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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ATTORNEY / AGENT: (SPONSORED)
 

Importance

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Abstract

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 KAISHATOKYO1152

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Harada, Fumiaki Kawasaki, JP 6 834
Ishida, Toshinobu Kanagawa-ken, JP 26 1120

Cited Art

Patent Info (Count) # Cites Year
 
ALEXANDER BALKO (1)
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DOTTER, PAMELA, B. (1)
4,503,569 Transluminally placed expandable graft prosthesis 827 1983
 
ENDOTEX INTERVENTIONAL SYSTEMS, INC. (1)
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TERUMO KABUSHIKI KAISHA (1)
4,610,674 Catheter introducing instrument 133 1985
 
OTHER [CHECK PATENT PROFILE FOR ASSIGNMENT INFORMATION] (1)
4,795,458 Stent for use following balloon angioplasty 456 1987

Patent Citation Ranking

Forward Cites

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