Abstract: A treatment apparatus and a treatment method capable of minimally invasively specifying a lesion extent and checking progress of treatment while performing the treatment for destroying tumor cells. The treatment apparatus that detects and destroys a tumor cell by irradiating an antibody-photosensitive substance adsorbed on a tumor cell membrane with excitation light includes: an elongated tubular shaft having optical transparency; a light irradiation unit configured to emit the excitation light of the antibody-photosensitive substance from an inside of the shaft in a side direction perpendicular to an axial direction of the shaft; and a side direction fluorescence detection unit configured to detect, from the side direction perpendicular to the axial direction of the shaft, fluorescence emitted by the excited antibody-photosensitive substance, and movable in the axial direction with respect to the shaft.

Abstract: Provided are a treatment apparatus and a treatment method capable of effectively treating cancer tumor cell (for example cancer in a range including at least a part of a cervix). A treatment apparatus is configured to irradiate an antibody-photosensitive substance bound to a tumor cell with excitation light, and includes: a main shaft including a distal portion and a proximal portion; a distal structure portion disposed on a distal side of the main shaft and formed to be larger than the main shaft in a radial direction of the main shaft; a distal shaft protruding from the distal structure portion toward the distal side; and at least one irradiation unit configured to emit the excitation light of the antibody-photosensitive substance from the distal shaft and the distal structure portion.

Abstract: A treatment apparatus and a treatment method capable of effectively treating cancer in a range including at least a part of a cervix. A treatment apparatus is configured to irradiate an antibody-photosensitive substance accumulated in a tumor cell with excitation light, and includes: a tubular device including an elongated tubular member; and an irradiation device configured to be inserted into the tubular member. The irradiation device includes a main shaft including a distal portion and a proximal portion, a disk portion disposed on a distal side of the main shaft, a distal shaft protruding from the disk portion toward the distal side, and an irradiation unit disposed on the distal shaft and configured to emit the excitation light.

Abstract: A treatment apparatus and a treatment method capable of effectively treating cancer including a cervix. The treatment apparatus includes: a main shaft including a distal portion and a proximal portion; an inflation portion disposed on a distal side of the main shaft and configured to be inflated by inflowing a fluid; a distal shaft protruding from the inflation portion toward the distal side; and at least one irradiation unit configured to emit excitation light of an antibody-photosensitive substance from the distal shaft and the inflation portion.

Abstract: An irradiation device and a treatment method capable of effectively irradiating an antibody-photosensitive substance bound to a cell membrane of cervical cancer with near-infrared light.

Abstract: Provided is a treatment method that reduces risk factors contributing to anastomotic leakage by using a medical device. The treatment method includes placing a medical device including a sheet-like main body portion for promoting adhesion between biological tissues between one joint target site and another joint target site of a biological organ to be joined, and joining the one joint target site and the other joint target site to each other in a state where at least a portion of the main body portion is interposed between the one joint target site and the other joint target site.

Abstract: An adhesion promotion device configured to reduce risk factors of an anastomotic leakage after a surgical operation is performed includes a main body portion and a reinforcement portion. The main body portion is formed of a biodegradable sheet that promotes adhesion of biological tissues and includes a plurality of through-holes. The reinforcement portion is disposed at a portion of the main body portion and reinforces the main body portion.

Abstract: 4 There are provided an adhesion promotion device and a medical device which are capable of effectively reducing risk factors of an anastomotic leakage. The adhesion promotion device has a main body portion formed of a biodegradable sheet having a plurality of through-holes and promoting adhesion of biological tissues, and an assistance unit provided in the main body portion and assisting the main body portion to hold a biological organ serving as an object to be joined.

Abstract: To reduce the risk of a ruptured suture after a surgery or the like, a medical apparatus includes a biodegradable sheet in which a plurality of through-holes are formed, a value of a ratio (D/P) of a hole diameter D to a pitch P of the through-hole is in a range of 0.25 or more and less than 40. Such a medical apparatus is useful as an adhesion promoting device for promoting adhesion of biological tissue.

Abstract: Provided is a treatment method that reduces risk factors contributing to anastomotic leakage by using a medical device. The treatment method includes placing a medical device including a sheet-like main body portion for promoting adhesion between biological tissues between one joint target site and another joint target site of a biological organ to be joined, and joining the one joint target site and the other joint target site to each other in a state where at least a portion of the main body portion is interposed between the one joint target site and the other joint target site.