A drainage system comprising: (a) a catheter including a sensor; (b) a first valve in fluid communication with an interior of the catheter; (c) a controller communicatively coupled to the sensor, the controller including logic configured to direct at least one of opening and closing of the first valve using at least one of an elapsed time and a presence of a predetermined condition; and, (d) a venturi pump in fluid communication with the interior of the catheter.

An implant for controlling fluid flow within a patient's urethra, the implant comprising a fluid pathway configured to receive a fluid; a seal configured to restrict fluid flow between the fluid pathway and the patient's urethra, in use, and a valve configured to control the flow of the fluid along the fluid pathway.

The invention relates to an intravenous catheter apparatus comprising: a catheter hub arranged at a proximal end of a catheter tube, the catheter hub having an inner surface defining a chamber; a needle defining an axial direction and having a needle tip, the needle extending through the chamber and the catheter tube when in a ready position; a needle guard slidably arranged on the needle and at least partially received in the chamber when the needle is in the ready position, the needle guard including a base portion and first and second arms extending from the base portion, wherein the first arm is deflected radially outwards by the needle against a restoring force when the needle is in the ready position whereby the needle guard is brought into retaining contact with the catheter hub; and wherein the catheter apparatus includes a valve which separates a distal space arranged in distal direction from the valve from a proximal space arranged on proximal direction from the valve. The invention further provides that the valve opens based on a pressure differential between the pressure prevailing in the distal space and the pressure prevailing in the proximal space.

A catheter for vascular insertion, including a catheter body defining a first lumen and a second lumen, and including a distal region. The distal region includes an atraumatic nose portion defining a first distal opening in fluid communication with the first lumen, and a second distal opening in fluid communication with the second lumen. The distal region also includes a first lateral opening defined by the catheter body and in fluid communication with the first lumen, and a second lateral opening defined by the catheter body and in fluid communication with the second lumen. One or both of the first and second lateral openings may be defined by an angle cross-cut through an outer perimeter of the catheter body.

The invention relates to a wetting mechanism 20 for wetting a tube 12 of a catheter 10. The wetting mechanism 20 includes a housing 16 positioned initially at or proximal to the tip end 13 of the catheter tube 12. The housing 16 comprises a wetting chamber 23 into which at least a portion of the catheter tube 12 is able to be introduced and be moved therethrough to wet the catheter tube 12 in use. The wetting mechanism 20 includes a wetting applicator 40 positioned within the wetting chamber 23 configured to hold fluid therein and release said fluid to wet the catheter tube 12 upon movement of the tube 12 through the wetting chamber 23.

A shunt can include a primary catheter for receiving fluid, a secondary catheter for receiving fluid, and a pressure-sensitive valve to prevent flow of fluid to the secondary catheter in a first mode until the primary catheter is occluded. The pressure-sensitive valve can transition to a second mode responsive to occlusion of the primary catheter, permitting flow of fluid to the secondary catheter.

The present disclosure relates to multiple embodiments of catheters which include valved openings which are normally closed to maintain a lock solution within a catheter during periods of non-use.

A catheter for treatment of sinusitis capable of causing a space in a further rear (distal side) of a posterior nasal aperture to communicate with external air is provided. The catheter comprises an anterior nasal aperture balloon 33, an anterior nasal aperture balloon air supply lumen 39b for inflating the anterior nasal aperture balloon 33, a posterior nasal aperture balloon 13, a posterior nasal aperture balloon air supply lumen 19b for inflating the posterior nasal aperture balloon 13, and a drainage lumen 39a having an opening 41 between the anterior nasal aperture balloon 33 and the posterior nasal aperture balloon 13, in which an external air communication lumen 19a having an opening 21 on a distal side from the posterior nasal aperture balloon 13 is further provided.

A percutaneous catheter is disclosed through which blood passes. The percutaneous catheter having a catheter tube including a first tube and a second tube, the second tube being in fluid communication with the first tube, the first tube having an inner diameter greater than an inner diameter of the second tube, and wherein the first tube is more flexible than the second tube.

The invention relates to an intravenous catheter apparatus comprising: a catheter hub (12) arranged at a proximal end of a catheter tube (10), the catheter hub (12) having an inner surface (14) defining a chamber (16); a needle (20) defining an axial direction and having a needle tip (24), the needle (20) extending through the chamber (16) and the catheter tube (10) when in a ready position; a needle guard (32) slidably arranged on the needle (20) and at least partially received in the chamber (16) when the needle (20) is in the ready position, the needle guard (32) including a base portion (34) and first and second arms (36, 38) extending from the base portion (34), wherein the first arm (36) is deflected radially outwards by the needle (20) against a restoring force when the needle (20) is in the ready position whereby the needle guard (32) is brought into retaining contact with the catheter hub (12); and wherein the catheter apparatus includes a valve which separates a distal space arranged in distal direction from the valve from a proximal space arranged on proximal direction from the valve. The invention further provides that the valve opens based on a pressure differential between the pressure prevailing in the distal space and the pressure prevailing in the proximal space.