Delivery systems and methods of implantation for prosthetic heart valves
First Claim
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1. A delivery system for delivering an implantable stented device to a lumen of a patient, the delivery system comprising:
- an elongated body comprising a proximal end and a distal end comprising a tip;
a plurality of stent engagement elements, wherein each stent engagement element includes an elongated wire and an angled wire tip for engagement with the implantable stented device;
a plurality of sleeves, wherein each sleeve surrounds a respective stent engagement element, wherein the plurality of sleeves and stent engagement elements include a first position wherein each sleeve surrounds a respective one of the angled wire tip and a portion of the implantable stented device and a second position wherein each sleeve is spaced proximally of the respective angled wire tip;
a driver mechanism positioned at the proximal end of the elongated body to axially translate the plurality of stent engagement elements from the first position to the second position, wherein the driver mechanism is axially translatable toward and away from the distal end of the elongated body;
an elongated threaded rod located axially distal to the driver mechanism; and
a sheath, at least a portion of which surrounds a portion of the elongated threaded rod, comprising an elongated tubular portion having a hollow interior portion with a first diameter that is sized for compression and retention of the implantable stented device in a compressed configuration for delivery to a body lumen, wherein with the stent engagement elements and the sleeves in the second position, the sheath is configured such that advancement of the sheath distally causes the angled wire tips to move towards a central longitudinal axis of the delivery system to disengage the angled wire tips from the implantable stented device.
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Abstract
A delivery system for delivering an implantable stented device to a lumen of a patient, the delivery system including an elongated body having a proximal end and a distal end, a driver mechanism positioned at the proximal end of the elongated body, an elongated threaded rod located axially distal to the driver mechanism, and a sheath including an elongated tubular portion having a hollow interior portion with a first diameter that is sized for compression and retention of the implantable stented device in a compressed configuration for delivery to a body lumen.
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Citations
17 Claims
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1. A delivery system for delivering an implantable stented device to a lumen of a patient, the delivery system comprising:
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an elongated body comprising a proximal end and a distal end comprising a tip; a plurality of stent engagement elements, wherein each stent engagement element includes an elongated wire and an angled wire tip for engagement with the implantable stented device; a plurality of sleeves, wherein each sleeve surrounds a respective stent engagement element, wherein the plurality of sleeves and stent engagement elements include a first position wherein each sleeve surrounds a respective one of the angled wire tip and a portion of the implantable stented device and a second position wherein each sleeve is spaced proximally of the respective angled wire tip; a driver mechanism positioned at the proximal end of the elongated body to axially translate the plurality of stent engagement elements from the first position to the second position, wherein the driver mechanism is axially translatable toward and away from the distal end of the elongated body; an elongated threaded rod located axially distal to the driver mechanism; and a sheath, at least a portion of which surrounds a portion of the elongated threaded rod, comprising an elongated tubular portion having a hollow interior portion with a first diameter that is sized for compression and retention of the implantable stented device in a compressed configuration for delivery to a body lumen, wherein with the stent engagement elements and the sleeves in the second position, the sheath is configured such that advancement of the sheath distally causes the angled wire tips to move towards a central longitudinal axis of the delivery system to disengage the angled wire tips from the implantable stented device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A delivery system for delivering an implantable stented device to a lumen of a patient, the delivery system comprising:
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an elongated body comprising a proximal end and a distal end comprising a tip; a driver mechanism positioned at the proximal end of the elongated body; an elongated threaded rod located axially distal to the driver mechanism; a sheath comprising an elongated tubular portion having a hollow interior portion that is sized for compression and retention of the implantable stented device in a compressed configuration for delivery to a body lumen; a plurality of stent engagement mechanisms, each of which is axially translatable from a distal end of the sheath by the driver mechanism and each of which includes a first portion and a second portion that extends outwardly at an angle from the first portion so that a distal end of the second portion is outwardly projecting from the first portion of its respective stent engagement mechanism, wherein the second portion of each engagement mechanism is engageable with a proximal end of a stented device; and a plurality of sleeves surrounding the stent engagement mechanisms; wherein movement of the driver mechanism in a proximal direction and a distal direction causes movement of the stent engagement mechanisms between a stent engagement position wherein each sleeve surrounds the second portion of a respective one of the stent engagement mechanisms and a portion of the implantable stent device and a stent deployment position wherein the second portion of each stent engagement mechanism is spaced axially distal of each respective sleeve, respectively, wherein with the stent engagement mechanisms in the stent deployment position, movement of the sheath distally causes the stent engagement mechanisms to move toward a central axis of the elongated body such that the second portions of the stent engagement mechanisms disengage from the implantable stented device. - View Dependent Claims (17)
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Specification