PERCUTANEOUS IMPLANT EXTRACTION DEVICE

• US 20130325098A1
• Filed: 05/20/2013
• Published: 12/05/2013
• Est. Priority Date: 10/24/2007
• Status: Abandoned Application

• Current Assignee: Edwards Lifesciences Corporation
• Original Assignee: Edwards Lifesciences Corporation
• Inventors: Desai, Pranav, Khanna, Rajesh
• Application Number:
  US13/897,679
• Publication Number:
  US 20130325098A1
• Time in Patent Office: Days
• US Class Current: 623/1.11
• CPC Class Codes: A61F 2/95 Instruments specially adapted for placement or removal of stents or stent-grafts
• CPC Class Codes: A61F 2002/9528 for retrieval of stents
• CPC Class Codes: A61M 2025/1052 for temporarily occluding a vessel for isolating a sector
• CPC Class Codes: A61M 25/0045 multi-layered, e.g. coated coating materials A61L29/08
• CPC Class Codes: A61M 25/0071 Multiple separate lumens multiple separate lumens throughout the catheter A61M25/0026

Abstract

A minimally invasive catheter system and method for extraction of a shape memory device such as a nitinol stent, from inside a tubular organ, is provided. The catheter system comprises a multi-lumen tube with at least one expandable balloon and an extraction device. The multi-lumen tube has multiple ports, which are used for injecting fluid inside the tubular organ and the expandable balloon, and inserting the extraction device. The catheter system is inserted inside the lumen of the tubular organ percutaneously. A cold fluid is injected into the expandable balloon and the lumen of the tubular organ. This cold fluid converts the shape memory device from an expanded state to a collapsed state. The shape memory device in the collapsed state is then removed with the help of the extraction device.

Claims

1. A system for extraction of an expandable implant from inside the body, the system comprising:

a multi-lumen tube for insertion into the blood vessel; and

an extraction device adapted to be introduced through a port in a lumen of the multi-lumen tube, the extraction device adapted to dislodge the expandable implant from inside the body.