US Patent No: 5,201,901

Number of patents in Portfolio can not be more than 2000

Expansion unit and apparatus for expanding tubular organ lumen

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Abstract

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A tubular-organ expansion unit has a cylindrical body made of a shape memory alloy which is capable of maintaining the inside diameter of a tubular body organ. The tubular-organ expansion unit includes an X-ray contrast enhancer for improving the X-ray contrast of the tubular-organ expansion unit relative to the X-ray contrast of the tubular-organ expansion unit before the X-ray enhancer was provided on the expansion unit. In a tubular-organ expansion apparatus and a method for indwelling the tubular-organ expansion unit into a lumen of a tubular body organ, the shape memory alloy of the tubular-organ expansion unit will change its radial dimension in response to changes in temperature. The shape memory alloy may be bidirectional. The tubular-organ expansion apparatus not only includes the tubular-organ expansion unit but also comprises a catheter to which the tubular-body organ expansion unit is attached and a catheter sheath which can sheath the tubular body expansion unit and the portion of the catheter to which said unit is attached.

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Patent Owner(s)

Patent OwnerAddressTotal Patents
TERUMO KABUSHIKI KAISHATOKYO1190

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Harada, Fumiaki Kawasaki, JP 6 870
Ishida, Toshinobu Kanagawa-ken, JP 26 1250

Cited Art Landscape

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