title: [Characteristics of mechanical effects of obstetric perineal speculum on the perineal tissues in labor].
abstract: The paper is concerned with a mathematical analysis of the use of the compact and latticed obstetrical perineal speculum at delivery. Preference is given to a novel latticed speculum that reduces two-fold the number of perineal ruptures in the primipara.
authors.forename: A I
authors.initials: AI
authors.lastname: Stupko
authors.forename: S A
authors.initials: SA
authors.lastname: Maĭko
authors.forename: O A
authors.initials: OA
authors.lastname: Khodasevich
mesh_terms: D000328:Adult; D001720:Birth Injuries / Q000517:prevention & control; D005069:Evaluation Studies as Topic; D005260:Female; D006801:Humans; D007231:Infant, Newborn; D007743:Labor, Obstetric; D008954:Models, Biological; D007744:Obstetric Labor Complications / Q000517:prevention & control; D009774:Obstetrics / Q000295:instrumentation*; D010502:Perineum / Q000293:injuries; D011247:Pregnancy
vernacular_title: Issledovanie osobennosteĭ mekhanicheskogo vozdeĭstviia akusherskikh promezhnostnykh zerkal na tkani promezhnosti v rodakh.