FIELD: production of medical instruments. SUBSTANCE: method includes extrusion of molten liquid containing cellulose acetate, solvent for cellulose acetate and nonsolvent of cellulose acetate to produce extruded membrane, and removal of solvent and nonsolvent from extruded membrane to have semipermeable membrane featuring water permeability. After removal of solvent and nonsolvent, semipermeable membrane is impregnated with liquid consisting of water to impart to semipermeable membrane the ability of its storage up to moment of its use with preservation of water permeability of semipermeable membrane. EFFECT: simplified process when membranes feature needed working characteristics, for instance, in processes of medical separation, or in blood purification. 10 cl, 1 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| FROM-MELT FORMED POLYSULFONE SEMIPERMEABLE MEMBRANES AND METHOD OF PREPARATION THEREOF | 1997 |
|
RU2198725C2 |
| CELLULOSE ACETATE SEMIPERMEABLE DIAPHRAGM IN THE FORM OF HOLLOW FIBRE, METHOD OF MANUFACTURE OF HOLLOW-FIBRE SEMIPERMEABLE CELLULOSE ACETATE DIAPHRAGM, HEMODIALYZER AND APPARATUS FOR TREATMENT OF EXTRACORPOREAL BLOOD | 1993 |
|
RU2108144C1 |
| METHODS FOR ENTERING OPERATION INSTRUCTIONS INTO ARTIFICIAL KIDNEY AND DEVICE FOR PERFORMING HEMODIALYSIS | 1993 |
|
RU2145884C1 |
| POWDER CASSETTE FOR DIALYZER | 1996 |
|
RU2158608C2 |
| POROUS MEMBRANE FROM VINYLIDENE FLUORIDE RESIN AND METHOD OF ITS PRODUCTION | 2007 |
|
RU2440181C2 |
| DEVICE USABLE IN DIALYZER | 1996 |
|
RU2159634C2 |
| POLYSULFONE-BASED HOLLOW-FIBER MEMBRANE AND METHOD OF MANUFACTURING THEREOF | 1993 |
|
RU2113273C1 |
| HOLLOW FIBER MEMBRANE BLOOD PURIFICATION DEVICE | 2014 |
|
RU2648027C1 |
| POLYANILINE MEMBRANES FORMED BY PHASE INVERSION FOR FORWARD OSMOSIS APPLICATIONS | 2014 |
|
RU2673534C2 |
| HOLLOW-FIBER MEMBRANE FOR USE IN AN INHALATION ANESTHESIA SYSTEM | 2017 |
|
RU2705083C1 |
