Operative surgery . erliaps being the more favored of the two, because it has thesmaller bite, and obstructs less the field and view of the operator. Theseinstruments are strong, convenient, serviceable, and cleanly, and thereforehave superseded almost entirelythe use of the older with blunt points are bet-ter aids in the proper placing ofa ligature than are those withslender points, for obvious rea-sons. The T-shaped one is some-times employed to check oozingof extended surfaces. The Cautery.—Cautery, whichwas once a common means of controlling haemorrhage, has now but a limited
Operative surgery . erliaps being the more favored of the two, because it has thesmaller bite, and obstructs less the field and view of the operator. Theseinstruments are strong, convenient, serviceable, and cleanly, and thereforehave superseded almost entirelythe use of the older with blunt points are bet-ter aids in the proper placing ofa ligature than are those withslender points, for obvious rea-sons. The T-shaped one is some-times employed to check oozingof extended surfaces. The Cautery.—Cautery, whichwas once a common means of controlling haemorrhage, has now but a limited application for this are three varieties in common use—the actual, the thermo-, and elec-tro-cauteries. The actual cautery requires the employment of cautery irons(Fig. 107), which should be accompanied by the blowpipe and lamp, al-though they can be heated by ordinary measures. The blowpipe is by farthe best means, since during the summer months, or in unfavorable situa-tions, or when great haste. Fig. 106.—Foreipressure. =^ is necessary, the domesticmeans of heating them willbe inadequate. Therm ic Anglo t ripsy.—Downes combines heatand the angiotribe, thuscontrolling haemorrhage inmajor operations in a sat-isfactory way.* Thermo-Cautery.—ThePaquelin cautery consistsof an isolated hollow han-dle adapted to three mov-able platinum points, intoeither of which a continu-ous stream of benzinevapor is introduced by abulb connected by a tubewith the bottle containing the fluid (Fig. 108), after the cautery is lieatedin the flame of a spirit lamp. The use of this mechanism brings the platinumpoint quickly to the required temperature, which is maintained by squeezingthe rubber bulb. If the benzine vapor he introduced into the platinum point
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