| 单词 | positive pressure |
| 释义 | > as lemmaspositive pressure positive pressure n. [originally in action of positive pressure , after German positive Druckwirkung (1882 in the passage translated in quot. 1885)] Medicine pressure greater than that of the atmosphere, esp. as used to force air or oxygen into the lungs intermittently to supplement or replace natural inspiration or to treat hypoxia; frequently attributive. ΘΚΠ the world > health and disease > healing > medical treatment > types of treatment generally > [noun] > artificial respiration artificial respiration1788 positive pressure1885 respiratory therapy1964 ventilation1974 1885 I. B. Yeo tr. M. J. Oertel Respiratory Therapeutics ii. 607 (heading) Action of positive pressure on the surface of the thorax. 1970 Jrnl. Pediatrics 76 183 The indications for intermittent positive pressure ventilation were asphyxia on admission, a single asphyxial attack, [etc.]. 1993 New Scientist 10 July 31/1 The trouble with positive pressure breathing for G-protection (PBG), as the technique is called, is that it hampers the return of blood to the heart. < as lemmas |
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