Adjustable blood filtration system

US6656204B2 · kind B2 · utility

Assignee

• Embolx, Inc. · US

Inventors

• William M. Ambrisco · Mountain View, US
• Richard O. Murphy · Sunnyvale, US
• Timothy J. Wood · Los Gatos, US
• Roman Turovskiy · San Francisco, US
• Tracy D. Maahs · Rancho Santa Margarita, US
• Bruce Addis · Redwood City, US

Key dates

• Filing date: Oct 31, 2001
• Grant date: Dec 2, 2003
• Expiry date: Mar 18, 2022

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61F2230/008
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A modular blood filter apparatus and methods of use. The modular filter apparatus includes an adjustable frame capable of assuming enlarged and contracted conditions and a frame sizing mechanism associated with the frame. Certain embodiments include a filter cartridge to protect the adjustable filter device therein. The cartridge may be removably introduced into a blood vessel, and the adjustable filter device may be deployed through the device into the vessel. The adjustable frame may be self-adjusting or externally adjusted to fit the vessel and to capture embolic material in the filter. The frame may be collapsed to the contracted condition, and may be removed from the vessel.