A peritoneal dialysis (PD) catheter is disclosed. In various embodiments, the PD catheter includes an improved intraperitoneal drain array as well as an improved anchor for use in placement of the device.

An external end device has a casing (4), a fitting (15) housed in the casing (4) and having at least one distal part (16) which engages a catheter (3), and two proximal tracts (17, 17), in which a pair of curved pipes (18, 18) are inserted with a distal end (180) thereof. The curved pipes (18, 18) have a proximal end (181), in which a pair of nozzles (190, 190) are inserted. Inside each nozzle (190) there is a cap (20) suitable for hermetically sealing the nozzle (190). A piercing and connecting conduit (24) is adapted to reversibly pierce the cap (20) and to connect the pair of nozzles (190, 190) to the flow lines of the treatment equipment. Also disclosed is a method of connecting the external terminal device to flow lines of a machine.

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 the dimensions and the distensibility of the non-occluded portion of the patient line. If the change in pressure, the incremental volume, the properties related to the distensibility of the patient line, and some of the dimensions of the patient line are known, the location of the occlusion can be inferred. The occlusion type can be inferred based on the determined location.

A cannula apparatus (100) and method are provided for selective fluid flow in removal and return directions. An outer sheath (102) has proximal (104) and distal (106) outer sheath ends spaced apart by a longitudinal outer sheath body (108) defining an outer sheath lumen (110). At least one fluid removal aperture (112) extends through the outer sheath body. The outer sheath includes a side access aperture (114). An introducer (1534) has proximal (1536) and distal (1538) introducer ends spaced apart by a longitudinal introducer body (1540), which at least partially defines a guidewire channel (1542) longitudinally therealong. The introducer is configured for insertion into the outer sheath lumen with the guidewire channel in fluid communication with the side access aperture. An inner tube (218) has proximal (220) and distal (222) inner tube ends. At least one fluid return aperture (228) is located at least one of at and adjacent the distal inner tube end to place an inner tube lumen in fluid communication with an ambient space.

Disclosed are peritoneal dialysis catheters comprising a distal region comprising a perforated portion and one or more expandable member configured to float the catheters on dialysate fluid within the peritoneal cavity of a patient, and methods for using the catheters.

This application relates to a system, apparatus, and methods for renal dialysis training the patients, providers, and caretakers without harming or injuring an actual patient. The renal dialysis may be hemodialysis, peritoneal dialysis, or both. The system comprises at least one closed-loop apparatus with at least one of the following—artificial blood, cannulatable vascular system, heart, peritoneal membrane and cavity, vascular valves, artificial skin, and/or other artificial organs set inside a mannequin, humanoid, or any human-like machine. The artificial organ in the mannequin can be accessed through an opening in the chest, arm, abdominal cavity, thigh, groin, neck, and any combination thereof. The renal dialysis may be through catheter access, arterio-venous graft access, and peritoneal catheter access.

The present invention relates to a device for identifying the connection status between a patient catheter and a cassette system having flexible tubing assembly, which is intended to be used in a dialysis machine, wherein the device comprises the cassette system having flexible tubing assembly and an electrical circuit, which is disposed on the cassette system having flexible tubing assembly as well as on the patient catheter, and wherein the device furthermore comprises a measuring device for measuring at least one electrical property of the electrical circuit, which depends on said connection status.

An example catheter assembly includes a first catheter body portion defining a first lumen and a plurality of sidewall openings open to the lumen and configured to at least one of introduce fluid into a patient or remove fluid from the patient. The catheter assembly further includes a second catheter body portion defining a second lumen, a first cuff proximal to a distal end of the first catheter body portion, a second cuff distal to a proximal end of the second catheter body portion, and a connector configured to mechanically connect the first and second catheter body portions between the first and second cuffs and to fluidically connect the first and second lumens. A distance between the first and second cuffs is modifiable by at least modifying one of a length of the first catheter body portion or a length of the second catheter body portion.

A method of performing a dialysis treatment includes using a pump and a dialysate supply line to transport peritoneal dialysis fluid, the supply line having a proximal end into which peritoneal dialysis fluid is supplied and from which spend dialysate is withdrawn, and a distal end which is connected to a patient's peritoneal access. The method further includes generating proximal and distal pressure signals using pressure detectors located at both the proximal and distal ends, respectively, of said supply line. During a drain cycle in which spent dialysate is pumped from the patient, the method includes, responsively to the proximal and distal pressure signals, detecting a characteristic of a pressure difference between the distal and proximal ends whose magnitude is determined by a predicted change in dialysate properties, and responsively to the characteristic, generating a signal indicating the change in dialysate properties.

The disclosure relates to a subcutaneously implanted port device for establishing access to the vascular system of a patient requiring multiple blood treatments over an extended period of time. The systems, devices and methods disclosed herein may reduce miscannulation, promote intra-session hemostasis, and decrease the incidence of bacteremia and sepsis among other improvements and advantages. The devices include a port with a tapered seat for receiving an access tube, the first tapered seat having a proximal portion, a distal portion, and a conical section extending between the proximal portion and the distal portion; and an interface surface configured to engage a blood vessel or a vascular access catheter. The proximal portion of the tapered seat is configured to receive the access tube therethrough, and the tapered seat creates a mismatch fit with a diameter of the access tube when in use for an increase in flow during treatment.