A system for delivering a fluid to a Eustachian tube (ET) of a patient includes a guide member and a tubular member. The guide member includes a shaft having a proximal portion, a distal portion, and a bend at the distal portion. The bend is configured to provide access to an opening in the ET. The system further includes a tubular member comprising a proximal end, a distal end, and a lumen extending therebetween. The tubular member is sized to fit within the ET. One or both of the tubular member and the guide member comprises a first stop member configured to engage the other of the tubular member or the guide member. The first stop member is configured to restrict a distal advancement of the tubular member relative to the guide member.

Catheters for debonding fouling agents from an interior surface thereof and related methods are disclosed. According to an aspect, a catheter includes a lumen defining a flexible, interior surface that extends substantially along a length of the lumen for contacting a biological material. The catheter also includes cavities extending along the length and positioned within the lumen adjacent to the surface. The cavities each define a cavity opening. The catheter also includes an inflation hub defining hub openings connected to respective cavity openings. The inflation hub defines a pump port configured to interface with a pump. The inflation hub defines one or more fluid pathways that extend between the hub openings and the pump port for permitting flow of gas between the pump and the cavities.

A device for providing access to a nodule, lesion, or pathological area in a lung or other body organ or lumen. The device includes a sheath portion having a proximal end and a distal end and a plurality of stabilization wires. The sheath portion includes a primary lumen that extends from the proximal end to the distal end and a plurality of secondary lumens that extend from the proximal end to the distal end. The stabilization wires are configured to be slidably received within the secondary lumens. The length of the stabilization wires is greater than the length of the secondary lumens.

Methods and systems for determination of flow parameters of administered fluid from a radioembolization delivery device may include translationally moving a device delivery arm of the radioembolization delivery device in a translational direction, wherein the device delivery arm is coupled to a syringe holder such that move in the translational direction one of proximally or distally advances the syringe holder; sensing, via one or more pattern sensors, a corresponding movement of a pattern associated with the translational device delivery arm movement as a sensed pattern movement; generating, via the one or more pattern sensors, one or more output signals based on the sensed pattern movement; and generating, via a processor, a flow rate of the administered fluid, a flow amount of the administered fluid, and/or the translational direction of movement of the device delivery arm with respect to the syringe holder based on the one or more output signals.

The present invention relates to a methodology of, and an apparatus for, performing multiple interventions within the biliary tree without requiring multiple catheter exchanges. The device consists of a flexible elongate tube, introduced through an endoscope, having a proximal end towards the operator and a distal end directed towards a body lumen. The exposed part of an electrosurgical cutting wire near the distal end is used to cut the sphincter of Oddi. Two lumens extend from the proximal to the distal end, one configured to accept a guidewire, and the other to allow contrast injection. In some renderings, a single lumen may serve both functions. Another lumen extends from the proximal end to a dilator balloon housed distally on the catheter to further widen the biliary orifice. An additional lumen extends from the proximal end to an extractor balloon near the distal end of the catheter for stone extraction.

A method of producing a multi-lumen elongate body for a medical device. Unlike known methods requiring a solid core of material inserted into each lumen to maintain patency of the lumens during manufacture, the present method obviates the need for a solid core within one or more minor lumens, which saves cost and production complexity. One or more material overlay and mesh overlay steps may be used to produce the multi-lumen elongate body, but only the main lumen may include a solid core therein during all manufacturing steps. The one or more minor lumens may each be defined by a lumen tube having a sufficient stiffness to withstand external pressure during all manufacturing steps without the need for a solid core within.

In some examples, a catheter includes an elongated body comprising proximal and distal portions. The distal portion of the elongated body comprises an inner liner that includes a proximal liner section and a distal liner section that include different materials, and an outer jacket positioned over the inner liner. The distal liner section has a first hardness and the proximal liner section has a second hardness, where the first hardness is less than the second hardness.

A delivery apparatus is provided for inserting catheters and/or cannulae into a patient's blood vessel or body cavity either with or without the use of ultrasound imaging. The apparatus is used for the delivery of central venous catheters (CVCs) for creating a central line. The invention also relates to uses of the apparatus, and to methods for inserting catheters or cannulae (e.g. a CVC) into a patient.

A medical fluid suspension generating apparatus for performing medical procedures includes a Venturi-agitating tip assembly composed of a multi-channel arrangement at a proximal first end thereof and a tip at a distal second end thereof. The apparatus also includes a compressed medical fluid unit fluidly connected to the multi-channel arrangement at a proximal first end of the Venturi-agitating tip assembly and a medical solution fluidly connected to the multi-channel arrangement at a proximal first end of the Venturi-agitating tip assembly. Pressurized sclerosant or other chemical medical solution, from the compressed medical fluid unit, and the medical solution of sclerosant or other chemical medical solution are combined within the Venturi-agitating tip assembly in a manner generating an enriched medical suspension that is ultimately dispensed from the suspension delivery apparatus to spray or wash the inner wall of a lumen.

The illustrative embodiments described herein are directed to a system and method for administering reduced pressure at a tissue site. The apparatus includes a reduced pressure source. The reduced pressure source generates a reduced pressure. The apparatus includes a tube having a plurality of lumens. The plurality of lumens includes at least one collection lumen. The reduced pressure source applies the reduced pressure to the tissue site through the plurality of lumens such that the at least one collection lumen receives fluid from the tissue site. The at least one collection lumen stores the fluid received from the tissue site.