Implantable medical device fixation

US10112045B2 · kind B2 · utility

Assignee

• Medtronic, Inc. · US

Inventors

• Thomas A. Anderson · New Hope, US
• Douglas D. Nippoldt · Centerville, US
• Richard W. Swenson · Edina, US
• Vladimir Grubac · Brooklyn Park, US
• Matthew D. Bonner · Plymouth, US
• Raymond W. Usher · Coon Rapids, US
• Arshad A. Alfoqaha · Eden Prairie, US

Key dates

• Filing date: Oct 28, 2011
• Grant date: Oct 30, 2018
• Expiry date: Jun 19, 2035

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61N1/3629
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

An assembly includes an implantable medical device (IMD) including a conductive housing, and a fixation element assembly attached to the IMD. The fixation element assembly includes a set of active fixation tines and an insulator to electrically isolate the set of active fixation tines from the conductive housing of the implantable medical device. The active fixation tines in the set are deployable from a spring-loaded position in which distal ends of the active fixation tines point away from the implantable medical device to a hooked position in which the active fixation tines bend back towards the implantable medical device. The active fixation tines are configured to secure the implantable medical device to a patient tissue when deployed while the distal ends of the active fixation tines are positioned adjacent to the patient tissue.