DEVICE FOR PLASMA-ARC CUTTING OF BIOLOGICAL TISSUES

• Main Authors: BERESNEV, ALEXEI SERGEEVICH, SAVELIEV, VIKTOR SERGEEVICH, VOLKOEDOV, VALERY SERGEEVICH, STUPIN, IGOR VIKTOROVICH, SERYKH, LEONID AFANASIEVICH
• Format: Patent
• Language: English; French; German
• Published: 12.12.1988
• Edition: 4
• Subjects: CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; DIAGNOSIS; ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; HUMAN NECESSITIES; HYGIENE; IDENTIFICATION; MACHINE TOOLS; MEDICAL OR VETERINARY SCIENCE; METAL-WORKING NOT OTHERWISE PROVIDED FOR; PERFORMING OPERATIONS; PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OFNEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMICBEAMS; SOLDERING OR UNSOLDERING; SURGERY; TRANSPORTING; WELDING; WORKING BY LASER BEAM

PCT No. PCT/SU86/00077 Sec. 371 Date Apr. 8, 1988 Sec. 102(e) Date Apr. 8, 1988 PCT Filed Aug. 11, 1986 PCT Pub. No. WO88/01218 PCT Pub. Date Feb. 25, 1988.The device includes a cathode assembly (1) having a housing (3) and an electrode (6) with a tapering portion (19), and an anode assembly (2) having a housing (20) and a nozzle (12) receiving the tapering portion (19) of the electrode (6), the nozzle (12) successively defining a cylindrical chamber (11), a tapering chamber (21), an arcing chamber (7) and a plasma jet forming chamber (23). The smaller end of the frustoconical tapering portion (19) of the electrode (6) is the end face of the electrode (6) received in the cylindrical and tapering chambers (11 and 21) so that the distance from the end face of the electrode (6) to the arcing chamber (7) equals 0.1 to 0.5 of the length of the tapering chamber (21), and the length of the tapering portion (19) of the electrode (6) is 3.5 to 4.5 times the diameter of the electrode (6).