Catheter assembly and components thereof
DC CAFCFirst Claim
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1. A safety catheter assembly comprising:
- a first hub comprising an interior cavity, an opening at a proximal end, and a catheter tube having a distal end opening extending distally of the first hub, the opening at the proximal end having a Luer taper;
a needle having a needle shaft defining a needle axis projecting distally of an end of a second hub, said needle projecting through the catheter tube and comprising a needle tip;
a valve for obstructing fluid flow positioned inside the interior cavity of the first hub;
a valve actuating element slidingly disposed in the first hub for actuating the valve; and
a third hub positioned between the first hub and the second hub having a needle protective device positioned therein in a ready position in which the needle tip is exposed and sized and shaped to prevent unintended needle sticks in a protective position; and
wherein the protective device is made from a metallic component.
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Accused Products
Abstract
Catheter assemblies are generally discussed herein with particular discussions extended to catheter assemblies having a tip protector, a valve, a valve opener, and optionally a needle wiper. The valve opener is disposed inside a catheter hub and is configured to be pushed by an IV set luer connector to open a valve following successful catheterization to pass fluids or other solutions through the catheter. A tip protector is incorporated to block the needle tip and prevent the same from accidental needle stick. A wiper is optionally included to wipe blood deposits from the needle when the same is retracted from the catheter.
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Citations
30 Claims
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1. A safety catheter assembly comprising:
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a first hub comprising an interior cavity, an opening at a proximal end, and a catheter tube having a distal end opening extending distally of the first hub, the opening at the proximal end having a Luer taper; a needle having a needle shaft defining a needle axis projecting distally of an end of a second hub, said needle projecting through the catheter tube and comprising a needle tip; a valve for obstructing fluid flow positioned inside the interior cavity of the first hub; a valve actuating element slidingly disposed in the first hub for actuating the valve; and a third hub positioned between the first hub and the second hub having a needle protective device positioned therein in a ready position in which the needle tip is exposed and sized and shaped to prevent unintended needle sticks in a protective position; and wherein the protective device is made from a metallic component. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A catheter assembly comprising:
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a catheter hub comprising a housing comprising an exterior surface and an interior surface defining a cavity having an opening for receiving a Luer connector and a catheter tube extending distally of the catheter hub; a needle hub comprising a housing having a needle having a needle tip attached thereto projecting distally of the housing and into the catheter tube; a valve for limiting blood backflow positioned in the interior cavity of the catheter hub in a ready position in which the needle tip extends distally of a distal opening of the catheter tube and after the needle is removed from the catheter hub; and a third housing located between the catheter hub and the needle hub enclosing a tip protector for blocking the needle tip in a protective position, said valve and said third housing are movable relative to one another. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A safety catheter assembly comprising:
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a catheter hub comprising a housing comprising an exterior surface and an interior surface defining an interior cavity;
said catheter hub having a catheter tube attached to a distal end of the catheter hub and the catheter tube comprising a distal opening;a needle hub having a needle with a needle tip attached to the needle hub and projecting distally of the needle hub and into the catheter tube with the needle tip extending out the distal opening of the catheter tube; a valve for limiting fluid flow and a valve opener in cooperative arrangement therewith positioned in the interior cavity of the catheter hub; a safety device for covering the needle tip comprising a tip protector housing having a housing section positioned proximally of a proximal end of the catheter hub; and wherein the valve opener comprises two proximally extending legs having a gap therebetween, the two proximally extending legs being sized and shaped to be pushed distally towards the valve to transfer a force imparted by a male Luer to the valve. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24)
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25. A safety catheter assembly comprising:
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a catheter hub comprising a housing comprising an exterior surface and an interior surface defining an interior cavity having an interior shoulder and an open proximal end; a catheter tube attached to a distal end of the catheter hub and having a distal opening; a needle hub having a needle with a needle tip attached to the needle hub and projecting distally of the needle hub and into the catheter tube with the needle tip extending out the distal opening; a valve for limiting fluid flow and a valve opener in cooperative arrangement therewith positioned in the interior cavity of the catheter hub, said valve opener comprising a projection abutting the interior shoulder of the catheter hub; a safety device for covering the needle tip comprising a tip protector housing having a housing section positioned proximally of the catheter hub and a projection positioned at least in part in the open proximal end of the catheter hub; and at least two proximally extending legs having a gap therebetween of the valve opener being sized and shaped to be pushed distally to transfer a distally directed force to the valve to open one or more slits on the valve. - View Dependent Claims (26, 27, 28, 29, 30)
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Specification