Importance

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Abstract

A medical valve comprises a valve member made of a flexible elastic material and having at least two faces. A first slit is disposed between a first face of said at least two faces and a second face of said at least two faces, and a second slit is disposed between said first face and said second face, wherein the first slit and the second slit intersect each other. A first opening width of the first slit on the first face is different from a second opening width of the first slit on the second face, and a first opening width of the second slit on the first face is different from a second opening width of the second slit on the second face. A catheter assembly comprises a catheter and a connecting instrument. The catheter includes a hollow body introducible into a blood vessel and a proximal member communicating with a hollow portion of the hollow body, the proximal member having an introduction passage in which a valve is disposed therein. The connecting instrument includes a tubular portion connectable to the introduction passage and insertable in a liquid sealing manner through the valve disposed in the introduction passage. The distal end of the tubular portion of the connecting instrument is disposed adjacent to an inner surface of the interior of the hollow body of the catheter when the connecting instrument is connected to the introduction passage of the proximal member of the catheter.

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First Claim