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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Importance

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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 KAISHATOKYO821

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Harada, Fumiaki Fuji, JP 6 952
Ishida, Toshinobu Fuji, JP 26 1622

Cited Art Landscape

Patent Info (Count) # Cites Year
 
Other [Check patent profile for assignment information] (1)
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TERUMO KABUSHIKI KAISHA (1)
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KEWI AC (1)
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ALEXANDER BALKO (1)
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DOTTER, PAMELA, B. (1)
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* Cited By Examiner

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Patent Info (Count) # Cites Year
 
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6,863,686 Radially expandable tape-reinforced vascular grafts 12 2001
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AUST DEVELOPMENT, LLC (4)
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FREITAG, LUTZ (1)
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W. L. GORE & ASSOCIATES, INC. (13)
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SULZER INTRA THERAPEUTICS, INC. (1)
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ENDOTEX INTERVENTIONAL SYSTEMS, INC. (3)
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Abbott Cardiovascular Systems Inc. (21)
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7,938,843 Devices configured from heat shaped, strain hardened nickel-titanium 4 2003
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8,337,518 Expandable trans-septal sheath 2 2007
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8,562,559 Expandable iliac sheath and method of use 1 2010
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6,497,709 Metal medical device 79 1997
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* Cited By Examiner