| 摘要 |
A delivery apparatus for delivering a stent-valve for implantation within the body, the delivery apparatus configured for introduction into the body through an arterial introducer of a type having a stem insertable into the body and a mouth section that remains outside the body, the mouth section including a haemostasis valve, and wherein the delivery apparatus comprises: a first constraining sheath at a stent-valve accommodation region of the apparatus at a distal end of the apparatus, and configured for constraining at least a portion of a stent-valve at the accommodation region in a radially collapsed configuration; a delivery introducer captive on the delivery apparatus, and slidable between a first position surrounding at least a portion of the stent-valve accommodation region, and a second position in which the delivery introducer slides proximally of the stent-valve accommodation region; wherein the delivery introducer is insertable at least partly into the mouth of a said arterial introducer, the delivery introducer configured for introducing the stent-accommodation region through the haemostasis valve. |
| 主权项 |
1. A system comprising a stent-valve for implantation within a body, and a delivery apparatus therefor, the delivery apparatus configured for introduction into the body through an arterial introducer including a haemostasis valve, the delivery apparatus comprising:
a stent-valve accommodation region at a distal end of the apparatus for accommodating the stent-valve in a radially collapsed configuration; a first constraining sheath at the stent-valve accommodation region and configured for constraining a first portion of the stent-valve, in use, in a radially collapsed configuration; a second constraining sheath at the stent-valve accommodation region and configured for constraining a second portion of the stent-valve, in use, in a radially collapsed configuration, wherein a third portion of the stent-valve between the first and second portions is, in use, non-covered by the first and second constraining sheaths and bulges relative to the first and second portions; and a delivery introducer captive on the delivery apparatus, and slidable between a first position surrounding at least a portion of the stent-valve accommodation region, and a second position in which the delivery introducer slides proximally of the stent-valve accommodation region; wherein in said first position, the delivery introducer is configured for confining the third portion of the stent-valve; and wherein the delivery introducer is insertable at least partly into a mouth of said arterial introducer, the delivery introducer configured for introducing the stent-accommodation region through the haemostasis valve. |
