A ureteral catheter includes a drainage lumen having 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 includes a retention portion for maintaining positioning of the distal portion of the drainage lumen. The retention portion includes a plurality of sections, each section having one or more openings on a sidewall of the retention portion for permitting fluid flow into the drainage lumen. A total area of openings of a first section of the plurality of sections is less than a total area of openings of an adjacent second section of the plurality of sections. The second section is closer to a distal end of the drainage lumen than the first section.

An implantable ureteral stent for implanting in the ureter comprising a first end for placing in the renal pelvis and a second end for placing in the bladder, each said end including a pressure sensor arranged to measure urinary pressure. Each pressure sensor can include an electronic circuit with electronic components and a substrate for receiving the electronic circuit and electronic components, wherein said substrate is a flexible membrane. The flexible membrane can be a sleeve surrounding the stent or the flexible membrane can be a flexible tube that is part of a thin tube that forms the stent, in particular the flexible membrane may have a thickness of 80-150 μm. The electronic components can be connected by wire-bonding. Each pressure sensor can have a flexible PCB having soldered electronic components. A manufacturing method is disclosed to make said implantable ureteral stent.

Lumen-apposing shunt devices for transporting body fluid from a first compartment (e.g., peritoneal cavity) to a second compartment (e.g., bladder) comprise a longitudinal tube communicating between the two compartments and retention systems that separate apart and maintain each end of the tube within the respective compartment. The retention systems include double self-expandable wheels and double inflatable balloons enveloping the tube transversely, with one wheel or balloon in the first compartment and the other wheel or balloon in the second compartment. The self-expanded wheels or inflated balloons support and retain the shunt device between the compartments as fluid (e.g., ascites) from the first compartment flows into the second compartment in response to pressure gradients between the compartments. The shunt device contains a one-way valve mechanism to provide unidirectional flow of fluid from the first to the second compartment and to prevent reflux from the second to the first compartment.

Disclosed is an expandable transluminal sheath, for introduction into the body while in a first, low cross-sectional area configuration, and subsequent expansion of at least a part of the distal end of the sheath to a second, enlarged cross-sectional configuration. The distal end of the sheath is maintained in the first, low cross-sectional configuration and expanded using a radial dilatation device. In an exemplary application, the sheath is utilized to provide access for a diagnostic or therapeutic procedure such as ureteroscopy or stone removal.

A percutaneous urinary catheter configured to be deployed in a urinary tract, including: (a) a proximal portion; and (b) a distal portion including a retention portion configured to be deployed in a kidney and/or a renal pelvis, the retention portion including one or more drainage holes leading to one or more lumen(s) within the proximal portion, wherein the retention portion, when deployed, defines a three-dimensional shape sized and positioned to maintain patency of fluid flow between the kidney and/or renal pelvis and a proximal end of the catheter by inhibiting mucosal tissue from appreciably occluding the one or more drainage holes when negative pressure is applied through the catheter.

A percutaneous urinary catheter configured to be deployed in a urinary tract, including: (a) a proximal portion; and (b) a distal portion including a retention portion configured to be deployed in a kidney and/or a renal pelvis, the retention portion including one or more drainage holes leading to one or more lumen(s) within the proximal portion, wherein the retention portion, when deployed, defines a three-dimensional shape sized and positioned to maintain patency of fluid flow between the kidney and/or renal pelvis and a proximal end of the catheter by inhibiting mucosal tissue from appreciably occluding the one or more drainage holes when negative pressure is applied through the catheter.

A urinary catheter (20) includes a shaft (22) having a hydrophilic material and a distal end and a proximal end with a lumen running between the two. The proximal end includes an eyelet (24) that is in fluid communication with the lumen. A handle is attached to the distal end of the shaft and includes a first grip member (28) and a second grip member (32) configured so that the first grip member pivots relative to the second grip member. A sleeve (34) defines an interior chamber (45), and the shaft is positioned within the interior chamber. The sleeve is sealed to the first grip member so that when the first grip member is pivoted, the sleeve is torn open.

A medical device including an elongate member having a distal end portion, a proximal end portion, and a medial portion disposed between the distal end portion an the proximal end portion. The proximal end portion is configured to be disposed within a bladder of a patient. A portion of the proximal end portion is configured to contact an inner wall of the bladder to help retain the bladder in an expanded configuration.

A catheter assembly including curved urinary catheter and a similarly curved housing for holding and carrying the same are disclosed. A catheter subassembly may be removed from the housing and mounted onto the handle to provide the catheter assembly in an extended deployed condition. The insertable portion of the catheter is curved in a way that compliments the curvature of the female urethra.

A catheter system for delivery of a ureteral catheter in a ureter includes a ureteral catheter, a pusher catheter to deliver the ureteral catheter at a desired location, and a connection device, to connect, in an assembled state a distal end of the pusher catheter to a proximal end of the ureteral catheter. The catheter further includes a releasable tether to secure a connection of the connection device between the ureteral catheter and the pusher catheter. The connection device includes a connector element provided on the ureteral catheter, and a sleeve provided on the pusher catheter, where the connector element is configured to be arranged in the sleeve, and that the tether is arranged to prevent unintentional release of the connector element out of the sleeve.