Medical instrument
First Claim
1. A medical instrument comprising:
- a main body having a path extending therethrough, and wherein a rod-like member is insertable or drawable through said path; and
a valve body provided in said path of the main body for maintaining at least a liquid-tight seal with said rod-like member when said valve body is opened by said rod-like member being passed through said valve body and through said path, and for closing said path at least in a liquid-tight state when said rod-like member is absent from said path, said valve body being made of a flexible and elastic material and being a single integral member;
said valve body having two end faces in said path;
said valve body further having a first slit openable in only one of said end faces and a second slit openable only in the other of said end faces, said first and second slits being oriented at an angle to each other;
said first slit and said second slit each extending only partly through said valve body and crossing each other within said valve body, said first and second slits intersecting each other at points below or between said end faces of said valve body but not at said end faces of said valve body; and
said rod-like member being insertable or drawable through said slits at the crossing of said slits.
1 Assignment
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Accused Products
Abstract
A medical instrument comprises a main body having a path formed therethrough, through which a tubular member is insertable or drawable. A valve body is provided in the path of the main body, maintaining at least a liquid-tight state with the rod-like member, when the path is opened by the rod-like member inserted through the path, and closing the path at least in the liquid-tight state, when the rod-like member is not inserted through the path. The valve body has two end faces. The valve body is formed with a first slit openable in one of the end faces and a second slit openable in the other of the end faces. The first slit and the second slit cross each other in the valve body.
In consequence, rod-like members being of widely varied outer diameters are inserted through the path of the main body and held therein in a liquid-tight state to thereby reliably prevent blood leakage. Also, blood flow-out when the rod-like member or members are abruptly withdrawn from the path of the main body is reliably prevented. Further, a single valve body is provided so that the construction of the medical instrument can be simplified.
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Citations
15 Claims
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1. A medical instrument comprising:
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a main body having a path extending therethrough, and wherein a rod-like member is insertable or drawable through said path; and a valve body provided in said path of the main body for maintaining at least a liquid-tight seal with said rod-like member when said valve body is opened by said rod-like member being passed through said valve body and through said path, and for closing said path at least in a liquid-tight state when said rod-like member is absent from said path, said valve body being made of a flexible and elastic material and being a single integral member; said valve body having two end faces in said path; said valve body further having a first slit openable in only one of said end faces and a second slit openable only in the other of said end faces, said first and second slits being oriented at an angle to each other; said first slit and said second slit each extending only partly through said valve body and crossing each other within said valve body, said first and second slits intersecting each other at points below or between said end faces of said valve body but not at said end faces of said valve body; and said rod-like member being insertable or drawable through said slits at the crossing of said slits. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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Specification