Title:
DRILL DEVICE AND METHOD FOR FORMING MICROCONDUITS
Document Type and Number:
WIPO Patent Application WO2004086938
Kind Code:
B1
Abstract:
The present invention relates to methods and devices for formation of microconduits in tissue, particularly using an impedance sensing drill (10) to form microconduits. One embodiment of the invention is an impedance sensing drill comprising a drilling assembly (15), a control module (20), mechanically connected to the drilling assembly (15) for controlling the depth of drilling by the drilling assembly (15); and a sensor (25), electrically connected to the drilling assembly (15) and control module (20) for detecting a change in an electrical impedance of a material being drilled. Another embodiment is a method of forming a microconduit in a material, which comprises the steps of drilling into the material, monitoring an electrical impedance of the material, and stopping the drilling into the material when a change in the impedance is detected, thereby forming microconduit.
Inventors:
HERNDON TERRY O (US)
Application Number:
PCT/US2004/008617
Publication Date:
September 15, 2005
Filing Date:
March 22, 2004
Export Citation:
Assignee:
HERNDON TERRY O (US)
International Classes:
A61B5/05; A61B17/20; A61B5/053; A61B17/00; A61B; (IPC1-7): A61B5/05
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