A sensor module has an arterial catheter connection hub. The sensor module has a perfusion inflow hub coupled through an arterial/portal blood chamber to the arterial catheter connection hub. The sensor module has a venous catheter connection hub. The sensor module has an effluent outflow hub coupled through a venous blood chamber to the venous catheter connection hub. The sensor module has an arterial sensor to sense a parameter of an arterial fluid flowing through the arterial/portal blood chamber. The sensor module has a venous sensor to sense a parameter of a venous fluid flowing through the venous blood chamber. The sensor module has a processor coupled to the arterial sensor and the venous sensor to determine a relationship between the parameter sensed by the arterial sensor and the parameter sensed by the venous sensor.

An innovative medical device that permits rapid, minimally invasive restoration of blood flow across a vascular blockage. A system allowing for lysis or removal of said blockage. Said device creates a temporary bypass using longitudinal structure configured for insertion into the blood vessel and adapted to deliver a side hole to a target area. The side hole defines a distal first segment and a proximal second segment with a lumen to allow blood flow therethrough to the distal end hole. In an alternate embodiment, a slidable outer sheath can cover the side hole to permit reversal of blood flow from the distal end hole to a proximal end hole located outside a patient's body by means of an aspiration controller. Alternate embodiments include an optional anchoring balloon, a macerating stent or wires, perforations for fluid delivery, and an backflow valve.

An embodiment provides a method for normalizing cardiac venous return, including: inserting percutaneously a calibrated balloon catheter through a femoral vein; advancing the calibrated balloon catheter to the inferior vena cava; and placing a balloon portion of the calibrated balloon catheter at a location before the drainage point of the hepatic vein. Other aspects are described and claimed.

An innovative medical device that permits rapid, minimally invasive restoration of blood flow across a vascular blockage. A method employing said device, allowing for lysis or removal of said blockage. Said removal of said blockage is facilitated by either or both mechanical and energy-emission maceration. Said device creates a temporary bypass using longitudinal structure configured for insertion into the blood vessel and adapted to deliver a side hole to a target area. The side hole defines a distal first segment and a proximal second segment with a lumen to allow blood flow therethrough to the distal end hole. In an alternate embodiment, a slide-able outer sheath can cover the side hole to permit reversal of blood flow from the distal end hole to a proximal end hole located outside a patient's body by means of an aspiration controller. Alternate embodiments include an optional anchoring balloon, a macerating stent or wires, perforations for fluid delivery, and a backflow valve.

Venous infusion catheter assemblies and methods of use are described herein. A catheter assembly may comprise an elongated body having a proximal end and a distal end, with an expandable occlusion element disposed on the elongated catheter body. A catheter may include a first infusion lumen extending to a proximal infusion port positioned on the catheter body proximally of the occlusion element and a second infusion lumen extending to a distal infusion port. Some embodiments may use a suction lumen extending to at least one suction port. When the catheter is introduced into vasculature of a patient, the suction port may be positioned in the patient's superior vena cava or right atrium to draw blood, the distal infusion port is positioned to direct normothermic or hyperthermic fluid toward the patient's heart, and the proximal infusion port is positioned to create a flow of hypothermic fluid in the patient's cerebral vasculature.

A balloon catheter includes a balloon coupled to a shaft. The shaft includes a proximal perfusion portion disposed proximal of the balloon and a distal perfusion portion disposed distal of the balloon. The proximal and distal perfusion portions each are formed by a respective plurality of wire members woven together to form a respective proximal and distal braided shafts. The plurality of wire members are woven together such that a plurality of perfusion openings are formed between the wire members. The plurality of perfusion openings extend from an outer surface of the respective proximal or distal braided shaft to a lumen of the respective proximal or distal braided shaft. A perfusion lumen extends between the proximal perfusion portion and the distal perfusion portion.

A reperfusion catheter for controlled reperfusion in an occluded artery is disclosed. A tubular perfusion catheter (12) has a proximal a distal end and a lumen defined in between said ends. The catheter (12) has a dilatator (13) which is sized and shaped to move telescopically in its lumen. The tubular perfusion catheter (12) has at least one perfusion port (16) which, in use, allows, antegrade blood flow to enter the lumen of the perfusion catheter (12). The at least one perfusion port (16) extends in the longitudinal direction of the perfusion catheter (12) such that, in use, full or partial withdrawal of the dilatator (13) out of the lumen of the perfusion catheter (12) permits controlled flow of blood through said perfusion port (16) and out of the distal end of the tubular perfusion catheter.

An innovative medical device that permits rapid, minimally invasive restoration of blood flow across a vascular blockage. A method employing said device, allowing for lysis or removal of said blockage. Said device creates a temporary bypass using longitudinal structure configured for insertion into the blood vessel and adapted to deliver a side hole to a target area. The side hole defines a distal first segment and a proximal second segment with a lumen to allow blood flow therethrough to the distal end hole. In an alternate embodiment, a slidable outer sheath can cover the side hole to permit reversal of blood flow from the distal end hole to a proximal end hole located outside a patient's body by means of an aspiration controller. Alternate embodiments include an optional anchoring balloon, a macerating stent or wires, perforations for fluid delivery, and a backflow valve.

An innovative medical device that permits rapid, minimally invasive restoration of blood flow across a vascular blockage. A system allowing for lysis or removal of said blockage. Said device creates a temporary bypass using longitudinal structure configured for insertion into the blood vessel and adapted to deliver a side hole to a target area. The side hole defines a distal first segment and a proximal second segment with a lumen to allow blood flow therethrough to at least one distal end hole. Said device includes at least one semi-permeable membrane which may act as a filter that located circumferentially around outer surface of at least one of said device segments. In an alternate embodiment, a slidable outer sheath can cover the side hole to permit reversal of blood flow from the distal end hole to a proximal end hole located outside a patient's body by means of an aspiration controller. Alternate embodiments include an optional anchoring balloon, a macerating stent or wires, perforations for fluid delivery, and a backflow valve.

The invention relates to a method to prevent contrast-induced nephropathy during an imaging procedure. The method includes the step of positioning balloon catheters in a patient's renal arteries and inflating the balloons of each catheter to block the flow of contrast media into the patient's kidneys.