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The slightest scratch given the intima during the manipulations required in any blood-vessel work almost invariably spells failure in the form of a thrombus. Sharp-pointed instruments are, therefore, scrupulously avoided in all such work. Indeed, most men find their fingers the best and safest of all instruments.
But since the work can at times be facilitated by a delicate pair of forceps, I have had one constructed which has a small, polished metal knob about the size of an ordinary pin-head on each end. These knobs enable one to grasp the vessel firmly without doing the slightest damage to the intima.
BERNHEIM BM. A NEW BLOOD-VESSEL FORCEPS. JAMA. 1911;LVII(16):1263. doi:10.1001/jama.1911.04260100089005
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