Abstract: Provided is a medical device capable of easily changing a position of the device inside a biological lumen and effectively removing a cut object. The medical device for removing the object in the biological lumen has a drive shaft, a cutting portion, a first housing that accommodates the drive shaft to be rotatable, a second housing that is rotatable with respect to the first housing, and a support portion that supports the first housing and the second housing. The second housing and the support portion relatively move along an axis to restrict relative rotation of the first housing and the second housing. The support portion supports the second housing to be rotatable around the axis.

Abstract: The present disclosure improves handling of information related to a medical care without changing a flow of daily work already established by a health care worker. A medical care subject information management system is communicably connected to a reading device configured to read, from a measurement device configured to measure biological information on a medical care subject, the biological information measured by the measurement device, or includes such a reading device. The medical care subject information management system includes a control unit configured to cause a display unit to display an input screen for inputting information related to progress of a medical care of the medical care subject immediately or in response to a predetermined operation performed when the reading device reads the biological information on the medical care subject.

Abstract: An image processing device includes: a control unit configured to acquire a cross-sectional image obtained using a sensor configured to move in a lumen of a biological tissue for each position in a movement direction of the sensor, analyze the acquired cross-sectional image to calculate a centroid position of a cross section of the lumen in the cross-sectional image, and execute smoothing on a calculation result obtained for a plurality of positions in the movement direction of the sensor, and evaluate a difference between the calculated centroid position and a centroid position obtained as a result of the smoothing for each position in the movement direction of the sensor, thereby deriving a pulsation score representing expansion and contraction of the lumen in the acquired cross-sectional image by a numerical value.

Abstract: A vascular closure device assembly, comprises a sheath comprising: a sheath main body defining a channel therethrough, a sheath engagement portion, and a sheath mounting portion located at a proximal end of the sheath main body. The assembly comprises a housing within which the sheath mounting portion is secured such that the sheath is rotatable relative to the housing, and such that the housing inhibits axial displacement of the sheath relative to the housing. The assembly also includes a dilator comprising a dilator main body, and a dilator engagement portion extending from the dilator main body towards the sheath. The dilator engagement portion is configured to engage the sheath engagement portion such that axial displacement of the dilator relative to the sheath causes the sheath to rotate relative to the housing, and wherein the housing is configured to inhibit axial displacement of the sheath during rotation.

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: A catheter assembly includes: a hollow catheter; a catheter hub to which the catheter is fixed; an inner needle including a needle tip, the inner needle being detachably disposed inside of the catheter; a needle hub to which the inner needle is fixed; a catheter operation member configured to move the catheter relative to the inner needle; and a support member disposed at the needle hub and configured to rotate about a rotation axis orthogonal to a longitudinal direction of the assembly. The support member includes a support main body portion that projects in a direction orthogonal to the rotation axis of the support member and that is movable relative to the needle hub between (i) a first position at which the support main body portion contacts and supports the catheter, and (ii) a second position at which the support main body portion does not contact the catheter.

Abstract: Provided is a blood component collection cassette capable of measuring a circuit internal pressure using a simple and economical configuration. A blood component collection cassette includes an inflow line for sending blood or a blood component collected from a donor to a centrifugal separator, a return line for returning a predetermined blood component to the donor, and a line forming member forming one of the inflow line and the return line and having a load detection soft portion made of a soft material.

Abstract: The present invention is to provide a means capable of properly balancing water and sodium in peritoneal dialysis treatment, without causing hyponatremia, while avoiding adversely affecting residual renal function. A peritoneal dialysate containing 1.5 to 1.8 w/v % of glucose and 120 to 130 mEq/L of sodium, and being for independent use once or twice a day, wherein the peritoneal dialysate is used in combination with another peritoneal dialysate that contains 1.35 to 2.5 w/v % of glucose and 132 to 135 mEq/L of sodium, in peritoneal dialysis that involves injection of an amount of 1.5 to 2.0 L per one time in an abdominal cavity of a subject, storage and drainage three to five times a day.

Abstract: Embodiments are described for treating a fluid, e.g., a biological fluid. The embodiments may include systems, apparatuses, and methods. Embodiments may provide for a flow cell, with a plurality of manipulation elements, through which a fluid is flowed. The fluid may be treated (e.g., exposed to energy) as it moves through the flow cell. In embodiments, the flow cell may be used to inactivate pathogens in the fluid.

Abstract: A syringe assembly includes a plate-shaped seal member that seals a distal opening of a distal nozzle portion of a syringe; and a tubular cover member. The cover member has a base portion and a mounting portion. The mounting portion has two claw portions, two first column portions arranged on both sides of one of the two claw portions, and two second column portions arranged on both sides of the other of the two claw portions. An outer peripheral portion of the mounting portion has two outer peripheral notch portions. An inner peripheral portion of the mounting portion has two inner peripheral recessed portions.

Abstract: A hemostatic device is disclosed, which includes a tube fixing portion that is provided to a fixing member which fixes an inflatable member. The tube fixing portion includes a first member, a second member that is located closer to the inflatable member than is the first member, a slit portion, and a tube holding portion. A part of the first member is further away from the inflatable member than is the second member in a direction perpendicular to a virtual plane defined by the slit portion. A first distal-end surface includes a first region not facing a second distal-end surface, and a second region facing the second distal-end surface. A first curved portion has a first curved surface curved toward the second member and facing the second distal-end surface.

Abstract: A medical system recommends a posture of a subject during a medical procedure. The medical system includes a processor and an output device. The processor determines suitable postures of the subject during the medical procedure based on at least one of subject information, including information on a posture of the subject obtained upon a predetermined movement by the subject and information on the procedure. The output device presents one or more of the suitable postures determined by the processor as recommended postures.

Abstract: Described are embodiments that include methods and devices for separating components from multi-component fluids. Embodiments may involve use of separation vessels and movement of components into and out of separation vessels through ports. Embodiments may involve the separation of plasma from whole blood. Also described are embodiments that include methods and devices for positioning portions, e.g., loops, of disposables in medical devices. Embodiments may involve use of surfaces for automatically guiding loops to position them into a predetermined position.

Abstract: A medical device is disclosed that can help prevent a guide wire from coming into contact with a rotating body in the middle of performing a treatment and achieves improvement in the efficiency of cutting an object by the rotating body. The medical device has a sheath that is insertable into a body lumen, a rotatable hollow rotating body that is disposed to protrude toward a distal side of the sheath, and guide wire lumens into which a guide wire w is insertable in parallel with the sheath. A distal surface of the rotating body has corrugated portions.

Abstract: In a blood transfusion system (a blood transfusion kit, a blood transfusion kit for emergency blood transfusion, or a method of using a blood transfusion kit), a flow path through which blood flows is formed using a tube having a channel therein. The flow path includes: a first path that connects an upstream path and a downstream path and has a leukocyte removal filter removing leukocytes at an intermediate position of the channel and a second path that connects the upstream path and the downstream path and bypasses the leukocyte removal filter.

Abstract: A method for functionalizing a hollow-fiber membrane for cell expansion of targeted cells (e.g., natural killer cells) includes contacting a biotinylating molecule to a surface of the hollow-fiber membrane including an extracellular matrix component, the biotinylating molecule binding to the extracellular matrix component and having an affinity for the targeted cells. The biotinylated molecule may be selected from the group consisting of: cytokine, epitope, ligand, monoclonal antibody, stains, aptamer, and combinations thereof. The extracellular matrix component may be selected from the group consisting of: fibronectin, vitronectin, fibrinogen, collagen, laminin, and combinations thereof.

Abstract: A hemostatic device that includes: a pressing member configured to compress the puncture site; and a first band, a second band, and a third band configured to be connected to the pressing member. The pressing member includes a pressing portion configured to compress the puncture site and a support member configured to fix the pressing portion. The support member has a first region in which the pressing portion is located, and a second region which is located outside the first region and to which the first band, the second band, and the third band are connectable. The first band and the second band have a center point in the first region when the first band and the second band slide in a state of being connected to the second region. The support member includes a projection protruding toward the pressing portion on a third band side of the first region.

Abstract: A medical device is disclosed for collecting substances inside a body lumen. The medical device includes an elongated shaft portion; a filter portion that has multiple gaps, that is formed in a net shape, that is deformable to be in an expanded state where the filter portion has a basket shape so as to form a concave portion, and that is deformable from the expanded state to be in a contracted state where an opening end portion of the concave portion is contracted; and a support portion that is formed to include a gap larger than gaps of the filter portion and that includes an interlock portion interlocked with the opening end portion of the filter portion and a support side connection portion connected to the shaft portion.

Abstract: This document describes medical systems that use artificial intelligence to facilitate autonomous or semi-autonomous medical procedures. For example, this document describes heart/lung machine systems that are used in conjunction with artificial intelligence systems to facilitate autonomous or semi-autonomous open-heart surgery operations.

Abstract: A puncture needle according to the present disclosure includes a puncture portion having a blade surface at a distal-end surface; and a retained portion connected to a proximal-end puncture-portion side and configured to be retained by a hub. The puncture portion includes a slit extending to the distal-end surface. The retained portion includes: a tubular portion having a substantially constant outer diameter larger than a maximum outer diameter of the puncture portion, and a tapered portion located between the puncture portion and the tubular portion, an outer diameter of the tapered portion gradually decreasing from a tubular-portion side to a puncture-portion side, wherein in a lateral view with the slit facing upward, lower contour lines of the puncture portion, the tubular portion, and the tapered portion are collinear.