Comment on “Panicker’s Vacuum Suction Hemostatic Device for Treating Postpartum Hemorrhage”

Excerpt

Any vacuum suction cannula system for atonic PPH works on the following principle. After insertion of the cannula into the uterine cavity, when negative pressure applied, soft cervical tissues get sucked into the small holes of cervical portion of the cannula and become adherent. This results in the formation of closed uterine cavity (Fig. 1 ). Further application of negative pressure results in constriction, contraction and firm retraction of uterus on the surface of the cannula which stops atonic bleeding [1]. Without achieving closed uterine cavity, it is not possible to create effective negative pressure inside the uterus. Purwosunu et al. [ 2 ] used inflatable water bulb to achieve closed uterine cavity in their device to stop atonic bleeding.

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