Rotation control assemblies for tubes
AssigneeEdwards Lifesciences Corporation
InventorPeleg Harel
Life of this patent
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Abstract
A delivery system includes a rotation control assembly having a rotatable body defining an aperture, and a thin-wall tube extending through the aperture and comprising a first window and a second window. The rotation control assembly further includes a first protrusion and a second radial protrusion extending from the rotatable body into the first window and the second window. The first and second protrusions define first and second contact surfaces that face circumferentially opposite directions, such that rotation of the rotatable body in a clockwise or counterclockwise direction causes the appropriate contact surface to push against a contact edge of the corresponding window, to impart rotational movement of the tube therewith.
Claims24
A system comprising:
- a handle comprising a rotation control assembly which comprises:
- a rotatable body defining an aperture;
- at least one first protrusion comprising a first contact surface and configured to extend radially into the aperture;
- at least one second protrusion comprising a second contact surface and configured to extend radially into the aperture;
- a tube comprising a tube wall having a tube wall thickness and defining a tube lumen, wherein the tube extends through the aperture and comprises:
- at least one first window radially extending through the tube wall and defining a first contact edge;
- and
- at least one second window radially extending through the tube wall and defining a second contact edge.
A method comprising:
- advancing a system comprising a tube, over a guidewire, to a target tissue, the system comprising a handle comprising a rotation control assembly, wherein the rotation control assembly comprises a rotatable body defining an aperture through which the tube extends, a first protrusion extending radially from the rotatable body into a first window of the tube, and a second protrusion extending radially from the rotatable body into a second window of the tube;
- and
- rotating the rotatable body in a first circumferential direction or a second circumferential direction;
- wherein rotating the rotatable body in the first circumferential direction causes a first contact surface thereof to push against a first contact edge of the first window, thereby causing the tube to rotate in the first circumferential direction along with the rotatable body;
- wherein rotating the rotatable body in the second circumferential direction causes a second contact surface thereof to push against a second contact edge of the second window, thereby causing the tube to rotate in the second circumferential direction along with the rotatable body;
- and
- wherein the first contact surface and the second contact surface face circumferentially opposite directions.
Dependencies are inferred from the claim text.