05/07/2021
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Oxygen Concentrator āĻā§āϰ⧠āĻāϰāĻžāϰ āĻĒā§āϰā§āĻŦā§ āϝ⧠āĻŦāĻŋāώāϝāĻŧāĻā§āϞ⧠āĻāĻžāύāĻž āĻ
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āύā§āĻā§āĻ Oxygen Concentrator āĻŽā§āĻļāĻŋāύ āĻā§āϰ⧠āĻāϰāĻžāϰ āĻāĻĨāĻž āĻāĻŋāύā§āϤāĻž āĻāϰāĻā§āύāĨ¤
Oxygen Concentrator āĻāĻŋ?
Oxygen Concentrator āĻāĻŽāύ āĻāĻāĻāĻŋ āĻŽā§āĻļāĻŋāύ āϝāĻž āĻŦāĻžāϝāĻŧā§āĻŽāĻŖā§āĻĄāϞ āĻĨā§āĻā§ āĻŦāĻžāϤāĻžāϏ āύāĻŋāϝāĻŧā§ PSA āĻĒāĻĻā§āϧāϤāĻŋāϤ⧠āĻĒāϰāĻŋāĻļā§āϧāύ āĻāϰ⧠āĻŦāĻŋāĻļā§āĻĻā§āϧ āĻ
āĻā§āϏāĻŋāĻā§āύ āϏāϰāĻŦāϰāĻžāĻš āĻāϰā§āĨ¤ āĻāĻŽāϰāĻž āĻāĻžāύāĻŋ āĻāĻŽāĻžāĻĻā§āϰ āĻŦāĻžāϝāĻŧā§āĻŽāύā§āĻĄāϞ⧠⧍⧧ āĻļāϤāĻžāĻāĻļ āĻ
āĻā§āϏāĻŋāĻā§āύ, ā§ā§Ž āĻļāϤāĻžāĻāĻļ āύāĻžāĻāĻā§āϰā§āĻā§āύ āĻāĻŦāĻ ā§§ āĻļāϤāĻžāĻāĻļ āĻ
āύā§āϝāĻžāύā§āϝ āĻāĻĒāĻžāĻĻāĻžāύ āĻĨāĻžāĻā§āĨ¤ Oxygen Concentrator āĻŦāĻžāϤāĻžāϏā§āϰ āύāĻžāĻāĻā§āϰā§āĻā§āύ āĻā§ āĻ
āĻĒāϏāĻžāϰāĻŖ āĻāϰ⧠Concentrated āĻ
āĻā§āϏāĻŋāĻā§āύ āϏāϰāĻŦāϰāĻžāĻš āĻāϰā§āĨ¤
Oxygen Concentrator āϏāĻžāϧāĻžāϰāύāϤ ⧍ āϧāϰāύā§āϰ āĻšā§ā§ āĻĨāĻžāĻā§
ā§§āĨ¤ Continuous Flow Machine (āĻāĻāĻŋ ⧍ āϧāϰāύā§āϰ)
a) Continuous Flow with steady concentration (95%)
Specification: 5 LPM, 8 LPM, 10 LPM Machine (āϝāϤ LPM āĻ Flow āĻĨāĻžāĻā§āĻ āϏāĻŦāϏāĻŽā§ 90-95% āĻŦāĻŋāĻļā§āĻĻā§āϧ Oxygen āĻĻāĻŋāĻŦā§)
āĻŦā§āϝāĻŦāĻŦāĻšāĻžāϰ: COVID-19 Associated Pneumonia, Pneumonia, Severe Asthma, Acute Respiratory distress syndrome (ARDS), Bronchopulmonary dysplasia (BPD) etc.
b) Continuous Flow with decreasing concentration (30-90%)
Specification: 1-6 LPM Or 2-9 LPM Machine etc. (Flow āĻŦāĻžā§āĻžāϰ āϏāĻžāĻĨā§ āϏāĻžāĻĨā§ concentration āĻāĻŽāϤ⧠āĻĨāĻžāĻāĻŦā§) āĻ
āϰā§āĻĨāĻžā§ āϝāĻāύ 1 Liter per Minute (LPM) āĻ āĻāϞāĻŦā§ āϤāĻāύ Oxygen āĻĻāĻŋāĻŦā§ 85-90%, āϝāĻāύ 2 LPM āĻ āĻāϞāĻŦā§ āϤāĻāύ Oxygen āĻĻāĻŋāĻŦā§ 65-70%... āĻāĻāĻžāĻŦā§ LPM āĻŦāĻžā§āĻžāύā§āϰ āϏāĻžāĻĨā§ āϏāĻžāĻĨā§ āϝāĻāύ 6-9 LPM āĻ āĻāϞāĻŦā§, āϤāĻāύ Oxygen percentage āĻĨāĻžāĻāĻŦā§ 30% āĻŦāĻž āϤāĻžāϰāĻ āĻāĻŽāĨ¤ āϝāĻž COVID-19 Associated Pneumonia āϤ⧠āϤā§āĻŽāύ āĻā§āύ āĻāĻžāϰā§āϝāĻāϰ⧠āύā§āĨ¤
āĻŦā§āϝāĻŦāĻšāĻžāϰ: Chronic obstructive pulmonary disease (COPD), Cystic fibrosis, Sleep Apnea etc.
⧍āĨ¤ Pulse Flow Machine: āĻāĻ āĻŽā§āĻļāĻŋāύ āϰā§āĻā§ āϝāĻāύ āĻļā§āĻŦāĻžāϏ āύāĻŋāϤ⧠āϝāĻžā§ āϤāĻāύ āĻāĻāĻāĻŋ Special Sensor āϤāĻž āϏāύāĻžāĻā§āϤ āĻāϰ⧠āĻāĻŦāĻ āĻļā§āĻŦāĻžāϏā§āϰ āĻļā§āϰā§āϤ⧠āĻ
āĻā§āϏāĻŋāĻā§āύā§āϰ Bolus (Pulse Dose) āϏāϰāĻŦāϰāĻžāĻš āĻāϰā§āĨ¤ āϏāĻžāϧāĻžāϰāĻŖāϤ āϝāĻžāĻĻā§āϰ āĻŦāĻšā§āĻĻāĻŋāύ āϧāϰ⧠āĻŦāĻž āĻĻāĻŋāύā§āϰ āĻ
āύā§āĻāĻāĻž āϏāĻŽā§ āĻ
āϞā§āĻĒ āĻĒāϰāĻŋāĻŽāĻžāύ⧠Oxygen āϞāĻžāĻā§, āĻāĻ āĻŽā§āĻļāĻŋāύ āĻāĻŋ āϤāĻžāĻĻā§āϰ āĻāύā§āϝāĨ¤
āϰā§āĻā§āĻā§ āĻ
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ā§§āĨ¤ āĻĒā§āϰāϤāĻŋ āĻŽāĻŋāύāĻŋāĻā§ āĻ
āĻā§āϏāĻŋāĻā§āύ āĻĒā§āϰāĻŦāĻžāĻšā§āϰ āĻĒāϰāĻŋāĻŽāĻžāĻŖ (LPM)
⧍āĨ¤ āĻ
āĻā§āϏāĻŋāĻā§āύā§āϰ āĻŦāĻŋāĻļā§āĻĻā§āϧāϤāĻž ( Percentage of concentration)
World Health Organization āĻāϰ āĻāĻžāĻāĻĄāϞāĻžāĻāύ āĻ
āύā§āϝāĻžāϝāĻŧā§ Covid-19 āϰā§āĻā§āϰ āĻāĻŋāĻāĻŋā§āϏāĻžā§ āϝ⧠āĻ
āĻā§āϏāĻŋāĻā§āύ āĻĻā§āĻā§āĻž āĻšā§ (Oxygen Therapy) āϤāĻžāϰ āĻāύā§āϝ Oxygen Concentration āĻ
āĻŦāĻļā§āϝāĻ 82%-95% āĻāϰ āĻ
āϧāĻŋāĻ āĻšāĻā§āĻž āĻĒā§āϰāϝāĻŧā§āĻāύāĨ¤ āϏāĻžāĻĨā§ āĻāĻ āĻŦāϞāĻž āĻāĻā§ Oxygen Concentration 82% āĻāϰ āύāĻŋāĻā§ āĻšāϞ⧠āϤāĻž āĻŦā§āϝāĻŦāĻšāĻžāϰ āĻāϰāĻž āĻāĻāĻŋā§ āύā§āĨ¤ āĻāϞā§āϞā§āĻā§āϝ āϝ⧠āĻ
āĻā§āϏāĻŋāĻā§āύ āϏāĻŋāϞāĻŋāύā§āĻĄāĻžāϰā§āϰ āĻŽāĻžāϧā§āϝāĻŽā§ āĻāĻŽāϰāĻž 95-100% āĻŦāĻŋāĻļā§āĻĻā§āϧ āĻ
āĻā§āϏāĻŋāĻā§āύ āĻĒā§ā§ā§ āĻĨāĻžāĻāĻŋāĨ¤ Oxygen Concentrator āĻāϰ āĻā§āώā§āϤā§āϰ⧠āĻļā§āϧā§āĻŽāĻžāϤā§āϰ (ā§§-a) Continuous Flow with steady concentration āĻāϰ āĻŽāĻžāϧā§āϝāĻŽā§ 90-96% āĻŦāĻŋāĻļā§āĻĻā§āϧ āĻ
āĻā§āϏāĻŋāĻā§āύ āĻĒāĻžāĻā§āĻž āϝāĻžā§āĨ¤
WHO Link: https://www.who.int/publications/i/item/oxygen-sources-and-distribution-for-covid-19-treatment-centres?fbclid=IwAR0JC6g3lnjFOcgjREPfYYLHX2KJhUkoSeB9_qz1w-OVGrLpC2FQW9mcHJ0
National Guidelines on Clinical Management of Coronavirus Disease 2019 (Covid-19) Link: https://l.facebook.com/l.php?u=http%3A%2F%2Fwww.mohfw.gov.bd%2Findex.php%3Foption%3Dcom_docman%26task%3Ddoc_download%26gid%3D22424%26lang%3Den%26fbclid%3DIwAR2NdBRCJtLsZ4TfV1FhqDPLmyDmUicixBYGqr_7yElCOnEuVZTHpjDkQlk&h=AT1nX_BDWpv830JCulD0sCvU1i1im4yUaafjSXAKLFmZgVMCpx5ylYpyrF_CowOvnJZNNl3OP5SnBUf6vDaO_yThEus2C22BB5O0l9-7AmMSMkPj3sS3nQIhTI6Is5-YhNQmygMdYbMt99q_M6GgCvyB4nMXCkECs0SER6T5xvmm5Py6qVXULN8T74oqMHh3W7oll0rpAc3O24QLeKCqJxh6tqQtWyqxI0NPwFYf3HLyIuFmThhLZsLIAgKmhqXl6YXfs-TgJYgpso25M0qrA5hQ09u4NkWSxjSzc0Am82aPmv7PHIodzUPpqAyBPC9OXvn8Ur1DtJZugqxD0gcFXkBGA9kJRuM50TXvffhtg7VVZvPhK938mv4nKCVQ_IFtvPro_bOdDQKQwNZDYDmHtgNVKMJu3xRsNqRggjtdxkDGu9tR7mZ18meXNw7to9d_8mAdbGc3S9t0G60q_Fo_2ozCkwDLdiEbxcokZed240eq5zo1r0encqIfJNi28VVrnC0aXx3fdAoZPupveEGnlr1oDan4giuHTxq-ycKVeZNUIMNvd1n2rPpNNgXmVzTBWmZt8N2mJwGxvQP2zrQMaJER4rwat5wLymnxjtzwdmwGvH8fUUwzIg3dY2Lk5Ig
WHO āĻāĻžāĻāĻĄāϞāĻžāĻāύ āĻ
āύā§āϝāĻžāϝāĻŧā§ āĻāĻā§āϰāĻžāύā§āϤ Covid-19 āϰā§āĻā§āϰ āĻŽāϧā§āϝ⧠⧧ā§Ģ% Severe āϰā§āĻā§, āϝāĻžāĻĻā§āϰ āĻšāĻžāϏāĻĒāĻžāϤāĻžāϞ⧠āĻāϰā§āϤāĻŋ āĻšāϝāĻŧā§ āĻŦāĻŋāĻāĻŋāύā§āύ āĻŽāĻžāϤā§āϰāĻžāϝāĻŧ āĻ
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āĻā§āϏāĻŋāĻā§āύā§āϰ āĻŽāĻžāϤā§āϰāĻž āĻā§āϞ⧠WHO Link āĻ National Guidelines āĻ āĻĻā§āĻāϝāĻŧāĻž āĻāĻā§)
āĻŦāĻžāϏāĻžā§ āĻāĻŋāĻāĻŋā§āϏāĻž āύā§āĻā§āĻž āϰā§āĻā§āĻĻā§āϰāĻ āĻ
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Dr. Md. Kamal Abdullah
Assistant Professor
IBMC, Dental Unit
Thanks to Dr. Md. Aminur Rahman
Consultant, Anesthesia and Critical Care Medicine, JEWMCH., for helping us with the information....
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