Surgery – Truss – Perineal
Patent
1989-10-12
1990-12-18
Apley, Richard J.
Surgery
Truss
Perineal
128 24R, 128 30, A61H 3102
Patent
active
049778897
ABSTRACT:
Persons having respiratory diseases often have treatment programs including a pummeling of the thoracic cavity for the purpose of aiding respiration. A vest as a part of an alternating compression machine is used to eliminate the need for trained physical therapists and rather provide for mechanical thumping. A fitting routine for the vest is provided. A routine for identifying optimal operating frequencies for the machine is also provided, along with an algorithm for selecting appropriate frequencies.
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patent: 4838263 (1989-06-01), Warwick et al.
Zamir Hayek, M.D., "External High Frequency Oscillation-A New Concept in Ventilation", pp. 1-16, Jul. 8, 1989, Tokyo, Japan.
Monica Gutierrez et al., "Weekly Cuirass Ventilation Improves Blood Gases and Inspiratory Muscle Strength in Patient with Chronic Air-Flow Limitation and Hypercarbia", pp. 617-623, American Review of Respiratory Disease, vol. 138, 1988.
Nicholas S. Hill, M.D., F.C.C.P., "Today's Practice of Cardiopulmonary Medicine-Clinical Applications of Body Ventilators", pp. 897-905, Chest, vol. 90, No. 6, 1986.
Jacques Piquet et al., "High Frequency Transthoracic Ventilation Improves Gas Exchange During Experimental Bronchoconstruction in Rabbits", pp. 605-608, American Review of Respiratory Disease, vol. 133, 1986.
Zamir Hayek et al., "External High Frequency Oscillation in Cats", pp. 630-634, American Review of Respiratory Disease, vol. 133, 1986.
M. King et al., "Enhanced Tracheal Mucus Clearance with High Frequency Chest Wall Compression", pp. 511-515, American Review of Respiratory Disease, vol. 128, 1983.
P. E. Krumpe et al., "Comparison of the Effects of Continuous Negative External Chest Pressure and Positive End-Expiratory Pressure on Cardiac Index in Dogs", pp. 39-45, American Review of Respiratory Disease, vol. 128, 1983.
Commercial Brochure entitled "The Hayek Oscillator", Published by Flexco Medical Instruments, Kirchweg 151, 8102 Oberengstringen, Zurich, Switzerland.
Apley Richard J.
Dvorak Linda C. Maas
Regents of the University of Minnesota
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