An occludable venous catheter device includes a needle tube with a needle tube base; a venous catheter with a venous catheter base; a sealer, a front portion disposed inside a venous catheter lumen, a front end exposed out of a front-end opening; an occluding wire; an isolating element; a guide passage with a straight tube portion; a front-end opening connected to the venous catheter lumen; wherein the occluding wire is capable of entering the venous catheter lumen; the straight tube portion is coaxial with the venous catheter or is capable of moving in an externally-isolated manner to a position such that a central axis of the straight tube portion coincides with a central axis of the venous catheter; the occluding wire and the guide passage reach directly inside a chamber and are isolated from the outer environment.

A catheter system may include a needle assembly coupled to a catheter adapter. The needle assembly may include a housing, an introducer needle, a proximal opening, a distal opening, and a needle tip shield feature. A distal tip of the introducer needle may be configured to be proximally withdrawn from a first position to a second position in which a bump feature of the introducer needle contacts and is prevented from moving through the proximal opening. In response to withdrawal of the distal tip proximally from the second position to a third position, the housing may move proximally, and the needle tip shield feature may be released to block the distal opening. The needle tip shield feature may not contact the introducer needle when the distal tip moves proximally from the first position to the second position and from the second position to the third position, which may reduce a friction-based drag force on the introducer needle.

A manually-retractable intravenous infusion needle assembly, including a needle holder, a needle tube, a built-in slidable sheath and a protective casing, where the needle holder includes a tubular portion and a tailstock portion; a rear end of the needle tube is mounted inside the tubular portion; the built-in slidable sheath is through and elongated and has a C-shaped cross-section; the tubular portion is mounted inside the built-in slidable sheath and can slide back and forth; the protective casing is an elongated, through and hollow casing; the built-in slidable sheath is mounted inside the protective casing. A locking structure is provided between the needle holder and the protective casing.

A catheter system may include a needle assembly coupled to a catheter adapter. The needle assembly may include a housing, an introducer needle, a distal opening, a first magnet, and a second magnet. In response to proximal withdrawal of the introducer needle, the first magnet may move towards the second magnet, which may block the distal opening and/or prevent blood from leaking out the distal opening.

The present invention provides a needle tip protector of a novel structure for an indwelling needle, which enables improvements in safety, etc. as compared with conventional needle tip protectors. A needle tip protector 10 for an indwelling needle includes a tubular peripheral wall 58, and is externally attached over a needle hub 22 of an indwelling needle 16 and moved toward a needle tip 14 side so as to cover the needle tip 14. Detents 74, 74, which are to be detained with the needle hub 22 at a position in a movement of the protector toward the needle tip 14 side of the indwelling needle 16 so as to inhibit backward movement of the protector to the proximal end side of the indwelling needle 16 and to prevent the needle tip 14 from being reexposed, are formed within an inside enclosed by the peripheral wall 58, and are integrally molded with the peripheral wall 58.

A needle assembly for percutaneously infusing fluids to a body and/or withdrawing fluids from a body is provided. The needle assembly comprises a polymeric body having a passageway in a proximodistal direction. A wing assembly is secured to the body, and the wing assembly including first and second wings extending laterally in opposite directions from said body. A hollow needle is arranged in said passageway, such that it extends distally from said body, wherein said needle is press fitted or interference fitted in said passageway.

A vascular access system which may be configured for blood draw may include a housing, which may include a distal end, a proximal end, and a slot disposed between the distal end and the proximal end. The slot may include a notch. The vascular access system may include a cannula hub, which may be disposed within the housing and movable with respect to the slot. The cannula hub may include a tab extending through the slot. The vascular access system may include a cannula extending distally from the cannula hub. In response to the tab being disposed within the notch, a distal tip of the cannula may be disposed within the housing. In response to advancing the tab along the slot to a distal end of the slot, the distal tip of the cannula is disposed distal to the distal end of the housing.

Valve assemblies having improved ability to selectively control flow of fluids through the catheter and prevent leakage of fluids from the proximal end of a catheter that is positioned within a patient. Such improved catheter valve assemblies also prevent leakage of fluids after repeated insertion and removal of medical instruments through the valve.

A catheter system may include a catheter assembly, which may include a catheter adapter and a catheter extending from a distal end of the catheter adapter. The catheter system may include a needle assembly, which may include a barrel, a needle hub slidably disposed within the barrel, and an introducer needle secured within the needle hub and extending through the catheter. The needle assembly may also include a stop surface coupled to the barrel and an activation latch. The activation latch may be slidable from a first position to a second position with respect to the barrel. In response to the activation latch being in the first position, the stop surface may contact the activation latch and depression of the activation latch may be prevented. In response to sliding of the activation latch from the first position to the second position, the stop surface may not contact the activation latch, which may depress.

Disclosed herein is a catheter placement system with a stiffening system and associated methods thereof. The catheter placement system can include a needle, catheter (e.g. rapid insertion central catheter), one or more guidewires, and a stiffening system, configured to place the catheter while containing portions of the catheter placement system that contact the patient within a sterile environment. Advantageously, the catheter placement system can provide all tools necessary for accessing a vasculature, dilating the insertion site and placing the catheter within a single device, mitigating repeated insertion of multiple tools and reducing the risk of introducing pathogens or the like. Further, the overall time required to place the catheter is reduced, reducing patient down time and improving patient outcomes.