Catheter devices can have bendable extension legs. The extension legs may be designed to include armature wire that enables the extension legs to be bent into and to retain a variety of orientations. As a result, a clinician can easily position the luers of the extension legs into positions that are suitable for a particular patient and/or the clinician.

An infusion filter design combines a fluid infusion device and a blood filtration device that filter blood during a thrombolysis procedure while allowing for complete filter removal on procedure completion. In one embodiment, a wire comprises a proximal, non-infusible length that extends partially outside of the patient and within the vein. The wire further comprises an infusible length distally from the non-infusible length that is extends within the vein so as to be placed at the section of the vein requiring medication. The wire also comprises a distal filter component at a distal end of the wire that is employed to filter the blood in the event that during the period that clot is dissolved it migrates toward the central circulation.

A catheter assembly may include a catheter, a catheter hub coupled to the catheter, an injection port on the catheter hub, and an injection port backflow control device. The backflow control device may include a concentric port, a bellow, and a duckbill valve. The injection port backflow control device may include a split septum and a duckbill valve. The injection port backflow control device may include a deformable annular valve disposed around an inner surface of the catheter hub and may block an opening in the catheter hub connected to the injection port. The injection port may receive a needleless syringe for administration of medicine or other fluids. The injection port backflow control device may permit fluids to flow into the catheter hub and may prevent fluids from flowing out of the catheter hub through the injection port.

A catheter system may include a catheter assembly and a needle assembly. The needle assembly may include a cover disposed over a push button. An inner surface of the cover may include a projection, and the cover may be configured to slide proximally. In response to the cover sliding proximally, the projection may be configured to contact the push button, and the push button may be configured to depress. The push button may include a living hinge. The housing may include a flange contacting a proximal end of the push button to prevent the proximal end of the button from being depressed. In response to bending of the living hinge, the push button may be configured to move distal to the flange and depress. In response to depression of the push button, the needle hub may move proximally within the barrel to retract the introducer needle.

An elongated access device used in a medical system. The elongated access device slidably receives a medical tool and an ultrasound probe. The elongated access device includes a sheath and an intraluminal tip attached to the distal end of the sheath. The intraluminal tip includes ramp and nose donuts being spaced apart from one another and configured to be attached to one or more elongated sleeves. One or more orientation pins are engaged with the respective ramp and nose donuts and may be anchored within the sheath. The medical tool is engaged with a ramp formed in the ramp donut or a ramp received within the ramp donut. The ultrasound probe is configured to engage with the intraluminal tip so as to ensure that the medical tool directionality is oriented toward a target during a procedure.

A low profile catheter system includes a catheter hub with a stabilization surface that is located on an underside of the catheter hub and stabilizes the catheter hub on a patient. A substantially linear flow path extends from an opening at the distal end of the catheter hub to an inlet located within an intermediate portion of the catheter hub. The flow path allows fluid to flow between the distal end and the intermediate portion. The intermediate portion receives a base connector having a fluid path. The fluid path has a first opening and is fluidly connected to the inlet of the flow path in the catheter hub and a biasing member biases the first opening toward the inlet when the base connector is received by the intermediate portion.

An access port can be connected to a catheter and includes a port body including a liquid storage portion and a diaphragm body covering the liquid storage portion. The port body includes a connection passage connected to the liquid storage portion and allows the liquid storage portion to communicate with the inside of the catheter. In the cross-section along the axial direction of the connection passage at the connection position where the connection passage is connected to the liquid storage portion, the length in the direction perpendicular to the axial direction between the surface of the diaphragm body on the side opposite to the liquid storage portion and the inner surface of the liquid storage portion gradually decreases as it proceeds away from the connection position in the inclined region exceeding half of the liquid storage portion along the axial direction.

Introducer sheaths are described. In one embodiment, an introducer sheath comprises a sheath hub, a fixed housing coupled to the sheath hub, a rotating element rotatably coupled to the fixed housing, a sheath tube fixedly coupled to the rotating element, and a lock coupled to the rotating element. The lock is capable of preventing the rotating element and the sheath tube from rotating with respect to the sheath hub.

An intravenous catheter assembly comprising: a catheter tube; a catheter hub having a distal end and a proximal end, wherein the distal end is joined to the catheter tube and the proximal end defines a housing having inner space; a needle extending through the catheter hub and the catheter tube and defining an axial direction, wherein the needle has opposite proximal and distal ends, the distal end forming a needle tip; a needle hub attached to the proximal end of the needle; a needle guard slidably arranged on the needle, wherein the needle guard is movably retained in the housing of the catheter hub; a valve provided in the inner space in the catheter hub to prevent foreign contamination from entering the catheter hub; and a disc that is arranged proximal or distal to the valve or that is joint or linked to the valve.

A medical device, comprising a hub or housing having a push tab including a main portion extending radially from an upper surface of the hub or housing, and at least one anti-rotation feature for resisting rotation of the hub or housing. A cannula is directly or indirectly connected to the hub or housing. The medical device may be a catheter, the cannula may be a catheter tube, and the hub or housing may be a catheter hub or an introducer needle tip shield for the catheter.