A61M1/3413

Modular blood treatment systems, units, and methods

A portable adapter is provided that can include a closure system configured to control the flow of blood and/or dialysate between the adapter and a blood treatment apparatus. Modular systems are also provided that include the portable adapter engaged with various units such as a portable blood processing module, a non-portable base module, and/or a remote module. Methods of conducting blood treatments such as blood circulation, hemodialysis, and hemofiltration, hemodiafiltration, using the modular systems are also provided. The systems, units, and methods enable the engagement and disengagement of the adapter from the various units to conduct, interrupt, and resume blood treatments without disconnecting the adapter from the vasculature of a patient. Modular systems including interchangeable portable and base modules configured for various blood treatments are also provided that can be engaged and disengaged with each other without disconnecting the portable module from the vasculature of a patient.

Cellulose acetate-based hollow fiber membrane

The present invention provides a hollow fiber membrane including a cellulose acetate-based polymer, in which when an inner surface of the hollow fiber membrane is observed under an atomic force microscope, a plurality of groove-like recesses oriented in a lengthwise direction of the hollow fiber membrane are observed, an average length of the recesses is greater than or equal to 200 nm and less than or equal to 500 nm, an average width of the recesses is greater than or equal to 15 nm and less than or equal to 50 nm, and an aspect ratio defined as a ratio of the average length to the average width of each of the recesses is greater than or equal to 6 and less than or equal to 22.

TECHNIQUES FOR DETERMINING PATIENT BLOOD CHARACTERISTCS DURING A DIALYSIS PROCESS
20210100945 · 2021-04-08 ·

Techniques and apparatus for de-priming processes are described. For example, in one embodiment, an apparatus may include at least one processor and a memory coupled to the at least one processor, the memory may include instructions that, when executed by the processor, may cause the at least one processor to determine a priming volume of a primer fluid infused into a priming system associated with the patient during a priming phase of the dialysis treatment, cause an ultrafiltration rate of an ultrafiltration pump of the dialysis machine in fluid communication with the patient to be changed from a treatment ultrafiltration rate to a de-priming ultrafiltration rate to remove the priming volume over a de-priming time period, and cause, after the de-priming time period, the ultrafiltration rate of the ultrafiltration pump to be changed back the treatment ultrafiltration rate. Other embodiments are described.

Drain Apparatus for Hemodialysis Machines
20210093767 · 2021-04-01 ·

This disclosure relates to dialysis systems and methods. In some implementations, a dialysis system includes a dialysis machine with a fluid line and a drain line, a blood line set configured to be connected to the dialysis machine, and a drain apparatus coupled to the dialysis machine. The drain apparatus includes a chamber configured to receive an end of a patient line of the blood line set, an inlet line, an outlet line, and a valve. The inlet line has a first end configured to be coupled to the chamber and a second end configured to be coupled to the fluid line of the dialysis machine. The outlet line has a first end configured to be coupled to the chamber and a second end configured to be coupled to the drain line of the dialysis machine. The valve is configured to control flow of fluid through the outlet line.

Apparatus and method for urea photo-oxidation
10973971 · 2021-04-13 · ·

Apparatus and method for photo-chemical oxidation are disclosed herein. In one embodiment, a dialysis fluid regeneration system includes: a nanostructured anode; a source of light configured to illuminate the anode; and a cathode that is oxygen permeable.

Centrifugal Gradient Dialysate Dual-Chamber Hemodiafiltrator
20210094002 · 2021-04-01 ·

The present invention provides a hemodiafiltrator comprising two compartmentalized dialysate chambers coaxially arranged in tandem. A single packed bundle of hollow fibers for blood flow is enclosed coaxially along a longitudinal axis inside the dual dialysate chambers. A configuration of a tandem arrangement of the dual dialysate chambers at least comprises a first dialysate chamber for an acidic dialysate with a varying level of urea and a second compartmentalized dialysate chamber for a basic dialysate with no urea but with a level of ammonia up to a level detected in normal human blood.

Filtration system for preparation of fluids for medical applications

A system that fills multiple containers includes a filter with an inlet port and multiple outlet ports. The outlet ports are pre-attached to containers by respective filling lines of each container. Each container has an interior and each of the respective filling lines is connected to a respective container interior. All of the respective filling lines are sealed to the outlet ports and the containers such that the container interiors are isolated from an external environment except the inlet port, via the filter, forming a combined interior volume which is sterile. The system can produce batches of multiple sterile containers with sterile medicament in the containers.

Dialysis device having means for recognizing a shunt recirculation

A dialysis device having an extracorporeal blood circuit which has an arterial line having a blood pump and an arterial needle for connection to a patient, a venous line having a venous needle for connection to a patient and a dialyzer arranged between the arterial line and the venous line and having a blood chamber and a dialysis fluid chamber is provided. The dialysis device furthermore has a control unit and an extracorporeal blood pressure sensor which is arranged at the suction side of the blood pump. The control unit is configured such that a signal output takes place which indicates the presence of recirculation when a change in the signal of the sensor following a trigger event exceeds a threshold value.

Renal failure therapy system and method for electrically safe treatment
10926018 · 2021-02-23 · ·

A renal failure therapy system (10) includes a dialyzer (102); a blood circuit (100) in fluid communication with the dialyzer (102); a dialysis fluid circuit (30) in fluid communication with the dialyzer (102); a housing supporting the dialyzer (102), the blood circuit (100) and the dialysis fluid circuit (30); and at least one electrical socket (170) held by the housing, the electrical socket (170) providing a voltage output dedicated to a particular voltage type of external electrical device (200) for powering or charging the external electrical device (200), the at least one electrical socket (170) including electrical insulation for protecting a patient while powering the external electrical device (200).

METHOD FOR CALIBRATING A SYRINGE PUMP, SYRINGE PUMP AND APPARATUSES

The present disclosure describes a medical syringe pump and a method for calibrating a medical syringe pump. In some cases the medical syringe pump is configured and/or prepared to execute the method according to the present disclosure, or has been calibrated accordingly. This disclosure also describes a blood treatment apparatus which comprises such syringe pump or is connected to such syringe pump. Furthermore, the present disclosure describes a digital storage medium and/or a computer program product as a computer program.