Abstract: A method for producing a cell culture containing desired cells is provided. The desired cells are induced to be differentiated from pluripotent stem cells. The method includes seeding a cell population by dispersing embryoid bodies obtained by inducing differentiation from the pluripotent stem cells to the desired cells. The embryoid bodies are dispersed at a density reaching confluence or higher.

Abstract: A medical connector includes: a first connection member having a first connection port, and a second connection port that fluidically communicates with the first connection port; a second connection member; and a ratchet mechanism portion that couples the first connection member and the second connection member.

Abstract: An image processing device includes a drive unit connected with an ultrasound element or an image sensor element, and an image processing unit that sequentially generates two-dimensional images of an organ, a blood vessel, or a medical instrument, based on information which is acquired by the ultrasound element or the image sensor element, and that generates a three-dimensional image based on the two-dimensional image. The image processing unit includes a storage unit that stores position correspondence information and/or image correspondence information, and a control unit that determines a position inside the three-dimensional image corresponding to a current position of the ultrasound element or the image sensor element, based on the position correspondence information or the image correspondence information, and that generates display information in real time, in which the determined position inside the three-dimensional image is identified and displayed inside the three-dimensional image.

Abstract: A control device configured to control a pressurization and decompression operation of a pump configured to inflate and deflate a balloon by pressurizing and decompressing the balloon attached to a distal portion of a catheter through the catheter inserted into a luminal organ of a patient includes a control unit configured to acquire image data obtained by imaging the luminal organ at least while the pump is caused to perform a pressurization operation, determine whether air bubbles are mixed in an expansion medium injected into the balloon in the pressurization operation with reference to the acquired image data, and when it is determined that the air bubbles are mixed, cause the pump to perform a decompression operation before a preset decompression timing.

Abstract: An indeflation system includes a control unit configured to control an operation of a pump configured to pressurize or depressurize an inside of a catheter at a distal portion of which a balloon is provided, in which the control unit acquires a medical image of the balloon provided at the distal portion of the catheter inserted into a lumen, the balloon pressurized by the pump, detects presence or absence of an abnormality of the balloon on the basis of the medical image of the pressurized balloon, and controls the pump so as to depressurize the balloon in a case where the abnormality of the balloon is detected.

Abstract: The present application discloses various methods of constructing hemostasis devices with folded balloon assemblies.

Abstract: An oxygen measurement device constituting an oxygen measurement system includes a urethral catheter and an oxygen sensor main body. The urethral catheter has a shaft in which a urethral catheter lumen that enables circulation of urine flowed in via a urethral catheter port from inside a bladder is formed; and has a hub in which a urine lumen that is provided at a proximal end of the shaft and communicates with the urethral catheter lumen is formed. The oxygen sensor main body is provided on the hub in a manner capable of being brought into contact with urine circulating in the urine lumen, and detects oxygen in the urine.

Abstract: A medical device is disclosed that can help prevent an object existing in a body lumen from clogging a lumen of an elongated member. The medical device including an elongated member having a lumen extending in an axial direction; an insertion member inserted in the lumen of the elongated member on a distal side of the lumen; and a breaking member fixed on an inner surface of the elongated member such that a gap is formed between the insertion member and the breaking member in the lumen of the elongated member on the distal side, and wherein the breaking member exerts a shearing force or a stretching force to the object by rotating relative to the insertion member while the object is between the insertion member and the breaking member.

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 elongated body including a shaft portion comprising a linear body and a proximal portion; a distal member disposed in a distal side of the shaft portion and having a distal end and a proximal end, the distal member having a first region having an inner layer and an outer layer which are made of a resin material, and a second region having the inner layer and the outer layer, and a tubular member made of a metallic material and disposed between the inner layer and the outer layer in the second region, the proximal end opening portion comprising an inclined region having a proximally-decreasing dimension; and a reinforcement layer comprising a metallic material arranged between the inner layer and the outer layer from the first region to the second region of the distal member.

Abstract: A medical device is disclosed for grinding substance inside a body lumen. The medical device includes a rotatable tubular drive shaft; a treatment member connected to the drive shaft so that rotation of the drive shaft results in rotation of the treatment member; an outer sheath configured to house the drive shaft; a handle located at a proximal portion of the drive shaft and at a proximal portion of the outer sheath; a guide wire lumen tube disposed within the tubular drive shaft and the treatment member, the guide wire lumen tube having a guide wire lumen; a distal end of the guide wire lumen tube located at a distal end of the treatment member or distal to the distal end of the treatment member; and a proximal portion of the guide wire lumen tube configured to penetrate a wall of the handle.

Abstract: A medical device includes: a substrate layer; an adhesive layer on at least a part of the substrate layer and containing a hydrophilic copolymer (1) containing a structural unit derived from a polymerizable monomer (A) having a sulfobetaine structure, a structural unit derived from a polymerizable monomer (B) having at least one group selected from the group consisting of a sulfonic acid group (—SO3H), a sulfuric acid group (—OSO3H), a sulfurous acid group (—OSO2H), and salt groups thereof, and a structural unit derived from a polymerizable monomer (C) having a photoreactive group; and a surface lubricious layer formed on at least a part of the adhesive layer and containing a hyaluronic acid or a salt thereof and a hydrophilic copolymer (2).

Abstract: A medical device is disclosed, which is capable of preventing a maintenance treatment element imparting energy to biological tissue from being displaced from a treatment target site and a treatment method performed on a heart failure patient. A medical device is disclosed, which includes a shaft portion, an expandable and contractible expansion body provided on a distal side of the shaft portion, and a maintenance treatment element disposed in the expansion body and imparting energy to biological tissue. The expansion body includes a concave portion recessed in a direction intersecting with an axial direction of the shaft portion. The maintenance treatment element is disposed in the concave portion.

Abstract: A self-expandable stent has sufficient radial force, has good bending properties, and recovers the shape for the diameter thereof to return from a diameter in a contracted state to a diameter before contraction around a body temperature (37° C.). The self-expandable stent includes a crosslinked polymer containing a constitutional unit (A) obtained from a monomer that constitutes a rigid biodegradable polymer when homopolymerized and a constitutional unit (B) obtained from a crosslinking agent, in which a content of the constitutional unit (B) is 15% by weight to 35% by weight with respect to a content of the constitutional unit (A).

Abstract: A method for inserting a catheter assembly into a vessel using a storage case in which an outer pipe body and an inner pipe body which accommodate a guiding catheter and an inner catheter are connected to each other includes: pulling out the inner catheter from the inner pipe body, inserting the inner catheter into a proximal opening portion of the guiding catheter, causing a locking rotation portion of the inner catheter to rotate and be connected to a locking projection portion of the guiding catheter, assembling the guiding catheter and the pulled-out inner catheter, pulling-out, from the outer pipe body, the guiding catheter which is in a state where the inner catheter is assembled, taking out, from the storage case, a catheter assembly assembled by the guiding catheter and the pulled-out inner catheter, and inserting the catheter assembly into a vessel.

Abstract: An image processing device configured to cause a display to display, based on tomographic data acquired by a sensor moving in a lumen of a biological tissue, an image representing the biological tissue and display a first element on a screen same as the image, the first element representing a position of the sensor and being displaced as the sensor moves, the image processing device including a control unit configured to cause the display to display, upon receiving a user operation of requesting marking of the position of the sensor, a second element together with the first element, the second element being fixed at a position same as a position of the first element at time of the user operation.

Abstract: A catheter holder capable of stably holding a catheter on a body surface of a patient by facilitating catheter routing when the catheter is mounted on the body surface includes first and second components. The first component has a base portion configured to adhere to the patient's body surface and a receiving portion configured to receive a portion of a catheter disposed inside the patient's body and extending to outside of the body. The second component has a holding portion configured to hold the catheter and/or a connector connected to the catheter, with the second component being rotatably connected to the first component. The first or second component includes a catheter guide portion configured to bend the catheter, which extends from the receiving portion, toward the holding portion, and the catheter guide portion is formed with a crush prevention portion configured to prevent the catheter from being crushed.