摘要:
A catheter for the repair of an injured blood vessel, characterized by comprising a multiple-lumen type catheter tube having at least two tubular cavities, at least one dilating member disposed in the distal portion of said catheter tube and adapted to communicate with one of said tubular cavities, a lateral hole for the injection of a blood coagulation accelerant disposed on said catheter tube at the proximal side than said dilating member side and adapted to communicate with the other tubular cavity, and a hub having a plurality of flow conduit communicating severally with said tubular cavities of said catheter tube and adapted to communicate with the proximal portion of said catheter tube.
摘要:
There is provided a balloon catheter comprising a tubular body including at least one lumen, and a foldable balloon provided at a predetermined distal portion on the outer surface of said tubular body so that the balloon communicates with at least one lumen in said tubular body, wherein reinforcement is provided at a predetermined portion on the outer surface of said tubular body surrounded by said balloon. The reinforcement is preferably formed on an X-ray opague material and in the form of a coil.
摘要:
An intravascular catheter, comprising a hub having a pair of branched tubes mounted thereto apart from each other in the axial direction of the hub, a flexible double-walled tube having an inwardly tapered tip portion and consisting of an inner tube and an outer tube coaxial with the inner tube, and a needle removably inserted into the inner tube of the double walled tube. The base edge of the inner tube is located at an intermediate portion between the positions from which the pair of the branched tubes extend outward so as to enable the inner passageway formed in the inner tube to communicate with one of the branched tubes. The base edge of the outer tube is fixed to the tip of the hub so as to enable the annular passageway formed between the outer wall of the inner tube and the inner wall of the outer tube to communicate with the other branched tube. Further, the inner passageway has an opening at the tapered tip of the double-walled tube and the forward end of the annular passageway communicates with a bore or bores provided at the forward end portion of the outer tube.
摘要:
An intravascular catheter, comprising a hub having at least one branched tube mounted thereto apart from each other in the axial direction of the hub, a flexible double-walled tube having an inwardly tapered tip portion and consisting of an inner tube and an outer tube coaxial with the inner tube, providing an annular passageway between the outer wall of the inner tube and the inner wall of the outer tube and a needle removably inserted into the inner tube of the double walled tube. Further, the inner passageway has an opening at the tapered tip of the double-walled tube and the forward end of the annular passageway communicates with a bore or bores provided at the forward end portion of the outer tube excluding an upper portion thereof as defined by 20 in FIG. 6.
摘要:
A patch for preventing carburization, nitriding or oxidation comprises:a film comprising a heat-fusible or heat-meltable particulate material having an anti-carburizing, anti-nitriding or anti-oxidizing effect and a heat-decomposable resin as a binder; anda heat-resistant silicone pressure sensitive adhesive, which is decomposed at a carburizing, nitriding or oxidizing temperature, provided on one side of the film.
摘要:
In a catheter comprising a proximal inner tube having a reinforcing layer applied thereto and a distal inner tube made of a material having different physical properties from those of the proximal inner tube, the proximal and distal inner tubes are axially integrally connected such that the outer surface of the proximal inner tube is substantially smooth and continuous to that of the distal inner tube, and a sheath continuously covers the proximal and distal inner tubes. The catheter is produced by axially integrally joining proximal and distal inner tubes and continuously covering the interconnected tubes with a sheath.
摘要:
An apparatus for measuring cardiac output includes a first system for obtaining cardiac output based on a thermal attenuation method and a second system for obtaining blood flow velocity based on a thermal-type flowrate measurement. A constituent value is obtained from the cardiac output and blood flow velocity, and the constituent value is held. The apparatus also includes a computing unit for computing cardiac output from the already obtained constituent value and a blood flow velocity obtained at the time of measurement. The constituent value can be updated by re-starting the first system.
摘要:
Provided is a vinyl polymer of a sulfonated monomer having a basic skeleton represented by the following formula (1), wherein x is 1 to 20 and n is 10 to 10,000.Also provided is a novel hydrocarbon vinyl polymer aimed at providing a hydrocarbon solid polymer electrolyte which can become a substitute for a fluorine electrolyte, and which has chemical and physical properties sufficient for practical use, yet can be produced at a low cost. Additionally, provided is a polymer electrolyte membrane suitable as the ion-exchange membrane of a solid polymer fuel cell by employing the polymer of a sulfonated vinyl monomer which has excellent film-forming properties and a large ion-exchange capacity (EW).
摘要:
A guide wire for a catheter having a body portion comparatively high in rigidity and a distal end portion comparatively flexible.At least portions of the body portion and the distal end portion are formed of a super-elastic metallic member. At least portions of inner core portions on the body portion's side and on the distal end portion's side, both of which are coated by a plastic, are formed of the super-elastic metallic member, and at least a portion of the inner core portion on the distal end portion's side is made smaller in cross-section than the inner core portion on the body portion's side.In consequence, the catheter can be reliably and readily introduced to a predetermined position.