Abstract: Disclosed is a method for producing a medical instrument having a lubricating layer (a coating layer) exhibiting excellent durability (particularly, sliding durability). The method for producing a medical instrument is a method for producing a medical instrument having a base layer, and a lubricating layer that is carried on at least a part of the base layer. The method for producing a medical instrument also includes applying, to the base layer, a solution containing a block copolymer having a structural unit (A) derived from a reactive monomer having an epoxy group and a structural unit (B) derived from a hydrophilic monomer, an alkylammonium salt having 8 to 24 carbon atoms, and a solvent; and washing off the solution applied to the base layer.

Abstract: A medical device package includes: a medical device container including a nest which holds a plurality of medical devices (syringes) to be filled with medicine to be aligned in a predetermined direction, a medical device container main body which accommodates the nest, and a sheet-shaped first sealing member which seals the medical device container main body; and a storage container for packing with an outer peripheral surface of the medical device container maintained in a sterile state. The storage container is formed of a storage container main body accommodating the medical device container and having a shape-retaining property, and seals a transfer opening at an upper end of the storage container main body with a sheet-shaped second sealing member having an antibacterial property and air permeability.

Abstract: A medical infusion pump includes: a reader configured to read identification information stored in an RF tag by wireless communication; and a control unit configured to set information about administration of a drug based on the identification information read from the RF tag. In a case in which the reader reads two different pieces of the identification information, the control unit selects only one piece of the identification information out of the two different pieces of the identification information and sets the information about administration based on said one piece of the identification information.

Abstract: A technique is disclosed by which a lubrication retaining property (sliding durability) and flexibility can be exhibited even under severe situations. A medical device including a base layer and a surface lubricating layer formed on at least a part of the base layer, in which the surface lubricating layer contains a polymer and a polyurethane, the polymer having a carboxy group, a salt of the carboxy group, or an ester of the carboxy group, and wherein the polyurethane has an elongation percentage of 700% or more and a Young's modulus of 5.0 N/mm2 or more.

Abstract: A medical device is disposed that is able to prevent short-circuit of a contact portion between an electrode portion and a conductive wire with another contact portion that is electrically independent. A medical device includes an expansion body that is configured to expand and contract in a radial direction, an elongated shaft portion including a proximal end fixing portion to which a proximal end of the expansion body is fixed, a plurality of electrode assemblies including a plurality of electrode portions disposed along the expansion body, and a conductive wire portion disposed in the shaft portion and connected to the electrode assembly with a contact portion, in which at least two or more electrode assemblies are electrically independent, and two or more of the contact portions respectively connected to the two or more electrode assemblies are disposed at different positions in an axial direction in the shaft portion.

Abstract: A catheter assembly is disclosed, which includes a catheter; a catheter hub fixed to a base end portion of the catheter; an inner needle having a needlepoint, inserted into the catheter; a needle hub coupled to the inner needle; a needle support portion configured to support the inner needle through the catheter on a leading end side beyond the catheter hub, the needle support portion having a pair of support arms openable and closeable in a different direction to an axis of the inner needle; a restraining portion capable of restraining the pair of support arms in a closed state and releasing a restraint of the pair of support arms; and wherein the restraining portion is movable with respect to the pair of support arms by a movement of the catheter hub relative to the inner needle, which releases the restraint with respect to the pair of support arms.

Abstract: An expansion body, an elongated shaft portion to which the proximal end of the expansion body is fixed, a plurality of energy transfer elements disposed along the expansion body, and a pulling shaft are included, the pulling shaft is configured to apply, to the expansion body via a force receiving portion, a compressive force that makes compression along an axial center of the shaft portion such that a plurality of energy transfer element arrangement portions and a plurality of facing portions approach each other by sliding in a direction of the proximal end with respect to the shaft portion, and the expansion body includes a buffer portion that is disposed in a first expansion portion and is configured to relax the compressive force by deforming in a direction different from the direction from the force receiving portion toward a distal-side top portion along a distal-side expansion portion.

Abstract: A diagnosis assistance device includes a control unit that generates line data indicating an intensity value of a reflected wave from an object, which is present in a transmission direction of ultrasound, for each combination of a movement position of an ultrasound transducer that radially transmits the ultrasound while being moved inside a biological tissue and the transmission direction of the ultrasound with reference to an observation result of a cross section of the biological tissue by the ultrasound transducer and generates a detection image which includes pixels corresponding to the generated line data and in which pixels corresponding to the line data at the same movement position are arranged in one direction. Pixels corresponding to the line data in the same transmission direction are arranged in a direction perpendicular to the one direction, and each pixel value is set according to an abnormality degree of the generated line data.

Abstract: A medical device and a treatment method, in which energy is accurately applied to a target site by suppressing a positional displacement between an expansion body and a biological tissue. The medical device includes an elongated shaft portion and an expansion body disposed in a distal portion of the shaft portion and configured to expand and contract in a radial direction. The expansion body includes a holding portion having a proximal side holding portion and a distal side holding portion configured to hold the biological tissue, and a movable portion configured to open and close the holding portion.

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: 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: 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: A ventricular pressure waveform estimation device includes a calculation unit. The calculation unit estimates a plurality of coefficients of a model equation that indicates a left ventricular pressure waveform or a right ventricular pressure waveform by using values of one or more parameters related to a heartbeat or an arterial pressure to estimate at least a part of the left ventricular pressure waveform or the right ventricular pressure waveform.

Abstract: A medical device includes: an elongated shaft portion that includes a drive shaft which is rotatable and a fluid lumen; and a cutter that cuts an object, the cutter being fixed to a distal end of the drive shaft and including a lumen communicating with the fluid lumen and a distal end opening communicating with the lumen, wherein the cutter has at least one guide portion that is a groove and/or a slit on an outer peripheral surface, and the guide portion extends in a direction opposite to a rotation direction in a distal direction.

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: 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.