摘要:
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.
摘要:
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.
摘要:
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. In a configuration in which the rotating shaft of the impeller is supported by the upper and lower bearings and a lower portion of each outer circumferential edge of the vanes is coupled to the annular coupling portion, the formation of a blood dot in the vicinity of the lower bearing can be suppressed.
摘要:
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.
摘要:
The present invention provides a blood purification apparatus and a blood purification circuit, by which a circuit can be shared by different modes for performing respective continuous blood purification methods, a structure of the apparatus performing the continuous blood purification methods can be simplified, and CHF, CHD, CHDF, and ECUM can be performed. The blood purification apparatus and the blood purification circuit according to the present invention includes: a first supply fluid channel (3) having one end connected to a supply fluid container (1) containing a supply fluid flowing in the first supply fluid channel (3); a first branched part (4) connected to the other end of the first supply fluid channel (3); a first supply fluid pump (10a) connected to the first branched part (4); a second supply fluid channel (7) which has one end connected to the first supply fluid pump (10a) and the other end connected to a dialyzer (6) that filters and dialyzes blood, and in which the supply fluid from the first supply fluid pump (10a) flows; a second supply fluid pump (10b) connected to the first branched part (4); and a third supply fluid channel (9) in which a supply fluid from the second supply fluid pump (10b) flows, having one end connected to the second supply fluid pump (10b) and the other end connected to a vein side blood channel (16) in which blood taken from a patient flows.
摘要:
A plate clamp where clamp resistance when a tube is slid from an insertion hole to a slit section is low, where clamping operation is easy, and where the tube being clamped at the slit section is less likely to unintentionally slide to the through-hole side. The clamp for a tube has the slit section for clamping and holding the tube at plate-like members, a tube lead-in section as a groove forwardly expanding from the forward end of the slit section, and the tube insertion hole continuously formed with the tube lead-in section. A stopper section is provided only on one side of the boundary between the tube lead-in section and the slit section.
摘要:
A wire is folded at the central part in the longitudinal direction thereof to form a holding member including a first linear portion 17, a return portion 18, and a second linear portion 19. The first linear portion 17 is inserted through a first pipe 13 of a guide member 2 while the second linear portion 19 is inserted through a second pipe 14 thereof. A first operation part 20 and a second operation part 23 are provided at the first linear portion 17 and the second linear portion 19, respectively. The first linear portion 17 and the second linear portion 19 of the holding member 4 are protruded from the distal end of the guide tube 10 to form a loop 3. The second linear portion 19 is protruded from the distal end of the guide tube 10 longer than the first linear portion 17 to change the shape of the loop 3 and to enlarge the loop 3.
摘要:
An example of the closed-type blood reservoir of the invention is furnished with an outer shell in which a space is formed within its interior, a flexible septum that is interposed between a blood storage chamber shell and a volume adjustment chamber shell and that divides the space into a blood storage chamber for storing blood and a volume adjustment chamber for storing volume adjustment liquid, a blood inlet port, a blood outlet port, and a blood storage chamber air discharge port that are provided in the blood storage chamber shell such that they are in communication with the blood storage chamber, and a volume adjustment liquid port that is provided in the volume adjustment chamber shell such that it is in communication with the volume adjustment chamber, for injecting and ejecting the volume adjustment liquid into and away from the volume adjustment chamber, wherein the blood inlet port and the blood outlet port each are provided tangentially to the inner surface of the blood storage chamber shell such that blood that flows into the blood storage chamber from the blood inlet port can swirl along the inner surface of the blood storage chamber shell, and wherein the closed-type blood reservoir has a first blood flow route, provided in the blood storage chamber, that is formed by an outward concavity of the inner surface of the blood storage chamber shell, and that is in communication with the blood outlet port and at least part of which is formed in the direction of extension of the blood outlet port.
摘要:
A blood filter device includes: a housing that includes a dome 2 provided with a blood inlet, a filter retaining portion 3 that is positioned below the dome, and a bottom portion 4 provided with a blood outlet; and a filter 8 that is mounted in a cavity of the filter retaining portion and partitions a cavity of the housing into a dome side and a bottom portion side. A sheet-like filter member 8a of the filter forms a plurality of pleats, and ridgelines of the respective pleats traverse the filter retaining portion in parallel respectively. The blood filter device further includes an annular holder 9 intervening between the filter retaining portion and the filter, a annular rib substrate 10 that is disposed facing the ridgelines of the pleats in an outer peripheral region of the filter and has a plurality of ribs inserted respectively between the ridgelines of the plurality of pleats; and a bonding resin 11 that is charged into outer peripheral portions of the filter including the annular holder and the annular rib substrate, and bonds the outer peripheral portion of the filter to the filter retaining portion. Gaps are ensured between the plurality of pleats of the filter, and thus air bubbles can be removed easily.