Word: cannula
(lookup in dictionary)
(lookup stats)
Dates: during 1970-1979
Sort By: most recent first
(reverse)
...from similar procedures performed in clinics in New York and other states where abortion is legal. Vacuum aspiration, as usually done, requires dilation of the cervix under local anesthesia. Menstrual extraction requires little or no dilation in most cases. Instead, a thin (diameter: 4 mm.), flexible plastic tube, or cannula, is inserted through the cervix and into the uterus, and most of the uterine lining is then removed by means of suction or a specially designed syringe...
...quick curettage, is minimal. Pain is all but eliminated in a refinement of vacuum aspiration developed by Harvey Karman, a Los Angeles psychologist: for pregnancies of less than ten weeks' duration, doctors use a thin plastic tube that is smaller in diameter than the more commonly used cannula. This avoids the dilatation process entirely...