Compressible cannula valve
First Claim
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1. A compressible cannula valve comprising:
- a housing having a housing wall around a cavity and a housing opening;
a cannula having a base, a cannula tip extending within the cavity from the base toward the housing opening, and a lumen extending from the base to a radially oriented opening on a side of the cannula below the cannula tip; and
a resiliently compressible valve surrounding the cannula and having a valve tip, a shoulder, and a protrusion, the shoulder extending radially toward the housing wall and, when in a sealed position, the protrusion extending radially into the radially oriented opening;
wherein, in the sealed position, the shoulder and the protrusion are axially aligned with the radially oriented opening, and the cannula tip extends through the valve to be flush with an outer surface of the valve tip.
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Abstract
A needleless valve system includes a cannula comprising a cannula tip; a valve comprising a valve tip, wherein the valve is disposed around the cannula; and a housing comprising a housing tip, wherein the cannula tip, the valve tip, and the housing tip comprise a flat surface when the needleless valve system is in a sealed position.
16 Citations
20 Claims
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1. A compressible cannula valve comprising:
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a housing having a housing wall around a cavity and a housing opening; a cannula having a base, a cannula tip extending within the cavity from the base toward the housing opening, and a lumen extending from the base to a radially oriented opening on a side of the cannula below the cannula tip; and a resiliently compressible valve surrounding the cannula and having a valve tip, a shoulder, and a protrusion, the shoulder extending radially toward the housing wall and, when in a sealed position, the protrusion extending radially into the radially oriented opening; wherein, in the sealed position, the shoulder and the protrusion are axially aligned with the radially oriented opening, and the cannula tip extends through the valve to be flush with an outer surface of the valve tip. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method for controlling fluid flow in a compressible cannula valve, the method comprising:
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providing (i) a housing having a housing wall around a cavity and a housing opening, (ii) a cannula having a base, a cannula tip extending within the cavity from the base toward the housing opening, and a lumen extending from the base to a radially oriented opening on a side of the cannula below the cannula tip, (iii) providing a resiliently compressible valve surrounding the cannula and having a valve tip, a shoulder, and a protrusion, the shoulder extending radially toward the housing wall and, when in a sealed position, the shoulder and the protrusion are axially aligned with the radially oriented opening and the protrusion extends radially into the radially oriented opening, and the cannula tip extends through the valve to be flush with an outer surface of the valve tip; and opening the compressible cannula valve by axially depressing the valve such that the shoulder and the protrusion are urged away from the radially oriented opening, thereby allowing a fluid to flow through the radially oriented opening. - View Dependent Claims (11, 12, 13, 14, 15, 16)
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17. A compressible cannula valve comprising:
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a housing having a housing wall around a cavity and a housing opening; a cannula having a base, a cannula tip extending within the cavity from the base toward the housing opening, and a lumen extending from the base to a radially oriented opening on a side of the cannula below the cannula tip; and a resiliently compressible valve having a valve tip, a shoulder extending radially toward the housing wall, and a protrusion, when in a sealed position, extending radially into the radially oriented opening, wherein the valve tip is positioned between the cannula tip and an inner surface of the housing wall, and the shoulder and the protrusion are configured to be axially aligned with the radially oriented opening when the cannula tip is in the sealed position extending through the valve to be flush with an outer surface of the valve tip. - View Dependent Claims (18, 19, 20)
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Specification