IT is not easy to make accurate measurements of the minute volume delivered by an IPP respirator Cooper, 1959). Even the electronic integrating pneumotachygraph (Pressey, 1952) has the disadvantages of bulk, fire risk, complexity, and the likelihood of error arising from zero drift. Further, its calibration factor is a function of the physical properties of the gases passing. In anaesthesia the...

Two applications of the hybrid simulators have been presented as examples: nonpulsatile VAD interaction with lumped parameters cardiovascular system numerical model and respirator interacting with the Dubois numerical model of obstructive lung diseases. The results of simulations showed how the tested assist devices change biological system assist device characteristics in the course of heart o...

Purpose A three-dimensional (3D) printed custom-fit respirator mask has been proposed as a promising solution to alleviate mask-related injuries and supply shortages during COVID-19. However, creating computer-aided design (CAD) model for each is currently manual process thereby not scalable pandemic crisis. This paper aims develop novel reduce overall cost time, thus enabling the mass customis...

During the beginning of SARS-CoV-2 pandemic, there was a shortage masks and respirators for protection health care professionals. Masks noninvasive ventilation (NIV) in combination with viral-proof filters, worn by healthcare workers, could serve as an alternative measure. We determined simulated factor (SPF) such devices comparison to conventional surgical masks, N95, FFP3 respirators. were mo...

A 65-year-old woman with rheumatoid arthritis treated by tocilizumab (TCZ) presented with tongue squamous cell carcinoma. While surgery was performed without any complications the aspiration pneumonia rapidly worsened by postoperative day 2 and severe pulmonary suppuration in the right lung field with infection-induced systemic inflammatory response syndrome (SIRS) was diagnosed. Antibiotic and...

Authors’ address: Howard S. Gruber and Marshall H. Klaus, Case Western Reserve School of Medicine, Department of Pediatrics, Cleveland, O. (USA) Thirty-six infants (mean birthweight 1709 g) with severe HMD were treated with intermittent mask and bag ventilation as an alternative to the mechanical respirator. Previous therapy with oxygen, NaHCO7⁄8, glucose infusion and thermoregulation was judge...