Valved sheath introducer for venous cannulation
First Claim
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1. A method for assembling a valved sheath introducer, comprising:
- providing a valve including a slit, the valve comprising a first anchoring member, a second anchoring member unconnected to the first anchoring member, and a central portion, the slit traversing through the central portion;
inserting the valve into a handle, the first and second anchoring members positioned respectively in a first and second receiving sections of the handle and the central portion positioned in a bore of the handle, the central portion having a diameter approximately equal to a diameter of the bore, the first and second anchoring members and central portion extending distally into the handle; and
attaching a cap to the handle under pressure, the cap contacting a proximal most surface of the valve and compressing the valve between the cap and the handle.
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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.
429 Citations
15 Claims
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1. A method for assembling a valved sheath introducer, comprising:
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providing a valve including a slit, the valve comprising a first anchoring member, a second anchoring member unconnected to the first anchoring member, and a central portion, the slit traversing through the central portion; inserting the valve into a handle, the first and second anchoring members positioned respectively in a first and second receiving sections of the handle and the central portion positioned in a bore of the handle, the central portion having a diameter approximately equal to a diameter of the bore, the first and second anchoring members and central portion extending distally into the handle; and attaching a cap to the handle under pressure, the cap contacting a proximal most surface of the valve and compressing the valve between the cap and the handle. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A method for assembling a valved sheath introducer, comprising:
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providing a valve including a slit traversing through a central portion and at least a first anchoring portion at least partially circumscribing the central portion, a section of the valve between the first anchoring portion and the central portion having a thickness less than a thickness of both the first anchoring portion and the central portion; inserting the valve into a handle, the first anchoring portion positioned in a corresponding first handle receiving section, the central portion positioned in a bore of the handle, the central portion having a diameter approximately equal to a diameter of the bore, the first anchoring portion and the central portion extending distally into the handle; and attaching a cap to the handle under pressure, the cap contacting a proximal most surface of the valve and compressing the valve between the cap and the handle. - View Dependent Claims (15)
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Specification