Don Tran,Martha Barajas-Torres,James Mitchell,Leonel Mendoza,Siyan Som,Jill Mendelson,David Grossman
申请号：
US15291389
公开号：
US20180098848A1
申请日:
2016.10.12
申请国别(地区):
US
年份:
2018
代理人:
摘要：
Delivery devices for delivery of a stented prosthetic heart valve. Various delivery devices include an outer sheath assembly including an outer sheath connected to a capsule that is advanced proximally to retain the prosthetic valve, which is secured over an inner shaft assembly of the delivery device. The delivery device further includes a bumper to provide a smooth transition of the capsule over the prosthetic valve during loading and recapture procedures. The bumper is expandable from a first position to a second position in which a distal end of the bumper is expanded to increase its diameter. The bumper can be biased in the second, expanded position so that the bumper automatically transitions to the expanded position upon retraction of the outer sheath.
