Rotary debulking atherectomy device with a crossing balloon
AssigneeCordis US Corp.
InventorWilliam Kelly
Life of this patent
Estimating the term…
Abstract
An atherectomy system that utilizes an anchoring balloon with a rotary debulker and a crossing balloon to remove or debulk lesions formed on the interior wall surface of a body vessel. The system may include a first balloon coupled to a first tubular member, a rotary debulker coupled to a second tubular member, a second balloon coupled to both the third tubular member and the axially moveable fourth tubular member such that the second balloon is disposed inside the third tubular member. Methods for operating this device are also provided.
Claims26
An atherectomy device that includes a handle coupled to a working tip via a plurality of axially disposed tubular members, the handle including:
- a housing that extends from a first housing end to a second housing end along a housing longitudinal axis, the second housing end being coupled to a first tubular member, the first tubular member surrounding at least a portion of a second tubular member, the second tubular member being coupled to a rotary member proximate the housing and disposed around a portion of a third tubular member, the third tubular member disposed around a portion of an axially moveable fourth tubular member;
- and
- the working tip spaced from the handle and extending along a working tip longitudinal axis, the working tip including:
- a first balloon coupled to the first tubular member,
- a rotary debulker coupled to the second tubular member, and
- a second balloon coupled to both the third tubular member and the axially moveable fourth tubular member such that the second balloon is disposed inside the third tubular member and wherein a distal end of the axially movable fourth tubular member is configured to be extendable beyond a distal end of the third tubular member.
An atherectomy tip for use with a handle, the atherectomy tip comprising:
- an outer sheath extending along a longitudinal axis, the outer sheath surrounding a portion of a first tubular member, the first tubular member surrounding at least a portion of a second tubular member, the second tubular member disposed around a portion of a third tubular member, the third tubular member disposed around a portion of an axially moveable fourth tubular member;
- a first balloon coupled to the first tubular member;
- a rotary debulker being coupled to the second tubular member so that the rotary debulker is rotatable about the longitudinal axis by rotational motion of the second tubular member about the longitudinal axis;
- and
- a second balloon coupled to both the third tubular member and the axially moveable fourth tubular member such that the second balloon is disposed partly inside the third tubular member and wherein a distal end of the axially movable fourth tubular member is configured to be extendable beyond a distal end of the third tubular member.
An atherectomy device that includes a handle coupled to a working tip via a plurality of axially disposed tubular members, the handle including:
- a housing that extends from a first housing end to a second housing end along a housing longitudinal axis, the second housing end being coupled to a first tubular member, the first tubular member surrounding at least a portion of a second tubular member, the second tubular member being coupled to a rotary member proximate the housing and disposed around a portion of a third tubular member, the third tubular member disposed around a portion of an axially moveable fourth tubular member;
- and
- the working tip spaced from the handle and extending along a working tip longitudinal axis, the working tip including:
- a first balloon coupled to the first tubular member,
- a rotary debulker coupled to the second tubular member, and
- a second balloon having a first end coupled to the axially movable fourth tubular member and a second end coupled to the third tubular member;
- wherein the fourth tubular member is supported for axial movement along the working tip longitudinal axis.
Dependencies are inferred from the claim text.