Abstract: An ultrasound probe includes a probe body including a side surface and a bottom surface, a display unit on the side surface, first and second imaging units arranged on the bottom surface, separated from each other in a first direction, and each configured to acquire a cross-sectional image of a human body, and a controller configured to determine a position of a blood vessel using the cross-sectional image acquired by each of the first and second imaging units, determine an orientation of the blood vessel based on the determined position of the blood vessel, and control the display unit to display an indicator indicating the orientation of the blood vessel.

Abstract: An imaging apparatus includes a base portion having a space in which a part of a human body is placed, a probe body attached to the base portion and including an imaging unit that faces the space and is configured to acquire a cross-sectional image of the part of the human body when the part of the human body is placed in the space, a first pressing portion attached to the base portion and by which the part of the human body can be pressed against the imaging unit, and a controller configured to control a pressure applied to the part of the human body by the first pressing portion.

Abstract: A medical device for assisting in a puncture operation on a human body, includes an imaging unit configured to acquire a cross-sectional image of a human body, a laser unit configured to emit laser light and project a marker onto a skin surface of the human body, a controller configured to: determine a first distance from the imaging unit to a blood vessel using the cross-sectional image acquired by the imaging unit, determine a position of a puncture point on the skin surface with respect to the imaging unit based on the determined first distance, and control the laser unit to project onto the skin surface a marker indicating the puncture point at the determined position thereof.

Abstract: A treatment method is disclosed capable of reducing the burden on a patient and enhancing the effect of killing tumor cells. The method includes administering an antibody-photosensitive substance into a vein; inserting an endoscope from a mouth, a nose, or an anus and bringing the endoscope to a vicinity of a tumor after the administering of the antibody-photosensitive substance into the vein; placing an optical fiber into the tumor or in the vicinity of the tumor; irradiating at least one of the tumor, the vicinity of the tumor, or a regional lymph node with a first near-infrared ray by the optical fiber; and irradiating the antibody-photosensitive substance bound to a tumor cell membrane in the tumor cell with a second near-infrared ray after the irradiating with the first near-infrared ray, the second near-infrared ray having a shorter wavelength than that of the first near-infrared ray.

Abstract: A treatment method is disclosed capable of reducing the burden on a patient and enhancing the effect of killing tumor cells. The method includes administering an antibody-photosensitive substance into a vein; inserting an endoscope from a mouth, a nose, or an anus and bringing the endoscope to a vicinity of a tumor after the administering of the antibody-photosensitive substance into the vein; placing an optical fiber into the tumor or in the vicinity of the tumor; irradiating at least one of the tumor, the vicinity of the tumor, or a regional lymph node with a first near-infrared ray by the optical fiber; and irradiating the antibody-photosensitive substance bound to a tumor cell membrane in the tumor cell with a second near-infrared ray after the irradiating with the first near-infrared ray, the second near-infrared ray having a shorter wavelength than that of the first near-infrared ray.

Abstract: A treatment method is disclosed capable of reducing the burden on a patient and enhancing the effect of killing tumor cells. A treatment method for killing a tumor cell, the method including inserting a catheter into a main artery of an organ having the tumor cell, administering an antibody-photosensitive substance into a vein before the inserting of the catheter, inserting an optical fiber into the catheter, reducing an influence of blood in the artery on a near-infrared ray, irradiating at least one of a tumor, the vicinity of the tumor, or a regional lymph node with a first near-infrared ray by the optical fiber, and irradiating an antibody-photosensitive substance bound to a tumor cell membrane in the tumor cell with a second near-infrared ray having a shorter wavelength than that of the first near-infrared ray.

Abstract: A treatment method is disclosed capable of reducing the burden on a patient and enhancing the effect of killing tumor cells. A treatment method for killing a tumor cell, the method including inserting a catheter into a main artery of an organ having the tumor cell, administering an antibody-photosensitive substance into a vein before the inserting of the catheter, inserting an optical fiber into the catheter, reducing an influence of blood in the artery on a near-infrared ray, irradiating at least one of a tumor, the vicinity of the tumor, or a regional lymph node with a first near-infrared ray by the optical fiber, and irradiating an antibody-photosensitive substance bound to a tumor cell membrane in the tumor cell with a second near-infrared ray having a shorter wavelength than that of the first near-infrared ray.

Abstract: A thrombus aspiration catheter is disclosed which can shear a thrombus and efficiently aspirate the thrombus. When the pressure of the inside of an inner tube is made negative, an outer tube is rotated around an axis relative to the inner tube, and an inner opening portion and an outer opening portion are positioned at an open position at which the inner opening portion and the outer opening portion overlap each other, a thrombus enters the inside of the inner tube through the inner opening portion and the outer opening portion. When the outer tube is further rotated up to a closed position at which the whole outer opening portion does not overlap the inner opening portion, the thrombus is sheared by an edge portion of the inner opening portion and an edge portion of the outer opening portion and into the inside of the inner tube.