Olympus Corporation

Shoichi Matsui

Kunihide Kaji

Kenichi Nishina

Hiroshi Kodama

Tomonao Kawashima

Hironaka Miyaki

Hirotaka Eda

An ultrasound diagnostic apparatus includes: a beam former that drives an ultrasound transducer including two-dimensionally arranged vibration elements and that acquires ultrasound data of a three-dimensional space; a delay calculating circuit sets scan conditions including a drive delay amount of the beam former; a graphic circuit that generates an ultrasound slice image of a predetermined cut surface from the ultrasound data of the three-dimensional space; and a CPU that determines a focal length or a focal depth of the ultrasound according to a distance from the ultrasound transducer to the desirably set cut surface to set an amount of delay to cause the delay calculating circuit to change the scan conditions.

Ultrasound diagnostic apparatus and operation method of ultrasound diagnostic apparatus

A heat monitoring instrument of the invention includes: an insertion portion for inserting into tissue of a subject; a distal end portion that constitutes a distal end portion of the insertion portion and receives and transmits heat of the subject into which the insertion portion is inserted; and a shape-memory portion that constitutes the distal end portion and changes shape due to the heat of the subject.

Heat monitoring instrument and thermal therapy apparatus

An ablation method according to the present invention includes: a step I of observing a target region in a tissue of a subject and a conservation region that should not be ablated, the conservation region being adjacent to the ablation target region, using an observation unit; a step II of placing a thermal monitoring instrument that deforms if a temperature thereof exceeds a predetermined temperature, in a boundary between the ablation target region and the conservation region under the observation using the observation unit; a step III of heating the ablation target region using an ablation instrument while observing the ablation target region using the observation unit; and a step IV of stopping the heating at a stage where deformation of the thermal monitoring instrument is confirmed.

Growing community of inventors

Sagamihara, Japan

Shoichi Matsui