Disclosed herein is a bidirectional intravascular cannula, or catheter, that is configured to provide and return blood in a patient bidirectionally. The bidirectional intravascular cannula is configured to reduce or obviate the need for a second cannula, such as currently available unidirectional cannulae, to be placed in a second or opposite direction of flow. Users would include cardiac surgeons, intensivists, vascular surgeons, ER doctors, IR doctors and cardiologist who use peripheral cannulation for ECLS or cardiopulmonary bypass. The cannula allows continued flow to a patient's limb even with the cannula proximally in the vessel. The cannula further allows larger size cannula to be placed without the need for additional distal catheter placement.

An intermittent urinary catheterisation assembly (1) comprising an intermittent urinary catheter (3) comprising a conduit (11) extending longitudinally within the tube. The assembly further comprises a measuring system (4) configured to measure at least a pressure in the conduit and/or in a space in communication with the conduit. The measuring system comprises at least one valve element (37) in fluid communication with the conduit when the signal processing device is secured in relation to the intermittent urinary catheter. A cut-off element (41) configured to switch from a closed state to an open state. The measuring system further comprises at least one sensor element configured to measure a parameter indicative of the pressure applied to the cut-off element when the cut-off element switches from the closed state to the open state.

A catheter system may include a catheter adapter, a catheter extending distally from the catheter adapter, an introducer needle extending through the catheter, a flash chamber in fluid communication with a needle lumen of the introducer needle, and a seal element. The introducer needle may include a wall defining the needle lumen, a first notch formed through the wall, and a second notch formed through the wall. The seal element may be proximal to the first notch and the second notch and within the catheter between an outer surface of the introducer needle and an inner surface of the catheter. The seal element may prevent priming fluid from travelling distal to the seal element. The seal element in conjunction with the first notch, the second notch, and the flash chamber may facilitate pressure-driven blood flow into the catheter for detection of flashback and transfixing when priming occurs prior to insertion into vasculature.

A urinary catheter drainage member (410), comprising: a body (417) having a proximal end, a distal end and a lumen extending therethrough, the proximal end being configured to be located at the distal end of a catheter such that the lumen of the body is in fluid communication with a drainage lumen of the catheter, the distal end of the body defining an opening for urine drainage; the body being configured to selectively restrict urine drainage from the opening

A balloon catheter has a central tube that is configured to both structurally support and inflate a balloon membrane. The central tube has a lumen and sidewall inflation ports that provide a path for inflating the balloon. The lumen of the central tube is obstructed by a distal end piece, nose piece, or other structure to prevent fluid from exiting a distal end of the central tube. The central tube is configured such that, during inflation, inflation media is allowed to pass through an elongated shaft of the catheter, into a proximal open end of the central tube, and through the inflation ports into the balloon. The central tube can slide longitudinally in relation to the shaft to longitudinally elongate and/or truncate the balloon.

A catheter system may include a catheter assembly, a fluid storage unit, and fluid. The catheter assembly may include a catheter hub, a catheter, an extension tube, and an adapter. The catheter hub may include a distal end, a proximal end, a lumen extending between the distal end and the proximal end, and a side port. The catheter may extend distally from the distal end of the catheter hub. A distal end of the extension tube may be coupled to the side port. The adapter may be coupled to a proximal end of the extension tube. The fluid storage unit may be coupled to the adapter and may include a reservoir, a barrier, and an actuator. The fluid may be disposed within the reservoir. In response to breach of the barrier by the actuator, the reservoir may be in fluid communication with the lumen of the catheter hub.

A catheter system may include a catheter assembly, a fluid storage unit, and fluid. The catheter assembly may include a catheter hub, a catheter, an extension tube, and an adapter. The catheter hub may include a distal end, a proximal end, a lumen extending between the distal end and the proximal end, and a side port. The catheter may extend distally from the distal end of the catheter hub. A distal end of the extension tube may be coupled to the side port. The adapter may be coupled to a proximal end of the extension tube. The fluid storage unit may be coupled to the adapter and may include a reservoir, a barrier, and an actuator. The fluid may be disposed within the reservoir. In response to breach of the barrier by the actuator, the reservoir may be in fluid communication with the lumen of the catheter hub.

A sheath assembly for the insertion of a percutaneous pump includes a tubular sheath body dimensioned for insertion into a blood vessel through a vessel aperture. The tubular sheath body includes a wall having a proximal end portion, a distal end portion, a longitudinal axis, an outer surface, an inner surface defining a first lumen substantially parallel to the longitudinal axis, and a second lumen disposed within the wall between the inner surface and the outer surface and extending from the proximal end portion to the distal end portion. The first lumen is dimensioned to allow passage of a portion of the percutaneous pump, and the second lumen is dimensioned for passage of a guidewire. A stylet is removably positioned to substantially occlude the second lumen. The stylet has a proximal end releasably secured to the sheath assembly.

The present teachings may generally include a sealing device disposed within a connector (e.g., a patient connector) at the end of catheter tubing, where the sealing device is structurally configured to form a releasable seal for the catheter tubing. That is, when unengaged with a contact portion of another connector or device, the sealing device may be disposed in a first position establishing a seal. Specifically, a channel disposed through the body of the sealing device may be obstructed when in this first position. However, through predetermined engagement with a contact portion of another connector or device, the sealing device may be moved (e.g., rotated) to a second position to establish a fluid pathway through the channel. And, when this predetermined engagement is removed, the sealing device may be structurally configured to automatically move back into the first position to reestablish the seal for the catheter tubing.

A patency system for maintaining a patency of an indwelling medical device including an elongated shaft configured to be at least partially received within a portion of the indwelling medical device, and at least one cleaner configured to at least partially dislodge debris formed within the indwelling medical device.