Tubing protectors, systems including tubing protection, and methods for protecting tubing, are disclosed, such as for protecting tubing connected between a patient and a dialysis machine (e.g., peritoneal dialysis machine) during a dialysis treatment. A tubing protector may include a tubing sheath attachable to a patient. The sheath may include a first portion for receiving and protecting a length of tubing extendible in the sheath, such as to minimize collapse, kinking, blockage, or combinations thereof, along the length of the tubing. A second portion may comprise a flexible material and enclose the first portion. The first portion may comprise a resilient material, which allows for movement in the sheath and has a strength to allow for reorientation of the tubing, while withstanding deformation of the tubing along the length. The first portion may be a coil, a plurality of rings, a woven mesh, or a solid tube, or combinations thereof.

A dual tip dialysis catheter has a proximal portion with connected lumens and a distal portion with diverging lumens. The lumens may separate at a split junction and diverge in a scissors like manner to reduce or eliminate a crack or gap adjacent to the split junction, thereby reducing clotting. A dual tip dialysis catheter may have forward openings configured to direct flow in opposite directions.

A laparoscopic device includes a flexible insertion part including an imaging optical system and an illumination optical system that are covered with an exterior tube; and an operational part connected to a base end of the insertion part. The insertion part is inserted into a peritoneal dialysis catheter for observation of an abdominal cavity, and the insertion part includes a distal extended part that is extendable from the peritoneal dialysis catheter in the abdominal cavity during use and formed in a shape with a curved part having a cumulative central angle between 180° and 360°.

Systems and methods of disinfection of catheter connections are provided. A transfer catheter connector can include a UV-transparent window at its distal end and a sealing plunger proximal to the UV-transparent window. A solution set connector can be inserted inside a portion of the transfer catheter connector to connect a solution set and transfer catheter. The solution set connector comprises a lumen covered by a leading membrane surface; a sealing surface configured to sealingly engage the window surface, and a piercing member configured to pierce the membrane surface. The sealing plunger, membrane surface, and window define a disinfection zone. The connectors can be connected in a disinfection position configuration in which flow is not permitted between the catheters and the connectors are irradiated with UV light. After disinfection, the connectors are advanced to a flow position in which the piercing member pierces the membrane surface, enabling flow between the catheters.

A dialysis machine (e.g., a peritoneal dialysis (PD) machine) can include a pressure sensor mounted at a proximal end of a patient line made of a distensible material that provides PD solution to a patient through a catheter. During treatment, an occlusion can occur at different locations in the patient line and/or the catheter. When an incremental volume of additional solution is provided to the patient line while the occlusion is present, a change in pressure results. The change in pressure depends on dimensions and a distensibility of a non-occluded portion of the patient line. If the change in pressure, the incremental volume, properties related to the distensibility of the patient line, and some of the dimensions of the patient line are known, a location of the occlusion can be inferred. An occlusion type can be inferred based on the inferred location.

A patient connector for dialysis is disclosed. In an example, a patient connector includes a housing including an inlet and an outlet and defining at least one aperture. The patient connector also includes a seal initially blocking the outlet and a hydrophobic filter covering the at least one aperture of the housing. The patient connector further includes a check valve positioned and arranged to prevent air from being vented from the housing via the at least one aperture and through the hydrophobic filter when the housing is under atmospheric pressure or negative pressure. The check valve is configured to allow air to be vented from the housing via the at least one aperture and through the hydrophobic filter when the housing is under positive pressure.

A device and methods for treating renal failure are disclosed. One embodiment of the device is an implantable peritoneal dialysis device. When in use, the device can have a semi-permeable reservoir implanted in the peritoneal cavity. The reservoir can receive blood waste and drain through one or more conduits, via a pump, to the biological bladder. Solids and/or a solution benefiting dialysis can be pumped to the reservoir and/or implanted in the peritoneal cavity.

In one aspect, the present disclosure provides a catheter, the catheter with a distal length extending to a distal end, the distal length configured to indwell a cavity of a patient body. The distal length may include a first lumen extending longitudinally through a lengthwise portion of the distal length, where the first lumen may be at least partially defined by a first inner diameter surface of the distal length. The distal length may include a second lumen extending longitudinally through the lengthwise portion of the distal length, where the second lumen may be at least partially defined by a second inner diameter surface of the distal length. A first fenestration may be disposed through a side wall of the first lumen. A proximal length of the catheter may include a proximal lengthwise portion of the first lumen and the second lumen.

Percutaneous access devices (PAD) or other implantable medical devices formed with chain mail are provided. The use of chain mail allows for a flexible PAD that promotes the formation of natural biologic seals between the skin and the device to form a barrier to microbial invasion into the body. Percutaneous access devices may be used for cardiac assist systems, peritoneal dialysis catheters, Steinman pin, Kirschner wires, chronic indwelling venous access catheters that require skin penetration, and osseo-integrated percutaneous medical appliances. Unlike conventional chain mail that is only formed in two dimensional sheets, chain mail is formed in elongated linear chains with occasional interlinks, two dimensional sheets, and in other configurations and combinations including three dimensional structures, pendant petals, elongated linear chains, combined fractal structures having a non-integer dimensionality intermediate between 1 and 3, and combinations thereof. Chain mail may be formed of combinations of simpler structures to form higher-order structures.

A medical treatment system includes a disposable fluid circuit that includes a water inlet and a batch container arranged to hold a mixture, the mixture including water that is received from the water inlet and at least one concentrate. The fluid circuit also includes a drain line for draining fluid from the disposable fluid circuit, and a configurable fluid pathway with a plurality of fluid lines, the configurable fluid pathway connecting the water inlet, the batch container, a source of the at least one concentrate, and the drain line. A source of purified water supplies the purified water to the water inlet and a sensor detects a property of fluid in the disposable fluid circuit. A controller controls flowing of a first fluid followed by displacement by a second fluid causing the first fluid to flow to the sensor.