Stability device for use with percutaneous delivery systems
First Claim
Patent Images
1. A prosthetic heart valve delivery device, comprising:
- an elongate catheter tube having a first end portion, a second end portion, a first lumen, a second lumen, and a third lumen, wherein the first lumen is radially centrally disposed, the second lumen is disposed radially outwardly from the first lumen, and the third lumen is disposed radially outwardly from the first lumen and is directly opposed to the second lumen such that a first plane bisecting the second lumen also bisects the third lumen;
an elongate flexible member disposed in the second lumen of the catheter tube; and
an elongate stability member formed of nitinol and disposed in and axially moveable relative to the third lumen of the catheter tube and the flexible member in a direction parallel to a central longitudinal axis of the catheter tube, wherein the stability member comprises a C-shape cross-sectional profile in a second plane perpendicular to the central longitudinal axis of the catheter tube and perpendicular to the first plane, and wherein the stability member is relatively stiffer than the catheter tube and the flexible member.
2 Assignments
0 Petitions
Accused Products
Abstract
A delivery system for stabilizing a catheter shaft across an aortic arch can include one or more stabilizing members configured to fix or stabilize the position of the catheter relative to the aortic arch of a patient.
-
Citations
20 Claims
-
1. A prosthetic heart valve delivery device, comprising:
-
an elongate catheter tube having a first end portion, a second end portion, a first lumen, a second lumen, and a third lumen, wherein the first lumen is radially centrally disposed, the second lumen is disposed radially outwardly from the first lumen, and the third lumen is disposed radially outwardly from the first lumen and is directly opposed to the second lumen such that a first plane bisecting the second lumen also bisects the third lumen; an elongate flexible member disposed in the second lumen of the catheter tube; and an elongate stability member formed of nitinol and disposed in and axially moveable relative to the third lumen of the catheter tube and the flexible member in a direction parallel to a central longitudinal axis of the catheter tube, wherein the stability member comprises a C-shape cross-sectional profile in a second plane perpendicular to the central longitudinal axis of the catheter tube and perpendicular to the first plane, and wherein the stability member is relatively stiffer than the catheter tube and the flexible member. - View Dependent Claims (2, 3, 4, 5, 6, 7)
-
-
8. A prosthetic heart valve delivery device, comprising:
-
an elongate catheter tube having a first end portion, a second end portion, a first lumen, a second lumen, and a third lumen, wherein the first lumen is radially centrally disposed, wherein the second lumen is disposed radially outwardly from the first lumen and has a C-shape cross-sectional profile in a first plane perpendicular to the length of the catheter tube, wherein the third lumen is disposed radially outwardly from the first lumen, and wherein the third lumen is directly opposed to the second lumen such that a second plane perpendicular to the first plane bisects the second lumen and bisects the third lumen; an elongate stability member disposed in and axially moveable relative to the second lumen of the catheter tube so as to adjust the stiffness of the catheter tube, wherein the stability member has a C-shape cross-sectional profile in the first plane, and wherein the stability member is formed of nitinol; and an elongate flexible member disposed in the third lumen of the catheter tube, wherein the flexible member is a flat ribbon and is relatively more flexible than the stability member. - View Dependent Claims (9, 10, 11, 12)
-
-
13. A prosthetic heart valve delivery assembly comprising:
-
a prosthetic heart valve comprising an annular frame and a plurality of leaflets supported by the frame, wherein the frame is radially compressible to a compressed configuration and radially expandable from the compressed configuration to an expanded configuration; and a delivery apparatus comprising a catheter tube, a valve catheter, an elongate flexible member, and a stability member, wherein the catheter tube has a first lumen, a second lumen, and a third lumen, the first lumen being radially centrally disposed on the catheter tube, the second lumen being disposed radially outwardly from the first lumen, the third lumen being disposed radially outwardly from the first lumen and circumferentially spaced relative to the second lumen and having a C-shape cross-sectional profile in a plane perpendicular to a central longitudinal axis of the catheter tube, and the valve catheter extending coaxially through the first lumen, wherein the prosthetic heart valve is mounted to a distal end portion of the valve catheter in the compressed configuration, wherein the flexible member is disposed in the second lumen of the catheter tube, wherein the stability member is disposed in and axially moveable relative to the third lumen of the catheter tube, and wherein the stability member is formed of nitinol, comprises a C-shape cross-sectional profile in the plane perpendicular to the central longitudinal axis of the catheter tube, and is configured to be relatively stiffer than the catheter tube and the flexible member, and wherein the flexible member and the stability member are configured such that positioning the flexible member and the stability member in an axially overlapping configuration relative to each other causes the catheter tube to move from a curved configuration to a straighter configuration and such that positioning the flexible member and the stability member in an axially offset configuration relative to each other causes the catheter tube to bend from the straighter configuration to the curved configuration. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
-
Specification