GALVANOCAUTERY

From Big Medical Encyclopedia

GALVANOCAUTERY [galvano (by name L. Galvani ) + Greek kaustikos burning; synonym: galvanothermia, electrocaustic] — a method of cauterization of living tissues by means of special tips (galvanocauters) heated by the electric current passing through them.

Fig. 1. Galvanocauters of various form. 1 — a clip for strengthening of a galvanocauter; 2 — the device for short circuit of current of heat in a galvanocauter; 3 — tips for strengthening of wires; 4 — a galvanocauter.
Fig. 2. Handles of galvanocauters: I \simple; II \with the galvanocauter inserted into it; III \universal with rings for the first, second, third fingers and a cock (the device for short circuit of current); IV \universal with the galvanocauter strengthened in it;

It began to be applied in clinical practice instead of thermocoagulation (see) from the middle of 19 century. Proved and developed a method of a galvanocautery the Gender (Heider, 1845), Krusell (G. S. Crusell, 1846), Middeldorpf (And. Th. Middeldorpf, 1853). By 70 years 20 century G. is forced almost completely out more perfect diathermocoagulation (see). The operating factor of a method G. — heat received as a result of local intensive heating.

Depth and rate of decay of fabrics depend on duration of a touch of a galvanocauter and extent of its heating. By result of impact on fabrics distinguish a galvanotomiya (section) and a galvanokoagulyation. The section is reached at a white incandescence of a galvanocauter (t ° apprx. 1200 °). At the bystry movement of the tool there is a section to education on its edges of the thin film (scab) — acusection. During the use of a red kaleniye (t ° apprx. 600 °) formation of a thick scab happens.

It is applied to destruction of small benign tumors, papillary growths, removal of polyps, in a ftiziokhirurgiya — to a perezhiganiye of pleural commissures (see. Thoracocautery ); in dermatology and cosmetology — for removal of smallpox hems; in otorhinolaryngology — for treatment hron, tonsillitis. For destruction of more deeply located educations use the electrode in the form of a needle entered into the fabric which is subject to destruction (akidogalvanokaustik).

For G.'s carrying out use galvanocauteric set, to-ry consists of a source of a direct current of 60 — 80 in, a rheostat, galvanocauters, various in a form, with handles, an electric cable. A galvanocauter loops, a hook make usually of platinoiridiyevy alloy or stainless steel in the form of an olive, buttons, the cylinder, a cone, etc. (fig. 1). Handles of a galvanocauter also have various form (fig. 2). Will sterilize the tool in vapors of formalin or in alcohol. The tool is brought to the place of cauterization by cold and heated in close proximity to it.

The relative contraindication for G. — proximity of large vessels, damage to-rykh is fraught with bleeding or thrombosis.

See also Cauterizations .

G. B. Katkovsky.

Яндекс.Метрика