Embodiments disclosed herein relate to ureteral stents having an elongated stent body and one or more deformable bladders secured thereto, and methods of using the same.

Provided is a ureteral stent for placement in a bladder, a kidney and a ureteral passageway connecting the bladder and the kidney. The ureteral stent includes a solid bladder portion free of a lumen positionable in the bladder, a tubular kidney portion positionable in the kidney and the ureteral passageway, and a tether connecting the bladder portion and the ureter portion to allow the bladder portion to float in the bladder and to allow a ureter orifice connecting the ureteral passageway to the bladder to move between a compressed state and an uncompressed state. By not having a lumen, the solid bladder portion allows the bladder to have a smaller diameter while maintaining a necessary uncoil force. The smaller diameter also allows the bladder portion to be inserted into a scope alongside a pusher tube, thereby avoiding loading the bladder portion onto a guidewire.

A continuous-flow system for the treatment of edema in an injured central nervous system (CNS) tissue, including: a reversibly implantable device having: an inflow pathway, an outflow pathway, and a fluid flow pathway connecting the first outlet of the inflow pathway and the second inlet of the outflow pathway, wherein the fluid flow pathway includes a semi-permeable membrane; a first reservoir; a fluid-driving apparatus; a second reservoir; and a plurality of fluid flow conduits that fluidically connect the first reservoir, the fluid-driving apparatus, the second reservoir, and the reversibly implantable device; wherein the reversibly implantable device is configured to allow direct contact between the semi-permeable membrane and at least a portion of the injured CNS tissue; wherein the system is configured to contain a solution that pass through the fluid flow pathway and induces osmotic flow of water from the injured CNS tissue across the semipermeable membrane and into the solution, thereby decreasing swelling of the tissue. Also disclosed are related methods for removing water from a traumatically injured central nervous system (CNS) tissue in a subject.

The embodiments disclosed herein relate to a ureteral stent having two stent bodies and a tether. The stent can minimize or prevent migration of the device out of the bladder of the patient while also reducing patient discomfort associated with such stents.

Disclosed herein is an apparatus. The apparatus includes a solid wire and a delivery catheter. The solid wire being provided with one or more retention mechanisms at a proximal end, a distal end, or both. The delivery catheter being capable of maintaining the one or more retention mechanisms in a delivery configuration. The one or more retention mechanisms are configured to expand to a deployed configuration upon removal of the delivery catheter.

A ureteral catheter includes a drainage lumen including a proximal portion configured to be positioned in at least a portion of a patient's urethra and/or bladder and a distal portion configured to be positioned in a patient's kidney, renal pelvis, and/or in the ureter adjacent to the renal pelvis, the distal portion including a retention portion for maintaining positioning of the distal portion of the drainage lumen, the retention portion including two or more openings on a sidewall of the retention portion for permitting fluid flow into the drainage lumen, wherein a number of the openings nearer to a distal end of the retention portion is greater than a number of the opening(s) nearer to a proximal end of the retention portion.

A stent comprising a tubular member, a lumen extending through the tubular member, a first retention structure and a second retention structure at opposite ends of the tubular member. The first retention structure comprises multiple coils and a removable anti-coiling material over the multiple coils of the first retention structure to present the multiple coils as an elongated extension of the tubular member, whereupon removal of the removable anti-coiling material at least one of the multiple coils of the first retention structure is presented and any excess coils can be trimmed.

Urologic stents that are adapted for temporary use to provide relief following treatments for benign prostatic hyperplasia and other disorders of the prostate, urethra and ureters.

A method of assessing bladder storage anomalies via utilization of an indwelling urinary drainage catheter is provided. A urodynamic assessment assembly is provided, the assembly characterized by a pressure sensor for vesical pressure measurement, a processor/controller for receiving, processing and/or displaying select urodynamic patient parameters comprising sensed/monitored pressure data, and a catheter balloon adaptor for operably uniting the pressure sensor of the urodynamic assessment assembly to a balloon inflation valve of the indwelling urinary drainage catheter, the indwelling urinary drainage catheter operably linked with the urodynamic assessment assembly. Vesical pressure is sensed via the vesical pressure sensor during a bladder emptying event, the bladder emptying event characterized by an application of variable resistance to fluid flow from the bladder via the indwelling urinary drainage catheter with vesical pressure/outlet resistance/flow rate relationships established based upon sensed vesical pressure values.

A grasping tool (20) for removing a stent from the body of a patient. The grasping tool has a grasping head (38) forming two jaws connected to each other and configured to be shifted between an open state and a closed state. Each jaw includes three portions having different thicknesses. The grasping tool is configured to obtain sufficient holding force between the jaws while requiring reduced operating force of the tool. A method for removing a stent from a patient is also disclosed.