Transcatheter delivery systems and delivery catheters for prosthetic mitral valve delivery, and methods for prosthetic mitral valve delivery using a retrograde approach
First Claim
1. A heart valve prosthesis delivery system, comprising:
- a delivery catheter comprisingan outer tubular component,a distal tip,an elongated tubular component,an arm portion, andan elbow portion coupling the arm portion to the elongated tubular component,wherein the delivery catheter is in a delivery configuration when the elbow portion is in a state of flexion with an angle between the elongated tubular component and the arm portion being substantially 0 degrees, such that the arm portion is in a closed state in which the arm portion is laterally offset from, adjacent to, and substantially parallel with the elongated tubular component, andwherein when the delivery catheter is in the delivery configuration a recessed segment defined between a distal end of the outer tubular component and the distal tip is configured to receive the arm portion in the closed state; and
a heart valve prosthesis releasably attached to the arm portion.
1 Assignment
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Accused Products
Abstract
Transcatheter delivery systems, delivery catheters and associated methods for percutaneous delivery of prosthetic mitral valves using a retrograde approach are disclosed herein. A heart valve delivery system configured in accordance herewith includes a delivery catheter having an elongated tubular component and an articulation assembly at a distal end thereof. The articulation assembly includes an arm portion coupled to the tubular component by an elbow or hinge portion. In a closed, delivery state, the elbow portion positions the arm portion generally parallel to the tubular component for delivery of the delivery catheter through the vasculature. In an open, deployed state, the elbow portion positions the arm portion in a non-axial direction with respect to a longitudinal axis of the tubular component for orienting and positioning a prosthetic valve device carried by the arm portion, e.g., within the native mitral valve region.
0 Citations
26 Claims
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1. A heart valve prosthesis delivery system, comprising:
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a delivery catheter comprising an outer tubular component, a distal tip, an elongated tubular component, an arm portion, and an elbow portion coupling the arm portion to the elongated tubular component, wherein the delivery catheter is in a delivery configuration when the elbow portion is in a state of flexion with an angle between the elongated tubular component and the arm portion being substantially 0 degrees, such that the arm portion is in a closed state in which the arm portion is laterally offset from, adjacent to, and substantially parallel with the elongated tubular component, and wherein when the delivery catheter is in the delivery configuration a recessed segment defined between a distal end of the outer tubular component and the distal tip is configured to receive the arm portion in the closed state; and a heart valve prosthesis releasably attached to the arm portion. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A heart valve prosthesis delivery system, comprising:
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a delivery catheter comprising a first elongated tubular component, a second elongated tubular component having a distal tip portion, an arm portion, and an elbow portion coupling the arm portion to the first elongated tubular component, wherein when the elbow portion is in a state of flexion, the delivery catheter is in a delivery configuration with the arm portion in a closed state in which the arm portion is substantially parallel with the first elongated tubular component, and wherein the distal tip portion of the second elongated tubular component comprises a proximal facing recess that is configured to receive the elbow portion therein to constrain the arm portion in the closed state when the delivery catheter is in the delivery configuration; and a heart valve prosthesis releasably attached to the arm portion. - View Dependent Claims (13, 14, 15)
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16. A heart valve prosthesis delivery system, comprising:
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a delivery catheter comprising an elongated tubular component, an arm portion, an elbow portion coupling the arm portion to the elongated tubular component, and a balloon attached to the arm portion, wherein when the elbow portion is in a state of flexion, the delivery catheter is in a delivery configuration with the arm portion in a closed state in which the arm portion is substantially parallel with the elongated tubular component; and a heart valve prosthesis crimped onto the balloon and releasably attached to the arm portion, wherein the delivery catheter further comprises an inflation lumen that provides fluid communication between the balloon and a source of inflation fluid, and wherein in response to an inflation fluid being directed into the balloon, the arm portion is biased into an open state and the delivery catheter is in at least a partially deployed configuration in which the arm portion is angled away from a longitudinal axis of the elongated tubular component and in which an extension angle formed between the arm portion and the elongated tubular component is less than 90 degrees. - View Dependent Claims (17, 18, 19, 20)
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21. A delivery catheter for intravascular delivery of a heart valve prosthesis to a heart valve of a patient, the delivery catheter comprising:
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a first elongated tubular component having a distal segment and an articulation assembly at the distal segment, wherein the articulation assembly includes an arm portion coupled to the first elongated tubular component by an elbow portion; and a second elongated tubular component disposed adjacent to and parallel with the first elongated tubular component, wherein the second elongated tubular component defines a guidewire lumen, wherein in a state of flexion, the elbow portion positions the arm portion laterally offset from, adjacent to, and generally parallel to the first elongated tubular component for intravascular delivery of the distal segment of the delivery catheter, whereby an angle between the first elongated tubular component and the arm portion is substantially 0 degrees, and wherein in a state of extension, the elbow portion positions the arm portion in an outwardly angled direction with respect to a longitudinal axis of the first elongated tubular component. - View Dependent Claims (22, 23, 24, 25, 26)
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Specification