METHOD OF TREATMENT OF DESTRUCTIVE FORMS OF PULMONARY TUBERCULOSIS AND UNIT FOR ITS ACCOMPLISHMENT Russian patent published in 1996 - IPC

FIELD: medicine and medical equipment; can find a wide application in the field of treatment of cavernous and fibrocavernous forms of tuberculosis and other diseases of lungs. SUBSTANCE: after paracentesises of the cavern its internal cavity is subjected to defocused pulse radiation of a nitrogen laser with a wavelength of 337 nm, energy density of 200 μJ/sq.cm in pulse-periodic conditions at a controlled pulse repetition frequency, depending on the degree of lesion of lungs, providing for irradiation at a mean power density of 10 to 15 mW/sq.cm for 3 to 4 min. Supervisions have shown good bearability of irradiation by patients. The results of microbiological examinations prove a full abacillation of patients. The results of X-ray analysis show a reduction of the cavern cavity of a part of patients at least by two times in 1.5 to 2 months. Besides, at preset parameters radiation of the nitrogen laser with a wavelength of 337 nm, equally with bactericidal action, possesses a stimulating effect on microcirculation in the focus of action, causes clinical improvements of the client's state, reduction of the period of treatment. The unit for treatment of destructive forms of pulmonary tuberculosis uses nitrogen laser 1 with a radiator and power supply source, gas system, control system, focusing arrangement, fibre-optic light conduit with an optical diffuser. The radiator is made as a sealed current-conducting casing, accommodating a plasma sheet formed by a dielectric plate, initiating electrode and electrode electrically connected to the casing. A high-voltage pumping system is installed on the casing side surface, with the electrode connected to it. After paracentesis of the cavern a beam of control pulses is directed to the pumping system by the aspirating needle, it actuates the system after which plasma of the surface discharge gets ignited. Inversion of nitrogen molecules population occurs in the discharge plasma. Radiation is formed by the laser resonator that is coaxial to the plasma sheet and formed by the mirror and lens flat face. Passing through the lens radiation is focused on the inlet end face, transferred through the light conduit and diffused by the spherical diffuser onto the cavern. Due to a high energy contribution provided in the discharge of the plasma sheet, limitations to the value of output energy and pulse repetition frequency, and, consequently, to the maximum size of the irradiated cavern are removed, the unit overall dimensions and mass are considerably reduced. EFFECT: reduced period of treatment, enhanced efficiency and reduced traumaticity of the method and reduced mass and overall dimensions of the unit. 4 cl, 5 dwg