Abstract: A winged angled needle assembly (1) has a hub (3) to which a proximal end portion (2?) of an angled needle (2) having a sharpened tip portion (2?) is joined and a pair of wings (4) attached to both sides of the hub (3) and further includes a fixing member (5) attached so as to support the wings and an extensible, contractible needle guard (6) disposed between the hub (3) and the fixing member (5) so as to connect these two members. The guard (6) extends in the direction from the proximal end portion (2?) to the sharpened tip portion (2?) of the angled needle (2) when extended, so that the tip portion (2?) can be encased in said guard (6) simultaneously with pulling the angled needle (2) out of an implanted port. The guard (6) has exposure prevention means attached thereto and is externally stopped, so that the sharpened tip portion (2?) is kept from exposing once it is encased in the guard. The angled needle (2) can have a length as required regardless of the length of the wings.

Abstract: A protective tool for a therapeutic material delivery device prevents wrong sticking of the outer needle of the device after use and prevents dissipation of blood adhering to the outer needle and comprises a cover (8?A) and a cap (61) or stopper (65) attached to a forward end of said cover for protecting the forward end of the outer tubular needle (2A), wherein said cover (8?A) is formed of a plurality of tubes (8?A1, 8?A2, 8?A3, . . .

Abstract: A multi-layered tube composed of at least two layers, each formed from a different resin, e.g. resin (I) or resin (II). Resin (I) contains 5 to 40 mass % of a polypropylene resin and 95 to 60 mass % of at least one hydrogenated copolymer. Resin (II) contains 45 to 100 mass % of a polypropylene resin and 55 to 0 mass % of a hydrogenated copolymer. The multi-layered tubes may be used in the field of medicine and provide tubing which is excellent in transparency, flexibility and anti-kinking properties, and which is durable during sterilization procedures with high-pressure steam. The multilayer tubing may also be safely disposed of as it generates no toxic gases, such as dioxin, when incinerated. The multilayered tubing has excellent connectability and may be bonded to other tubing using hot solvent bonding or solvent adhesion. The multilayered tubing which is free from generation of any toxic gas when incinerated, and which is excellent in hot solvent bonding or solvent adhesion to other tube.

Abstract: A stent (1) formed in the shape of a generally tubular body which has a spring function with which the tubular body is diameter-contractible toward the central axis (C) of the tubular body and which is expandable to the initial diameter after contraction, the stent being loaded into a sheath and being to be delivered to a diseased part to be treated, wherein the stent (1) maintains a configuration curved along the longitudinal direction of the stent when not inserted in the sheath, and (B) when the stent (1) is inserted into the sheath, the stent (1) is contracted toward the central axis (C) of the stent (1) and is elongated in the form of a generally straight line along the longitudinal direction of the stent (1), whereby the stent (1) is loaded into the sheath in the form of a substantially straight line, and the stent can remarkably improve safety and conformity during delivery in the artery, and the like.

Abstract: A protective tool for a therapeutic material delivery device prevents wrong sticking of the outer needle of the device after use and prevents dissipation of blood adhering to the outer needle and comprises a cover (8′A) and a cap (61) or stopper (65) attached to a forward end of said cover for protecting the forward end of the outer tubular needle (2A), wherein said cover (8′A) is formed of a plurality of tubes (8′A1, 8′A2, 8′A3, . . .

Abstract: A new cartridge for a marker delivery device used in radiotherapy is provided. The cartridge has a transparent cartridge body that holds the marker inside it and permits external visual observation of the marker, and has an outer tube that is fitted on an outer circumference of the cartridge body, the outer tube is slidable in the longitudinal direction of the cartridge body, with this outer tube's sliding the cartridge body is exposable. The marker delivery device is suitable for implanting the marker in a flexible coil shape, made of X-ray-opaque or ultrasonic-wave opaque metal into the human body. And the cartridge of the device is capable of implanting a coil-shaped marker long enough in size compared with that of tissues, which permits, in marker-assisted ultrasonic imaging, to assess the size of the tissues accurately.

Abstract: A cylindrical needle guard for attaching and protecting a medical winged needle assembly to which a tube is connected, comprising at least two or more projecting portions on the top sidewall from the front portion to the rear portion, a slit at the bottom of the rear portion along a longitudinal direction of the needle guard, and a groove to fix the tube on the top sidewall of the rear portion; or comprising a pair of stoppers on both sides of the body and locking portions at thick portions and at the bottom of the stoppers for locking the wings of the winged needle assembly. This winged needle assembly to which the tube is connected is safely and securely retracted and locked in the needle guard.

Abstract: A protective tool for a therapeutic material delivery device prevents wrong sticking of the outer needle of the device after use and prevents dissipation of blood adhering to the outer needle and comprises a cover (8′A) and a cap (61) or stopper (65) attached to a forward end of said cover for protecting the forward end of the outer tubular needle (2A), wherein said cover (8′A) is formed of a plurality of tubes (8′A1, 8′A2, 8′A3, . . .

Abstract: A cylindrical needle guard for attaching and protecting a medical winged needle assembly to which a tube is connected, comprising at least two or more projecting portions on the top sidewall from the front portion to the rear portion, a slit at the bottom of the rear portion along a longitudinal direction of the needle guard, and a groove to fix the tube on the top sidewall of the rear portion; or comprising a pair of stoppers on both sides of the body and locking portions at thick portions and at the bottom of the stoppers for locking the wings of the winged needle assembly. This winged needle assembly to which the tube is connected is safely and securely retracted and locked in the needle guard.

Abstract: A protective tool for a therapeutic material delivery device prevents wrong sticking of the outer needle of the device after use and prevents dissipation of blood adhering to the outer needle and comprises a cover (8′A) and a cap (61) or stopper (65) attached to a forward end of said cover for protecting the forward end of the outer tubular needle (2A), wherein said cover (8′A) is formed of a plurality of tubes (8′A1, 8′A2, 8′A3, . . .

Abstract: A process for producing a medical device having a branch includes the steps of: welding a bottom of the tubular member on a mounting surface of a constituent material of a main tube extruded under elevated temperature, welding firmly the bottom of the tubular member to the mounting surface of the main tube while aspirating the constituent material of the main tube from above the tubular member, forming a hole in the mounting surface of the main tube so as to communicate an interior of the tubular member with an interior of the main tube, and cutting the main tube, thereby assembling the medical device having the branch.

Abstract: A process for producing a medical device having a branch includes the steps of: welding a bottom of the tubular member on a mounting surface of a constituent material of a main tube extruded under elevated temperature, welding firmly the bottom of the tubular member to the mounting surface of the main tube while aspirating the constituent material of the main tube from above the tubular member, forming a hole in the mounting surface of the main tube so as to communicate an interior of the tubular member with an interior of the main tube, and cutting the main tube, thereby assembling the medical device having the branch.

Abstract: A personal identification system for collating an article requiring personal identification with a person using the article has a personal identification data reader for reading the image of a characteristic portion of a human body capable of identifying a person such as his fingerprint and digitizing the image data. Moreover, the system has a label printer for printing the personal identification data on a label as two-dimensional data codes and the personal identification data printed on the label is read by a label data reader serving as a two-dimensional data code reader. The personal identification data read by the personal identification data reader and acceptance or rejection of the collation result is decided. These operation histories are recorded and preserved in a hard disk.

Abstract: The platelet preservation solution does not containing any plasma proteins but includes 5 to 100 mM of glycerol, from 5 to 15 mM of sodium citrate, from 10 to 30 mM of sodium acetate, from 10 to 50 mM of disodium hydrogen phosphate, up to 10 mM of citric acid, up to 50 mM of glucose and from 50 to 150 mM of electrolyte compounds in addition to the sodium acetate, disodium hydrogen phosphate and sodium citrate. The electrolyte compounds include sodium chloride. The artificial platelet preservation solution prevents adverse reactions caused by plasma components resulting in a greater platelet survival ratio during storage.

Abstract: A plastic tube extruded from an extruder is conveyed through a plasma treatment apparatus. The plasma treatment apparatus is equipped with a tubular electrode body having a high-voltage side electrode and a grounded-side electrode disposed on a tubular insulator and a high frequency electric power source connected to the electrodes. When the plastic tube is conveyed through the electrode body with one end of the tube open to the atmosphere, a mixture of a glow discharge-stabilizing gas and a treating gas is fed into the other end of the tube and an alternating-current high-voltage is applied to generate a plasma region at a pressure near to atmospheric pressure in which the tube is treated with a glow discharge plasma. This method allows an interior and/or exterior surface of a plastic tube designed to convey a medical fluid to be continuously treated by a glow discharge plasma at atmospheric pressure to form an anti-thrombotic and blood-compatible film on the surface treated.

Abstract: A coated palladium fine powder comprising palladium particles of a mean particle size in the range of 0.1 to 1.0 .mu.m which are coated with nickel or alloy of nickel with other metal are employable, optionally in combination with palladium particles or palladium-coated ceramic particles of a mean particle size in the range of 0.1 to 1.0 .mu.m, for preparing an electroconductive paste.

Abstract: A portable device for welding a heat weldable tube has a main body case, a first electrode supported on an end part of the main body case, a movable member arranged opposite to the end part of the main body case, a second electrode arranged on the movable member substantially opposite to the first electrode, a manipulation member for displacing the movable member forwardly and rearwardly with respect to the end part of the main body case, a first elastic member returning the manipulation member to a predetermined position when the manipulation member has been opened, and a second elastic member providing elasticity in a direction of movement of the movable member when the movable member moves toward the end part of the main body case by the manipulation member.

Abstract: A medical connector to be attached to a liquid introducing tube has a first connecting part adapted to be connected to one portion of a medical liquid introducing tube, a second connecting part adapted to be connected to another portion of the medical liquid introducing tube and being formed integrally with the first connecting part, a breaking portion formed between the first and second connecting parts and adapted to be broken under finger pressure, and a seal cap for sealing an opening of the second connector part after breaking the breaking portion.

Abstract: This invention is a switch bag type blood-gathering set used for transfusing blood gathered from a blood donor to the same blood donor again, and for newly gathering predetermined amount of blood from the blood donor. This switch bag type blood-gathering set comprises a liquid transferring member for introducing a physiological saline solution into the blood-gathering set, a blood transfusing member for introducing blood from a blood bag into the blood-gathering set, a blood-transfusing and gathering member for supplying blood to or gathering blood from the donor, a washing solution storing member for containing a waste liquor after priming in the blood-gathering set, and a blood storing member for storing blood gathered from the donor, and these constituents are connected by connecting tubes so as to not contact with the air outside.

Abstract: The instant invention relates to a method for culturing and floating animal cells in a double-bag container, where an outer bag containing culture media and a volume of air houses an inner bag of a semipermeable film containing cells suspended in a culture media. The semipermeable film has pores of sufficient size so as to prohibit cells within the inner bag from passing therethrough but allowing culture liquid and air to pass through it. To optimize the exchange of nutrients between the interiors of the two bags, a protective mesh surrounds the inner bag and the double-bag container is fastened to an agitator which provides either a rotating or shaking motion.