摘要:
An indwelling needle of the present invention comprises a flexible cover needle, a fixing wing externally fitted and fixed on a distal end of the cover needle, a cover needle hub mounted on a proximal end of the cover needle, an inner needle which is removably inserted through the cover needle and the cover needle hub and the distal end of which projects forwards from the cover needle, and a protecting tube for preventing kink of the cover needle which is externally fitted between the fixing wing and the cover needle hub on the cover needle.
摘要:
A drug solution delivery device comprises barrel (1) provided with a port at a distal end thereof and opened at a proximal end thereof, gasket (2) fluid-tightly and slidably arranged in the barrel, cylindrical connecting member (3) having proximal end (32) and distal end (31) to which gasket (2) is releasably connected, plunger (4) removably connected to proximal end (32) of connecting member (3), and pressed helical spring (5) arranged between gasket (2) and connecting member (3).
摘要:
A guide wire having a flexible distal end portion, uniform outer diameter and no stepped difference in the external surface is provided. The guide wire comprises a core wire 1 having a core body portion 11 having a relatively large cross sectional area of wire and a distal end portion 12 provided at a distal end 111 of the core body portion 11 and having a relatively small cross sectional area of wire, and a resin layer 2 coated on the core wire 1. At least the distal end portion 12 comprises a sparse bundle of a plurality of slender wire filaments 121, and substantially no stepped difference is present between the distal end portion 12 and the core body portion 11. The core body portion 11 is a slender wire filament having a section formed in a circular shape or a bundle of slender wire filaments whose number is more than that of the distal end portion and when used for inserting a catheter for PTCA, the diameter (average) of the core body portion 11 is generally about 0.05 mm to 0.10 mm.
摘要:
A self-administration device for liquid drugs, which can be filled in a short time without troubles such as leakage and is capable of a pushing operation in one-touch. The self-administration device for liquid drugs includes a casing 1; a port portion 2; a reservoir 3 having an open end which is closed by the port portion 2 and is capable of being restored to its original shape; and pushing means 4 for pushing the reservoir 3, wherein the reservoir 3 is pressed by the pushing means 4 to inject the liquid drug. The pushing means 4 includes a cylindrical member inserted slidably into the inner wall of the casing 1, and a spring member housed in the cylindrical member. The cylindrical member and the port position 2 are respectively provided with a male hook 425 and a female hook 25, for acting as detachable mutual engagement means.
摘要:
A liquid infusion device comprising a bladder assembly, an approximately tubular housing, and a liquid-drug-dispensing portion. The bladder assembly comprises a rod-like inner shaft, a tubular outer shaft slidably encasing the inner shaft, an inner shaft supporter, and a bladder made of elastic material and placed outside two shafts. The housing contains the bladder assembly and has an inlet/outlet portion at an end of the housing. The inner shaft supporter has at least one port for liquid drug communicating with the inlet/outlet portion. An amount of liquid drug remaining in the bladder can be greatly reduced, since a clearance between the inner shaft and outer shaft can be made very small.
摘要:
There is provided a winged indwelling needle for reducing the possibility of damaging a blood vessel or the like by a cannula, including a movable unit 1 having the cannula and a hub, a tube 2 connected to the rear portion of the hub, a holder 3, and a fixing wing 4, in which the movable unit 1 is provided on the holder 3 so as to be capable of sliding in the axial direction, is capable of changing in position between a position in use and a stored position which is behind the position in use, and the movable unit 1 is fixed to the position in use so as to be releasable. The holder 3 includes a protecting cylinder 26 which stores only the front portion including a blade point 6A of the cannula 6 in the interior thereof when the movable unit is positioned at the stored position and is provided with the fixing wing 4, and a guide member 27 exposed upward for guiding the sliding movement of the movable unit 1.
摘要:
An indwelling catheter comprises a tube, a female connector and an elastically deformable hemostasis valve which can be pressed by a male connector. An opening taper portion tapered forwardly is formed in a longitudinal intermediate portion of an inner circumferential surface of the female connector. The elastically deformable hemostasis valve is provided longitudinally slidably in the opening taper portion of the female connector and an inside portion extending rearwardly from the opening taper portion. The hemostasis valve includes; a body having a hollow form opened at its front and rear ends or a tubular portion fitted over the connecting portion from a rearward direction; and an openable/closable portion being opened by elastic deformation of the body or the tubular portion.
摘要:
An indwelling needle assembly and protector. The indwelling needle assembly has an inner needle, an inner needle hub, an outer needle, an outer needle hub, and a protector for protecting the needle point of the inner needle arranged on the outer periphery of the inner needle so as to be slidable in the axial direction. The protector includes a protecting member in which the needle point of the inner needle is stored and a closing member arranged on the outer periphery of the protecting member so as to be capable of sliding, a displaceable side wall which is capable of being displaced inward so as to close a distal opening of the protecting member, the displaceable side wall being displaced inwardly by the closing member arranged on the outer periphery of the distal end portion of the protecting member.
摘要:
The medical tube inserted into a body cavity of a patient includes a flexible tube and a magnet provided at the tip end portion of the tube for electromagnetically detecting the position of the tip end portion of the tube inserted in the body cavity, from outside the body. This magnet includes a plurality of magnet pieces arranged in the length direction of the tube to have a column-like shape as a whole. The direction of magnetic pole of the magnet is set to the length direction of the tube. Therefore, since the magnet is divided into a plurality of magnet pieces, even a magnet increased in size can be inserted smoothly into a body cavity of a patient.
摘要:
A multi lumen catheter including an inner tube having a front tip, an outer tube, a tube or lumen for inserting a guide wire, a blood extraction lumen and a blood return lumen which are formed in the outer tube and inner tube, respectively, or both in the outer tube, wherein the inner tube is inserted in the outer tube, and allowed to slide relative thereto, and the front tip is jointed to the front end of the outer tube to shut off communication of the lumens with the exterior. A multi-lumen catheter with balloon includes a balloon provided on a tabular body at a front end thereof, a blood return port and a blood extraction port provided in the tubular body on opposite sides of the balloon, and an outer cylinder slidable on the tubular body to close the blood extraction and blood return ports and the balloon.