Browse Prior Art Database

Tactile Insertion Stylet

IP.com Disclosure Number: IPCOM000239457D
Publication Date: 2014-Nov-09
Document File: 2 page(s) / 72K

Publishing Venue

The IP.com Prior Art Database

Abstract

Disclosed is a technique to prevent electrode tip fold-over during electrode insertion. The technique uses both a sheath and a tactile stylet insertion, resulting in a readily tunable solution for both insertion trauma and placement while preventing tip fold-over.

This text was extracted from a Microsoft Word document.
At least one non-text object (such as an image or picture) has been suppressed.
This is the abbreviated version, containing approximately 67% of the total text.

Title 

Tactile Insertion Stylet

Abstract

Disclosed is a technique to prevent electrode tip fold-over during electrode insertion.  The technique uses both a sheath and a tactile stylet insertion, resulting in a readily tunable solution for both insertion trauma and placement while preventing tip fold-over.

Problem Addressed 

During insertion, when the electrode tip is designed to match the optimal radius of curvature to achieve a close or ideal modiolar position, the electrode tip folds over.  This prevents the insertion of the electrode using a sheath based insertion technique.  This is generally overcome by relaxing the shape of the electrode tip, resulting in poor or inconsistent placement.

Currently, electrodes only use one or the other as an insertion technique, in an effort to provide a weak stylet to avoid trauma.  This approach, along with the Advance Off-Stylet™ (AOS) technique, is prone to damage.  Others use a Nitinol stylet to hold the electrode straight during insertion, which is also considered traumatic.

Novelty Statement

The solution is to use both a sheath and a tactile stylet insertion technique.  This provides a readily tunable solution for both insertion trauma and placement.  The stylet is then only used to prevent a tip fold-over and to maintain mid-scalar insertion dynamics during the off sheath insertion.  When the sheath is removed, the stylet can be withdrawn, resulting in the ideal placement.

Description (Components, Process)

 

  • Figure 1: T...