Shaped pull wire for deflectable vascular catheter sheath
AssigneeOscor Inc.
InventorsRamy Awad, Thomas P. Osypka
Life of this patent
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Abstract
A deflectable vascular catheter includes a proximal handle assembly, an elongated sheath extending distally from the proximal handle assembly and including a deflectable distal end portion, an actuation mechanism operatively associated within an interior cavity of the proximal handle assembly for deflecting the distal end portion of the sheath, an anchor ring located at a distal end of the deflectable distal end portion of the sheath, and a pull wire extending from the actuation mechanism to the anchor ring. The pull wire has a non-circular cross-section and is laser welded to an exterior surface of the anchoring ring.
Claims17
A deflectable vascular catheter comprising:
- a) a handle assembly;
- b) an elongated sheath extending distally from the handle assembly, the sheath including a deflectable distal end portion;
- c) an actuation mechanism operatively associated with the handle assembly for deflecting the distal end portion of the sheath;
- d) at least one anchor ring located at the deflectable distal end portion of the sheath, wherein the anchor ring has an exterior surface;
- and
- e) at least one pull wire extending from the actuation mechanism to the at least one anchor ring, wherein the at least one pull wire has a longitudinal axis and a semi-circular cross-sectional shape with a concave inner surface, the concave inner surface contacting the exterior surface of the anchor ring.
A deflectable vascular catheter, comprising:
- a) a handle assembly;
- b) an elongated sheath extending distally from the handle assembly, the sheath including a deflectable distal end portion;
- c) an actuation mechanism operatively associated with the handle assembly for deflecting the distal end portion of the sheath in at least one direction;
- d) an anchor ring located at the deflectable distal end portion of the sheath, wherein the anchor ring has an exterior surface;
- and
- e) at least one pull wire extending from the actuation mechanism to the exterior surface of the anchor ring, wherein the at least one pull wire has a longitudinal axis and a semi-circular cross-sectional shape with a concave inner surface, the concave inner surface contacting the exterior surface of the anchor ring.
A deflectable vascular catheter, comprising:
- a) a handle assembly;
- b) an elongated sheath extending distally from the-handle assembly, the sheath including a deflectable distal end portion;
- c) an actuation mechanism operatively associated with the handle assembly for deflecting the distal end portion of the sheath in at least two directions;
- d) an anchor ring located at the deflectable distal end portion of the sheath, wherein the anchor ring has an exterior surface;
- e) a first pull wire extending from the actuation mechanism to a first weld location on the exterior surface of the anchor ring, wherein the first pull wire has a first longitudinal axis and a semi-circular cross-sectional shape with a first concave inner surface, the first concave inner surface contacting the exterior surface of the anchor ring;
- and
- f) a second pull wire extending from the actuation mechanism to a second weld location on the exterior surface of the anchor ring, wherein the second pull wire has a second longitudinal axis and a semi-circular cross-sectional shape with a second concave inner surface, the second concave inner surface contacting the exterior surface of the anchor ring, and wherein the first and second weld locations are different.
Dependencies are inferred from the claim text.