title: [Design and production problems with stethophonoendoscopes].
abstract: The existing stethophonendoscope models with separate stethoscopic and phonendoscopic heads fail to give adequate reproduction of processes under investigation within the auscultation frequency range with intensity sufficient for reliable diagnosis. The Leningrad industrial association "Krasnogvardeets" offers a new stethophonendoscope design with a head reproducing acoustic signs at a necessary intensity level within a wide frequency range. These stethophonendoscopes can be manufactured serially because their most complicated and functionally responsible elements are strictly unified for different models.
mesh_terms: D001314:Auscultation / Q000295:instrumentation*; D019723:Endoscopes; D014586:USSR
vernacular_title: Voprosy konstruirovaniia i proizvodstva stetofonendoskopov.