61results about How to "Improve dialysis efficiency" patented technology

A blood purification method that purifies blood taken from a body by blood dialysis or by hemodiafiltration includes the step of changing an osmotic pressure of the blood to an increasing condition until a blood volume (BV level) attains a standard blood volume, in a former part of a blood purification process and the step of maintaining a standard blood volume and periodically changing the osmotic pressure of the blood in a later part of the blood purification process.

A dialysis unit includes both an inlet for guiding dialysis fluid in a direction of flow to a dialyzer membrane and an outlet for discharging dialysate from the dialyzer membrane. A heat pump configured to exchange thermal energy between a heat reservoir and the dialysis fluid in the inlet is coupled to the inlet.

An automatic peritoneal dialysis machine comprises a dialyzate bag, a heater, a waste liquid bag, a safety detector, a first valve, a second valve and a third valve. Dialyzate in the dialyzate bag is heated to the set temperature through the heater, the first valve and the second valve are opened, the third valve is closed, the heated dialyzate flows into an abdominal cavity of a patient, when the pouring amount of the dialyzate reaches the preset value, the first valve is closed, the dialyzate stays in the abdominal cavity of the patient to conduct dialysis and diffusion, when the time that the dialyzate stays in the abdominal cavity of the patient reaches the preset time, the first valve and the third valve are opened, the dialyzate exchanged in the abdominal cavity is led out of the waste liquid bag, and after the amount of the led-out dialyzate is consistent with the amount of the poured dialyzate, the first valve and the third valve are closed. The safety detector leads out the dialyzate exchanged in the abdominal cavity and conducts blood leakage detection on the dialyzate exchanged in the abdominal cavity. The machine effectively ensures the safety state of the patient in the dialysis process, and improves the dialysis efficiency.

The present invention provides an in vitro simulator which can simulate digestion and absorption processes of feed nutrient in the chicken alimentary tract, including maw and peptic digest chamber, small intestine digesting chamber and constant temperature system etc. The feed nutrient is completed by the maw and peptic digest chamber under the digesting course of the maw and peptic; chyme is converted to the small intestine digesting chamber continuously digested after the period of maw and peptic digestion, completing the digestion of the nutrient in the small intestine and the absorption of the digested nutrient, finally achieving the simulation of the digestion and absorption processes of the feed nutrient in the chicken alimentary tract in vitro; the constant temperature system provides heat preservation and vibrating mixture functions for the digestion course of the chyme in the maw, peptic digest chamber, small intestine digesting chamber, simulating the environment temperature of the chicken alimentary tract, gastrointestinal peristalsis and chyme mixture. The chicken in vitro simulating digestion device of the invention has a lower cost, simple operation, quick performance and better palingenesis.

The invention belongs to the fields of membrane surface engineering and bioseparation engineering and aims at providing a method for preparing a low-density lipoprotein affinity adsorption hemodialysis membrane material. The method provided by the invention comprises the following steps: prewashing the hemodialysis membrane material; placing the prewashed hemodialysis membrane material into a plasma processor cavity; introducing inert gas and activated gas until atmosphere ingredients are constant and then carrying out plasma processing; immersing into a heparin solution; adding a coupling agent to carry out an oscillation reaction; carrying out oscillation washing by utilizing a PBS (Phosphate Buffer Solution); and repeatedly washing with clean water and perform filter drying to obtain the low-density lipoprotein affinity adsorption hemodialysis membrane material. In the method provided by the invention, active reaction groups are introduced into by utilizing a constant-pressure and low-temperature plasma activation modification processing method; the reaction is only carried out on the surface of the material, the body performance of the material is not influenced, and simultaneously the method has the characteristics of high efficiency, low cost, low energy consumption, environmental friendliness and the like; the hydrophilia and blood compatibility of the surface of a macromolecule separation membrane material can be greatly improved; and the blockage effect caused by membrane pollution in the hemodialysis course can be effectively reduced.