



{"id":10459,"date":"2026-07-20T10:44:57","date_gmt":"2026-07-20T02:44:57","guid":{"rendered":"https:\/\/www.hbotsale.com\/?p=10459"},"modified":"2026-07-21T11:01:43","modified_gmt":"2026-07-21T03:01:43","slug":"how-much-pressure-is-in-a-hyperbaric-chamber-ata-chart","status":"publish","type":"post","link":"https:\/\/www.hbotsale.com\/fr\/how-much-pressure-is-in-a-hyperbaric-chamber-ata-chart\/","title":{"rendered":"Quelle est la pression \u00e0 l'int\u00e9rieur d'une chambre hyperbare ? Tableau ATA"},"content":{"rendered":"<div class=\"wp-block-themepark-block-themepark-wright content-super-p  blog-jiange\" style=\"font-size:17px;line-height:28px;color:#211c1c;padding:10px 20px;\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p class=\"wp-block-paragraph\">Les chambres \u00e0 oxyg\u00e8ne hyperbares de qualit\u00e9 m\u00e9dicale fonctionnent g\u00e9n\u00e9ralement \u00e0 des pressions comprises entre 2,0 et 3,0 ATA (pression atmosph\u00e9rique absolue), ce qui \u00e9quivaut \u00e0 une pression sup\u00e9rieure de 14,7 \u00e0 29,4 psi \u00e0 la pression atmosph\u00e9rique normale. Cependant, la limite sup\u00e9rieure de pression des cabines logicielles courantes disponibles sur le march\u00e9 est bien inf\u00e9rieure, g\u00e9n\u00e9ralement comprise entre 1,3 et 1,5 ATA (soit 4,4 \u00e0 7,3 psi de plus que la pression ambiante). Si vous choisissez des param\u00e8tres de pression inadapt\u00e9s, votre programme de kin\u00e9sith\u00e9rapie sera pratiquement vou\u00e9 \u00e0 l'\u00e9chec. Si votre condition physique n\u00e9cessite une pression de 2,4 ATA, mais que vous achetez \u00e0 bas prix une cabine \u00e0 basse pression, celle-ci sera absolument inefficace. En revanche, si la pression est trop forte et augmente trop rapidement, cela peut facilement provoquer un barotraumatisme grave de l\u2019oreille moyenne. Dans cet article, nous avons clarifi\u00e9 tous les param\u00e8tres de pression, les points critiques en mati\u00e8re de s\u00e9curit\u00e9 et les conversions techniques de ces subtilit\u00e9s. Gr\u00e2ce \u00e0 ce guide, vous n\u2019aurez aucun mal \u00e0 \u00e9valuer n\u2019importe quel \u00e9quipement.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Hardware_vs_software_what_do_you_think_about_the_pressure_rating\"><\/span>Mat\u00e9riel ou logiciel : que pensez-vous de la pression nominale ?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Lorsque les ing\u00e9nieurs d\u00e9finissent la pression d'une chambre d'oxyg\u00e9noth\u00e9rapie hyperbare, l'une des unit\u00e9s de r\u00e9f\u00e9rence est la \u201c pression atmosph\u00e9rique absolue \u201d (ATA). Pour faire simple, un ATA correspond \u00e0 la pression atmosph\u00e9rique standard que l'on ressent au niveau de la mer. La pression interne qu\u2019une chambre \u00e0 oxyg\u00e8ne peut supporter en toute s\u00e9curit\u00e9 d\u00e9pend enti\u00e8rement de sa r\u00e9sistance structurelle, qu\u2019elle soit fabriqu\u00e9e en polyur\u00e9thane souple ou en acier et acrylique rigides.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Niveau ATA<\/th><th>Profondeur \u00e9quivalente d'eau de mer (FSW)<\/th><th>Pression relative (PSIG) ajout\u00e9e<\/th><th>Type de chambre<\/th><th>Cas d'utilisation principal<\/th><\/tr><\/thead><tbody><tr><td>1.3 ATA<\/td><td>9,9 FSW<\/td><td>4,4 PSIG<\/td><td>Soft-Shell<\/td><td>S\u00e9ances de bien-\u00eatre et de r\u00e9cup\u00e9ration \u00e0 basse pression<\/td><\/tr><tr><td>1,5 ATA<\/td><td>16,5 FSW<\/td><td>7,4 PSIG<\/td><td>Coque souple \/ Coque rigide<\/td><td>Applications hyperbares l\u00e9g\u00e8res et utilisation \u00e0 des fins de bien-\u00eatre sous surveillance<\/td><\/tr><tr><td>2.0 ATA<\/td><td>33,0 FSW<\/td><td>14,7 PSIG<\/td><td>Coque rigide<\/td><td>Oxyg\u00e9noth\u00e9rapie hyperbare clinique standard<\/td><\/tr><tr><td>2.4 ATA<\/td><td>46,2 FSW<\/td><td>20,6 PSIG<\/td><td>Coque rigide<\/td><td>Protocoles cliniques de soins des plaies et de prise en charge des l\u00e9sions dues aux rayonnements<\/td><\/tr><tr><td>3,0 ATA<\/td><td>66,0 FSW<\/td><td>29,4 PSIG<\/td><td>Coque rigide<\/td><td>Protocoles de soins d'urgence et de traitements hyperbares sp\u00e9cialis\u00e9s<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E2%80%9CATA_target_matrix%E2%80%9D_the_right_remedy_can_be_effective\"><\/span>\u201c Matrice cible ATA \u201d : un traitement adapt\u00e9 peut s'av\u00e9rer efficace<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">On ne peut pas traiter toutes les maladies avec le m\u00eame r\u00e9glage de pression. Conform\u00e9ment aux lois de Boyle et d\u2019Henry, la mani\u00e8re dont l\u2019oxyg\u00e8ne se dissout dans le plasma varie en fonction de la profondeur. Pour faciliter la compr\u00e9hension, nous avons divis\u00e9 la pression cible en trois niveaux.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"13_to_15_ATA_Mild_OxygenSoft_Cabin\"><\/span>1,3 \u00e0 1,5 ATA (oxyg\u00e9noth\u00e9rapie l\u00e9g\u00e8re \/ cabine \u00e0 pression r\u00e9duite)<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Le compartiment pour mat\u00e9riel informatique muni d\u2019une fermeture \u00e9clair reste essentiellement dans cette zone de basse pression, ce qui n\u2019ajoutera que 4,4 \u00e0 7,3 psi de pression au compartiment. Les sportifs et les biohackers appr\u00e9cient cette pression, principalement pour la r\u00e9cup\u00e9ration musculaire de base, le d\u00e9calage horaire et les soins de sant\u00e9 quotidiens. Mais sachez que la FDA (Food and Drug Administration am\u00e9ricaine) ne reconna\u00eet pas que la pression de 1,3 ATA puisse \u00eatre utilis\u00e9e pour traiter des pathologies m\u00e9dicales graves. Une pression de 1,3 ATA augmente certes l\u00e9g\u00e8rement la saturation en oxyg\u00e8ne des tissus par rapport \u00e0 la normale, mais vouloir forcer l'oxyg\u00e8ne \u00e0 p\u00e9n\u00e9trer dans le tissu osseux n\u00e9crotique ? C'est tout simplement impossible.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"20_to_24_ATA_clinical_therapeutic_grade\"><\/span>2,0 \u00e0 2,4 ATA (niveau th\u00e9rapeutique clinique)<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Les h\u00f4pitaux et les cliniques sp\u00e9cialis\u00e9es utilisent g\u00e9n\u00e9ralement une pression comprise entre 2,0 et 2,4 ATA pour traiter diverses maladies chroniques approuv\u00e9es par la FDA. \u00c0 2,0 ATA (ce qui \u00e9quivaut \u00e0 une plong\u00e9e \u00e0 33 pieds sous l\u2019eau), l\u2019oxyg\u00e8ne se dissout directement et m\u00e9caniquement dans le plasma, contournant compl\u00e8tement le r\u00f4le de \u201c transporteur \u201d jou\u00e9 par les globules rouges. S\u2019il s\u2019agit de traiter des ulc\u00e8res du pied diab\u00e9tique, des l\u00e9sions tissulaires dues \u00e0 la radioth\u00e9rapie ou des lambeaux chirurgicaux qui ne cicatrisent pas, la clinique r\u00e8gle g\u00e9n\u00e9ralement la pression directement \u00e0 2,4 ATA. Pour atteindre ce niveau de traitement, il faut disposer d\u2019une cabine individuelle \u00e0 structure rigide, en acrylique ou en acier.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"25_to_30_ATA_Acute_Emergency_Medical\"><\/span>2,5 \u00e0 3,0 ATA (soins m\u00e9dicaux d'urgence)<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Les grandes cabines hospitali\u00e8res pouvant accueillir plusieurs personnes peuvent atteindre une pression de 3,0 ATA (29,4 PSIG), ce qui permet de sauver des vies. Les m\u00e9decins n\u2019ont recours \u00e0 cette pression extr\u00eame que dans les cas d\u2019intoxication aigu\u00eb au monoxyde de carbone, d\u2019embolie gazeuse art\u00e9rielle grave et de maladie de d\u00e9compression (maladie des plongeurs). L'inhalation d'oxyg\u00e8ne pur \u00e0 100 % \u00e0 une pression de 3,0 ATA est soumise \u00e0 une limite de temps stricte (g\u00e9n\u00e9ralement de 60 \u00e0 90 minutes). Si cette limite est d\u00e9pass\u00e9e, les patients courent un risque \u00e9lev\u00e9 de toxicit\u00e9 oxyg\u00e9nique du syst\u00e8me nerveux central (SNC).<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"575\" src=\"https:\/\/www.hbotsale.com\/wp-content\/uploads\/2026\/07\/pasted-image-20260721-025934-984-1024x575.png\" alt=\" Ins\u00e9rez un graphique lin\u00e9aire en 2D repr\u00e9sentant la saturation tissulaire en oxyg\u00e8ne (mmHg) sur l&#039;axe des Y et la pression (ATA) sur l&#039;axe des X, illustrant visuellement le pic massif de saturation observ\u00e9 lors du franchissement du seuil de 2,0 ATA.\" class=\"wp-image-10460\" srcset=\"https:\/\/www.hbotsale.com\/wp-content\/uploads\/2026\/07\/pasted-image-20260721-025934-984-1024x575.png 1024w, https:\/\/www.hbotsale.com\/wp-content\/uploads\/2026\/07\/pasted-image-20260721-025934-984-300x168.png 300w, https:\/\/www.hbotsale.com\/wp-content\/uploads\/2026\/07\/pasted-image-20260721-025934-984-768x431.png 768w, https:\/\/www.hbotsale.com\/wp-content\/uploads\/2026\/07\/pasted-image-20260721-025934-984-18x10.png 18w, https:\/\/www.hbotsale.com\/wp-content\/uploads\/2026\/07\/pasted-image-20260721-025934-984.png 1526w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Businessmens_Flicker_ATA_and_PSI_Digital_Games\"><\/span>Le \u00ab Flicker \u00bb des hommes d'affaires : ATA et PSI Digital Games<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Les constructeurs qui commercialisent des cabines d'entr\u00e9e de gamme aiment manipuler les donn\u00e9es de pression, ce qui donne le tournis aux acheteurs qui font leurs recherches.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Comment trompent-ils les gens ? En exploitant la diff\u00e9rence conceptuelle entre la \u201c pression absolue (ATA) \u201d et la \u201c pression manom\u00e9trique (PSIG) \u201c. Nous savons tous qu\u201d1 ATA \u00e9quivaut \u00e0 14,7 psi. Certains commer\u00e7ants malhonn\u00eates \u00e9tiquettent leurs cabines de simulation comme des \u201c cabines haute pression haute performance \u00e0 14,7 PSI ! \u201d L\u2019astuce semble un peu tir\u00e9e par les cheveux, n\u2019est-ce pas ? Mais en r\u00e9alit\u00e9, ce chiffre ne repr\u00e9sente que la pression gravitationnelle normale de la Terre : cette cabine d\u00e9fectueuse n\u2019ajoute absolument aucune pression suppl\u00e9mentaire ! Par cons\u00e9quent, lors de l\u2019achat, veillez \u00e0 demander quelle est la \u00ab pression manom\u00e9trique (PSIG) \u00bb. Une cabine authentique de 1,3 ATA pr\u00e9sente une pression manom\u00e9trique d\u2019environ 4,4 PSIG. Quant \u00e0 une cabine m\u00e9dicale de 2,0 ATA, sa pression manom\u00e9trique est de 14,7 PSIG. Si la valeur ATA sp\u00e9cifique n\u2019est pas confirm\u00e9e, ne vous pr\u00e9cipitez pas pour payer.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Anti-pit_guide_How_to_pressurize_to_protect_your_ears\"><\/span>Guide anti-pit : comment se mettre sous pression pour prot\u00e9ger ses oreilles ?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Pour les personnes qui suivent un traitement par oxyg\u00e9noth\u00e9rapie hyperbare pour la premi\u00e8re fois, le barotraumatisme de l\u2019oreille moyenne constitue sans aucun doute le principal risque pour la s\u00e9curit\u00e9. Il convient de noter que cette l\u00e9sion ne survient que pendant la phase de \u201c pressurisation \u201d (c'est-\u00e0-dire d'augmentation de la pression), car l'augmentation de la pression dans la cabine d\u00e9passe la vitesse \u00e0 laquelle la trompe d'Eustache du patient s'adapte, et non parce qu'elle est caus\u00e9e par un s\u00e9jour trop long \u00e0 la pression la plus \u00e9lev\u00e9e.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Linear_Pressurization_vs_Ladder_Pressurization\"><\/span>Pressurisation lin\u00e9aire vs pressurisation en \u00e9chelle<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Les donn\u00e9es cliniques ont clairement indiqu\u00e9 comment proc\u00e9der \u00e0 la mise sous pression. Si le patient est \u201c amen\u00e9 \u201d \u00e0 2,0 ATA en moins de 3 minutes, pr\u00e8s de 18% des personnes ressentiront une douleur aux oreilles. Les op\u00e9rateurs qualifi\u00e9s de chambres \u00e0 oxyg\u00e8ne appliqueront un taux de mise sous pression lent et contr\u00f4l\u00e9, d\u2019environ 1,0 \u00e0 1,5 psi par minute. Il faut au moins 10 \u00e0 12 minutes pour atteindre la profondeur de traitement de 2,0 ATA. Si le patient ressent une sensation d\u2019oreille bouch\u00e9e ou une douleur auriculaire, l\u2019op\u00e9rateur interrompra imm\u00e9diatement la mise sous pression \u2013 c\u2019est ce qu\u2019on appelle la \u201c m\u00e9thode de mise sous pression par paliers \u201d \u2013 afin de laisser au patient le temps d\u2019avaler, de b\u00e2iller ou d\u2019effectuer des man\u0153uvres de Valsalva (se pincer le nez et retenir l\u2019expiration), puis reprendra la mise sous pression une fois que l\u2019oreille se sera adapt\u00e9e.<\/p>\n\n\n\n<iframe loading=\"lazy\" width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/NYnnAH2iInc?si=AadXhLwkXHVZR-rc\" title=\"Lecteur vid\u00e9o YouTube\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Frequently_Asked_Questions_People_Also_Ask\"><\/span>Foire aux questions (Questions fr\u00e9quentes)<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Quelle pression doit-on r\u00e9gler dans une chambre \u00e0 oxyg\u00e8ne hyperbare pour favoriser la cicatrisation des plaies ?<\/strong><br>Pour la cicatrisation de plaies complexes, telles que les ulc\u00e8res diab\u00e9tiques ou les l\u00e9sions radiques retard\u00e9es, les professionnels de sant\u00e9 peuvent recourir de mani\u00e8re rigoureuse \u00e0 des pressions comprises entre 2,0 et 2,4 ATA (14,7 \u00e0 20,5 PSIG). Le type de capsule souple fonctionnant \u00e0 1,3 ATA ne permet pas d\u2019atteindre la saturation en oxyg\u00e8ne plasmatique n\u00e9cessaire \u00e0 la r\u00e9g\u00e9n\u00e9ration des tissus profonds.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u00c0 quelle profondeur sous l'eau correspond une pression de 2,0 ATA ?<\/strong><br>La pression interne de 2,0 ATA correspond exactement \u00e0 la pression physique ressentie par un plongeur \u00e0 une profondeur de 33 pieds (10 m\u00e8tres). Si elle est de 3,0 ATA, cela \u00e9quivaut \u00e0 une profondeur de 66 pieds (20 m\u00e8tres).<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>La pression dans la chambre hyperbare peut-elle endommager vos oreilles ?<\/strong><br>Je le ferai. Si la pression dans la cabine augmente trop rapidement, cela peut provoquer un barotraumatisme de l'oreille moyenne, entra\u00eenant des douleurs auriculaires, une accumulation de liquide, voire une perforation du tympan. Des techniciens qualifi\u00e9s prolongeront la dur\u00e9e de la mise en pression \u00e0 10 \u00e0 15 minutes afin d'\u00e9viter ce risque, laissant ainsi suffisamment de temps au patient pour \u00e9quilibrer la pression dans l'oreille.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Quelle est la pression maximale d'une chambre \u00e0 oxyg\u00e8ne hyperbare souple ?<\/strong><br>La limite du compartiment \u00e0 fermeture \u00e9clair destin\u00e9 au mat\u00e9riel informatique est de 1,5 ATA. En raison de leurs propri\u00e9t\u00e9s physiques, ces mat\u00e9riaux souples (nylon, toile et polyur\u00e9thane) ne peuvent supporter une pression sup\u00e9rieure \u00e0 7,3 PSIG. S\u2019ils sont soumis \u00e0 une pression trop \u00e9lev\u00e9e, ils \u00e9clateront in\u00e9vitablement de mani\u00e8re catastrophique.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Pourquoi certaines cabines portent-elles la mention \u00ab PSI \u00bb et d'autres \u00ab ATA \u00bb ?<\/strong><br>L\u2019ATA (pression atmosph\u00e9rique absolue) est l\u2019unit\u00e9 standard utilis\u00e9e en m\u00e9decine pour mesurer la pression totale. Le PSI (livres par pouce carr\u00e9), en revanche, d\u00e9signe g\u00e9n\u00e9ralement la \u201c pression manom\u00e9trique \u201d g\u00e9n\u00e9r\u00e9e par un compresseur d\u2019air. Rappelons que 1,0 ATA correspond toujours \u00e0 la pression barom\u00e9trique standard au niveau de la mer (c'est-\u00e0-dire une pression absolue de 14,7 PSI, ou une pression manom\u00e9trique de 0 PSI).<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Une personne peut-elle ressentir la pression dans la cabine ?<\/strong><br>Vous ne ressentirez le changement de pression physique dans les oreilles et les sinus que lors de la mise sous pression initiale (\u00e9quivalente \u00e0 une plong\u00e9e) et de la d\u00e9compression finale (flottaison). Une fois que la cabine aura atteint la pression souhait\u00e9e et que celle-ci se sera stabilis\u00e9e, votre corps ne ressentira plus aucune pression ni aucune sensation de 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