Abstract: An organ retraction device includes a surgical instrument and an expandable body operable for expansion by connection of the surgical instrument thereto. The expandable body includes a first expandable section configured to be expandable to a predetermined size and shape in a first stage to move an organ in an abdominal cavity, and a second expandable section configured to be expandable to a predetermined size and shape in a second stage to fix the organ.

Abstract: A medical device having a function of promoting fusion between living body organs, which includes a sheet-like main body portion configured to promote fusion of anastomosis portions, a cylindrical portion that is disposed on a center portion side in a plane direction of the main body portion with respect to an outer peripheral portion in the plane direction of the main body portion, protrudes in a first direction intersecting the plane direction of the main body portion, and has a lumen, and a connection portion that connects the main body portion and the cylindrical portion, and the medical device 100 is configured so that a relationship among hardness of the cylindrical portion, hardness of the connection portion, and hardness of the main body portion satisfies the following expression (1): hardness of cylindrical portion >hardness of connection portion >hardness of main body portion (1).

Abstract: A medical member having flexibility and strength suitable for application to anastomotic portions, and having effectively improved breaking processability. The medical member includes a mesh-like main body that promotes adhesion of the anastomotic portions, in which the main body includes a breakable portion having a relationship between a breaking strength and a compression elongation percentage, represented by the following formulas (1) to (4): Y ? 244734 ? ( X - Z ) - 1.665 ( 1 ) 0 ? Z < 408.216 ( 2 ) X - Z > 0 ( 3 ) 39 ? X .

Abstract: An organ retraction device includes a surgical instrument and an expandable body operable for expansion by connection of the surgical instrument thereto. The expandable body includes a first expandable section configured to be expandable to a predetermined size and shape in a first stage to move an organ in an abdominal cavity, and a second expandable section configured to be expandable to a predetermined size and shape in a second stage to fix the organ.

Abstract: An adhesion promotion device is disclosed, which is capable of reducing risk factors of an anastomotic leakage after surgery. The adhesion promotion device includes a sheet-shaped first region disposed between one joint target site and the other joint target site of biological organs to promote adhesion of a biological tissue, a second region provided inward of the first region and separated from the first region in a direction intersecting with a surface direction of the first region, and an interlock portion that interlocks the first region and the second region with each other.