Abstract: A hollow microtube structure capable of being used as a minimally invasive electrode, a production method thereof, and a biopsy device using the hollow microtube structure. The hollow microtube structure includes a semiconductor substrate and at least one hollow tube formed on a surface of the semiconductor substrate. The hollow tube includes a metal coating film layer on the inner surface and an electrically insulating coating film layer on the outer surface. The semiconductor substrate includes a through hole communicated with an interior of a hollow tube at a location where the hollow tube is formed. The production method includes an etching, a sacrificial layer forming, a metal coating film layer forming, an electrically insulating coating film layer forming, a tip portion removing, and a piercing.
Type:
Application
Filed:
March 19, 2010
Publication date:
January 19, 2012
Applicant:
NAT. UNIV. CORP. TOYOHASHI UNIV. OF TECHNOLOGY