Abstract: The invention relates to a method for the treatment or prevention of hypoperfusions of abdominal organs comprising administering a gaseous medication containing nitrogen monoxide and carbon dioxide to the patient. The gaseous medication is administered by the intra-abdominal route.

Abstract: The process comprises a regeneration phase including a co-current depressurization step, in order to participate in the repressurization of another adsorber, a countercurrent depressurization down to the low pressure of the cycle without gas intake, and then a countercurrent elution step at the low pressure of the cycle with oxygen taken off from production. The cycle time does not exceed 20 seconds. The process is particularly application to the production of oxygen having a purity greater than 90% with flow rates of 2 to 6 liters/minute for oxygenotherapy.

Abstract: A method for treating or preventing ischemia comprising administering to a patient by an intravascular route a gaseous mixture comprising nitric oxide (NO) and carbon dioxide (CO.sub.2), wherein the nitric oxide is present in an amount effective to treat or prevent ischemia.A gaseous mixture for treatment or prevention of ischemia comprising:(i) nitric oxide in an amount effective to prevent ischemia; and(ii) carbon dioxide.

Abstract: The mouthpiece (2) of a respirator (1) is connected to a bottle (8) of a gaseous mixture containing nitric oxide by a line (10) comprising an electrovalve (18) controlled (17) by a signal representing a supply (7, 15, 12) of a flow of respiratory mixture by the respirator (1). The installation is controlled so as to supply, upon inhalation, a gaseous mixture comprising between 21 and 100% of oxygen and between 10 and 50 ppm of nitric oxide.

Abstract: Process for preparing disilane, wherein a raw gas including monosilane, disilane, trisilane and impurities such as phosphine, hydrogen sulfide, arsine, disiloxane and higher siloxanes, undergoes a step of separation by distillation for the substantial elimination of the other compounds of silicon, except disiloxane, and the substantial elimination of phosphine, hydrogen sulfide and arsine impurities, wherein a final purification of the disilane takes place by selective adsorption on molecular sieves, in which one is a sieve of type 3 A and which is used for the elimination of the siloxanes and hydrogen sulfide and the other is a sieve of type 4 A for the elimination of phosphine and arsine.