Operative surgery . nic. The organiccomprise the hemp, silk,and catgut varieties, and for convenience should not be less than twelveto sixteen inches in length, and longer, even, should circumstances ligature should be of sufficient strength to withstand the traction neces-sary to meet the demandfor its use. Its size shoulddepend somewhat upon theforce to be employed in thetying and the area of theseat of constriction. Therequisite force to properlyocclude a vessel can notbe practically estimated byounces, but is largely amatter of observation. Thetraction should be madesteadily over
Operative surgery . nic. The organiccomprise the hemp, silk,and catgut varieties, and for convenience should not be less than twelveto sixteen inches in length, and longer, even, should circumstances ligature should be of sufficient strength to withstand the traction neces-sary to meet the demandfor its use. Its size shoulddepend somewhat upon theforce to be employed in thetying and the area of theseat of constriction. Therequisite force to properlyocclude a vessel can notbe practically estimated byounces, but is largely amatter of observation. Thetraction should be madesteadily over the ends ofthe forefingers or thumbs,and without disturbing therelation of the vessel to itssurrounding parts (). The giving away ofthe inner coat of a vesselindicates that the ligature is drawai sufficiently tight, but this sensation is not noticeable except in con-nection with the larger vessels. The firm apposition of the surfaces of theinner coat without division is adequate for the purpose, but in usual. Fig. 111.—Head-lamp for illumination. 82 OPERATIVE SURGERY.
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Keywords: ., bookauthorbryantjosephdjosephde, bookcentury1900, bookdecade1900
