Test apparatus and method of observing biopsy specimen sampled by using test apparatus

摘要

A test apparatus includes a biopsy needle for sampling a biopsy specimen. The biopsy needle includes a specimen holder that holds the sampled biopsy specimen, and an optical window disposed in the specimen holder and configured to allow optical detection. A biopsy specimen held by the specimen holder of the test apparatus is measured by using a third-order nonlinear Raman microscope.