A61M1/3486

Airtrap, system and method for removing microbubbles from a fluid stream

An airtrap for a medical or physiological fluid in one embodiment includes a conical housing having a radius that increases from its top to its bottom when the housing is positioned for operation; a medical or physiological fluid inlet located at an upper portion of the conical housing; a medical or physiological fluid outlet located at a lower portion of the conical housing, the inlet and the outlet positioned and arranged so that medical or physiological fluid spirals in an increasing arc around an inside of the conical housing downwardly from the inlet to the outlet; and a gas collection area located at an upper portion of the conical housing. In another embodiment, the airtrap is shaped like a seahorse having a head section and a tail section. Any of the airtraps herein may be used for example in blood sets, peritoneal dialysis cassette tubing, and drug delivery sets.

Hemocompatible adsorber for the dialysis of protein-bound uremic toxins

A hemocompatible adsorber for separating protein-bound uremic toxins contained in the blood of a patient and having a molecular mass of <500 g/mol regarding their carrier proteins, to adsorb the uremic toxins during hemodialysis. The hemocompatible adsorber including a polymer based on a cyclic oligosaccharide or a derivative thereof which is disposed on a solid carrier component. A device for hemodiafiltration including an extracorporeal circuit for receiving blood to be purified and a hemodialyzer connected to the blood circulation of a patient, wherein a hemocompatible adsorber is provided for separating protein-bound uremic toxins contained in the blood of a patient and having a molecular mass of <500 g/mol regarding their carrier proteins. The hemocompatible adsorber, which is disposed on a solid carrier component in at least one layer on the blood side within the hemodialyzer, includes a polymer based on a cyclic oligosaccharide or a derivative thereof.

Recirculating fluid filtration system

A fluid filtration system comprising a cross-flow filter is arranged to permit a first pump to recirculate part of the retentate of the filter to the inlet of the cross-flow filter and a second pump to return part of the permeate to the inlet of the cross-flow filter. A third pump is configured supply source fluid to the inlet of the filter. The flow path between the second pump and the cross-flow filter inlet may include an adsorption filter that may selectively remove contaminants, toxins, or pathogens in the permeate. A controller may control the first, second and third pumps to provide predetermined flow ratios among the fluid flow paths of the system in order to achieve a desired filtration level. This system may be applicable to the removal of harmful substances from blood, by first separating the plasma from the blood and then removing harmful substances from the plasma.

METHODS OF MAKING CHIMERIC ANTIGEN RECEPTOR-EXPRESSING CELLS
20240024360 · 2024-01-25 ·

The invention provides methods of making immune effector cells (e.g., T cells, NK cells) that can be engineered to express a chimeric antigen receptor (CAR), and compositions and reaction mixtures comprising the same.

Recirculating dialysate fluid circuit for blood measurement

A blood based solute monitoring system for measuring at least one blood solute species that has a first recirculation flow path in fluid communication with a dialyzer. The first recirculation flow path is configured to allow a fluid to recirculate through a dialyzer such that the concentration of at least one solute species in the fluid becomes equilibrated to the solute species concentration of the blood in a blood compartment of the dialyzer. The blood solute monitoring system has at least one sensor to measure a fluid characteristic.

METHOD FOR REMOVING ANTI-AAV ANTIBODIES FROM A BLOOD-DERIVED COMPOSITION

The present invention relates to a method for removing undesired anti-AAV antibodies from a blood-derived composition.

APHERESIS TO REDUCE HIGH BLOOD PRESSURE IN PRE-ECLAMPSIA
20200069861 · 2020-03-05 ·

There are certain factors in the blood of pregnant women with pre-eclampsia that appear to be associated with the disease. These include a soluble variant of the fms-like tyrosine kinase receptor (sFlt-1), soluble Endoglin (sEndoglin), and Endothelin-1. There is also evidence that hypertension may be caused by Na/K ATPase inhibitors such as digitalis-like factor, ouabain-like factors, marinobufogenin and marinobufotoxin. This invention teaches the removal of multiple harmful factors using a combination of targeted apheresis and dialysis and/or ultrafiltration. Harmful factors that are proteins are bound out using immobilized binding agents such as antibodies, aptamers and binding peptides, while small molecule harmful factors are dialyzed out or filtered out. Removal of multiple harmful factors is expected to ameliorate the symptoms of pre-eclampsia and prolong pregnancy.

APPARATUS AND METHOD FOR UREA PHOTO-OXIDATION

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.

APPARATUS AND METHOD FOR UREA PHOTO-OXIDATION

Apparatus and method for photo-chemical oxidation are disclosed herein. In one embodiment, a method for regenerating a dialysis fluid includes: flowing the dialysis fluid between an anode and a cathode of a dialysis system, where the anode comprises a plurality of nanostructures; illuminating the anode with a source of light; flowing oxygen through the cathode toward the dialysis fluid; and converting urea in the dialysis fluid into CO2, N2 and H2O thereby regenerating the dialysis fluid.

DIALYSIS SYSTEM HAVING INDUCTIVE HEATING

A dialysis fluid system includes a dialysis fluid inlet; a dialysis fluid outlet; a pump positioned and arranged to pump dialysis fluid through the dialysis fluid inlet and the dialysis fluid outlet; and an inductive heater located between the dialysis fluid inlet and the dialysis fluid outlet, the inductive heater including a fluid flowpath positioned and arranged to receive non-heated dialysis fluid from the dialysis fluid inlet and to output heated dialysis fluid to the a dialysis fluid outlet, a conductive heater element located within the fluid flowpath so as to be or act as a secondary coil of a transformer, and a primary coil of the transformer located outside of the fluid flowpath and positioned so as to magnetically induce a current into the conductive heater element, causing the conductive heater element and surrounding fluid to heat.