Device to stop bleeding in living human and animal tissue

A device to stop bleeding in live human and animal tissue and to form an escarre by means of a plasma jet, characterized in that

• the device comprises means for the generation of plasma, comprising an electrically conductive body (6) having the appearance of a pencil and formed with a tip (7) for forming the required cross-section of the plasma jet, said body (6) being connected to a positive pole of a gas power source having a positive potential,
• the body (6) comprises a cylindrical channel (17) for heating the plasma-generating gas, said channel being formed from a number of sections (8, 9, 10) which are electrically insulated from each other and each one of which is connected to the body (6) via electrically insulated bushes (22) which are concentric with the sections (8, 9, 10) and which are formed with channels (19) designed to conduct cooling liquid to and from the gas-heating channel (17),
• said sections (8, 9, 10), except the outermost one (10), having an equal channel cross-section d.sub.c and the same channel length l.sub.n, n being the number of sections calculated from the cathode (13, 14), the number of said sections having to be at least three in addition to which the length of each subsequent section, separated from the cathode (13), must amount to l.sub.n =n.d.sub.c,
• the outermost section (10), which is arranged to shape the plasma jet, is connected with the tip portion (7) of the body (6) and, in order to stop bleeding from surgical wounds, has a channel cross-section equalling d.sub.f determined by the kind of plasma-generating gas and the species of the biological tissue, said channel, in order to dissect biological tissue, being shaped as two co-axial cylindrical bores (17, 18) the entrance cross-section of which equals the cross-section d.sub.c of all preceding sections (8, 9) and the cross-section d.sub.f at the exit of which equals 0.4-0.6 mm and the length l of which equals (1.5-2.0).times.d.sub.f.