Valved sheath introducer for venous cannulation
First Claim
Patent Images
1. A sheath introducer, comprising:
- a sheath body including a lumen;
a handle attached to a proximal end of the sheath body, the handle including a bore communicating with the sheath body lumen, and at least a first receiving section and a second receiving section;
a valve, comprising;
a central portion disposed in the handle bore and including a cut portion;
a first anchoring member received in the handle first receiving section;
a second anchoring member received in the handle second receiving section; and
a cap attached to the handle such that a portion of the valve is compressed between the cap and the handle, the valve exhibiting a bunching effect wherein the valve has a first shape prior to insertion of an instrument through the cut portion of the valve and a second shape different from the first shape after insertion of the instrument through, and removal of the instrument from, the cut portion of the valve.
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Abstract
A valved sheath introducer for venous cannulation, including a valve, sheath, handle and cap. The valve is configured to permit safe introduction and removal of medical instruments through the sheath introducer. The valve may have one or more anchoring members and a thickened central portion through which a slit is formed. The central portion may have one or more concave surfaces and the slit can be angled with respect to the top surface of the valve. The cap is attached to the handle, compressing a portion of the valve therebetween.
434 Citations
14 Claims
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1. A sheath introducer, comprising:
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a sheath body including a lumen; a handle attached to a proximal end of the sheath body, the handle including a bore communicating with the sheath body lumen, and at least a first receiving section and a second receiving section; a valve, comprising; a central portion disposed in the handle bore and including a cut portion; a first anchoring member received in the handle first receiving section; a second anchoring member received in the handle second receiving section; and a cap attached to the handle such that a portion of the valve is compressed between the cap and the handle, the valve exhibiting a bunching effect wherein the valve has a first shape prior to insertion of an instrument through the cut portion of the valve and a second shape different from the first shape after insertion of the instrument through, and removal of the instrument from, the cut portion of the valve. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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Specification