An object is to provide a catheter and a branched connector that can improve sealing properties and have high versatility. In a branched connector 40 used in a catheter 100, the branched connector 40 comprises a first end portion 44 to which a catheter main body 10 is attached and having a first hole portion 43 communicating with the catheter main body 10 being formed at the first end portion 44, and a second end portion 49 including an elastic member and having a second hole portion 48 for inserting a wire-like instrument 20 being formed in the elastic member, and the second hole portion 48 communicates with the first hole portion 43 and has a flow passage area smaller than a flow passage area of the first hole portion 43.

Medical devices and methods for delivering fluid. The medical devices include one or more needles for delivering fluid. The methods may optionally include expanding an expandable member such as an inflatable member to expand an expandable scaffold outward toward a lumen wall. The devices may include one or both of one or more spine securing members or one or more needle alignment members.

Provided herein is a catheter assembly, including a catheter adapter having a proximal end, a distal end, and a lumen extending along a first longitudinal axis therebetween, a catheter extending from the distal end of the catheter adapter, a dressing comprising a proximal end, a distal end, and first and second sides extending therebetween, the dressing defining a second longitudinal axis and configured to cover at least a portion of the catheter adapter at a site of penetration into a patient's vasculature, the dressing further comprising an upper surface and a lower surface, the lower surface configured to contact skin of a patient, and a tourniquet configured to apply a radially-inward pressure to a limb of a patient near the site of penetration, the tourniquet configured to couple with the dressing.

An integrated peripheral intravenous (IV) catheter configured for blood draw both at the time of catheter placement and during catheter indwell. The peripheral IV catheter includes a catheter adapter having a catheter configured to be inserted into a patient's vasculature and a side inlet defining a fluid pathway into and out of the catheter. The peripheral IV catheter also includes a side port member having a main branch, the main branch including a distal end configured to couple the side port member to the side inlet of the catheter adapter and a connector portion accessible via a proximal end of the main branch. Additionally, the peripheral IV catheter includes a blood collection adapter removably and directly coupled to the connector portion of the side port member at the proximal end of the main branch. Furthermore, side pore member of the peripheral IV catheter may include a side branch.

Balloon/infusion catheters comprise internal corewires within a single lumen structure in which the corewire can slide relative to the catheter tube within limits, and the balloon is attached to the catheter tube on one end and to the sliding corewire on the other end. The lumen provides fluid to inflate the balloon and to infuse fluid into the vessel proximal to the balloon. The infusion ports can have a polymer valve to limit infusion to lumen pressures at which the balloon is appropriately inflated. The balloon/infusion catheter can have an integral flow meter near its proximal end. Corresponding methods for use of the balloon/infusion catheter are described, such as for the delivery of hydraulic forces when used in conjunction with an aspiration catheter.

Some embodiments of a medical anchor device include an elongate body coupled with deployable subcutaneous anchors to secure a catheter instrument (or other medical instrument) in place relative to a skin penetration point. In some circumstances, the elongate body may be in the form of catheter hub body, and the subcutaneous anchors can be deployed from the hub body by adjustment of a movable actuator. A locking member can interact with the actuator so as to retain the actuator in the deployed orientation during the medical procedure.

A hub for an optical shape sensing reference includes a hub body (606) configured to receive an elongated flexible instrument (622) with a shape sensing system coupled to the flexible instrument within a path formed in the hub body. A profile (630) is formed in the hub body in the path to impart a hub template configured to distinguish a portion of the elongated flexible instrument within the hub in shape sensing data. An attachment mechanism (616) is formed on the hub body to detachably connect the hub body to a deployable instrument such that a change in a position of the hub body indicates a corresponding change in the deployable device.

A catheter system includes a catheter including an elongate body having an expandable medical device coupled with a distal end thereof, and an introducer sheath assembly disposed over a proximal section of the catheter. The introducer sheath assembly includes an introducer sheath disposed over the catheter to form a gap therebetween, and a tubular plug. The introducer sheath includes an elongate body extending from a proximal end to a distal end and defining a lumen therein. The tubular plug extends through the lumen and includes an elongate body extending from a proximal end to a distal end that protrudes from the introducer sheath distal end. The plug is disposed between the catheter and the introducer sheath to occlude the gap. The plug is releasably fixed relative to the introducer sheath such that the plug is removable from the lumen to allow the expandable medical device to pass therethrough.

A catheter system may include a catheter adapter, which may include a distal end and a proximal end aligned with the distal end. The catheter system may include a catheter extending from the distal end of the catheter adapter. The catheter system may include an extension set, which may include a distal end, which may include a first connector coupled to the proximal end of the catheter adapter. The extension set may include a second connector and an extension tube disposed between the first connector and the second connector. The catheter, the catheter adapter, the first connector, the extension tube, and the second connector may be in fluid communication. The catheter system may include a stabilization platform disposed below the first connector.

A vascular access device may include a housing, which may include a distal end, a proximal end, and a slot. An advancement element may extend through the slot and may be configured to move linearly along the slot between a retracted position and an advanced position. In response to movement of the advancement element from the retracted position to the advanced position, a probe of the vascular access device may be advanced beyond the distal end. The vascular access device may include one or more features to reduce buckling of the probe and limit displacement of the probe. For example, the vascular access device may include a protrusion fixed within the housing distal to the advancement element. As another example, the vascular access device may include a distally-extending arm and/or a recess configured to receive the distally extending arm.