Patent ID: 7389776

Claim:
An endovascular method of treating a patient suffering from Alzheimer's disease comprising the steps of: conducting preoperative examination of the patient for detecting changes that occurred in the patient's brain in connection with Alzheimer's disease and for defining angioarchitechtonica of the arteries and capillaries in the affected zone of the brain; providing a microcatheter device comprising at least a first channel and a second channel, a plurality of microcatheters of gradually reducing diameters for coaxial insertion one into another through the first channel, a light-guiding optical-fiber device connected to a low-power laser source and insertable into the innermost of said plurality of microcatheters, and a source of a washing liquid for the supply into the area being treated through the second channel; puncturing and catheterizing the common femoral artery of the patient for installing an introducer; inserting a first microcatheter of said plurality of microcatheters into the introducer; coaxially inserting and moving forward a second microcatheter of said plurality of microcatheters into the first microcatheter; coaxially inserting and moving forward a third microcatheter of said plurality of microcatheters into the second microcatheter; if necessary, sequentially inserting and moving forward other microcatheters of said plurality of microcatheters into the preceding microcatheter until reaching the affected zone of the microcirculation bloodstream in the patient's brain; inserting the light-guiding optical-fiber device coaxially into the innermost catheter of said plurality of microcatheters; guiding the light-guiding optical-fiber device to the affected zone through the innermost catheter; and restoring the circulation and collateral bloodstream in the brain with regeneration of the surrounding brain tissue by conducting laser treatment of the affected zone through a coronary blood vessel adjacent to the affected zone.