METHODS OF PERCUTANEOUS HYDRODYNAMIC NEUROLYSIS OF PERIPHERAL NERVES UNDER ULTRASOUND CONTROL Russian patent published in 2023 - IPC A61B17/00 

FIELD: medicine; neurology; surgery.

SUBSTANCE: group of inventions can be used for percutaneous hydrodynamic neurolysis of peripheral nerves under ultrasound control. The scars and adhesions of the nerve are exposed to hydrodynamics by introducing medical fluid solutions for neurolysis and endoneurolysis between the scars and adhesions and the nerve. With the help of an ultrasound sensor, visualization of cicatricial adhesive changes adjacent to the peripheral nerve is performed. The syringe is filled with liquid for neurolysis and endoneurolysis. The skin in the intervention area is treated with antiseptic solutions, and after preliminary local anesthesia, the skin is punctured with a needle. Under ultrasound imaging, the position of the needle in relation to the nerve and its advancement to the area of cicatricial adhesive changes on the monitor of the ultrasound machine are controlled. When advancing the needle, fluid is sent from it for neurolysis and endoneurolysis. Epineurally, between the nerve and scar tissue, fluid is injected from a syringe needle for neurolysis and endoneurolysis, exfoliating the nerve trunk from external scars, using ultrasound imaging to control the formation of a fluid hypoechoic space between the peripheral nerve and scar tissues. The impact on scars and adhesions localized inside the peripheral nerve trunk is performed by passing the needle into the nerve trunk in the area of endoneural scars, fluid is injected from the syringe needle for neurolysis and endoneurolysis, destroying internal scars directly inside the nerve trunk.

EFFECT: invention provides elimination of the pathological effect of cicatricial adhesive changes on peripheral nerves due to the direct hydrodynamic pressure of the fluid when the needle is advanced and directly during neurolysis.

2 cl, 3 dwg