Insertion tool for placement of a flexible silicone mold or posi

Details Insertion tool for placement of a flexible silicone mold or posi Insertion tool for placement of a flexible silicone mold or posi

1999-05-18

2000-11-21

Jastrzab, Jeffrey R.

Surgery

Instruments

Electrode guide means

607137, A61B 1736

Patent

active

06149657&

ABSTRACT:
An insertion tool is used to insert an electrode array or positioner into a human cochlea. The insertion tool includes a main body portion (151), a pushing tube (152) slidably engaged within the main body portion so that the pushing tube may assume a retracted or extended position, and a stylet (154) slidably inserted into the pushing tube and having a retracted position and an extended position. In use, a positioner (or other flexible member), having a longitudinal hole or channel passing therethrough, is threaded onto the distal end of the stylet at a time when the stylet is in its extended position and the pushing tube is in its retracted position. Then, the pushing tube is pushed or slid to its extended position while maintaining the stylet in its extended position, thereby pushing the positioner (or other flexible member) off of the stylet and into the cochlea.

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