Abstract: A female connector (100) to be connected to a male connector (170) having a tubular section (172), out of which a liquid-like substance flows, is disclosed. The female connector has an adaptor (110) installed on the outer peripheral surface of the tubular section, and a handle (120) fitted on the adaptor. The adaptor has a tube-shaped section (112) having an opening (119a) at one end. The tube-shaped section includes an insertion section (119) into which the tubular section is inserted from the opening, and the insertion section has flexibility and elasticity. The handle has a rigidity higher than that of the insertion section of the adaptor. There is provided movement limitation means that limits a range in which the handle is capable of moving relative to the adaptor from an end of the adaptor on an opposite side of the opening to an end thereof on the opening side in a direction of a center axis (111) of the adaptor.

Abstract: A blood filter device includes: a housing (1) that includes a dome portion (2), a filter retaining portion (3), and a bottom portion (4); an inlet (5) provided on a lateral portion of the dome portion so as to allow blood to flow into the dome portion horizontally and along an inner wall of the dome portion; an air vent (6) provided at a top of the dome portion; a filter (8) for filtering a foreign substance in the blood, which is disposed in the filter retaining portion; and an outlet (7) for the blood, which is provided in the bottom portion. The blood filter device is configured so that the blood flows into the dome portion from the inlet, passes through the filter retaining portion, and then flows out from the outlet.

Abstract: Two through holes are formed in a first electrode part 10 to penetrate the first electrode part 10 in the extending direction of a substrate 30. The same two through holes are also formed in a second electrode part 20. A first lead 40 is inserted in and connected to one of the through holes of the first electrode part 10. A second lead 50 is inserted in the other through hole of the first electrode part 10 while it is insulated from the first electrode part 10 and engaged with an opening edge of the other through hole. An end of the second lead 50 is inserted in and connected to one of the through holes of the second electrode part 20. An interval between the first electrode part 10 and the second electrode part 20 is determined by the second lead 50.

Abstract: A medical film that is excellent in biocompatibility and bioabsorbability and has an excellent strength in suturing and bonding is provided. A reinforcing material 12 made of a biodegradable polymer is placed in a gelatin solution so as to allow the solution to infiltrate in the reinforcing material 12 and then the gelatin is dried. This allows the gelatin that has infiltrated entirely in an internal part of the reinforcing material 12 to gel, thereby forming a gelatin film 11. Thus, a medical film 1 in which the reinforcing material 12 and the gelatin film 11 are integrated is obtained. The gelatin film 11 preferably is a cross-linked gelatin film.

Abstract: A balloon for measuring a pressure related to the oral cavity including a pressure-receiving portion 20 that is formed of an elastic material and that internally forms an enclosed space and a tubular portion 21 that is formed integrally with the pressure-receiving portion, the balloon being configured to detect the air pressure in the interior of the pressure-receiving portion by communicating the interior of the pressure-receiving portion with a pressure detector through an opening end of the tubular portion. A transverse cross-section of the pressure-receiving portion orthogonal to the axial direction of the tubular portion has a flattened outer circumferential shape with an oblateness f=(A?B)/A, where A represents the length of a major axis of the outer circumferential shape and B represents the length of a minor axis thereof being set to a range of 0.1?f?0.7 at a position at which the length A of the major axis is at a maximum.

Abstract: A heat exchanger includes a plurality of tubes 2 through an inner cavity of which a heat-transfer medium liquid flows, a sealing member 6 that seals the plurality of tubes 2 while exposing both ends thereof, with a blood channel passing outside each of the tubes 2 being formed in a central portion in the axial direction of the tubes, and a housing 5 that accommodates the tubes 2 sealed with the sealing member 6. The heat exchanger further includes a hollow fiber membrane 3 that is formed of a plurality of hydrophobic and gas permeable hollow fibers 4 and that is disposed on at least one of an entrance side and an exit side of the blood channel in the housing 5 so that a liquid flowing through the blood channel passes through the hollow fiber membrane 3. The housing 5 includes openings 10 for exposing open ends of each of the hollow fibers 4 forming the hollow fiber membrane 3 to the outside, and gaps between an inner side of the openings and the hollow fibers 4 are sealed.

Abstract: Heart side magnets 20 and 21 are fixedly secured to the surface of a heart 100. A material which has a higher rigidity than the cardiac muscle is molded to form a molded member 30. Molded member side magnets 40 and 41 are attached to the molded member 30 so as to correspond to the heart side magnets 20 and 21. The polarity of one of the heart side magnets 20 and 21 and the molded member side magnets 40 and 41 is switched at predetermined timings, whereby the heart 100 is magnetically expanded and contracted to improve the pumping function.

Abstract: A peritoneal function testing method of using a ratio MTACun/MTACc calculated using MTACun and MTACc as an index for a peritoneal function test. MTACun is an overall mass transfer-area coefficient for urea nitrogen and MTACc is an overall mass transfer-area coefficient for creatinine. Use of the MTACun/MTACc ratio enables examination of the future peritoneal function of a patient (a mechanism of deterioration in peritoneal function). MTACun and MTACc are obtained using a Pyle-Popovich model. The peritoneal function testing method further calculates a permeability coefficient for cell pores (LPSC) and an overall permeability coefficient (LPS) from a Three-Pore Theory model to obtain a ratio LPSC/LPS calculated using the LPSC and the LPS, and further uses the LPSC/LPS ratio and the MTACun/MTACc ratio as indexes for the peritoneal function test.

Abstract: A three-way stopcock that can be opened/closed in the same manner as conventional operation methods and can reduce stagnated portions of fluid in a fluid flow passage. Out of branch openings, a first branch opening and a second branch opening are arranged on a straight line, and a third branch opening is directed perpendicularly to the line connecting the first and second branch openings. Provided at a flow passage switch portion are a first flow-passage opening and a second flow-passage opening that are arranged on a straight line and a third flow-passage opening that is directed perpendicularly to the line connecting the first and second bran openings.

Abstract: A mixing portion is provided between a medical fluid container connecting portion 5 to which an opening of a medical fluid container 100 for a sclerosing agent is to be connected and a gas container connecting portion 6 to which an opening of a gas container 200 for a gas is to be connected. The mixing portion has a communication passageway R for communication between the openings of the containers 100 and 200 connected to the connecting portions 5 and 6. The mixing portion is deformable such that relative positions of the connecting portions 5 and 6 can be changed.

Abstract: An indwelling needle device includes a shield tube with a flexible outer needle fixed at a front end, a hub movable in a lumen of the shield tube, an infusion tube attached to an end thereof, a rigid inner needle at a front end part of the hub and insertable into a lumen of the outer needle. A lateral penetration path penetrates to a lumen of the hub. A space is provided between an outer surface of the hub and an inner surface of the shield tube. A sealing section is on the outer surface of the hub. The outer peripheral surface of the hub forms engagement recesses. A rear-end-side engagement projection is on the inner surface of the shield tube and engages with the engagement recesses. Hub side walls, with a communication area opening, couple with the front end of the hub. The hub can be small in size.

Abstract: A tube pump rotor including a rotor element, a plurality of first swing portions supported pivotally at their base end portions by the rotor element, second arm-shaped swing portions supported pivotally at their base end portions individually by the first swing portions, rollers supported rotatably by the individual free ends of the second swing portions, and buffer members made to confront the side faces of the second swing portions so that the rollers may be individually directed radially outward of the rotor.

Abstract: The extracorporeal blood circulating apparatus of the present invention includes: a closed-type venous reservoir having a blood storage chamber and a volume adjusting chamber that are disposed adjacently by partitioning a closed space formed by a housing; an adjusting liquid tank for storing an adjusting liquid that is connected to the volume adjusting chamber; and a blood pump that is connected to the blood storage chamber. In the housing, an inflow port for allowing blood to inflow and an outflow port for allowing blood to outflow are provided so as to communicate with the blood storage chamber, and an adjusting port for injecting and ejecting the adjusting liquid is provided so as to communicate with the volume adjusting chamber. The blood pump is connected via the outflow port, and the adjusting liquid tank is connected via the adjusting port.

Abstract: The cavitation heating system of the preferred embodiment includes a reservoir to contain an operating fluid, and a cavitator subsystem with an inlet to receive the operating fluid from the reservoir, a cavitator to cavitate the operating fluid, and an outlet to transfer the cavitated operating fluid to the reservoir. The cavitation of the operating fluid generates heat. The cavitation heating system may use various techniques either singly or in combination to increase the heat generated from the cavitation of the operating fluid, including: the use of oil as an operating fluid, the addition of dissolved noble gases in the operating fluid, the use of a pump to create jets that cavitate the operating fluid in a vessel and heat the operating fluid, and the use and control of pressure on the cavitation of the operating fluid.

Abstract: An impeller 22 includes a rotating shaft 7 supported rotatably by an upper bearing 9 and a lower bearing 20 at upper and lower ends, a plurality of vanes 6, an arm 18 coupling an inner circumferential side of the vanes to the rotating shaft, an annular coupling portion 8 coupled to an outer circumferential side of each vane, and a driven magnet portion 12 placed in a lower portion of the annular coupling portion. A drive magnet portion 16 provided at a rotor 13 and a driven magnet portion 12 are opposed to each other with a bottom wall of the housing interposed therebetween, and rotation of the rotor is transmitted to the impeller through magnetic coupling. A blockade member 23 is placed below the vanes and blocks a space in a region spreading between the rotating shaft and the annular coupling portion while leaving an opening 14 at least around the rotating shaft.

Abstract: A process for producing a porous body with different physical properties in desired regions is provided by pore forming treatment, not by bonding two or more materials made porous beforehand, with, for example, an adhesive. Raw materials are prepared, each of which contains a polymer and a raw material preparation solvent. At least two types of the raw materials having different compositions are prepared. Thereafter, the respective raw materials are frozen into desired shapes to form frozen bodies thereof. The frozen bodies thus formed are brought into contact with each other to form an assembly thereof, the assembly is exposed to a condition under which the frozen bodies begin to melt, and the assembly is then freeze-dried. Thus, a porous body having regions different in physical properties can be obtained. Such a porous body can be used as, for example, an adhesion inhibitory material or a scaffold for a cell culture.

Abstract: A blood vessel anastomosing auxiliary tool consisting of a flexible hollow conduit having opening ends at the opposite ends thereof, and comprising, on the outer surface of the conduit, at least two bulky portions, a retrieving means for retrieving the conduit from within a blood vessel, and desirably a guide wire for guiding the conduit when it is inserted into a blood vessel, characterized in that the conduit has flexibility and self-restoring property, and the bulky portions are disposed on the conduit eccentrically, the use of the blood vessel anastomosing auxiliary tool permitting a quick and positive anastomosis between a bypassed blood vessel and a bypassing blood vessel while a blood flow remaining in a portion between the central and peripheral sides of the bypassed blood vessel is secured during a blood vessel bypassing operation, and further ensuring an unobstructed blood vessel anastomosing to allow an easier practicing operation (anastomosing) than those by conventional tools.

Abstract: A bloodstream dilating device 1 is composed of an elastic member 2 extending in a direction of blood flow in a true lumen 115. The elastic member 2 pushes the inner wall of the true lumen 15 outward to dilate the bloodstream. An aortic dissection treating device includes an obturator and a fixing member for fixing the obturator to the inner layer of an aorta. The obturator is inserted up to the point that it can cover an entry port formed in the aorta. The obturator is deformed along the periphery of the entry port in the inner layer by blood pressure to occlude the entry port.

Abstract: An ablation catheter which has an electrode that can electrically cauterize a living body tissue at the tip side of a catheter, and this electrode is characterized in that the vibration and/or rotation of the electrode is controllable according to the temperature of the cauterization portion.

Abstract: A weight sensor includes an arm having an end fixed to a pillar and a free end; a filtrate holder, a replacement fluid holder, and a dialysate holder provided at three locations of the arm along a longitudinal direction of the arm to hold respective substances; a first strain value sensor, a second strain value sensor, and a third strain value sensor each of which detects a strain value of the arm corresponding to a total weight of the substances held by the holders ranging from a holder proximate to the free end to a corresponding holder; and a weight calculation unit that calculates the total and each of the weights from the obtained detection results.