Patent ID: 8167808
Filing Date: 2012-05-01
Classification: A61B

Abstract:
1. A treatment instrument system comprising: an endoscope having a treatment instrument channel; an ultrasound probe inserted through the treatment instrument channel of the endoscope; an ultrasound observing apparatus having a blood flow display function and a distance measuring function; a treatment instrument having, at a distal end portion, a first ultrasound scattering portion for scattering ultrasound; and an over tube having an endoscope insertion path through which the endoscope can be inserted and a treatment instrument insertion path through which the treatment instrument can be inserted, and having, at a distal end portion, a second ultrasound scattering portion configured to enable identification of a moving direction of the first ultrasound scattering portion and identification of a relative position of the first ultrasound scattering portion with respect to the second ultrasound scattering portion on an ultrasound tomogram.