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    • 16. 发明专利
    • TEST INSTRUMENT
    • AU633965B2
    • 1993-02-11
    • AU6218590
    • 1990-09-05
    • TERUMO KABUSHIKI KAISHA
    • ZENSHO KANDAKATSUHIKO MIYAGUCHIMASUFUMI KOIKETSUYOSHI HAYAKAWANAOKI MORIKAWA
    • G01N33/52G01N37/00
    • A test instrument for uniformly spreading a collected specimen on a reagent layer has a first opening for collecting the specimen, a specimen spreading layer having an upper surface a portion of which is exposed to the first opening, the reagent layer provided so that an upper surface thereof is in contact with the lower surface of the specimen spreading layer, and a support layer provided on a lower surface of the reagent layer. Even if the specimen does not attached itself in a uniform distribution over the large area of the first opening, it will be evenly distributed at the second opening, the opening area of which is smaller than that of the first opening at which measurement is performed. When an adsorbing layer provided in the proximity of the edge portion of the first opening is supplied with an excess amount of the specimen, a direct path to the adsorbing layer is blocked by the inner peripheral region of the first opening so that the adsorbing layer is soaked via the spreading layer. Consequently, the specimen is distributed on the reagent layer uniformly and at a fixed concentration irrespective of the amount thereof.
    • 20. 发明专利
    • EXPANSION UNIT AND APPARATUS FOR EXPANDING TUBULAR ORGAN LUMEN
    • AU638886B2
    • 1993-07-08
    • AU1083792
    • 1992-02-07
    • TERUMO KABUSHIKI KAISHA
    • FUMIAKI HARADATOSHINOBU ISHIDA
    • A61B17/00A61B19/00A61F2/00A61F2/06A61F2/88
    • The invention provides an instrument made of a shape memory alloy cylinder for securing the inner diameter of the lumen of a tubular organ, said instrument being treated so as to enhance X-ray image contrast by plating with or vacuum evaporation of a metal with higher density than that of the shape memory alloy of at least part of the cylinder. Therefore, this instrument can be introduced into and left at the intended portion inside the tubular organ. This invention relates also to an apparatus for securing the inner diameter of the lumen for leaving in or recovering from the lumen the instrument for securing the inner diameter which is shaped substantially in a cylindrical form with a bi-directional shape memory alloy which can change its dimension in the radial direction with temperature change. This apparatus comprises a catheter capable of fitting the instrument for securing the inner diameter to the outer peripheral surface of an instrument fitting portion near the tip and a catheter sheath whose both ends are open, which can house the catheter having fitted thereto the contracted instrument in the lumen thereof, and whose inner diameter is equal to or smaller than the outer diameter of the expanded instrument for securing the inner diameter. Since the catheter sheath is used, the instrument for securing the inner diameter can be securely held in the sheath while being fitted to the catheter. Accordingly, it is not necessary to supply large quantities of cooling water so as to maintain a reduced diameter in order to wind the instrument around the catheter without any gap and the load to a patient can thus be reduced. Since the catheter sheath is used, the instrument for securing the inner diameter is neither exposed to the tubular organ, nor caught in the middle, nor undergoes deformation.