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Emptying the gallbladder with a trocar when the bile is thick and viscid is not readily accomplished by means of the ingenious Ochsner trocar, unless some form of suction apparatus is attached to the lateral arm of this instrument. In case suction is thus made, the cannula tends to become plugged by the gallbladder mucosa being drawn up against the end of the tube, and further aspiration is prevented until the gallbladder wall is released by making a little positive pressure to force the mucosa away again.
Some time ago Dr. L. L. McArthur remarked to me that an aspirator with one or more holes, so protected that the gallbladder mucosa would be prevented from being drawn up against them, would be a desirable instrument.
It occurred to me that if one constructed a cannula in the form of a fluted metal tube with closed end and multiple openings placed
Straus DC. A NONPLUGGING ASPIRATOR FOR EMPTYING THE GALLBLADDER. JAMA. 1916;LXVII(26):1939–1940. doi:10.1001/jama.1916.25910260002018b
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