A coated urinary catheter or urinary stent device includes a urinary catheter or stent which, in a deployed position, includes or defines a protective surface area and a protected surface area and a coating upon at least a portion of the protective surface area. The coating includes a lubricant and an antimicrobial and/or pH buffering material. The device is configured such that, upon application of negative pressure to the catheter or stent, tissue of a urinary tract of a patient conforms or collapses onto the protective surface area and is thereby prevented or inhibited from occluding one or more protected drainage holes, ports or perforations of the catheter or stent.

A catheter for ultrasonic-driven bladder therapeutic agent delivery, including: a tube having a proximal expandable portion and a distal end, and at least one transducer sleeve accommodating at least one ultrasound transducer mounted on the tube between the proximal expandable portion and the distal end.

A covered catheter, including a catheter body coated with a lubricant to facilitate entry into tissue of a user, and a covering sheath, including a sheath body to cover at least a portion of the catheter body in an extended position, and expose the catheter body in a retracted position, a first end cap disposed on at least a portion of a first end of the sheath body to enclose the first end of the sheath body, and a second end cap disposed on at least a portion of a second end of the sheath body to enclose the second end of the sheath body.

Various embodiments disclosed relate to drug-coated balloon catheters for treating, preventing, or reducing the recurrence of a stricture and/or cancer, or for treating benign prostatic hyperplasia (BPH), in a non-vascular body lumen and methods of using the same. A drug-coated balloon catheter for delivering a therapeutic agent to a target site of a body lumen stricture includes an elongated balloon having a main diameter. The balloon catheter includes a coating layer overlying an exterior surface of the balloon. The coating layer includes one or more water-soluble additives and an initial drug load of a therapeutic agent. In some embodiments, the balloon catheter includes a length-control mechanism which stretches and elongates the balloon when it is in a deflated state, giving the balloon a smaller cross-sectional deflated profile for tracking through the body lumen and for removal after treatment.

A urethral catheter. A cavity is formed at the head end of the urethral catheter, and an internal span of the cavity is greater than that of an opening. A check device (2) located at the front end of a guide core (5) is received in the cavity, and the check device (2) is a guide core (5) that can be retracted into a guide core catheter (4) and can move within the guide core catheter (4). The guide core (5) can expand outward after moving out of the guide core catheter (4). The span of the top of the expanded guide core (5) is greater than the outer diameter of the opening of the cavity at the head end of the urethral catheter. The urethral catheter eliminates a guide extension inserted inside the urethral catheter, and avoids any structural parts provided in the front end of the urethral catheter, and no accessory device is provided at the inner side of the catheter wall of the conventional urethral catheter, so that the internal urination cross-sectional area of the urethral catheter is the same as the area of the inner holes of the urethral catheter, thereby greatly increasing the urine output of the urethral catheter and greatly reducing the injection resistance of a lubricant.

In some embodiments, an external bladder management system that is configured to reside within a urine collection receptacle (e.g., a toilet) includes a body that houses a fluid testing chamber. The fluid testing chamber is fluidically coupled to a fluid inlet and a fluid outlet. The system further includes a fluid capturing funnel fluidically coupled to and extending from the body and configured to couple the body to the urine collection receptacle. The system further includes an optical sensor disposed within the body and including (1) an emitter configured to convey light across the fluid testing chamber, and (2) an optical detector capable of measuring an intensity of the light as the light exits the fluid testing chamber. The fluid inlet, fluid testing chamber, and fluid outlet are collectively configured to encourage a laminar flow profile of the fluid as it flows through the fluid testing chamber.

A catheter system is disclosed that includes a catheter with an elongated, flexible tube having an entry end, an exit end, and a control valve. The control valve controls the flow of fluids through the catheter tube. The exit end or control valve also includes a coupler which is utilized to allow the catheter to be moved between a stowed condition coupled to a flexible belt and an in-use condition uncoupled from the belt.

An intermittent urinary catheter assembly (20) comprises a catheter tube (22) having a proximal insertion end (24) and a distal end (26) remote from the proximal insertion end and a lumen (28) which extends from at or near the proximal insertion end to the distal end for draining urine from a human bladder. The intermittent urinary catheter assembly includes a urine discharge sleeve (34) associated with the discharge opening (30) of the catheter tube, and the urine discharge sleeve has a compact stowed configuration and is extendable into a deployed configuration for directing urine flow. Alternatively, an adapter assembly (50″) comprises a fitting or nipple (52″) having a urine passageway for insertion into a funnel (40″) associated with a urine discharge end of an intermittent urinary catheter, and a discharge funnel (42″) associated with the fitting or nipple, and an extendable urine discharge sleeve (34″) within the discharge funnel.

Systems and methods for performing Direct Sodium Removal (DSR) therapy are provided in which an implantable device includes a pump coupled to an inlet catheter designed for placement in a patient's peritoneal cavity, an outlet catheter designed to be coupled to the patient's bladder, and is operably coupled to an analyte sensor, the pump programmed to transfer and/or cease transfer of fluid from the patient's peritoneal cavity to the patient's bladder for voiding responsive to a level of analyte detected by the analyte sensor. In addition, the system may include a processor that computes an amount of analyte transferred per pumping session.

A catheter for measuring pressure in the urinary tract of a patient includes a catheter body having a proximal and distal end. A plurality of lumens is formed in the catheter body, and an adaptor is coupled to the proximal end of the catheter body. The adaptor includes a port for each lumen. A first pressure sensor, typically including a balloon, is fluidically coupled to a first lumen and is configured and positioned to measure pressure in a urethra of the patient. A second pressure sensor, also typically including a balloon, is fluidically coupled to a second lumen and is configured and positioned on the catheter body to measure pressure in a bladder of the patient. An expandable retention member, which may be coupled to a third lumen, is positioned on the catheter body between the first and second expandable pressure sensors so that the catheter body may be retained at a selected location in the urinary tract to properly position the fluid pressure sensors in the bladder and urethra, respectively.