Julian N. Nikolchev,Dai T. Ton,Ashish Khera,Donnell W. Gurskis,Steven Bacich
申请号：
US14273383
公开号：
US20140318549A1
申请日:
2014.05.08
申请国别(地区):
US
年份:
2014
代理人:
摘要：
The invention provides intrafallopian devices and non-surgical methods for their placement to prevent conception. The efficacy of the device is enhanced by forming the structure at least in part from copper or copper alloy. The device is anchored within the fallopian tube by a lumen-traversing region of the resilient structure which has helical outer surface, together with a portion of the resilient structure which is biased to form a bent secondary shape, the secondary shape having a larger cross-section than the fallopian tube. The resilient structure is restrained in a straight configuration and transcervically inserted within the fallopian tube, where it is released. Optionally, permanent sterilization s effected by passing a current through there resilisent structure to the tubal walls.
