Abstract: A method for manufacturing a catheter includes a process of supplying a resin material in a melted state to the periphery of a core wire (90) and molding a hollow tube (82) having the core wire (90) inserted thereinto; a process of arranging the hollow tube (82) having the core wire (90) inserted thereinto, on an outer peripheral side of a main lumen forming region of a tubular body part (10) made of resin; a process of extracting the core wire (90) from the inside of the hollow tube (82) to form a sublumen after the core wire (90) inside the hollow tube (82) is elongated and reduced in diameter to peel off the hollow tube (82) and the core wire (90), and a process of inserting an operating wire into the hollow tube (82).

Abstract: Provided are a culture vessel with which an embryonic body can be formed efficiently from human embryonic stem cells, and a method for culturing human embryonic stem cells using the vessel. There is provided a vessel for culturing human embryonic stem cells, the culture vessel having two or more wells (1), wherein each of the wells (1) has a tubular body (2) and a funnel-shaped bottom (3) provided at one end of the body (2), the bottom (3) being a concave curved surface at the center (4) of the bottom (3) and the bottom (3) having an opening angle (?) in range of 60 to 100°. There is provided a method for culturing human embryonic stem cells by using said vessel for culturing human embryonic stem cells.

Abstract: A catheter of the invention includes an elongated flexible tubular main body; a plurality of manipulation wires inserted through the tubular main body and having tips connected to a distal part of the tubular main body; a manipulation-part main body provided at a base end of the tubular main body; and a bending manipulation part. The bending manipulation part has an engagement part engaging with base ends of the manipulation wires, and individually applies pulling force to the plurality of manipulation wires through pulling operations so as to bend the distal part of the tubular main body. The bending manipulation part is provided so as to be movable with respect to the manipulation-part main body. The path lengths of the plurality of manipulation wires from the tips thereof to the engagement part are simultaneously increased or decreased when the bending manipulation part and the manipulation-part main body move relative to each other.

Abstract: A catheter of the invention includes an elongated flexible tubular main body; a plurality of manipulation wires inserted through the tubular main body and having tips connected to a distal part of the tubular main body; a manipulation-part main body provided at a base end of the tubular main body; and a bending manipulation part. The bending manipulation part has an engagement part engaging with base ends of the manipulation wires, and individually applies pulling force to the plurality of manipulation wires through pulling operations so as to bend the distal part of the tubular main body. The bending manipulation part is provided so as to be movable with respect to the manipulation-part main body. The path lengths of the plurality of manipulation wires from the tips thereof to the engagement part are simultaneously increased or decreased when the bending manipulation part and the manipulation-part main body move relative to each other.

Abstract: A method for manufacturing a catheter includes a process of supplying a resin material in a melted state to the periphery of a core wire (90) and molding a hollow tube (82) having the core wire (90) inserted thereinto; a process of arranging the hollow tube (82) having the core wire (90) inserted thereinto, on an outer peripheral side of a main lumen forming region of a tubular body part (10) made of resin; a process of extracting the core wire (90) from the inside of the hollow tube (82) to form a sublumen after the core wire (90) inside the hollow tube (82) is elongated and reduced in diameter to peel off the hollow tube (82) and the core wire (90), and a process of inserting an operating wire into the hollow tube (82).

Abstract: Provided are a culture vessel with which an embryonic body can be formed efficiently from human embryonic stem cells, and a method for culturing human embryonic stem cells using the vessel. There is provided a vessel for culturing human embryonic stem cells, the culture vessel having two or more wells (1), wherein each of the wells (1) has a tubular body (2) and a funnel-shaped bottom (3) provided at one end of the body (2), the bottom (3) being a concave curved surface at the center (4) of the bottom (3) and the bottom (3) having an opening angle (?) in range of 60 to 100°. There is provided a method for culturing human embryonic stem cells by using said vessel for culturing human embryonic stem cells.

Abstract: Provided is a medical instrument which can reliably protect a sub-lumen and a method of manufacturing the medical instrument. In such a medical instrument, a catheter includes a resin tubular main body (sheath), in which a main lumen and a sub-lumen which is disposed on an outer peripheral side of the main lumen and extends along a longitudinal direction of the main lumen, are formed; a reinforcement layer which is disposed between the main lumen and the sub-lumen and surrounds the main lumen; and a wire which is disposed further on an outer peripheral surface side of the tubular main body than the sub-lumen and is disposed so as to surround the outer periphery of the main lumen. The wire is embedded in the tubular main body and supports the outer peripheral surface of the tubular main body.

Abstract: A main lumen (20) and sub-lumens (30) having a diameter smaller than that of the main lumen (20) are respectively formed in a sheath (16) of a catheter (10) in the longitudinal direction thereof so as to extend therethrough. An operating wire (40) is laid through each sub-lumen (30) in a slidable manner, with the end thereof fixed to the distal end section (15) of the sheath (16). The sheath (16) is configured a first resin layer (61) and a second resin layer (62) having a hardness higher than that of the first resin layer (61), stacked in the thickness-wise direction, each of which being composed of a resin material. In the sheath (16), the thickness of the second resin layer (62) increases from the distal end side towards the proximal end side.

Abstract: A catheter (10) has a main lumen (20), and sub-lumens (30) each of which having a diameter smaller than that of the main lumen (20). The plurality of sub-lumens (30) are arranged along a circumference of the main lumen (20) in a discrete manner, and each of the sub-lumens (30) has an operating wire (40), fixed to the distal end section (15) of the catheter (10), laid therethrough in a freely slidable manner. By pulling the operating wire(s) (40) respectively laid through the sub-lumens (30), the distal end section (15) of the catheter (10) may be bent towards the pulled operating wire(s) (40) laid therethrough.

Abstract: A biochemical container is provided, which can open a cover member shutting a container member and can release a tightly sealed condition, without a need for displacing the outer edge section of the cover member. In the present invention, an opening in an end of a container member 110 is openably and closably shut by a cover member 120. When an assisting-opening member 140 is pressed from the outside in such shut condition, the stress is changed to the opening direction by the changing-direction mechanism 150 to exert over the cover member 120. Consequently, the tightly sealed condition of the cover member 120 that shuts the container member 110 can be released.