongate tube of ends of the first continuous control line causes movement of the distal end of the elongate tube in two directions in a first plane of movement, and retraction toward the proximal end of the elongate tube of ends of the second continuous control line causes movement of the distal end of the elongate tube in two directions in a second plane of movement orthogonal to the first plane of movement.
Dependencies are inferred from the claim text.