STEERABLE DELIVERY SYSTEM FOR REPLACEMENT MITRAL VALVE AND METHODS OF USE
First Claim
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1. A delivery system for delivering an expandable implant to a body location, the delivery system comprising:
- an elongate shaft assembly comprising a proximal end and a distal end, wherein the elongate shaft assembly comprises an implant retention area configured to retain the expandable implant in a compressed configuration, wherein the elongate shaft assembly comprises;
an elongate tubular shaft comprising a proximal end and a distal end and a longitudinal axis extending between the proximal end and the distal end, wherein the elongate tubular shaft comprises a plurality of slots spaced apart longitudinally along a length of the elongate tubular shaft, each of the plurality of slots being oriented substantially perpendicular to the longitudinal axis and comprising a proximal side, a distal side, and two circumferentially spaced apart opposite ends;
wherein each slot forms a gap between the proximal and distal sides of the slot that is configured to close upon application of force to the elongate tubular shaft;
wherein the opposite ends of the slots are separated from each other by a spine portion extending longitudinally along the length of the elongate tubular shaft;
wherein the position and/or shape of the slots varies along the length of the elongate tubular shaft to provide different bending characteristics to different portions of the elongate tubular shaft.
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Abstract
Devices, systems and methods are described herein to provide improved steerability for delivering a prosthesis to a body location, for example, for delivering a replacement mitral valve to a native mitral valve location. A delivery component can have a plurality of slots that provide for desired bending of the delivery component, particularly compound bending of the delivery component that can facilitate steering of the delivery component in three dimensions.
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Citations
20 Claims
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1. A delivery system for delivering an expandable implant to a body location, the delivery system comprising:
an elongate shaft assembly comprising a proximal end and a distal end, wherein the elongate shaft assembly comprises an implant retention area configured to retain the expandable implant in a compressed configuration, wherein the elongate shaft assembly comprises; an elongate tubular shaft comprising a proximal end and a distal end and a longitudinal axis extending between the proximal end and the distal end, wherein the elongate tubular shaft comprises a plurality of slots spaced apart longitudinally along a length of the elongate tubular shaft, each of the plurality of slots being oriented substantially perpendicular to the longitudinal axis and comprising a proximal side, a distal side, and two circumferentially spaced apart opposite ends; wherein each slot forms a gap between the proximal and distal sides of the slot that is configured to close upon application of force to the elongate tubular shaft; wherein the opposite ends of the slots are separated from each other by a spine portion extending longitudinally along the length of the elongate tubular shaft; wherein the position and/or shape of the slots varies along the length of the elongate tubular shaft to provide different bending characteristics to different portions of the elongate tubular shaft. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A delivery system for delivering an expandable implant to a body location, the delivery system comprising:
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an elongate shaft assembly comprising a proximal end and a distal end and a lumen extending between the proximal end and the distal end, wherein the elongate shaft assembly comprises an implant retention area configured to retain a distal end of the expandable implant in a compressed configuration; a mid shaft assembly located within the lumen of the elongate shaft assembly and comprising a proximal end and a distal end and a lumen extending between the proximal end and the distal end, wherein the distal end of the mid shaft assembly comprises an outer retention ring configured to retain a proximal end of the expandable implant in the compressed configuration; an inner assembly located within the lumen of the mid shaft assembly and comprising a proximal end and a distal end and a lumen extending between the proximal end and the distal end, wherein the distal end of the inner assembly is configured to releasably retain the proximal end of the expandable implant; and a spacer sleeve comprising a proximal end and a distal end and a lumen extending between the proximal end and the distal end, the spacer sleeve located radially between the mid shaft assembly and the inner assembly, wherein the spacer sleeve is located within the lumen of the mid shaft assembly, and the inner assembly is located within the lumen of the spacer sleeve. - View Dependent Claims (13)
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14. A delivery system for delivering an expandable implant to a body location, the delivery system comprising:
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an elongate deflectable delivery component configured to at least partially retain the expandable implant, the elongate deflectable delivery component configured to bend to assist in steering the delivery system to the body location; and a handle comprising; a rotatable deflection actuator configured to cause desired bending of the deflectable delivery component; threading on an outer surface of the handle; and a rotatable retraction actuator configured to mate with the threading, the rotatable retraction actuator being operably connected to the elongate deflectable delivery component; wherein rotation of the rotatable retraction actuator causes the rotatable retraction actuator and the rotatable deflection actuator to translate proximally along the threading, thereby translating the elongate deflectable delivery component proximally to at least partially release the expandable implant. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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Specification