Embolic coil implant system and implantation method

US9186151B2 · kind B2 · utility

Assignee

• Penumbra, Inc. · US

Inventors

• Ben Tompkins · Danville, US
• Arani Bose · New York, US
• Delilah Hui · American Canyon, US
• David Barry · Livermore, US
• Stephen Pons · San Francisco, US
• Aleksander Leynov · Walnut Creek, US

Key dates

• Filing date: Nov 19, 2012
• Grant date: Nov 17, 2015
• Expiry date: Nov 29, 2032

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61B2017/1209
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

Embolic coil implant systems and methods whereby coils are mechanically detachable are disclosed. The coils include a retention element that may be releasably retained within the distal end of an implant tool. The implant tool may include a fulcrum configured to engage a first filament and prevent the release of the coil when the first filament is engaged. Alternatively, an urging means and aperture may be disposed within the sidewall of the implant tool, and a first filament may, in conjunction with the aperture and sidewall, releasably retain the coil until the first filament is withdrawn. The implant tool may also include an alignment member for aligning the first filament.