A urinary catheter is readily removed and replaced with a second urinary catheter without introducing foreign matter or contaminants into the bladder. The first urinary catheter includes an extra lumen that houses a sheath, which sheath seals the extra lumen from introduction of fluids. The sheath seals an opening hole at or near the tip of the catheter. After the sheath is extracted from the catheter, a guidewire is threaded through the extra lumen and into the patient's bladder. The first urinary catheter is withdrawn from the patient, leaving the guidewire in the patient. A second urinary catheter is inserted into the patient over the guidewire, with the guidewire present in the urine lumen of the second urinary catheter. The guidewire then is extracted from the patient. The second urinary catheter may also have an extra lumen and a sheath with a break-away seal so that the second urinary catheter may be removed and replaced in like manner.

A safety balloon catheter includes a catheter having a stretch valve, a connector, a balloon inflated with an inflation fluid, a hollow inflation lumen extending through the catheter to the balloon and conveying inflation fluid thereto and therefrom, a hollow second lumen, and a balloon drainage port fluidically connecting the balloon to the second lumen. The stretch valve has a hollow base fixed in the second lumen at a proximal catheter end and shaped to permit a fluid therethrough and a hollow plug slidably positioned in the second lumen at a given distance from the base to, in a steady state, prevent inflation fluid from passing through the drainage port and, when actuated, slide within the second lumen to permit inflation fluid to pass through the drainage port and into the second lumen. The connector connects the base and the plug and has a length greater than the given distance.

Double-lumen infusion catheter including: a shaft having proximal section, distal section, and intermediate section therebetween; first and second lumens extending along a length of the shaft and having arc shaped wall therebetween; and an inflatable member provided distally to intermediate section, and over the distal section. First lumen has cross section larger than cross section of second lumen and is configured to receive a guidewire therethrough and allow fluid flow via an unobstructed portion of first lumen. Unobstructed portion is formed along guidewire outer surface, between guidewire outer surface and inner wall of first lumen, and extends from an inlet at proximal end of intermediate section to an outlet at distal end of intermediate section. First lumen is narrowed to approximate a first diameter in shaft proximal and distal sections, and is widened to approximate a second diameter greater than first diameter in the shaft intermediate section.

A permanent, removable and self-sustainable urethral probe, is provided. The probe includes a tubular body, which includes two discs, one being a proximal fixed disc and the other being a distal mobile disc. The tubular body has a distal end that includes holes connected by a longitudinal channel traversing the tubular body. The probe includes a connector that may be closed by a corresponding cover. The total length of this probe 1 is 7 cm for child models and 8 cm for adult models. A 15 cm is also available to be used in patients with special needs such as wheelchairs.

This invention relates to a multi-lumen flushable catheter device and a kit including this device. The multi-lumen catheter is made of a single lumen catheter in fluid connection with a multi-lumen catheter. The multi-lumen catheter includes a fluid lumen and a backflow connection lumen; wherein the fluid lumen and a backflow connection lumen are in fluid communication; a pressure control lumen made of a proximal port to receive a fluid such as air or a liquid and a distal balloon, the distal balloon is configured to block the single lumen catheter to prevent fluid flow into the single lumen catheter, wherein the pressure control lumen is not in fluid connection with the central lumen of the multi-lumen catheter. This device allows cleaning of in dwelling catheter in situ.

A balloon catheter which allows for faster preparation and effective purging of air. The balloon catheter includes an elongated, flexible catheter having an inner lumen. A balloon member is secured to an outer surface of a distal portion of the catheter such that an inner surface of the balloon member and an outer surface of the catheter define an inflatable balloon interior. The catheter has an inflation lumen connected to an inflation port and extending distally to a distal end in fluid communication with the inflatable balloon interior. One or more purge apertures are provided in a wall of the catheter, each forming a fluid path between the inflatable balloon interior and the inner lumen of the catheter to allow for purging air from the catheter prior to use in a medical procedure.

A dialysis catheter includes a first tubular member having a proximal portion, a distal portion, and an inflation lumen extending at least partially through the first tubular member. The catheter has a balloon at the distal portion of the first tubular member, the balloon being in fluid communication with the inflation lumen. A second tubular member has a proximal portion connected to an outer surface of the first tubular member. The second tubular member has a second lumen extending therethrough, with a second opening connected to the second lumen. A third tubular member has a proximal portion connected to the outer surface of the first tubular member and a distal portion partially detached from the rest of the catheter (e.g., a catheter body) over a first detachment length. The third tubular member has a third lumen extending therethrough with a third opening connected to the third lumen.

Devices, systems, and methods are disclosed that help deliver catheters or other medical devices to locations within a patient's body. The device includes a transporter catheter having a proximal end and a distal end, at least a first balloon located at the distal end, substantially at a tip of the transporter catheter, and at least a second balloon located between the distal end and the proximal end of the transporter catheter. The first balloon is an orienting balloon and the second balloon is an anchor balloon. The transporter catheter may include a single lumen or more than one lumen. The transporter catheter may include a shaft including an inner layer and an outer layer, the inner layer may be made of a material more flexible than the material of the outer layer. The outer layer may also include a braided-wire assembly, said braided-wire assembly being formed by braiding a plurality of flat wires or circular wires. The braided-wire assembly may wrap around the inner layer. The transporter catheter may include a shaft that may include a plurality of segments of varying degrees of hardness. The degree of hardness of the segment of the shaft of the transporter catheter located between the first balloon and the second balloon may be less than the degree of hardness of the segment of the shaft between the second balloon and the proximal end of the catheter.

This invention relates to a multi-lumen flushable catheter device and a kit including this device. The multi-lumen catheter is made of a single lumen catheter in fluid connection with a multi-lumen catheter. The multi-lumen catheter includes a fluid lumen and a backflow connection lumen; wherein the fluid lumen and a backflow connection lumen are in fluid communication; a pressure control lumen made of a proximal port to receive a fluid such as air or a liquid and a distal balloon, the distal balloon is configured to block the single lumen catheter to prevent fluid flow into the single lumen catheter, wherein the pressure control lumen is not in fluid connection with the central lumen of the multi-lumen catheter. This device allows cleaning of in dwelling catheter in situ.

A delivery system can be provided with an ability to change its configurations to achieve both access to target anatomy and treatment thereof. Such treatments can include directing interventional devices around an occlusion. By providing different functionality at different stages, the need to exchange and replace tools at different stages can be reduced or eliminated. Accordingly, such operations can be completed more rapidly, efficiently, and safely.