There are three main types of dialysis used in medicine: hemodialysis, peritoneal dialysis and colonic dialysis.
Hemodialysis:
Hemodialysis, or hemodialysis for short, is also known as artificial kidney or dialysis, and is a type of blood purification technology. Hemodialysis utilizes the principle of semi-permeable membrane to purify the blood by dispersing and convecting all kinds of harmful as well as excess metabolic wastes and excessive electrolytes out of the body, and to correct the water electrolyte and acid-base balance.
The thickness of the semi-permeable membrane used in hemodialysis is 10-20 microns, and the average pore size of the membrane is 3 nanometers, so only small molecules with molecular weights below 15,000 and some intermediate molecules are allowed to pass through it, while large molecules with molecular weights greater than 35,000 cannot pass through it. Therefore, proteins, pyrogens, viruses, bacteria and blood cells are not permeable; most of the components of urine are water, and to replace the kidney with an artificial kidney, a large amount of water must be eliminated from the blood, and the artificial kidney can only utilize osmolality and ultrafiltration pressure to achieve the purpose of removing excessive water. The artificial kidneys used, i.e. hemodialysis devices, are equipped with these functions to regulate the quality and quantity of the blood to a near-physiological state.
Note: Hemodialysis, Hemo means blood, and dialysis comes from a Greek word meaning the release of certain substances.
Peritoneal dialysis:
Peritoneal dialysis is the use of the peritoneum as a semi-permeable membrane, the use of gravity will be prepared dialysis solution through the catheter instilled into the peritoneal cavity of the patient, so that there is a difference in the concentration of solutes gradient in the peritoneal membrane on both sides of the side of the solute, high concentration side of the solute to the side of the concentration of the low concentration of solutes move to the side of the diffusion (diffusive effect); the water is moving from the hypo-osmotic side of the side of the hypertonic side of the water (osmotic effect). Through the peritoneal dialysis fluid is constantly replaced, in order to achieve the purpose of removing the body metabolites, toxic substances and correcting the water and electrolyte balance disorders.
Colon dialysis:
Colon dialysis is by injecting filtered water into the human colon for cleansing and washing, removing toxins from the body, fully expanding the contact area between the colon mucosa and the drugs, and then injecting the special medication, so that the medication will adsorb all kinds of toxins from the body through the colon mucosa and be discharged in time, and then finally instill the special traditional Chinese medicinal preparations, and be retained, and then utilize the effective ingredients of the drugs to be absorbed by the colon mucosa in the colon. Colonic mucosa to absorb the active ingredients of the drug, play a role in the treatment of the kidneys, and can lower the reversal of turbidity, reduce blood creatinine and urea nitrogen, uric acid and other uremic toxins.