Expansion unit and apparatus for expanding tubular organ lumen

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 5201901
SERIAL NO

07477843

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ATTORNEY / AGENT: (SPONSORED)

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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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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
TERUMO KABUSHIKI KAISHATOKYO950

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Harada, Fumiaki Fuji, JP 6 984
Ishida, Toshinobu Fuji, JP 26 1817

Cited Art Landscape

Patent Info (Count) # Cites Year
 
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