The women were taught several methods, such as the cannula method for early stage abortions, and the super coil method used in later stage abortions which caused the women to miscarry, but the most widely used was the D&C (dilation and curettage) method.
The Karman cannula is a soft, flexible cannula (or curette) popularized by Harvey Karman in the early 1970s.
Theodore von Kármán | Karman | Harvey Karman | Kármán line | Janice Karman | Karman line | Karman cannula |