Karman cannula

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Kar·man can·nu·la

a flexible plastic cannula used in performing early, or menstrual extraction, abortion.
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References in periodicals archive ?
In this situation, a Karman cannula aspiration of uterine contents with rush pathology analysis can help clarify the likely diagnosis and guide therapy.
Women with no documented villi and no decrease in hCG after the Karman cannula aspiration can be presumed to have an ectopic pregnancy.