A coaxial multilumen annulus plane catheter, including an outer pigtail catheter enclosing one or two additional lumens, each housing either a slidable shaped wire or a second pigtail catheter shaped to fit into a wide range of annulus diameters and/or depths. In embodiments, the device may include a catheter delivery handle with thumb/finger-actuated sliders that extend or retract the shaped wires and are sized to enable side-to-side or radial motion, imparting a torque to the pre-shaped wires which translates the length of the wires to enable individually controlled rotation or sweep of each wire to accommodate different annulus diameters. The delivery handle includes hemostasis controls and flush ports. In other embodiments, a handle is obviated by direct lumen axial and rotational control at a proximal end.

A multi lumen catheter assembly. The assembly provides an expandable, low profile, fixed length sheath and catheter, with fixed infusion ports. The assembly has an expandable outer sheath that expands upon pressure activation with a fluid and the sheath allows the fluid to exit from at least one predetermined fixed location from a distal end of the catheter assembly. The catheter assembly can be used in various medical device procedures, such as a TIPS (Transjugular Intrahepatic Portosystemic Shunt) procedure, or anywhere a low profile, multi lumen, infusion catheter system is desired.

A robotic system comprises an instrument including proximal distal sections. The distal section comprises a steerable segment and a distal tip. The instrument also includes a main lumen and a pull wire. The system also comprises a sensor to detect a position of the distal tip of the instrument and a computing device that causes the system to record a position of a working configuration of the distal tip, determine, based on a sensor signal, a movement of the distal tip in response to insertion of a probe into the main lumen, and generate a control signal based on the determined movement. The system also comprises a drive interface connected to the pull wire at the proximal section of the instrument. The drive interface adjusts a tensioning of the pull wire based on the control signal to return the distal tip towards the working configuration recorded before the movement occurred.

A thrombectomy catheter includes a catheter body having a catheter lumen. An outflow orifice is positioned along a catheter perimeter. A fluid jet emanator communicates with a high pressure tube. The fluid jet emanator includes at least one jet orifice for directing a fluid jet from the fluid jet emanator through the catheter lumen toward the outflow orifice. The fluid jet emanator provides a jet stream from the catheter body through the outflow orifice. The jet stream includes first and second stream portions. An entrainment fluid flow circuit includes at least the first stream portion, and the entrainment fluid flow circuit entrains particulate and macerates the particulate therein. An exhaust fluid flow path includes the second stream portion, and the exhaust fluid flow path draws entrained particulate from the entrainment fluid flow circuit at a location exterior to the catheter body and directs it toward the catheter proximal portion.

A delivery system for an intracorporeal device includes a sheath defining one or more lumens shaped to receive a delivery catheter or shaft and a guidewire. The system may include a delivery shaft having a distal coupling feature adapted to releasably couple with a proximal coupling feature of the intracorporeal device. The delivery system may further include a hub through which the delivery shaft and guidewire are passed. The delivery shaft may be coupled to a feature, such as a knob, that enables manipulation of the delivery shaft to decouple the distal fixation feature from the proximal fixation feature of the intracorporeal device in order to deploy the intracorporeal device within a patient.

The invention comprises an indwelling medical device which is capable of delivering a therapeutic agent evenly along the length of the indwelling portion, including the outer wall, of the device.

A medical device to be inserted in a defect blood vessel, body cavity, or body duct for treatment thereof is disclosed, wherein it comprises an essentially cylindrically formed elongated resilient sheath device (2) wherein it has a distal end (3) and a proximal end (4), wherein said sheath device (2) along its circumferential surface in the axial direction is provided with a slotted opening (5) having connection with a first bore (6) arranged in the axial direction of said sheath device (2), said first bore (6) having the ability to house an elongated fiber body (7), wherein said sheath device (2) has the ability to be clamped around a major part of the perimeter of said fiber body (7), and wherein said sheath device (2) in its axial direction also is provided with a second bore (8) having the ability to house an injection means (9), as well as a kit containing said medical device, and a method for treatment of defective blood vessels, body cavities, and body ducts by use of said medical device.

Methods for cerebral cooling are described. Cooling assemblies include elongate tubular members, a reservoir containing a pressurized fluid, and a manifold connecting the reservoir and elongate tubular members. After insertion of the elongate tubular members into the patient's nostrils, a pressurized fluid is delivered onto a surface of the patient's nasal cavity through a plurality of ports in the elongate tubular members. The delivery of the fluid causes cooling by direct heat transfer through the nasopharynx and hematogenous cooling through the carotids and the Circle of Willis.

A hemodialysis catheter with an integrated means of displacing away from each other portions of a distal end of a tube assembly. The displacement serves to allow a fibrous sheath to be disrupted without removing the catheter from a patient.

A hemodialysis device is described herein. An exemplary hemodialysis device includes an import tube, a dialysis tube, and an export tube. The dialysis tube includes an inner dialysis tube, a dialysis membrane and an outer dialysis tube. The inner dialysis tube is within the dialysis membrane, which is within the outer dialysis tube. An inlet and an outlet of the inner tube are disposed at a first end of the outer dialysis tube. The inlet of the inner dialysis tube is coupled to the import tube and the outlet of the inner dialysis tube is coupled to the export tube. The dialysis tube is inserted into an artery of a patient, and thereby performs hemodialysis within the body. Since the hemodialysis in performed within the artery instead of drawing blood out of the body, the hemodialysis device will minimally affect blood pressure, which is more economic and safe.