Abstract: A blood purification apparatus has a blood circuit with an arterial blood circuit (1) and a venous blood circuit (2). Blood is extracorporeally circulated from a tip of the arterial blood circuit (1) to a tip of the venous blood circuit (2). A dialyzer (3) is interposed between the arterial blood circuit (1) and the venous blood circuit (2) to purify the blood. The blood purification apparatus can substitute the blood inside the blood circuit during returning of the blood after treatment. An air circulation line is connected to a predetermined portion in the blood circuit to circulate air. An air pump (18) supplies the air into the blood circuit, via the air circulation line. A control device (19) controls the air pump (18) to supply the air into the blood circuit during returning of the blood.

Abstract: Provided are a carbonaceous material with less variation in facing relation between graphenes, a process for producing the carbonaceous material, a process for producing exfoliated graphite that enables easy and massive production of graphite flaked more than ever, and the exfoliated graphite. The carbonaceous material contains an intercalation substance intercalated between graphenes of a graphene stack and is expanded graphite which shows in an XRD pattern respective peaks in 7-12° and 18-24° ranges of 2? and in which a peak in 25-27° range has a smaller height than that in 18-24° range and a half width of the peak in 7-12° range is 4 degrees or less. The process for producing the carbonaceous material includes immersing at least a portion of sheet-like graphite or sheet-like pre-expanded graphite into an aqueous electrolyte solution to subject the graphite to an electrochemical treatment.

Abstract: A hemodialysis apparatus includes a dialysis device, a detecting device, an evaluation device and a memory device. The dialysis device dialyzes and ultrafiltrates blood of a patient according to an ultrafiltration volume based on an estimated dry weight while performing hemodialysis treatment on the blood circulating extracorporeally. The detecting device obtains time series data by measuring a parameter related to concentration of the blood circulating extracorporeally at a plurality of points in time series in a process of the hemodialysis treatment by the dialysis device. The evaluation device evaluates appropriateness of the hemodialysis treatment by evaluating whether the estimated dry weight approximates to a dry weight after the hemodialysis treatment by the dialysis device. The memory device stores a plurality of time series data when the hemodialysis treatment is evaluated to be appropriate by the evaluation device.

Abstract: The present invention relates to a blood purification apparatus for extracorporeally circulating the blood of a patient so as to purify the blood for medical treatment incorporating a dialyzer and a method for priming the blood purification apparatus, wherein the present invention provides a blood purification apparatus and its priming method which can simply and easily automate the priming operation and also can surely and smoothly perform the bubble purging of the dialyzer.

Abstract: There are provided a cluster of thin sheet graphite crystals or the like which is useful as an electrode material for lithium ion batteries, hybrid capacitors and the like, and a method for efficiently producing the same at high productivity. The method is one for producing a cluster of thin sheet graphite crystals composed of aggregates in such a state that thin sheet graphite crystals extend from the inside toward the outside, comprising charging a powdery and/or particulate material of an organic compound pre-baked to an extent of containing remaining hydrogen in a graphite vessel, and subjecting the powdery and/or particulate material together with the vessel to hot isostatic pressing treatment (HIP treatment) using a compressed gas atmosphere under the predetermined conditions.

Abstract: A blood purification apparatus includes a blood circuit having arterial and venous blood circuits, a blood pump, a blood purifying device, an indicator applying device that applies a predetermined indicator to the blood flowing extracorporeally through the blood circuit, a detecting device that detects the indicator applied by the indicator applying device, an arithmetic device that calculates, based on the indicator detected by the detecting device, a recirculation rate, and a calculating device that calculates an ideal extracorporeally circulating blood flow that results in the recirculation rate being no more than a predetermined value when the recirculation rate calculated by the arithmetic device is greater than the predetermined value. The recirculation rate is a proportion of a recirculated blood flow, which is reintroduced to the patient from the venous blood circuit and directed again to the arterial blood circuit, relative to an extracorporeally circulating blood flow.

Abstract: (Problem) In conventional method for producing artificial graphite, in order to obtain a product having excellent crystallinity, it was necessary to mold a filler and a binder and then repeat impregnation, carbonization and graphitization, and since carbonization and graphitization proceeded by a solid phase reaction, a period of time of as long as 2 to 3 months was required for the production and cost was high and further, a large size structure in the shape of column and cylinder could not be produced. In addition, nanocarbon materials such as carbon nanotube, carbon nanofiber and carbon nanohorn could not be produced.

Abstract: (Problem) A porous carbon material having excellent graphite crystallinity, good carrier mobility and proper porosity, a porous carbon material having edges of carbon hexagonal planes located on outer surfaces of particle and structure, and flaky graphite being similar to graphene are produced. (Means to Solve) By subjecting a carbon material, in which a closed-pore-ratio and an amount of remaining hydrogen in the material are set to be within a proper range, to hot isostatic pressing treatment, a vapor phase growth reaction of graphite is generated in closed pores as nuclei using hydrogen and hydrocarbon generated from the carbon material, thereby producing a large amount of targeted porous carbon material at low cost. Flaky graphite being similar to graphene is produced by applying physical impact to the obtained porous carbon material or by generating a graphite intercalation compound using the porous carbon material as a host and then quickly heating the compound.

Abstract: The present invention relates to a blood purification apparatus for extracorporeally circulating the blood of a patient so as to purify the blood for medical treatment incorporating a dialyzer and a method for priming the blood purification apparatus, wherein the present invention provides a blood purification apparatus and its priming method which can simply and easily automate the priming operation and also can surely and smoothly perform the bubble purging of the dialyzer.

Abstract: A blood purification apparatus that can make the specific peak to be imparted to the blood more distinct, and therefore can detect blood recirculation reliably and precisely, is presented. It contains a blood circuit route, a blood pump, a dialyzer, dialysate introduction and discharge lines, a duplex pump, a pressurizing pump, a blood concentration means, and detection means that detect the specific peak imparted by the blood concentration means. The blood concentration means is configured to have an atmosphere release line, the tip of which is open to the atmosphere, that extends from between the pressurizing pump and the duplex pump in the dialysate discharge line, and to have an electromagnetic valve that can open or close the atmosphere release line. The electromagnetic valve opens the atmosphere release line to impart the specific peak by rapidly concentrating the blood flowing in the dialyzer for a short period of time.

Abstract: A hemodialysis apparatus includes a dialyzing device, a measuring device and a calculation device. The dialyzing device dialyzes and ultrafiltrates blood of a patient circulating extracorporeally to perform hemodialysis treatment. The measuring device measures a variation rate of a body weight of the patient and a variation rate of a predetermined blood benchmark during the hemodialysis treatment using the dialyzing device. The calculation device calculates, during the hemodialysis treatment, a parameter relating the variation rate of the body weight and the variation rate of the predetermined blood benchmark to each other, and correlating to a dry weight of the patient.

Abstract: A hemodialysis treatment apparatus includes a circulating blood volume variation rate detecting device, a vital sign detecting device and a display. The circulating blood volume variation rate detecting device detects a circulating blood volume variation rate of a patient in a time-course of a hemodialysis treatment. The vital sign detecting device detects a vital sign value of the patient in the time-course of the hemodialysis treatment. The display has a screen and displays both the circulating blood volume variation rate and the vital sign value on the screen along a time scale. The hemodialysis treatment apparatus dialyzes and ultrafiltrates extracorporeally circulating blood of the patient to perform the hemodialysis treatment.

Abstract: A hemodialysis device includes a hemodialysis device main body including an arterial blood circuit, venous blood circuit, blood pump, dialyzer, dialysate inlet and outlet lines, voltage adding device, electric potential measuring device, and monitoring device monitoring the needle when it is detached from the patient based on an electric potential measured by the electric potential measuring device. One electrode of the voltage adding device is attached between an arterial blood needle in the arterial blood circuit and the pump, and another electrode is attached to the dialysate outlet line. The hemodialysis device allows the precise detection of a needle that is detached from a patient taking a blood hemodialysis treatment by monitoring a voltage difference at a predetermined position while providing voltage to the blood flowing in the blood circuit. The device also allows the suppression of an increase in production cost for a disposable blood circuit.

Abstract: A blood purification device confirms whether a specific peak is provided by e.g. an ultrafiltration pump, to concentrate the blood or not and also accurately measures a blood re-circulation with a minimum of parameters providing a ratio of re-circulating blood. The blood purification device composed of arterial blood circuit route 1a and venous blood circuit route 1b, blood pump 3, dialyzer 2, water removal pump 8 providing the specific peak in the variation of blood concentration by removing water rapidly, and a detector detecting the specific peak, can measure the blood re-circulation thereby. The re-circulating blood flowing is the blood which was introduced again to arterial blood circuit route 1a after it had been returned to a patient from venous blood circuit route 1b. A first detector 5a installed in the arterial blood circuit route 1a and a second detector 5b installed in venous blood circuit route detector.

Abstract: A blood purification apparatus that can make the specific peak to be imparted to the blood more distinct, and therefore can detect blood recirculation reliably and precisely, is presented. It contains a blood circuit route, a blood pump, a dialyzer, dialysate introduction and discharge lines, a duplex pump, a pressurizing pump, a blood concentration means, and detection means that detect the specific peak imparted by the blood concentration means. The blood concentration means is configured to have an atmosphere release line, the tip of which is open to the atmosphere, that extends from between the pressurizing pump and the duplex pump in the dialysate discharge line, and to have an electromagnetic valve that can open or close the atmosphere release line. The electromagnetic valve opens the atmosphere release line to impart the specific peak by rapidly concentrating the blood flowing in the dialyzer for a short period of time.

Abstract: A blood purification device capable of performing an ideal blood purification treatment which accounts for blood recirculation is provided. That is, a blood purification device is furnished with a blood circuit containing an arterial blood circuit and a venous blood circuit for circulating blood outside the body, a dialyzer for purifying blood flowing in the blood circuit, hematocrit sensors for measuring the hematocrit value of blood circulating outside the body in the blood circuit, and a recirculation rate derivation means for obtaining a recirculation rate, and further provided with a true value derivation means for obtaining a patient's true hematocrit value based on the recirculation rate obtained by the recirculation rate derivation means.

Abstract: A method is provided for fitting waterproof seals onto outer peripheries of end portions of electric wires. The method feeds seals along the axis line of the wire and into a seal cavity. A passage forming member forms a feeding passage to feed the seal into the seal cavity with a posture to receive the electric wire. The seal then is locked in the seal cavity. The wire then is moved along the axis line and into the seal.

Abstract: A hemodialysis apparatus includes a dialysis device, a detecting device, an evaluation device and a memory device. The dialysis device dialyzes and ultrafiltrates blood of a patient according to an ultrafiltration volume based on an estimated dry weight while performing hemodialysis treatment on the blood circulating extracorporeally. The detecting device obtains time series data by measuring a parameter related to concentration of the blood circulating extracorporeally at a plurality of points in time series in a process of the hemodialysis treatment by the dialysis device. The evaluation device evaluates appropriateness of the hemodialysis treatment by evaluating whether the estimated dry weight approximates to a dry weight after the hemodialysis treatment by the dialysis device. The memory device stores a plurality of time series data when the hemodialysis treatment is evaluated to be appropriate by the evaluation device.

Abstract: A blood purification apparatus includes a blood circuit having arterial and venous blood circuits, a blood pump, a blood purifying device, an indicator applying device that applies a predetermined indicator to the blood flowing extracorporeally through the blood circuit, a detecting device that detects the indicator applied by the indicator applying device, an arithmetic device that calculates, based on the indicator detected by the detecting device, a recirculation rate, and a calculating device that calculates an ideal extracorporeally circulating blood flow that results in the recirculation rate being no more than a predetermined value when the recirculation rate calculated by the arithmetic device is greater than the predetermined value. The recirculation rate is a proportion of a recirculated blood flow, which is reintroduced to the patient from the venous blood circuit and directed again to the arterial blood circuit, relative to an extracorporeally circulating blood flow.

Abstract: A hemodialysis treatment apparatus includes a circulating blood volume variation rate detecting device, a vital sign detecting device and a display. The circulating blood volume variation rate detecting device detects a circulating blood volume variation rate of a patient in a time-course of a hemodialysis treatment. The vital sign detecting device detects a vital sign value of the patient in the time-course of the hemodialysis treatment. The display has a screen and displays both the circulating blood volume variation rate and the vital sign value on the screen along a time scale. The hemodialysis treatment apparatus dialyzes and ultrafiltrates extracorporeally circulating blood of the patient to perform the hemodialysis treatment.