The present invention provides a devicethat protects the tissue in the posterior part ofthe introitus vaginae, i.e. the commissura posterior.The origin of perineal tear starts here when thesegment is stretched to double or triple its lengthduring delivery of the head. Tears can be moreextensive into the perineal body, continue into the analsphincter and in worse cases even through thewhole perineum into the anal canal. In use thedevice may protect against perineal tears of the posteriorvaginal wall into the mucosa, perineal skin,muscles, even more profound down to the analsphincter muscle and into the rectum and the rectalmucosa.
