Browse Prior Art Database

Percutaneous Lead Body Extrusion Design

IP.com Disclosure Number: IPCOM000213163D
Publication Date: 2011-Dec-06
Document File: 1 page(s) / 26K

Publishing Venue

The IP.com Prior Art Database

Abstract

This idea relates to cable extrusions that allow for twists incorporated within extruded body wall. These twists reduce mechanical coupling between a lead body and tip. More particularly, this concept covers percutaneous leads used for neurostimulation. Percutaneous leads are leads that are inserted through a needle into the epidural space at target stimulation site.

This text was extracted from a Microsoft Word document.
This is the abbreviated version, containing approximately 52% of the total text.

Percutaneous Lead Body Extrusion Design

BACKGROUND

This idea relates to cable extrusions that allow for twists incorporated within extruded body wall. These twists reduce mechanical coupling between a lead body and tip. More particularly, this concept covers percutaneous leads used for neurostimulation. Percutaneous leads are leads that are inserted through a needle into the epidural space at target stimulation site.

DESCRIPTION

Neurostimulation leads are used to electrically stimulation targeted tissue for therapeutic benefits. The electrical lead comprises an electrically insulative, flexible, elongated lead body having a proximal end and a distal end, an electrical contact carried by the distal end of the lead body, an electrical terminal carried by the proximal end of the lead body, an electrical conductor axially extending within the lead body between the electrical contact and the electrical terminal, and a stiffening tube extending within the proximal end of the lead body from a point proximal to the terminal to a point distal to the terminal and proximal to the electrode. 

A percutaneous lead comprises a cylindrical body with ring electrodes, and introduced into contact with the affected spinal tissue through a Touhy-like needle, which passes through the skin, between the desired vertebrae, and into the epidural space above the dura layer. For unilateral pain, a percutaneous lead is placed on the corresponding lateral side of the spinal cord. For bilateral pain, a percutaneous lead is placed down the midline of the spinal cord...