The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 27, 2014
Filed:
Aug. 20, 2012
Julian N. Nikolchev, Portola Valley, CA (US);
Dai T. Ton, San Jose, CA (US);
Ashish Khera, San Francisco, CA (US);
Donnell W. Gurskis, Pleasanton, CA (US);
Steven Bacich, Half Moon Bay, CA (US);
Julian N. Nikolchev, Portola Valley, CA (US);
Dai T. Ton, San Jose, CA (US);
Ashish Khera, San Francisco, CA (US);
Donnell W. Gurskis, Pleasanton, CA (US);
Steven Bacich, Half Moon Bay, CA (US);
Bayer Essure Inc., Milpitas, CA (US);
Abstract
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 resilient structure to the tubal walls.