Catheter insertion device
DC CAFCFirst Claim
1. A catheter insertion device comprising:
- a catheter hub comprising an interior cavity, an opening at a proximal end, and a catheter tube attached thereto and extending from a distal end;
a needle having a needle shaft defining a needle axis projecting distally of an end of a needle hub, said needle projecting through the catheter tube and comprising a needle tip;
a valve sized and shaped to obstruct fluid flow comprising a wall surface comprising a slit positioned inside the interior cavity of the catheter hub and in contact with the interior cavity;
said valve remaining inside the interior cavity when the needle is removed from the catheter tube and the catheter hub and abuts a shoulder formed in the interior cavity of the catheter hub;
a valve actuating element slidingly disposed in the catheter hub to actuate the valve, the valve actuating element comprising a nose section having a tapered end for pushing the valve to open the slit of the valve and a plunger end having at least two plunger elements extending proximally of the nose section and having a gap therebetween to permit fluid flow to flow therethrough;
the two plunger elements being sufficiently rigid to transfer a distally directed force to the nose section to push the valve to open the slit;
a needle protective device spaced from the needle tip in a ready position and movable relative to the needle tip to a protective position, at least in part, distally of the needle tip to prevent unintended needle sticks.
2 Assignments
Litigations
1 Petition
Accused Products
Abstract
Embodiments of a catheter insertion device are discussed comprising: an approximately hollow cylindrical catheter sleeve, at whose distal end a catheter is attached: a needle sleeve with a hollow needle, which is attached thereto and which, when ready for use, extends through the catheter sleeve and the catheter, and; a needle protective element that is arranged inside the catheter sleeve while being able to move on the needle. Said needle protective element has an engaging section that engages with an engaging device, which is formed in the vicinity of the needle tip, when the hollow needle is withdrawn from the catheter sleeve. A check valve is placed inside the catheter sleeve between the catheter and the needle protective element. The hollow needle, when ready for use, extends through said check valve, and the check valve automatically closes once the needle is withdrawn.
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Citations
29 Claims
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1. A catheter insertion device comprising:
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a catheter hub comprising an interior cavity, an opening at a proximal end, and a catheter tube attached thereto and extending from a distal end; a needle having a needle shaft defining a needle axis projecting distally of an end of a needle hub, said needle projecting through the catheter tube and comprising a needle tip; a valve sized and shaped to obstruct fluid flow comprising a wall surface comprising a slit positioned inside the interior cavity of the catheter hub and in contact with the interior cavity;
said valve remaining inside the interior cavity when the needle is removed from the catheter tube and the catheter hub and abuts a shoulder formed in the interior cavity of the catheter hub;a valve actuating element slidingly disposed in the catheter hub to actuate the valve, the valve actuating element comprising a nose section having a tapered end for pushing the valve to open the slit of the valve and a plunger end having at least two plunger elements extending proximally of the nose section and having a gap therebetween to permit fluid flow to flow therethrough;
the two plunger elements being sufficiently rigid to transfer a distally directed force to the nose section to push the valve to open the slit;a needle protective device spaced from the needle tip in a ready position and movable relative to the needle tip to a protective position, at least in part, distally of the needle tip to prevent unintended needle sticks. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A catheter insertion device comprising:
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a first hub comprising an interior cavity having a shoulder, a perimeter defining an opening at a proximal end, and a catheter tube having a distal end opening extending distally of the first hub; 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 sized and shaped to obstruct fluid flow comprising a plurality of slits positioned inside the interior cavity of the first hub and having a distal surface pushed against a shoulder in the interior cavity;
said valve remaining inside the interior cavity when the needle is removed from the catheter tube and the first hub;a valve actuating element slidingly disposed in the first hub to actuate the valve, the valve actuating element comprising a nose section having a tapered end with an opening structured to push the valve to open the plurality of slits and at least two plunger elements extending proximally of the nose section and having a gap therebetween;
wherein the at least two plunger elements with the gap therebetween are disposed distally of the proximal end of the first hub and are slidable distally when a male implement projects into the opening of the first hub to transfer a distally directed force to the nose section to push the valve to open the plurality of slits;a needle protective device positioned proximal of the valve and at least in part around the needle and distal of the proximal end of the second hub in a ready position, the needle protective device movable to prevent unintended needle sticks in a protective position. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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17. A catheter insertion device comprising:
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a catheter hub comprising an interior cavity comprising a shoulder, an opening at a proximal end, and a catheter tube attached thereto and extending from a distal end; a needle having a needle shaft defining a needle axis projecting distally of an end of a needle hub, said needle projecting through the catheter tube and comprising a needle tip; a valve having a generally round outer contour sized and shaped to obstruct fluid flow positioned inside the interior cavity of the catheter hub;
said valve remaining inside the interior cavity of the catheter hub when the needle is removed from the catheter tube and the catheter hub;a valve actuating element slidingly disposed in the catheter hub for actuating the valve, the valve actuating element comprising a nose section having a tapered end being sufficiently rigid to open the valve, a projection on the valve actuating element located proximally of the tapered nose section abutting the shoulder of the catheter hub, and a plunger end extending proximally of the nose section having one or more gaps to permit fluid flow to flow therebetween and to transfer a distally directed force to the nose section to open the valve; a needle protective device positioned, at least in part, around the needle between the valve and the proximal end of the needle hub in a ready position, the needle protective device being moveable to prevent unintended needle sticks in a protective position. - View Dependent Claims (18, 19, 20, 21, 22, 23)
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24. A catheter insertion device comprising:
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a catheter hub comprising an interior cavity comprising a shoulder, an opening at a proximal end, and a catheter tube attached thereto and extending from a distal end; a needle having a needle shaft defining a needle axis projecting distally of an end of a needle hub, said needle projecting through the catheter tube and comprising a needle tip; a valve comprising one or more slits movable to obstruct fluid flow positioned inside the interior cavity of the catheter hub;
said valve remaining inside the interior cavity of the catheter hub when the needle is removed from the catheter tube and the catheter hub;a valve actuating element slidingly disposed in the catheter hub for opening the one or more slits and actuating the valve, the valve actuating element comprising a nose section having a tapered end made of a sufficiently rigid material to open the valve and a plunger end extending proximally of the nose section having at least one gap to permit fluid flow to flow thereacross and to transfer a distally directed force to the nose section to open the valve, said plunger end being provided at the opening of the catheter hub for pushing by a medical implement; a needle protective device positioned, at least in part, around the needle between the valve and the proximal end of the needle hub in a ready position, the needle protective device being moveable to prevent unintended needle sticks in a protective position. - View Dependent Claims (25, 26, 27, 28, 29)
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Specification